UPDATE: Add a dialog when 'Share' buttons is clickled

.github/workflows/pypi.yml

@@ -32,9 +32,9 @@ jobs:
           manylinux: auto
           working-directory: bindings/python
       - name: Upload wheels
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v3
         with:
-          name: wheels-${{ runner.os }}-${{ matrix.target }}
+          name: wheels
           path: bindings/python/dist
 
   windows:
@@ -56,9 +56,9 @@ jobs:
           sccache: 'true'
           working-directory: bindings/python
       - name: Upload wheels
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v3
         with:
-          name: wheels-${{ runner.os }}-${{ matrix.target }}
+          name: wheels
           path: bindings/python/dist
 
   macos:
@@ -79,9 +79,9 @@ jobs:
           sccache: 'true'
           working-directory: bindings/python
       - name: Upload wheels
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v3
         with:
-          name: wheels-${{ runner.os }}-${{ matrix.target }}
+          name: wheels
           path: bindings/python/dist
 
   sdist:
@@ -95,9 +95,9 @@ jobs:
           args: --out dist
           working-directory: bindings/python
       - name: Upload sdist
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v3
         with:
-          name: wheels-${{ runner.os }}-sdist
+          name: wheels
           path: bindings/python/dist
 
   publish-to-test-pypi:
@@ -107,8 +107,9 @@ jobs:
     runs-on: ubuntu-latest
     needs: [linux, windows, macos, sdist]
     steps:
-      - uses: actions/download-artifact@v4
+      - uses: actions/download-artifact@v3
         with:
+          name: wheels
           path: bindings/python/
       - name: Publish distribution 📦 to Test PyPI
         uses: PyO3/maturin-action@v1
@@ -117,7 +118,7 @@ jobs:
           MATURIN_REPOSITORY_URL: "https://test.pypi.org/legacy/"
         with:
           command: upload
-          args: "--skip-existing **/*.whl **/*.tar.gz"
+          args: --skip-existing *
           working-directory: bindings/python
 
   publish-pypi:
@@ -127,8 +128,9 @@ jobs:
     runs-on: ubuntu-latest
     needs: [linux, windows, macos, sdist]
     steps:
-      - uses: actions/download-artifact@v4
+      - uses: actions/download-artifact@v3
         with:
+          name: wheels
           path: bindings/python/
       - name: Publish distribution 📦 to PyPI
         uses: PyO3/maturin-action@v1
@@ -137,5 +139,5 @@ jobs:
           MATURIN_REPOSITORY_URL: "https://upload.pypi.org/legacy/"
         with:
           command: upload
-          args: "--skip-existing **/*.whl **/*.tar.gz"
+          args: --skip-existing *
           working-directory: bindings/python

Cargo.lock

@@ -414,7 +414,7 @@ dependencies = [
 
 [[package]]
 name = "ironcalc"
-version = "0.6.0"
+version = "0.3.0"
 dependencies = [
  "bitcode",
  "chrono",
@@ -430,13 +430,14 @@ dependencies = [
 
 [[package]]
 name = "ironcalc_base"
-version = "0.6.0"
+version = "0.3.0"
 dependencies = [
  "bitcode",
  "chrono",
  "chrono-tz",
  "csv",
  "js-sys",
+ "once_cell",
  "rand",
  "regex",
  "regex-lite",
@@ -447,7 +448,7 @@ dependencies = [
 
 [[package]]
 name = "ironcalc_nodejs"
-version = "0.6.0"
+version = "0.3.1"
 dependencies = [
  "ironcalc",
  "napi",
@@ -720,10 +721,11 @@ dependencies = [
 
 [[package]]
 name = "pyo3"
-version = "0.25.0"
+version = "0.23.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f239d656363bcee73afef85277f1b281e8ac6212a1d42aa90e55b90ed43c47a4"
+checksum = "57fe09249128b3173d092de9523eaa75136bf7ba85e0d69eca241c7939c933cc"
 dependencies = [
+ "cfg-if",
  "indoc",
  "libc",
  "memoffset",
@@ -737,9 +739,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-build-config"
-version = "0.25.0"
+version = "0.23.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "755ea671a1c34044fa165247aaf6f419ca39caa6003aee791a0df2713d8f1b6d"
+checksum = "1cd3927b5a78757a0d71aa9dff669f903b1eb64b54142a9bd9f757f8fde65fd7"
 dependencies = [
  "once_cell",
  "target-lexicon",
@@ -747,9 +749,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-ffi"
-version = "0.25.0"
+version = "0.23.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fc95a2e67091e44791d4ea300ff744be5293f394f1bafd9f78c080814d35956e"
+checksum = "dab6bb2102bd8f991e7749f130a70d05dd557613e39ed2deeee8e9ca0c4d548d"
 dependencies = [
  "libc",
  "pyo3-build-config",
@@ -757,9 +759,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-macros"
-version = "0.25.0"
+version = "0.23.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a179641d1b93920829a62f15e87c0ed791b6c8db2271ba0fd7c2686090510214"
+checksum = "91871864b353fd5ffcb3f91f2f703a22a9797c91b9ab497b1acac7b07ae509c7"
 dependencies = [
  "proc-macro2",
  "pyo3-macros-backend",
@@ -769,9 +771,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-macros-backend"
-version = "0.25.0"
+version = "0.23.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9dff85ebcaab8c441b0e3f7ae40a6963ecea8a9f5e74f647e33fcf5ec9a1e89e"
+checksum = "43abc3b80bc20f3facd86cd3c60beed58c3e2aa26213f3cda368de39c60a27e4"
 dependencies = [
  "heck",
  "proc-macro2",
@@ -782,9 +784,8 @@ dependencies = [
 
 [[package]]
 name = "pyroncalc"
-version = "0.6.0"
+version = "0.3.0"
 dependencies = [
- "bitcode",
  "ironcalc",
  "pyo3",
  "serde",
@@ -871,12 +872,6 @@ version = "0.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3cd14fd5e3b777a7422cca79358c57a8f6e3a703d9ac187448d0daf220c2407f"
 
-[[package]]
-name = "rustversion"
-version = "1.0.21"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8a0d197bd2c9dc6e53b84da9556a69ba4cdfab8619eb41a8bd1cc2027a0f6b1d"
-
 [[package]]
 name = "ryu"
 version = "1.0.17"
@@ -984,9 +979,9 @@ dependencies = [
 
 [[package]]
 name = "target-lexicon"
-version = "0.13.2"
+version = "0.12.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e502f78cdbb8ba4718f566c418c52bc729126ffd16baee5baa718cf25dd5a69a"
+checksum = "61c41af27dd6d1e27b1b16b489db798443478cef1f06a660c96db617ba5de3b1"
 
 [[package]]
 name = "thiserror"
@@ -1075,7 +1070,7 @@ checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
 [[package]]
 name = "wasm"
-version = "0.6.0"
+version = "0.3.2"
 dependencies = [
  "ironcalc_base",
  "serde",
@@ -1086,24 +1081,23 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen"
-version = "0.2.100"
+version = "0.2.92"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1edc8929d7499fc4e8f0be2262a241556cfc54a0bea223790e71446f2aab1ef5"
+checksum = "4be2531df63900aeb2bca0daaaddec08491ee64ceecbee5076636a3b026795a8"
 dependencies = [
  "cfg-if",
- "once_cell",
- "rustversion",
  "wasm-bindgen-macro",
 ]
 
 [[package]]
 name = "wasm-bindgen-backend"
-version = "0.2.100"
+version = "0.2.92"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2f0a0651a5c2bc21487bde11ee802ccaf4c51935d0d3d42a6101f98161700bc6"
+checksum = "614d787b966d3989fa7bb98a654e369c762374fd3213d212cfc0251257e747da"
 dependencies = [
  "bumpalo",
  "log",
+ "once_cell",
  "proc-macro2",
  "quote",
  "syn",
@@ -1124,9 +1118,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro"
-version = "0.2.100"
+version = "0.2.92"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7fe63fc6d09ed3792bd0897b314f53de8e16568c2b3f7982f468c0bf9bd0b407"
+checksum = "a1f8823de937b71b9460c0c34e25f3da88250760bec0ebac694b49997550d726"
 dependencies = [
  "quote",
  "wasm-bindgen-macro-support",
@@ -1134,9 +1128,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro-support"
-version = "0.2.100"
+version = "0.2.92"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8ae87ea40c9f689fc23f209965b6fb8a99ad69aeeb0231408be24920604395de"
+checksum = "e94f17b526d0a461a191c78ea52bbce64071ed5c04c9ffe424dcb38f74171bb7"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1147,12 +1141,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-shared"
-version = "0.2.100"
+version = "0.2.92"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1a05d73b933a847d6cccdda8f838a22ff101ad9bf93e33684f39c1f5f0eece3d"
+checksum = "af190c94f2773fdb3729c55b007a722abb5384da03bc0986df4c289bf5567e96"
-dependencies = [
- "unicode-ident",
-]
 
 [[package]]
 name = "wasm-bindgen-test"

Dockerfile

@@ -1,93 +0,0 @@
-FROM rust:latest AS builder
-
-WORKDIR /app
-COPY . .
-
-# Tools + wasm toolchain + Node via nvm
-RUN apt-get update && apt-get install -y --no-install-recommends \
-      bash curl ca-certificates make \
-    && rustup target add wasm32-unknown-unknown \
-    && cargo install wasm-pack \
-    && bash -lc "curl -fsSL https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.3/install.sh | bash -" \
-    && bash -lc '\
-         export NVM_DIR="$HOME/.nvm" && \
-         source "$NVM_DIR/nvm.sh" && \
-         nvm install 22 && nvm alias default 22 && \
-         nroot="$NVM_DIR/versions/node/$(nvm version default)/bin" && \
-         ln -sf "$nroot/node" /usr/local/bin/node && \
-         ln -sf "$nroot/npm"  /usr/local/bin/npm  && \
-         ln -sf "$nroot/npx"  /usr/local/bin/npx \
-       ' \
-    && npm install typescript \
-    && rm -rf /var/lib/apt/lists/*
-
-# build the server
-RUN cargo build --release --manifest-path webapp/app.ironcalc.com/server/Cargo.toml
-
-# build the wasm
-RUN make -C bindings/wasm
-
-# build the widget
-WORKDIR /app/webapp/IronCalc
-RUN npm install && npm run build
-
-# build the frontend app
-WORKDIR /app/webapp/app.ironcalc.com/frontend
-RUN npm install && npm run build
-
-# build the xlsx_2_icalc binary (we don't need the release version here)
-WORKDIR /app/xlsx
-RUN cargo build
-
-WORKDIR /app
-# copy the artifacts to a dist/ directory
-RUN mkdir dist
-RUN mkdir dist/frontend
-RUN cp -r webapp/app.ironcalc.com/frontend/dist/* dist/frontend/
-RUN mkdir dist/server
-RUN cp webapp/app.ironcalc.com/server/target/release/ironcalc_server dist/server/
-RUN cp webapp/app.ironcalc.com/server/Rocket.toml dist/server/
-RUN cp webapp/app.ironcalc.com/server/ironcalc.sqlite dist/server/
-
-# Create ic files in docs
-RUN mkdir -p dist/frontend/models
-
-# Loop over all xlsx files in xlsx/tests/docs & templates and convert them to .ic
-RUN bash -lc 'set -euo pipefail; \
-  mkdir -p dist/frontend/models; \
-  shopt -s nullglob; \
-  for xlsx_file in xlsx/tests/docs/*.xlsx; do \
-    base_name="${xlsx_file##*/}"; base_name="${base_name%.xlsx}"; \
-    ./target/debug/xlsx_2_icalc "$xlsx_file" "dist/frontend/models/${base_name}.ic"; \
-  done; \
-  for xlsx_file in xlsx/tests/templates/*.xlsx; do \
-    base_name="${xlsx_file##*/}"; base_name="${base_name%.xlsx}"; \
-    ./target/debug/xlsx_2_icalc "$xlsx_file" "dist/frontend/models/${base_name}.ic"; \
-  done'
-
-# ---------- server runtime ----------
-FROM debian:bookworm-slim AS server-runtime
-RUN apt-get update && apt-get install -y --no-install-recommends ca-certificates && \
-    rm -rf /var/lib/apt/lists/*
-WORKDIR /app
-# Copy EVERYTHING you put in dist/server (binary + Rocket.toml + DB)
-COPY --from=builder /app/dist/server/ ./
-# Make sure Rocket binds to the container IP; explicitly point to the config file
-ENV ROCKET_ADDRESS=0.0.0.0 \
-    ROCKET_PORT=8000 \
-    ROCKET_CONFIG=/app/Rocket.toml
-EXPOSE 8000
-# Run from /app so relative paths in Rocket.toml/DB work
-CMD ["./ironcalc_server"]
-
-# ---------- caddy runtime (serves frontend + reverse-proxy /api) ----------
-FROM caddy:latest AS caddy-runtime
-
-WORKDIR /srv
-
-# Copy the frontend build output to /srv
-COPY --from=builder /app/dist/frontend/ /srv/
-
-# Copy the Caddyfile
-COPY --from=builder /app/webapp/app.ironcalc.com/Caddyfile.compose /etc/caddy/Caddyfile
-

README.md

@@ -31,17 +31,7 @@ This repository contains the main engine and the xlsx reader and writer.
 
 Programmed in Rust, you will be able to use it from a variety of programming languages like Python, JavaScript (wasm), nodejs and possibly R, Julia or Go.
 
-We will build different _skins_: in the terminal, as a desktop application or use it in your own web application.
+We will build different _skins_: in the terminal, as a desktop application or use it in you own web application.
-
-# Docker
-
-If you have docker installed just run:
-
-```bash
-docker compose up --build
-```
-
-head over to <http://localhost:2080> to test the application.
 
 # Building
 
@@ -87,14 +77,14 @@ And visit <http://0.0.0.0:8000/ironcalc/>
 Add the dependency to `Cargo.toml`:
 ```toml
 [dependencies]
-ironcalc = { git = "https://github.com/ironcalc/IronCalc", version = "0.5"}
+ironcalc = { git = "https://github.com/ironcalc/IronCalc", version = "0.1"}
 ```
 
 And then use this code in `main.rs`:
 
 ```rust
 use ironcalc::{
-    base::{expressions::utils::number_to_column, Model},
+    base::{expressions::utils::number_to_column, model::Model},
     export::save_to_xlsx,
 };
 

base/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ironcalc_base"
-version = "0.6.0"
+version = "0.3.0"
 authors = ["Nicolás Hatcher <nicolas@theuniverse.today>"]
 edition = "2021"
 homepage = "https://www.ironcalc.com"
@@ -17,6 +17,7 @@ chrono = "0.4"
 chrono-tz = "0.10"
 regex = { version = "1.0", optional = true}
 regex-lite = { version = "0.1.6", optional = true}
+once_cell = "1.16.0"
 bitcode = "0.6.3"
 csv = "1.3.0"
 

base/src/actions.rs

@@ -1,6 +1,5 @@
 use crate::constants::{LAST_COLUMN, LAST_ROW};
-use crate::expressions::parser::stringify::{to_string, to_string_displaced, DisplaceData};
+use crate::expressions::parser::stringify::DisplaceData;
-use crate::expressions::types::CellReferenceRC;
 use crate::model::Model;
 
 // NOTE: There is a difference with Excel behaviour when deleting cells/rows/columns
@@ -9,45 +8,16 @@ use crate::model::Model;
 // I feel this is unimportant for now.
 
 impl Model {
-    fn shift_cell_formula(
-        &mut self,
-        sheet: u32,
-        row: i32,
-        column: i32,
-        displace_data: &DisplaceData,
-    ) -> Result<(), String> {
-        if let Some(f) = self
-            .workbook
-            .worksheet(sheet)?
-            .cell(row, column)
-            .and_then(|c| c.get_formula())
-        {
-            let node = &self.parsed_formulas[sheet as usize][f as usize].clone();
-            let cell_reference = CellReferenceRC {
-                sheet: self.workbook.worksheets[sheet as usize].get_name(),
-                row,
-                column,
-            };
-            // FIXME: This is not a very performant way if the formula has changed :S.
-            let formula = to_string(node, &cell_reference);
-            let formula_displaced = to_string_displaced(node, &cell_reference, displace_data);
-            if formula != formula_displaced {
-                self.update_cell_with_formula(sheet, row, column, format!("={formula_displaced}"))?;
-            }
-        }
-        Ok(())
-    }
     /// This function iterates over all cells in the model and shifts their formulas according to the displacement data.
     ///
     /// # Arguments
     ///
     /// * `displace_data` - A reference to `DisplaceData` describing the displacement's direction and magnitude.
-    fn displace_cells(&mut self, displace_data: &DisplaceData) -> Result<(), String> {
+    fn displace_cells(&mut self, displace_data: &DisplaceData) {
         let cells = self.get_all_cells();
         for cell in cells {
-            self.shift_cell_formula(cell.index, cell.row, cell.column, displace_data)?;
+            self.shift_cell_formula(cell.index, cell.row, cell.column, displace_data);
         }
-        Ok(())
     }
 
     /// Retrieves the column indices for a specific row in a given sheet, sorted in ascending or descending order.
@@ -164,7 +134,7 @@ impl Model {
                 column,
                 delta: column_count,
             }),
-        )?;
+        );
 
         // In the list of columns:
         // * Keep all the columns to the left
@@ -212,12 +182,6 @@ impl Model {
         if column_count <= 0 {
             return Err("Please use insert columns instead".to_string());
         }
-        if !(1..=LAST_COLUMN).contains(&column) {
-            return Err(format!("Column number '{column}' is not valid."));
-        }
-        if column + column_count - 1 > LAST_COLUMN {
-            return Err("Cannot delete columns beyond the last column of the sheet".to_string());
-        }
 
         // first column being deleted
         let column_start = column;
@@ -250,7 +214,7 @@ impl Model {
                 column,
                 delta: -column_count,
             }),
-        )?;
+        );
         let worksheet = &mut self.workbook.worksheet_mut(sheet)?;
 
         // deletes all the column styles
@@ -374,7 +338,7 @@ impl Model {
                 row,
                 delta: row_count,
             }),
-        )?;
+        );
 
         Ok(())
     }
@@ -390,13 +354,6 @@ impl Model {
         if row_count <= 0 {
             return Err("Please use insert rows instead".to_string());
         }
-        if !(1..=LAST_ROW).contains(&row) {
-            return Err(format!("Row number '{row}' is not valid."));
-        }
-        if row + row_count - 1 > LAST_ROW {
-            return Err("Cannot delete rows beyond the last row of the sheet".to_string());
-        }
-
         // Move cells
         let worksheet = &self.workbook.worksheet(sheet)?;
         let mut all_rows: Vec<i32> = worksheet.sheet_data.keys().copied().collect();
@@ -442,7 +399,7 @@ impl Model {
                 row,
                 delta: -row_count,
             }),
-        )?;
+        );
         Ok(())
     }
 
@@ -457,86 +414,23 @@ impl Model {
     ///    * Column is one of the extremes of the range. The new extreme would be target_column.
     ///      Range is then normalized
     ///    * Any other case, range is left unchanged.
-    ///      NOTE: This moves the data and column styles along with the formulas
+    ///      NOTE: This does NOT move the data in the columns or move the colum styles
     pub fn move_column_action(
         &mut self,
         sheet: u32,
         column: i32,
         delta: i32,
-    ) -> Result<(), String> {
+    ) -> Result<(), &'static str> {
         // Check boundaries
         let target_column = column + delta;
         if !(1..=LAST_COLUMN).contains(&target_column) {
-            return Err("Target column out of boundaries".to_string());
+            return Err("Target column out of boundaries");
         }
         if !(1..=LAST_COLUMN).contains(&column) {
-            return Err("Initial column out of boundaries".to_string());
+            return Err("Initial column out of boundaries");
         }
 
-        if delta == 0 {
+        // TODO: Add the actual displacement of data and styles
-            return Ok(());
-        }
-
-        // Preserve cell contents, width and style of the column being moved
-        let original_refs = self
-            .workbook
-            .worksheet(sheet)?
-            .column_cell_references(column)?;
-        let mut original_cells = Vec::new();
-        for r in &original_refs {
-            let cell = self
-                .workbook
-                .worksheet(sheet)?
-                .cell(r.row, column)
-                .ok_or("Expected Cell to exist")?;
-            let style_idx = cell.get_style();
-            let formula_or_value = self
-                .get_cell_formula(sheet, r.row, column)?
-                .unwrap_or_else(|| cell.get_text(&self.workbook.shared_strings, &self.language));
-            original_cells.push((r.row, formula_or_value, style_idx));
-            self.cell_clear_all(sheet, r.row, column)?;
-        }
-
-        let width = self.workbook.worksheet(sheet)?.get_column_width(column)?;
-        let style = self.workbook.worksheet(sheet)?.get_column_style(column)?;
-
-        if delta > 0 {
-            for c in column + 1..=target_column {
-                let refs = self.workbook.worksheet(sheet)?.column_cell_references(c)?;
-                for r in refs {
-                    self.move_cell(sheet, r.row, c, r.row, c - 1)?;
-                }
-
-                let w = self.workbook.worksheet(sheet)?.get_column_width(c)?;
-                let s = self.workbook.worksheet(sheet)?.get_column_style(c)?;
-                self.workbook
-                    .worksheet_mut(sheet)?
-                    .set_column_width_and_style(c - 1, w, s)?;
-            }
-        } else {
-            for c in (target_column..=column - 1).rev() {
-                let refs = self.workbook.worksheet(sheet)?.column_cell_references(c)?;
-                for r in refs {
-                    self.move_cell(sheet, r.row, c, r.row, c + 1)?;
-                }
-
-                let w = self.workbook.worksheet(sheet)?.get_column_width(c)?;
-                let s = self.workbook.worksheet(sheet)?.get_column_style(c)?;
-                self.workbook
-                    .worksheet_mut(sheet)?
-                    .set_column_width_and_style(c + 1, w, s)?;
-            }
-        }
-
-        for (r, value, style_idx) in original_cells {
-            self.set_user_input(sheet, r, target_column, value)?;
-            self.workbook
-                .worksheet_mut(sheet)?
-                .set_cell_style(r, target_column, style_idx)?;
-        }
-        self.workbook
-            .worksheet_mut(sheet)?
-            .set_column_width_and_style(target_column, width, style)?;
 
         // Update all formulas in the workbook
         self.displace_cells(
@@ -545,91 +439,7 @@ impl Model {
                 column,
                 delta,
             }),
-        )?;
+        );
-
-        Ok(())
-    }
-
-    /// Displaces cells due to a move row action
-    /// from initial_row to target_row = initial_row + row_delta
-    /// References will be updated following the same rules as move_column_action
-    /// NOTE: This moves the data and row styles along with the formulas
-    pub fn move_row_action(&mut self, sheet: u32, row: i32, delta: i32) -> Result<(), String> {
-        // Check boundaries
-        let target_row = row + delta;
-        if !(1..=LAST_ROW).contains(&target_row) {
-            return Err("Target row out of boundaries".to_string());
-        }
-        if !(1..=LAST_ROW).contains(&row) {
-            return Err("Initial row out of boundaries".to_string());
-        }
-
-        if delta == 0 {
-            return Ok(());
-        }
-
-        let original_cols = self.get_columns_for_row(sheet, row, false)?;
-        let mut original_cells = Vec::new();
-        for c in &original_cols {
-            let cell = self
-                .workbook
-                .worksheet(sheet)?
-                .cell(row, *c)
-                .ok_or("Expected Cell to exist")?;
-            let style_idx = cell.get_style();
-            let formula_or_value = self
-                .get_cell_formula(sheet, row, *c)?
-                .unwrap_or_else(|| cell.get_text(&self.workbook.shared_strings, &self.language));
-            original_cells.push((*c, formula_or_value, style_idx));
-            self.cell_clear_all(sheet, row, *c)?;
-        }
-
-        if delta > 0 {
-            for r in row + 1..=target_row {
-                let cols = self.get_columns_for_row(sheet, r, false)?;
-                for c in cols {
-                    self.move_cell(sheet, r, c, r - 1, c)?;
-                }
-            }
-        } else {
-            for r in (target_row..=row - 1).rev() {
-                let cols = self.get_columns_for_row(sheet, r, false)?;
-                for c in cols {
-                    self.move_cell(sheet, r, c, r + 1, c)?;
-                }
-            }
-        }
-
-        for (c, value, style_idx) in original_cells {
-            self.set_user_input(sheet, target_row, c, value)?;
-            self.workbook
-                .worksheet_mut(sheet)?
-                .set_cell_style(target_row, c, style_idx)?;
-        }
-
-        let worksheet = &mut self.workbook.worksheet_mut(sheet)?;
-        let mut new_rows = Vec::new();
-        for r in worksheet.rows.iter() {
-            if r.r == row {
-                let mut nr = r.clone();
-                nr.r = target_row;
-                new_rows.push(nr);
-            } else if delta > 0 && r.r > row && r.r <= target_row {
-                let mut nr = r.clone();
-                nr.r -= 1;
-                new_rows.push(nr);
-            } else if delta < 0 && r.r < row && r.r >= target_row {
-                let mut nr = r.clone();
-                nr.r += 1;
-                new_rows.push(nr);
-            } else {
-                new_rows.push(r.clone());
-            }
-        }
-        worksheet.rows = new_rows;
-
-        // Update all formulas in the workbook
-        self.displace_cells(&(DisplaceData::RowMove { sheet, row, delta }))?;
 
         Ok(())
     }

base/src/arithmetic.rs

@@ -1,158 +0,0 @@
-use crate::{
-    calc_result::CalcResult,
-    cast::NumberOrArray,
-    expressions::{
-        parser::{ArrayNode, Node},
-        token::Error,
-        types::CellReferenceIndex,
-    },
-    model::Model,
-};
-
-/// Unify how we map booleans/strings to f64
-fn to_f64(value: &ArrayNode) -> Result<f64, Error> {
-    match value {
-        ArrayNode::Number(f) => Ok(*f),
-        ArrayNode::Boolean(b) => Ok(if *b { 1.0 } else { 0.0 }),
-        ArrayNode::String(s) => match s.parse::<f64>() {
-            Ok(f) => Ok(f),
-            Err(_) => Err(Error::VALUE),
-        },
-        ArrayNode::Error(err) => Err(err.clone()),
-    }
-}
-
-impl Model {
-    /// Applies `op` element‐wise for arrays/numbers.
-    pub(crate) fn handle_arithmetic(
-        &mut self,
-        left: &Node,
-        right: &Node,
-        cell: CellReferenceIndex,
-        op: &dyn Fn(f64, f64) -> Result<f64, Error>,
-    ) -> CalcResult {
-        let l = match self.get_number_or_array(left, cell) {
-            Ok(f) => f,
-            Err(s) => {
-                return s;
-            }
-        };
-        let r = match self.get_number_or_array(right, cell) {
-            Ok(f) => f,
-            Err(s) => {
-                return s;
-            }
-        };
-        match (l, r) {
-            // -----------------------------------------------------
-            // Case 1: Both are numbers
-            // -----------------------------------------------------
-            (NumberOrArray::Number(f1), NumberOrArray::Number(f2)) => match op(f1, f2) {
-                Ok(x) => CalcResult::Number(x),
-                Err(Error::DIV) => CalcResult::Error {
-                    error: Error::DIV,
-                    origin: cell,
-                    message: "Divide by 0".to_string(),
-                },
-                Err(Error::VALUE) => CalcResult::Error {
-                    error: Error::VALUE,
-                    origin: cell,
-                    message: "Invalid number".to_string(),
-                },
-                Err(e) => CalcResult::Error {
-                    error: e,
-                    origin: cell,
-                    message: "Unknown error".to_string(),
-                },
-            },
-
-            // -----------------------------------------------------
-            // Case 2: left is Number, right is Array
-            // -----------------------------------------------------
-            (NumberOrArray::Number(f1), NumberOrArray::Array(a2)) => {
-                let mut array = Vec::new();
-                for row in a2 {
-                    let mut data_row = Vec::new();
-                    for node in row {
-                        match to_f64(&node) {
-                            Ok(f2) => match op(f1, f2) {
-                                Ok(x) => data_row.push(ArrayNode::Number(x)),
-                                Err(Error::DIV) => data_row.push(ArrayNode::Error(Error::DIV)),
-                                Err(Error::VALUE) => data_row.push(ArrayNode::Error(Error::VALUE)),
-                                Err(e) => data_row.push(ArrayNode::Error(e)),
-                            },
-                            Err(err) => data_row.push(ArrayNode::Error(err)),
-                        }
-                    }
-                    array.push(data_row);
-                }
-                CalcResult::Array(array)
-            }
-
-            // -----------------------------------------------------
-            // Case 3: left is Array, right is Number
-            // -----------------------------------------------------
-            (NumberOrArray::Array(a1), NumberOrArray::Number(f2)) => {
-                let mut array = Vec::new();
-                for row in a1 {
-                    let mut data_row = Vec::new();
-                    for node in row {
-                        match to_f64(&node) {
-                            Ok(f1) => match op(f1, f2) {
-                                Ok(x) => data_row.push(ArrayNode::Number(x)),
-                                Err(Error::DIV) => data_row.push(ArrayNode::Error(Error::DIV)),
-                                Err(Error::VALUE) => data_row.push(ArrayNode::Error(Error::VALUE)),
-                                Err(e) => data_row.push(ArrayNode::Error(e)),
-                            },
-                            Err(err) => data_row.push(ArrayNode::Error(err)),
-                        }
-                    }
-                    array.push(data_row);
-                }
-                CalcResult::Array(array)
-            }
-
-            // -----------------------------------------------------
-            // Case 4: Both are arrays
-            // -----------------------------------------------------
-            (NumberOrArray::Array(a1), NumberOrArray::Array(a2)) => {
-                let n1 = a1.len();
-                let m1 = a1.first().map(|r| r.len()).unwrap_or(0);
-                let n2 = a2.len();
-                let m2 = a2.first().map(|r| r.len()).unwrap_or(0);
-                let n = n1.max(n2);
-                let m = m1.max(m2);
-
-                let mut array = Vec::new();
-                for i in 0..n {
-                    let row1 = a1.get(i);
-                    let row2 = a2.get(i);
-
-                    let mut data_row = Vec::new();
-                    for j in 0..m {
-                        let val1 = row1.and_then(|r| r.get(j));
-                        let val2 = row2.and_then(|r| r.get(j));
-
-                        match (val1, val2) {
-                            (Some(v1), Some(v2)) => match (to_f64(v1), to_f64(v2)) {
-                                (Ok(f1), Ok(f2)) => match op(f1, f2) {
-                                    Ok(x) => data_row.push(ArrayNode::Number(x)),
-                                    Err(Error::DIV) => data_row.push(ArrayNode::Error(Error::DIV)),
-                                    Err(Error::VALUE) => {
-                                        data_row.push(ArrayNode::Error(Error::VALUE))
-                                    }
-                                    Err(e) => data_row.push(ArrayNode::Error(e)),
-                                },
-                                (Err(e), _) | (_, Err(e)) => data_row.push(ArrayNode::Error(e)),
-                            },
-                            // Mismatched dimensions => #VALUE!
-                            _ => data_row.push(ArrayNode::Error(Error::VALUE)),
-                        }
-                    }
-                    array.push(data_row);
-                }
-                CalcResult::Array(array)
-            }
-        }
-    }
-}

base/src/calc_result.rs

@@ -1,6 +1,6 @@
 use std::cmp::Ordering;
 
-use crate::expressions::{parser::ArrayNode, token::Error, types::CellReferenceIndex};
+use crate::expressions::{token::Error, types::CellReferenceIndex};
 
 #[derive(Clone)]
 pub struct Range {
@@ -24,7 +24,6 @@ pub(crate) enum CalcResult {
     },
     EmptyCell,
     EmptyArg,
-    Array(Vec<Vec<ArrayNode>>),
 }
 
 impl CalcResult {

base/src/cast.rs

@@ -1,85 +1,11 @@
 use crate::{
     calc_result::{CalcResult, Range},
-    expressions::{
+    expressions::{parser::Node, token::Error, types::CellReferenceIndex},
-        parser::{ArrayNode, Node},
+    implicit_intersection::implicit_intersection,
-        token::Error,
-        types::CellReferenceIndex,
-    },
     model::Model,
 };
 
-pub(crate) enum NumberOrArray {
-    Number(f64),
-    Array(Vec<Vec<ArrayNode>>),
-}
-
 impl Model {
-    pub(crate) fn get_number_or_array(
-        &mut self,
-        node: &Node,
-        cell: CellReferenceIndex,
-    ) -> Result<NumberOrArray, CalcResult> {
-        match self.evaluate_node_in_context(node, cell) {
-            CalcResult::Number(f) => Ok(NumberOrArray::Number(f)),
-            CalcResult::String(s) => match s.parse::<f64>() {
-                Ok(f) => Ok(NumberOrArray::Number(f)),
-                _ => Err(CalcResult::new_error(
-                    Error::VALUE,
-                    cell,
-                    "Expecting number".to_string(),
-                )),
-            },
-            CalcResult::Boolean(f) => {
-                if f {
-                    Ok(NumberOrArray::Number(1.0))
-                } else {
-                    Ok(NumberOrArray::Number(0.0))
-                }
-            }
-            CalcResult::EmptyCell | CalcResult::EmptyArg => Ok(NumberOrArray::Number(0.0)),
-            CalcResult::Range { left, right } => {
-                let sheet = left.sheet;
-                if sheet != right.sheet {
-                    return Err(CalcResult::Error {
-                        error: Error::ERROR,
-                        origin: cell,
-                        message: "3D ranges are not allowed".to_string(),
-                    });
-                }
-                // we need to convert the range into an array
-                let mut array = Vec::new();
-                for row in left.row..=right.row {
-                    let mut row_data = Vec::new();
-                    for column in left.column..=right.column {
-                        let value =
-                            match self.evaluate_cell(CellReferenceIndex { sheet, column, row }) {
-                                CalcResult::String(s) => ArrayNode::String(s),
-                                CalcResult::Number(f) => ArrayNode::Number(f),
-                                CalcResult::Boolean(b) => ArrayNode::Boolean(b),
-                                CalcResult::Error { error, .. } => ArrayNode::Error(error),
-                                CalcResult::Range { .. } => {
-                                    // if we do things right this can never happen.
-                                    // the evaluation of a cell should never return a range
-                                    ArrayNode::Number(0.0)
-                                }
-                                CalcResult::EmptyCell => ArrayNode::Number(0.0),
-                                CalcResult::EmptyArg => ArrayNode::Number(0.0),
-                                CalcResult::Array(_) => {
-                                    // if we do things right this can never happen.
-                                    // the evaluation of a cell should never return an array
-                                    ArrayNode::Number(0.0)
-                                }
-                            };
-                        row_data.push(value);
-                    }
-                    array.push(row_data);
-                }
-                Ok(NumberOrArray::Array(array))
-            }
-            CalcResult::Array(s) => Ok(NumberOrArray::Array(s)),
-            error @ CalcResult::Error { .. } => Err(error),
-        }
-    }
     pub(crate) fn get_number(
         &mut self,
         node: &Node,
@@ -113,18 +39,21 @@ impl Model {
             }
             CalcResult::EmptyCell | CalcResult::EmptyArg => Ok(0.0),
             error @ CalcResult::Error { .. } => Err(error),
-            CalcResult::Range { .. } => Err(CalcResult::Error {
+            CalcResult::Range { left, right } => {
-                error: Error::NIMPL,
+                match implicit_intersection(&cell, &Range { left, right }) {
+                    Some(cell_reference) => {
+                        let result = self.evaluate_cell(cell_reference);
+                        self.cast_to_number(result, cell_reference)
+                    }
+                    None => Err(CalcResult::Error {
+                        error: Error::VALUE,
                         origin: cell,
-                message: "Arrays not supported yet".to_string(),
+                        message: "Invalid reference (number)".to_string(),
-            }),
-            CalcResult::Array(_) => Err(CalcResult::Error {
-                error: Error::NIMPL,
-                origin: cell,
-                message: "Arrays not supported yet".to_string(),
                     }),
                 }
             }
+        }
+    }
 
     pub(crate) fn get_number_no_bools(
         &mut self,
@@ -159,7 +88,7 @@ impl Model {
         // FIXME: I think when casting a number we should convert it to_precision(x, 15)
         // See function Exact
         match result {
-            CalcResult::Number(f) => Ok(format!("{f}")),
+            CalcResult::Number(f) => Ok(format!("{}", f)),
             CalcResult::String(s) => Ok(s),
             CalcResult::Boolean(f) => {
                 if f {
@@ -170,18 +99,21 @@ impl Model {
             }
             CalcResult::EmptyCell | CalcResult::EmptyArg => Ok("".to_string()),
             error @ CalcResult::Error { .. } => Err(error),
-            CalcResult::Range { .. } => Err(CalcResult::Error {
+            CalcResult::Range { left, right } => {
-                error: Error::NIMPL,
+                match implicit_intersection(&cell, &Range { left, right }) {
+                    Some(cell_reference) => {
+                        let result = self.evaluate_cell(cell_reference);
+                        self.cast_to_string(result, cell_reference)
+                    }
+                    None => Err(CalcResult::Error {
+                        error: Error::VALUE,
                         origin: cell,
-                message: "Arrays not supported yet".to_string(),
+                        message: "Invalid reference (string)".to_string(),
-            }),
-            CalcResult::Array(_) => Err(CalcResult::Error {
-                error: Error::NIMPL,
-                origin: cell,
-                message: "Arrays not supported yet".to_string(),
                     }),
                 }
             }
+        }
+    }
 
     pub(crate) fn get_boolean(
         &mut self,
@@ -219,18 +151,21 @@ impl Model {
             CalcResult::Boolean(b) => Ok(b),
             CalcResult::EmptyCell | CalcResult::EmptyArg => Ok(false),
             error @ CalcResult::Error { .. } => Err(error),
-            CalcResult::Range { .. } => Err(CalcResult::Error {
+            CalcResult::Range { left, right } => {
-                error: Error::NIMPL,
+                match implicit_intersection(&cell, &Range { left, right }) {
+                    Some(cell_reference) => {
+                        let result = self.evaluate_cell(cell_reference);
+                        self.cast_to_bool(result, cell_reference)
+                    }
+                    None => Err(CalcResult::Error {
+                        error: Error::VALUE,
                         origin: cell,
-                message: "Arrays not supported yet".to_string(),
+                        message: "Invalid reference (bool)".to_string(),
-            }),
-            CalcResult::Array(_) => Err(CalcResult::Error {
-                error: Error::NIMPL,
-                origin: cell,
-                message: "Arrays not supported yet".to_string(),
                     }),
                 }
             }
+        }
+    }
 
     // tries to return a reference. That is either a reference or a formula that evaluates to a range/reference
     pub(crate) fn get_reference(

base/src/diffs.rs

@@ -0,0 +1,138 @@
+use crate::{
+    expressions::{
+        parser::{
+            move_formula::ref_is_in_area,
+            stringify::{to_string, to_string_displaced, DisplaceData},
+            walk::forward_references,
+        },
+        types::{Area, CellReferenceIndex, CellReferenceRC},
+    },
+    model::Model,
+};
+use serde::{Deserialize, Serialize};
+
+#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, Eq)]
+#[serde(untagged, deny_unknown_fields)]
+pub enum CellValue {
+    Value(String),
+    None,
+}
+
+#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, Eq)]
+pub struct SetCellValue {
+    cell: CellReferenceIndex,
+    new_value: CellValue,
+    old_value: CellValue,
+}
+
+impl Model {
+    #[allow(clippy::expect_used)]
+    pub(crate) fn shift_cell_formula(
+        &mut self,
+        sheet: u32,
+        row: i32,
+        column: i32,
+        displace_data: &DisplaceData,
+    ) {
+        if let Some(f) = self
+            .workbook
+            .worksheet(sheet)
+            .expect("Worksheet must exist")
+            .cell(row, column)
+            .expect("Cell must exist")
+            .get_formula()
+        {
+            let node = &self.parsed_formulas[sheet as usize][f as usize].clone();
+            let cell_reference = CellReferenceRC {
+                sheet: self.workbook.worksheets[sheet as usize].get_name(),
+                row,
+                column,
+            };
+            // FIXME: This is not a very performant way if the formula has changed :S.
+            let formula = to_string(node, &cell_reference);
+            let formula_displaced = to_string_displaced(node, &cell_reference, displace_data);
+            if formula != formula_displaced {
+                self.update_cell_with_formula(sheet, row, column, format!("={formula_displaced}"))
+                    .expect("Failed to shift cell formula");
+            }
+        }
+    }
+
+    #[allow(clippy::expect_used)]
+    pub fn forward_references(
+        &mut self,
+        source_area: &Area,
+        target: &CellReferenceIndex,
+    ) -> Result<Vec<SetCellValue>, String> {
+        let mut diff_list: Vec<SetCellValue> = Vec::new();
+        let target_area = &Area {
+            sheet: target.sheet,
+            row: target.row,
+            column: target.column,
+            width: source_area.width,
+            height: source_area.height,
+        };
+        // Walk over every formula
+        let cells = self.get_all_cells();
+        for cell in cells {
+            if let Some(f) = self
+                .workbook
+                .worksheet(cell.index)
+                .expect("Worksheet must exist")
+                .cell(cell.row, cell.column)
+                .expect("Cell must exist")
+                .get_formula()
+            {
+                let sheet = cell.index;
+                let row = cell.row;
+                let column = cell.column;
+
+                // If cell is in the source or target area, skip
+                if ref_is_in_area(sheet, row, column, source_area)
+                    || ref_is_in_area(sheet, row, column, target_area)
+                {
+                    continue;
+                }
+
+                // Get the formula
+                // Get a copy of the AST
+                let node = &mut self.parsed_formulas[sheet as usize][f as usize].clone();
+                let cell_reference = CellReferenceRC {
+                    sheet: self.workbook.worksheets[sheet as usize].get_name(),
+                    column: cell.column,
+                    row: cell.row,
+                };
+                let context = CellReferenceIndex { sheet, column, row };
+                let formula = to_string(node, &cell_reference);
+                let target_sheet_name = &self.workbook.worksheets[target.sheet as usize].name;
+                forward_references(
+                    node,
+                    &context,
+                    source_area,
+                    target.sheet,
+                    target_sheet_name,
+                    target.row,
+                    target.column,
+                );
+
+                // If the string representation of the formula has changed update the cell
+                let updated_formula = to_string(node, &cell_reference);
+                if formula != updated_formula {
+                    self.update_cell_with_formula(
+                        sheet,
+                        row,
+                        column,
+                        format!("={updated_formula}"),
+                    )?;
+                    // Update the diff list
+                    diff_list.push(SetCellValue {
+                        cell: CellReferenceIndex { sheet, column, row },
+                        new_value: CellValue::Value(format!("={}", updated_formula)),
+                        old_value: CellValue::Value(format!("={}", formula)),
+                    });
+                }
+            }
+        }
+        Ok(diff_list)
+    }
+}

base/src/expressions/lexer/mod.rs

@@ -142,7 +142,7 @@ impl Lexer {
     pub fn expect(&mut self, tk: TokenType) -> Result<()> {
         let nt = self.next_token();
         if mem::discriminant(&nt) != mem::discriminant(&tk) {
-            return Err(self.set_error(&format!("Error, expected {tk:?}"), self.position));
+            return Err(self.set_error(&format!("Error, expected {:?}", tk), self.position));
         }
         Ok(())
     }
@@ -187,7 +187,6 @@ impl Lexer {
                     ']' => TokenType::RightBracket,
                     ':' => TokenType::Colon,
                     ';' => TokenType::Semicolon,
-                    '@' => TokenType::At,
                     ',' => {
                         if self.locale.numbers.symbols.decimal == "," {
                             match self.consume_number(',') {
@@ -314,9 +313,6 @@ impl Lexer {
                             } else if name_upper == self.language.booleans.r#false {
                                 return TokenType::Boolean(false);
                             }
-                            if self.peek_char() == Some('(') {
-                                return TokenType::Ident(name);
-                            }
                             if self.mode == LexerMode::A1 {
                                 let parsed_reference = utils::parse_reference_a1(&name_upper);
                                 if parsed_reference.is_some()
@@ -514,7 +510,7 @@ impl Lexer {
         self.position = position;
         chars.parse::<i32>().map_err(|_| LexerError {
             position,
-            message: format!("Failed to parse to int: {chars}"),
+            message: format!("Failed to parse to int: {}", chars),
         })
     }
 
@@ -575,7 +571,9 @@ impl Lexer {
         }
         self.position = position;
         match chars.parse::<f64>() {
-            Err(_) => Err(self.set_error(&format!("Failed to parse to double: {chars}"), position)),
+            Err(_) => {
+                Err(self.set_error(&format!("Failed to parse to double: {}", chars), position))
+            }
             Ok(v) => Ok(v),
         }
     }

base/src/expressions/lexer/ranges.rs

@@ -148,16 +148,15 @@ impl Lexer {
                     let row_left = match row_left.parse::<i32>() {
                         Ok(n) => n,
                         Err(_) => {
-                            return Err(
+                            return Err(self
-                                self.set_error(&format!("Failed parsing row {row_left}"), position)
+                                .set_error(&format!("Failed parsing row {}", row_left), position))
-                            )
                         }
                     };
                     let row_right = match row_right.parse::<i32>() {
                         Ok(n) => n,
                         Err(_) => {
                             return Err(self
-                                .set_error(&format!("Failed parsing row {row_right}"), position))
+                                .set_error(&format!("Failed parsing row {}", row_right), position))
                         }
                     };
                     if row_left > LAST_ROW {

base/src/expressions/lexer/structured_references.rs

@@ -23,19 +23,19 @@ impl Lexer {
             // TODO(TD): There are better ways of doing this :)
             let rest_of_formula: String = self.chars[self.position..self.len].iter().collect();
             let specifier = if rest_of_formula.starts_with("#This Row]") {
-                self.position += "#This Row]".len();
+                self.position += "#This Row]".bytes().len();
                 TableSpecifier::ThisRow
             } else if rest_of_formula.starts_with("#All]") {
-                self.position += "#All]".len();
+                self.position += "#All]".bytes().len();
                 TableSpecifier::All
             } else if rest_of_formula.starts_with("#Data]") {
-                self.position += "#Data]".len();
+                self.position += "#Data]".bytes().len();
                 TableSpecifier::Data
             } else if rest_of_formula.starts_with("#Headers]") {
-                self.position += "#Headers]".len();
+                self.position += "#Headers]".bytes().len();
                 TableSpecifier::Headers
             } else if rest_of_formula.starts_with("#Totals]") {
-                self.position += "#Totals]".len();
+                self.position += "#Totals]".bytes().len();
                 TableSpecifier::Totals
             } else {
                 return Err(LexerError {

base/src/expressions/lexer/test/mod.rs

@@ -1,5 +1,4 @@
 mod test_common;
-mod test_implicit_intersection;
 mod test_language;
 mod test_locale;
 mod test_ranges;

base/src/expressions/lexer/test/test_common.rs

@@ -1,6 +1,5 @@
 #![allow(clippy::unwrap_used)]
 
-use crate::expressions::utils::column_to_number;
 use crate::language::get_language;
 use crate::locale::get_locale;
 
@@ -686,29 +685,3 @@ fn test_comparisons() {
     assert_eq!(lx.next_token(), Number(7.0));
     assert_eq!(lx.next_token(), EOF);
 }
-
-#[test]
-fn test_log10_is_cell_reference() {
-    let mut lx = new_lexer("LOG10", true);
-    assert_eq!(
-        lx.next_token(),
-        Reference {
-            sheet: None,
-            column: column_to_number("LOG").unwrap(),
-            row: 10,
-            absolute_column: false,
-            absolute_row: false,
-        }
-    );
-    assert_eq!(lx.next_token(), EOF);
-}
-
-#[test]
-fn test_log10_is_function() {
-    let mut lx = new_lexer("LOG10(100)", true);
-    assert_eq!(lx.next_token(), Ident("LOG10".to_string()));
-    assert_eq!(lx.next_token(), LeftParenthesis);
-    assert_eq!(lx.next_token(), Number(100.0));
-    assert_eq!(lx.next_token(), RightParenthesis);
-    assert_eq!(lx.next_token(), EOF);
-}

base/src/expressions/lexer/test/test_implicit_intersection.rs

@@ -1,25 +0,0 @@
-#![allow(clippy::unwrap_used)]
-
-use crate::expressions::{
-    lexer::{Lexer, LexerMode},
-    token::TokenType::*,
-};
-use crate::language::get_language;
-use crate::locale::get_locale;
-
-fn new_lexer(formula: &str) -> Lexer {
-    let locale = get_locale("en").unwrap();
-    let language = get_language("en").unwrap();
-    Lexer::new(formula, LexerMode::A1, locale, language)
-}
-
-#[test]
-fn sum_implicit_intersection() {
-    let mut lx = new_lexer("sum(@A1:A3)");
-    assert_eq!(lx.next_token(), Ident("sum".to_string()));
-    assert_eq!(lx.next_token(), LeftParenthesis);
-    assert_eq!(lx.next_token(), At);
-    assert!(matches!(lx.next_token(), Range { .. }));
-    assert_eq!(lx.next_token(), RightParenthesis);
-    assert_eq!(lx.next_token(), EOF);
-}

base/src/expressions/parser/mod.rs

@@ -1,5 +1,5 @@
 /*!
-# GRAMMAR
+# GRAMAR
 
 <pre class="rust">
 opComp   => '=' | '<' | '>' | '<=' } '>=' | '<>'
@@ -12,8 +12,7 @@ term    => factor (opFactor factor)*
 factor  => prod (opProd prod)*
 prod    => power ('^' power)*
 power   => (unaryOp)* range '%'*
-range   => implicit (':' primary)?
+range   => primary (':' primary)?
-implicit=> '@' primary | primary
 primary => '(' expr ')'
         => number
         => function '(' f_args ')'
@@ -46,8 +45,8 @@ use super::utils::number_to_column;
 use token::OpCompare;
 
 pub mod move_formula;
-pub mod static_analysis;
 pub mod stringify;
+pub mod walk;
 
 #[cfg(test)]
 mod tests;
@@ -82,9 +81,6 @@ fn get_table_column_by_name(table_column_name: &str, table: &Table) -> Option<i3
     None
 }
 
-// DefinedNameS is a tuple with the name of the defined name, the index of the sheet and the formula
-pub type DefinedNameS = (String, Option<u32>, String);
-
 pub(crate) struct Reference<'a> {
     sheet_name: &'a Option<String>,
     sheet_index: u32,
@@ -94,14 +90,6 @@ pub(crate) struct Reference<'a> {
     column: i32,
 }
 
-#[derive(PartialEq, Clone, Debug)]
-pub enum ArrayNode {
-    Boolean(bool),
-    Number(f64),
-    String(String),
-    Error(token::Error),
-}
-
 #[derive(PartialEq, Clone, Debug)]
 pub enum Node {
     BooleanKind(bool),
@@ -175,14 +163,10 @@ pub enum Node {
         name: String,
         args: Vec<Node>,
     },
-    ArrayKind(Vec<Vec<ArrayNode>>),
+    ArrayKind(Vec<Node>),
-    DefinedNameKind(DefinedNameS),
+    DefinedNameKind((String, Option<u32>)),
     TableNameKind(String),
     WrongVariableKind(String),
-    ImplicitIntersection {
-        automatic: bool,
-        child: Box<Node>,
-    },
     CompareKind {
         kind: OpCompare,
         left: Box<Node>,
@@ -205,7 +189,7 @@ pub enum Node {
 pub struct Parser {
     lexer: lexer::Lexer,
     worksheets: Vec<String>,
-    defined_names: Vec<DefinedNameS>,
+    defined_names: Vec<(String, Option<u32>)>,
     context: CellReferenceRC,
     tables: HashMap<String, Table>,
 }
@@ -213,7 +197,7 @@ pub struct Parser {
 impl Parser {
     pub fn new(
         worksheets: Vec<String>,
-        defined_names: Vec<DefinedNameS>,
+        defined_names: Vec<(String, Option<u32>)>,
         tables: HashMap<String, Table>,
     ) -> Parser {
         let lexer = lexer::Lexer::new(
@@ -244,7 +228,7 @@ impl Parser {
     pub fn set_worksheets_and_names(
         &mut self,
         worksheets: Vec<String>,
-        defined_names: Vec<DefinedNameS>,
+        defined_names: Vec<(String, Option<u32>)>,
     ) {
         self.worksheets = worksheets;
         self.defined_names = defined_names;
@@ -268,17 +252,17 @@ impl Parser {
 
     // Returns:
     //  * None: If there is no defined name by that name
-    //  * Some((Some(index), formula)): If there is a defined name local to that sheet
+    //  * Some(Some(index)): If there is a defined name local to that sheet
     //  * Some(None): If there is a global defined name
-    fn get_defined_name(&self, name: &str, sheet: u32) -> Option<(Option<u32>, String)> {
+    fn get_defined_name(&self, name: &str, sheet: u32) -> Option<Option<u32>> {
-        for (df_name, df_scope, df_formula) in &self.defined_names {
+        for (df_name, df_scope) in &self.defined_names {
             if name.to_lowercase() == df_name.to_lowercase() && df_scope == &Some(sheet) {
-                return Some((*df_scope, df_formula.to_owned()));
+                return Some(*df_scope);
             }
         }
-        for (df_name, df_scope, df_formula) in &self.defined_names {
+        for (df_name, df_scope) in &self.defined_names {
             if name.to_lowercase() == df_name.to_lowercase() && df_scope.is_none() {
-                return Some((None, df_formula.to_owned()));
+                return Some(None);
             }
         }
         None
@@ -427,7 +411,7 @@ impl Parser {
     }
 
     fn parse_range(&mut self) -> Node {
-        let t = self.parse_implicit();
+        let t = self.parse_primary();
         if let Node::ParseErrorKind { .. } = t {
             return t;
         }
@@ -446,65 +430,6 @@ impl Parser {
         t
     }
 
-    fn parse_implicit(&mut self) -> Node {
-        let next_token = self.lexer.peek_token();
-        if next_token == TokenType::At {
-            self.lexer.advance_token();
-            let t = self.parse_primary();
-            if let Node::ParseErrorKind { .. } = t {
-                return t;
-            }
-            return Node::ImplicitIntersection {
-                automatic: false,
-                child: Box::new(t),
-            };
-        }
-        self.parse_primary()
-    }
-
-    fn parse_array_row(&mut self) -> Result<Vec<ArrayNode>, Node> {
-        let mut row = Vec::new();
-        // and array can only have numbers, string or booleans
-        // otherwise it is a syntax error
-        let first_element = match self.parse_expr() {
-            Node::BooleanKind(s) => ArrayNode::Boolean(s),
-            Node::NumberKind(s) => ArrayNode::Number(s),
-            Node::StringKind(s) => ArrayNode::String(s),
-            Node::ErrorKind(kind) => ArrayNode::Error(kind),
-            error @ Node::ParseErrorKind { .. } => return Err(error),
-            _ => {
-                return Err(Node::ParseErrorKind {
-                    formula: self.lexer.get_formula(),
-                    message: "Invalid value in array".to_string(),
-                    position: self.lexer.get_position() as usize,
-                });
-            }
-        };
-        row.push(first_element);
-        let mut next_token = self.lexer.peek_token();
-        // FIXME: this is not respecting the locale
-        while next_token == TokenType::Comma {
-            self.lexer.advance_token();
-            let value = match self.parse_expr() {
-                Node::BooleanKind(s) => ArrayNode::Boolean(s),
-                Node::NumberKind(s) => ArrayNode::Number(s),
-                Node::StringKind(s) => ArrayNode::String(s),
-                Node::ErrorKind(kind) => ArrayNode::Error(kind),
-                error @ Node::ParseErrorKind { .. } => return Err(error),
-                _ => {
-                    return Err(Node::ParseErrorKind {
-                        formula: self.lexer.get_formula(),
-                        message: "Invalid value in array".to_string(),
-                        position: self.lexer.get_position() as usize,
-                    });
-                }
-            };
-            row.push(value);
-            next_token = self.lexer.peek_token();
-        }
-        Ok(row)
-    }
-
     fn parse_primary(&mut self) -> Node {
         let next_token = self.lexer.next_token();
         match next_token {
@@ -526,35 +451,21 @@ impl Parser {
             TokenType::Number(s) => Node::NumberKind(s),
             TokenType::String(s) => Node::StringKind(s),
             TokenType::LeftBrace => {
-                // It's an array. It's a collection of rows all of the same dimension
+                let t = self.parse_expr();
-
+                if let Node::ParseErrorKind { .. } = t {
-                let first_row = match self.parse_array_row() {
+                    return t;
-                    Ok(s) => s,
+                }
-                    Err(error) => return error,
-                };
-                let length = first_row.len();
-
-                let mut matrix = Vec::new();
-                matrix.push(first_row);
-                // FIXME: this is not respecting the locale
                 let mut next_token = self.lexer.peek_token();
+                let mut args: Vec<Node> = vec![t];
                 while next_token == TokenType::Semicolon {
                     self.lexer.advance_token();
-                    let row = match self.parse_array_row() {
+                    let p = self.parse_expr();
-                        Ok(s) => s,
+                    if let Node::ParseErrorKind { .. } = p {
-                        Err(error) => return error,
+                        return p;
-                    };
+                    }
                     next_token = self.lexer.peek_token();
-                    if row.len() != length {
+                    args.push(p);
-                        return Node::ParseErrorKind {
-                            formula: self.lexer.get_formula(),
-                            position: self.lexer.get_position() as usize,
-                            message: "All rows in an array should be the same length".to_string(),
-                        };
                 }
-                    matrix.push(row);
-                }
-
                 if let Err(err) = self.lexer.expect(TokenType::RightBrace) {
                     return Node::ParseErrorKind {
                         formula: self.lexer.get_formula(),
@@ -562,7 +473,7 @@ impl Parser {
                         message: err.message,
                     };
                 }
-                Node::ArrayKind(matrix)
+                Node::ArrayKind(args)
             }
             TokenType::Reference {
                 sheet,
@@ -693,20 +604,6 @@ impl Parser {
                             args,
                         };
                     }
-                    if &name == "_xlfn.SINGLE" {
-                        if args.len() != 1 {
-                            return Node::ParseErrorKind {
-                                formula: self.lexer.get_formula(),
-                                position: self.lexer.get_position() as usize,
-                                message: "Implicit Intersection requires just one argument"
-                                    .to_string(),
-                            };
-                        }
-                        return Node::ImplicitIntersection {
-                            automatic: false,
-                            child: Box::new(args[0].clone()),
-                        };
-                    }
                     return Node::InvalidFunctionKind { name, args };
                 }
                 let context = &self.context;
@@ -717,14 +614,14 @@ impl Parser {
                         return Node::ParseErrorKind {
                             formula: self.lexer.get_formula(),
                             position: 0,
-                            message: format!("sheet not found: {}", context.sheet),
+                            message: "sheet not found".to_string(),
                         };
                     }
                 };
 
                 // Could be a defined name or a table
-                if let Some((scope, formula)) = self.get_defined_name(&name, context_sheet_index) {
+                if let Some(scope) = self.get_defined_name(&name, context_sheet_index) {
-                    return Node::DefinedNameKind((name, scope, formula));
+                    return Node::DefinedNameKind((name, scope));
                 }
                 let name_lower = name.to_lowercase();
                 for table_name in self.tables.keys() {
@@ -809,14 +706,6 @@ impl Parser {
                     message: "Unexpected token: 'POWER'".to_string(),
                 }
             }
-            TokenType::At => {
-                // A primary Node cannot start with an operator
-                Node::ParseErrorKind {
-                    formula: self.lexer.get_formula(),
-                    position: 0,
-                    message: "Unexpected token: '@'".to_string(),
-                }
-            }
             TokenType::RightParenthesis
             | TokenType::RightBracket
             | TokenType::Colon
@@ -828,7 +717,7 @@ impl Parser {
             | TokenType::Percent => Node::ParseErrorKind {
                 formula: self.lexer.get_formula(),
                 position: 0,
-                message: format!("Unexpected token: '{next_token:?}'"),
+                message: format!("Unexpected token: '{:?}'", next_token),
             },
             TokenType::LeftBracket => Node::ParseErrorKind {
                 formula: self.lexer.get_formula(),
@@ -850,7 +739,7 @@ impl Parser {
                         return Node::ParseErrorKind {
                             formula: self.lexer.get_formula(),
                             position: 0,
-                            message: format!("sheet not found: {}", context.sheet),
+                            message: "sheet not found".to_string(),
                         };
                     }
                 };
@@ -878,7 +767,7 @@ impl Parser {
                         return Node::ParseErrorKind {
                             formula: self.lexer.get_formula(),
                             position: 0,
-                            message: format!("table sheet not found: {}", table.sheet_name),
+                            message: "sheet not found".to_string(),
                         };
                     }
                 };

base/src/expressions/parser/move_formula.rs

@@ -1,6 +1,6 @@
 use super::{
     stringify::{stringify_reference, DisplaceData},
-    ArrayNode, Node, Reference,
+    Node, Reference,
 };
 use crate::{
     constants::{LAST_COLUMN, LAST_ROW},
@@ -53,24 +53,15 @@ fn move_function(name: &str, args: &Vec<Node>, move_context: &MoveContext) -> St
             arguments = to_string_moved(el, move_context);
         }
     }
-    format!("{name}({arguments})")
+    format!("{}({})", name, arguments)
-}
-
-pub(crate) fn to_string_array_node(node: &ArrayNode) -> String {
-    match node {
-        ArrayNode::Boolean(value) => format!("{value}").to_ascii_uppercase(),
-        ArrayNode::Number(number) => to_excel_precision_str(*number),
-        ArrayNode::String(value) => format!("\"{value}\""),
-        ArrayNode::Error(kind) => format!("{kind}"),
-    }
 }
 
 fn to_string_moved(node: &Node, move_context: &MoveContext) -> String {
     use self::Node::*;
     match node {
-        BooleanKind(value) => format!("{value}").to_ascii_uppercase(),
+        BooleanKind(value) => format!("{}", value).to_ascii_uppercase(),
         NumberKind(number) => to_excel_precision_str(*number),
-        StringKind(value) => format!("\"{value}\""),
+        StringKind(value) => format!("\"{}\"", value),
         ReferenceKind {
             sheet_name,
             sheet_index,
@@ -241,7 +232,7 @@ fn to_string_moved(node: &Node, move_context: &MoveContext) -> String {
                 full_row,
                 full_column,
             );
-            format!("{s1}:{s2}")
+            format!("{}:{}", s1, s2)
         }
         WrongReferenceKind {
             sheet_name,
@@ -325,7 +316,7 @@ fn to_string_moved(node: &Node, move_context: &MoveContext) -> String {
                 full_row,
                 full_column,
             );
-            format!("{s1}:{s2}")
+            format!("{}:{}", s1, s2)
         }
         OpRangeKind { left, right } => format!(
             "{}:{}",
@@ -358,7 +349,7 @@ fn to_string_moved(node: &Node, move_context: &MoveContext) -> String {
                 }
                 _ => to_string_moved(right, move_context),
             };
-            format!("{x}{kind}{y}")
+            format!("{}{}{}", x, kind, y)
         }
         OpPowerKind { left, right } => format!(
             "{}^{}",
@@ -371,41 +362,20 @@ fn to_string_moved(node: &Node, move_context: &MoveContext) -> String {
             move_function(name, args, move_context)
         }
         ArrayKind(args) => {
-            let mut first_row = true;
+            // This code is a placeholder. Arrays are not yet implemented
-            let mut matrix_string = String::new();
+            let mut first = true;
-
+            let mut arguments = "".to_string();
-            // Each element in `args` is assumed to be one "row" (itself a `Vec<T>`).
+            for el in args {
-            for row in args {
+                if !first {
-                if !first_row {
+                    arguments = format!("{},{}", arguments, to_string_moved(el, move_context));
-                    matrix_string.push(',');
                 } else {
-                    first_row = false;
+                    first = false;
+                    arguments = to_string_moved(el, move_context);
                 }
-
-                // Build the string for the current row
-                let mut first_col = true;
-                let mut row_string = String::new();
-                for el in row {
-                    if !first_col {
-                        row_string.push(',');
-                    } else {
-                        first_col = false;
             }
-
+            format!("{{{}}}", arguments)
-                    // Reuse your existing element-stringification function
-                    row_string.push_str(&to_string_array_node(el));
         }
-
+        DefinedNameKind((name, _)) => name.to_string(),
-                // Enclose the row in braces
-                matrix_string.push('{');
-                matrix_string.push_str(&row_string);
-                matrix_string.push('}');
-            }
-
-            // Enclose the whole matrix in braces
-            format!("{{{matrix_string}}}")
-        }
-        DefinedNameKind((name, ..)) => name.to_string(),
         TableNameKind(name) => name.to_string(),
         WrongVariableKind(name) => name.to_string(),
         CompareKind { kind, left, right } => format!(
@@ -418,18 +388,12 @@ fn to_string_moved(node: &Node, move_context: &MoveContext) -> String {
             OpUnary::Minus => format!("-{}", to_string_moved(right, move_context)),
             OpUnary::Percentage => format!("{}%", to_string_moved(right, move_context)),
         },
-        ErrorKind(kind) => format!("{kind}"),
+        ErrorKind(kind) => format!("{}", kind),
         ParseErrorKind {
             formula,
             message: _,
             position: _,
         } => formula.to_string(),
         EmptyArgKind => "".to_string(),
-        ImplicitIntersection {
-            automatic: _,
-            child,
-        } => {
-            format!("@{}", to_string_moved(child, move_context))
-        }
     }
 }

base/src/expressions/parser/stringify.rs

@@ -1,8 +1,6 @@
 use super::{super::utils::quote_name, Node, Reference};
 use crate::constants::{LAST_COLUMN, LAST_ROW};
-use crate::expressions::parser::move_formula::to_string_array_node;
+use crate::expressions::token::OpUnary;
-use crate::expressions::parser::static_analysis::add_implicit_intersection;
-use crate::expressions::token::{OpSum, OpUnary};
 use crate::{expressions::types::CellReferenceRC, number_format::to_excel_precision_str};
 
 pub enum DisplaceData {
@@ -28,11 +26,6 @@ pub enum DisplaceData {
         column: i32,
         delta: i32,
     },
-    RowMove {
-        sheet: u32,
-        row: i32,
-        delta: i32,
-    },
     ColumnMove {
         sheet: u32,
         column: i32,
@@ -41,21 +34,10 @@ pub enum DisplaceData {
     None,
 }
 
-/// This is the internal mode in IronCalc
 pub fn to_rc_format(node: &Node) -> String {
     stringify(node, None, &DisplaceData::None, false)
 }
 
-/// This is the mode used to display the formula in the UI
-pub fn to_string(node: &Node, context: &CellReferenceRC) -> String {
-    stringify(node, Some(context), &DisplaceData::None, false)
-}
-
-/// This is the mode used to export the formula to Excel
-pub fn to_excel_string(node: &Node, context: &CellReferenceRC) -> String {
-    stringify(node, Some(context), &DisplaceData::None, true)
-}
-
 pub fn to_string_displaced(
     node: &Node,
     context: &CellReferenceRC,
@@ -64,10 +46,18 @@ pub fn to_string_displaced(
     stringify(node, Some(context), displace_data, false)
 }
 
+pub fn to_string(node: &Node, context: &CellReferenceRC) -> String {
+    stringify(node, Some(context), &DisplaceData::None, false)
+}
+
+pub fn to_excel_string(node: &Node, context: &CellReferenceRC) -> String {
+    stringify(node, Some(context), &DisplaceData::None, true)
+}
+
 /// Converts a local reference to a string applying some displacement if needed.
 /// It uses A1 style if context is not None. If context is None it uses R1C1 style
 /// If full_row is true then the row details will be omitted in the A1 case
-/// If full_column is true then column details will be omitted.
+/// If full_colum is true then column details will be omitted.
 pub(crate) fn stringify_reference(
     context: Option<&CellReferenceRC>,
     displace_data: &DisplaceData,
@@ -164,29 +154,6 @@ pub(crate) fn stringify_reference(
                         }
                     }
                 }
-                DisplaceData::RowMove {
-                    sheet,
-                    row: move_row,
-                    delta,
-                } => {
-                    if sheet_index == *sheet {
-                        if row == *move_row {
-                            row += *delta;
-                        } else if *delta > 0 {
-                            // Moving the row downwards
-                            if row > *move_row && row <= *move_row + *delta {
-                                // Intermediate rows move up by one position
-                                row -= 1;
-                            }
-                        } else if *delta < 0 {
-                            // Moving the row upwards
-                            if row < *move_row && row >= *move_row + *delta {
-                                // Intermediate rows move down by one position
-                                row += 1;
-                            }
-                        }
-                    }
-                }
                 DisplaceData::ColumnMove {
                     sheet,
                     column: move_column,
@@ -195,18 +162,14 @@ pub(crate) fn stringify_reference(
                     if sheet_index == *sheet {
                         if column == *move_column {
                             column += *delta;
-                        } else if *delta > 0 {
+                        } else if (*delta > 0
-                            // Moving the column to the right
+                            && column > *move_column
-                            if column > *move_column && column <= *move_column + *delta {
+                            && column <= *move_column + *delta)
-                                // Intermediate columns move left by one position
+                            || (*delta < 0
-                                column -= 1;
+                                && column < *move_column
-                            }
+                                && column >= *move_column + *delta)
-                        } else if *delta < 0 {
+                        {
-                            // Moving the column to the left
+                            column -= *delta;
-                            if column < *move_column && column >= *move_column + *delta {
-                                // Intermediate columns move right by one position
-                                column += 1;
-                            }
                         }
                     }
                 }
@@ -216,16 +179,16 @@ pub(crate) fn stringify_reference(
                 return "#REF!".to_string();
             }
             let mut row_abs = if absolute_row {
-                format!("${row}")
+                format!("${}", row)
             } else {
-                format!("{row}")
+                format!("{}", row)
             };
             let column = match crate::expressions::utils::number_to_column(column) {
                 Some(s) => s,
                 None => return "#REF!".to_string(),
             };
             let mut col_abs = if absolute_column {
-                format!("${column}")
+                format!("${}", column)
             } else {
                 column
             };
@@ -240,27 +203,27 @@ pub(crate) fn stringify_reference(
                     format!("{}!{}{}", quote_name(name), col_abs, row_abs)
                 }
                 None => {
-                    format!("{col_abs}{row_abs}")
+                    format!("{}{}", col_abs, row_abs)
                 }
             }
         }
         None => {
             let row_abs = if absolute_row {
-                format!("R{row}")
+                format!("R{}", row)
             } else {
-                format!("R[{row}]")
+                format!("R[{}]", row)
             };
             let col_abs = if absolute_column {
-                format!("C{column}")
+                format!("C{}", column)
             } else {
-                format!("C[{column}]")
+                format!("C[{}]", column)
             };
             match &sheet_name {
                 Some(name) => {
                     format!("{}!{}{}", quote_name(name), row_abs, col_abs)
                 }
                 None => {
-                    format!("{row_abs}{col_abs}")
+                    format!("{}{}", row_abs, col_abs)
                 }
             }
         }
@@ -272,7 +235,7 @@ fn format_function(
     args: &Vec<Node>,
     context: Option<&CellReferenceRC>,
     displace_data: &DisplaceData,
-    export_to_excel: bool,
+    use_original_name: bool,
 ) -> String {
     let mut first = true;
     let mut arguments = "".to_string();
@@ -281,52 +244,27 @@ fn format_function(
             arguments = format!(
                 "{},{}",
                 arguments,
-                stringify(el, context, displace_data, export_to_excel)
+                stringify(el, context, displace_data, use_original_name)
             );
         } else {
             first = false;
-            arguments = stringify(el, context, displace_data, export_to_excel);
+            arguments = stringify(el, context, displace_data, use_original_name);
         }
     }
-    format!("{name}({arguments})")
+    format!("{}({})", name, arguments)
 }
 
-// There is just one representation in the AST (Abstract Syntax Tree) of a formula.
-// But three different ways to convert it to a string.
-//
-// To stringify a formula we need a "context", that is in which cell are we doing the "stringifying"
-//
-// But there are three ways to stringify a formula:
-//
-// * To show it to the IronCalc user
-// * To store internally
-// * To export to Excel
-//
-// There are, of course correspondingly three "modes" when parsing a formula.
-//
-// The internal representation is the more different as references are stored in the RC representation.
-// The the AST of the formula is kept close to this representation we don't need a context
-//
-// In the export to Excel representation certain things are different:
-// * We add a _xlfn. in front of some (more modern) functions
-// * We remove the Implicit Intersection operator when it is automatic and add _xlfn.SINGLE when it is not
-//
-// Examples:
-// * =A1+B2
-// * =RC+R1C1
-// * =A1+B1
-
 fn stringify(
     node: &Node,
     context: Option<&CellReferenceRC>,
     displace_data: &DisplaceData,
-    export_to_excel: bool,
+    use_original_name: bool,
 ) -> String {
     use self::Node::*;
     match node {
-        BooleanKind(value) => format!("{value}").to_ascii_uppercase(),
+        BooleanKind(value) => format!("{}", value).to_ascii_uppercase(),
         NumberKind(number) => to_excel_precision_str(*number),
-        StringKind(value) => format!("\"{value}\""),
+        StringKind(value) => format!("\"{}\"", value),
         WrongReferenceKind {
             sheet_name,
             column,
@@ -416,7 +354,7 @@ fn stringify(
                 full_row,
                 full_column,
             );
-            format!("{s1}:{s2}")
+            format!("{}:{}", s1, s2)
         }
         WrongRangeKind {
             sheet_name,
@@ -465,56 +403,58 @@ fn stringify(
                 full_row,
                 full_column,
             );
-            format!("{s1}:{s2}")
+            format!("{}:{}", s1, s2)
         }
         OpRangeKind { left, right } => format!(
             "{}:{}",
-            stringify(left, context, displace_data, export_to_excel),
+            stringify(left, context, displace_data, use_original_name),
-            stringify(right, context, displace_data, export_to_excel)
+            stringify(right, context, displace_data, use_original_name)
         ),
         OpConcatenateKind { left, right } => format!(
             "{}&{}",
-            stringify(left, context, displace_data, export_to_excel),
+            stringify(left, context, displace_data, use_original_name),
-            stringify(right, context, displace_data, export_to_excel)
+            stringify(right, context, displace_data, use_original_name)
         ),
         CompareKind { kind, left, right } => format!(
             "{}{}{}",
-            stringify(left, context, displace_data, export_to_excel),
+            stringify(left, context, displace_data, use_original_name),
             kind,
-            stringify(right, context, displace_data, export_to_excel)
+            stringify(right, context, displace_data, use_original_name)
+        ),
+        OpSumKind { kind, left, right } => format!(
+            "{}{}{}",
+            stringify(left, context, displace_data, use_original_name),
+            kind,
+            stringify(right, context, displace_data, use_original_name)
         ),
-        OpSumKind { kind, left, right } => {
-            let left_str = stringify(left, context, displace_data, export_to_excel);
-            // if kind is minus then we need parentheses in the right side if they are OpSumKind or CompareKind
-            let right_str = if (matches!(kind, OpSum::Minus) && matches!(**right, OpSumKind { .. }))
-                | matches!(**right, CompareKind { .. })
-            {
-                format!(
-                    "({})",
-                    stringify(right, context, displace_data, export_to_excel)
-                )
-            } else {
-                stringify(right, context, displace_data, export_to_excel)
-            };
-
-            format!("{left_str}{kind}{right_str}")
-        }
         OpProductKind { kind, left, right } => {
             let x = match **left {
-                OpSumKind { .. } | CompareKind { .. } => format!(
+                OpSumKind { .. } => format!(
                     "({})",
-                    stringify(left, context, displace_data, export_to_excel)
+                    stringify(left, context, displace_data, use_original_name)
                 ),
-                _ => stringify(left, context, displace_data, export_to_excel),
+                CompareKind { .. } => format!(
+                    "({})",
+                    stringify(left, context, displace_data, use_original_name)
+                ),
+                _ => stringify(left, context, displace_data, use_original_name),
             };
             let y = match **right {
-                OpSumKind { .. } | CompareKind { .. } | OpProductKind { .. } => format!(
+                OpSumKind { .. } => format!(
                     "({})",
-                    stringify(right, context, displace_data, export_to_excel)
+                    stringify(right, context, displace_data, use_original_name)
                 ),
-                _ => stringify(right, context, displace_data, export_to_excel),
+                CompareKind { .. } => format!(
+                    "({})",
+                    stringify(right, context, displace_data, use_original_name)
+                ),
+                OpProductKind { .. } => format!(
+                    "({})",
+                    stringify(right, context, displace_data, use_original_name)
+                ),
+                _ => stringify(right, context, displace_data, use_original_name),
             };
-            format!("{x}{kind}{y}")
+            format!("{}{}{}", x, kind, y)
         }
         OpPowerKind { left, right } => {
             let x = match **left {
@@ -527,7 +467,9 @@ fn stringify(
                 | DefinedNameKind(_)
                 | TableNameKind(_)
                 | WrongVariableKind(_)
-                | WrongRangeKind { .. } => stringify(left, context, displace_data, export_to_excel),
+                | WrongRangeKind { .. } => {
+                    stringify(left, context, displace_data, use_original_name)
+                }
                 OpRangeKind { .. }
                 | OpConcatenateKind { .. }
                 | OpProductKind { .. }
@@ -540,10 +482,9 @@ fn stringify(
                 | ParseErrorKind { .. }
                 | OpSumKind { .. }
                 | CompareKind { .. }
-                | ImplicitIntersection { .. }
                 | EmptyArgKind => format!(
                     "({})",
-                    stringify(left, context, displace_data, export_to_excel)
+                    stringify(left, context, displace_data, use_original_name)
                 ),
             };
             let y = match **right {
@@ -557,7 +498,7 @@ fn stringify(
                 | TableNameKind(_)
                 | WrongVariableKind(_)
                 | WrongRangeKind { .. } => {
-                    stringify(right, context, displace_data, export_to_excel)
+                    stringify(right, context, displace_data, use_original_name)
                 }
                 OpRangeKind { .. }
                 | OpConcatenateKind { .. }
@@ -571,129 +512,65 @@ fn stringify(
                 | ParseErrorKind { .. }
                 | OpSumKind { .. }
                 | CompareKind { .. }
-                | ImplicitIntersection { .. }
                 | EmptyArgKind => format!(
                     "({})",
-                    stringify(right, context, displace_data, export_to_excel)
+                    stringify(right, context, displace_data, use_original_name)
                 ),
             };
-            format!("{x}^{y}")
+            format!("{}^{}", x, y)
         }
         InvalidFunctionKind { name, args } => {
-            format_function(name, args, context, displace_data, export_to_excel)
+            format_function(name, args, context, displace_data, use_original_name)
         }
         FunctionKind { kind, args } => {
-            let name = if export_to_excel {
+            let name = if use_original_name {
                 kind.to_xlsx_string()
             } else {
                 kind.to_string()
             };
-            format_function(&name, args, context, displace_data, export_to_excel)
+            format_function(&name, args, context, displace_data, use_original_name)
         }
         ArrayKind(args) => {
-            let mut first_row = true;
+            let mut first = true;
-            let mut matrix_string = String::new();
+            let mut arguments = "".to_string();
-
+            for el in args {
-            for row in args {
+                if !first {
-                if !first_row {
+                    arguments = format!(
-                    matrix_string.push(';');
+                        "{},{}",
+                        arguments,
+                        stringify(el, context, displace_data, use_original_name)
+                    );
                 } else {
-                    first_row = false;
+                    first = false;
+                    arguments = stringify(el, context, displace_data, use_original_name);
                 }
-                let mut first_column = true;
-                let mut row_string = String::new();
-                for el in row {
-                    if !first_column {
-                        row_string.push(',');
-                    } else {
-                        first_column = false;
             }
-                    row_string.push_str(&to_string_array_node(el));
+            format!("{{{}}}", arguments)
-                }
-                matrix_string.push_str(&row_string);
-            }
-            format!("{{{matrix_string}}}")
         }
         TableNameKind(value) => value.to_string(),
-        DefinedNameKind((name, ..)) => name.to_string(),
+        DefinedNameKind((name, _)) => name.to_string(),
         WrongVariableKind(name) => name.to_string(),
         UnaryKind { kind, right } => match kind {
             OpUnary::Minus => {
-                let needs_parentheses = match **right {
-                    BooleanKind(_)
-                    | NumberKind(_)
-                    | StringKind(_)
-                    | ReferenceKind { .. }
-                    | RangeKind { .. }
-                    | WrongReferenceKind { .. }
-                    | WrongRangeKind { .. }
-                    | OpRangeKind { .. }
-                    | OpConcatenateKind { .. }
-                    | OpProductKind { .. }
-                    | OpPowerKind { .. }
-                    | FunctionKind { .. }
-                    | InvalidFunctionKind { .. }
-                    | ArrayKind(_)
-                    | DefinedNameKind(_)
-                    | TableNameKind(_)
-                    | WrongVariableKind(_)
-                    | ImplicitIntersection { .. }
-                    | CompareKind { .. }
-                    | ErrorKind(_)
-                    | ParseErrorKind { .. }
-                    | EmptyArgKind => false,
-
-                    OpSumKind { .. } | UnaryKind { .. } => true,
-                };
-                if needs_parentheses {
-                    format!(
-                        "-({})",
-                        stringify(right, context, displace_data, export_to_excel)
-                    )
-                } else {
                 format!(
                     "-{}",
-                        stringify(right, context, displace_data, export_to_excel)
+                    stringify(right, context, displace_data, use_original_name)
                 )
             }
-            }
             OpUnary::Percentage => {
                 format!(
                     "{}%",
-                    stringify(right, context, displace_data, export_to_excel)
+                    stringify(right, context, displace_data, use_original_name)
                 )
             }
         },
-        ErrorKind(kind) => format!("{kind}"),
+        ErrorKind(kind) => format!("{}", kind),
         ParseErrorKind {
             formula,
             position: _,
             message: _,
         } => formula.to_string(),
         EmptyArgKind => "".to_string(),
-        ImplicitIntersection {
-            automatic: _,
-            child,
-        } => {
-            if export_to_excel {
-                // We need to check wether the II can be automatic or not
-                let mut new_node = child.as_ref().clone();
-
-                add_implicit_intersection(&mut new_node, true);
-                if matches!(&new_node, Node::ImplicitIntersection { .. }) {
-                    return stringify(child, context, displace_data, export_to_excel);
-                }
-
-                return format!(
-                    "_xlfn.SINGLE({})",
-                    stringify(child, context, displace_data, export_to_excel)
-                );
-            }
-            format!(
-                "@{}",
-                stringify(child, context, displace_data, export_to_excel)
-            )
-        }
     }
 }
 
@@ -781,12 +658,6 @@ pub(crate) fn rename_sheet_in_node(node: &mut Node, sheet_index: u32, new_name:
         Node::UnaryKind { kind: _, right } => {
             rename_sheet_in_node(right, sheet_index, new_name);
         }
-        Node::ImplicitIntersection {
-            automatic: _,
-            child,
-        } => {
-            rename_sheet_in_node(child, sheet_index, new_name);
-        }
 
         // Do nothing
         Node::BooleanKind(_) => {}
@@ -810,7 +681,7 @@ pub(crate) fn rename_defined_name_in_node(
 ) {
     match node {
         // Rename
-        Node::DefinedNameKind((n, s, _)) => {
+        Node::DefinedNameKind((n, s)) => {
             if name.to_lowercase() == n.to_lowercase() && *s == scope {
                 *n = new_name.to_string();
             }
@@ -865,12 +736,6 @@ pub(crate) fn rename_defined_name_in_node(
         Node::UnaryKind { kind: _, right } => {
             rename_defined_name_in_node(right, name, scope, new_name);
         }
-        Node::ImplicitIntersection {
-            automatic: _,
-            child,
-        } => {
-            rename_defined_name_in_node(child, name, scope, new_name);
-        }
 
         // Do nothing
         Node::BooleanKind(_) => {}

base/src/expressions/parser/tests/mod.rs

@@ -1,7 +1,4 @@
-mod test_add_implicit_intersection;
-mod test_arrays;
 mod test_general;
-mod test_implicit_intersection;
 mod test_issue_155;
 mod test_move_formula;
 mod test_ranges;

base/src/expressions/parser/tests/test_add_implicit_intersection.rs

@@ -1,80 +0,0 @@
-use std::collections::HashMap;
-
-use crate::expressions::{
-    parser::{
-        stringify::{to_excel_string, to_string},
-        Parser,
-    },
-    types::CellReferenceRC,
-};
-
-use crate::expressions::parser::static_analysis::add_implicit_intersection;
-
-#[test]
-fn simple_test() {
-    let worksheets = vec!["Sheet1".to_string()];
-    let mut parser = Parser::new(worksheets, vec![], HashMap::new());
-
-    // Reference cell is Sheet1!A1
-    let cell_reference = CellReferenceRC {
-        sheet: "Sheet1".to_string(),
-        row: 1,
-        column: 1,
-    };
-    let cases = vec![
-        ("A1:A10*SUM(A1:A10)", "@A1:A10*SUM(A1:A10)"),
-        ("A1:A10", "@A1:A10"),
-        // Math and trigonometry functions
-        ("SUM(A1:A10)", "SUM(A1:A10)"),
-        ("SIN(A1:A10)", "SIN(@A1:A10)"),
-        ("COS(A1:A10)", "COS(@A1:A10)"),
-        ("TAN(A1:A10)", "TAN(@A1:A10)"),
-        ("ASIN(A1:A10)", "ASIN(@A1:A10)"),
-        ("ACOS(A1:A10)", "ACOS(@A1:A10)"),
-        ("ATAN(A1:A10)", "ATAN(@A1:A10)"),
-        ("SINH(A1:A10)", "SINH(@A1:A10)"),
-        ("COSH(A1:A10)", "COSH(@A1:A10)"),
-        ("TANH(A1:A10)", "TANH(@A1:A10)"),
-        ("ASINH(A1:A10)", "ASINH(@A1:A10)"),
-        ("ACOSH(A1:A10)", "ACOSH(@A1:A10)"),
-        ("ATANH(A1:A10)", "ATANH(@A1:A10)"),
-        ("ATAN2(A1:A10,B1:B10)", "ATAN2(@A1:A10,@B1:B10)"),
-        ("ATAN2(A1:A10,A1)", "ATAN2(@A1:A10,A1)"),
-        ("SQRT(A1:A10)", "SQRT(@A1:A10)"),
-        ("SQRTPI(A1:A10)", "SQRTPI(@A1:A10)"),
-        ("POWER(A1:A10,A1)", "POWER(@A1:A10,A1)"),
-        ("POWER(A1:A10,B1:B10)", "POWER(@A1:A10,@B1:B10)"),
-        ("MAX(A1:A10)", "MAX(A1:A10)"),
-        ("MIN(A1:A10)", "MIN(A1:A10)"),
-        ("ABS(A1:A10)", "ABS(@A1:A10)"),
-        ("FALSE()", "FALSE()"),
-        ("TRUE()", "TRUE()"),
-        // Defined names
-        ("BADNMAE", "@BADNMAE"),
-        // Logical
-        ("AND(A1:A10)", "AND(A1:A10)"),
-        ("OR(A1:A10)", "OR(A1:A10)"),
-        ("NOT(A1:A10)", "NOT(@A1:A10)"),
-        ("IF(A1:A10,B1:B10,C1:C10)", "IF(@A1:A10,@B1:B10,@C1:C10)"),
-        // Information
-        // ("ISBLANK(A1:A10)", "ISBLANK(A1:A10)"),
-        // ("ISERR(A1:A10)", "ISERR(A1:A10)"),
-        // ("ISERROR(A1:A10)", "ISERROR(A1:A10)"),
-        // ("ISEVEN(A1:A10)", "ISEVEN(A1:A10)"),
-        // ("ISLOGICAL(A1:A10)", "ISLOGICAL(A1:A10)"),
-        // ("ISNA(A1:A10)", "ISNA(A1:A10)"),
-        // ("ISNONTEXT(A1:A10)", "ISNONTEXT(A1:A10)"),
-        // ("ISNUMBER(A1:A10)", "ISNUMBER(A1:A10)"),
-        // ("ISODD(A1:A10)", "ISODD(A1:A10)"),
-        // ("ISREF(A1:A10)", "ISREF(A1:A10)"),
-        // ("ISTEXT(A1:A10)", "ISTEXT(A1:A10)"),
-    ];
-    for (formula, expected) in cases {
-        let mut t = parser.parse(formula, &cell_reference);
-        add_implicit_intersection(&mut t, true);
-        let r = to_string(&t, &cell_reference);
-        assert_eq!(r, expected);
-        let excel_formula = to_excel_string(&t, &cell_reference);
-        assert_eq!(excel_formula, formula);
-    }
-}

base/src/expressions/parser/tests/test_arrays.rs

@@ -1,92 +0,0 @@
-#![allow(clippy::panic)]
-
-use std::collections::HashMap;
-
-use crate::expressions::parser::stringify::{to_rc_format, to_string};
-use crate::expressions::parser::{ArrayNode, Node, Parser};
-use crate::expressions::types::CellReferenceRC;
-
-#[test]
-fn simple_horizontal() {
-    let worksheets = vec!["Sheet1".to_string()];
-    let mut parser = Parser::new(worksheets, vec![], HashMap::new());
-
-    // Reference cell is Sheet1!A1
-    let cell_reference = CellReferenceRC {
-        sheet: "Sheet1".to_string(),
-        row: 1,
-        column: 1,
-    };
-    let horizontal = parser.parse("{1, 2, 3}", &cell_reference);
-    assert_eq!(
-        horizontal,
-        Node::ArrayKind(vec![vec![
-            ArrayNode::Number(1.0),
-            ArrayNode::Number(2.0),
-            ArrayNode::Number(3.0)
-        ]])
-    );
-
-    assert_eq!(to_rc_format(&horizontal), "{1,2,3}");
-    assert_eq!(to_string(&horizontal, &cell_reference), "{1,2,3}");
-}
-
-#[test]
-fn simple_vertical() {
-    let worksheets = vec!["Sheet1".to_string()];
-    let mut parser = Parser::new(worksheets, vec![], HashMap::new());
-
-    // Reference cell is Sheet1!A1
-    let cell_reference = CellReferenceRC {
-        sheet: "Sheet1".to_string(),
-        row: 1,
-        column: 1,
-    };
-    let vertical = parser.parse("{1;2; 3}", &cell_reference);
-    assert_eq!(
-        vertical,
-        Node::ArrayKind(vec![
-            vec![ArrayNode::Number(1.0)],
-            vec![ArrayNode::Number(2.0)],
-            vec![ArrayNode::Number(3.0)]
-        ])
-    );
-    assert_eq!(to_rc_format(&vertical), "{1;2;3}");
-    assert_eq!(to_string(&vertical, &cell_reference), "{1;2;3}");
-}
-
-#[test]
-fn simple_matrix() {
-    let worksheets = vec!["Sheet1".to_string()];
-    let mut parser = Parser::new(worksheets, vec![], HashMap::new());
-
-    // Reference cell is Sheet1!A1
-    let cell_reference = CellReferenceRC {
-        sheet: "Sheet1".to_string(),
-        row: 1,
-        column: 1,
-    };
-    let matrix = parser.parse("{1,2,3; 4, 5, 6; 7,8,9}", &cell_reference);
-    assert_eq!(
-        matrix,
-        Node::ArrayKind(vec![
-            vec![
-                ArrayNode::Number(1.0),
-                ArrayNode::Number(2.0),
-                ArrayNode::Number(3.0)
-            ],
-            vec![
-                ArrayNode::Number(4.0),
-                ArrayNode::Number(5.0),
-                ArrayNode::Number(6.0)
-            ],
-            vec![
-                ArrayNode::Number(7.0),
-                ArrayNode::Number(8.0),
-                ArrayNode::Number(9.0)
-            ]
-        ])
-    );
-    assert_eq!(to_rc_format(&matrix), "{1,2,3;4,5,6;7,8,9}");
-    assert_eq!(to_string(&matrix, &cell_reference), "{1,2,3;4,5,6;7,8,9}");
-}

base/src/expressions/parser/tests/test_implicit_intersection.rs

@@ -1,75 +0,0 @@
-#![allow(clippy::panic)]
-
-use crate::expressions::parser::{Node, Parser};
-use crate::expressions::types::CellReferenceRC;
-use std::collections::HashMap;
-
-#[test]
-fn simple() {
-    let worksheets = vec!["Sheet1".to_string()];
-    let mut parser = Parser::new(worksheets, vec![], HashMap::new());
-
-    // Reference cell is Sheet1!B3
-    let cell_reference = CellReferenceRC {
-        sheet: "Sheet1".to_string(),
-        row: 3,
-        column: 2,
-    };
-    let t = parser.parse("@A1:A10", &cell_reference);
-    let child = Node::RangeKind {
-        sheet_name: None,
-        sheet_index: 0,
-        absolute_row1: false,
-        absolute_column1: false,
-        row1: -2,
-        column1: -1,
-        absolute_row2: false,
-        absolute_column2: false,
-        row2: 7,
-        column2: -1,
-    };
-    assert_eq!(
-        t,
-        Node::ImplicitIntersection {
-            automatic: false,
-            child: Box::new(child)
-        }
-    )
-}
-
-#[test]
-fn simple_add() {
-    let worksheets = vec!["Sheet1".to_string()];
-    let mut parser = Parser::new(worksheets, vec![], HashMap::new());
-
-    // Reference cell is Sheet1!B3
-    let cell_reference = CellReferenceRC {
-        sheet: "Sheet1".to_string(),
-        row: 3,
-        column: 2,
-    };
-    let t = parser.parse("@A1:A10+12", &cell_reference);
-    let child = Node::RangeKind {
-        sheet_name: None,
-        sheet_index: 0,
-        absolute_row1: false,
-        absolute_column1: false,
-        row1: -2,
-        column1: -1,
-        absolute_row2: false,
-        absolute_column2: false,
-        row2: 7,
-        column2: -1,
-    };
-    assert_eq!(
-        t,
-        Node::OpSumKind {
-            kind: crate::expressions::token::OpSum::Add,
-            left: Box::new(Node::ImplicitIntersection {
-                automatic: false,
-                child: Box::new(child)
-            }),
-            right: Box::new(Node::NumberKind(12.0))
-        }
-    )
-}

base/src/expressions/parser/tests/test_move_formula.rs

@@ -387,7 +387,7 @@ fn test_move_formula_misc() {
         width: 4,
         height: 5,
     };
-    let node = parser.parse("X9^C2-F4*H2+SUM(F2:H4)+SUM(C2:F6)", context);
+    let node = parser.parse("X9^C2-F4*H2", context);
     let t = move_formula(
         &node,
         &MoveContext {
@@ -400,7 +400,7 @@ fn test_move_formula_misc() {
             column_delta: 10,
         },
     );
-    assert_eq!(t, "X9^M12-P14*H2+SUM(F2:H4)+SUM(M12:P16)");
+    assert_eq!(t, "X9^M12-P14*H2");
 
     let node = parser.parse("F5*(-D5)*SUM(A1, X9, $D$5)", context);
     let t = move_formula(
@@ -475,77 +475,3 @@ fn test_move_formula_another_sheet() {
         "Sheet1!AB31*SUM(Sheet1!JJ3:JJ4)+SUM(Sheet2!C2:F6)*SUM(M12:P16)"
     );
 }
-
-#[test]
-fn move_formula_implicit_intersetion() {
-    // context is E4
-    let row = 4;
-    let column = 5;
-    let context = &CellReferenceRC {
-        sheet: "Sheet1".to_string(),
-        row,
-        column,
-    };
-    let worksheets = vec!["Sheet1".to_string()];
-    let mut parser = Parser::new(worksheets, vec![], HashMap::new());
-
-    // Area is C2:F6
-    let area = &Area {
-        sheet: 0,
-        row: 2,
-        column: 3,
-        width: 4,
-        height: 5,
-    };
-    let node = parser.parse("SUM(@F2:H4)+SUM(@C2:F6)", context);
-    let t = move_formula(
-        &node,
-        &MoveContext {
-            source_sheet_name: "Sheet1",
-            row,
-            column,
-            area,
-            target_sheet_name: "Sheet1",
-            row_delta: 10,
-            column_delta: 10,
-        },
-    );
-    assert_eq!(t, "SUM(@F2:H4)+SUM(@M12:P16)");
-}
-
-#[test]
-fn move_formula_implicit_intersetion_with_ranges() {
-    // context is E4
-    let row = 4;
-    let column = 5;
-    let context = &CellReferenceRC {
-        sheet: "Sheet1".to_string(),
-        row,
-        column,
-    };
-    let worksheets = vec!["Sheet1".to_string()];
-    let mut parser = Parser::new(worksheets, vec![], HashMap::new());
-
-    // Area is C2:F6
-    let area = &Area {
-        sheet: 0,
-        row: 2,
-        column: 3,
-        width: 4,
-        height: 5,
-    };
-    let node = parser.parse("SUM(@F2:H4)+SUM(@C2:F6)+SUM(@A1, @X9, @$D$5)", context);
-    let t = move_formula(
-        &node,
-        &MoveContext {
-            source_sheet_name: "Sheet1",
-            row,
-            column,
-            area,
-            target_sheet_name: "Sheet1",
-            row_delta: 10,
-            column_delta: 10,
-        },
-    );
-    assert_eq!(t, "SUM(@F2:H4)+SUM(@M12:P16)+SUM(@A1,@X9,@$N$15)");
-}

base/src/expressions/parser/tests/test_stringify.rs

@@ -32,39 +32,3 @@ fn exp_order() {
     let t = parser.parse("(5)^(4)", &cell_reference);
     assert_eq!(to_string(&t, &cell_reference), "5^4");
 }
-
-#[test]
-fn correct_parenthesis() {
-    let worksheets = vec!["Sheet1".to_string()];
-    let mut parser = Parser::new(worksheets, vec![], HashMap::new());
-
-    let cell_reference = CellReferenceRC {
-        sheet: "Sheet1".to_string(),
-        row: 1,
-        column: 1,
-    };
-
-    let t = parser.parse("-(1 + 1)", &cell_reference);
-    assert_eq!(to_string(&t, &cell_reference), "-(1+1)");
-
-    let t = parser.parse("1 - (3 + 4)", &cell_reference);
-    assert_eq!(to_string(&t, &cell_reference), "1-(3+4)");
-
-    let t = parser.parse("-(1.05*(0.0284 + 0.0046) - 0.0284)", &cell_reference);
-    assert_eq!(
-        to_string(&t, &cell_reference),
-        "-(1.05*(0.0284+0.0046)-0.0284)"
-    );
-
-    let t = parser.parse("1 + (3+5)", &cell_reference);
-    assert_eq!(to_string(&t, &cell_reference), "1+3+5");
-
-    let t = parser.parse("1 - (3+5)", &cell_reference);
-    assert_eq!(to_string(&t, &cell_reference), "1-(3+5)");
-
-    let t = parser.parse("(1 - 3) - (3+5)", &cell_reference);
-    assert_eq!(to_string(&t, &cell_reference), "1-3-(3+5)");
-
-    let t = parser.parse("1 + (3<5)", &cell_reference);
-    assert_eq!(to_string(&t, &cell_reference), "1+(3<5)");
-}

base/src/expressions/parser/tests/test_tables.rs

@@ -3,11 +3,12 @@
 use std::collections::HashMap;
 
 use crate::expressions::parser::stringify::to_string;
-use crate::expressions::parser::Parser;
-use crate::expressions::types::CellReferenceRC;
 use crate::expressions::utils::{number_to_column, parse_reference_a1};
 use crate::types::{Table, TableColumn, TableStyleInfo};
 
+use crate::expressions::parser::Parser;
+use crate::expressions::types::CellReferenceRC;
+
 fn create_test_table(
     table_name: &str,
     column_names: &[&str],

base/src/expressions/parser/walk.rs

@@ -0,0 +1,278 @@
+use super::{move_formula::ref_is_in_area, Node};
+
+use crate::expressions::types::{Area, CellReferenceIndex};
+
+pub(crate) fn forward_references(
+    node: &mut Node,
+    context: &CellReferenceIndex,
+    source_area: &Area,
+    target_sheet: u32,
+    target_sheet_name: &str,
+    target_row: i32,
+    target_column: i32,
+) {
+    match node {
+        Node::ReferenceKind {
+            sheet_name,
+            sheet_index: reference_sheet,
+            absolute_row,
+            absolute_column,
+            row: reference_row,
+            column: reference_column,
+        } => {
+            let reference_row_absolute = if *absolute_row {
+                *reference_row
+            } else {
+                *reference_row + context.row
+            };
+            let reference_column_absolute = if *absolute_column {
+                *reference_column
+            } else {
+                *reference_column + context.column
+            };
+            if ref_is_in_area(
+                *reference_sheet,
+                reference_row_absolute,
+                reference_column_absolute,
+                source_area,
+            ) {
+                if *reference_sheet != target_sheet {
+                    *sheet_name = Some(target_sheet_name.to_string());
+                    *reference_sheet = target_sheet;
+                }
+                *reference_row = target_row + *reference_row - source_area.row;
+                *reference_column = target_column + *reference_column - source_area.column;
+            }
+        }
+        Node::RangeKind {
+            sheet_name,
+            sheet_index,
+            absolute_row1,
+            absolute_column1,
+            row1,
+            column1,
+            absolute_row2,
+            absolute_column2,
+            row2,
+            column2,
+        } => {
+            let reference_row1 = if *absolute_row1 {
+                *row1
+            } else {
+                *row1 + context.row
+            };
+            let reference_column1 = if *absolute_column1 {
+                *column1
+            } else {
+                *column1 + context.column
+            };
+
+            let reference_row2 = if *absolute_row2 {
+                *row2
+            } else {
+                *row2 + context.row
+            };
+            let reference_column2 = if *absolute_column2 {
+                *column2
+            } else {
+                *column2 + context.column
+            };
+            if ref_is_in_area(*sheet_index, reference_row1, reference_column1, source_area)
+                && ref_is_in_area(*sheet_index, reference_row2, reference_column2, source_area)
+            {
+                if *sheet_index != target_sheet {
+                    *sheet_index = target_sheet;
+                    *sheet_name = Some(target_sheet_name.to_string());
+                }
+                *row1 = target_row + *row1 - source_area.row;
+                *column1 = target_column + *column1 - source_area.column;
+                *row2 = target_row + *row2 - source_area.row;
+                *column2 = target_column + *column2 - source_area.column;
+            }
+        }
+        // Recurse
+        Node::OpRangeKind { left, right } => {
+            forward_references(
+                left,
+                context,
+                source_area,
+                target_sheet,
+                target_sheet_name,
+                target_row,
+                target_column,
+            );
+            forward_references(
+                right,
+                context,
+                source_area,
+                target_sheet,
+                target_sheet_name,
+                target_row,
+                target_column,
+            );
+        }
+        Node::OpConcatenateKind { left, right } => {
+            forward_references(
+                left,
+                context,
+                source_area,
+                target_sheet,
+                target_sheet_name,
+                target_row,
+                target_column,
+            );
+            forward_references(
+                right,
+                context,
+                source_area,
+                target_sheet,
+                target_sheet_name,
+                target_row,
+                target_column,
+            );
+        }
+        Node::OpSumKind {
+            kind: _,
+            left,
+            right,
+        } => {
+            forward_references(
+                left,
+                context,
+                source_area,
+                target_sheet,
+                target_sheet_name,
+                target_row,
+                target_column,
+            );
+            forward_references(
+                right,
+                context,
+                source_area,
+                target_sheet,
+                target_sheet_name,
+                target_row,
+                target_column,
+            );
+        }
+        Node::OpProductKind {
+            kind: _,
+            left,
+            right,
+        } => {
+            forward_references(
+                left,
+                context,
+                source_area,
+                target_sheet,
+                target_sheet_name,
+                target_row,
+                target_column,
+            );
+            forward_references(
+                right,
+                context,
+                source_area,
+                target_sheet,
+                target_sheet_name,
+                target_row,
+                target_column,
+            );
+        }
+        Node::OpPowerKind { left, right } => {
+            forward_references(
+                left,
+                context,
+                source_area,
+                target_sheet,
+                target_sheet_name,
+                target_row,
+                target_column,
+            );
+            forward_references(
+                right,
+                context,
+                source_area,
+                target_sheet,
+                target_sheet_name,
+                target_row,
+                target_column,
+            );
+        }
+        Node::FunctionKind { kind: _, args } => {
+            for arg in args {
+                forward_references(
+                    arg,
+                    context,
+                    source_area,
+                    target_sheet,
+                    target_sheet_name,
+                    target_row,
+                    target_column,
+                );
+            }
+        }
+        Node::InvalidFunctionKind { name: _, args } => {
+            for arg in args {
+                forward_references(
+                    arg,
+                    context,
+                    source_area,
+                    target_sheet,
+                    target_sheet_name,
+                    target_row,
+                    target_column,
+                );
+            }
+        }
+        Node::CompareKind {
+            kind: _,
+            left,
+            right,
+        } => {
+            forward_references(
+                left,
+                context,
+                source_area,
+                target_sheet,
+                target_sheet_name,
+                target_row,
+                target_column,
+            );
+            forward_references(
+                right,
+                context,
+                source_area,
+                target_sheet,
+                target_sheet_name,
+                target_row,
+                target_column,
+            );
+        }
+        Node::UnaryKind { kind: _, right } => {
+            forward_references(
+                right,
+                context,
+                source_area,
+                target_sheet,
+                target_sheet_name,
+                target_row,
+                target_column,
+            );
+        }
+        // TODO: Not implemented
+        Node::ArrayKind(_) => {}
+        // Do nothing. Note: we could do a blanket _ => {}
+        Node::DefinedNameKind(_) => {}
+        Node::TableNameKind(_) => {}
+        Node::WrongVariableKind(_) => {}
+        Node::ErrorKind(_) => {}
+        Node::ParseErrorKind { .. } => {}
+        Node::EmptyArgKind => {}
+        Node::BooleanKind(_) => {}
+        Node::NumberKind(_) => {}
+        Node::StringKind(_) => {}
+        Node::WrongReferenceKind { .. } => {}
+        Node::WrongRangeKind { .. } => {}
+    }
+}

base/src/expressions/token.rs

@@ -197,7 +197,7 @@ pub fn is_english_error_string(name: &str) -> bool {
         "#REF!", "#NAME?", "#VALUE!", "#DIV/0!", "#N/A", "#NUM!", "#ERROR!", "#N/IMPL!", "#SPILL!",
         "#CALC!", "#CIRC!", "#NULL!",
     ];
-    names.contains(&name)
+    names.iter().any(|e| *e == name)
 }
 
 #[derive(Debug, PartialEq, Clone, Serialize, Deserialize)]
@@ -240,7 +240,6 @@ pub enum TokenType {
     Bang,               // !
     Percent,            // %
     And,                // &
-    At,                 // @
     Reference {
         sheet: Option<String>,
         row: i32,

base/src/expressions/utils/test.rs

@@ -211,6 +211,4 @@ fn test_names() {
     assert!(!is_valid_identifier("test€"));
     assert!(!is_valid_identifier("truñe"));
     assert!(!is_valid_identifier("tr&ue"));
-
-    assert!(!is_valid_identifier("LOG10"));
 }

base/src/formatter/dates.rs

@@ -8,8 +8,6 @@ use crate::constants::EXCEL_DATE_BASE;
 use crate::constants::MAXIMUM_DATE_SERIAL_NUMBER;
 use crate::constants::MINIMUM_DATE_SERIAL_NUMBER;
 
-pub const DATE_OUT_OF_RANGE_MESSAGE: &str = "Out of range parameters for date";
-
 #[inline]
 fn convert_to_serial_number(date: NaiveDate) -> i32 {
     date.num_days_from_ce() - EXCEL_DATE_BASE
@@ -23,12 +21,14 @@ fn is_date_within_range(date: NaiveDate) -> bool {
 pub fn from_excel_date(days: i64) -> Result<NaiveDate, String> {
     if days < MINIMUM_DATE_SERIAL_NUMBER as i64 {
         return Err(format!(
-            "Excel date must be greater than {MINIMUM_DATE_SERIAL_NUMBER}"
+            "Excel date must be greater than {}",
+            MINIMUM_DATE_SERIAL_NUMBER
         ));
     };
     if days > MAXIMUM_DATE_SERIAL_NUMBER as i64 {
         return Err(format!(
-            "Excel date must be less than {MAXIMUM_DATE_SERIAL_NUMBER}"
+            "Excel date must be less than {}",
+            MAXIMUM_DATE_SERIAL_NUMBER
         ));
     };
     #[allow(clippy::expect_used)]
@@ -39,7 +39,7 @@ pub fn from_excel_date(days: i64) -> Result<NaiveDate, String> {
 pub fn date_to_serial_number(day: u32, month: u32, year: i32) -> Result<i32, String> {
     match NaiveDate::from_ymd_opt(year, month, day) {
         Some(native_date) => Ok(convert_to_serial_number(native_date)),
-        None => Err(DATE_OUT_OF_RANGE_MESSAGE.to_string()),
+        None => Err("Out of range parameters for date".to_string()),
     }
 }
 
@@ -57,7 +57,7 @@ pub fn permissive_date_to_serial_number(day: i32, month: i32, year: i32) -> Resu
         return Ok(MINIMUM_DATE_SERIAL_NUMBER);
     }
     let Some(mut date) = NaiveDate::from_ymd_opt(year, 1, 1) else {
-        return Err(DATE_OUT_OF_RANGE_MESSAGE.to_string());
+        return Err("Out of range parameters for date".to_string());
     };
 
     // One thing to note for example is that even if you started with a year out of range
@@ -70,7 +70,7 @@ pub fn permissive_date_to_serial_number(day: i32, month: i32, year: i32) -> Resu
     // As a result, we have to run range checks as we parse the date from the biggest unit to the
     // smallest unit.
     if !is_date_within_range(date) {
-        return Err(DATE_OUT_OF_RANGE_MESSAGE.to_string());
+        return Err("Out of range parameters for date".to_string());
     }
 
     date = {
@@ -82,7 +82,7 @@ pub fn permissive_date_to_serial_number(day: i32, month: i32, year: i32) -> Resu
             date = date + Months::new(abs_month);
         }
         if !is_date_within_range(date) {
-            return Err(DATE_OUT_OF_RANGE_MESSAGE.to_string());
+            return Err("Out of range parameters for date".to_string());
         }
         date
     };
@@ -96,7 +96,7 @@ pub fn permissive_date_to_serial_number(day: i32, month: i32, year: i32) -> Resu
             date = date + Days::new(abs_day);
         }
         if !is_date_within_range(date) {
-            return Err(DATE_OUT_OF_RANGE_MESSAGE.to_string());
+            return Err("Out of range parameters for date".to_string());
         }
         date
     };

base/src/formatter/format.rs

@@ -120,7 +120,7 @@ pub fn format_number(value_original: f64, format: &str, locale: &Locale) -> Form
             // We should have different codepaths for general formatting and errors
             let value_abs = value.abs();
             if (1.0e-8..1.0e+11).contains(&value_abs) {
-                let mut text = format!("{value:.9}");
+                let mut text = format!("{:.9}", value);
                 text = text.trim_end_matches('0').trim_end_matches('.').to_string();
                 Formatted {
                     text,
@@ -138,7 +138,7 @@ pub fn format_number(value_original: f64, format: &str, locale: &Locale) -> Form
                 let exponent = value_abs.log10().floor();
                 value /= 10.0_f64.powf(exponent);
                 let sign = if exponent < 0.0 { '-' } else { '+' };
-                let s = format!("{value:.5}");
+                let s = format!("{:.5}", value);
                 Formatted {
                     text: format!(
                         "{}E{}{:02}",
@@ -167,33 +167,33 @@ pub fn format_number(value_original: f64, format: &str, locale: &Locale) -> Form
             for token in tokens {
                 match token {
                     TextToken::Literal(c) => {
-                        text = format!("{text}{c}");
+                        text = format!("{}{}", text, c);
                     }
                     TextToken::Text(t) => {
-                        text = format!("{text}{t}");
+                        text = format!("{}{}", text, t);
                     }
                     TextToken::Ghost(_) => {
                         // we just leave a whitespace
                         // This is what the TEXT function does
-                        text = format!("{text} ");
+                        text = format!("{} ", text);
                     }
                     TextToken::Spacer(_) => {
                         // we just leave a whitespace
                         // This is what the TEXT function does
-                        text = format!("{text} ");
+                        text = format!("{} ", text);
                     }
                     TextToken::Raw => {
-                        text = format!("{text}{value}");
+                        text = format!("{}{}", text, value);
                     }
                     TextToken::Digit(_) => {}
                     TextToken::Period => {}
                     TextToken::Day => {
                         let day = date.day() as usize;
-                        text = format!("{text}{day}");
+                        text = format!("{}{}", text, day);
                     }
                     TextToken::DayPadded => {
                         let day = date.day() as usize;
-                        text = format!("{text}{day:02}");
+                        text = format!("{}{:02}", text, day);
                     }
                     TextToken::DayNameShort => {
                         let mut day = date.weekday().number_from_monday() as usize;
@@ -211,11 +211,11 @@ pub fn format_number(value_original: f64, format: &str, locale: &Locale) -> Form
                     }
                     TextToken::Month => {
                         let month = date.month() as usize;
-                        text = format!("{text}{month}");
+                        text = format!("{}{}", text, month);
                     }
                     TextToken::MonthPadded => {
                         let month = date.month() as usize;
-                        text = format!("{text}{month:02}");
+                        text = format!("{}{:02}", text, month);
                     }
                     TextToken::MonthNameShort => {
                         let month = date.month() as usize;
@@ -228,7 +228,7 @@ pub fn format_number(value_original: f64, format: &str, locale: &Locale) -> Form
                     TextToken::MonthLetter => {
                         let month = date.month() as usize;
                         let months_letter = &locale.dates.months_letter[month - 1];
-                        text = format!("{text}{months_letter}");
+                        text = format!("{}{}", text, months_letter);
                     }
                     TextToken::YearShort => {
                         text = format!("{}{}", text, date.format("%y"));
@@ -247,7 +247,7 @@ pub fn format_number(value_original: f64, format: &str, locale: &Locale) -> Form
         ParsePart::Number(p) => {
             let mut text = "".to_string();
             if let Some(c) = p.currency {
-                text = format!("{c}");
+                text = format!("{}", c);
             }
             let tokens = &p.tokens;
             value = value * 100.0_f64.powi(p.percent) / (1000.0_f64.powi(p.comma));
@@ -295,26 +295,26 @@ pub fn format_number(value_original: f64, format: &str, locale: &Locale) -> Form
             for token in tokens {
                 match token {
                     TextToken::Literal(c) => {
-                        text = format!("{text}{c}");
+                        text = format!("{}{}", text, c);
                     }
                     TextToken::Text(t) => {
-                        text = format!("{text}{t}");
+                        text = format!("{}{}", text, t);
                     }
                     TextToken::Ghost(_) => {
                         // we just leave a whitespace
                         // This is what the TEXT function does
-                        text = format!("{text} ");
+                        text = format!("{} ", text);
                     }
                     TextToken::Spacer(_) => {
                         // we just leave a whitespace
                         // This is what the TEXT function does
-                        text = format!("{text} ");
+                        text = format!("{} ", text);
                     }
                     TextToken::Raw => {
-                        text = format!("{text}{value}");
+                        text = format!("{}{}", text, value);
                     }
                     TextToken::Period => {
-                        text = format!("{text}{decimal_separator}");
+                        text = format!("{}{}", text, decimal_separator);
                     }
                     TextToken::Digit(digit) => {
                         if digit.number == 'i' {
@@ -322,7 +322,7 @@ pub fn format_number(value_original: f64, format: &str, locale: &Locale) -> Form
                             let index = digit.index;
                             let number_index = ln - digit_count + index;
                             if index == 0 && is_negative {
-                                text = format!("-{text}");
+                                text = format!("-{}", text);
                             }
                             if ln <= digit_count {
                                 // The number of digits is less or equal than the number of digit tokens
@@ -347,7 +347,7 @@ pub fn format_number(value_original: f64, format: &str, locale: &Locale) -> Form
                                     } else {
                                         ""
                                     };
-                                    text = format!("{text}{c}{sep}");
+                                    text = format!("{}{}{}", text, c, sep);
                                 }
                                 digit_index += 1;
                             } else {
@@ -373,18 +373,18 @@ pub fn format_number(value_original: f64, format: &str, locale: &Locale) -> Form
                             if index < fract_part.len() {
                                 text = format!("{}{}", text, fract_part[index]);
                             } else if digit.kind == '0' {
-                                text = format!("{text}0");
+                                text = format!("{}0", text);
                             } else if digit.kind == '?' {
-                                text = format!("{text} ");
+                                text = format!("{} ", text);
                             }
                         } else if digit.number == 'e' {
                             // 3. Exponent part
                             let index = digit.index;
                             if index == 0 {
                                 if exponent_is_negative {
-                                    text = format!("{text}E-");
+                                    text = format!("{}E-", text);
                                 } else {
-                                    text = format!("{text}E+");
+                                    text = format!("{}E+", text);
                                 }
                             }
                             let number_index = l_exp - (p.exponent_digit_count - index);
@@ -400,7 +400,7 @@ pub fn format_number(value_original: f64, format: &str, locale: &Locale) -> Form
                                         exponent_part[number_index as usize]
                                     };
 
-                                    text = format!("{text}{c}");
+                                    text = format!("{}{}", text, c);
                                 }
                             } else {
                                 for i in 0..number_index + 1 {
@@ -614,7 +614,7 @@ pub(crate) fn parse_formatted_number(
 
     // check if it is a currency in currencies
     for currency in currencies {
-        if let Some(p) = value.strip_prefix(&format!("-{currency}")) {
+        if let Some(p) = value.strip_prefix(&format!("-{}", currency)) {
             let (f, options) = parse_number(p.trim())?;
             if options.is_scientific {
                 return Ok((f, Some(scientific_format.to_string())));

base/src/formatter/lexer.rs

@@ -178,7 +178,10 @@ impl Lexer {
             }
         }
         self.position = position;
-        chars.parse::<f64>().ok()
+        match chars.parse::<f64>() {
+            Err(_) => None,
+            Ok(v) => Some(v),
+        }
     }
 
     fn consume_condition(&mut self) -> Option<(Compare, f64)> {
@@ -333,7 +336,7 @@ impl Lexer {
                         } else if s == '-' {
                             Token::ScientificMinus
                         } else {
-                            self.set_error(&format!("Unexpected char: {s}. Expected + or -"));
+                            self.set_error(&format!("Unexpected char: {}. Expected + or -", s));
                             Token::ILLEGAL
                         }
                     } else {
@@ -385,14 +388,14 @@ impl Lexer {
                     for c in "eneral".chars() {
                         let cc = self.read_next_char();
                         if Some(c) != cc {
-                            self.set_error(&format!("Unexpected character: {x}"));
+                            self.set_error(&format!("Unexpected character: {}", x));
                             return Token::ILLEGAL;
                         }
                     }
                     Token::General
                 }
                 _ => {
-                    self.set_error(&format!("Unexpected character: {x}"));
+                    self.set_error(&format!("Unexpected character: {}", x));
                     Token::ILLEGAL
                 }
             },

base/src/functions/engineering/complex.rs

@@ -46,18 +46,18 @@ impl fmt::Display for Complex {
         // it is a bit weird what Excel does but it seems it uses general notation for
         // numbers > 1e-20 and scientific notation for the rest
         let y_str = if y.abs() <= 9e-20 {
-            format!("{y:E}")
+            format!("{:E}", y)
         } else if y == 1.0 {
             "".to_string()
         } else if y == -1.0 {
             "-".to_string()
         } else {
-            format!("{y}")
+            format!("{}", y)
         };
         let x_str = if x.abs() <= 9e-20 {
-            format!("{x:E}")
+            format!("{:E}", x)
         } else {
-            format!("{x}")
+            format!("{}", x)
         };
         if y == 0.0 && x == 0.0 {
             write!(f, "0")

base/src/functions/engineering/number_basis.rs

@@ -76,7 +76,7 @@ impl Model {
         if value < 0 {
             CalcResult::String(format!("{:0width$X}", HEX_MAX + value, width = 9))
         } else {
-            let result = format!("{value:X}");
+            let result = format!("{:X}", value);
             if let Some(places) = places {
                 if places < result.len() as i32 {
                     return CalcResult::new_error(
@@ -120,7 +120,7 @@ impl Model {
         if value < 0 {
             CalcResult::String(format!("{:0width$o}", OCT_MAX + value, width = 9))
         } else {
-            let result = format!("{value:o}");
+            let result = format!("{:o}", value);
             if let Some(places) = places {
                 if places < result.len() as i32 {
                     return CalcResult::new_error(
@@ -163,7 +163,7 @@ impl Model {
         if value < 0 {
             value += 1024;
         }
-        let result = format!("{value:b}");
+        let result = format!("{:b}", value);
         if let Some(places) = places {
             if value_raw > 0.0 && places < result.len() as i32 {
                 return CalcResult::new_error(Error::NUM, cell, "Out of bounds".to_string());
@@ -202,7 +202,7 @@ impl Model {
         if value < 0 {
             value += HEX_MAX;
         }
-        let result = format!("{value:X}");
+        let result = format!("{:X}", value);
         if let Some(places) = places {
             if value_raw > 0.0 && places < result.len() as i32 {
                 return CalcResult::new_error(Error::NUM, cell, "Out of bounds".to_string());
@@ -242,7 +242,7 @@ impl Model {
         if value < 0 {
             value += OCT_MAX;
         }
-        let result = format!("{value:o}");
+        let result = format!("{:o}", value);
         if let Some(places) = places {
             if value_raw > 0.0 && places < result.len() as i32 {
                 return CalcResult::new_error(Error::NUM, cell, "Out of bounds".to_string());
@@ -301,7 +301,7 @@ impl Model {
         if value < 0 {
             value += 1024;
         }
-        let result = format!("{value:b}");
+        let result = format!("{:b}", value);
         if let Some(places) = places {
             if places <= 0 || (value > 0 && places < result.len() as i32) {
                 return CalcResult::new_error(Error::NUM, cell, "Out of bounds".to_string());
@@ -391,7 +391,7 @@ impl Model {
         if value < 0 {
             value += OCT_MAX;
         }
-        let result = format!("{value:o}");
+        let result = format!("{:o}", value);
         if let Some(places) = places {
             if places <= 0 || (value > 0 && places < result.len() as i32) {
                 return CalcResult::new_error(Error::NUM, cell, "Out of bounds".to_string());
@@ -446,7 +446,7 @@ impl Model {
         if value < 0 {
             value += 1024;
         }
-        let result = format!("{value:b}");
+        let result = format!("{:b}", value);
         if let Some(places) = places {
             if value < 512 && places < result.len() as i32 {
                 return CalcResult::new_error(Error::NUM, cell, "Out of bounds".to_string());
@@ -532,7 +532,7 @@ impl Model {
         if value < 0 {
             value += HEX_MAX;
         }
-        let result = format!("{value:X}");
+        let result = format!("{:X}", value);
         if let Some(places) = places {
             if value < HEX_MAX_HALF && places < result.len() as i32 {
                 return CalcResult::new_error(Error::NUM, cell, "Out of bounds".to_string());

base/src/functions/financial.rs

@@ -231,7 +231,7 @@ impl Model {
                             CalcResult::new_error(
                                 Error::ERROR,
                                 *cell,
-                                format!("Invalid worksheet index: '{sheet}'"),
+                                format!("Invalid worksheet index: '{}'", sheet),
                             )
                         })?
                         .dimension()
@@ -245,7 +245,7 @@ impl Model {
                             CalcResult::new_error(
                                 Error::ERROR,
                                 *cell,
-                                format!("Invalid worksheet index: '{sheet}'"),
+                                format!("Invalid worksheet index: '{}'", sheet),
                             )
                         })?
                         .dimension()

base/src/functions/information.rs

@@ -235,11 +235,6 @@ impl Model {
                 // This cannot happen
                 CalcResult::Number(1.0)
             }
-            CalcResult::Array(_) => CalcResult::Error {
-                error: Error::NIMPL,
-                origin: cell,
-                message: "Arrays not supported yet".to_string(),
-            },
         }
     }
     pub(crate) fn fn_sheet(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
@@ -254,7 +249,7 @@ impl Model {
         // The arg could be a defined name or a table
         // let  = &args[0];
         match &args[0] {
-            Node::DefinedNameKind((name, scope, _)) => {
+            Node::DefinedNameKind((name, scope)) => {
                 // Let's see if it is a defined name
                 if let Some(defined_name) = self
                     .parsed_defined_names

base/src/functions/logical.rs

@@ -161,13 +161,6 @@ impl Model {
                                 CalcResult::Range { .. }
                                 | CalcResult::String { .. }
                                 | CalcResult::EmptyCell => {}
-                                CalcResult::Array(_) => {
-                                    return CalcResult::Error {
-                                        error: Error::NIMPL,
-                                        origin: cell,
-                                        message: "Arrays not supported yet".to_string(),
-                                    }
-                                }
                             }
                             if let (Some(current_result), Some(short_circuit_value)) =
                                 (result, short_circuit_value)
@@ -192,13 +185,6 @@ impl Model {
                 }
                 // References to empty cells are ignored. If all args are ignored the result is #VALUE!
                 CalcResult::EmptyCell => {}
-                CalcResult::Array(_) => {
-                    return CalcResult::Error {
-                        error: Error::NIMPL,
-                        origin: cell,
-                        message: "Arrays not supported yet".to_string(),
-                    }
-                }
             }
 
             if let (Some(current_result), Some(short_circuit_value)) = (result, short_circuit_value)
@@ -246,7 +232,7 @@ impl Model {
         }
         // None of the cases matched so we return the default
         // If there is an even number of args is the last one otherwise is #N/A
-        if args_count.is_multiple_of(2) {
+        if args_count % 2 == 0 {
             return self.evaluate_node_in_context(&args[args_count - 1], cell);
         }
         CalcResult::Error {
@@ -262,7 +248,7 @@ impl Model {
         if args_count < 2 {
             return CalcResult::new_args_number_error(cell);
         }
-        if !args_count.is_multiple_of(2) {
+        if args_count % 2 != 0 {
             // Missing value for last condition
             return CalcResult::new_args_number_error(cell);
         }

base/src/functions/lookup_and_reference.rs

@@ -855,7 +855,7 @@ impl Model {
             if left.row != right.row || left.column != right.column {
                 // FIXME: Implicit intersection or dynamic arrays
                 return CalcResult::Error {
-                    error: Error::NIMPL,
+                    error: Error::ERROR,
                     origin: cell,
                     message: "argument must be a reference to a single cell".to_string(),
                 };

base/src/functions/macros.rs

@@ -1,100 +0,0 @@
-#[macro_export]
-macro_rules! single_number_fn {
-    // The macro takes:
-    //   1) A function name to define (e.g. fn_sin)
-    //   2) The operation to apply (e.g. f64::sin)
-    ($fn_name:ident, $op:expr) => {
-        pub(crate) fn $fn_name(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
-            // 1) Check exactly one argument
-            if args.len() != 1 {
-                return CalcResult::new_args_number_error(cell);
-            }
-            // 2) Try to get a "NumberOrArray"
-            match self.get_number_or_array(&args[0], cell) {
-                // -----------------------------------------
-                // Case A: It's a single number
-                // -----------------------------------------
-                Ok(NumberOrArray::Number(f)) => match $op(f) {
-                    Ok(x) => CalcResult::Number(x),
-                    Err(Error::DIV) => CalcResult::Error {
-                        error: Error::DIV,
-                        origin: cell,
-                        message: "Divide by 0".to_string(),
-                    },
-                    Err(Error::VALUE) => CalcResult::Error {
-                        error: Error::VALUE,
-                        origin: cell,
-                        message: "Invalid number".to_string(),
-                    },
-                    Err(e) => CalcResult::Error {
-                        error: e,
-                        origin: cell,
-                        message: "Unknown error".to_string(),
-                    },
-                },
-
-                // -----------------------------------------
-                // Case B: It's an array, so apply $op
-                // element-by-element.
-                // -----------------------------------------
-                Ok(NumberOrArray::Array(a)) => {
-                    let mut array = Vec::new();
-                    for row in a {
-                        let mut data_row = Vec::with_capacity(row.len());
-                        for value in row {
-                            match value {
-                                // If Boolean, treat as 0.0 or 1.0
-                                ArrayNode::Boolean(b) => {
-                                    let n = if b { 1.0 } else { 0.0 };
-                                    match $op(n) {
-                                        Ok(x) => data_row.push(ArrayNode::Number(x)),
-                                        Err(Error::DIV) => {
-                                            data_row.push(ArrayNode::Error(Error::DIV))
-                                        }
-                                        Err(Error::VALUE) => {
-                                            data_row.push(ArrayNode::Error(Error::VALUE))
-                                        }
-                                        Err(e) => data_row.push(ArrayNode::Error(e)),
-                                    }
-                                }
-                                // If Number, apply directly
-                                ArrayNode::Number(n) => match $op(n) {
-                                    Ok(x) => data_row.push(ArrayNode::Number(x)),
-                                    Err(Error::DIV) => data_row.push(ArrayNode::Error(Error::DIV)),
-                                    Err(Error::VALUE) => {
-                                        data_row.push(ArrayNode::Error(Error::VALUE))
-                                    }
-                                    Err(e) => data_row.push(ArrayNode::Error(e)),
-                                },
-                                // If String, parse to f64 then apply or #VALUE! error
-                                ArrayNode::String(s) => {
-                                    let node = match s.parse::<f64>() {
-                                        Ok(f) => match $op(f) {
-                                            Ok(x) => ArrayNode::Number(x),
-                                            Err(Error::DIV) => ArrayNode::Error(Error::DIV),
-                                            Err(Error::VALUE) => ArrayNode::Error(Error::VALUE),
-                                            Err(e) => ArrayNode::Error(e),
-                                        },
-                                        Err(_) => ArrayNode::Error(Error::VALUE),
-                                    };
-                                    data_row.push(node);
-                                }
-                                // If Error, propagate the error
-                                e @ ArrayNode::Error(_) => {
-                                    data_row.push(e);
-                                }
-                            }
-                        }
-                        array.push(data_row);
-                    }
-                    CalcResult::Array(array)
-                }
-
-                // -----------------------------------------
-                // Case C: It's an Error => just return it
-                // -----------------------------------------
-                Err(err_result) => err_result,
-            }
-        }
-    };
-}

base/src/functions/mathematical.rs

@@ -1,9 +1,5 @@
-use crate::cast::NumberOrArray;
 use crate::constants::{LAST_COLUMN, LAST_ROW};
-use crate::expressions::parser::ArrayNode;
 use crate::expressions::types::CellReferenceIndex;
-use crate::number_format::to_precision;
-use crate::single_number_fn;
 use crate::{
     calc_result::CalcResult, expressions::parser::Node, expressions::token::Error, model::Model,
 };
@@ -173,27 +169,6 @@ impl Model {
                         }
                     }
                 }
-                CalcResult::Array(array) => {
-                    for row in array {
-                        for value in row {
-                            match value {
-                                ArrayNode::Number(value) => {
-                                    result += value;
-                                }
-                                ArrayNode::Error(error) => {
-                                    return CalcResult::Error {
-                                        error,
-                                        origin: cell,
-                                        message: "Error in array".to_string(),
-                                    }
-                                }
-                                _ => {
-                                    // We ignore booleans and strings
-                                }
-                            }
-                        }
-                    }
-                }
                 error @ CalcResult::Error { .. } => return error,
                 _ => {
                     // We ignore booleans and strings
@@ -312,7 +287,7 @@ impl Model {
             return CalcResult::new_args_number_error(cell);
         }
         let value = match self.get_number(&args[0], cell) {
-            Ok(f) => to_precision(f, 15),
+            Ok(f) => f,
             Err(s) => return s,
         };
         let number_of_digits = match self.get_number(&args[1], cell) {
@@ -328,13 +303,12 @@ impl Model {
         let scale = 10.0_f64.powf(number_of_digits);
         CalcResult::Number((value * scale).round() / scale)
     }
-
     pub(crate) fn fn_roundup(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
         if args.len() != 2 {
             return CalcResult::new_args_number_error(cell);
         }
         let value = match self.get_number(&args[0], cell) {
-            Ok(f) => to_precision(f, 15),
+            Ok(f) => f,
             Err(s) => return s,
         };
         let number_of_digits = match self.get_number(&args[1], cell) {
@@ -354,13 +328,12 @@ impl Model {
             CalcResult::Number((value * scale).floor() / scale)
         }
     }
-
     pub(crate) fn fn_rounddown(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
         if args.len() != 2 {
             return CalcResult::new_args_number_error(cell);
         }
         let value = match self.get_number(&args[0], cell) {
-            Ok(f) => to_precision(f, 15),
+            Ok(f) => f,
             Err(s) => return s,
         };
         let number_of_digits = match self.get_number(&args[1], cell) {
@@ -381,39 +354,187 @@ impl Model {
         }
     }
 
-    single_number_fn!(fn_log10, |f| if f <= 0.0 {
+    pub(crate) fn fn_sin(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
-        Err(Error::NUM)
+        if args.len() != 1 {
-    } else {
+            return CalcResult::new_args_number_error(cell);
-        Ok(f64::log10(f))
+        }
-    });
+        let value = match self.get_number(&args[0], cell) {
-    single_number_fn!(fn_ln, |f| if f <= 0.0 {
+            Ok(f) => f,
-        Err(Error::NUM)
+            Err(s) => return s,
-    } else {
+        };
-        Ok(f64::ln(f))
+        let result = value.sin();
-    });
+        CalcResult::Number(result)
-    single_number_fn!(fn_sin, |f| Ok(f64::sin(f)));
+    }
-    single_number_fn!(fn_cos, |f| Ok(f64::cos(f)));
+    pub(crate) fn fn_cos(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
-    single_number_fn!(fn_tan, |f| Ok(f64::tan(f)));
+        if args.len() != 1 {
-    single_number_fn!(fn_sinh, |f| Ok(f64::sinh(f)));
+            return CalcResult::new_args_number_error(cell);
-    single_number_fn!(fn_cosh, |f| Ok(f64::cosh(f)));
+        }
-    single_number_fn!(fn_tanh, |f| Ok(f64::tanh(f)));
+        let value = match self.get_number(&args[0], cell) {
-    single_number_fn!(fn_asin, |f| Ok(f64::asin(f)));
+            Ok(f) => f,
-    single_number_fn!(fn_acos, |f| Ok(f64::acos(f)));
+            Err(s) => return s,
-    single_number_fn!(fn_atan, |f| Ok(f64::atan(f)));
+        };
-    single_number_fn!(fn_asinh, |f| Ok(f64::asinh(f)));
+        let result = value.cos();
-    single_number_fn!(fn_acosh, |f| Ok(f64::acosh(f)));
+        CalcResult::Number(result)
-    single_number_fn!(fn_atanh, |f| Ok(f64::atanh(f)));
+    }
-    single_number_fn!(fn_abs, |f| Ok(f64::abs(f)));
+
-    single_number_fn!(fn_sqrt, |f| if f < 0.0 {
+    pub(crate) fn fn_tan(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
-        Err(Error::NUM)
+        if args.len() != 1 {
-    } else {
+            return CalcResult::new_args_number_error(cell);
-        Ok(f64::sqrt(f))
+        }
-    });
+        let value = match self.get_number(&args[0], cell) {
-    single_number_fn!(fn_sqrtpi, |f: f64| if f < 0.0 {
+            Ok(f) => f,
-        Err(Error::NUM)
+            Err(s) => return s,
-    } else {
+        };
-        Ok((f * PI).sqrt())
+        let result = value.tan();
-    });
+        CalcResult::Number(result)
+    }
+
+    pub(crate) fn fn_sinh(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
+        if args.len() != 1 {
+            return CalcResult::new_args_number_error(cell);
+        }
+        let value = match self.get_number(&args[0], cell) {
+            Ok(f) => f,
+            Err(s) => return s,
+        };
+        let result = value.sinh();
+        CalcResult::Number(result)
+    }
+    pub(crate) fn fn_cosh(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
+        if args.len() != 1 {
+            return CalcResult::new_args_number_error(cell);
+        }
+        let value = match self.get_number(&args[0], cell) {
+            Ok(f) => f,
+            Err(s) => return s,
+        };
+        let result = value.cosh();
+        CalcResult::Number(result)
+    }
+
+    pub(crate) fn fn_tanh(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
+        if args.len() != 1 {
+            return CalcResult::new_args_number_error(cell);
+        }
+        let value = match self.get_number(&args[0], cell) {
+            Ok(f) => f,
+            Err(s) => return s,
+        };
+        let result = value.tanh();
+        CalcResult::Number(result)
+    }
+
+    pub(crate) fn fn_asin(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
+        if args.len() != 1 {
+            return CalcResult::new_args_number_error(cell);
+        }
+        let value = match self.get_number(&args[0], cell) {
+            Ok(f) => f,
+            Err(s) => return s,
+        };
+        let result = value.asin();
+        if result.is_nan() || result.is_infinite() {
+            return CalcResult::Error {
+                error: Error::NUM,
+                origin: cell,
+                message: "Invalid argument for ASIN".to_string(),
+            };
+        }
+        CalcResult::Number(result)
+    }
+    pub(crate) fn fn_acos(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
+        if args.len() != 1 {
+            return CalcResult::new_args_number_error(cell);
+        }
+        let value = match self.get_number(&args[0], cell) {
+            Ok(f) => f,
+            Err(s) => return s,
+        };
+        let result = value.acos();
+        if result.is_nan() || result.is_infinite() {
+            return CalcResult::Error {
+                error: Error::NUM,
+                origin: cell,
+                message: "Invalid argument for COS".to_string(),
+            };
+        }
+        CalcResult::Number(result)
+    }
+
+    pub(crate) fn fn_atan(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
+        if args.len() != 1 {
+            return CalcResult::new_args_number_error(cell);
+        }
+        let value = match self.get_number(&args[0], cell) {
+            Ok(f) => f,
+            Err(s) => return s,
+        };
+        let result = value.atan();
+        if result.is_nan() || result.is_infinite() {
+            return CalcResult::Error {
+                error: Error::NUM,
+                origin: cell,
+                message: "Invalid argument for ATAN".to_string(),
+            };
+        }
+        CalcResult::Number(result)
+    }
+
+    pub(crate) fn fn_asinh(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
+        if args.len() != 1 {
+            return CalcResult::new_args_number_error(cell);
+        }
+        let value = match self.get_number(&args[0], cell) {
+            Ok(f) => f,
+            Err(s) => return s,
+        };
+        let result = value.asinh();
+        if result.is_nan() || result.is_infinite() {
+            return CalcResult::Error {
+                error: Error::NUM,
+                origin: cell,
+                message: "Invalid argument for ASINH".to_string(),
+            };
+        }
+        CalcResult::Number(result)
+    }
+    pub(crate) fn fn_acosh(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
+        if args.len() != 1 {
+            return CalcResult::new_args_number_error(cell);
+        }
+        let value = match self.get_number(&args[0], cell) {
+            Ok(f) => f,
+            Err(s) => return s,
+        };
+        let result = value.acosh();
+        if result.is_nan() || result.is_infinite() {
+            return CalcResult::Error {
+                error: Error::NUM,
+                origin: cell,
+                message: "Invalid argument for ACOSH".to_string(),
+            };
+        }
+        CalcResult::Number(result)
+    }
+
+    pub(crate) fn fn_atanh(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
+        if args.len() != 1 {
+            return CalcResult::new_args_number_error(cell);
+        }
+        let value = match self.get_number(&args[0], cell) {
+            Ok(f) => f,
+            Err(s) => return s,
+        };
+        let result = value.atanh();
+        if result.is_nan() || result.is_infinite() {
+            return CalcResult::Error {
+                error: Error::NUM,
+                origin: cell,
+                message: "Invalid argument for ATANH".to_string(),
+            };
+        }
+        CalcResult::Number(result)
+    }
 
     pub(crate) fn fn_pi(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
         if !args.is_empty() {
@@ -422,6 +543,53 @@ impl Model {
         CalcResult::Number(PI)
     }
 
+    pub(crate) fn fn_abs(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
+        if args.len() != 1 {
+            return CalcResult::new_args_number_error(cell);
+        }
+        let value = match self.get_number(&args[0], cell) {
+            Ok(f) => f,
+            Err(s) => return s,
+        };
+        CalcResult::Number(value.abs())
+    }
+
+    pub(crate) fn fn_sqrtpi(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
+        if args.len() != 1 {
+            return CalcResult::new_args_number_error(cell);
+        }
+        let value = match self.get_number(&args[0], cell) {
+            Ok(f) => f,
+            Err(s) => return s,
+        };
+        if value < 0.0 {
+            return CalcResult::Error {
+                error: Error::NUM,
+                origin: cell,
+                message: "Argument of SQRTPI should be >= 0".to_string(),
+            };
+        }
+        CalcResult::Number((value * PI).sqrt())
+    }
+
+    pub(crate) fn fn_sqrt(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
+        if args.len() != 1 {
+            return CalcResult::new_args_number_error(cell);
+        }
+        let value = match self.get_number(&args[0], cell) {
+            Ok(f) => f,
+            Err(s) => return s,
+        };
+        if value < 0.0 {
+            return CalcResult::Error {
+                error: Error::NUM,
+                origin: cell,
+                message: "Argument of SQRT should be >= 0".to_string(),
+            };
+        }
+        CalcResult::Number(value.sqrt())
+    }
+
     pub(crate) fn fn_atan2(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
         if args.len() != 2 {
             return CalcResult::new_args_number_error(cell);
@@ -444,47 +612,6 @@ impl Model {
         CalcResult::Number(f64::atan2(y, x))
     }
 
-    pub(crate) fn fn_log(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
-        let n_args = args.len();
-        if !(1..=2).contains(&n_args) {
-            return CalcResult::new_args_number_error(cell);
-        }
-        let x = match self.get_number(&args[0], cell) {
-            Ok(f) => f,
-            Err(s) => return s,
-        };
-        let y = if n_args == 1 {
-            10.0
-        } else {
-            match self.get_number(&args[1], cell) {
-                Ok(f) => f,
-                Err(s) => return s,
-            }
-        };
-        if x <= 0.0 {
-            return CalcResult::Error {
-                error: Error::NUM,
-                origin: cell,
-                message: "Number must be positive".to_string(),
-            };
-        }
-        if y == 1.0 {
-            return CalcResult::Error {
-                error: Error::DIV,
-                origin: cell,
-                message: "Logarithm base cannot be 1".to_string(),
-            };
-        }
-        if y <= 0.0 {
-            return CalcResult::Error {
-                error: Error::NUM,
-                origin: cell,
-                message: "Logarithm base must be positive".to_string(),
-            };
-        }
-        CalcResult::Number(f64::log(x, y))
-    }
-
     pub(crate) fn fn_power(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
         if args.len() != 2 {
             return CalcResult::new_args_number_error(cell);

base/src/functions/mod.rs

@@ -15,7 +15,6 @@ mod financial_util;
 mod information;
 mod logical;
 mod lookup_and_reference;
-mod macros;
 mod mathematical;
 mod statistical;
 mod subtotal;
@@ -54,9 +53,6 @@ pub enum Function {
     Columns,
     Cos,
     Cosh,
-    Log,
-    Log10,
-    Ln,
     Max,
     Min,
     Pi,
@@ -148,30 +144,13 @@ pub enum Function {
 
     // Date and time
     Date,
-    Datedif,
-    Datevalue,
     Day,
     Edate,
     Eomonth,
     Month,
-    Time,
-    Timevalue,
-    Hour,
-    Minute,
-    Second,
     Now,
     Today,
     Year,
-    Networkdays,
-    NetworkdaysIntl,
-    Days,
-    Days360,
-    Weekday,
-    Weeknum,
-    Workday,
-    WorkdayIntl,
-    Yearfrac,
-    Isoweeknum,
 
     // Financial
     Cumipmt,
@@ -270,7 +249,7 @@ pub enum Function {
 }
 
 impl Function {
-    pub fn into_iter() -> IntoIter<Function, 215> {
+    pub fn into_iter() -> IntoIter<Function, 195> {
         [
             Function::And,
             Function::False,
@@ -297,9 +276,6 @@ impl Function {
             Function::Atanh,
             Function::Abs,
             Function::Pi,
-            Function::Ln,
-            Function::Log,
-            Function::Log10,
             Function::Sqrt,
             Function::Sqrtpi,
             Function::Atan2,
@@ -379,26 +355,9 @@ impl Function {
             Function::Month,
             Function::Eomonth,
             Function::Date,
-            Function::Datedif,
-            Function::Datevalue,
             Function::Edate,
-            Function::Networkdays,
-            Function::NetworkdaysIntl,
-            Function::Time,
-            Function::Timevalue,
-            Function::Hour,
-            Function::Minute,
-            Function::Second,
             Function::Today,
             Function::Now,
-            Function::Days,
-            Function::Days360,
-            Function::Weekday,
-            Function::Weeknum,
-            Function::Workday,
-            Function::WorkdayIntl,
-            Function::Yearfrac,
-            Function::Isoweeknum,
             Function::Pmt,
             Function::Pv,
             Function::Rate,
@@ -528,7 +487,6 @@ impl Function {
             Function::Isformula => "_xlfn.ISFORMULA".to_string(),
             Function::Sheet => "_xlfn.SHEET".to_string(),
             Function::Formulatext => "_xlfn.FORMULATEXT".to_string(),
-            Function::Isoweeknum => "_xlfn.ISOWEEKNUM".to_string(),
             _ => self.to_string(),
         }
     }
@@ -575,10 +533,6 @@ impl Function {
             "POWER" => Some(Function::Power),
             "ATAN2" => Some(Function::Atan2),
 
-            "LN" => Some(Function::Ln),
-            "LOG" => Some(Function::Log),
-            "LOG10" => Some(Function::Log10),
-
             "MAX" => Some(Function::Max),
             "MIN" => Some(Function::Min),
             "PRODUCT" => Some(Function::Product),
@@ -666,26 +620,9 @@ impl Function {
             "EOMONTH" => Some(Function::Eomonth),
             "MONTH" => Some(Function::Month),
             "DATE" => Some(Function::Date),
-            "DATEDIF" => Some(Function::Datedif),
-            "DATEVALUE" => Some(Function::Datevalue),
             "EDATE" => Some(Function::Edate),
-            "NETWORKDAYS" => Some(Function::Networkdays),
-            "NETWORKDAYS.INTL" => Some(Function::NetworkdaysIntl),
-            "TIME" => Some(Function::Time),
-            "TIMEVALUE" => Some(Function::Timevalue),
-            "HOUR" => Some(Function::Hour),
-            "MINUTE" => Some(Function::Minute),
-            "SECOND" => Some(Function::Second),
             "TODAY" => Some(Function::Today),
             "NOW" => Some(Function::Now),
-            "DAYS" | "_XLFN.DAYS" => Some(Function::Days),
-            "DAYS360" => Some(Function::Days360),
-            "WEEKDAY" => Some(Function::Weekday),
-            "WEEKNUM" => Some(Function::Weeknum),
-            "WORKDAY" => Some(Function::Workday),
-            "WORKDAY.INTL" => Some(Function::WorkdayIntl),
-            "YEARFRAC" => Some(Function::Yearfrac),
-            "ISOWEEKNUM" | "_XLFN.ISOWEEKNUM" => Some(Function::Isoweeknum),
             // Financial
             "PMT" => Some(Function::Pmt),
             "PV" => Some(Function::Pv),
@@ -796,9 +733,6 @@ impl fmt::Display for Function {
             Function::Switch => write!(f, "SWITCH"),
             Function::True => write!(f, "TRUE"),
             Function::Xor => write!(f, "XOR"),
-            Function::Log => write!(f, "LOG"),
-            Function::Log10 => write!(f, "LOG10"),
-            Function::Ln => write!(f, "LN"),
             Function::Sin => write!(f, "SIN"),
             Function::Cos => write!(f, "COS"),
             Function::Tan => write!(f, "TAN"),
@@ -893,26 +827,9 @@ impl fmt::Display for Function {
             Function::Month => write!(f, "MONTH"),
             Function::Eomonth => write!(f, "EOMONTH"),
             Function::Date => write!(f, "DATE"),
-            Function::Datedif => write!(f, "DATEDIF"),
-            Function::Datevalue => write!(f, "DATEVALUE"),
             Function::Edate => write!(f, "EDATE"),
-            Function::Networkdays => write!(f, "NETWORKDAYS"),
-            Function::NetworkdaysIntl => write!(f, "NETWORKDAYS.INTL"),
-            Function::Time => write!(f, "TIME"),
-            Function::Timevalue => write!(f, "TIMEVALUE"),
-            Function::Hour => write!(f, "HOUR"),
-            Function::Minute => write!(f, "MINUTE"),
-            Function::Second => write!(f, "SECOND"),
             Function::Today => write!(f, "TODAY"),
             Function::Now => write!(f, "NOW"),
-            Function::Days => write!(f, "DAYS"),
-            Function::Days360 => write!(f, "DAYS360"),
-            Function::Weekday => write!(f, "WEEKDAY"),
-            Function::Weeknum => write!(f, "WEEKNUM"),
-            Function::Workday => write!(f, "WORKDAY"),
-            Function::WorkdayIntl => write!(f, "WORKDAY.INTL"),
-            Function::Yearfrac => write!(f, "YEARFRAC"),
-            Function::Isoweeknum => write!(f, "ISOWEEKNUM"),
             Function::Pmt => write!(f, "PMT"),
             Function::Pv => write!(f, "PV"),
             Function::Rate => write!(f, "RATE"),
@@ -1043,9 +960,6 @@ impl Model {
             Function::True => self.fn_true(args, cell),
             Function::Xor => self.fn_xor(args, cell),
             // Math and trigonometry
-            Function::Log => self.fn_log(args, cell),
-            Function::Log10 => self.fn_log10(args, cell),
-            Function::Ln => self.fn_ln(args, cell),
             Function::Sin => self.fn_sin(args, cell),
             Function::Cos => self.fn_cos(args, cell),
             Function::Tan => self.fn_tan(args, cell),
@@ -1151,26 +1065,9 @@ impl Model {
             Function::Eomonth => self.fn_eomonth(args, cell),
             Function::Month => self.fn_month(args, cell),
             Function::Date => self.fn_date(args, cell),
-            Function::Datedif => self.fn_datedif(args, cell),
-            Function::Datevalue => self.fn_datevalue(args, cell),
             Function::Edate => self.fn_edate(args, cell),
-            Function::Networkdays => self.fn_networkdays(args, cell),
-            Function::NetworkdaysIntl => self.fn_networkdays_intl(args, cell),
-            Function::Time => self.fn_time(args, cell),
-            Function::Timevalue => self.fn_timevalue(args, cell),
-            Function::Hour => self.fn_hour(args, cell),
-            Function::Minute => self.fn_minute(args, cell),
-            Function::Second => self.fn_second(args, cell),
             Function::Today => self.fn_today(args, cell),
             Function::Now => self.fn_now(args, cell),
-            Function::Days => self.fn_days(args, cell),
-            Function::Days360 => self.fn_days360(args, cell),
-            Function::Weekday => self.fn_weekday(args, cell),
-            Function::Weeknum => self.fn_weeknum(args, cell),
-            Function::Workday => self.fn_workday(args, cell),
-            Function::WorkdayIntl => self.fn_workday_intl(args, cell),
-            Function::Yearfrac => self.fn_yearfrac(args, cell),
-            Function::Isoweeknum => self.fn_isoweeknum(args, cell),
             // Financial
             Function::Pmt => self.fn_pmt(args, cell),
             Function::Pv => self.fn_pv(args, cell),
@@ -1316,7 +1213,7 @@ mod tests {
         }
         // We make a list with their functions names, but we escape ".": ERROR.TYPE => ERRORTYPE
         let iter_list = Function::into_iter()
-            .map(|f| format!("{f}").replace('.', ""))
+            .map(|f| format!("{}", f).replace('.', ""))
             .collect::<Vec<_>>();
 
         let len = iter_list.len();

base/src/functions/statistical.rs

@@ -134,13 +134,6 @@ impl Model {
                                     );
                                 }
                                 CalcResult::EmptyCell | CalcResult::EmptyArg => {}
-                                CalcResult::Array(_) => {
-                                    return CalcResult::Error {
-                                        error: Error::NIMPL,
-                                        origin: cell,
-                                        message: "Arrays not supported yet".to_string(),
-                                    }
-                                }
                             }
                         }
                     }
@@ -172,13 +165,6 @@ impl Model {
                 }
                 error @ CalcResult::Error { .. } => return error,
                 CalcResult::EmptyCell | CalcResult::EmptyArg => {}
-                CalcResult::Array(_) => {
-                    return CalcResult::Error {
-                        error: Error::NIMPL,
-                        origin: cell,
-                        message: "Arrays not supported yet".to_string(),
-                    }
-                }
             };
         }
         if count == 0.0 {
@@ -350,7 +336,7 @@ impl Model {
     // FIXME: This function shares a lot of code with apply_ifs. Can we merge them?
     pub(crate) fn fn_countifs(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
         let args_count = args.len();
-        if args_count < 2 || !args_count.is_multiple_of(2) {
+        if args_count < 2 || args_count % 2 == 1 {
             return CalcResult::new_args_number_error(cell);
         }
 
@@ -476,7 +462,7 @@ impl Model {
         F: FnMut(f64),
     {
         let args_count = args.len();
-        if args_count < 3 || args_count.is_multiple_of(2) {
+        if args_count < 3 || args_count % 2 == 0 {
             return Err(CalcResult::new_args_number_error(cell));
         }
         let arg_0 = self.evaluate_node_in_context(&args[0], cell);

base/src/functions/subtotal.rs

@@ -182,13 +182,6 @@ impl Model {
                             }
                         }
                         CalcResult::EmptyCell | CalcResult::EmptyArg => result.push(0.0),
-                        CalcResult::Array(_) => {
-                            return Err(CalcResult::Error {
-                                error: Error::NIMPL,
-                                origin: cell,
-                                message: "Arrays not supported yet".to_string(),
-                            })
-                        }
                     }
                 }
             }
@@ -433,13 +426,6 @@ impl Model {
                         | CalcResult::Number(_)
                         | CalcResult::Boolean(_)
                         | CalcResult::Error { .. } => counta += 1,
-                        CalcResult::Array(_) => {
-                            return CalcResult::Error {
-                                error: Error::NIMPL,
-                                origin: cell,
-                                message: "Arrays not supported yet".to_string(),
-                            }
-                        }
                     }
                 }
             }

base/src/functions/text.rs

@@ -55,14 +55,14 @@ impl Model {
         let mut result = "".to_string();
         for arg in args {
             match self.evaluate_node_in_context(arg, cell) {
-                CalcResult::String(value) => result = format!("{result}{value}"),
+                CalcResult::String(value) => result = format!("{}{}", result, value),
-                CalcResult::Number(value) => result = format!("{result}{value}"),
+                CalcResult::Number(value) => result = format!("{}{}", result, value),
                 CalcResult::EmptyCell | CalcResult::EmptyArg => {}
                 CalcResult::Boolean(value) => {
                     if value {
-                        result = format!("{result}TRUE");
+                        result = format!("{}TRUE", result);
                     } else {
-                        result = format!("{result}FALSE");
+                        result = format!("{}FALSE", result);
                     }
                 }
                 error @ CalcResult::Error { .. } => return error,
@@ -82,37 +82,25 @@ impl Model {
                                 column,
                             }) {
                                 CalcResult::String(value) => {
-                                    result = format!("{result}{value}");
+                                    result = format!("{}{}", result, value);
+                                }
+                                CalcResult::Number(value) => {
+                                    result = format!("{}{}", result, value)
                                 }
-                                CalcResult::Number(value) => result = format!("{result}{value}"),
                                 CalcResult::Boolean(value) => {
                                     if value {
-                                        result = format!("{result}TRUE");
+                                        result = format!("{}TRUE", result);
                                     } else {
-                                        result = format!("{result}FALSE");
+                                        result = format!("{}FALSE", result);
                                     }
                                 }
                                 error @ CalcResult::Error { .. } => return error,
                                 CalcResult::EmptyCell | CalcResult::EmptyArg => {}
                                 CalcResult::Range { .. } => {}
-                                CalcResult::Array(_) => {
-                                    return CalcResult::Error {
-                                        error: Error::NIMPL,
-                                        origin: cell,
-                                        message: "Arrays not supported yet".to_string(),
                             }
                         }
                     }
                 }
-                    }
-                }
-                CalcResult::Array(_) => {
-                    return CalcResult::Error {
-                        error: Error::NIMPL,
-                        origin: cell,
-                        message: "Arrays not supported yet".to_string(),
-                    }
-                }
             };
         }
         CalcResult::String(result)
@@ -137,13 +125,6 @@ impl Model {
                     };
                 }
                 CalcResult::EmptyCell | CalcResult::EmptyArg => 0.0,
-                CalcResult::Array(_) => {
-                    return CalcResult::Error {
-                        error: Error::NIMPL,
-                        origin: cell,
-                        message: "Arrays not supported yet".to_string(),
-                    }
-                }
             };
             let format_code = match self.get_string(&args[1], cell) {
                 Ok(s) => s,
@@ -280,7 +261,7 @@ impl Model {
     pub(crate) fn fn_len(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
         if args.len() == 1 {
             let s = match self.evaluate_node_in_context(&args[0], cell) {
-                CalcResult::Number(v) => format!("{v}"),
+                CalcResult::Number(v) => format!("{}", v),
                 CalcResult::String(v) => v,
                 CalcResult::Boolean(b) => {
                     if b {
@@ -299,13 +280,6 @@ impl Model {
                     };
                 }
                 CalcResult::EmptyCell | CalcResult::EmptyArg => "".to_string(),
-                CalcResult::Array(_) => {
-                    return CalcResult::Error {
-                        error: Error::NIMPL,
-                        origin: cell,
-                        message: "Arrays not supported yet".to_string(),
-                    }
-                }
             };
             return CalcResult::Number(s.chars().count() as f64);
         }
@@ -315,7 +289,7 @@ impl Model {
     pub(crate) fn fn_trim(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
         if args.len() == 1 {
             let s = match self.evaluate_node_in_context(&args[0], cell) {
-                CalcResult::Number(v) => format!("{v}"),
+                CalcResult::Number(v) => format!("{}", v),
                 CalcResult::String(v) => v,
                 CalcResult::Boolean(b) => {
                     if b {
@@ -334,13 +308,6 @@ impl Model {
                     };
                 }
                 CalcResult::EmptyCell | CalcResult::EmptyArg => "".to_string(),
-                CalcResult::Array(_) => {
-                    return CalcResult::Error {
-                        error: Error::NIMPL,
-                        origin: cell,
-                        message: "Arrays not supported yet".to_string(),
-                    }
-                }
             };
             return CalcResult::String(s.trim().to_owned());
         }
@@ -350,7 +317,7 @@ impl Model {
     pub(crate) fn fn_lower(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
         if args.len() == 1 {
             let s = match self.evaluate_node_in_context(&args[0], cell) {
-                CalcResult::Number(v) => format!("{v}"),
+                CalcResult::Number(v) => format!("{}", v),
                 CalcResult::String(v) => v,
                 CalcResult::Boolean(b) => {
                     if b {
@@ -369,13 +336,6 @@ impl Model {
                     };
                 }
                 CalcResult::EmptyCell | CalcResult::EmptyArg => "".to_string(),
-                CalcResult::Array(_) => {
-                    return CalcResult::Error {
-                        error: Error::NIMPL,
-                        origin: cell,
-                        message: "Arrays not supported yet".to_string(),
-                    }
-                }
             };
             return CalcResult::String(s.to_lowercase());
         }
@@ -385,7 +345,7 @@ impl Model {
     pub(crate) fn fn_unicode(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
         if args.len() == 1 {
             let s = match self.evaluate_node_in_context(&args[0], cell) {
-                CalcResult::Number(v) => format!("{v}"),
+                CalcResult::Number(v) => format!("{}", v),
                 CalcResult::String(v) => v,
                 CalcResult::Boolean(b) => {
                     if b {
@@ -410,13 +370,6 @@ impl Model {
                         message: "Empty cell".to_string(),
                     }
                 }
-                CalcResult::Array(_) => {
-                    return CalcResult::Error {
-                        error: Error::NIMPL,
-                        origin: cell,
-                        message: "Arrays not supported yet".to_string(),
-                    }
-                }
             };
 
             match s.chars().next() {
@@ -439,7 +392,7 @@ impl Model {
     pub(crate) fn fn_upper(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
         if args.len() == 1 {
             let s = match self.evaluate_node_in_context(&args[0], cell) {
-                CalcResult::Number(v) => format!("{v}"),
+                CalcResult::Number(v) => format!("{}", v),
                 CalcResult::String(v) => v,
                 CalcResult::Boolean(b) => {
                     if b {
@@ -458,13 +411,6 @@ impl Model {
                     };
                 }
                 CalcResult::EmptyCell | CalcResult::EmptyArg => "".to_string(),
-                CalcResult::Array(_) => {
-                    return CalcResult::Error {
-                        error: Error::NIMPL,
-                        origin: cell,
-                        message: "Arrays not supported yet".to_string(),
-                    }
-                }
             };
             return CalcResult::String(s.to_uppercase());
         }
@@ -476,7 +422,7 @@ impl Model {
             return CalcResult::new_args_number_error(cell);
         }
         let s = match self.evaluate_node_in_context(&args[0], cell) {
-            CalcResult::Number(v) => format!("{v}"),
+            CalcResult::Number(v) => format!("{}", v),
             CalcResult::String(v) => v,
             CalcResult::Boolean(b) => {
                 if b {
@@ -495,13 +441,6 @@ impl Model {
                 };
             }
             CalcResult::EmptyCell | CalcResult::EmptyArg => "".to_string(),
-            CalcResult::Array(_) => {
-                return CalcResult::Error {
-                    error: Error::NIMPL,
-                    origin: cell,
-                    message: "Arrays not supported yet".to_string(),
-                }
-            }
         };
         let num_chars = if args.len() == 2 {
             match self.evaluate_node_in_context(&args[1], cell) {
@@ -532,13 +471,6 @@ impl Model {
                     };
                 }
                 CalcResult::EmptyCell | CalcResult::EmptyArg => 0,
-                CalcResult::Array(_) => {
-                    return CalcResult::Error {
-                        error: Error::NIMPL,
-                        origin: cell,
-                        message: "Arrays not supported yet".to_string(),
-                    }
-                }
             }
         } else {
             1
@@ -558,7 +490,7 @@ impl Model {
             return CalcResult::new_args_number_error(cell);
         }
         let s = match self.evaluate_node_in_context(&args[0], cell) {
-            CalcResult::Number(v) => format!("{v}"),
+            CalcResult::Number(v) => format!("{}", v),
             CalcResult::String(v) => v,
             CalcResult::Boolean(b) => {
                 if b {
@@ -577,13 +509,6 @@ impl Model {
                 };
             }
             CalcResult::EmptyCell | CalcResult::EmptyArg => "".to_string(),
-            CalcResult::Array(_) => {
-                return CalcResult::Error {
-                    error: Error::NIMPL,
-                    origin: cell,
-                    message: "Arrays not supported yet".to_string(),
-                }
-            }
         };
         let num_chars = if args.len() == 2 {
             match self.evaluate_node_in_context(&args[1], cell) {
@@ -614,13 +539,6 @@ impl Model {
                     };
                 }
                 CalcResult::EmptyCell | CalcResult::EmptyArg => 0,
-                CalcResult::Array(_) => {
-                    return CalcResult::Error {
-                        error: Error::NIMPL,
-                        origin: cell,
-                        message: "Arrays not supported yet".to_string(),
-                    }
-                }
             }
         } else {
             1
@@ -640,7 +558,7 @@ impl Model {
             return CalcResult::new_args_number_error(cell);
         }
         let s = match self.evaluate_node_in_context(&args[0], cell) {
-            CalcResult::Number(v) => format!("{v}"),
+            CalcResult::Number(v) => format!("{}", v),
             CalcResult::String(v) => v,
             CalcResult::Boolean(b) => {
                 if b {
@@ -659,13 +577,6 @@ impl Model {
                 };
             }
             CalcResult::EmptyCell | CalcResult::EmptyArg => "".to_string(),
-            CalcResult::Array(_) => {
-                return CalcResult::Error {
-                    error: Error::NIMPL,
-                    origin: cell,
-                    message: "Arrays not supported yet".to_string(),
-                }
-            }
         };
         let start_num = match self.evaluate_node_in_context(&args[1], cell) {
             CalcResult::Number(v) => {
@@ -730,13 +641,6 @@ impl Model {
                 };
             }
             CalcResult::EmptyCell | CalcResult::EmptyArg => 0,
-            CalcResult::Array(_) => {
-                return CalcResult::Error {
-                    error: Error::NIMPL,
-                    origin: cell,
-                    message: "Arrays not supported yet".to_string(),
-                }
-            }
         };
         let mut result = "".to_string();
         let mut count: usize = 0;
@@ -1079,13 +983,6 @@ impl Model {
                                 }
                                 error @ CalcResult::Error { .. } => return error,
                                 CalcResult::EmptyArg | CalcResult::Range { .. } => {}
-                                CalcResult::Array(_) => {
-                                    return CalcResult::Error {
-                                        error: Error::NIMPL,
-                                        origin: cell,
-                                        message: "Arrays not supported yet".to_string(),
-                                    }
-                                }
                             }
                         }
                     }
@@ -1105,13 +1002,6 @@ impl Model {
                     }
                 }
                 CalcResult::EmptyArg => {}
-                CalcResult::Array(_) => {
-                    return CalcResult::Error {
-                        error: Error::NIMPL,
-                        origin: cell,
-                        message: "Arrays not supported yet".to_string(),
-                    }
-                }
             };
         }
         let result = values.join(&delimiter);
@@ -1235,11 +1125,6 @@ impl Model {
                 }
             }
             CalcResult::EmptyCell | CalcResult::EmptyArg => CalcResult::Number(0.0),
-            CalcResult::Array(_) => CalcResult::Error {
-                error: Error::NIMPL,
-                origin: cell,
-                message: "Arrays not supported yet".to_string(),
-            },
         }
     }
 

base/src/functions/util.rs

@@ -110,7 +110,7 @@ pub(crate) fn from_wildcard_to_regex(
 
     // And we have a valid Perl regex! (As Kim Kardashian said before me: "I know, right?")
     if exact {
-        return regex::Regex::new(&format!("^{reg}$"));
+        return regex::Regex::new(&format!("^{}$", reg));
     }
     regex::Regex::new(reg)
 }
@@ -393,8 +393,10 @@ pub(crate) fn build_criteria<'a>(value: &'a CalcResult) -> Box<dyn Fn(&CalcResul
             // An error will match an error (never a string that is an error)
             Box::new(move |x| result_is_equal_to_error(x, &error.to_string()))
         }
-        CalcResult::Range { left: _, right: _ } => Box::new(move |_x| false),
+        CalcResult::Range { left: _, right: _ } => {
-        CalcResult::Array(_) => Box::new(move |_x| false),
+            // TODO: Implicit Intersection
+            Box::new(move |_x| false)
+        }
         CalcResult::EmptyCell | CalcResult::EmptyArg => Box::new(result_is_equal_to_empty),
     }
 }

base/src/language/mod.rs

@@ -1,6 +1,7 @@
-use std::{collections::HashMap, sync::OnceLock};
+use std::collections::HashMap;
 
 use bitcode::{Decode, Encode};
+use once_cell::sync::Lazy;
 
 #[derive(Encode, Decode, Clone)]
 pub struct Booleans {
@@ -30,17 +31,14 @@ pub struct Language {
     pub errors: Errors,
 }
 
-static LANGUAGES: OnceLock<HashMap<String, Language>> = OnceLock::new();
-
 #[allow(clippy::expect_used)]
-fn get_languages() -> &'static HashMap<String, Language> {
+static LANGUAGES: Lazy<HashMap<String, Language>> = Lazy::new(|| {
-    LANGUAGES.get_or_init(|| {
     bitcode::decode(include_bytes!("language.bin")).expect("Failed parsing language file")
-    })
+});
-}
 
 pub fn get_language(id: &str) -> Result<&Language, String> {
-    get_languages()
+    let language = LANGUAGES
         .get(id)
-        .ok_or_else(|| format!("Language is not supported: '{id}'"))
+        .ok_or(format!("Language is not supported: '{}'", id))?;
+    Ok(language)
 }

base/src/lib.rs

@@ -39,9 +39,9 @@ pub mod types;
 pub mod worksheet;
 
 mod actions;
-mod arithmetic;
 mod cast;
 mod constants;
+mod diffs;
 mod functions;
 mod implicit_intersection;
 mod model;

base/src/locale/mod.rs

@@ -1,6 +1,7 @@
-use std::{collections::HashMap, sync::OnceLock};
-
 use bitcode::{Decode, Encode};
+use once_cell::sync::Lazy;
+
+use std::collections::HashMap;
 
 #[derive(Encode, Decode, Clone)]
 pub struct Locale {
@@ -64,17 +65,12 @@ pub struct DecimalFormats {
     pub standard: String,
 }
 
-static LOCALES: OnceLock<HashMap<String, Locale>> = OnceLock::new();
-
 #[allow(clippy::expect_used)]
-fn get_locales() -> &'static HashMap<String, Locale> {
+static LOCALES: Lazy<HashMap<String, Locale>> =
-    LOCALES.get_or_init(|| {
+    Lazy::new(|| bitcode::decode(include_bytes!("locales.bin")).expect("Failed parsing locale"));
-        bitcode::decode(include_bytes!("locales.bin")).expect("Failed parsing locale")
-    })
-}
 
 pub fn get_locale(id: &str) -> Result<&Locale, String> {
-    get_locales()
+    // TODO: pass the locale once we implement locales in Rust
-        .get(id)
+    let locale = LOCALES.get(id).ok_or("Invalid locale")?;
-        .ok_or_else(|| format!("Invalid locale: '{id}'"))
+    Ok(locale)
 }

base/src/model.rs

@@ -106,15 +106,15 @@ pub struct Model {
     pub(crate) shared_strings: HashMap<String, usize>,
     /// An instance of the parser
     pub(crate) parser: Parser,
-    /// The list of cells with formulas that are evaluated or being evaluated
+    /// The list of cells with formulas that are evaluated of being evaluated
     pub(crate) cells: HashMap<(u32, i32, i32), CellState>,
     /// The locale of the model
     pub(crate) locale: Locale,
-    /// The language used
+    /// Tha language used
     pub(crate) language: Language,
     /// The timezone used to evaluate the model
     pub(crate) tz: Tz,
-    /// The view id. A view consists of a selected sheet and ranges.
+    /// The view id. A view consist of a selected sheet and ranges.
     pub(crate) view_id: u32,
 }
 
@@ -207,17 +207,6 @@ impl Model {
                     },
                 }
             }
-            Node::ImplicitIntersection {
-                automatic: _,
-                child,
-            } => match self.evaluate_node_with_reference(child, cell) {
-                CalcResult::Range { left, right } => CalcResult::Range { left, right },
-                _ => CalcResult::new_error(
-                    Error::ERROR,
-                    cell,
-                    format!("Error with Implicit Intersection in cell {cell:?}"),
-                ),
-            },
             _ => self.evaluate_node_in_context(node, cell),
         }
     }
@@ -267,10 +256,27 @@ impl Model {
     ) -> CalcResult {
         use Node::*;
         match node {
-            OpSumKind { kind, left, right } => match kind {
+            OpSumKind { kind, left, right } => {
-                OpSum::Add => self.handle_arithmetic(left, right, cell, &|f1, f2| Ok(f1 + f2)),
+                // In the future once the feature try trait stabilizes we could use the '?' operator for this :)
-                OpSum::Minus => self.handle_arithmetic(left, right, cell, &|f1, f2| Ok(f1 - f2)),
+                // See: https://play.rust-lang.org/?version=nightly&mode=debug&edition=2018&gist=236044e8321a1450988e6ffe5a27dab5
-            },
+                let l = match self.get_number(left, cell) {
+                    Ok(f) => f,
+                    Err(s) => {
+                        return s;
+                    }
+                };
+                let r = match self.get_number(right, cell) {
+                    Ok(f) => f,
+                    Err(s) => {
+                        return s;
+                    }
+                };
+                let result = match kind {
+                    OpSum::Add => l + r,
+                    OpSum::Minus => l - r,
+                };
+                CalcResult::Number(result)
+            }
             NumberKind(value) => CalcResult::Number(*value),
             StringKind(value) => CalcResult::String(value.replace(r#""""#, r#"""#)),
             BooleanKind(value) => CalcResult::Boolean(*value),
@@ -355,30 +361,62 @@ impl Model {
                         return s;
                     }
                 };
-                let result = format!("{l}{r}");
+                let result = format!("{}{}", l, r);
                 CalcResult::String(result)
             }
-            OpProductKind { kind, left, right } => match kind {
+            OpProductKind { kind, left, right } => {
-                OpProduct::Times => {
+                let l = match self.get_number(left, cell) {
-                    self.handle_arithmetic(left, right, cell, &|f1, f2| Ok(f1 * f2))
+                    Ok(f) => f,
+                    Err(s) => {
+                        return s;
                     }
-                OpProduct::Divide => self.handle_arithmetic(left, right, cell, &|f1, f2| {
+                };
-                    if f2 == 0.0 {
+                let r = match self.get_number(right, cell) {
-                        Err(Error::DIV)
+                    Ok(f) => f,
-                    } else {
+                    Err(s) => {
-                        Ok(f1 / f2)
+                        return s;
+                    }
+                };
+                let result = match kind {
+                    OpProduct::Times => l * r,
+                    OpProduct::Divide => {
+                        if r == 0.0 {
+                            return CalcResult::new_error(
+                                Error::DIV,
+                                cell,
+                                "Divide by Zero".to_string(),
+                            );
+                        }
+                        l / r
+                    }
+                };
+                CalcResult::Number(result)
             }
-                }),
-            },
             OpPowerKind { left, right } => {
-                self.handle_arithmetic(left, right, cell, &|f1, f2| Ok(f1.powf(f2)))
+                let l = match self.get_number(left, cell) {
+                    Ok(f) => f,
+                    Err(s) => {
+                        return s;
+                    }
+                };
+                let r = match self.get_number(right, cell) {
+                    Ok(f) => f,
+                    Err(s) => {
+                        return s;
+                    }
+                };
+                // Deal with errors properly
+                CalcResult::Number(l.powf(r))
             }
             FunctionKind { kind, args } => self.evaluate_function(kind, args, cell),
             InvalidFunctionKind { name, args: _ } => {
-                CalcResult::new_error(Error::ERROR, cell, format!("Invalid function: {name}"))
+                CalcResult::new_error(Error::ERROR, cell, format!("Invalid function: {}", name))
             }
-            ArrayKind(s) => CalcResult::Array(s.to_owned()),
+            ArrayKind(_) => {
-            DefinedNameKind((name, scope, _)) => {
+                // TODO: NOT IMPLEMENTED
+                CalcResult::new_error(Error::NIMPL, cell, "Arrays not implemented".to_string())
+            }
+            DefinedNameKind((name, scope)) => {
                 if let Ok(Some(parsed_defined_name)) = self.get_parsed_defined_name(name, *scope) {
                     match parsed_defined_name {
                         ParsedDefinedName::CellReference(reference) => {
@@ -391,26 +429,26 @@ impl Model {
                         ParsedDefinedName::InvalidDefinedNameFormula => CalcResult::new_error(
                             Error::NAME,
                             cell,
-                            format!("Defined name \"{name}\" is not a reference."),
+                            format!("Defined name \"{}\" is not a reference.", name),
                         ),
                     }
                 } else {
                     CalcResult::new_error(
                         Error::NAME,
                         cell,
-                        format!("Defined name \"{name}\" not found."),
+                        format!("Defined name \"{}\" not found.", name),
                     )
                 }
             }
             TableNameKind(s) => CalcResult::new_error(
                 Error::NAME,
                 cell,
-                format!("table name \"{s}\" not supported."),
+                format!("table name \"{}\" not supported.", s),
             ),
             WrongVariableKind(s) => CalcResult::new_error(
                 Error::NAME,
                 cell,
-                format!("Variable name \"{s}\" not found."),
+                format!("Variable name \"{}\" not found.", s),
             ),
             CompareKind { kind, left, right } => {
                 let l = self.evaluate_node_in_context(left, cell);
@@ -487,25 +525,9 @@ impl Model {
             } => CalcResult::new_error(
                 Error::ERROR,
                 cell,
-                format!("Error parsing {formula}: {message}"),
+                format!("Error parsing {}: {}", formula, message),
             ),
             EmptyArgKind => CalcResult::EmptyArg,
-            ImplicitIntersection {
-                automatic: _,
-                child,
-            } => match self.evaluate_node_with_reference(child, cell) {
-                CalcResult::Range { left, right } => {
-                    match implicit_intersection(&cell, &Range { left, right }) {
-                        Some(cell_reference) => self.evaluate_cell(cell_reference),
-                        None => CalcResult::new_error(
-                            Error::VALUE,
-                            cell,
-                            format!("Error with Implicit Intersection in cell {cell:?}"),
-                        ),
-                    }
-                }
-                _ => self.evaluate_node_in_context(child, cell),
-            },
         }
     }
 
@@ -595,15 +617,12 @@ impl Model {
                     };
                 }
                 CalcResult::Range { left, right } => {
-                    if left.sheet == right.sheet
+                    let range = Range {
-                        && left.row == right.row
+                        left: *left,
-                        && left.column == right.column
+                        right: *right,
-                    {
-                        let intersection_cell = CellReferenceIndex {
-                            sheet: left.sheet,
-                            column: left.column,
-                            row: left.row,
                     };
+                    if let Some(intersection_cell) = implicit_intersection(&cell_reference, &range)
+                    {
                         let v = self.evaluate_cell(intersection_cell);
                         self.set_cell_value(cell_reference, &v);
                     } else {
@@ -620,32 +639,10 @@ impl Model {
                             f,
                             s,
                             o,
-                            m: "Implicit Intersection not implemented".to_string(),
+                            m: "Invalid reference".to_string(),
-                            ei: Error::NIMPL,
+                            ei: Error::VALUE,
                         };
                     }
-                    // if let Some(intersection_cell) = implicit_intersection(&cell_reference, &range)
-                    // {
-                    //     let v = self.evaluate_cell(intersection_cell);
-                    //     self.set_cell_value(cell_reference, &v);
-                    // } else {
-                    //     let o = match self.cell_reference_to_string(&cell_reference) {
-                    //         Ok(s) => s,
-                    //         Err(_) => "".to_string(),
-                    //     };
-                    //     *self.workbook.worksheets[sheet as usize]
-                    //         .sheet_data
-                    //         .get_mut(&row)
-                    //         .expect("expected a row")
-                    //         .get_mut(&column)
-                    //         .expect("expected a column") = Cell::CellFormulaError {
-                    //         f,
-                    //         s,
-                    //         o,
-                    //         m: "Invalid reference".to_string(),
-                    //         ei: Error::VALUE,
-                    //     };
-                    // }
                 }
                 CalcResult::EmptyCell | CalcResult::EmptyArg => {
                     *self.workbook.worksheets[sheet as usize]
@@ -655,20 +652,6 @@ impl Model {
                         .get_mut(&column)
                         .expect("expected a column") = Cell::CellFormulaNumber { f, s, v: 0.0 };
                 }
-                CalcResult::Array(_) => {
-                    *self.workbook.worksheets[sheet as usize]
-                        .sheet_data
-                        .get_mut(&row)
-                        .expect("expected a row")
-                        .get_mut(&column)
-                        .expect("expected a column") = Cell::CellFormulaError {
-                        f,
-                        s,
-                        o: "".to_string(),
-                        m: "Arrays not supported yet".to_string(),
-                        ei: Error::NIMPL,
-                    };
-                }
             }
         }
     }
@@ -697,7 +680,7 @@ impl Model {
             worksheet.color = Some(color.to_string());
             return Ok(());
         }
-        Err(format!("Invalid color: {color}"))
+        Err(format!("Invalid color: {}", color))
     }
 
     /// Changes the visibility of a sheet
@@ -882,7 +865,11 @@ impl Model {
 
         let worksheet_names = worksheets.iter().map(|s| s.get_name()).collect();
 
-        let defined_names = workbook.get_defined_names_with_scope();
+        let defined_names = workbook
+            .get_defined_names_with_scope()
+            .iter()
+            .map(|s| (s.0.to_owned(), s.1))
+            .collect();
         // add all tables
         // let mut tables = Vec::new();
         // for worksheet in worksheets {
@@ -1027,7 +1014,7 @@ impl Model {
         let source_sheet_name = self
             .workbook
             .worksheet(source.sheet)
-            .map_err(|e| format!("Could not find source worksheet: {e}"))?
+            .map_err(|e| format!("Could not find source worksheet: {}", e))?
             .get_name();
         if source.sheet != area.sheet {
             return Err("Source and area are in different sheets".to_string());
@@ -1041,7 +1028,7 @@ impl Model {
         let target_sheet_name = self
             .workbook
             .worksheet(target.sheet)
-            .map_err(|e| format!("Could not find target worksheet: {e}"))?
+            .map_err(|e| format!("Could not find target worksheet: {}", e))?
             .get_name();
         if let Some(formula) = value.strip_prefix('=') {
             let cell_reference = CellReferenceRC {
@@ -1061,7 +1048,7 @@ impl Model {
                     column_delta: target.column - source.column,
                 },
             );
-            Ok(format!("={formula_str}"))
+            Ok(format!("={}", formula_str))
         } else {
             Ok(value.to_string())
         }
@@ -1538,7 +1525,7 @@ impl Model {
         // If the formula fails to parse try adding a parenthesis
         // SUM(A1:A3  => SUM(A1:A3)
         if let Node::ParseErrorKind { .. } = parsed_formula {
-            let new_parsed_formula = self.parser.parse(&format!("{formula})"), &cell_reference);
+            let new_parsed_formula = self.parser.parse(&format!("{})", formula), &cell_reference);
             match new_parsed_formula {
                 Node::ParseErrorKind { .. } => {}
                 _ => parsed_formula = new_parsed_formula,

base/src/new_empty.rs

@@ -8,7 +8,7 @@ use crate::{
     expressions::{
         lexer::LexerMode,
         parser::{
-            stringify::{rename_sheet_in_node, to_rc_format, to_string},
+            stringify::{rename_sheet_in_node, to_rc_format},
             Parser,
         },
         types::CellReferenceRC,
@@ -17,8 +17,7 @@ use crate::{
     locale::get_locale,
     model::{get_milliseconds_since_epoch, Model, ParsedDefinedName},
     types::{
-        DefinedName, Metadata, SheetState, Workbook, WorkbookSettings, WorkbookView, Worksheet,
+        Metadata, SheetState, Workbook, WorkbookSettings, WorkbookView, Worksheet, WorksheetView,
-        WorksheetView,
     },
     utils::ParsedReference,
 };
@@ -145,7 +144,12 @@ impl Model {
 
     /// Reparses all formulas and defined names
     pub(crate) fn reset_parsed_structures(&mut self) {
-        let defined_names = self.workbook.get_defined_names_with_scope();
+        let defined_names = self
+            .workbook
+            .get_defined_names_with_scope()
+            .iter()
+            .map(|s| (s.0.to_owned(), s.1))
+            .collect();
         self.parser
             .set_worksheets_and_names(self.workbook.get_worksheet_names(), defined_names);
         self.parsed_formulas = vec![];
@@ -168,11 +172,11 @@ impl Model {
             .get_worksheet_names()
             .iter()
             .map(|s| s.to_uppercase())
-            .any(|x| x == format!("{base_name_uppercase}{index}"))
+            .any(|x| x == format!("{}{}", base_name_uppercase, index))
         {
             index += 1;
         }
-        let sheet_name = format!("{base_name}{index}");
+        let sheet_name = format!("{}{}", base_name, index);
         // Now we need a sheet_id
         let sheet_id = self.get_new_sheet_id();
         let view_ids: Vec<&u32> = self.workbook.views.keys().collect();
@@ -192,7 +196,7 @@ impl Model {
         sheet_id: Option<u32>,
     ) -> Result<(), String> {
         if !is_valid_sheet_name(sheet_name) {
-            return Err(format!("Invalid name for a sheet: '{sheet_name}'"));
+            return Err(format!("Invalid name for a sheet: '{}'", sheet_name));
         }
         if self
             .workbook
@@ -234,12 +238,12 @@ impl Model {
         if let Some(sheet_index) = self.get_sheet_index_by_name(old_name) {
             return self.rename_sheet_by_index(sheet_index, new_name);
         }
-        Err(format!("Could not find sheet {old_name}"))
+        Err(format!("Could not find sheet {}", old_name))
     }
 
     /// Renames a sheet and updates all existing references to that sheet.
     /// It can fail if:
-    ///   * The original index is out of bounds
+    ///   * The original index is too large
     ///   * The target sheet name already exists
     ///   * The target sheet name is invalid
     pub fn rename_sheet_by_index(
@@ -248,20 +252,22 @@ impl Model {
         new_name: &str,
     ) -> Result<(), String> {
         if !is_valid_sheet_name(new_name) {
-            return Err(format!("Invalid name for a sheet: '{new_name}'."));
+            return Err(format!("Invalid name for a sheet: '{}'.", new_name));
         }
         if self.get_sheet_index_by_name(new_name).is_some() {
-            return Err(format!("Sheet already exists: '{new_name}'."));
+            return Err(format!("Sheet already exists: '{}'.", new_name));
+        }
+        let worksheets = &self.workbook.worksheets;
+        let sheet_count = worksheets.len() as u32;
+        if sheet_index >= sheet_count {
+            return Err("Sheet index out of bounds".to_string());
         }
-        // Gets the new name and checks that a sheet with that index exists
-        let old_name = self.workbook.worksheet(sheet_index)?.get_name();
-
         // Parse all formulas with the old name
         // All internal formulas are R1C1
         self.parser.set_lexer_mode(LexerMode::R1C1);
-
+        // We use iter because the default would be a mut_iter and we don't need a mutable reference
-        for worksheet in &mut self.workbook.worksheets {
+        let worksheets = &mut self.workbook.worksheets;
-            // R1C1 formulas are not tied to a cell (but are tied to a cell)
+        for worksheet in worksheets {
             let cell_reference = &CellReferenceRC {
                 sheet: worksheet.get_name(),
                 row: 1,
@@ -275,32 +281,11 @@ impl Model {
             }
             worksheet.shared_formulas = formulas;
         }
-
+        // Se the mode back to A1
-        // Set the mode back to A1
         self.parser.set_lexer_mode(LexerMode::A1);
-
-        // We reparse all the defined names formulas
-        let mut defined_names = Vec::new();
-        // Defined names do not have a context, we can use anything
-        let cell_reference = &CellReferenceRC {
-            sheet: old_name.clone(),
-            row: 1,
-            column: 1,
-        };
-        for defined_name in &mut self.workbook.defined_names {
-            let mut t = self.parser.parse(&defined_name.formula, cell_reference);
-            rename_sheet_in_node(&mut t, sheet_index, new_name);
-            let formula = to_string(&t, cell_reference);
-            defined_names.push(DefinedName {
-                name: defined_name.name.clone(),
-                formula,
-                sheet_id: defined_name.sheet_id,
-            });
-        }
-        self.workbook.defined_names = defined_names;
-
         // Update the name of the worksheet
-        self.workbook.worksheet_mut(sheet_index)?.set_name(new_name);
+        let worksheets = &mut self.workbook.worksheets;
+        worksheets[sheet_index as usize].set_name(new_name);
         self.reset_parsed_structures();
         Ok(())
     }
@@ -362,14 +347,14 @@ impl Model {
         };
         let locale = match get_locale(locale_id) {
             Ok(l) => l.clone(),
-            Err(_) => return Err(format!("Invalid locale: {locale_id}")),
+            Err(_) => return Err(format!("Invalid locale: {}", locale_id)),
         };
 
         let milliseconds = get_milliseconds_since_epoch();
         let seconds = milliseconds / 1000;
         let dt = match DateTime::from_timestamp(seconds, 0) {
             Some(s) => s,
-            None => return Err(format!("Invalid timestamp: {milliseconds}")),
+            None => return Err(format!("Invalid timestamp: {}", milliseconds)),
         };
         // "2020-08-06T21:20:53Z
         let now = dt.format("%Y-%m-%dT%H:%M:%SZ").to_string();

base/src/number_format.rs

@@ -126,7 +126,7 @@ pub fn to_precision_str(value: f64, precision: usize) -> String {
     let exponent = value.abs().log10().floor();
     let base = value / 10.0_f64.powf(exponent);
     let base = format!("{0:.1$}", base, precision - 1);
-    let value = format!("{base}e{exponent}").parse::<f64>().unwrap_or({
+    let value = format!("{}e{}", base, exponent).parse::<f64>().unwrap_or({
         // TODO: do this in a way that does not require a possible error
         0.0
     });

base/src/styles.rs

@@ -154,7 +154,7 @@ impl Styles {
                 return Ok(cell_style.xf_id);
             }
         }
-        Err(format!("Style '{style_name}' not found"))
+        Err(format!("Style '{}' not found", style_name))
     }
 
     pub fn create_named_style(&mut self, style_name: &str, style: &Style) -> Result<(), String> {

base/src/test/mod.rs

@@ -7,8 +7,6 @@ mod test_column_width;
 mod test_criteria;
 mod test_currency;
 mod test_date_and_time;
-mod test_datedif_leap_month_end;
-mod test_days360_month_end;
 mod test_error_propagation;
 mod test_fn_average;
 mod test_fn_averageifs;
@@ -29,8 +27,8 @@ mod test_fn_sum;
 mod test_fn_sumifs;
 mod test_fn_textbefore;
 mod test_fn_textjoin;
-mod test_fn_time;
 mod test_fn_unicode;
+mod test_forward_references;
 mod test_frozen_rows_columns;
 mod test_general;
 mod test_math;
@@ -46,32 +44,22 @@ mod test_sheets;
 mod test_styles;
 mod test_trigonometric;
 mod test_true_false;
-mod test_weekday_return_types;
-mod test_weeknum_return_types;
 mod test_workbook;
 mod test_worksheet;
-mod test_yearfrac_basis;
 pub(crate) mod util;
 
 mod engineering;
 mod test_fn_offset;
 mod test_number_format;
 
-mod test_arrays;
 mod test_escape_quotes;
 mod test_extend;
 mod test_fn_fv;
-mod test_fn_round;
 mod test_fn_type;
 mod test_frozen_rows_and_columns;
 mod test_geomean;
 mod test_get_cell_content;
-mod test_implicit_intersection;
 mod test_issue_155;
-mod test_ln;
-mod test_log;
-mod test_log10;
-mod test_networkdays;
 mod test_percentage;
 mod test_set_functions_error_handling;
 mod test_today;

base/src/test/test_actions.rs

@@ -1,6 +1,6 @@
 #![allow(clippy::unwrap_used)]
 
-use crate::constants::{DEFAULT_ROW_HEIGHT, LAST_COLUMN, LAST_ROW};
+use crate::constants::{DEFAULT_ROW_HEIGHT, LAST_COLUMN};
 use crate::model::Model;
 use crate::test::util::new_empty_model;
 use crate::types::Col;
@@ -508,10 +508,6 @@ fn test_move_column_right() {
     assert_eq!(model._get_formula("E5"), "=SUM(H3:J7)");
     assert_eq!(model._get_formula("E6"), "=SUM(H3:H7)");
     assert_eq!(model._get_formula("E7"), "=SUM(G3:G7)");
-
-    // Data moved as well
-    assert_eq!(model._get_text("G1"), "1");
-    assert_eq!(model._get_text("H1"), "3");
 }
 
 #[test]
@@ -536,249 +532,5 @@ fn tets_move_column_error() {
     assert!(result.is_ok());
 }
 
-#[test]
-fn test_move_row_down() {
-    let mut model = new_empty_model();
-    populate_table(&mut model);
-    // Formulas referencing rows 3 and 4
-    model._set("E3", "=G3");
-    model._set("E4", "=G4");
-    model._set("E5", "=SUM(G3:J3)");
-    model._set("E6", "=SUM(G3:G3)");
-    model._set("E7", "=SUM(G4:G4)");
-    model.evaluate();
-
-    // Move row 3 down by one position
-    let result = model.move_row_action(0, 3, 1);
-    assert!(result.is_ok());
-    model.evaluate();
-
-    assert_eq!(model._get_formula("E3"), "=G3");
-    assert_eq!(model._get_formula("E4"), "=G4");
-    assert_eq!(model._get_formula("E5"), "=SUM(G4:J4)");
-    assert_eq!(model._get_formula("E6"), "=SUM(G4:G4)");
-    assert_eq!(model._get_formula("E7"), "=SUM(G3:G3)");
-
-    // Data moved as well
-    assert_eq!(model._get_text("G4"), "-2");
-    assert_eq!(model._get_text("G3"), "");
-}
-
-#[test]
-fn test_move_row_up() {
-    let mut model = new_empty_model();
-    populate_table(&mut model);
-    // Formulas referencing rows 4 and 5
-    model._set("E4", "=G4");
-    model._set("E5", "=G5");
-    model._set("E6", "=SUM(G4:J4)");
-    model._set("E7", "=SUM(G4:G4)");
-    model._set("E8", "=SUM(G5:G5)");
-    model.evaluate();
-
-    // Move row 5 up by one position
-    let result = model.move_row_action(0, 5, -1);
-    assert!(result.is_ok());
-    model.evaluate();
-
-    assert_eq!(model._get_formula("E4"), "=G4");
-    assert_eq!(model._get_formula("E5"), "=G5");
-    assert_eq!(model._get_formula("E6"), "=SUM(G5:J5)");
-    assert_eq!(model._get_formula("E7"), "=SUM(G5:G5)");
-    assert_eq!(model._get_formula("E8"), "=SUM(G4:G4)");
-
-    // Data moved as well
-    assert_eq!(model._get_text("G4"), "");
-    assert_eq!(model._get_text("G5"), "");
-}
-
-#[test]
-fn test_move_row_error() {
-    let mut model = new_empty_model();
-    model.evaluate();
-
-    let result = model.move_row_action(0, 7, -10);
-    assert!(result.is_err());
-
-    let result = model.move_row_action(0, -7, 20);
-    assert!(result.is_err());
-
-    let result = model.move_row_action(0, LAST_ROW, 1);
-    assert!(result.is_err());
-
-    let result = model.move_row_action(0, LAST_ROW + 1, -10);
-    assert!(result.is_err());
-
-    // This works
-    let result = model.move_row_action(0, LAST_ROW, -1);
-    assert!(result.is_ok());
-}
-
-#[test]
-fn test_move_row_down_absolute_refs() {
-    let mut model = new_empty_model();
-    populate_table(&mut model);
-    // Absolute references
-    model._set("E3", "=$G$3");
-    model._set("E4", "=$G$4");
-    model._set("E5", "=SUM($G$3:$J$3)");
-    model._set("E6", "=SUM($G$3:$G$3)");
-    model._set("E7", "=SUM($G$4:$G$4)");
-    model.evaluate();
-
-    assert!(model.move_row_action(0, 3, 1).is_ok());
-    model.evaluate();
-
-    assert_eq!(model._get_formula("E3"), "=$G$3");
-    assert_eq!(model._get_formula("E4"), "=$G$4");
-    assert_eq!(model._get_formula("E5"), "=SUM($G$4:$J$4)");
-    assert_eq!(model._get_formula("E6"), "=SUM($G$4:$G$4)");
-    assert_eq!(model._get_formula("E7"), "=SUM($G$3:$G$3)");
-}
-
-#[test]
-fn test_move_column_right_absolute_refs() {
-    let mut model = new_empty_model();
-    populate_table(&mut model);
-    // Absolute references
-    model._set("E3", "=$G$3");
-    model._set("E4", "=$H$3");
-    model._set("E5", "=SUM($G$3:$J$7)");
-    model._set("E6", "=SUM($G$3:$G$7)");
-    model._set("E7", "=SUM($H$3:$H$7)");
-    model.evaluate();
-
-    assert!(model.move_column_action(0, 7, 1).is_ok());
-    model.evaluate();
-
-    assert_eq!(model._get_formula("E3"), "=$H$3");
-    assert_eq!(model._get_formula("E4"), "=$G$3");
-    assert_eq!(model._get_formula("E5"), "=SUM($H$3:$J$7)");
-    assert_eq!(model._get_formula("E6"), "=SUM($H$3:$H$7)");
-    assert_eq!(model._get_formula("E7"), "=SUM($G$3:$G$7)");
-}
-
-#[test]
-fn test_move_row_down_mixed_refs() {
-    let mut model = new_empty_model();
-    populate_table(&mut model);
-    model._set("E3", "=$G3"); // absolute col, relative row
-    model._set("E4", "=$G4");
-    model._set("E5", "=SUM($G3:$J3)");
-    model._set("E6", "=SUM($G3:$G3)");
-    model._set("E7", "=SUM($G4:$G4)");
-    model._set("F3", "=H$3"); // relative col, absolute row
-    model._set("F4", "=G$3");
-    model.evaluate();
-
-    assert!(model.move_row_action(0, 3, 1).is_ok());
-    model.evaluate();
-
-    assert_eq!(model._get_formula("E3"), "=$G3");
-    assert_eq!(model._get_formula("E4"), "=$G4");
-    assert_eq!(model._get_formula("E5"), "=SUM($G4:$J4)");
-    assert_eq!(model._get_formula("E6"), "=SUM($G4:$G4)");
-    assert_eq!(model._get_formula("E7"), "=SUM($G3:$G3)");
-    assert_eq!(model._get_formula("F3"), "=G$4");
-    assert_eq!(model._get_formula("F4"), "=H$4");
-}
-
-#[test]
-fn test_move_column_right_mixed_refs() {
-    let mut model = new_empty_model();
-    populate_table(&mut model);
-    model._set("E3", "=$G3");
-    model._set("E4", "=$H3");
-    model._set("E5", "=SUM($G3:$J7)");
-    model._set("E6", "=SUM($G3:$G7)");
-    model._set("E7", "=SUM($H3:$H7)");
-    model._set("F3", "=H$3");
-    model._set("F4", "=H$3");
-    model.evaluate();
-
-    assert!(model.move_column_action(0, 7, 1).is_ok());
-    model.evaluate();
-
-    assert_eq!(model._get_formula("E3"), "=$H3");
-    assert_eq!(model._get_formula("E4"), "=$G3");
-    assert_eq!(model._get_formula("E5"), "=SUM($H3:$J7)");
-    assert_eq!(model._get_formula("E6"), "=SUM($H3:$H7)");
-    assert_eq!(model._get_formula("E7"), "=SUM($G3:$G7)");
-    assert_eq!(model._get_formula("F3"), "=G$3");
-    assert_eq!(model._get_formula("F4"), "=G$3");
-}
-
-#[test]
-fn test_move_row_height() {
-    let mut model = new_empty_model();
-    let sheet = 0;
-    let custom_height = DEFAULT_ROW_HEIGHT * 2.0;
-    // Set a custom height for row 3
-    model
-        .workbook
-        .worksheet_mut(sheet)
-        .unwrap()
-        .set_row_height(3, custom_height)
-        .unwrap();
-
-    // Record the original height of row 4 (should be the default)
-    let original_row4_height = model.get_row_height(sheet, 4).unwrap();
-
-    // Move row 3 down by one position
-    assert!(model.move_row_action(sheet, 3, 1).is_ok());
-
-    // The custom height should now be on row 4
-    assert_eq!(model.get_row_height(sheet, 4), Ok(custom_height));
-
-    // Row 3 should now have the previous height of row 4
-    assert_eq!(model.get_row_height(sheet, 3), Ok(original_row4_height));
-}
-
-/// Moving a row down by two positions should shift formulas on intermediate
-/// rows by only one (the row that gets skipped), not by the full delta ‒ this
-/// guards against the regression fixed in the RowMove displacement logic.
-#[test]
-fn test_row_move_down_two_updates_intermediate_refs_by_one() {
-    let mut model = new_empty_model();
-    populate_table(&mut model);
-    // Set up formulas to verify intermediate rows shift by 1 (not full delta).
-    model._set("E3", "=G3"); // target row
-    model._set("E4", "=G4"); // intermediate row
-    model._set("E5", "=SUM(G3:J3)");
-    model.evaluate();
-
-    // Move row 3 down by two positions (row 3 -> row 5)
-    assert!(model.move_row_action(0, 3, 2).is_ok());
-    model.evaluate();
-
-    // Assert that references for the moved row and intermediate row are correct.
-    assert_eq!(model._get_formula("E3"), "=G3");
-    assert_eq!(model._get_formula("E5"), "=G5");
-    assert_eq!(model._get_formula("E4"), "=SUM(G5:J5)");
-}
-
-/// Moving a column right by two positions should shift formulas on
-/// intermediate columns by only one, ensuring the ColumnMove displacement
-/// logic handles multi-position moves correctly.
-#[test]
-fn test_column_move_right_two_updates_intermediate_refs_by_one() {
-    let mut model = new_empty_model();
-    populate_table(&mut model);
-    // Set up formulas to verify intermediate columns shift by 1 (not full delta).
-    model._set("E3", "=$G3"); // target column
-    model._set("E4", "=$H3"); // intermediate column
-    model._set("E5", "=SUM($G3:$J7)");
-    model.evaluate();
-
-    // Move column G (7) right by two positions (G -> I)
-    assert!(model.move_column_action(0, 7, 2).is_ok());
-    model.evaluate();
-
-    // Assert that references for moved and intermediate columns are correct.
-    assert_eq!(model._get_formula("E3"), "=$I3");
-    assert_eq!(model._get_formula("E4"), "=$G3");
-    assert_eq!(model._get_formula("E5"), "=SUM($I3:$J7)");
-}
-
 // A  B  C  D  E  F  G   H  I  J   K   L   M   N   O   P   Q   R
 // 1  2  3  4  5  6  7   8  9  10  11  12  13  14  15  16  17  18

base/src/test/test_arrays.rs

@@ -1,13 +0,0 @@
-#![allow(clippy::unwrap_used)]
-
-use crate::test::util::new_empty_model;
-
-#[test]
-fn sum_arrays() {
-    let mut model = new_empty_model();
-    model._set("A1", "=SUM({1,2,3}+{3,4,5})");
-
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), *"18");
-}

base/src/test/test_date_and_time.rs

@@ -6,11 +6,6 @@
 /// We can also enter examples that illustrate/document a part of the function
 use crate::{cell::CellValue, test::util::new_empty_model};
 
-// Excel uses a serial date system where Jan 1, 1900 = 1 (though it treats 1900 as a leap year)
-// Most test dates are documented inline, but we define boundary values here:
-const EXCEL_MAX_DATE: f64 = 2958465.0; // Dec 31, 9999 - used in boundary tests
-const EXCEL_INVALID_DATE: f64 = 2958466.0; // One day past max - used in error tests
-
 #[test]
 fn test_fn_date_arguments() {
     let mut model = new_empty_model();
@@ -221,382 +216,3 @@ fn test_date_early_dates() {
         Ok(CellValue::Number(61.0))
     );
 }
-#[test]
-fn test_days_function() {
-    let mut model = new_empty_model();
-
-    // Basic functionality
-    model._set("A1", "=DAYS(44570,44561)");
-    model._set("A2", "=DAYS(44561,44570)"); // Reversed order
-    model._set("A3", "=DAYS(44561,44561)");
-
-    // Edge cases
-    model._set("A4", "=DAYS(1,2)"); // Early dates
-    model._set(
-        "A5",
-        &format!("=DAYS({},{})", EXCEL_MAX_DATE, EXCEL_MAX_DATE - 1.0),
-    ); // Near max date
-
-    // Error cases - wrong argument count
-    model._set("A6", "=DAYS()");
-    model._set("A7", "=DAYS(44561)");
-    model._set("A8", "=DAYS(44561,44570,1)");
-
-    // Error cases - invalid dates
-    model._set("A9", "=DAYS(-1,44561)");
-    model._set("A10", &format!("=DAYS(44561,{EXCEL_INVALID_DATE})"));
-
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), *"9");
-    assert_eq!(model._get_text("A2"), *"-9");
-    assert_eq!(model._get_text("A3"), *"0");
-    assert_eq!(model._get_text("A4"), *"-1"); // DAYS(1,2) = 1-2 = -1
-    assert_eq!(model._get_text("A5"), *"1");
-    assert_eq!(model._get_text("A6"), *"#ERROR!");
-    assert_eq!(model._get_text("A7"), *"#ERROR!");
-    assert_eq!(model._get_text("A8"), *"#ERROR!");
-    assert_eq!(model._get_text("A9"), *"#NUM!");
-    assert_eq!(model._get_text("A10"), *"#NUM!");
-}
-
-#[test]
-fn test_days360_function() {
-    let mut model = new_empty_model();
-
-    // Basic functionality with different basis values
-    model._set("A1", "=DAYS360(44196,44560)"); // Default basis (US 30/360)
-    model._set("A2", "=DAYS360(44196,44560,FALSE)"); // US 30/360 explicitly
-    model._set("A3", "=DAYS360(44196,44560,TRUE)"); // European 30/360
-
-    // Same date
-    model._set("A4", "=DAYS360(44561,44561)");
-    model._set("A5", "=DAYS360(44561,44561,TRUE)");
-
-    // Reverse order (negative result)
-    model._set("A6", "=DAYS360(44560,44196)");
-    model._set("A7", "=DAYS360(44560,44196,TRUE)");
-
-    // Edge cases
-    model._set("A8", "=DAYS360(1,2)");
-    model._set("A9", "=DAYS360(1,2,FALSE)");
-
-    // Error cases - wrong argument count
-    model._set("A10", "=DAYS360()");
-    model._set("A11", "=DAYS360(44561)");
-    model._set("A12", "=DAYS360(44561,44570,TRUE,1)");
-
-    // Error cases - invalid dates
-    model._set("A13", "=DAYS360(-1,44561)");
-    model._set("A14", &format!("=DAYS360(44561,{EXCEL_INVALID_DATE})"));
-
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), *"360");
-    assert_eq!(model._get_text("A2"), *"360");
-    assert_eq!(model._get_text("A3"), *"360");
-    assert_eq!(model._get_text("A4"), *"0");
-    assert_eq!(model._get_text("A5"), *"0");
-    assert_eq!(model._get_text("A6"), *"-360");
-    assert_eq!(model._get_text("A7"), *"-360");
-    assert_eq!(model._get_text("A8"), *"1");
-    assert_eq!(model._get_text("A9"), *"1");
-    assert_eq!(model._get_text("A10"), *"#ERROR!");
-    assert_eq!(model._get_text("A11"), *"#ERROR!");
-    assert_eq!(model._get_text("A12"), *"#ERROR!");
-    assert_eq!(model._get_text("A13"), *"#NUM!");
-    assert_eq!(model._get_text("A14"), *"#NUM!");
-}
-
-#[test]
-fn test_weekday_function() {
-    let mut model = new_empty_model();
-
-    // Test return_type parameter variations with one known date (Friday 44561)
-    model._set("A1", "=WEEKDAY(44561)"); // Default: Sun=1, Fri=6
-    model._set("A2", "=WEEKDAY(44561,2)"); // Mon=1, Fri=5
-    model._set("A3", "=WEEKDAY(44561,3)"); // Mon=0, Fri=4
-
-    // Test boundary days (Sun/Mon) to verify return_type logic
-    model._set("A4", "=WEEKDAY(44556,1)"); // Sunday: should be 1
-    model._set("A5", "=WEEKDAY(44556,2)"); // Sunday: should be 7
-    model._set("A6", "=WEEKDAY(44557,2)"); // Monday: should be 1
-
-    // Error cases
-    model._set("A7", "=WEEKDAY()"); // Wrong arg count
-    model._set("A8", "=WEEKDAY(44561,0)"); // Invalid return_type
-    model._set("A9", "=WEEKDAY(-1)"); // Invalid date
-
-    model.evaluate();
-
-    // Core functionality
-    assert_eq!(model._get_text("A1"), *"6"); // Friday default
-    assert_eq!(model._get_text("A2"), *"5"); // Friday Mon=1
-    assert_eq!(model._get_text("A3"), *"4"); // Friday Mon=0
-
-    // Boundary verification
-    assert_eq!(model._get_text("A4"), *"1"); // Sunday Sun=1
-    assert_eq!(model._get_text("A5"), *"7"); // Sunday Mon=1
-    assert_eq!(model._get_text("A6"), *"1"); // Monday Mon=1
-
-    // Error cases
-    assert_eq!(model._get_text("A7"), *"#ERROR!");
-    assert_eq!(model._get_text("A8"), *"#VALUE!");
-    assert_eq!(model._get_text("A9"), *"#NUM!");
-}
-
-#[test]
-fn test_weeknum_function() {
-    let mut model = new_empty_model();
-
-    // Test different return_type values (1=week starts Sunday, 2=week starts Monday)
-    model._set("A1", "=WEEKNUM(44561)"); // Default return_type=1
-    model._set("A2", "=WEEKNUM(44561,1)"); // Sunday start
-    model._set("A3", "=WEEKNUM(44561,2)"); // Monday start
-
-    // Test year boundaries
-    model._set("A4", "=WEEKNUM(43831,1)"); // Jan 1, 2020 (Wednesday)
-    model._set("A5", "=WEEKNUM(43831,2)"); // Jan 1, 2020 (Wednesday)
-    model._set("A6", "=WEEKNUM(44196,1)"); // Dec 31, 2020 (Thursday)
-    model._set("A7", "=WEEKNUM(44196,2)"); // Dec 31, 2020 (Thursday)
-
-    // Test first and last weeks of year
-    model._set("A8", "=WEEKNUM(44197,1)"); // Jan 1, 2021 (Friday)
-    model._set("A9", "=WEEKNUM(44197,2)"); // Jan 1, 2021 (Friday)
-    model._set("A10", "=WEEKNUM(44561,1)"); // Dec 31, 2021 (Friday)
-    model._set("A11", "=WEEKNUM(44561,2)"); // Dec 31, 2021 (Friday)
-
-    // Error cases - wrong argument count
-    model._set("A12", "=WEEKNUM()");
-    model._set("A13", "=WEEKNUM(44561,1,1)");
-
-    // Error cases - invalid return_type
-    model._set("A14", "=WEEKNUM(44561,0)");
-    model._set("A15", "=WEEKNUM(44561,3)");
-    model._set("A16", "=WEEKNUM(44561,-1)");
-
-    // Error cases - invalid dates
-    model._set("A17", "=WEEKNUM(-1)");
-    model._set("A18", &format!("=WEEKNUM({EXCEL_INVALID_DATE})"));
-
-    model.evaluate();
-
-    // Basic functionality
-    assert_eq!(model._get_text("A1"), *"53"); // Week 53
-    assert_eq!(model._get_text("A2"), *"53"); // Week 53 (Sunday start)
-    assert_eq!(model._get_text("A3"), *"53"); // Week 53 (Monday start)
-
-    // Year boundary tests
-    assert_eq!(model._get_text("A4"), *"1"); // Jan 1, 2020 (Sunday start)
-    assert_eq!(model._get_text("A5"), *"1"); // Jan 1, 2020 (Monday start)
-    assert_eq!(model._get_text("A6"), *"53"); // Dec 31, 2020 (Sunday start)
-    assert_eq!(model._get_text("A7"), *"53"); // Dec 31, 2020 (Monday start)
-
-    // 2021 tests
-    assert_eq!(model._get_text("A8"), *"1"); // Jan 1, 2021 (Sunday start)
-    assert_eq!(model._get_text("A9"), *"1"); // Jan 1, 2021 (Monday start)
-    assert_eq!(model._get_text("A10"), *"53"); // Dec 31, 2021 (Sunday start)
-    assert_eq!(model._get_text("A11"), *"53"); // Dec 31, 2021 (Monday start)
-
-    // Error cases
-    assert_eq!(model._get_text("A12"), *"#ERROR!");
-    assert_eq!(model._get_text("A13"), *"#ERROR!");
-    assert_eq!(model._get_text("A14"), *"#VALUE!");
-    assert_eq!(model._get_text("A15"), *"#VALUE!");
-    assert_eq!(model._get_text("A16"), *"#VALUE!");
-    assert_eq!(model._get_text("A17"), *"#NUM!");
-    assert_eq!(model._get_text("A18"), *"#NUM!");
-}
-
-#[test]
-fn test_workday_function() {
-    let mut model = new_empty_model();
-
-    // Basic functionality
-    model._set("A1", "=WORKDAY(44560,1)");
-    model._set("A2", "=WORKDAY(44561,-1)");
-    model._set("A3", "=WORKDAY(44561,0)");
-    model._set("A4", "=WORKDAY(44560,5)");
-
-    // Test with holidays
-    model._set("B1", "44561");
-    model._set("A5", "=WORKDAY(44560,1,B1)"); // Should skip the holiday
-    model._set("B2", "44562");
-    model._set("B3", "44563");
-    model._set("A6", "=WORKDAY(44560,3,B1:B3)"); // Multiple holidays
-
-    // Test starting on weekend
-    model._set("A7", "=WORKDAY(44562,1)"); // Saturday start
-    model._set("A8", "=WORKDAY(44563,1)"); // Sunday start
-
-    // Test negative workdays
-    model._set("A9", "=WORKDAY(44565,-3)"); // Go backwards 3 days
-    model._set("A10", "=WORKDAY(44565,-5,B1:B3)"); // Backwards with holidays
-
-    // Edge cases
-    model._set("A11", "=WORKDAY(1,1)"); // Early date
-    model._set("A12", "=WORKDAY(100000,10)"); // Large numbers
-
-    // Error cases - wrong argument count
-    model._set("A13", "=WORKDAY()");
-    model._set("A14", "=WORKDAY(44560)");
-    model._set("A15", "=WORKDAY(44560,1,B1,B2)");
-
-    // Error cases - invalid dates
-    model._set("A16", "=WORKDAY(-1,1)");
-    model._set("A17", &format!("=WORKDAY({EXCEL_INVALID_DATE},1)"));
-
-    // Error cases - invalid holiday dates
-    model._set("B4", "-1");
-    model._set("A18", "=WORKDAY(44560,1,B4)");
-
-    model.evaluate();
-
-    // Basic functionality
-    assert_eq!(model._get_text("A1"), *"44561"); // 1 day forward
-    assert_eq!(model._get_text("A2"), *"44560"); // 1 day backward
-    assert_eq!(model._get_text("A3"), *"44561"); // 0 days
-    assert_eq!(model._get_text("A4"), *"44567"); // 5 days forward
-
-    // With holidays
-    assert_eq!(model._get_text("A5"), *"44564"); // Skip holiday, go to Monday
-    assert_eq!(model._get_text("A6"), *"44566"); // Skip multiple holidays
-
-    // Weekend starts
-    assert_eq!(model._get_text("A7"), *"44564"); // From Saturday
-    assert_eq!(model._get_text("A8"), *"44564"); // From Sunday
-
-    // Negative workdays
-    assert_eq!(model._get_text("A9"), *"44560"); // 3 days back
-    assert_eq!(model._get_text("A10"), *"44557"); // 5 days back with holidays
-
-    // Edge cases
-    assert_eq!(model._get_text("A11"), *"2"); // Early date
-    assert_eq!(model._get_text("A12"), *"100014"); // Large numbers
-
-    // Error cases
-    assert_eq!(model._get_text("A13"), *"#ERROR!");
-    assert_eq!(model._get_text("A14"), *"#ERROR!");
-    assert_eq!(model._get_text("A15"), *"#ERROR!");
-    assert_eq!(model._get_text("A16"), *"#NUM!");
-    assert_eq!(model._get_text("A17"), *"#NUM!");
-    assert_eq!(model._get_text("A18"), *"#NUM!"); // Invalid holiday
-}
-
-#[test]
-fn test_workday_intl_function() {
-    let mut model = new_empty_model();
-
-    // Test key weekend mask types
-    model._set("A1", "=WORKDAY.INTL(44560,1,1)"); // Numeric: standard (Sat-Sun)
-    model._set("A2", "=WORKDAY.INTL(44560,1,2)"); // Numeric: Sun-Mon
-    model._set("A3", "=WORKDAY.INTL(44560,1,\"0000001\")"); // String: Sunday only
-    model._set("A4", "=WORKDAY.INTL(44560,1,\"1100000\")"); // String: Mon-Tue
-
-    // Test with holidays
-    model._set("B1", "44561");
-    model._set("A5", "=WORKDAY.INTL(44560,2,1,B1)"); // Standard + holiday
-    model._set("A6", "=WORKDAY.INTL(44560,2,7,B1)"); // Fri-Sat + holiday
-
-    // Basic edge cases
-    model._set("A7", "=WORKDAY.INTL(44561,0,1)"); // Zero days
-    model._set("A8", "=WORKDAY.INTL(44565,-1,1)"); // Negative days
-
-    // Error cases
-    model._set("A9", "=WORKDAY.INTL()"); // Wrong arg count
-    model._set("A10", "=WORKDAY.INTL(44560,1,0)"); // Invalid weekend mask
-    model._set("A11", "=WORKDAY.INTL(44560,1,\"123\")"); // Invalid string mask
-    model._set("A12", "=WORKDAY.INTL(-1,1,1)"); // Invalid date
-
-    model.evaluate();
-
-    // Weekend mask functionality
-    assert_eq!(model._get_text("A1"), *"44561"); // Standard weekend
-    assert_eq!(model._get_text("A2"), *"44561"); // Sun-Mon weekend
-    assert_eq!(model._get_text("A3"), *"44561"); // Sunday only
-    assert_eq!(model._get_text("A4"), *"44561"); // Mon-Tue weekend
-
-    // With holidays
-    assert_eq!(model._get_text("A5"), *"44565"); // Skip holiday + standard weekend
-    assert_eq!(model._get_text("A6"), *"44564"); // Skip holiday + Fri-Sat weekend
-
-    // Edge cases
-    assert_eq!(model._get_text("A7"), *"44561"); // Zero days
-    assert_eq!(model._get_text("A8"), *"44564"); // Negative days
-
-    // Error cases
-    assert_eq!(model._get_text("A9"), *"#ERROR!");
-    assert_eq!(model._get_text("A10"), *"#NUM!");
-    assert_eq!(model._get_text("A11"), *"#VALUE!");
-    assert_eq!(model._get_text("A12"), *"#NUM!");
-}
-
-#[test]
-fn test_yearfrac_function() {
-    let mut model = new_empty_model();
-
-    // Test key basis values (not exhaustive - just verify parameter works)
-    model._set("A1", "=YEARFRAC(44561,44926)"); // Default (30/360)
-    model._set("A2", "=YEARFRAC(44561,44926,1)"); // Actual/actual
-    model._set("A3", "=YEARFRAC(44561,44926,4)"); // European 30/360
-
-    // Edge cases
-    model._set("A4", "=YEARFRAC(44561,44561,1)"); // Same date = 0
-    model._set("A5", "=YEARFRAC(44926,44561,1)"); // Reverse = negative
-    model._set("A6", "=YEARFRAC(44197,44562,1)"); // Exact year (2021)
-
-    // Error cases
-    model._set("A7", "=YEARFRAC()"); // Wrong arg count
-    model._set("A8", "=YEARFRAC(44561,44926,5)"); // Invalid basis
-    model._set("A9", "=YEARFRAC(-1,44926,1)"); // Invalid date
-
-    model.evaluate();
-
-    // Basic functionality (approximate values expected)
-    assert_eq!(model._get_text("A1"), *"1"); // About 1 year
-    assert_eq!(model._get_text("A2"), *"1"); // About 1 year
-    assert_eq!(model._get_text("A3"), *"1"); // About 1 year
-
-    // Edge cases
-    assert_eq!(model._get_text("A4"), *"0"); // Same date
-    assert_eq!(model._get_text("A5"), *"-1"); // Negative
-    assert_eq!(model._get_text("A6"), *"1"); // Exact year
-
-    // Error cases
-    assert_eq!(model._get_text("A7"), *"#ERROR!");
-    assert_eq!(model._get_text("A8"), *"#NUM!"); // Invalid basis should return #NUM!
-    assert_eq!(model._get_text("A9"), *"#NUM!");
-}
-
-#[test]
-fn test_isoweeknum_function() {
-    let mut model = new_empty_model();
-
-    // Basic functionality
-    model._set("A1", "=ISOWEEKNUM(44563)"); // Mid-week date
-    model._set("A2", "=ISOWEEKNUM(44561)"); // Year-end date
-
-    // Key ISO week boundaries (just critical cases)
-    model._set("A3", "=ISOWEEKNUM(44197)"); // Jan 1, 2021 (Fri) -> Week 53 of 2020
-    model._set("A4", "=ISOWEEKNUM(44200)"); // Jan 4, 2021 (Mon) -> Week 1 of 2021
-    model._set("A5", "=ISOWEEKNUM(44564)"); // Jan 3, 2022 (Mon) -> Week 1 of 2022
-
-    // Error cases
-    model._set("A6", "=ISOWEEKNUM()"); // Wrong arg count
-    model._set("A7", "=ISOWEEKNUM(-1)"); // Invalid date
-
-    model.evaluate();
-
-    // Basic functionality
-    assert_eq!(model._get_text("A1"), *"52");
-    assert_eq!(model._get_text("A2"), *"52");
-
-    // ISO week boundaries
-    assert_eq!(model._get_text("A3"), *"53"); // Week 53 of previous year
-    assert_eq!(model._get_text("A4"), *"1"); // Week 1 of current year
-    assert_eq!(model._get_text("A5"), *"1"); // Week 1 of next year
-
-    // Error cases
-    assert_eq!(model._get_text("A6"), *"#ERROR!");
-    assert_eq!(model._get_text("A7"), *"#NUM!");
-}

base/src/test/test_datedif_leap_month_end.rs

@@ -1,33 +0,0 @@
-use crate::test::util::new_empty_model;
-
-#[test]
-fn test_datedif_yd_leap_year_edge_cases() {
-    let mut model = new_empty_model();
-
-    // 29 Feb 2020 → 28 Feb 2021   (should be 0 days)
-    model._set("A1", "=DATEDIF(\"29/2/2020\", \"28/2/2021\", \"YD\")");
-
-    // 29 Feb 2020 → 1 Mar 2021    (should be 1 day)
-    model._set("A2", "=DATEDIF(\"29/2/2020\", \"2021-03-01\", \"YD\")");
-
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), *"0");
-    assert_eq!(model._get_text("A2"), *"1");
-}
-
-#[test]
-fn test_datedif_md_month_end_edge_cases() {
-    let mut model = new_empty_model();
-
-    // 31 Jan 2021 → 28 Feb 2021 (non-leap) => 28
-    model._set("B1", "=DATEDIF(\"31/1/2021\", \"28/2/2021\", \"MD\")");
-
-    // 31 Jan 2020 → 29 Feb 2020 (leap) => 29
-    model._set("B2", "=DATEDIF(\"31/1/2020\", \"29/2/2020\", \"MD\")");
-
-    model.evaluate();
-
-    assert_eq!(model._get_text("B1"), *"28");
-    assert_eq!(model._get_text("B2"), *"29");
-}

base/src/test/test_days360_month_end.rs

@@ -1,43 +0,0 @@
-use crate::test::util::new_empty_model;
-
-#[test]
-fn test_days360_month_end_us() {
-    let mut model = new_empty_model();
-
-    // 31 Jan 2021 -> 28 Feb 2021 (non-leap)
-    model._set("A1", "=DAYS360(DATE(2021,1,31),DATE(2021,2,28))");
-
-    // 31 Jan 2020 -> 28 Feb 2020 (leap year – not last day of Feb)
-    model._set("A2", "=DAYS360(DATE(2020,1,31),DATE(2020,2,28))");
-
-    // 28 Feb 2020 -> 31 Mar 2020 (leap year span crossing month ends)
-    model._set("A3", "=DAYS360(DATE(2020,2,28),DATE(2020,3,31))");
-
-    // 30 Apr 2021 -> 31 May 2021 (end-of-month adjustment rule)
-    model._set("A4", "=DAYS360(DATE(2021,4,30),DATE(2021,5,31))");
-
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), *"30");
-    assert_eq!(model._get_text("A2"), *"28");
-    assert_eq!(model._get_text("A3"), *"33");
-    assert_eq!(model._get_text("A4"), *"30");
-}
-
-#[test]
-fn test_days360_month_end_european() {
-    let mut model = new_empty_model();
-
-    // European basis = TRUE (or 1)
-    model._set("B1", "=DAYS360(DATE(2021,1,31),DATE(2021,2,28),TRUE)");
-
-    model._set("B2", "=DAYS360(DATE(2020,1,31),DATE(2020,2,29),TRUE)");
-
-    model._set("B3", "=DAYS360(DATE(2021,8,31),DATE(2021,9,30),TRUE)");
-
-    model.evaluate();
-
-    assert_eq!(model._get_text("B1"), *"28");
-    assert_eq!(model._get_text("B2"), *"29");
-    assert_eq!(model._get_text("B3"), *"30");
-}

base/src/test/test_fn_concatenate.rs

@@ -22,14 +22,13 @@ fn fn_concatenate() {
     model._set("B1", r#"=CONCATENATE(A1, A2, A3, "!")"#);
     // This will break once we implement the implicit intersection operator
     // It should be:
-    model._set("C2", r#"=CONCATENATE(@A1:A3, "!")"#);
+    // model._set("B2", r#"=CONCATENATE(@A1:A3, "!")"#);
     model._set("B2", r#"=CONCATENATE(A1:A3, "!")"#);
     model._set("B3", r#"=CONCAT(A1:A3, "!")"#);
 
     model.evaluate();
 
     assert_eq!(model._get_text("B1"), *"Hello my World!");
-    assert_eq!(model._get_text("B2"), *"#N/IMPL!");
+    assert_eq!(model._get_text("B2"), *" my !");
     assert_eq!(model._get_text("B3"), *"Hello my World!");
-    assert_eq!(model._get_text("C2"), *" my !");
 }

base/src/test/test_fn_datevalue_datedif.rs

@@ -1,182 +0,0 @@
-#![allow(clippy::unwrap_used)]
-
-use crate::test::util::new_empty_model;
-use crate::types::Cell;
-
-// Helper to evaluate a formula and return the formatted text
-fn eval_formula(formula: &str) -> String {
-    let mut model = new_empty_model();
-    model._set("A1", formula);
-    model.evaluate();
-    model._get_text("A1")
-}
-
-// Helper that evaluates a formula and returns the raw value of A1 as a Result<f64, String>
-fn eval_formula_raw_number(formula: &str) -> Result<f64, String> {
-    let mut model = new_empty_model();
-    model._set("A1", formula);
-    model.evaluate();
-    match model._get_cell("A1") {
-        Cell::NumberCell { v, .. } => Ok(*v),
-        Cell::BooleanCell { v, .. } => Ok(if *v { 1.0 } else { 0.0 }),
-        Cell::ErrorCell { ei, .. } => Err(format!("{}", ei)),
-        _ => Err(model._get_text("A1")),
-    }
-}
-
-#[test]
-fn test_datevalue_basic_numeric() {
-    // DATEVALUE should return the serial number representing the date, **not** a formatted date
-    assert_eq!(
-        eval_formula_raw_number("=DATEVALUE(\"2/1/2023\")").unwrap(),
-        44958.0
-    );
-}
-
-#[test]
-fn test_datevalue_mmdd_with_leading_zero() {
-    assert_eq!(
-        eval_formula_raw_number("=DATEVALUE(\"02/01/2023\")").unwrap(),
-        44958.0
-    ); // 1-Feb-2023
-}
-
-#[test]
-fn test_datevalue_iso() {
-    assert_eq!(
-        eval_formula_raw_number("=DATEVALUE(\"2023-01-02\")").unwrap(),
-        44928.0
-    );
-}
-
-#[test]
-fn test_datevalue_month_name() {
-    assert_eq!(
-        eval_formula_raw_number("=DATEVALUE(\"2-Jan-23\")").unwrap(),
-        44928.0
-    );
-}
-
-#[test]
-fn test_datevalue_ambiguous_ddmm() {
-    // 01/02/2023 interpreted as MM/DD -> 2-Jan-2023
-    assert_eq!(
-        eval_formula_raw_number("=DATEVALUE(\"01/02/2023\")").unwrap(),
-        44929.0
-    );
-}
-
-#[test]
-fn test_datevalue_ddmm_unambiguous() {
-    // 15/01/2023 should be 15-Jan-2023 since 15 cannot be month
-    assert_eq!(
-        eval_formula_raw_number("=DATEVALUE(\"15/01/2023\")").unwrap(),
-        44941.0
-    );
-}
-
-#[test]
-fn test_datevalue_leap_day() {
-    assert_eq!(
-        eval_formula_raw_number("=DATEVALUE(\"29/02/2020\")").unwrap(),
-        43890.0
-    );
-}
-
-#[test]
-fn test_datevalue_year_first_text_month() {
-    assert_eq!(
-        eval_formula_raw_number("=DATEVALUE(\"2023/Jan/15\")").unwrap(),
-        44941.0
-    );
-}
-
-#[test]
-fn test_datevalue_mmdd_with_day_gt_12() {
-    assert_eq!(
-        eval_formula_raw_number("=DATEVALUE(\"6/15/2021\")").unwrap(),
-        44373.0
-    );
-}
-
-#[test]
-fn test_datevalue_error_conditions() {
-    let cases = [
-        "=DATEVALUE(\"31/04/2023\")",   // invalid day (Apr has 30 days)
-        "=DATEVALUE(\"13/13/2023\")",   // invalid month
-        "=DATEVALUE(\"not a date\")",   // non-date text
-    ];
-    for formula in cases {
-        let result = eval_formula(formula);
-        assert_eq!(result, *"#VALUE!", "Expected #VALUE! for {}", formula);
-    }
-}
-
-// Helper to set and evaluate a single DATEDIF call
-fn eval_datedif(unit: &str) -> String {
-    let mut model = new_empty_model();
-    let formula = format!("=DATEDIF(\"2020-01-01\", \"2021-06-15\", \"{}\")", unit);
-    model._set("A1", &formula);
-    model.evaluate();
-    model._get_text("A1")
-}
-
-#[test]
-fn test_datedif_y() {
-    assert_eq!(eval_datedif("Y"), *"1");
-}
-
-#[test]
-fn test_datedif_m() {
-    assert_eq!(eval_datedif("M"), *"17");
-}
-
-#[test]
-fn test_datedif_d() {
-    assert_eq!(eval_datedif("D"), *"531");
-}
-
-#[test]
-fn test_datedif_ym() {
-    assert_eq!(eval_datedif("YM"), *"5");
-}
-
-#[test]
-fn test_datedif_yd() {
-    assert_eq!(eval_datedif("YD"), *"165");
-}
-
-#[test]
-fn test_datedif_md() {
-    assert_eq!(eval_datedif("MD"), *"14");
-}
-
-#[test]
-fn test_datedif_edge_and_error_cases() {
-    let mut model = new_empty_model();
-    // Leap-year spanning
-    model._set("A1", "=DATEDIF(\"28/2/2020\", \"1/3/2020\", \"D\")");
-    // End date before start date => #NUM!
-    model._set("A2", "=DATEDIF(\"1/2/2021\", \"1/1/2021\", \"D\")");
-    // Invalid unit => #VALUE!
-    model._set("A3", "=DATEDIF(\"1/1/2020\", \"1/1/2021\", \"Z\")");
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), *"2");
-    assert_eq!(model._get_text("A2"), *"#NUM!");
-    assert_eq!(model._get_text("A3"), *"#VALUE!");
-}
-
-#[test]
-fn test_datedif_mixed_case_unit() {
-    assert_eq!(eval_datedif("yD"), *"165"); // mixed-case should work
-}
-
-#[test]
-fn test_datedif_error_propagation() {
-    // Invalid date in arguments should propagate #VALUE!
-    let mut model = new_empty_model();
-    model._set("A1", "=DATEDIF(\"bad\", \"bad\", \"Y\")");
-    model.evaluate();
-    assert_eq!(model._get_text("A1"), *"#VALUE!");
-}

base/src/test/test_fn_formulatext.rs

@@ -30,18 +30,8 @@ fn implicit_intersection() {
     model._set("A2", "=FORMULATEXT(D1:E1)");
     model.evaluate();
 
-    assert_eq!(model._get_text("A1"), *"#N/IMPL!");
+    assert_eq!(model._get_text("A1"), *"#ERROR!");
-    assert_eq!(model._get_text("A2"), *"#N/IMPL!");
+    assert_eq!(model._get_text("A2"), *"#ERROR!");
-}
-
-#[test]
-fn implicit_intersection_operator() {
-    let mut model = new_empty_model();
-    model._set("A1", "=1 +  2");
-    model._set("B1", "=FORMULATEXT(@A:A)");
-    model.evaluate();
-
-    assert_eq!(model._get_text("B1"), *"#N/IMPL!");
 }
 
 #[test]

base/src/test/test_fn_or_xor.rs

@@ -174,7 +174,7 @@ fn fn_or_xor_no_arguments() {
         println!("Testing function: {func}");
 
         let mut model = new_empty_model();
-        model._set("A1", &format!("={func}()"));
+        model._set("A1", &format!("={}()", func));
         model.evaluate();
         assert_eq!(model._get_text("A1"), *"#ERROR!");
     }

base/src/test/test_fn_round.rs

@@ -1,15 +0,0 @@
-#![allow(clippy::unwrap_used)]
-
-use crate::test::util::new_empty_model;
-
-#[test]
-fn fn_round_approximation() {
-    let mut model = new_empty_model();
-    model._set("A1", "=ROUND(1.05*(0.0284+0.0046)-0.0284,4)");
-    model._set("A2", "=ROUNDDOWN(1.05*(0.0284+0.0046)-0.0284,5)");
-
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), *"0.0063");
-    assert_eq!(model._get_text("A2"), *"0.00625");
-}

base/src/test/test_fn_sum.rs

@@ -17,19 +17,3 @@ fn test_fn_sum_arguments() {
     assert_eq!(model._get_text("A3"), *"1");
     assert_eq!(model._get_text("A4"), *"4");
 }
-
-#[test]
-fn arrays() {
-    let mut model = new_empty_model();
-    model._set("A1", "=SUM({1, 2, 3})");
-    model._set("A2", "=SUM({1; 2; 3})");
-    model._set("A3", "=SUM({1, 2; 3, 4})");
-    model._set("A4", "=SUM({1, 2; 3, 4; 5, 6})");
-
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), *"6");
-    assert_eq!(model._get_text("A2"), *"6");
-    assert_eq!(model._get_text("A3"), *"10");
-    assert_eq!(model._get_text("A4"), *"21");
-}

base/src/test/test_fn_time.rs

@@ -1,520 +0,0 @@
-#![allow(clippy::unwrap_used)]
-
-use crate::test::util::new_empty_model;
-
-// Helper constants for common time values with detailed documentation
-const MIDNIGHT: &str = "0"; // 00:00:00 = 0/24 = 0
-const NOON: &str = "0.5"; // 12:00:00 = 12/24 = 0.5
-const TIME_14_30: &str = "0.604166667"; // 14:30:00 = 14.5/24 ≈ 0.604166667
-const TIME_14_30_45: &str = "0.6046875"; // 14:30:45 = 14.5125/24 = 0.6046875
-const TIME_14_30_59: &str = "0.604849537"; // 14:30:59 (from floored fractional inputs)
-const TIME_23_59_59: &str = "0.999988426"; // 23:59:59 = 23.99972.../24 ≈ 0.999988426
-
-// Excel documentation test values with explanations
-const TIME_2_24_AM: &str = "0.1"; // 2:24 AM = 2.4/24 = 0.1
-const TIME_2_PM: &str = "0.583333333"; // 2:00 PM = 14/24 ≈ 0.583333333
-const TIME_6_45_PM: &str = "0.78125"; // 6:45 PM = 18.75/24 = 0.78125
-const TIME_6_35_AM: &str = "0.274305556"; // 6:35 AM = 6.583333.../24 ≈ 0.274305556
-const TIME_2_30_AM: &str = "0.104166667"; // 2:30 AM = 2.5/24 ≈ 0.104166667
-const TIME_1_AM: &str = "0.041666667"; // 1:00 AM = 1/24 ≈ 0.041666667
-const TIME_9_PM: &str = "0.875"; // 9:00 PM = 21/24 = 0.875
-const TIME_2_AM: &str = "0.083333333"; // 2:00 AM = 2/24 ≈ 0.083333333
-                                       // Additional helper: 1-second past midnight (00:00:01)
-const TIME_00_00_01: &str = "0.000011574"; // 1 second = 1/86400 ≈ 0.000011574
-
-/// Helper function to set up and evaluate a model with time expressions
-fn test_time_expressions(expressions: &[(&str, &str)]) -> crate::model::Model {
-    let mut model = new_empty_model();
-    for (cell, formula) in expressions {
-        model._set(cell, formula);
-    }
-    model.evaluate();
-    model
-}
-
-/// Helper function to test component extraction for a given time value
-/// Returns (hour, minute, second) as strings
-fn test_component_extraction(time_value: &str) -> (String, String, String) {
-    let model = test_time_expressions(&[
-        ("A1", &format!("=HOUR({time_value})")),
-        ("B1", &format!("=MINUTE({time_value})")),
-        ("C1", &format!("=SECOND({time_value})")),
-    ]);
-    (
-        model._get_text("A1").to_string(),
-        model._get_text("B1").to_string(),
-        model._get_text("C1").to_string(),
-    )
-}
-
-#[test]
-fn test_excel_timevalue_compatibility() {
-    // Test cases based on Excel's official documentation and examples
-    let model = test_time_expressions(&[
-        // Excel documentation examples
-        ("A1", "=TIMEVALUE(\"2:24 AM\")"), // Should be 0.1
-        ("A2", "=TIMEVALUE(\"2 PM\")"),    // Should be 0.583333... (14/24)
-        ("A3", "=TIMEVALUE(\"6:45 PM\")"), // Should be 0.78125 (18.75/24)
-        ("A4", "=TIMEVALUE(\"18:45\")"),   // Same as above, 24-hour format
-        // Date-time format (date should be ignored)
-        ("B1", "=TIMEVALUE(\"22-Aug-2011 6:35 AM\")"), // Should be ~0.2743
-        ("B2", "=TIMEVALUE(\"2023-01-01 14:30:00\")"), // Should be 0.604166667
-        // Edge cases that Excel should support
-        ("C1", "=TIMEVALUE(\"12:00 AM\")"),    // Midnight: 0
-        ("C2", "=TIMEVALUE(\"12:00 PM\")"),    // Noon: 0.5
-        ("C3", "=TIMEVALUE(\"11:59:59 PM\")"), // Almost midnight: 0.999988426
-        // Single digit variations
-        ("D1", "=TIMEVALUE(\"1 AM\")"),  // 1:00 AM
-        ("D2", "=TIMEVALUE(\"9 PM\")"),  // 9:00 PM
-        ("D3", "=TIMEVALUE(\"12 AM\")"), // Midnight
-        ("D4", "=TIMEVALUE(\"12 PM\")"), // Noon
-    ]);
-
-    // Excel documentation examples - verify exact values
-    assert_eq!(model._get_text("A1"), *TIME_2_24_AM); // 2:24 AM
-    assert_eq!(model._get_text("A2"), *TIME_2_PM); // 2 PM = 14:00
-    assert_eq!(model._get_text("A3"), *TIME_6_45_PM); // 6:45 PM = 18:45
-    assert_eq!(model._get_text("A4"), *TIME_6_45_PM); // 18:45 (24-hour)
-
-    // Date-time formats (date ignored, extract time only)
-    assert_eq!(model._get_text("B1"), *TIME_6_35_AM); // 6:35 AM ≈ 0.2743
-    assert_eq!(model._get_text("B2"), *TIME_14_30); // 14:30:00
-
-    // Edge cases
-    assert_eq!(model._get_text("C1"), *MIDNIGHT); // 12:00 AM = 00:00
-    assert_eq!(model._get_text("C2"), *NOON); // 12:00 PM = 12:00
-    assert_eq!(model._get_text("C3"), *TIME_23_59_59); // 11:59:59 PM
-
-    // Single digit hours
-    assert_eq!(model._get_text("D1"), *TIME_1_AM); // 1:00 AM
-    assert_eq!(model._get_text("D2"), *TIME_9_PM); // 9:00 PM = 21:00
-    assert_eq!(model._get_text("D3"), *MIDNIGHT); // 12 AM = 00:00
-    assert_eq!(model._get_text("D4"), *NOON); // 12 PM = 12:00
-}
-
-#[test]
-fn test_time_function_basic_cases() {
-    let model = test_time_expressions(&[
-        ("A1", "=TIME(0,0,0)"),    // Midnight
-        ("A2", "=TIME(12,0,0)"),   // Noon
-        ("A3", "=TIME(14,30,0)"),  // 2:30 PM
-        ("A4", "=TIME(23,59,59)"), // Max time
-    ]);
-
-    assert_eq!(model._get_text("A1"), *MIDNIGHT);
-    assert_eq!(model._get_text("A2"), *NOON);
-    assert_eq!(model._get_text("A3"), *TIME_14_30);
-    assert_eq!(model._get_text("A4"), *TIME_23_59_59);
-}
-
-#[test]
-fn test_time_function_normalization() {
-    let model = test_time_expressions(&[
-        ("A1", "=TIME(25,0,0)"),         // Hours > 24 wrap around
-        ("A2", "=TIME(48,0,0)"),         // 48 hours = 0 (2 full days)
-        ("A3", "=TIME(0,90,0)"),         // 90 minutes = 1.5 hours
-        ("A4", "=TIME(0,0,90)"),         // 90 seconds = 1.5 minutes
-        ("A5", "=TIME(14.9,30.9,59.9)"), // Fractional inputs floored to 14:30:59
-    ]);
-
-    assert_eq!(model._get_text("A1"), *TIME_1_AM); // 1:00:00
-    assert_eq!(model._get_text("A2"), *MIDNIGHT); // 0:00:00
-    assert_eq!(model._get_text("A3"), *"0.0625"); // 1:30:00
-    assert_eq!(model._get_text("A4"), *"0.001041667"); // 0:01:30
-    assert_eq!(model._get_text("A5"), *TIME_14_30_59); // 14:30:59 (floored)
-}
-
-#[test]
-fn test_time_function_precision_edge_cases() {
-    let model = test_time_expressions(&[
-        // High precision fractional seconds
-        ("A1", "=TIME(14,30,45.999)"), // Fractional seconds should be floored
-        ("A2", "=SECOND(TIME(14,30,45.999))"), // Should extract 45, not 46
-        // Very large normalization values
-        ("B1", "=TIME(999,999,999)"), // Extreme normalization test
-        ("B2", "=HOUR(999.5)"),       // Multiple days, extract hour from fractional part
-        ("B3", "=MINUTE(999.75)"),    // Multiple days, extract minute
-        // Boundary conditions at rollover points
-        ("C1", "=TIME(24,60,60)"), // Should normalize to next day (00:01:00)
-        ("C2", "=HOUR(0.999999999)"), // Almost 24 hours should be 23
-        ("C3", "=MINUTE(0.999999999)"), // Almost 24 hours, extract minutes
-        ("C4", "=SECOND(0.999999999)"), // Almost 24 hours, extract seconds
-        // Precision at boundaries
-        ("D1", "=TIME(23,59,59.999)"), // Very close to midnight
-        ("D2", "=TIME(0,0,0.001)"),    // Just after midnight
-    ]);
-
-    // Fractional seconds are floored
-    assert_eq!(model._get_text("A2"), *"45"); // 45.999 floored to 45
-
-    // Multiple days should work with rem_euclid
-    assert_eq!(model._get_text("B2"), *"12"); // 999.5 days, hour = 12 (noon)
-
-    // Boundary normalization
-    assert_eq!(model._get_text("C1"), *"0.042361111"); // 24:60:60 = 01:01:00 (normalized)
-    assert_eq!(model._get_text("C2"), *"23"); // Almost 24 hours = 23:xx:xx
-
-    // High precision should be handled correctly
-    let result_d1 = model._get_text("D1").parse::<f64>().unwrap();
-    assert!(result_d1 < 1.0 && result_d1 > 0.999); // Very close to but less than 1.0
-}
-
-#[test]
-fn test_time_function_errors() {
-    let model = test_time_expressions(&[
-        ("A1", "=TIME()"),          // Wrong arg count
-        ("A2", "=TIME(12)"),        // Wrong arg count
-        ("A3", "=TIME(12,30,0,0)"), // Wrong arg count
-        ("B1", "=TIME(-1,0,0)"),    // Negative hour
-        ("B2", "=TIME(0,-1,0)"),    // Negative minute
-        ("B3", "=TIME(0,0,-1)"),    // Negative second
-    ]);
-
-    // Wrong argument count
-    assert_eq!(model._get_text("A1"), *"#ERROR!");
-    assert_eq!(model._get_text("A2"), *"#ERROR!");
-    assert_eq!(model._get_text("A3"), *"#ERROR!");
-
-    // Negative values should return #NUM! error
-    assert_eq!(model._get_text("B1"), *"#NUM!");
-    assert_eq!(model._get_text("B2"), *"#NUM!");
-    assert_eq!(model._get_text("B3"), *"#NUM!");
-}
-
-#[test]
-fn test_timevalue_function_formats() {
-    let model = test_time_expressions(&[
-        // Basic formats
-        ("A1", "=TIMEVALUE(\"14:30\")"),
-        ("A2", "=TIMEVALUE(\"14:30:45\")"),
-        ("A3", "=TIMEVALUE(\"00:00:00\")"),
-        // AM/PM formats
-        ("B1", "=TIMEVALUE(\"2:30 PM\")"),
-        ("B2", "=TIMEVALUE(\"2:30 AM\")"),
-        ("B3", "=TIMEVALUE(\"12:00 PM\")"), // Noon
-        ("B4", "=TIMEVALUE(\"12:00 AM\")"), // Midnight
-        // Single hour with AM/PM (now supported!)
-        ("B5", "=TIMEVALUE(\"2 PM\")"),
-        ("B6", "=TIMEVALUE(\"2 AM\")"),
-        // Date-time formats (extract time only)
-        ("C1", "=TIMEVALUE(\"2023-01-01 14:30:00\")"),
-        ("C2", "=TIMEVALUE(\"2023-01-01T14:30:00\")"),
-        // Whitespace handling
-        ("D1", "=TIMEVALUE(\" 14:30 \")"),
-    ]);
-
-    // Basic formats
-    assert_eq!(model._get_text("A1"), *TIME_14_30);
-    assert_eq!(model._get_text("A2"), *TIME_14_30_45);
-    assert_eq!(model._get_text("A3"), *MIDNIGHT);
-
-    // AM/PM formats
-    assert_eq!(model._get_text("B1"), *TIME_14_30); // 2:30 PM = 14:30
-    assert_eq!(model._get_text("B2"), *TIME_2_30_AM); // 2:30 AM
-    assert_eq!(model._get_text("B3"), *NOON); // 12:00 PM = noon
-    assert_eq!(model._get_text("B4"), *MIDNIGHT); // 12:00 AM = midnight
-
-    // Single hour AM/PM formats (now supported!)
-    assert_eq!(model._get_text("B5"), *TIME_2_PM); // 2 PM = 14:00
-    assert_eq!(model._get_text("B6"), *TIME_2_AM); // 2 AM = 02:00
-
-    // Date-time formats
-    assert_eq!(model._get_text("C1"), *TIME_14_30);
-    assert_eq!(model._get_text("C2"), *TIME_14_30);
-
-    // Whitespace
-    assert_eq!(model._get_text("D1"), *TIME_14_30);
-}
-
-#[test]
-fn test_timevalue_function_errors() {
-    let model = test_time_expressions(&[
-        ("A1", "=TIMEVALUE()"),                 // Wrong arg count
-        ("A2", "=TIMEVALUE(\"14:30\", \"x\")"), // Wrong arg count
-        ("B1", "=TIMEVALUE(\"invalid\")"),      // Invalid format
-        ("B2", "=TIMEVALUE(\"25:00\")"),        // Invalid hour
-        ("B3", "=TIMEVALUE(\"14:70\")"),        // Invalid minute
-        ("B4", "=TIMEVALUE(\"\")"),             // Empty string
-        ("B5", "=TIMEVALUE(\"2PM\")"),          // Missing space (still unsupported)
-    ]);
-
-    // Wrong argument count should return #ERROR!
-    assert_eq!(model._get_text("A1"), *"#ERROR!");
-    assert_eq!(model._get_text("A2"), *"#ERROR!");
-
-    // Invalid formats should return #VALUE!
-    assert_eq!(model._get_text("B1"), *"#VALUE!");
-    assert_eq!(model._get_text("B2"), *"#VALUE!");
-    assert_eq!(model._get_text("B3"), *"#VALUE!");
-    assert_eq!(model._get_text("B4"), *"#VALUE!");
-    assert_eq!(model._get_text("B5"), *"#VALUE!"); // "2PM" no space - not supported
-}
-
-#[test]
-fn test_time_component_extraction_comprehensive() {
-    // Test component extraction using helper function for consistency
-
-    // Test basic time values
-    let test_cases = [
-        (MIDNIGHT, ("0", "0", "0")),         // 00:00:00
-        (NOON, ("12", "0", "0")),            // 12:00:00
-        (TIME_14_30, ("14", "30", "0")),     // 14:30:00
-        (TIME_23_59_59, ("23", "59", "59")), // 23:59:59
-    ];
-
-    for (time_value, expected) in test_cases {
-        let (hour, minute, second) = test_component_extraction(time_value);
-        assert_eq!(hour, expected.0, "Hour mismatch for {time_value}");
-        assert_eq!(minute, expected.1, "Minute mismatch for {time_value}");
-        assert_eq!(second, expected.2, "Second mismatch for {time_value}");
-    }
-
-    // Test multiple days (extract from fractional part)
-    let (hour, minute, second) = test_component_extraction("1.5"); // Day 2, 12:00
-    assert_eq!(
-        (hour, minute, second),
-        ("12".to_string(), "0".to_string(), "0".to_string())
-    );
-
-    let (hour, minute, second) = test_component_extraction("100.604166667"); // Day 101, 14:30
-    assert_eq!(
-        (hour, minute, second),
-        ("14".to_string(), "30".to_string(), "0".to_string())
-    );
-
-    // Test precision at boundaries
-    let (hour, _, _) = test_component_extraction("0.041666666"); // Just under 1:00 AM
-    assert_eq!(hour, "0");
-
-    let (hour, _, _) = test_component_extraction("0.041666667"); // Exactly 1:00 AM
-    assert_eq!(hour, "1");
-
-    let (hour, _, _) = test_component_extraction("0.041666668"); // Just over 1:00 AM
-    assert_eq!(hour, "1");
-
-    // Test very large day values
-    let (hour, minute, second) = test_component_extraction("1000000.25"); // Million days + 6 hours
-    assert_eq!(
-        (hour, minute, second),
-        ("6".to_string(), "0".to_string(), "0".to_string())
-    );
-}
-
-#[test]
-fn test_time_component_function_errors() {
-    let model = test_time_expressions(&[
-        // Wrong argument counts
-        ("A1", "=HOUR()"),       // No arguments
-        ("A2", "=MINUTE()"),     // No arguments
-        ("A3", "=SECOND()"),     // No arguments
-        ("A4", "=HOUR(1, 2)"),   // Too many arguments
-        ("A5", "=MINUTE(1, 2)"), // Too many arguments
-        ("A6", "=SECOND(1, 2)"), // Too many arguments
-        // Negative values should return #NUM!
-        ("B1", "=HOUR(-0.5)"),        // Negative value
-        ("B2", "=MINUTE(-1)"),        // Negative value
-        ("B3", "=SECOND(-1)"),        // Negative value
-        ("B4", "=HOUR(-0.000001)"),   // Slightly negative
-        ("B5", "=MINUTE(-0.000001)"), // Slightly negative
-        ("B6", "=SECOND(-0.000001)"), // Slightly negative
-    ]);
-
-    // Wrong argument count should return #ERROR!
-    assert_eq!(model._get_text("A1"), *"#ERROR!");
-    assert_eq!(model._get_text("A2"), *"#ERROR!");
-    assert_eq!(model._get_text("A3"), *"#ERROR!");
-    assert_eq!(model._get_text("A4"), *"#ERROR!");
-    assert_eq!(model._get_text("A5"), *"#ERROR!");
-    assert_eq!(model._get_text("A6"), *"#ERROR!");
-
-    // Negative values should return #NUM!
-    assert_eq!(model._get_text("B1"), *"#NUM!");
-    assert_eq!(model._get_text("B2"), *"#NUM!");
-    assert_eq!(model._get_text("B3"), *"#NUM!");
-    assert_eq!(model._get_text("B4"), *"#NUM!");
-    assert_eq!(model._get_text("B5"), *"#NUM!");
-    assert_eq!(model._get_text("B6"), *"#NUM!");
-}
-
-#[test]
-fn test_time_functions_integration() {
-    // Test how TIME, TIMEVALUE and component extraction functions work together
-    let model = test_time_expressions(&[
-        // Create times with both functions
-        ("A1", "=TIME(14,30,45)"),
-        ("A2", "=TIMEVALUE(\"14:30:45\")"),
-        // Extract components from TIME function results
-        ("B1", "=HOUR(A1)"),
-        ("B2", "=MINUTE(A1)"),
-        ("B3", "=SECOND(A1)"),
-        // Extract components from TIMEVALUE function results
-        ("C1", "=HOUR(A2)"),
-        ("C2", "=MINUTE(A2)"),
-        ("C3", "=SECOND(A2)"),
-        // Test additional TIME variations
-        ("D1", "=TIME(14,0,0)"), // 14:00:00
-        ("E1", "=HOUR(D1)"),     // Extract hour from 14:00:00
-        ("E2", "=MINUTE(D1)"),   // Extract minute from 14:00:00
-        ("E3", "=SECOND(D1)"),   // Extract second from 14:00:00
-    ]);
-
-    // TIME and TIMEVALUE should produce equivalent results
-    assert_eq!(model._get_text("A1"), model._get_text("A2"));
-
-    // Extracting components should work consistently
-    assert_eq!(model._get_text("B1"), *"14");
-    assert_eq!(model._get_text("B2"), *"30");
-    assert_eq!(model._get_text("B3"), *"45");
-    assert_eq!(model._get_text("C1"), *"14");
-    assert_eq!(model._get_text("C2"), *"30");
-    assert_eq!(model._get_text("C3"), *"45");
-
-    // Components from TIME(14,0,0)
-    assert_eq!(model._get_text("E1"), *"14");
-    assert_eq!(model._get_text("E2"), *"0");
-    assert_eq!(model._get_text("E3"), *"0");
-}
-
-#[test]
-fn test_time_function_extreme_values() {
-    // Test missing edge cases: very large fractional inputs
-    let model = test_time_expressions(&[
-        // Extremely large fractional values to TIME function
-        ("A1", "=TIME(999999.9, 999999.9, 999999.9)"), // Very large fractional inputs
-        ("A2", "=TIME(1e6, 1e6, 1e6)"),                // Scientific notation inputs
-        ("A3", "=TIME(0.000001, 0.000001, 0.000001)"), // Very small fractional inputs
-        // Large day values for component extraction (stress test)
-        ("B1", "=HOUR(999999.999)"), // Almost a million days
-        ("B2", "=MINUTE(999999.999)"),
-        ("B3", "=SECOND(999999.999)"),
-        // Edge case: exactly 1.0 (should be midnight of next day)
-        ("C1", "=HOUR(1.0)"),
-        ("C2", "=MINUTE(1.0)"),
-        ("C3", "=SECOND(1.0)"),
-        // Very high precision values
-        ("D1", "=HOUR(0.999999999999)"), // Almost exactly 24:00:00
-        ("D2", "=MINUTE(0.999999999999)"),
-        ("D3", "=SECOND(0.999999999999)"),
-    ]);
-
-    // Large fractional inputs should be floored and normalized
-    let result_a1 = model._get_text("A1").parse::<f64>().unwrap();
-    assert!(
-        (0.0..1.0).contains(&result_a1),
-        "Result should be valid time fraction"
-    );
-
-    // Component extraction should work with very large values
-    let hour_b1 = model._get_text("B1").parse::<i32>().unwrap();
-    assert!((0..=23).contains(&hour_b1), "Hour should be 0-23");
-
-    // Exactly 1.0 should be midnight (start of next day)
-    assert_eq!(model._get_text("C1"), *"0");
-    assert_eq!(model._get_text("C2"), *"0");
-    assert_eq!(model._get_text("C3"), *"0");
-
-    // Very high precision should still extract valid components
-    let hour_d1 = model._get_text("D1").parse::<i32>().unwrap();
-    assert!((0..=23).contains(&hour_d1), "Hour should be 0-23");
-}
-
-#[test]
-fn test_timevalue_malformed_but_parseable() {
-    // Test missing edge case: malformed but potentially parseable strings
-    let model = test_time_expressions(&[
-        // Test various malformed but potentially parseable time strings
-        ("A1", "=TIMEVALUE(\"14:30:00.123\")"), // Milliseconds (might be truncated)
-        ("A2", "=TIMEVALUE(\"14:30:00.999\")"), // High precision milliseconds
-        ("A3", "=TIMEVALUE(\"02:30:00\")"),     // Leading zero hours
-        ("A4", "=TIMEVALUE(\"2:05:00\")"),      // Single digit hour, zero-padded minute
-        // Boundary cases for AM/PM parsing
-        ("B1", "=TIMEVALUE(\"11:59:59 PM\")"), // Just before midnight
-        ("B2", "=TIMEVALUE(\"12:00:01 AM\")"), // Just after midnight
-        ("B3", "=TIMEVALUE(\"12:00:01 PM\")"), // Just after noon
-        ("B4", "=TIMEVALUE(\"11:59:59 AM\")"), // Just before noon
-        // Test various date-time combinations
-        ("C1", "=TIMEVALUE(\"2023-12-31T23:59:59\")"), // ISO format at year end
-        ("C2", "=TIMEVALUE(\"2023-01-01 00:00:01\")"), // New year, just after midnight
-        // Test potential edge cases that might still be parseable
-        ("D1", "=TIMEVALUE(\"24:00:00\")"), // Should error (invalid hour)
-        ("D2", "=TIMEVALUE(\"23:60:00\")"), // Should error (invalid minute)
-        ("D3", "=TIMEVALUE(\"23:59:60\")"), // Should error (invalid second)
-    ]);
-
-    // Milliseconds are not supported, should return a #VALUE! error like Excel
-    assert_eq!(model._get_text("A1"), *"#VALUE!");
-    assert_eq!(model._get_text("A2"), *"#VALUE!");
-
-    // Leading zeros should work fine
-    assert_eq!(model._get_text("A3"), *TIME_2_30_AM); // 02:30:00 should parse as 2:30:00
-
-    // AM/PM boundary cases should work
-    let result_b1 = model._get_text("B1").parse::<f64>().unwrap();
-    assert!(
-        result_b1 > 0.99 && result_b1 < 1.0,
-        "11:59:59 PM should be very close to 1.0"
-    );
-
-    let result_b2 = model._get_text("B2").parse::<f64>().unwrap();
-    assert!(
-        result_b2 > 0.0 && result_b2 < 0.01,
-        "12:00:01 AM should be very close to 0.0"
-    );
-
-    // ISO 8601 format with "T" separator should be parsed correctly
-    assert_eq!(model._get_text("C1"), *TIME_23_59_59); // 23:59:59 → almost midnight
-    assert_eq!(model._get_text("C2"), *TIME_00_00_01); // 00:00:01 → one second past midnight
-
-    // Time parser normalizes edge cases to midnight (Excel compatibility)
-    assert_eq!(model._get_text("D1"), *"0"); // 24:00:00 = midnight of next day
-    assert_eq!(model._get_text("D2"), *"0"); // 23:60:00 normalizes to 24:00:00 = midnight
-    assert_eq!(model._get_text("D3"), *"0"); // 23:59:60 normalizes to 24:00:00 = midnight
-}
-
-#[test]
-fn test_performance_stress_with_extreme_values() {
-    // Test performance/stress cases with extreme values
-    let model = test_time_expressions(&[
-        // Very large numbers that should still work
-        ("A1", "=TIME(2147483647, 0, 0)"), // Max i32 hours
-        ("A2", "=TIME(0, 2147483647, 0)"), // Max i32 minutes
-        ("A3", "=TIME(0, 0, 2147483647)"), // Max i32 seconds
-        // Component extraction with extreme day values
-        ("B1", "=HOUR(1e15)"), // Very large day number
-        ("B2", "=MINUTE(1e15)"),
-        ("B3", "=SECOND(1e15)"),
-        // Edge of floating point precision
-        ("C1", "=HOUR(1.7976931348623157e+308)"), // Near max f64
-        ("C2", "=HOUR(2.2250738585072014e-308)"), // Near min positive f64
-        // Multiple TIME function calls with large values
-        ("D1", "=TIME(1000000, 1000000, 1000000)"), // Large normalized values
-        ("D2", "=HOUR(D1)"),                        // Extract from large TIME result
-        ("D3", "=MINUTE(D1)"),
-        ("D4", "=SECOND(D1)"),
-    ]);
-
-    // All results should be valid (not errors) even with extreme inputs
-    for cell in ["A1", "A2", "A3", "B1", "B2", "B3", "D1", "D2", "D3", "D4"] {
-        let result = model._get_text(cell);
-        assert!(
-            result != *"#ERROR!" && result != *"#NUM!" && result != *"#VALUE!",
-            "Cell {cell} should not error with extreme values: {result}",
-        );
-    }
-
-    // Results should be mathematically valid
-    let hour_b1 = model._get_text("B1").parse::<i32>().unwrap();
-    let minute_b2 = model._get_text("B2").parse::<i32>().unwrap();
-    let second_b3 = model._get_text("B3").parse::<i32>().unwrap();
-
-    assert!((0..=23).contains(&hour_b1));
-    assert!((0..=59).contains(&minute_b2));
-    assert!((0..=59).contains(&second_b3));
-
-    // TIME function results should be valid time fractions
-    let time_d1 = model._get_text("D1").parse::<f64>().unwrap();
-    assert!(
-        (0.0..1.0).contains(&time_d1),
-        "TIME result should be valid fraction"
-    );
-}

base/src/test/test_forward_references.rs

@@ -0,0 +1,121 @@
+#![allow(clippy::unwrap_used)]
+
+use crate::expressions::types::{Area, CellReferenceIndex};
+use crate::test::util::new_empty_model;
+
+#[test]
+fn test_forward_references() {
+    let mut model = new_empty_model();
+
+    // test single ref changed nd not changed
+    model._set("H8", "=F6*G9");
+    // tests areas
+    model._set("H9", "=SUM(D4:F6)");
+    // absolute coordinates
+    model._set("H10", "=$F$6");
+    // area larger than the source area
+    model._set("H11", "=SUM(D3:F6)");
+    // Test arguments and concat
+    model._set("H12", "=SUM(F6, D4:F6) & D4");
+    // Test range operator. This is syntax error for now.
+    // model._set("H13", "=SUM(D4:INDEX(D4:F5,4,2))");
+    // Test operations
+    model._set("H14", "=-D4+D5*F6/F5");
+
+    model.evaluate();
+
+    // Source Area is D4:F6
+    let source_area = &Area {
+        sheet: 0,
+        row: 4,
+        column: 4,
+        width: 3,
+        height: 3,
+    };
+
+    // We paste in B10
+    let target_row = 10;
+    let target_column = 2;
+    let result = model.forward_references(
+        source_area,
+        &CellReferenceIndex {
+            sheet: 0,
+            row: target_row,
+            column: target_column,
+        },
+    );
+    assert!(result.is_ok());
+    model.evaluate();
+
+    assert_eq!(model._get_formula("H8"), "=D12*G9");
+    assert_eq!(model._get_formula("H9"), "=SUM(B10:D12)");
+    assert_eq!(model._get_formula("H10"), "=$D$12");
+
+    assert_eq!(model._get_formula("H11"), "=SUM(D3:F6)");
+    assert_eq!(model._get_formula("H12"), "=SUM(D12,B10:D12)&B10");
+    // assert_eq!(model._get_formula("H13"), "=SUM(B10:INDEX(B10:D11,4,2))");
+    assert_eq!(model._get_formula("H14"), "=-B10+B11*D12/D11");
+}
+
+#[test]
+fn test_different_sheet() {
+    let mut model = new_empty_model();
+
+    // test single ref changed not changed
+    model._set("H8", "=F6*G9");
+    // tests areas
+    model._set("H9", "=SUM(D4:F6)");
+    // absolute coordinates
+    model._set("H10", "=$F$6");
+    // area larger than the source area
+    model._set("H11", "=SUM(D3:F6)");
+    // Test arguments and concat
+    model._set("H12", "=SUM(F6, D4:F6) & D4");
+    // Test range operator. This is syntax error for now.
+    // model._set("H13", "=SUM(D4:INDEX(D4:F5,4,2))");
+    // Test operations
+    model._set("H14", "=-D4+D5*F6/F5");
+
+    // Adds a new sheet
+    assert!(model.add_sheet("Sheet2").is_ok());
+
+    model.evaluate();
+
+    // Source Area is D4:F6
+    let source_area = &Area {
+        sheet: 0,
+        row: 4,
+        column: 4,
+        width: 3,
+        height: 3,
+    };
+
+    // We paste in Sheet2!B10
+    let target_row = 10;
+    let target_column = 2;
+    let result = model.forward_references(
+        source_area,
+        &CellReferenceIndex {
+            sheet: 1,
+            row: target_row,
+            column: target_column,
+        },
+    );
+    assert!(result.is_ok());
+    model.evaluate();
+
+    assert_eq!(model._get_formula("H8"), "=Sheet2!D12*G9");
+    assert_eq!(model._get_formula("H9"), "=SUM(Sheet2!B10:D12)");
+    assert_eq!(model._get_formula("H10"), "=Sheet2!$D$12");
+
+    assert_eq!(model._get_formula("H11"), "=SUM(D3:F6)");
+    assert_eq!(
+        model._get_formula("H12"),
+        "=SUM(Sheet2!D12,Sheet2!B10:D12)&Sheet2!B10"
+    );
+    // assert_eq!(model._get_formula("H13"), "=SUM(B10:INDEX(B10:D11,4,2))");
+    assert_eq!(
+        model._get_formula("H14"),
+        "=-Sheet2!B10+Sheet2!B11*Sheet2!D12/Sheet2!D11"
+    );
+}

base/src/test/test_implicit_intersection.rs

@@ -1,50 +0,0 @@
-#![allow(clippy::unwrap_used)]
-
-use crate::test::util::new_empty_model;
-
-#[test]
-fn simple_colum() {
-    let mut model = new_empty_model();
-    // We populate cells A1 to A3
-    model._set("A1", "1");
-    model._set("A2", "2");
-    model._set("A3", "3");
-
-    model._set("C2", "=@A1:A3");
-
-    model.evaluate();
-
-    assert_eq!(model._get_text("C2"), "2".to_string());
-}
-
-#[test]
-fn return_of_array_is_n_impl() {
-    let mut model = new_empty_model();
-    // We populate cells A1 to A3
-    model._set("A1", "1");
-    model._set("A2", "2");
-    model._set("A3", "3");
-
-    model._set("C2", "=A1:A3");
-    model._set("D2", "=SUM(SIN(A:A)");
-
-    model.evaluate();
-
-    assert_eq!(model._get_text("C2"), "#N/IMPL!".to_string());
-    assert_eq!(model._get_text("D2"), "1.89188842".to_string());
-}
-
-#[test]
-fn concat() {
-    let mut model = new_empty_model();
-    model._set("A1", "=CONCAT(@B1:B3)");
-    model._set("A2", "=CONCAT(B1:B3)");
-    model._set("B1", "Hello");
-    model._set("B2", " ");
-    model._set("B3", "world!");
-
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), *"Hello");
-    assert_eq!(model._get_text("A2"), *"Hello world!");
-}

base/src/test/test_ln.rs

@@ -1,17 +0,0 @@
-#![allow(clippy::unwrap_used)]
-
-use crate::test::util::new_empty_model;
-
-#[test]
-fn arguments() {
-    let mut model = new_empty_model();
-    model._set("A1", "=LN(100)");
-    model._set("A2", "=LN()");
-    model._set("A3", "=LN(100, 10)");
-
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), *"4.605170186");
-    assert_eq!(model._get_text("A2"), *"#ERROR!");
-    assert_eq!(model._get_text("A3"), *"#ERROR!");
-}

base/src/test/test_log.rs

@@ -1,19 +0,0 @@
-#![allow(clippy::unwrap_used)]
-
-use crate::test::util::new_empty_model;
-
-#[test]
-fn arguments() {
-    let mut model = new_empty_model();
-    model._set("A1", "=LOG(100)");
-    model._set("A2", "=LOG()");
-    model._set("A3", "=LOG(10000, 10)");
-    model._set("A4", "=LOG(100, 10, 1)");
-
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), *"2");
-    assert_eq!(model._get_text("A2"), *"#ERROR!");
-    assert_eq!(model._get_text("A3"), *"4");
-    assert_eq!(model._get_text("A4"), *"#ERROR!");
-}

base/src/test/test_log10.rs

@@ -1,35 +0,0 @@
-#![allow(clippy::unwrap_used)]
-
-use crate::test::util::new_empty_model;
-
-#[test]
-fn arguments() {
-    let mut model = new_empty_model();
-    model._set("A1", "=LOG10(100)");
-    model._set("A2", "=LOG10()");
-    model._set("A3", "=LOG10(100, 10)");
-
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), *"2");
-    assert_eq!(model._get_text("A2"), *"#ERROR!");
-    assert_eq!(model._get_text("A3"), *"#ERROR!");
-}
-
-#[test]
-fn cell_and_function() {
-    let mut model = new_empty_model();
-    model._set("A1", "=LOG10");
-
-    model.evaluate();
-
-    // This is the cell LOG10
-    assert_eq!(model._get_text("A1"), *"0");
-
-    model._set("LOG10", "1000");
-    model._set("A2", "=LOG10(LOG10)");
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), *"1000");
-    assert_eq!(model._get_text("A2"), *"3");
-}

base/src/test/test_networkdays.rs

@@ -1,347 +0,0 @@
-#![allow(clippy::unwrap_used)]
-
-use crate::test::util::new_empty_model;
-
-// Test data: Jan 1-10, 2023 week
-const JAN_1_2023: i32 = 44927; // Sunday
-const JAN_2_2023: i32 = 44928; // Monday
-const JAN_6_2023: i32 = 44932; // Friday
-const JAN_9_2023: i32 = 44935; // Monday
-const JAN_10_2023: i32 = 44936; // Tuesday
-
-#[test]
-fn networkdays_calculates_weekdays_excluding_weekends() {
-    let mut model = new_empty_model();
-
-    model._set("A1", &format!("=NETWORKDAYS({JAN_1_2023},{JAN_10_2023})"));
-    model.evaluate();
-
-    assert_eq!(
-        model._get_text("A1"),
-        "7",
-        "Should count 7 weekdays in 10-day span"
-    );
-}
-
-#[test]
-fn networkdays_handles_reverse_date_order() {
-    let mut model = new_empty_model();
-
-    model._set("A1", &format!("=NETWORKDAYS({JAN_10_2023},{JAN_1_2023})"));
-    model.evaluate();
-
-    assert_eq!(
-        model._get_text("A1"),
-        "-7",
-        "Reversed dates should return negative count"
-    );
-}
-
-#[test]
-fn networkdays_excludes_holidays_from_weekdays() {
-    let mut model = new_empty_model();
-
-    model._set(
-        "A1",
-        &format!("=NETWORKDAYS({JAN_1_2023},{JAN_10_2023},{JAN_9_2023})"),
-    );
-    model.evaluate();
-
-    assert_eq!(
-        model._get_text("A1"),
-        "6",
-        "Should exclude Monday holiday from 7 weekdays"
-    );
-}
-
-#[test]
-fn networkdays_handles_same_start_end_date() {
-    let mut model = new_empty_model();
-
-    model._set("A1", &format!("=NETWORKDAYS({JAN_9_2023},{JAN_9_2023})"));
-    model.evaluate();
-
-    assert_eq!(
-        model._get_text("A1"),
-        "1",
-        "Same weekday date should count as 1 workday"
-    );
-}
-
-#[test]
-fn networkdays_accepts_holiday_ranges() {
-    let mut model = new_empty_model();
-
-    model._set("B1", &JAN_2_2023.to_string());
-    model._set("B2", &JAN_6_2023.to_string());
-    model._set(
-        "A1",
-        &format!("=NETWORKDAYS({JAN_1_2023},{JAN_10_2023},B1:B2)"),
-    );
-    model.evaluate();
-
-    assert_eq!(
-        model._get_text("A1"),
-        "5",
-        "Should exclude 2 holidays from 7 weekdays"
-    );
-}
-
-#[test]
-fn networkdays_intl_uses_standard_weekend_by_default() {
-    let mut model = new_empty_model();
-
-    model._set(
-        "A1",
-        &format!("=NETWORKDAYS.INTL({JAN_1_2023},{JAN_10_2023})"),
-    );
-    model.evaluate();
-
-    assert_eq!(
-        model._get_text("A1"),
-        "7",
-        "Default should be Saturday-Sunday weekend"
-    );
-}
-
-#[test]
-fn networkdays_intl_supports_numeric_weekend_patterns() {
-    let mut model = new_empty_model();
-
-    // Pattern 2 = Sunday-Monday weekend
-    model._set(
-        "A1",
-        &format!("=NETWORKDAYS.INTL({JAN_1_2023},{JAN_10_2023},2)"),
-    );
-    model.evaluate();
-
-    assert_eq!(
-        model._get_text("A1"),
-        "6",
-        "Sunday-Monday weekend should give 6 workdays"
-    );
-}
-
-#[test]
-fn networkdays_intl_supports_single_day_weekends() {
-    let mut model = new_empty_model();
-
-    // Pattern 11 = Sunday only weekend
-    model._set(
-        "A1",
-        &format!("=NETWORKDAYS.INTL({JAN_1_2023},{JAN_10_2023},11)"),
-    );
-    model.evaluate();
-
-    assert_eq!(
-        model._get_text("A1"),
-        "8",
-        "Sunday-only weekend should give 8 workdays"
-    );
-}
-
-#[test]
-fn networkdays_intl_supports_string_weekend_patterns() {
-    let mut model = new_empty_model();
-
-    // "0000110" = Friday-Saturday weekend
-    model._set(
-        "A1",
-        &format!("=NETWORKDAYS.INTL({JAN_1_2023},{JAN_10_2023},\"0000110\")"),
-    );
-    model.evaluate();
-
-    assert_eq!(
-        model._get_text("A1"),
-        "8",
-        "Friday-Saturday weekend should give 8 workdays"
-    );
-}
-
-#[test]
-fn networkdays_intl_no_weekends_counts_all_days() {
-    let mut model = new_empty_model();
-
-    model._set(
-        "A1",
-        &format!("=NETWORKDAYS.INTL({JAN_1_2023},{JAN_10_2023},\"0000000\")"),
-    );
-    model.evaluate();
-
-    assert_eq!(
-        model._get_text("A1"),
-        "10",
-        "No weekends should count all 10 days"
-    );
-}
-
-#[test]
-fn networkdays_intl_combines_custom_weekends_with_holidays() {
-    let mut model = new_empty_model();
-
-    model._set(
-        "A1",
-        &format!("=NETWORKDAYS.INTL({JAN_1_2023},{JAN_10_2023},\"0000110\",{JAN_9_2023})"),
-    );
-    model.evaluate();
-
-    assert_eq!(
-        model._get_text("A1"),
-        "7",
-        "Should exclude both weekend and holiday"
-    );
-}
-
-#[test]
-fn networkdays_validates_argument_count() {
-    let mut model = new_empty_model();
-
-    model._set("A1", "=NETWORKDAYS()");
-    model._set("A2", "=NETWORKDAYS(1,2,3,4)");
-    model._set("A3", "=NETWORKDAYS.INTL()");
-    model._set("A4", "=NETWORKDAYS.INTL(1,2,3,4,5)");
-
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), "#ERROR!");
-    assert_eq!(model._get_text("A2"), "#ERROR!");
-    assert_eq!(model._get_text("A3"), "#ERROR!");
-    assert_eq!(model._get_text("A4"), "#ERROR!");
-}
-
-#[test]
-fn networkdays_rejects_invalid_dates() {
-    let mut model = new_empty_model();
-
-    model._set("A1", "=NETWORKDAYS(-1,100)");
-    model._set("A2", "=NETWORKDAYS(1,3000000)");
-    model._set("A3", "=NETWORKDAYS(\"text\",100)");
-
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), "#NUM!");
-    assert_eq!(model._get_text("A2"), "#NUM!");
-    assert_eq!(model._get_text("A3"), "#VALUE!");
-}
-
-#[test]
-fn networkdays_intl_rejects_invalid_weekend_patterns() {
-    let mut model = new_empty_model();
-
-    model._set("A1", "=NETWORKDAYS.INTL(1,10,99)");
-    model._set("A2", "=NETWORKDAYS.INTL(1,10,\"111110\")");
-    model._set("A3", "=NETWORKDAYS.INTL(1,10,\"11111000\")");
-    model._set("A4", "=NETWORKDAYS.INTL(1,10,\"1111102\")");
-
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), "#NUM!");
-    assert_eq!(model._get_text("A2"), "#VALUE!");
-    assert_eq!(model._get_text("A3"), "#VALUE!");
-    assert_eq!(model._get_text("A4"), "#VALUE!");
-}
-
-#[test]
-fn networkdays_rejects_invalid_holidays() {
-    let mut model = new_empty_model();
-
-    model._set("B1", "invalid");
-    model._set(
-        "A1",
-        &format!("=NETWORKDAYS({JAN_1_2023},{JAN_10_2023},B1)"),
-    );
-    model._set(
-        "A2",
-        &format!("=NETWORKDAYS({JAN_1_2023},{JAN_10_2023},-1)"),
-    );
-
-    model.evaluate();
-
-    assert_eq!(
-        model._get_text("A1"),
-        "#VALUE!",
-        "Should reject non-numeric holidays"
-    );
-    assert_eq!(
-        model._get_text("A2"),
-        "#NUM!",
-        "Should reject out-of-range holidays"
-    );
-}
-
-#[test]
-fn networkdays_handles_weekend_only_periods() {
-    let mut model = new_empty_model();
-
-    let saturday = JAN_1_2023 - 1;
-    model._set("A1", &format!("=NETWORKDAYS({saturday},{JAN_1_2023})"));
-    model.evaluate();
-
-    assert_eq!(
-        model._get_text("A1"),
-        "0",
-        "Weekend-only period should count 0 workdays"
-    );
-}
-
-#[test]
-fn networkdays_ignores_holidays_outside_date_range() {
-    let mut model = new_empty_model();
-
-    let future_holiday = JAN_10_2023 + 100;
-    model._set(
-        "A1",
-        &format!("=NETWORKDAYS({JAN_1_2023},{JAN_10_2023},{future_holiday})"),
-    );
-    model.evaluate();
-
-    assert_eq!(
-        model._get_text("A1"),
-        "7",
-        "Out-of-range holidays should be ignored"
-    );
-}
-
-#[test]
-fn networkdays_handles_empty_holiday_ranges() {
-    let mut model = new_empty_model();
-
-    model._set(
-        "A1",
-        &format!("=NETWORKDAYS({JAN_1_2023},{JAN_10_2023},B1:B3)"),
-    );
-    model.evaluate();
-
-    assert_eq!(
-        model._get_text("A1"),
-        "7",
-        "Empty holiday range should be treated as no holidays"
-    );
-}
-
-#[test]
-fn networkdays_handles_minimum_valid_dates() {
-    let mut model = new_empty_model();
-
-    model._set("A1", "=NETWORKDAYS(1,7)");
-    model.evaluate();
-
-    assert_eq!(
-        model._get_text("A1"),
-        "5",
-        "Should handle earliest Excel dates correctly"
-    );
-}
-
-#[test]
-fn networkdays_handles_large_date_ranges_efficiently() {
-    let mut model = new_empty_model();
-
-    model._set("A1", "=NETWORKDAYS(1,365)");
-    model.evaluate();
-
-    assert!(
-        !model._get_text("A1").starts_with('#'),
-        "Large ranges should not error"
-    );
-}

base/src/test/test_styles.rs

@@ -62,17 +62,3 @@ fn test_create_named_style() {
     let style = model.get_style_for_cell(0, 1, 1).unwrap();
     assert!(style.font.b);
 }
-
-#[test]
-fn empty_models_have_two_fills() {
-    let model = new_empty_model();
-    assert_eq!(model.workbook.styles.fills.len(), 2);
-    assert_eq!(
-        model.workbook.styles.fills[0].pattern_type,
-        "none".to_string()
-    );
-    assert_eq!(
-        model.workbook.styles.fills[1].pattern_type,
-        "gray125".to_string()
-    );
-}

base/src/test/test_weekday_return_types.rs

@@ -1,26 +0,0 @@
-use crate::test::util::new_empty_model;
-
-#[test]
-fn test_weekday_return_types_11_to_17() {
-    let mut model = new_empty_model();
-
-    // Test date: 44561 corresponds to a Friday (2021-12-31). We verify the
-    // numeric result for each custom week start defined by return_type 11-17.
-    model._set("A1", "=WEEKDAY(44561,11)"); // Monday start
-    model._set("A2", "=WEEKDAY(44561,12)"); // Tuesday start
-    model._set("A3", "=WEEKDAY(44561,13)"); // Wednesday start
-    model._set("A4", "=WEEKDAY(44561,14)"); // Thursday start
-    model._set("A5", "=WEEKDAY(44561,15)"); // Friday start
-    model._set("A6", "=WEEKDAY(44561,16)"); // Saturday start
-    model._set("A7", "=WEEKDAY(44561,17)"); // Sunday start
-
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), *"5"); // Mon=1 .. Sun=7 ⇒ Fri=5
-    assert_eq!(model._get_text("A2"), *"4"); // Tue start ⇒ Fri=4
-    assert_eq!(model._get_text("A3"), *"3"); // Wed start ⇒ Fri=3
-    assert_eq!(model._get_text("A4"), *"2"); // Thu start ⇒ Fri=2
-    assert_eq!(model._get_text("A5"), *"1"); // Fri start ⇒ Fri=1
-    assert_eq!(model._get_text("A6"), *"7"); // Sat start ⇒ Fri=7
-    assert_eq!(model._get_text("A7"), *"6"); // Sun start ⇒ Fri=6
-}

base/src/test/test_weeknum_return_types.rs

@@ -1,31 +0,0 @@
-use crate::test::util::new_empty_model;
-
-#[test]
-fn test_weeknum_return_types_11_to_17_and_21() {
-    let mut model = new_empty_model();
-
-    // Date 44561 -> 2021-12-31 (Friday). Previously verified as week 53 (Sunday/Monday start).
-    // We verify that custom week-start codes 11-17 all map to week 53 and ISO variant (21) maps to 52.
-    let formulas = [
-        ("A1", "=WEEKNUM(44561,11)"),
-        ("A2", "=WEEKNUM(44561,12)"),
-        ("A3", "=WEEKNUM(44561,13)"),
-        ("A4", "=WEEKNUM(44561,14)"),
-        ("A5", "=WEEKNUM(44561,15)"),
-        ("A6", "=WEEKNUM(44561,16)"),
-        ("A7", "=WEEKNUM(44561,17)"),
-        ("A8", "=WEEKNUM(44561,21)"), // ISO week numbering
-    ];
-    for (cell, formula) in formulas {
-        model._set(cell, formula);
-    }
-
-    model.evaluate();
-
-    // All 11-17 variations should yield 53
-    for cell in ["A1", "A2", "A3", "A4", "A5", "A6", "A7"] {
-        assert_eq!(model._get_text(cell), *"53", "{cell} should be 53");
-    }
-    // ISO week (return_type 21)
-    assert_eq!(model._get_text("A8"), *"52");
-}

base/src/test/test_yearfrac_basis.rs

@@ -1,60 +0,0 @@
-#![allow(clippy::panic)]
-use crate::{cell::CellValue, test::util::new_empty_model};
-
-#[test]
-fn test_yearfrac_basis_2_actual_360() {
-    let mut model = new_empty_model();
-
-    // Non-leap span of exactly 360 days should result in 1.0
-    model._set("A1", "=YEARFRAC(44561,44921,2)");
-
-    // Leap-year span of 366 days: Jan 1 2020 → Jan 1 2021
-    model._set("A2", "=YEARFRAC(43831,44197,2)");
-
-    // Reverse order should yield negative value
-    model._set("A3", "=YEARFRAC(44921,44561,2)");
-
-    model.evaluate();
-
-    // 360/360
-    assert_eq!(model._get_text("A1"), *"1");
-
-    // 366/360 ≈ 1.0166666667 (tolerance 1e-10)
-    if let Ok(CellValue::Number(v)) = model.get_cell_value_by_ref("Sheet1!A2") {
-        assert!((v - 1.016_666_666_7).abs() < 1e-10);
-    } else {
-        panic!("Expected numeric value in A2");
-    }
-
-    // Negative symmetric of A1
-    assert_eq!(model._get_text("A3"), *"-1");
-}
-
-#[test]
-fn test_yearfrac_basis_3_actual_365() {
-    let mut model = new_empty_model();
-
-    // Non-leap span of exactly 365 days should result in 1.0
-    model._set("B1", "=YEARFRAC(44561,44926,3)");
-
-    // Leap-year span of 366 days
-    model._set("B2", "=YEARFRAC(43831,44197,3)");
-
-    // Same date should be 0
-    model._set("B3", "=YEARFRAC(44561,44561,3)");
-
-    model.evaluate();
-
-    // 365/365
-    assert_eq!(model._get_text("B1"), *"1");
-
-    // 366/365 ≈ 1.002739726 (tolerance 1e-10)
-    if let Ok(CellValue::Number(v)) = model.get_cell_value_by_ref("Sheet1!B2") {
-        assert!((v - 1.002_739_726).abs() < 1e-10);
-    } else {
-        panic!("Expected numeric value in B2");
-    }
-
-    // Same date
-    assert_eq!(model._get_text("B3"), *"0");
-}

base/src/test/user_model/mod.rs

@@ -1,7 +1,6 @@
 mod test_add_delete_sheets;
 mod test_autofill_columns;
 mod test_autofill_rows;
-mod test_batch_row_column_diff;
 mod test_border;
 mod test_clear_cells;
 mod test_column_style;
@@ -12,8 +11,6 @@ mod test_evaluation;
 mod test_general;
 mod test_grid_lines;
 mod test_keyboard_navigation;
-mod test_last_empty_cell;
-mod test_multi_row_column;
 mod test_on_area_selection;
 mod test_on_expand_selected_range;
 mod test_on_paste_styles;

base/src/test/user_model/test_batch_row_column_diff.rs

@@ -1,675 +0,0 @@
-#![allow(clippy::unwrap_used)]
-#![allow(clippy::panic)]
-
-use bitcode::decode;
-
-use crate::{
-    constants::{LAST_COLUMN, LAST_ROW},
-    test::util::new_empty_model,
-    user_model::history::{Diff, QueueDiffs},
-    UserModel,
-};
-
-fn last_diff_list(model: &mut UserModel) -> Vec<Diff> {
-    let bytes = model.flush_send_queue();
-    let queue: Vec<QueueDiffs> = decode(&bytes).unwrap();
-    // Get the last operation's diff list
-    queue.last().unwrap().list.clone()
-}
-
-#[test]
-fn diff_invariant_insert_rows() {
-    let base = new_empty_model();
-    let mut model = UserModel::from_model(base);
-
-    assert!(model.insert_rows(0, 5, 3).is_ok());
-
-    let list = last_diff_list(&mut model);
-    assert_eq!(list.len(), 1);
-    assert!(matches!(
-        &list[0],
-        Diff::InsertRows {
-            sheet: 0,
-            row: 5,
-            count: 3
-        }
-    ));
-}
-
-#[test]
-fn diff_invariant_insert_columns() {
-    let base = new_empty_model();
-    let mut model = UserModel::from_model(base);
-
-    assert!(model.insert_columns(0, 2, 4).is_ok());
-    let list = last_diff_list(&mut model);
-    assert_eq!(list.len(), 1);
-    assert!(matches!(
-        &list[0],
-        Diff::InsertColumns {
-            sheet: 0,
-            column: 2,
-            count: 4
-        }
-    ));
-}
-
-#[test]
-fn undo_redo_after_batch_delete() {
-    let base = new_empty_model();
-    let mut model = UserModel::from_model(base);
-
-    // Place values that will shift.
-    model.set_user_input(0, 20, 1, "A").unwrap();
-    model.set_user_input(0, 1, 20, "B").unwrap();
-
-    // Fill some of the rows we are about to delete for testing
-    for r in 10..15 {
-        model.set_user_input(0, r, 1, "tmp").unwrap();
-    }
-
-    // Delete rows 10..14 and columns 5..8
-    assert!(model.delete_rows(0, 10, 5).is_ok());
-    assert!(model.delete_columns(0, 5, 4).is_ok());
-
-    // Verify shift
-    assert_eq!(model.get_formatted_cell_value(0, 15, 1).unwrap(), "A");
-    assert_eq!(model.get_formatted_cell_value(0, 1, 16).unwrap(), "B");
-
-    // Undo
-    model.undo().unwrap(); // columns
-    model.undo().unwrap(); // rows
-    assert_eq!(model.get_formatted_cell_value(0, 20, 1).unwrap(), "A");
-    assert_eq!(model.get_formatted_cell_value(0, 1, 20).unwrap(), "B");
-
-    // Redo
-    model.redo().unwrap(); // rows
-    model.redo().unwrap(); // columns
-    assert_eq!(model.get_formatted_cell_value(0, 15, 1).unwrap(), "A");
-    assert_eq!(model.get_formatted_cell_value(0, 1, 16).unwrap(), "B");
-}
-
-#[test]
-fn diff_order_delete_rows() {
-    // Verifies that delete diffs are generated with all data preserved
-    let base = new_empty_model();
-    let mut model = UserModel::from_model(base);
-
-    // Populate rows to delete
-    for r in 5..10 {
-        model.set_user_input(0, r, 1, &r.to_string()).unwrap();
-    }
-
-    assert!(model.delete_rows(0, 5, 5).is_ok());
-
-    let list = last_diff_list(&mut model);
-    assert_eq!(list.len(), 1);
-
-    // Should have one bulk diff with all the row data
-    match &list[0] {
-        Diff::DeleteRows {
-            sheet,
-            row,
-            count,
-            old_data,
-        } => {
-            assert_eq!(*sheet, 0);
-            assert_eq!(*row, 5);
-            assert_eq!(*count, 5);
-            assert_eq!(old_data.len(), 5);
-            // Verify the data was collected for each row
-            for (i, row_data) in old_data.iter().enumerate() {
-                let _expected_value = (5 + i).to_string();
-                assert!(row_data.data.contains_key(&1));
-            }
-        }
-        _ => panic!("Unexpected diff variant"),
-    }
-}
-
-#[test]
-fn batch_operations_with_formulas() {
-    // Verifies formulas update correctly after batch ops
-    let base = new_empty_model();
-    let mut model = UserModel::from_model(base);
-
-    model.set_user_input(0, 1, 1, "10").unwrap();
-    model.set_user_input(0, 5, 1, "=A1*2").unwrap(); // Will become A3 after insert
-
-    assert!(model.insert_rows(0, 2, 2).is_ok());
-
-    // Formula should now reference A1 (unchanged) but be in row 7
-    assert_eq!(model.get_formatted_cell_value(0, 7, 1).unwrap(), "20");
-    assert_eq!(model.get_cell_content(0, 7, 1).unwrap(), "=A1*2");
-
-    // Undo and verify formula is back at original position
-    model.undo().unwrap();
-    assert_eq!(model.get_formatted_cell_value(0, 5, 1).unwrap(), "20");
-}
-
-#[test]
-fn edge_case_single_operation() {
-    // Single row/column operations should still work correctly
-    let base = new_empty_model();
-    let mut model = UserModel::from_model(base);
-
-    assert!(model.insert_rows(0, 1, 1).is_ok());
-    let list = last_diff_list(&mut model);
-    assert_eq!(list.len(), 1);
-
-    assert!(model.insert_columns(0, 1, 1).is_ok());
-    let list = last_diff_list(&mut model);
-    assert_eq!(list.len(), 1);
-}
-
-#[test]
-fn delete_empty_rows() {
-    // Delete multiple empty rows and verify behavior
-    let base = new_empty_model();
-    let mut model = UserModel::from_model(base);
-
-    // Set data in rows 1 and 10, leaving rows 5-8 empty
-    model.set_user_input(0, 1, 1, "Before").unwrap();
-    model.set_user_input(0, 10, 1, "After").unwrap();
-
-    // Delete empty rows 5-8
-    assert!(model.delete_rows(0, 5, 4).is_ok());
-
-    // Verify shift
-    assert_eq!(model.get_formatted_cell_value(0, 1, 1).unwrap(), "Before");
-    assert_eq!(model.get_formatted_cell_value(0, 6, 1).unwrap(), "After");
-
-    // Verify diffs now use bulk operation
-    let list = last_diff_list(&mut model);
-    assert_eq!(list.len(), 1);
-    match &list[0] {
-        Diff::DeleteRows {
-            sheet,
-            row,
-            count,
-            old_data,
-        } => {
-            assert_eq!(*sheet, 0);
-            assert_eq!(*row, 5);
-            assert_eq!(*count, 4);
-            assert_eq!(old_data.len(), 4);
-            // All rows should be empty
-            for row_data in old_data {
-                assert!(row_data.data.is_empty());
-            }
-        }
-        _ => panic!("Unexpected diff variant"),
-    }
-
-    // Undo/redo
-    model.undo().unwrap();
-    assert_eq!(model.get_formatted_cell_value(0, 10, 1).unwrap(), "After");
-    model.redo().unwrap();
-    assert_eq!(model.get_formatted_cell_value(0, 6, 1).unwrap(), "After");
-}
-
-#[test]
-fn delete_mixed_empty_and_filled_rows() {
-    let base = new_empty_model();
-    let mut model = UserModel::from_model(base);
-
-    // Alternating filled and empty rows
-    model.set_user_input(0, 5, 1, "Row5").unwrap();
-    model.set_user_input(0, 7, 1, "Row7").unwrap();
-    model.set_user_input(0, 9, 1, "Row9").unwrap();
-    model.set_user_input(0, 10, 1, "After").unwrap();
-
-    assert!(model.delete_rows(0, 5, 5).is_ok());
-    assert_eq!(model.get_formatted_cell_value(0, 5, 1).unwrap(), "After");
-
-    // Verify mix of empty and filled row diffs
-    let list = last_diff_list(&mut model);
-    assert_eq!(list.len(), 1);
-    match &list[0] {
-        Diff::DeleteRows {
-            sheet,
-            row,
-            count,
-            old_data,
-        } => {
-            assert_eq!(*sheet, 0);
-            assert_eq!(*row, 5);
-            assert_eq!(*count, 5);
-            assert_eq!(old_data.len(), 5);
-
-            // Count filled rows (should be 3: rows 5, 7, 9)
-            let filled_count = old_data
-                .iter()
-                .filter(|row_data| !row_data.data.is_empty())
-                .count();
-            assert_eq!(filled_count, 3);
-        }
-        _ => panic!("Unexpected diff variant"),
-    }
-
-    // Undo
-    model.undo().unwrap();
-    assert_eq!(model.get_formatted_cell_value(0, 5, 1).unwrap(), "Row5");
-    assert_eq!(model.get_formatted_cell_value(0, 7, 1).unwrap(), "Row7");
-    assert_eq!(model.get_formatted_cell_value(0, 9, 1).unwrap(), "Row9");
-    assert_eq!(model.get_formatted_cell_value(0, 10, 1).unwrap(), "After");
-}
-
-#[test]
-fn bulk_insert_rows_undo_redo() {
-    let base = new_empty_model();
-    let mut model = UserModel::from_model(base);
-
-    // Set up initial data
-    model.set_user_input(0, 1, 1, "A1").unwrap();
-    model.set_user_input(0, 2, 1, "A2").unwrap();
-    model.set_user_input(0, 5, 1, "A5").unwrap();
-
-    // Insert 3 rows at position 3
-    assert!(model.insert_rows(0, 3, 3).is_ok());
-
-    // Verify data has shifted
-    assert_eq!(model.get_formatted_cell_value(0, 1, 1).unwrap(), "A1");
-    assert_eq!(model.get_formatted_cell_value(0, 2, 1).unwrap(), "A2");
-    assert_eq!(model.get_formatted_cell_value(0, 8, 1).unwrap(), "A5"); // A5 moved to A8
-
-    // Check diff structure
-    let list = last_diff_list(&mut model);
-    assert_eq!(list.len(), 1);
-    assert!(matches!(
-        &list[0],
-        Diff::InsertRows {
-            sheet: 0,
-            row: 3,
-            count: 3
-        }
-    ));
-
-    // Undo
-    model.undo().unwrap();
-    assert_eq!(model.get_formatted_cell_value(0, 5, 1).unwrap(), "A5"); // Back to original position
-
-    // Redo
-    model.redo().unwrap();
-    assert_eq!(model.get_formatted_cell_value(0, 8, 1).unwrap(), "A5"); // Shifted again
-}
-
-#[test]
-fn bulk_insert_columns_undo_redo() {
-    let base = new_empty_model();
-    let mut model = UserModel::from_model(base);
-
-    // Set up initial data
-    model.set_user_input(0, 1, 1, "A1").unwrap();
-    model.set_user_input(0, 1, 2, "B1").unwrap();
-    model.set_user_input(0, 1, 5, "E1").unwrap();
-
-    // Insert 3 columns at position 3
-    assert!(model.insert_columns(0, 3, 3).is_ok());
-
-    // Verify data has shifted
-    assert_eq!(model.get_formatted_cell_value(0, 1, 1).unwrap(), "A1");
-    assert_eq!(model.get_formatted_cell_value(0, 1, 2).unwrap(), "B1");
-    assert_eq!(model.get_formatted_cell_value(0, 1, 8).unwrap(), "E1"); // E1 moved to H1
-
-    // Check diff structure
-    let list = last_diff_list(&mut model);
-    assert_eq!(list.len(), 1);
-    assert!(matches!(
-        &list[0],
-        Diff::InsertColumns {
-            sheet: 0,
-            column: 3,
-            count: 3
-        }
-    ));
-
-    // Undo
-    model.undo().unwrap();
-    assert_eq!(model.get_formatted_cell_value(0, 1, 5).unwrap(), "E1"); // Back to original position
-
-    // Redo
-    model.redo().unwrap();
-    assert_eq!(model.get_formatted_cell_value(0, 1, 8).unwrap(), "E1"); // Shifted again
-}
-
-#[test]
-fn bulk_delete_rows_round_trip() {
-    let base = new_empty_model();
-    let mut model = UserModel::from_model(base);
-
-    // Set up data with styles
-    model.set_user_input(0, 3, 1, "Row3").unwrap();
-    model.set_user_input(0, 4, 1, "Row4").unwrap();
-    model.set_user_input(0, 5, 1, "Row5").unwrap();
-    model.set_user_input(0, 6, 1, "Row6").unwrap();
-    model.set_user_input(0, 7, 1, "After").unwrap();
-
-    // Set some row heights to verify they're preserved
-    model.set_rows_height(0, 4, 4, 30.0).unwrap();
-    model.set_rows_height(0, 5, 5, 40.0).unwrap();
-
-    // Delete rows 3-6
-    assert!(model.delete_rows(0, 3, 4).is_ok());
-
-    // Verify deletion
-    assert_eq!(model.get_formatted_cell_value(0, 3, 1).unwrap(), "After");
-
-    // Check diff structure
-    let list = last_diff_list(&mut model);
-    assert_eq!(list.len(), 1);
-    match &list[0] {
-        Diff::DeleteRows {
-            sheet,
-            row,
-            count,
-            old_data,
-        } => {
-            assert_eq!(*sheet, 0);
-            assert_eq!(*row, 3);
-            assert_eq!(*count, 4);
-            assert_eq!(old_data.len(), 4);
-            // Verify data was preserved
-            assert!(old_data[0].data.contains_key(&1)); // Row3
-            assert!(old_data[1].data.contains_key(&1)); // Row4
-            assert!(old_data[2].data.contains_key(&1)); // Row5
-            assert!(old_data[3].data.contains_key(&1)); // Row6
-        }
-        _ => panic!("Expected DeleteRows diff"),
-    }
-
-    // Undo - should restore all data and row heights
-    model.undo().unwrap();
-    assert_eq!(model.get_formatted_cell_value(0, 3, 1).unwrap(), "Row3");
-    assert_eq!(model.get_formatted_cell_value(0, 4, 1).unwrap(), "Row4");
-    assert_eq!(model.get_formatted_cell_value(0, 5, 1).unwrap(), "Row5");
-    assert_eq!(model.get_formatted_cell_value(0, 6, 1).unwrap(), "Row6");
-    assert_eq!(model.get_formatted_cell_value(0, 7, 1).unwrap(), "After");
-    assert_eq!(model.get_row_height(0, 4).unwrap(), 30.0);
-    assert_eq!(model.get_row_height(0, 5).unwrap(), 40.0);
-
-    // Redo - should delete again
-    model.redo().unwrap();
-    assert_eq!(model.get_formatted_cell_value(0, 3, 1).unwrap(), "After");
-
-    // Final undo to verify round-trip
-    model.undo().unwrap();
-    assert_eq!(model.get_formatted_cell_value(0, 3, 1).unwrap(), "Row3");
-    assert_eq!(model.get_formatted_cell_value(0, 4, 1).unwrap(), "Row4");
-    assert_eq!(model.get_formatted_cell_value(0, 5, 1).unwrap(), "Row5");
-    assert_eq!(model.get_formatted_cell_value(0, 6, 1).unwrap(), "Row6");
-}
-
-#[test]
-fn bulk_delete_columns_round_trip() {
-    let base = new_empty_model();
-    let mut model = UserModel::from_model(base);
-
-    // Set up data with styles
-    model.set_user_input(0, 1, 3, "C1").unwrap();
-    model.set_user_input(0, 1, 4, "D1").unwrap();
-    model.set_user_input(0, 1, 5, "E1").unwrap();
-    model.set_user_input(0, 1, 6, "F1").unwrap();
-    model.set_user_input(0, 1, 7, "After").unwrap();
-
-    // Set some column widths to verify they're preserved
-    model.set_columns_width(0, 4, 4, 100.0).unwrap();
-    model.set_columns_width(0, 5, 5, 120.0).unwrap();
-
-    // Delete columns 3-6
-    assert!(model.delete_columns(0, 3, 4).is_ok());
-
-    // Verify deletion
-    assert_eq!(model.get_formatted_cell_value(0, 1, 3).unwrap(), "After");
-
-    // Check diff structure
-    let list = last_diff_list(&mut model);
-    assert_eq!(list.len(), 1);
-    match &list[0] {
-        Diff::DeleteColumns {
-            sheet,
-            column,
-            count,
-            old_data,
-        } => {
-            assert_eq!(*sheet, 0);
-            assert_eq!(*column, 3);
-            assert_eq!(*count, 4);
-            assert_eq!(old_data.len(), 4);
-            // Verify data was preserved
-            assert!(old_data[0].data.contains_key(&1)); // C1
-            assert!(old_data[1].data.contains_key(&1)); // D1
-            assert!(old_data[2].data.contains_key(&1)); // E1
-            assert!(old_data[3].data.contains_key(&1)); // F1
-        }
-        _ => panic!("Expected DeleteColumns diff"),
-    }
-
-    // Undo - should restore all data and column widths
-    model.undo().unwrap();
-    assert_eq!(model.get_formatted_cell_value(0, 1, 3).unwrap(), "C1");
-    assert_eq!(model.get_formatted_cell_value(0, 1, 4).unwrap(), "D1");
-    assert_eq!(model.get_formatted_cell_value(0, 1, 5).unwrap(), "E1");
-    assert_eq!(model.get_formatted_cell_value(0, 1, 6).unwrap(), "F1");
-    assert_eq!(model.get_formatted_cell_value(0, 1, 7).unwrap(), "After");
-    assert_eq!(model.get_column_width(0, 4).unwrap(), 100.0);
-    assert_eq!(model.get_column_width(0, 5).unwrap(), 120.0);
-
-    // Redo - should delete again
-    model.redo().unwrap();
-    assert_eq!(model.get_formatted_cell_value(0, 1, 3).unwrap(), "After");
-
-    // Final undo to verify round-trip
-    model.undo().unwrap();
-    assert_eq!(model.get_formatted_cell_value(0, 1, 3).unwrap(), "C1");
-    assert_eq!(model.get_formatted_cell_value(0, 1, 4).unwrap(), "D1");
-    assert_eq!(model.get_formatted_cell_value(0, 1, 5).unwrap(), "E1");
-    assert_eq!(model.get_formatted_cell_value(0, 1, 6).unwrap(), "F1");
-}
-
-#[test]
-fn complex_bulk_operations_sequence() {
-    // Test a complex sequence of bulk operations
-    let base = new_empty_model();
-    let mut model = UserModel::from_model(base);
-
-    // Initial setup
-    model.set_user_input(0, 1, 1, "A1").unwrap();
-    model.set_user_input(0, 2, 2, "B2").unwrap();
-    model.set_user_input(0, 3, 3, "C3").unwrap();
-
-    // Operation 1: Insert 2 rows at position 2
-    model.insert_rows(0, 2, 2).unwrap();
-    assert_eq!(model.get_formatted_cell_value(0, 1, 1).unwrap(), "A1");
-    assert_eq!(model.get_formatted_cell_value(0, 4, 2).unwrap(), "B2"); // B2 moved down
-    assert_eq!(model.get_formatted_cell_value(0, 5, 3).unwrap(), "C3"); // C3 moved down
-
-    // Operation 2: Insert 2 columns at position 2
-    model.insert_columns(0, 2, 2).unwrap();
-    assert_eq!(model.get_formatted_cell_value(0, 1, 1).unwrap(), "A1");
-    assert_eq!(model.get_formatted_cell_value(0, 4, 4).unwrap(), "B2"); // B2 moved right
-    assert_eq!(model.get_formatted_cell_value(0, 5, 5).unwrap(), "C3"); // C3 moved right
-
-    // Operation 3: Delete the inserted rows
-    model.delete_rows(0, 2, 2).unwrap();
-    assert_eq!(model.get_formatted_cell_value(0, 2, 4).unwrap(), "B2");
-    assert_eq!(model.get_formatted_cell_value(0, 3, 5).unwrap(), "C3");
-
-    // Undo all operations
-    model.undo().unwrap(); // Undo delete rows
-    assert_eq!(model.get_formatted_cell_value(0, 4, 4).unwrap(), "B2");
-    assert_eq!(model.get_formatted_cell_value(0, 5, 5).unwrap(), "C3");
-
-    model.undo().unwrap(); // Undo insert columns
-    assert_eq!(model.get_formatted_cell_value(0, 4, 2).unwrap(), "B2");
-    assert_eq!(model.get_formatted_cell_value(0, 5, 3).unwrap(), "C3");
-
-    model.undo().unwrap(); // Undo insert rows
-    assert_eq!(model.get_formatted_cell_value(0, 2, 2).unwrap(), "B2");
-    assert_eq!(model.get_formatted_cell_value(0, 3, 3).unwrap(), "C3");
-
-    // Redo all operations
-    model.redo().unwrap(); // Redo insert rows
-    model.redo().unwrap(); // Redo insert columns
-    model.redo().unwrap(); // Redo delete rows
-    assert_eq!(model.get_formatted_cell_value(0, 2, 4).unwrap(), "B2");
-    assert_eq!(model.get_formatted_cell_value(0, 3, 5).unwrap(), "C3");
-}
-
-#[test]
-fn bulk_operations_with_formulas_update() {
-    // Test that formulas update correctly with bulk operations
-    let base = new_empty_model();
-    let mut model = UserModel::from_model(base);
-
-    // Set up data and formulas
-    model.set_user_input(0, 1, 1, "10").unwrap();
-    model.set_user_input(0, 5, 1, "20").unwrap();
-    model.set_user_input(0, 10, 1, "=A1+A5").unwrap(); // Formula referencing A1 and A5
-
-    // Insert 3 rows at position 3
-    model.insert_rows(0, 3, 3).unwrap();
-
-    // Formula should update to reference the shifted cells
-    assert_eq!(model.get_formatted_cell_value(0, 13, 1).unwrap(), "30"); // Formula moved down
-    assert_eq!(model.get_cell_content(0, 13, 1).unwrap(), "=A1+A8"); // A5 became A8
-
-    // Undo
-    model.undo().unwrap();
-    assert_eq!(model.get_formatted_cell_value(0, 10, 1).unwrap(), "30");
-    assert_eq!(model.get_cell_content(0, 10, 1).unwrap(), "=A1+A5");
-
-    // Now test column insertion
-    model.set_user_input(0, 1, 5, "20").unwrap(); // Add value in E1
-    model.set_user_input(0, 1, 10, "=A1+E1").unwrap();
-    model.insert_columns(0, 3, 2).unwrap();
-
-    assert_eq!(model.get_formatted_cell_value(0, 1, 12).unwrap(), "30"); // Formula moved right
-    assert_eq!(model.get_cell_content(0, 1, 12).unwrap(), "=A1+G1"); // E1 became G1
-}
-
-#[test]
-fn bulk_delete_with_styles() {
-    // Test that cell and row/column styles are preserved
-    let base = new_empty_model();
-    let mut model = UserModel::from_model(base);
-
-    // Set up data with various styles
-    for r in 5..10 {
-        model.set_user_input(0, r, 1, &format!("Row{r}")).unwrap();
-        model.set_rows_height(0, r, r, (r * 10) as f64).unwrap();
-    }
-
-    // Delete and verify style preservation
-    model.delete_rows(0, 5, 5).unwrap();
-
-    // Undo should restore all styles
-    model.undo().unwrap();
-    for r in 5..10 {
-        assert_eq!(
-            model.get_formatted_cell_value(0, r, 1).unwrap(),
-            format!("Row{r}")
-        );
-        assert_eq!(model.get_row_height(0, r).unwrap(), (r * 10) as f64);
-    }
-}
-
-#[test]
-fn bulk_operations_large_count() {
-    // Test operations with large counts
-    let base = new_empty_model();
-    let mut model = UserModel::from_model(base);
-
-    // Insert a large number of rows
-    model.set_user_input(0, 1, 1, "Before").unwrap();
-    model.set_user_input(0, 100, 1, "After").unwrap();
-
-    assert!(model.insert_rows(0, 50, 100).is_ok());
-
-    // Verify shift
-    assert_eq!(model.get_formatted_cell_value(0, 1, 1).unwrap(), "Before");
-    assert_eq!(model.get_formatted_cell_value(0, 200, 1).unwrap(), "After"); // Moved by 100
-
-    // Check diff
-    let list = last_diff_list(&mut model);
-    assert_eq!(list.len(), 1);
-    assert!(matches!(
-        &list[0],
-        Diff::InsertRows {
-            sheet: 0,
-            row: 50,
-            count: 100
-        }
-    ));
-
-    // Undo and redo
-    model.undo().unwrap();
-    assert_eq!(model.get_formatted_cell_value(0, 100, 1).unwrap(), "After");
-
-    model.redo().unwrap();
-    assert_eq!(model.get_formatted_cell_value(0, 200, 1).unwrap(), "After");
-}
-
-#[test]
-fn bulk_operations_error_cases() {
-    // Test error conditions
-    let base = new_empty_model();
-    let mut model = UserModel::from_model(base);
-
-    // Negative count should fail
-    assert!(model.insert_rows(0, 1, -5).is_err());
-    assert!(model.insert_columns(0, 1, -5).is_err());
-    assert!(model.delete_rows(0, 1, -5).is_err());
-    assert!(model.delete_columns(0, 1, -5).is_err());
-
-    // Zero count should fail
-    assert!(model.insert_rows(0, 1, 0).is_err());
-    assert!(model.insert_columns(0, 1, 0).is_err());
-    assert!(model.delete_rows(0, 1, 0).is_err());
-    assert!(model.delete_columns(0, 1, 0).is_err());
-
-    // Out of bounds operations should fail
-    assert!(model.delete_rows(0, LAST_ROW - 5, 10).is_err());
-    assert!(model.delete_columns(0, LAST_COLUMN - 5, 10).is_err());
-}
-
-#[test]
-fn bulk_diff_serialization() {
-    // Test that bulk diffs can be serialized/deserialized correctly
-    let base = new_empty_model();
-    let mut model = UserModel::from_model(base);
-
-    // Create some data
-    model.set_user_input(0, 1, 1, "Test").unwrap();
-    model.insert_rows(0, 2, 3).unwrap();
-
-    // Flush and get the serialized diffs
-    let bytes = model.flush_send_queue();
-
-    // Create a new model and apply the diffs
-    let base2 = new_empty_model();
-    let mut model2 = UserModel::from_model(base2);
-
-    assert!(model2.apply_external_diffs(&bytes).is_ok());
-
-    // Verify the state matches
-    assert_eq!(model2.get_formatted_cell_value(0, 1, 1).unwrap(), "Test");
-}
-
-#[test]
-fn boundary_validation() {
-    let base = new_empty_model();
-    let mut model = UserModel::from_model(base);
-
-    // Test deleting rows beyond valid range
-    assert!(model.delete_rows(0, LAST_ROW, 2).is_err());
-    assert!(model.delete_rows(0, LAST_ROW + 1, 1).is_err());
-
-    // Test deleting columns beyond valid range
-    assert!(model.delete_columns(0, LAST_COLUMN, 2).is_err());
-    assert!(model.delete_columns(0, LAST_COLUMN + 1, 1).is_err());
-
-    // Test valid boundary deletions (should work with our empty row fix)
-    assert!(model.delete_rows(0, LAST_ROW, 1).is_ok());
-    assert!(model.delete_columns(0, LAST_COLUMN, 1).is_ok());
-}

base/src/test/user_model/test_border.rs

@@ -50,7 +50,10 @@ fn check_borders(model: &UserModel) {
                         assert_eq!(
                             Some(top_border),
                             top_cell_style.border.bottom,
-                            "(Top). Sheet: {sheet}, row: {row}, column: {column}"
+                            "(Top). Sheet: {}, row: {}, column: {}",
+                            sheet,
+                            row,
+                            column
                         );
                     }
                 }
@@ -62,7 +65,10 @@ fn check_borders(model: &UserModel) {
                         assert_eq!(
                             Some(right_border),
                             right_cell_style.border.left,
-                            "(Right). Sheet: {sheet}, row: {row}, column: {column}"
+                            "(Right). Sheet: {}, row: {}, column: {}",
+                            sheet,
+                            row,
+                            column
                         );
                     }
                 }
@@ -74,7 +80,10 @@ fn check_borders(model: &UserModel) {
                         assert_eq!(
                             Some(bottom_border),
                             bottom_cell_style.border.top,
-                            "(Bottom). Sheet: {sheet}, row: {row}, column: {column}"
+                            "(Bottom). Sheet: {}, row: {}, column: {}",
+                            sheet,
+                            row,
+                            column
                         );
                     }
                 }
@@ -85,7 +94,10 @@ fn check_borders(model: &UserModel) {
                         assert_eq!(
                             Some(left_border),
                             left_cell_style.border.right,
-                            "(Left). Sheet: {sheet}, row: {row}, column: {column}"
+                            "(Left). Sheet: {}, row: {}, column: {}",
+                            sheet,
+                            row,
+                            column
                         );
                     }
                 }

base/src/test/user_model/test_clear_cells.rs

@@ -89,67 +89,3 @@ fn clear_all_empty_cell() {
     model.undo().unwrap();
     assert_eq!(model.get_formatted_cell_value(0, 1, 1), Ok("".to_string()));
 }
-
-#[test]
-fn issue_454() {
-    let mut model = UserModel::new_empty("model", "en", "UTC").unwrap();
-    model
-        .set_user_input(
-            0,
-            1,
-            1,
-            "Le presbytère n'a rien perdu de son charme, ni le jardin de son éclat.",
-        )
-        .unwrap();
-    model.set_user_input(0, 1, 2, "=ISTEXT(A1)").unwrap();
-    assert_eq!(
-        model.get_formatted_cell_value(0, 1, 2),
-        Ok("TRUE".to_string())
-    );
-    model
-        .range_clear_contents(&Area {
-            sheet: 0,
-            row: 1,
-            column: 1,
-            width: 1,
-            height: 1,
-        })
-        .unwrap();
-    assert_eq!(
-        model.get_formatted_cell_value(0, 1, 2),
-        Ok("FALSE".to_string())
-    );
-    model.undo().unwrap();
-}
-
-#[test]
-fn issue_454b() {
-    let mut model = UserModel::new_empty("model", "en", "UTC").unwrap();
-    model
-        .set_user_input(
-            0,
-            1,
-            1,
-            "Le presbytère n'a rien perdu de son charme, ni le jardin de son éclat.",
-        )
-        .unwrap();
-    model.set_user_input(0, 1, 2, "=ISTEXT(A1)").unwrap();
-    assert_eq!(
-        model.get_formatted_cell_value(0, 1, 2),
-        Ok("TRUE".to_string())
-    );
-    model
-        .range_clear_all(&Area {
-            sheet: 0,
-            row: 1,
-            column: 1,
-            width: 1,
-            height: 1,
-        })
-        .unwrap();
-    assert_eq!(
-        model.get_formatted_cell_value(0, 1, 2),
-        Ok("FALSE".to_string())
-    );
-    model.undo().unwrap();
-}

base/src/test/user_model/test_defined_names.rs

@@ -423,30 +423,3 @@ fn change_scope_to_first_sheet() {
         Ok("#NAME?".to_string())
     );
 }
-
-#[test]
-fn rename_sheet() {
-    let mut model = UserModel::new_empty("model", "en", "UTC").unwrap();
-    model.new_sheet().unwrap();
-    model.set_user_input(0, 1, 1, "Hello").unwrap();
-
-    model
-        .new_defined_name("myName", None, "Sheet1!$A$1")
-        .unwrap();
-
-    model
-        .set_user_input(0, 2, 1, r#"=CONCATENATE(MyName, " world!")"#)
-        .unwrap();
-
-    assert_eq!(
-        model.get_formatted_cell_value(0, 2, 1),
-        Ok("Hello world!".to_string())
-    );
-
-    model.rename_sheet(0, "AnotherName").unwrap();
-
-    assert_eq!(
-        model.get_formatted_cell_value(0, 2, 1),
-        Ok("Hello world!".to_string())
-    );
-}

base/src/test/user_model/test_diff_queue.rs

@@ -65,8 +65,8 @@ fn queue_undo_redo_multiple() {
         model1.set_user_input(0, row, 17, "=ROW()").unwrap();
     }
 
-    model1.insert_rows(0, 3, 1).unwrap();
+    model1.insert_row(0, 3).unwrap();
-    model1.insert_rows(0, 3, 1).unwrap();
+    model1.insert_row(0, 3).unwrap();
 
     // undo al of them
     while model1.can_undo() {

base/src/test/user_model/test_general.rs

@@ -26,7 +26,7 @@ fn set_user_input_errors() {
 #[test]
 fn user_model_debug_message() {
     let model = UserModel::new_empty("model", "en", "UTC").unwrap();
-    let s = &format!("{model:?}");
+    let s = &format!("{:?}", model);
     assert_eq!(s, "UserModel");
 }
 
@@ -62,7 +62,7 @@ fn insert_remove_rows() {
     assert!(model.set_rows_height(0, 5, 5, 3.0 * height).is_ok());
 
     // remove the row
-    assert!(model.delete_rows(0, 5, 1).is_ok());
+    assert!(model.delete_row(0, 5).is_ok());
     // Row 5 has now the normal height
     assert_eq!(model.get_row_height(0, 5), Ok(height));
     // There is no value in A5
@@ -99,7 +99,7 @@ fn insert_remove_columns() {
     assert_eq!(model.get_column_width(0, 5).unwrap(), 3.0 * column_width);
 
     // remove the column
-    assert!(model.delete_columns(0, 5, 1).is_ok());
+    assert!(model.delete_column(0, 5).is_ok());
     // Column 5 has now the normal width
     assert_eq!(model.get_column_width(0, 5), Ok(column_width));
     // There is no value in E5

base/src/test/user_model/test_last_empty_cell.rs

@@ -1,55 +0,0 @@
-#![allow(clippy::unwrap_used)]
-
-use crate::constants::LAST_ROW;
-use crate::expressions::types::Area;
-use crate::test::util::new_empty_model;
-use crate::UserModel;
-
-#[test]
-fn basic_tests() {
-    let model = new_empty_model();
-    let mut model = UserModel::from_model(model);
-    // This is the first row, column 5
-    model.set_user_input(0, 3, 5, "todo").unwrap();
-
-    // Row 3 before column 5 should be empty
-    assert_eq!(
-        model
-            .get_last_non_empty_in_row_before_column(0, 3, 4)
-            .unwrap(),
-        None
-    );
-    // Row 3 before column 5 should be 5
-    assert_eq!(
-        model
-            .get_last_non_empty_in_row_before_column(0, 3, 7)
-            .unwrap(),
-        Some(5)
-    );
-}
-
-#[test]
-fn test_last_empty_cell() {
-    let model = new_empty_model();
-    let mut model = UserModel::from_model(model);
-
-    let column_g_range = Area {
-        sheet: 0,
-        row: 1,
-        column: 7,
-        width: 1,
-        height: LAST_ROW,
-    };
-
-    model
-        .update_range_style(&column_g_range, "fill.bg_color", "#333444")
-        .unwrap();
-
-    // Column 7 has a style but it is empty
-    assert_eq!(
-        model
-            .get_last_non_empty_in_row_before_column(0, 3, 14)
-            .unwrap(),
-        None
-    );
-}

base/src/test/user_model/test_multi_row_column.rs

@@ -1,173 +0,0 @@
-#![allow(clippy::unwrap_used)]
-
-use crate::{
-    constants::{LAST_COLUMN, LAST_ROW},
-    test::util::new_empty_model,
-    UserModel,
-};
-
-#[test]
-fn insert_multiple_rows_shifts_cells() {
-    let model = new_empty_model();
-    let mut model = UserModel::from_model(model);
-    // Place a value below the insertion point.
-    model.set_user_input(0, 10, 1, "42").unwrap();
-
-    // Insert 3 rows starting at row 5.
-    assert!(model.insert_rows(0, 5, 3).is_ok());
-
-    // The original value should have moved down by 3 rows.
-    assert_eq!(model.get_formatted_cell_value(0, 13, 1).unwrap(), "42");
-
-    // Undo / redo cycle should restore the same behaviour.
-    model.undo().unwrap();
-    assert_eq!(model.get_formatted_cell_value(0, 10, 1).unwrap(), "42");
-    model.redo().unwrap();
-    assert_eq!(model.get_formatted_cell_value(0, 13, 1).unwrap(), "42");
-}
-
-#[test]
-fn insert_rows_errors() {
-    let model = new_empty_model();
-    let mut model = UserModel::from_model(model);
-
-    // Negative or zero counts are rejected.
-    assert_eq!(
-        model.insert_rows(0, 1, -2),
-        Err("Cannot add a negative number of cells :)".to_string())
-    );
-    assert_eq!(
-        model.insert_rows(0, 1, 0),
-        Err("Cannot add a negative number of cells :)".to_string())
-    );
-
-    // Inserting too many rows so that the sheet would overflow.
-    let too_many = LAST_ROW; // This guarantees max_row + too_many > LAST_ROW.
-    assert_eq!(
-        model.insert_rows(0, 1, too_many),
-        Err(
-            "Cannot shift cells because that would delete cells at the end of a column".to_string()
-        )
-    );
-}
-
-#[test]
-fn insert_multiple_columns_shifts_cells() {
-    let model = new_empty_model();
-    let mut model = UserModel::from_model(model);
-    // Place a value to the right of the insertion point.
-    model.set_user_input(0, 1, 10, "99").unwrap();
-
-    // Insert 3 columns starting at column 5.
-    assert!(model.insert_columns(0, 5, 3).is_ok());
-
-    // The original value should have moved right by 3 columns.
-    assert_eq!(model.get_formatted_cell_value(0, 1, 13).unwrap(), "99");
-
-    // Undo / redo cycle.
-    model.undo().unwrap();
-    assert_eq!(model.get_formatted_cell_value(0, 1, 10).unwrap(), "99");
-    model.redo().unwrap();
-    assert_eq!(model.get_formatted_cell_value(0, 1, 13).unwrap(), "99");
-}
-
-#[test]
-fn insert_columns_errors() {
-    let model = new_empty_model();
-    let mut model = UserModel::from_model(model);
-
-    // Negative or zero counts are rejected.
-    assert_eq!(
-        model.insert_columns(0, 1, -2),
-        Err("Cannot add a negative number of cells :)".to_string())
-    );
-    assert_eq!(
-        model.insert_columns(0, 1, 0),
-        Err("Cannot add a negative number of cells :)".to_string())
-    );
-
-    // Overflow to the right.
-    let too_many = LAST_COLUMN; // Ensures max_column + too_many > LAST_COLUMN
-    assert_eq!(
-        model.insert_columns(0, 1, too_many),
-        Err("Cannot shift cells because that would delete cells at the end of a row".to_string())
-    );
-}
-
-#[test]
-fn delete_multiple_rows_shifts_cells_upwards() {
-    let model = new_empty_model();
-    let mut model = UserModel::from_model(model);
-
-    // Populate rows 10..14 (to be deleted) so that the diff builder does not fail.
-    for r in 10..15 {
-        model.set_user_input(0, r, 1, "del").unwrap();
-    }
-    // Place a value below the deletion range.
-    model.set_user_input(0, 20, 1, "keep").unwrap();
-
-    // Delete 5 rows starting at row 10.
-    assert!(model.delete_rows(0, 10, 5).is_ok());
-
-    // The value originally at row 20 should now be at row 15.
-    assert_eq!(model.get_formatted_cell_value(0, 15, 1).unwrap(), "keep");
-
-    // Undo / redo cycle.
-    model.undo().unwrap();
-    assert_eq!(model.get_formatted_cell_value(0, 20, 1).unwrap(), "keep");
-    model.redo().unwrap();
-    assert_eq!(model.get_formatted_cell_value(0, 15, 1).unwrap(), "keep");
-}
-
-#[test]
-fn delete_rows_errors() {
-    let model = new_empty_model();
-    let mut model = UserModel::from_model(model);
-
-    // Negative or zero counts are rejected.
-    assert_eq!(
-        model.delete_rows(0, 1, -3),
-        Err("Please use insert rows instead".to_string())
-    );
-    assert_eq!(
-        model.delete_rows(0, 1, 0),
-        Err("Please use insert rows instead".to_string())
-    );
-}
-
-#[test]
-fn delete_multiple_columns_shifts_cells_left() {
-    let model = new_empty_model();
-    let mut model = UserModel::from_model(model);
-
-    // Place a value to the right of the deletion range.
-    model.set_user_input(0, 1, 15, "88").unwrap();
-
-    // Delete 4 columns starting at column 5.
-    assert!(model.delete_columns(0, 5, 4).is_ok());
-
-    // The value originally at column 15 should now be at column 11.
-    assert_eq!(model.get_formatted_cell_value(0, 1, 11).unwrap(), "88");
-
-    // Undo / redo cycle.
-    model.undo().unwrap();
-    assert_eq!(model.get_formatted_cell_value(0, 1, 15).unwrap(), "88");
-    model.redo().unwrap();
-    assert_eq!(model.get_formatted_cell_value(0, 1, 11).unwrap(), "88");
-}
-
-#[test]
-fn delete_columns_errors() {
-    let model = new_empty_model();
-    let mut model = UserModel::from_model(model);
-
-    // Negative or zero counts are rejected.
-    assert_eq!(
-        model.delete_columns(0, 1, -4),
-        Err("Please use insert columns instead".to_string())
-    );
-    assert_eq!(
-        model.delete_columns(0, 1, 0),
-        Err("Please use insert columns instead".to_string())
-    );
-}

base/src/test/user_model/test_paste_csv.rs

@@ -24,7 +24,6 @@ fn csv_paste() {
         model.get_formatted_cell_value(0, 7, 7),
         Ok("21".to_string())
     );
-    assert_eq!([4, 2, 5, 4], model.get_selected_view().range);
 }
 
 #[test]
@@ -46,7 +45,6 @@ fn csv_paste_formula() {
         model.get_formatted_cell_value(0, 1, 1),
         Ok("2022".to_string())
     );
-    assert_eq!([1, 1, 1, 1], model.get_selected_view().range);
 }
 
 #[test]
@@ -71,7 +69,6 @@ fn tsv_crlf_paste() {
         model.get_formatted_cell_value(0, 7, 7),
         Ok("21".to_string())
     );
-    assert_eq!([4, 2, 5, 4], model.get_selected_view().range);
 }
 
 #[test]
@@ -167,7 +164,7 @@ fn copy_paste_internal() {
     let copy = model.copy_to_clipboard().unwrap();
     assert_eq!(
         copy.csv,
-        "42\t127\n\"A season of faith\t \"\"perfection\"\"\""
+        "42\t127\n\"A season of faith\t \"\"perfection\"\"\"\t\n"
     );
     assert_eq!(copy.range, (1, 1, 2, 2));
 

base/src/test/user_model/test_row_column.rs

@@ -14,7 +14,7 @@ fn simple_insert_row() {
     for row in 1..5 {
         assert!(model.set_user_input(sheet, row, column, "123").is_ok());
     }
-    assert!(model.insert_rows(sheet, 3, 1).is_ok());
+    assert!(model.insert_row(sheet, 3).is_ok());
     assert_eq!(
         model.get_formatted_cell_value(sheet, 3, column).unwrap(),
         ""
@@ -40,7 +40,7 @@ fn simple_insert_column() {
     for column in 1..5 {
         assert!(model.set_user_input(sheet, row, column, "123").is_ok());
     }
-    assert!(model.insert_columns(sheet, 3, 1).is_ok());
+    assert!(model.insert_column(sheet, 3).is_ok());
     assert_eq!(model.get_formatted_cell_value(sheet, row, 3).unwrap(), "");
 
     assert!(model.undo().is_ok());
@@ -62,7 +62,7 @@ fn simple_delete_column() {
         .set_columns_width(0, 5, 5, DEFAULT_COLUMN_WIDTH * 3.0)
         .unwrap();
 
-    model.delete_columns(0, 5, 1).unwrap();
+    model.delete_column(0, 5).unwrap();
 
     assert_eq!(model.get_formatted_cell_value(0, 2, 5), Ok("".to_string()));
     assert_eq!(model.get_column_width(0, 5), Ok(DEFAULT_COLUMN_WIDTH));
@@ -92,20 +92,20 @@ fn delete_column_errors() {
     let model = new_empty_model();
     let mut model = UserModel::from_model(model);
     assert_eq!(
-        model.delete_columns(1, 1, 1),
+        model.delete_column(1, 1),
         Err("Invalid sheet index".to_string())
     );
 
     assert_eq!(
-        model.delete_columns(0, 0, 1),
+        model.delete_column(0, 0),
         Err("Column number '0' is not valid.".to_string())
     );
     assert_eq!(
-        model.delete_columns(0, LAST_COLUMN + 1, 1),
+        model.delete_column(0, LAST_COLUMN + 1),
-        Err(format!("Column number '{}' is not valid.", LAST_COLUMN + 1))
+        Err("Column number '16385' is not valid.".to_string())
     );
 
-    assert_eq!(model.delete_columns(0, LAST_COLUMN, 1), Ok(()));
+    assert_eq!(model.delete_column(0, LAST_COLUMN), Ok(()));
 }
 
 #[test]
@@ -119,7 +119,7 @@ fn simple_delete_row() {
         .set_rows_height(0, 15, 15, DEFAULT_ROW_HEIGHT * 3.0)
         .unwrap();
 
-    model.delete_rows(0, 15, 1).unwrap();
+    model.delete_row(0, 15).unwrap();
 
     assert_eq!(model.get_formatted_cell_value(0, 15, 6), Ok("".to_string()));
     assert_eq!(model.get_row_height(0, 15), Ok(DEFAULT_ROW_HEIGHT));
@@ -150,7 +150,7 @@ fn simple_delete_row_no_style() {
     let mut model = UserModel::from_model(model);
     model.set_user_input(0, 15, 4, "3").unwrap();
     model.set_user_input(0, 15, 6, "=D15*2").unwrap();
-    model.delete_rows(0, 15, 1).unwrap();
+    model.delete_row(0, 15).unwrap();
 
     assert_eq!(model.get_formatted_cell_value(0, 15, 6), Ok("".to_string()));
 }
@@ -170,7 +170,7 @@ fn row_heigh_increases_automatically() {
     model
         .set_user_input(0, 1, 1, "My home in Canada had horses\nAnd monkeys!")
         .unwrap();
-    assert_eq!(model.get_row_height(0, 1), Ok(40.5));
+    assert_eq!(model.get_row_height(0, 1), Ok(2.0 * DEFAULT_ROW_HEIGHT));
 }
 
 #[test]
@@ -180,14 +180,14 @@ fn insert_row_evaluates() {
     model.set_user_input(0, 1, 1, "42").unwrap();
     model.set_user_input(0, 1, 2, "=A1*2").unwrap();
 
-    assert!(model.insert_rows(0, 1, 1).is_ok());
+    assert!(model.insert_row(0, 1).is_ok());
     assert_eq!(model.get_formatted_cell_value(0, 2, 2).unwrap(), "84");
     model.undo().unwrap();
     assert_eq!(model.get_formatted_cell_value(0, 1, 2).unwrap(), "84");
     model.redo().unwrap();
     assert_eq!(model.get_formatted_cell_value(0, 2, 2).unwrap(), "84");
 
-    model.delete_rows(0, 1, 1).unwrap();
+    model.delete_row(0, 1).unwrap();
     assert_eq!(model.get_formatted_cell_value(0, 1, 2).unwrap(), "84");
     assert_eq!(model.get_cell_content(0, 1, 2).unwrap(), "=A1*2");
 }
@@ -199,7 +199,7 @@ fn insert_column_evaluates() {
     model.set_user_input(0, 1, 1, "42").unwrap();
     model.set_user_input(0, 10, 1, "=A1*2").unwrap();
 
-    assert!(model.insert_columns(0, 1, 1).is_ok());
+    assert!(model.insert_column(0, 1).is_ok());
     assert_eq!(model.get_formatted_cell_value(0, 10, 2).unwrap(), "84");
 
     model.undo().unwrap();
@@ -207,7 +207,7 @@ fn insert_column_evaluates() {
     model.redo().unwrap();
     assert_eq!(model.get_formatted_cell_value(0, 10, 2).unwrap(), "84");
 
-    model.delete_columns(0, 1, 1).unwrap();
+    model.delete_column(0, 1).unwrap();
     assert_eq!(model.get_formatted_cell_value(0, 10, 1).unwrap(), "84");
     assert_eq!(model.get_cell_content(0, 10, 1).unwrap(), "=A1*2");
 }

base/src/test/user_model/test_view.rs

@@ -55,7 +55,7 @@ fn set_the_range_does_not_set_the_cell() {
     assert_eq!(
         model.set_selected_range(5, 4, 10, 6),
         Err(
-            "The selected cell is not in one of the corners. Row: '1' and row range '(5, 10)'"
+            "The selected cells is not in one of the corners. Row: '1' and row range '(5, 10)'"
                 .to_string()
         )
     );

base/src/test/user_model/util.rs

@@ -11,10 +11,11 @@ impl UserModel {
             r##"{{
                 "item": {{
                     "style": "thin",
-                    "color": "{color}"
+                    "color": "{}"
                 }},
                 "type": "All"
-            }}"##
+            }}"##,
+            color
         ))
         .unwrap();
         let range = &Area {
@@ -39,10 +40,11 @@ impl UserModel {
             r##"{{
                 "item": {{
                     "style": "thin",
-                    "color": "{color}"
+                    "color": "{}"
                 }},
-                "type": "{kind}"
+                "type": "{}"
-            }}"##
+            }}"##,
+            color, kind
         ))
         .unwrap();
         let range = &Area {

base/src/test/util.rs

@@ -13,7 +13,7 @@ impl Model {
         if cell.contains('!') {
             self.parse_reference(cell).unwrap()
         } else {
-            self.parse_reference(&format!("Sheet1!{cell}")).unwrap()
+            self.parse_reference(&format!("Sheet1!{}", cell)).unwrap()
         }
     }
     pub fn _set(&mut self, cell: &str, value: &str) {

base/src/types.rs

@@ -303,14 +303,7 @@ impl Default for Styles {
         Styles {
             num_fmts: vec![],
             fonts: vec![Default::default()],
-            fills: vec![
+            fills: vec![Default::default()],
-                Default::default(),
-                Fill {
-                    pattern_type: "gray125".to_string(),
-                    fg_color: None,
-                    bg_color: None,
-                },
-            ],
             borders: vec![Default::default()],
             cell_style_xfs: vec![Default::default()],
             cell_xfs: vec![Default::default()],

base/src/units.rs

@@ -299,7 +299,6 @@ impl Model {
             Node::WrongVariableKind(_) => None,
             Node::CompareKind { .. } => None,
             Node::OpPowerKind { .. } => None,
-            Node::ImplicitIntersection { .. } => None,
         }
     }
 

base/src/user_model/common.rs

@@ -6,15 +6,15 @@ use csv::{ReaderBuilder, WriterBuilder};
 use serde::{Deserialize, Serialize};
 
 use crate::{
-    constants::{self, LAST_COLUMN, LAST_ROW},
+    constants::{self, DEFAULT_ROW_HEIGHT, LAST_COLUMN, LAST_ROW},
     expressions::{
         types::{Area, CellReferenceIndex},
         utils::{is_valid_column_number, is_valid_row},
     },
     model::Model,
     types::{
-        Alignment, BorderItem, Cell, CellType, Col, HorizontalAlignment, SheetProperties,
+        Alignment, BorderItem, CellType, Col, HorizontalAlignment, SheetProperties, SheetState,
-        SheetState, Style, VerticalAlignment,
+        Style, VerticalAlignment,
     },
     utils::is_valid_hex_color,
 };
@@ -430,14 +430,10 @@ impl UserModel {
             new_value: value.to_string(),
             old_value: Box::new(old_value),
         }];
-        let style = self.model.get_style_for_cell(sheet, row, column)?;
 
-        let line_count = value.split('\n').count() as f64;
+        let line_count = value.split('\n').count();
         let row_height = self.model.get_row_height(sheet, row)?;
-        // This is in sync with the front-end auto fit row
+        let cell_height = (line_count as f64) * DEFAULT_ROW_HEIGHT;
-        let font_size = style.font.sz as f64;
-        let line_height = font_size * 1.5;
-        let cell_height = (line_count - 1.0) * line_height + 8.0 + font_size;
         if cell_height > row_height {
             diff_list.push(Diff::SetRowHeight {
                 sheet,
@@ -627,7 +623,6 @@ impl UserModel {
             }
         }
         self.push_diff_list(diff_list);
-        self.evaluate_if_not_paused();
         Ok(())
     }
 
@@ -657,16 +652,11 @@ impl UserModel {
             }
         }
         self.push_diff_list(diff_list);
-        self.evaluate_if_not_paused();
         Ok(())
     }
 
-    fn clear_column_formatting(
+    fn clear_column_formatting(&mut self, sheet: u32, column: i32) -> Result<(), String> {
-        &mut self,
+        let mut diff_list = Vec::new();
-        sheet: u32,
-        column: i32,
-        diff_list: &mut Vec<Diff>,
-    ) -> Result<(), String> {
         let old_value = self.model.get_column_style(sheet, column)?;
         self.model.delete_column_style(sheet, column)?;
         diff_list.push(Diff::DeleteColumnStyle {
@@ -745,15 +735,12 @@ impl UserModel {
                 }
             }
         }
+        self.push_diff_list(diff_list);
         Ok(())
     }
 
-    fn clear_row_formatting(
+    fn clear_row_formatting(&mut self, sheet: u32, row: i32) -> Result<(), String> {
-        &mut self,
+        let mut diff_list = Vec::new();
-        sheet: u32,
-        row: i32,
-        diff_list: &mut Vec<Diff>,
-    ) -> Result<(), String> {
         let old_value = self.model.get_row_style(sheet, row)?;
         self.model.delete_row_style(sheet, row)?;
         diff_list.push(Diff::DeleteRowStyle {
@@ -800,6 +787,8 @@ impl UserModel {
                 }
             }
         }
+        self.push_diff_list(diff_list);
+
         Ok(())
     }
 
@@ -810,21 +799,19 @@ impl UserModel {
     /// * [UserModel::range_clear_contents]
     pub fn range_clear_formatting(&mut self, range: &Area) -> Result<(), String> {
         let sheet = range.sheet;
-        let mut diff_list = Vec::new();
         if range.row == 1 && range.height == LAST_ROW {
             for column in range.column..range.column + range.width {
-                self.clear_column_formatting(sheet, column, &mut diff_list)?;
+                self.clear_column_formatting(sheet, column)?;
             }
-            self.push_diff_list(diff_list);
             return Ok(());
         }
         if range.column == 1 && range.width == LAST_COLUMN {
             for row in range.row..range.row + range.height {
-                self.clear_row_formatting(sheet, row, &mut diff_list)?;
+                self.clear_row_formatting(sheet, row)?;
             }
-            self.push_diff_list(diff_list);
             return Ok(());
         }
+        let mut diff_list = Vec::new();
         for row in range.row..range.row + range.height {
             for column in range.column..range.column + range.width {
                 if let Some(old_style) = self.model.get_cell_style_or_none(sheet, row, column)? {
@@ -860,127 +847,80 @@ impl UserModel {
         Ok(())
     }
 
-    /// Inserts `row_count` blank rows starting at `row` (both 0-based).
+    /// Inserts a row
     ///
-    /// Parameters
+    /// See also:
-    /// * `sheet` – worksheet index.
+    /// * [Model::insert_rows]
-    /// * `row` – first row to insert.
+    pub fn insert_row(&mut self, sheet: u32, row: i32) -> Result<(), String> {
-    /// * `row_count` – number of rows (> 0).
+        let diff_list = vec![Diff::InsertRow { sheet, row }];
-    ///
-    /// History: the method pushes `row_count` [`crate::user_model::history::Diff::InsertRow`]
-    /// items **all using the same `row` index**.  Replaying those diffs (undo / redo)
-    /// is therefore immune to the row-shifts that happen after each individual
-    /// insertion.
-    ///
-    /// See also [`Model::insert_rows`].
-    pub fn insert_rows(&mut self, sheet: u32, row: i32, row_count: i32) -> Result<(), String> {
-        self.model.insert_rows(sheet, row, row_count)?;
-
-        let diff_list = vec![Diff::InsertRows {
-            sheet,
-            row,
-            count: row_count,
-        }];
         self.push_diff_list(diff_list);
+        self.model.insert_rows(sheet, row, 1)?;
         self.evaluate_if_not_paused();
         Ok(())
     }
 
-    /// Inserts `column_count` blank columns starting at `column` (0-based).
+    /// Deletes a row
     ///
-    /// Parameters
+    /// See also:
-    /// * `sheet` – worksheet index.
+    /// * [Model::delete_rows]
-    /// * `column` – first column to insert.
+    pub fn delete_row(&mut self, sheet: u32, row: i32) -> Result<(), String> {
-    /// * `column_count` – number of columns (> 0).
-    ///
-    /// History: pushes one [`crate::user_model::history::Diff::InsertColumn`]
-    /// per inserted column, all with the same `column` value, preventing index
-    /// drift when the diffs are reapplied.
-    ///
-    /// See also [`Model::insert_columns`].
-    pub fn insert_columns(
-        &mut self,
-        sheet: u32,
-        column: i32,
-        column_count: i32,
-    ) -> Result<(), String> {
-        self.model.insert_columns(sheet, column, column_count)?;
-
-        let diff_list = vec![Diff::InsertColumns {
-            sheet,
-            column,
-            count: column_count,
-        }];
-        self.push_diff_list(diff_list);
-        self.evaluate_if_not_paused();
-        Ok(())
-    }
-
-    /// Deletes `row_count` rows starting at `row`.
-    ///
-    /// History: a [`crate::user_model::history::Diff::DeleteRow`] is created for
-    /// each row, ordered **bottom → top**.  Undo therefore recreates rows from
-    /// top → bottom and redo removes them bottom → top, avoiding index drift.
-    ///
-    /// See also [`Model::delete_rows`].
-    pub fn delete_rows(&mut self, sheet: u32, row: i32, row_count: i32) -> Result<(), String> {
-        let worksheet = self.model.workbook.worksheet(sheet)?;
-        let mut old_data = Vec::new();
-        // Collect data for all rows to be deleted
-        for r in row..row + row_count {
         let mut row_data = None;
+        let worksheet = self.model.workbook.worksheet(sheet)?;
         for rd in &worksheet.rows {
-                if rd.r == r {
+            if rd.r == row {
                 row_data = Some(rd.clone());
                 break;
             }
         }
-            let data = match worksheet.sheet_data.get(&r) {
+        let data = match worksheet.sheet_data.get(&row) {
             Some(s) => s.clone(),
-                None => HashMap::new(),
+            None => return Err(format!("Row number '{row}' is not valid.")),
         };
-            old_data.push(RowData {
+        let old_data = Box::new(RowData {
             row: row_data,
             data,
         });
-        }
+        let diff_list = vec![Diff::DeleteRow {
-
-        self.model.delete_rows(sheet, row, row_count)?;
-
-        let diff_list = vec![Diff::DeleteRows {
             sheet,
             row,
-            count: row_count,
             old_data,
         }];
         self.push_diff_list(diff_list);
+        self.model.delete_rows(sheet, row, 1)?;
         self.evaluate_if_not_paused();
         Ok(())
     }
 
-    /// Deletes `column_count` columns starting at `column`.
+    /// Inserts a column
     ///
-    /// History: pushes one [`crate::user_model::history::Diff::DeleteColumn`]
+    /// See also:
-    /// per column, **right → left**, so replaying the list is always safe with
+    /// * [Model::insert_columns]
-    /// respect to index shifts.
+    pub fn insert_column(&mut self, sheet: u32, column: i32) -> Result<(), String> {
+        let diff_list = vec![Diff::InsertColumn { sheet, column }];
+        self.push_diff_list(diff_list);
+        self.model.insert_columns(sheet, column, 1)?;
+        self.evaluate_if_not_paused();
+        Ok(())
+    }
+
+    /// Deletes a column
     ///
-    /// See also [`Model::delete_columns`].
+    /// See also:
-    pub fn delete_columns(
+    /// * [Model::delete_columns]
-        &mut self,
+    pub fn delete_column(&mut self, sheet: u32, column: i32) -> Result<(), String> {
-        sheet: u32,
-        column: i32,
-        column_count: i32,
-    ) -> Result<(), String> {
         let worksheet = self.model.workbook.worksheet(sheet)?;
-        let mut old_data = Vec::new();
+        if !is_valid_column_number(column) {
-        // Collect data for all columns to be deleted
+            return Err(format!("Column number '{column}' is not valid."));
-        for c in column..column + column_count {
+        }
+
         let mut column_data = None;
         for col in &worksheet.cols {
-                if c >= col.min && c <= col.max {
+            let min = col.min;
+            let max = col.max;
+            if column >= min && column <= max {
                 column_data = Some(Col {
-                        min: c,
+                    min: column,
-                        max: c,
+                    max: column,
                     width: col.width,
                     custom_width: col.custom_width,
                     style: col.style,
@@ -990,54 +930,22 @@ impl UserModel {
         }
 
         let mut data = HashMap::new();
-            for (row_idx, row_data) in &worksheet.sheet_data {
+        for (row, row_data) in &worksheet.sheet_data {
-                if let Some(cell) = row_data.get(&c) {
+            if let Some(cell) = row_data.get(&column) {
-                    data.insert(*row_idx, cell.clone());
+                data.insert(*row, cell.clone());
             }
         }
 
-            old_data.push(ColumnData {
+        let diff_list = vec![Diff::DeleteColumn {
+            sheet,
+            column,
+            old_data: Box::new(ColumnData {
                 column: column_data,
                 data,
-            });
+            }),
-        }
-
-        self.model.delete_columns(sheet, column, column_count)?;
-
-        let diff_list = vec![Diff::DeleteColumns {
-            sheet,
-            column,
-            count: column_count,
-            old_data,
         }];
         self.push_diff_list(diff_list);
-        self.evaluate_if_not_paused();
+        self.model.delete_columns(sheet, column, 1)?;
-        Ok(())
-    }
-
-    /// Moves a column horizontally and adjusts formulas
-    pub fn move_column_action(
-        &mut self,
-        sheet: u32,
-        column: i32,
-        delta: i32,
-    ) -> Result<(), String> {
-        let diff_list = vec![Diff::MoveColumn {
-            sheet,
-            column,
-            delta,
-        }];
-        self.push_diff_list(diff_list);
-        self.model.move_column_action(sheet, column, delta)?;
-        self.evaluate_if_not_paused();
-        Ok(())
-    }
-
-    /// Moves a row vertically and adjusts formulas
-    pub fn move_row_action(&mut self, sheet: u32, row: i32, delta: i32) -> Result<(), String> {
-        let diff_list = vec![Diff::MoveRow { sheet, row, delta }];
-        self.push_diff_list(diff_list);
-        self.model.move_row_action(sheet, row, delta)?;
         self.evaluate_if_not_paused();
         Ok(())
     }
@@ -1575,10 +1483,10 @@ impl UserModel {
             return Err(format!("Invalid row: '{first_row}'"));
         }
         if !is_valid_column_number(last_column) {
-            return Err(format!("Invalid column: '{last_column}'"));
+            return Err(format!("Invalid column: '{}'", last_column));
         }
         if !is_valid_row(last_row) {
-            return Err(format!("Invalid row: '{last_row}'"));
+            return Err(format!("Invalid row: '{}'", last_row));
         }
 
         if !is_valid_row(to_column) {
@@ -1683,66 +1591,6 @@ impl UserModel {
         Ok(self.model.workbook.worksheet(sheet)?.show_grid_lines)
     }
 
-    /// Returns the largest column in the row less than a column whose cell has a non empty value.
-    /// If there are none it returns `None`.
-    /// This is useful when rendering a part of a worksheet to know which cells spill over
-    pub fn get_last_non_empty_in_row_before_column(
-        &self,
-        sheet: u32,
-        row: i32,
-        column: i32,
-    ) -> Result<Option<i32>, String> {
-        let worksheet = self.model.workbook.worksheet(sheet)?;
-        let data = worksheet.sheet_data.get(&row);
-        if let Some(row_data) = data {
-            let mut last_column = None;
-            let mut columns: Vec<i32> = row_data.keys().copied().collect();
-            columns.sort_unstable();
-            for col in columns {
-                if col < column {
-                    if let Some(cell) = worksheet.cell(row, col) {
-                        if matches!(cell, Cell::EmptyCell { .. }) {
-                            continue;
-                        }
-                    }
-                    last_column = Some(col);
-                }
-            }
-            Ok(last_column)
-        } else {
-            Ok(None)
-        }
-    }
-
-    /// Returns the smallest column in the row larger than "column" whose cell has a non empty value.
-    /// If there are none it returns `None`.
-    /// This is useful when rendering a part of a worksheet to know which cells spill over
-    pub fn get_first_non_empty_in_row_after_column(
-        &self,
-        sheet: u32,
-        row: i32,
-        column: i32,
-    ) -> Result<Option<i32>, String> {
-        let worksheet = self.model.workbook.worksheet(sheet)?;
-        let data = worksheet.sheet_data.get(&row);
-        if let Some(row_data) = data {
-            let mut columns: Vec<i32> = row_data.keys().copied().collect();
-            // We sort the keys to ensure we are going from left to right
-            columns.sort_unstable();
-            for col in columns {
-                if col > column {
-                    if let Some(cell) = worksheet.cell(row, col) {
-                        if matches!(cell, Cell::EmptyCell { .. }) {
-                            continue;
-                        }
-                    }
-                    return Ok(Some(col));
-                }
-            }
-        }
-        Ok(None)
-    }
-
     /// Returns a copy of the selected area
     pub fn copy_to_clipboard(&self) -> Result<Clipboard, String> {
         let selected_area = self.get_selected_view();
@@ -1771,18 +1619,18 @@ impl UserModel {
                 text_row.push(text);
             }
             wtr.write_record(text_row)
-                .map_err(|e| format!("Error while processing csv: {e}"))?;
+                .map_err(|e| format!("Error while processing csv: {}", e))?;
             data.insert(row, data_row);
         }
 
         let csv = String::from_utf8(
             wtr.into_inner()
-                .map_err(|e| format!("Processing error: '{e}'"))?,
+                .map_err(|e| format!("Processing error: '{}'", e))?,
         )
-        .map_err(|e| format!("Error converting from utf8: '{e}'"))?;
+        .map_err(|e| format!("Error converting from utf8: '{}'", e))?;
 
         Ok(Clipboard {
-            csv: csv.trim().to_string(),
+            csv,
             data,
             sheet,
             range: (row_start, column_start, row_end, column_end),
@@ -1950,7 +1798,7 @@ impl UserModel {
         }
         self.push_diff_list(diff_list);
         // select the pasted area
-        self.set_selected_range(area.row, area.column, row - 1, column - 1)?;
+        self.set_selected_range(area.row, area.column, row, column)?;
         self.evaluate_if_not_paused();
         Ok(())
     }
@@ -2115,56 +1963,45 @@ impl UserModel {
                         self.model.cell_clear_all(*sheet, *row, *column)?;
                     }
                 }
-                Diff::InsertRows { sheet, row, count } => {
+                Diff::InsertRow { sheet, row } => {
-                    self.model.delete_rows(*sheet, *row, *count)?;
+                    self.model.delete_rows(*sheet, *row, 1)?;
                     needs_evaluation = true;
                 }
-                Diff::DeleteRows {
+                Diff::DeleteRow {
                     sheet,
                     row,
-                    count: _,
                     old_data,
                 } => {
                     needs_evaluation = true;
-                    self.model
+                    self.model.insert_rows(*sheet, *row, 1)?;
-                        .insert_rows(*sheet, *row, old_data.len() as i32)?;
                     let worksheet = self.model.workbook.worksheet_mut(*sheet)?;
-                    for (i, row_data) in old_data.iter().enumerate() {
+                    if let Some(row_data) = old_data.row.clone() {
-                        let r = *row + i as i32;
+                        worksheet.rows.push(row_data);
-                        if let Some(row_style) = row_data.row.clone() {
-                            worksheet.rows.push(row_style);
                     }
-                        worksheet.sheet_data.insert(r, row_data.data.clone());
+                    worksheet.sheet_data.insert(*row, old_data.data.clone());
                 }
-                }
+                Diff::InsertColumn { sheet, column } => {
-                Diff::InsertColumns {
+                    self.model.delete_columns(*sheet, *column, 1)?;
-                    sheet,
-                    column,
-                    count,
-                } => {
-                    self.model.delete_columns(*sheet, *column, *count)?;
                     needs_evaluation = true;
                 }
-                Diff::DeleteColumns {
+                Diff::DeleteColumn {
                     sheet,
                     column,
-                    count: _,
                     old_data,
                 } => {
                     needs_evaluation = true;
-                    self.model
+                    // inserts an empty column
-                        .insert_columns(*sheet, *column, old_data.len() as i32)?;
+                    self.model.insert_columns(*sheet, *column, 1)?;
+                    // puts all the data back
                     let worksheet = self.model.workbook.worksheet_mut(*sheet)?;
-                    for (i, col_data) in old_data.iter().enumerate() {
+                    for (row, cell) in &old_data.data {
-                        let c = *column + i as i32;
+                        worksheet.update_cell(*row, *column, cell.clone())?;
-                        for (row, cell) in &col_data.data {
-                            worksheet.update_cell(*row, c, cell.clone())?;
                     }
-                        if let Some(col) = &col_data.column {
+                    // makes sure that the width and style is correct
+                    if let Some(col) = &old_data.column {
                         let width = col.width * constants::COLUMN_WIDTH_FACTOR;
                         let style = col.style;
-                            worksheet.set_column_width_and_style(c, width, style)?;
+                        worksheet.set_column_width_and_style(*column, width, style)?;
-                        }
                     }
                 }
                 Diff::SetFrozenRowsCount {
@@ -2322,21 +2159,6 @@ impl UserModel {
                         self.model.delete_row_style(*sheet, *row)?;
                     }
                 }
-                Diff::MoveColumn {
-                    sheet,
-                    column,
-                    delta,
-                } => {
-                    // For undo, we apply the opposite move
-                    self.model
-                        .move_column_action(*sheet, *column + *delta, -*delta)?;
-                    needs_evaluation = true;
-                }
-                Diff::MoveRow { sheet, row, delta } => {
-                    // For undo, we apply the opposite move
-                    self.model.move_row_action(*sheet, *row + *delta, -*delta)?;
-                    needs_evaluation = true;
-                }
             }
         }
         if needs_evaluation {
@@ -2405,34 +2227,28 @@ impl UserModel {
                 } => self
                     .model
                     .set_cell_style(*sheet, *row, *column, new_value)?,
-                Diff::InsertRows { sheet, row, count } => {
+                Diff::InsertRow { sheet, row } => {
-                    self.model.insert_rows(*sheet, *row, *count)?;
+                    self.model.insert_rows(*sheet, *row, 1)?;
                     needs_evaluation = true;
                 }
-                Diff::DeleteRows {
+                Diff::DeleteRow {
                     sheet,
                     row,
-                    count,
                     old_data: _,
                 } => {
-                    self.model.delete_rows(*sheet, *row, *count)?;
+                    self.model.delete_rows(*sheet, *row, 1)?;
                     needs_evaluation = true;
                 }
-                Diff::InsertColumns {
+                Diff::InsertColumn { sheet, column } => {
-                    sheet,
-                    column,
-                    count,
-                } => {
-                    self.model.insert_columns(*sheet, *column, *count)?;
                     needs_evaluation = true;
+                    self.model.insert_columns(*sheet, *column, 1)?;
                 }
-                Diff::DeleteColumns {
+                Diff::DeleteColumn {
                     sheet,
                     column,
-                    count,
                     old_data: _,
                 } => {
-                    self.model.delete_columns(*sheet, *column, *count)?;
+                    self.model.delete_columns(*sheet, *column, 1)?;
                     needs_evaluation = true;
                 }
                 Diff::SetFrozenRowsCount {
@@ -2544,18 +2360,6 @@ impl UserModel {
                 } => {
                     self.model.delete_row_style(*sheet, *row)?;
                 }
-                Diff::MoveColumn {
-                    sheet,
-                    column,
-                    delta,
-                } => {
-                    self.model.move_column_action(*sheet, *column, *delta)?;
-                    needs_evaluation = true;
-                }
-                Diff::MoveRow { sheet, row, delta } => {
-                    self.model.move_row_action(*sheet, *row, *delta)?;
-                    needs_evaluation = true;
-                }
             }
         }
 
@@ -2583,7 +2387,7 @@ mod tests {
             VerticalAlignment::Top,
         ];
         for a in all {
-            assert_eq!(vertical(&format!("{a}")), Ok(a));
+            assert_eq!(vertical(&format!("{}", a)), Ok(a));
         }
     }
 
@@ -2600,7 +2404,7 @@ mod tests {
             HorizontalAlignment::Right,
         ];
         for a in all {
-            assert_eq!(horizontal(&format!("{a}")), Ok(a));
+            assert_eq!(horizontal(&format!("{}", a)), Ok(a));
         }
     }
 }

base/src/user_model/history.rs

@@ -87,27 +87,23 @@ pub(crate) enum Diff {
         row: i32,
         old_value: Box<Option<Style>>,
     },
-    InsertRows {
+    InsertRow {
         sheet: u32,
         row: i32,
-        count: i32,
     },
-    DeleteRows {
+    DeleteRow {
         sheet: u32,
         row: i32,
-        count: i32,
+        old_data: Box<RowData>,
-        old_data: Vec<RowData>,
     },
-    InsertColumns {
+    InsertColumn {
         sheet: u32,
         column: i32,
-        count: i32,
     },
-    DeleteColumns {
+    DeleteColumn {
         sheet: u32,
         column: i32,
-        count: i32,
+        old_data: Box<ColumnData>,
-        old_data: Vec<ColumnData>,
     },
     DeleteSheet {
         sheet: u32,
@@ -165,16 +161,6 @@ pub(crate) enum Diff {
         new_scope: Option<u32>,
         new_formula: String,
     },
-    MoveColumn {
-        sheet: u32,
-        column: i32,
-        delta: i32,
-    },
-    MoveRow {
-        sheet: u32,
-        row: i32,
-        delta: i32,
-    },
     // FIXME: we are missing SetViewDiffs
 }
 

base/src/user_model/mod.rs

@@ -3,7 +3,7 @@
 mod border;
 mod border_utils;
 mod common;
-pub(crate) mod history;
+mod history;
 mod ui;
 
 pub use common::UserModel;

base/src/user_model/ui.rs

@@ -2,11 +2,7 @@
 
 use serde::{Deserialize, Serialize};
 
-use crate::{
+use crate::expressions::utils::{is_valid_column_number, is_valid_row};
-    constants::{LAST_COLUMN, LAST_ROW},
-    expressions::utils::{is_valid_column_number, is_valid_row},
-    worksheet::NavigationDirection,
-};
 
 use super::common::UserModel;
 
@@ -80,7 +76,7 @@ impl UserModel {
     /// Sets the the selected sheet
     pub fn set_selected_sheet(&mut self, sheet: u32) -> Result<(), String> {
         if self.model.workbook.worksheet(sheet).is_err() {
-            return Err(format!("Invalid worksheet index {sheet}"));
+            return Err(format!("Invalid worksheet index {}", sheet));
         }
         if let Some(view) = self.model.workbook.views.get_mut(&0) {
             view.sheet = sheet;
@@ -102,7 +98,7 @@ impl UserModel {
             return Err(format!("Invalid row: '{row}'"));
         }
         if self.model.workbook.worksheet(sheet).is_err() {
-            return Err(format!("Invalid worksheet index {sheet}"));
+            return Err(format!("Invalid worksheet index {}", sheet));
         }
         if let Ok(worksheet) = self.model.workbook.worksheet_mut(sheet) {
             if let Some(view) = worksheet.views.get_mut(&0) {
@@ -114,7 +110,7 @@ impl UserModel {
         Ok(())
     }
 
-    /// Sets the selected range. Note that the selected cell must be in the selected range.
+    /// Sets the selected range. Note that the selected cell must be in one of the corners.
     pub fn set_selected_range(
         &mut self,
         start_row: i32,
@@ -142,39 +138,25 @@ impl UserModel {
             return Err(format!("Invalid row: '{end_row}'"));
         }
         if self.model.workbook.worksheet(sheet).is_err() {
-            return Err(format!("Invalid worksheet index {sheet}"));
+            return Err(format!("Invalid worksheet index {}", sheet));
         }
         if let Ok(worksheet) = self.model.workbook.worksheet_mut(sheet) {
             if let Some(view) = worksheet.views.get_mut(&0) {
                 let selected_row = view.row;
                 let selected_column = view.column;
-                if start_row == 1 && end_row == LAST_ROW {
+                // The selected cells must be on one of the corners of the selected range:
-                    // full row selected. The cell must be at the top or the bottom of the range
-                    if selected_column != start_column && selected_column != end_column {
-                        return Err(format!(
-                            "The selected cell is not the column edge. Column '{selected_column}' and column range '({start_column}, {end_column})'"
-                        ));
-                    }
-                } else if start_column == 1 && end_column == LAST_COLUMN {
-                    // full column selected. The cell must be at the left or the right of the range
                 if selected_row != start_row && selected_row != end_row {
                     return Err(format!(
-                            "The selected cell is not in the row edge. Row: '{selected_row}' and row range '({start_row}, {end_row})'"
+                        "The selected cells is not in one of the corners. Row: '{}' and row range '({}, {})'",
-                        ));
+                        selected_row, start_row, end_row
-                    }
-                } else {
-                    // The selected cell must be on one of the corners of the selected range:
-                    if selected_row != start_row && selected_row != end_row {
-                        return Err(format!(
-                        "The selected cell is not in one of the corners. Row: '{selected_row}' and row range '({start_row}, {end_row})'"
                     ));
                 }
                 if selected_column != start_column && selected_column != end_column {
                     return Err(format!(
-                        "The selected cell is not in one of the corners. Column '{selected_column}' and column range '({start_column}, {end_column})'"
+                        "The selected cells is not in one of the corners. Column '{}' and column range '({}, {})'",
+                        selected_column, start_column, end_column
                     ));
                 }
-                }
                 view.range = [start_row, start_column, end_row, end_column];
             }
         }
@@ -210,17 +192,6 @@ impl UserModel {
                 return Ok(());
             };
         let [row_start, column_start, row_end, column_end] = range;
-        if ["ArrowUp", "ArrowDown"].contains(&key) && row_start == 1 && row_end == LAST_ROW {
-            // full column selected, nothing to do
-            return Ok(());
-        }
-        if ["ArrowRight", "ArrowLeft"].contains(&key)
-            && column_start == 1
-            && column_end == LAST_COLUMN
-        {
-            // full row selected, nothing to do
-            return Ok(());
-        }
 
         match key {
             "ArrowRight" => {
@@ -336,7 +307,7 @@ impl UserModel {
             return Err(format!("Invalid row: '{top_row}'"));
         }
         if self.model.workbook.worksheet(sheet).is_err() {
-            return Err(format!("Invalid worksheet index {sheet}"));
+            return Err(format!("Invalid worksheet index {}", sheet));
         }
         if let Ok(worksheet) = self.model.workbook.worksheet_mut(sheet) {
             if let Some(view) = worksheet.views.get_mut(&0) {
@@ -503,7 +474,7 @@ impl UserModel {
         // if the row is not fully visible we 'scroll' down until it is
         let mut height = 0.0;
         let mut row = view.top_row;
-        while row <= new_row + 1 && row <= LAST_ROW {
+        while row <= new_row + 1 {
             height += self.model.get_row_height(sheet, row)?;
             row += 1;
         }
@@ -713,94 +684,4 @@ impl UserModel {
 
         Ok(())
     }
-
-    /// User navigates to the edge in the given direction
-    pub fn on_navigate_to_edge_in_direction(
-        &mut self,
-        direction: NavigationDirection,
-    ) -> Result<(), String> {
-        let (sheet, window_height, window_width) =
-            if let Some(view) = self.model.workbook.views.get(&self.model.view_id) {
-                (view.sheet, view.window_height, view.window_width)
-            } else {
-                return Err("View not found".to_string());
-            };
-        let worksheet = match self.model.workbook.worksheet(sheet) {
-            Ok(s) => s,
-            Err(_) => return Err("Worksheet not found".to_string()),
-        };
-        let view = match worksheet.views.get(&self.model.view_id) {
-            Some(s) => s,
-            None => return Err("View not found".to_string()),
-        };
-        let row = view.row;
-        let column = view.column;
-        if !is_valid_row(row) || !is_valid_column_number(column) {
-            return Err("Invalid row or column".to_string());
-        }
-        let (new_row, new_column) =
-            worksheet.navigate_to_edge_in_direction(row, column, direction)?;
-        if !is_valid_row(new_row) || !is_valid_column_number(new_column) {
-            return Err("Invalid row or column after navigation".to_string());
-        }
-        if new_row == row && new_column == column {
-            return Ok(()); // No change in selection
-        }
-
-        let mut top_row = view.top_row;
-        let mut left_column = view.left_column;
-
-        match direction {
-            NavigationDirection::Left | NavigationDirection::Right => {
-                // If the new column is not fully visible we 'scroll' until it is
-                // We need to check two conditions:
-                // 1. new_column > view.left_column
-                // 2. right_column < new_column
-                if new_column < view.left_column {
-                    left_column = new_column;
-                } else {
-                    let mut c = new_column;
-                    let mut width = self.model.get_column_width(sheet, c)?;
-                    while c > 1 && width <= window_width as f64 {
-                        c -= 1;
-                        width += self.model.get_column_width(sheet, c)?;
-                    }
-                    if c > view.left_column {
-                        left_column = c;
-                    }
-                }
-            }
-            NavigationDirection::Up | NavigationDirection::Down => {
-                // If the new row is not fully visible we 'scroll' until it is
-                // We need to check two conditions:
-                // 1. new_row > view.top_row
-                // 2. bottom_row < new_row
-                if new_row < view.top_row {
-                    top_row = new_row;
-                } else {
-                    let mut r = new_row;
-                    let mut height = self.model.get_row_height(sheet, r)?;
-                    while r > 1 && height <= window_height as f64 {
-                        r -= 1;
-                        height += self.model.get_row_height(sheet, r)?;
-                    }
-                    if r > view.top_row {
-                        top_row = r;
-                    }
-                }
-            }
-        }
-
-        if let Ok(worksheet) = self.model.workbook.worksheet_mut(sheet) {
-            if let Some(view) = worksheet.views.get_mut(&self.model.view_id) {
-                view.row = new_row;
-                view.column = new_column;
-                view.range = [new_row, new_column, new_row, new_column];
-
-                view.top_row = top_row;
-                view.left_column = left_column;
-            }
-        }
-        Ok(())
-    }
 }

base/src/workbook.rs

@@ -1,6 +1,6 @@
 use std::vec::Vec;
 
-use crate::{expressions::parser::DefinedNameS, types::*};
+use crate::types::*;
 
 impl Workbook {
     pub fn get_worksheet_names(&self) -> Vec<String> {
@@ -29,7 +29,7 @@ impl Workbook {
     }
 
     /// Returns the a list of defined names in the workbook with their scope
-    pub fn get_defined_names_with_scope(&self) -> Vec<DefinedNameS> {
+    pub fn get_defined_names_with_scope(&self) -> Vec<(String, Option<u32>, String)> {
         let sheet_id_index: Vec<u32> = self.worksheets.iter().map(|s| s.sheet_id).collect();
 
         let defined_names = self

bindings/nodejs/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 edition = "2021"
 name = "ironcalc_nodejs"
-version = "0.6.0"
+version = "0.3.1"
 
 [lib]
 crate-type = ["cdylib"]
@@ -10,7 +10,7 @@ crate-type = ["cdylib"]
 # Default enable napi4 feature, see https://nodejs.org/api/n-api.html#node-api-version-matrix
 napi = { version = "2.12.2", default-features = false, features = ["napi4", "serde-json"] }
 napi-derive = "2.12.2"
-ironcalc = { path = "../../xlsx", version = "0.6.0" }
+ironcalc = { path = "../../xlsx", version = "0.3.0" }
 serde = { version = "1.0", features = ["derive"] }
 
 [build-dependencies]

bindings/nodejs/README.md

@@ -4,19 +4,14 @@
 Example usage:
 
 ```javascript
-import { Model } from '@ironcalc/nodejs';
+import { Model } from '@ironcalc/wasm';
  
 const model = new Model("Workbook1", "en", "UTC");
 
 model.setUserInput(0, 1, 1, "=1+1");
-
 const result1 = model.getFormattedCellValue(0, 1, 1);
-console.log('Cell value', result1); // "#ERROR"
 
-model.evaluate();
+console.log('Cell value', result1);
-
-const resultAfterEvaluate = model.getFormattedCellValue(0, 1, 1);
-console.log('Cell value', resultAfterEvaluate); // 2
 
 let result2 = model.getCellStyle(0, 1, 1);
 console.log('Cell style', result2);