UPDATE: Adds bincode to serializer/deserializer

.github/workflows/rust-build-test.yaml

@@ -16,9 +16,6 @@ jobs:
         steps:
             - uses: actions/checkout@v3
 
-            - name: Install wasm-pack
-              run: curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh
-
             - name: Build
               run: cargo build --release --verbose
 

.github/workflows/test-coverage.yaml

@@ -1,7 +1,6 @@
 name: Coverage
 
-on:
-  workflow_dispatch:
+on: [pull_request, push]
 
 jobs:
   coverage:
@@ -15,7 +14,7 @@ jobs:
       - name: Install cargo-llvm-cov
         uses: taiki-e/install-action@cargo-llvm-cov
       - name: Generate code coverage
-        run: cargo llvm-cov --all-features --workspace --exclude pyroncalc --exclude wasm --lcov --output-path lcov.info
+        run: cargo llvm-cov --all-features --workspace --lcov --output-path lcov.info
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@v3
         with:

.gitignore

@@ -1,2 +1 @@
 target/*
-.DS_Store

.readthedocs.yaml

@@ -1,32 +0,0 @@
-# .readthedocs.yaml
-# Read the Docs configuration file
-# See https://docs.readthedocs.io/en/stable/config-file/v2.html for details
-
-# Required
-version: 2
-
-# Set the OS, Python version and other tools you might need
-build:
-  os: ubuntu-22.04
-  tools:
-    python: "3.12"
-    # You can also specify other tool versions:
-    # nodejs: "19"
-    # rust: "1.64"
-    # golang: "1.19"
-
-# Build documentation in the "docs/" directory with Sphinx
-sphinx:
-  configuration: bindings/python/docs/conf.py
-
-# Optionally build your docs in additional formats such as PDF and ePub
-# formats:
-#    - pdf
-#    - epub
-
-# Optional but recommended, declare the Python requirements required
-# to build your documentation
-# See https://docs.readthedocs.io/en/stable/guides/reproducible-builds.html
-# python:
-#    install:
-#    - requirements: docs/requirements.txt

CHANGELOG.md

@@ -1,27 +0,0 @@
-# CHANGELOG
-
-## Unreleased
-
-### Added
-
-- New function UNICODE ([#128](https://github.com/ironcalc/IronCalc/pull/128))
-- New document server (Thanks Dani!)
-- New function FORMULATEXT
-
-### Fixed
-
-- Fixed several issues with pasting content
-- Fixed several issues with borders
-- Fixed bug where columns and rows could be resized to negative width and height, respectively
-
-## [0.2.0] - 2024-11-06 (The HN release)
-
-### Added
-
-- Rust crate ironcalc_base
-- Rust crate ironcalc
-- Minimal Python bindings (only Linux)
-- JavaScript bindings
-- React WebApp
-
-[0.2.0]: https://github.com/IronCalc/ironcalc/releases/tag/v0.2.0

CONTRIBUTING.md

@@ -1,73 +0,0 @@
-# Contributing to IronCalc
-
-Whether you are a seasoned developer or a rookie, welcome to IronCalc! 
-
-🎉 We appreciate your interest in contributing to our project.
-
-Before starting any work it is best if you get in touch to make sure your work is relevant.
-
-Please be patient, I am only one and this is a side project.
-
----
-
-## 🛠 Changes to the main repo
-
-If are comfortable working with GitHub and Git, the following steps should be straightforward. For more general information visit [GitHub Docs](https://docs.github.com/en) and [Git Documentation](https://git-scm.com/doc). 
-
-1. **Fork the repository**
-   Start by forking the repository to your own GitHub account. You can do this by clicking the "Fork" button on the top right of the repository page.
-
-2. **Clone the original repository**
-   Clone the original repository to your local machine:
-   ```bash
-   git clone https://github.com/ironcalc/IronCalc.git
-   cd IronCalc
-   ```
-
-
-3. **Add your fork as a remote**
-    Add your forked repository as a remote named fork:
-
-    ```bash
-    git remote add fork https://github.com/<your-username>/IronCalc.git
-    ```
-4. **Create a new branch**
-    Always create a new branch for your changes to keep your work isolated:
-
-    ```bash
-    git checkout -b your-feature-name
-    ```
-5. **Make changes**
-    Implement your changes, improvements, or bug fixes. Make sure to follow any coding style or project-specific guidelines.
-
-6. **Commit your changes**
-    Write clear and concise commit messages:
-
-    ```bash
-    git add .
-    git commit -m "Brief description of your changes"
-    ```
-7. **Push to your fork**
-    Push your branch to your forked repository:
-    ```bash
-    git push fork your-feature-name
-    ````
-
-8. **Create a Pull Request (PR)**
-   Follow the steps on the terminal or go to the orig IronCalc repository, and click on "New Pull Request."
-   Ensure your PR has a clear title and description explaining the purpose of your changes.
-
-Always start from the main branch in a clean state. `git pull` will generally get the lastest changes form the original repo.
-
-You should make sure that your changes are properly tested.
-
-# 🤝 Community and Support
-
-Feel free to reach out if you have questions or need help. Via GitHub, email, our discord server or bluesky.
-
-* Open an issue to report a bug or discuss a feature before implementing it.
-* Engage with the community to share ideas or seek guidance.
-
-Note that not all contributors need to be coding. To contribute testing, bug reports, typos, ideas of all kinds, you can just send us an email.
-
-Thank you for your contributions! 💪 Together, we can make IronCalc even better.

Cargo.toml

@@ -4,8 +4,6 @@ resolver = "2"
 members = [
   "base",
   "xlsx",
-  "bindings/wasm",
-  "bindings/python",
 ]
 
 exclude = [

Makefile

@@ -1,45 +1,33 @@
-.PHONY: lint
 lint:
 	cargo fmt -- --check
-	cargo clippy --all-targets --all-features -- -W clippy::unwrap_used -W clippy::expect_used -W clippy::panic -D warnings
-	cd webapp && npm install && npm run check
+	cargo clippy --all-targets --all-features
 
-.PHONY: format
 format:
 	cargo fmt
 
-.PHONY: tests
 tests: lint
 	cargo test
-	make remove-artifacts
-	# Regretabbly we need to build the wasm twice, once for the nodejs tests
-	# and a second one for the vitest.
-	cd bindings/wasm/ && wasm-pack build --target nodejs && node tests/test.mjs && make
-	cd webapp && npm run test
-	cd bindings/python && ./run_tests.sh && ./run_examples.sh
+	make remove-xlsx
 
-.PHONY: remove-artifacts
-remove-artifacts:
+remove-xlsx:
 	rm -f xlsx/hello-calc.xlsx
 	rm -f xlsx/hello-styles.xlsx
 	rm -f xlsx/widths-and-heights.xlsx
 
-.PHONY: clean
-clean: remove-artifacts
+clean: remove-xlsx
 	cargo clean
 	rm -r -f base/target
 	rm -r -f xlsx/target
-	rm -r -f bindings/python/target
-	rm -r -f bindings/wasm/targets
 	rm -f cargo-test-*
 	rm -f base/cargo-test-*
 	rm -f xlsx/cargo-test-*
 
-.PHONY: coverage
+
 coverage:
 	CARGO_INCREMENTAL=0 RUSTFLAGS='-C instrument-coverage' LLVM_PROFILE_FILE='cargo-test-%p-%m.profraw' cargo test
 	grcov . --binary-path ./target/debug/deps/ -s . -t html --branch --ignore-not-existing --ignore '../*' --ignore "/*" -o target/coverage/html
 
-.PHONY: docs
 docs:
 	cargo doc --no-deps
+
+.PHONY: lint format tests docs coverage all

README.md

@@ -123,12 +123,12 @@ See https://github.com/ironcalc
 
 An early preview of the technology running entirely in your browser:
 
-https://app.ironcalc.com
+https://playground.ironcalc.com
 
 
 # Collaborators needed!. Call to action
 
-We don't have a vibrant community just yet. This is the very stages of the project. But if you are passionate about code with high standards and no compromises, if you are looking for a project with high impact, if you are interested in a better, more open infrastructure for spreadsheets, whether you are a developer (rust, python, TypeScript, electron/tauri/anything else native app, React, you name it), a designer, an Excel power user who wants features, a business looking to integrate a MIT/Apache licensed spreadsheet in your own SaaS application join us!
+We don't have a vibrant community just yet. This is the very stages of the project. But if you are passionate about code with high standards and no compromises, if you are looking for a project with high impact, if you are interested in a better, more open infrastructure for spreadsheets, whether you are a developer (rust, python, TypeScript, electron/tauri/anything else native app, React, you name it), a designer (we need a logo desperately!), an Excel power user who wants features, a business looking to integrate a MIT/Apache licensed spreadsheet in your own SaaS application join us!
 
 The best place to start will be to join or [discord channel](https://discord.gg/zZYWfh3RHJ) or send us an email at hello@ironcalc.com.
 

assets/icon/ironcalc_icon.svg

@@ -1,8 +0,0 @@
-<svg width="600" height="600" viewBox="0 0 600 600" fill="none" xmlns="http://www.w3.org/2000/svg">
-<rect width="600" height="600" rx="20" fill="#F2994A"/>
-<path opacity="0.8" fill-rule="evenodd" clip-rule="evenodd" d="M348.98 100C348.98 166.034 322.748 229.362 276.055 276.055C268.163 283.947 259.796 291.255 251.021 297.95L251.021 500L348.98 500H251.021C251.021 433.966 277.252 370.637 323.945 323.945C331.837 316.053 340.204 308.745 348.98 302.05L348.98 100Z" fill="white"/>
-<path opacity="0.8" fill-rule="evenodd" clip-rule="evenodd" d="M251.021 100.068C251.003 140.096 235.094 178.481 206.788 206.787C178.466 235.109 140.053 251.02 100 251.02V348.979C154.873 348.979 207.877 330.866 251.021 297.95V100.068Z" fill="white"/>
-<path opacity="0.8" fill-rule="evenodd" clip-rule="evenodd" d="M348.98 499.882C349.011 459.872 364.918 421.507 393.213 393.213C421.534 364.891 459.947 348.98 500 348.98V251.02C445.128 251.02 392.123 269.134 348.98 302.05V499.882Z" fill="white"/>
-<path fill-rule="evenodd" clip-rule="evenodd" d="M276.055 276.055C322.748 229.362 348.98 166.034 348.98 100H251.021V297.95C259.796 291.255 268.163 283.947 276.055 276.055Z" fill="white"/>
-<path fill-rule="evenodd" clip-rule="evenodd" d="M348.98 302.05V499.895C348.98 499.93 348.98 499.965 348.98 500L251.021 500C251.021 499.946 251.02 499.891 251.021 499.837C251.064 433.862 277.291 370.599 323.945 323.945C331.837 316.053 340.204 308.745 348.98 302.05Z" fill="white"/>
-</svg>

base/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ironcalc_base"
-version = "0.2.0"
+version = "0.1.2"
 authors = ["Nicolás Hatcher <nicolas@theuniverse.today>"]
 edition = "2021"
 homepage = "https://www.ironcalc.com"
@@ -12,27 +12,19 @@ readme = "README.md"
 
 [dependencies]
 serde = { version = "1.0", features = ["derive"] }
+serde_json = "1.0"
+serde_repr = "0.1"
 ryu = "1.0"
 chrono = "0.4"
-chrono-tz = "0.10"
-regex = { version = "1.0", optional = true}
-regex-lite = { version = "0.1.6", optional = true}
+chrono-tz = "0.7.0"
+regex = "1.0"
 once_cell = "1.16.0"
-bitcode = "0.6.3"
-csv = "1.3.0"
-
-[features]
-default = ["use_regex_full"]
-use_regex_full = ["regex"]
-use_regex_lite = ["regex-lite"]
-
-[dev-dependencies]
-serde_json = "1.0"
+bincode = "=2.0.0-rc.3"
 
 [target.'cfg(target_arch = "wasm32")'.dependencies]
-js-sys = { version = "0.3.69" }
+js-sys = { version = "0.3.60" }
 
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]
-rand = "0.8.5"
+rand = "0.8.4"
 
 

base/examples/formulas_and_errors.rs

@@ -1,17 +1,17 @@
-use ironcalc_base::{types::CellType, Model};
+use ironcalc_base::{model::Model, types::CellType};
 
 fn main() -> Result<(), Box<dyn std::error::Error>> {
     let mut model = Model::new_empty("formulas-and-errors", "en", "UTC")?;
     // A1
-    model.set_user_input(0, 1, 1, "1".to_string())?;
+    model.set_user_input(0, 1, 1, "1".to_string());
     // A2
-    model.set_user_input(0, 2, 1, "2".to_string())?;
+    model.set_user_input(0, 2, 1, "2".to_string());
     // A3
-    model.set_user_input(0, 3, 1, "3".to_string())?;
+    model.set_user_input(0, 3, 1, "3".to_string());
     // B1
-    model.set_user_input(0, 1, 2, "=SUM(A1:A3)".to_string())?;
+    model.set_user_input(0, 1, 2, "=SUM(A1:A3)".to_string());
     // B2
-    model.set_user_input(0, 2, 2, "=B1/0".to_string())?;
+    model.set_user_input(0, 2, 2, "=B1/0".to_string());
     // Evaluate
     model.evaluate();
 

base/examples/hello_world.rs

@@ -1,13 +1,13 @@
-use ironcalc_base::{cell::CellValue, Model};
+use ironcalc_base::{cell::CellValue, model::Model};
 
 fn main() -> Result<(), Box<dyn std::error::Error>> {
     let mut model = Model::new_empty("hello-world", "en", "UTC")?;
     // A1
-    model.set_user_input(0, 1, 1, "Hello".to_string())?;
+    model.set_user_input(0, 1, 1, "Hello".to_string());
     // B1
-    model.set_user_input(0, 1, 2, "world!".to_string())?;
+    model.set_user_input(0, 1, 2, "world!".to_string());
     // C1
-    model.set_user_input(0, 1, 3, "=CONCAT(A1, \" \", B1".to_string())?;
+    model.set_user_input(0, 1, 3, "=CONCAT(A1, \" \", B1".to_string());
     // evaluates
     model.evaluate();
 

base/src/actions.rs

@@ -77,13 +77,14 @@ impl Model {
         let style = source_cell.get_style();
         // FIXME: we need some user_input getter instead of get_text
         let formula_or_value = self
-            .get_cell_formula(sheet, source_row, source_column)?
+            .cell_formula(sheet, source_row, source_column)?
             .unwrap_or_else(|| source_cell.get_text(&self.workbook.shared_strings, &self.language));
-        self.set_user_input(sheet, target_row, target_column, formula_or_value)?;
+        self.set_user_input(sheet, target_row, target_column, formula_or_value);
         self.workbook
             .worksheet_mut(sheet)?
-            .set_cell_style(target_row, target_column, style)?;
-        self.cell_clear_all(sheet, source_row, source_column)
+            .set_cell_style(target_row, target_column, style);
+        self.delete_cell(sheet, source_row, source_column)?;
+        Ok(())
     }
 
     /// Inserts one or more new columns into the model at the specified index.
@@ -156,11 +157,6 @@ impl Model {
             return Err("Please use insert columns instead".to_string());
         }
 
-        // first column being deleted
-        let column_start = column;
-        // last column being deleted
-        let column_end = column + column_count - 1;
-
         // Move cells
         let worksheet = &self.workbook.worksheet(sheet)?;
         let mut all_rows: Vec<i32> = worksheet.sheet_data.keys().copied().collect();
@@ -170,11 +166,11 @@ impl Model {
         for r in all_rows {
             let columns: Vec<i32> = self.get_columns_for_row(sheet, r, false)?;
             for col in columns {
-                if col >= column_start {
-                    if col > column_end {
+                if col >= column {
+                    if col >= column + column_count {
                         self.move_cell(sheet, r, col, r, col - column_count)?;
                     } else {
-                        self.cell_clear_all(sheet, r, col)?;
+                        self.delete_cell(sheet, r, col)?;
                     }
                 }
             }
@@ -188,64 +184,6 @@ impl Model {
                 delta: -column_count,
             }),
         );
-        let worksheet = &mut self.workbook.worksheet_mut(sheet)?;
-
-        // deletes all the column styles
-        let mut new_columns = Vec::new();
-        for col in worksheet.cols.iter_mut() {
-            // range under study
-            let min = col.min;
-            let max = col.max;
-            // In the diagram:
-            // |xxxxx| range we are studying [min, max]
-            // |*****| range we are deleting [column_start, column_end]
-            // we are going to split it in three big cases:
-            // ----------------|xxxxxxxx|-----------------
-            // -----|*****|------------------------------- Case A
-            // -------|**********|------------------------ Case B
-            // -------------|**************|-------------- Case C
-            // ------------------|****|------------------- Case D
-            // ---------------------|**********|---------- Case E
-            // -----------------------------|*****|------- Case F
-            if column_start < min {
-                if column_end < min {
-                    // Case A
-                    // We displace all columns
-                    let mut new_column = col.clone();
-                    new_column.min = min - column_count;
-                    new_column.max = max - column_count;
-                    new_columns.push(new_column);
-                } else if column_end < max {
-                    // Case B
-                    // We displace the end
-                    let mut new_column = col.clone();
-                    new_column.min = column_start;
-                    new_column.max = max - column_count;
-                    new_columns.push(new_column);
-                } else {
-                    // Case C
-                    // skip this, we are deleting the whole range
-                }
-            } else if column_start <= max {
-                if column_end <= max {
-                    // Case D
-                    // We displace the end
-                    let mut new_column = col.clone();
-                    new_column.max = max - column_count;
-                    new_columns.push(new_column);
-                } else {
-                    // Case E
-                    let mut new_column = col.clone();
-                    new_column.max = column_start - 1;
-                    new_columns.push(new_column);
-                }
-            } else {
-                // Case F
-                // No action required
-                new_columns.push(col.clone());
-            }
-        }
-        worksheet.cols = new_columns;
 
         Ok(())
     }
@@ -345,7 +283,7 @@ impl Model {
                     // remove all cells in row
                     // FIXME: We could just remove the entire row in one go
                     for column in columns {
-                        self.cell_clear_all(sheet, r, column)?;
+                        self.delete_cell(sheet, r, column)?;
                     }
                 }
             }

base/src/cell.rs

@@ -1,9 +1,12 @@
 use crate::{
     expressions::token::Error, language::Language, number_format::to_excel_precision_str, types::*,
 };
+use serde::{Deserialize, Serialize};
+use serde_json::json;
 
 /// A CellValue is the representation of the cell content.
-#[derive(Debug, PartialEq)]
+#[derive(Serialize, Deserialize, Debug, PartialEq)]
+#[serde(untagged)]
 pub enum CellValue {
     None,
     String(String),
@@ -11,6 +14,17 @@ pub enum CellValue {
     Boolean(bool),
 }
 
+impl CellValue {
+    pub fn to_json_str(&self) -> String {
+        match &self {
+            CellValue::None => "null".to_string(),
+            CellValue::String(s) => json!(s).to_string(),
+            CellValue::Number(f) => json!(f).to_string(),
+            CellValue::Boolean(b) => json!(b).to_string(),
+        }
+    }
+}
+
 impl From<f64> for CellValue {
     fn from(value: f64) -> Self {
         Self::Number(value)

base/src/constants.rs

@@ -2,12 +2,10 @@
 /// COLUMN_WIDTH and ROW_HEIGHT are pixel values
 /// A column width of Excel value `w` will result in `w * COLUMN_WIDTH_FACTOR` pixels
 /// Note that these constants are inlined
-pub(crate) const DEFAULT_COLUMN_WIDTH: f64 = 125.0;
-pub(crate) const DEFAULT_ROW_HEIGHT: f64 = 28.0;
+pub(crate) const DEFAULT_COLUMN_WIDTH: f64 = 100.0;
+pub(crate) const DEFAULT_ROW_HEIGHT: f64 = 21.0;
 pub(crate) const COLUMN_WIDTH_FACTOR: f64 = 12.0;
 pub(crate) const ROW_HEIGHT_FACTOR: f64 = 2.0;
-pub(crate) const DEFAULT_WINDOW_HEIGHT: i64 = 600;
-pub(crate) const DEFAULT_WINDOW_WIDTH: i64 = 800;
 
 pub(crate) const LAST_COLUMN: i32 = 16_384;
 pub(crate) const LAST_ROW: i32 = 1_048_576;

base/src/diffs.rs

@@ -26,7 +26,6 @@ pub struct SetCellValue {
 }
 
 impl Model {
-    #[allow(clippy::expect_used)]
     pub(crate) fn shift_cell_formula(
         &mut self,
         sheet: u32,
@@ -58,7 +57,6 @@ impl Model {
         }
     }
 
-    #[allow(clippy::expect_used)]
     pub fn forward_references(
         &mut self,
         source_area: &Area,

base/src/expressions/lexer/mod.rs

@@ -308,9 +308,9 @@ impl Lexer {
                                 return self.consume_range(None);
                             }
                             let name_upper = name.to_ascii_uppercase();
-                            if name_upper == self.language.booleans.r#true {
+                            if name_upper == self.language.booleans.true_value {
                                 return TokenType::Boolean(true);
-                            } else if name_upper == self.language.booleans.r#false {
+                            } else if name_upper == self.language.booleans.false_value {
                                 return TokenType::Boolean(false);
                             }
                             if self.mode == LexerMode::A1 {
@@ -660,8 +660,8 @@ impl Lexer {
     fn consume_error(&mut self) -> TokenType {
         let errors = &self.language.errors;
         let rest_of_formula: String = self.chars[self.position - 1..self.len].iter().collect();
-        if rest_of_formula.starts_with(&errors.r#ref) {
-            self.position += errors.r#ref.chars().count() - 1;
+        if rest_of_formula.starts_with(&errors.ref_value) {
+            self.position += errors.ref_value.chars().count() - 1;
             return TokenType::Error(Error::REF);
         } else if rest_of_formula.starts_with(&errors.name) {
             self.position += errors.name.chars().count() - 1;

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

@@ -6,11 +6,11 @@ use crate::{
         token::TokenType,
     },
     language::get_language,
-    locale::get_locale,
+    locale::get_locale_fix,
 };
 
 fn new_language_lexer(formula: &str, locale: &str, language: &str) -> Lexer {
-    let locale = get_locale(locale).unwrap();
+    let locale = get_locale_fix(locale).unwrap();
     let language = get_language(language).unwrap();
     Lexer::new(formula, LexerMode::A1, locale, language)
 }

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

@@ -1,5 +1,3 @@
-#![allow(clippy::expect_used)]
-
 use crate::expressions::{
     lexer::util::get_tokens,
     token::{OpCompare, OpSum, TokenType},
@@ -24,25 +22,6 @@ fn test_get_tokens() {
     assert_eq!(l.end, 10);
 }
 
-#[test]
-fn get_tokens_unicode() {
-    let formula = "'🇵🇭 Philippines'!A1";
-    let t = get_tokens(formula);
-    assert_eq!(t.len(), 1);
-
-    let expected = TokenType::Reference {
-        sheet: Some("🇵🇭 Philippines".to_string()),
-        row: 1,
-        column: 1,
-        absolute_column: false,
-        absolute_row: false,
-    };
-    let l = t.first().expect("expected token");
-    assert_eq!(l.token, expected);
-    assert_eq!(l.start, 0);
-    assert_eq!(l.end, 19);
-}
-
 #[test]
 fn test_simple_tokens() {
     assert_eq!(

base/src/expressions/lexer/util.rs

@@ -52,9 +52,7 @@ pub fn get_tokens(formula: &str) -> Vec<MarkedToken> {
     let mut lexer = Lexer::new(
         formula,
         LexerMode::A1,
-        #[allow(clippy::expect_used)]
         get_locale("en").expect(""),
-        #[allow(clippy::expect_used)]
         get_language("en").expect(""),
     );
     let mut start = lexer.get_position();

base/src/expressions/parser/mod.rs

@@ -49,15 +49,21 @@ pub mod stringify;
 pub mod walk;
 
 #[cfg(test)]
-mod tests;
+mod test;
+
+#[cfg(test)]
+mod test_ranges;
+
+#[cfg(test)]
+mod test_move_formula;
+#[cfg(test)]
+mod test_tables;
 
 pub(crate) fn parse_range(formula: &str) -> Result<(i32, i32, i32, i32), String> {
     let mut lexer = lexer::Lexer::new(
         formula,
         lexer::LexerMode::A1,
-        #[allow(clippy::expect_used)]
         get_locale("en").expect(""),
-        #[allow(clippy::expect_used)]
         get_language("en").expect(""),
     );
     if let TokenType::Range {
@@ -196,9 +202,7 @@ impl Parser {
         let lexer = lexer::Lexer::new(
             "",
             lexer::LexerMode::A1,
-            #[allow(clippy::expect_used)]
             get_locale("en").expect(""),
-            #[allow(clippy::expect_used)]
             get_language("en").expect(""),
         );
         Parser {
@@ -218,7 +222,7 @@ impl Parser {
 
     pub fn parse(&mut self, formula: &str, context: &Option<CellReferenceRC>) -> Node {
         self.lexer.set_formula(formula);
-        self.context.clone_from(context);
+        self.context = context.clone();
         self.parse_expr()
     }
 
@@ -514,6 +518,20 @@ impl Parser {
                 let mut absolute_row1 = left.absolute_row;
                 let mut absolute_row2 = right.absolute_row;
 
+                if self.lexer.is_a1_mode() {
+                    if !left.absolute_row {
+                        row1 -= context.row
+                    };
+                    if !left.absolute_column {
+                        column1 -= context.column
+                    };
+                    if !right.absolute_row {
+                        row2 -= context.row
+                    };
+                    if !right.absolute_column {
+                        column2 -= context.column
+                    };
+                }
                 if row1 > row2 {
                     (row2, row1) = (row1, row2);
                     (absolute_row2, absolute_row1) = (absolute_row1, absolute_row2);
@@ -522,22 +540,6 @@ impl Parser {
                     (column2, column1) = (column1, column2);
                     (absolute_column2, absolute_column1) = (absolute_column1, absolute_column2);
                 }
-
-                if self.lexer.is_a1_mode() {
-                    if !absolute_row1 {
-                        row1 -= context.row
-                    };
-                    if !absolute_column1 {
-                        column1 -= context.column
-                    };
-                    if !absolute_row2 {
-                        row2 -= context.row
-                    };
-                    if !absolute_column2 {
-                        column2 -= context.column
-                    };
-                }
-
                 match sheet_index {
                     Some(index) => Node::RangeKind {
                         sheet_name: sheet,
@@ -673,23 +675,14 @@ impl Parser {
                         }
                     };
                     // table-name => table
-                    let table = match self.tables.get(&table_name) {
-                        Some(t) => t,
-                        None => {
-                            let message = format!(
+                    let table = self.tables.get(&table_name).unwrap_or_else(|| {
+                        panic!(
                             "Table not found: '{table_name}' at '{}!{}{}'",
                             context.sheet,
-                                number_to_column(context.column)
-                                    .unwrap_or(format!("{}", context.column)),
+                            number_to_column(context.column).expect(""),
                             context.row
-                            );
-                            return Node::ParseErrorKind {
-                                formula: self.lexer.get_formula(),
-                                position: 0,
-                                message,
-                            };
-                        }
-                    };
+                        )
+                    });
                     let table_sheet_index = match self.get_sheet_index_by_name(&table.sheet_name) {
                         Some(i) => i,
                         None => {
@@ -708,7 +701,6 @@ impl Parser {
                     };
 
                     // context must be with tables.reference
-                    #[allow(clippy::expect_used)]
                     let (column_start, mut row_start, column_end, mut row_end) =
                         parse_range(&table.reference).expect("Failed parsing range");
 

base/src/expressions/parser/stringify.rs

@@ -456,65 +456,11 @@ fn stringify(
             };
             format!("{}{}{}", x, kind, y)
         }
-        OpPowerKind { left, right } => {
-            let x = match **left {
-                BooleanKind(_)
-                | NumberKind(_)
-                | StringKind(_)
-                | ReferenceKind { .. }
-                | RangeKind { .. }
-                | WrongReferenceKind { .. }
-                | VariableKind(_)
-                | WrongRangeKind { .. } => {
-                    stringify(left, context, displace_data, use_original_name)
-                }
-                OpRangeKind { .. }
-                | OpConcatenateKind { .. }
-                | OpProductKind { .. }
-                | OpPowerKind { .. }
-                | FunctionKind { .. }
-                | InvalidFunctionKind { .. }
-                | ArrayKind(_)
-                | UnaryKind { .. }
-                | ErrorKind(_)
-                | ParseErrorKind { .. }
-                | OpSumKind { .. }
-                | CompareKind { .. }
-                | EmptyArgKind => format!(
-                    "({})",
-                    stringify(left, context, displace_data, use_original_name)
-                ),
-            };
-            let y = match **right {
-                BooleanKind(_)
-                | NumberKind(_)
-                | StringKind(_)
-                | ReferenceKind { .. }
-                | RangeKind { .. }
-                | WrongReferenceKind { .. }
-                | VariableKind(_)
-                | WrongRangeKind { .. } => {
-                    stringify(right, context, displace_data, use_original_name)
-                }
-                OpRangeKind { .. }
-                | OpConcatenateKind { .. }
-                | OpProductKind { .. }
-                | OpPowerKind { .. }
-                | FunctionKind { .. }
-                | InvalidFunctionKind { .. }
-                | ArrayKind(_)
-                | UnaryKind { .. }
-                | ErrorKind(_)
-                | ParseErrorKind { .. }
-                | OpSumKind { .. }
-                | CompareKind { .. }
-                | EmptyArgKind => format!(
-                    "({})",
+        OpPowerKind { left, right } => format!(
+            "{}^{}",
+            stringify(left, context, displace_data, use_original_name),
             stringify(right, context, displace_data, use_original_name)
         ),
-            };
-            format!("{}^{}", x, y)
-        }
         InvalidFunctionKind { name, args } => {
             format_function(name, args, context, displace_data, use_original_name)
         }

base/src/expressions/parser/test.rs

@@ -1,13 +1,17 @@
-#![allow(clippy::panic)]
-
 use std::collections::HashMap;
 
 use crate::expressions::lexer::LexerMode;
-use crate::expressions::parser::stringify::{
-    to_rc_format, to_string, to_string_displaced, DisplaceData,
+use crate::expressions::parser::stringify::DisplaceData;
+
+use super::super::types::CellReferenceRC;
+use super::Parser;
+use super::{
+    super::parser::{
+        stringify::{to_rc_format, to_string},
+        Node,
+    },
+    stringify::to_string_displaced,
 };
-use crate::expressions::parser::{Node, Parser};
-use crate::expressions::types::CellReferenceRC;
 
 struct Formula<'a> {
     initial: &'a str,

base/src/expressions/parser/test_move_formula.rs

@@ -1,8 +1,10 @@
 use std::collections::HashMap;
 
 use crate::expressions::parser::move_formula::{move_formula, MoveContext};
-use crate::expressions::parser::Parser;
-use crate::expressions::types::{Area, CellReferenceRC};
+use crate::expressions::types::Area;
+
+use super::super::types::CellReferenceRC;
+use super::Parser;
 
 #[test]
 fn test_move_formula() {

base/src/expressions/parser/test_ranges.rs

@@ -2,9 +2,9 @@ use std::collections::HashMap;
 
 use crate::expressions::lexer::LexerMode;
 
-use crate::expressions::parser::stringify::{to_rc_format, to_string};
-use crate::expressions::parser::Parser;
-use crate::expressions::types::CellReferenceRC;
+use super::super::parser::stringify::{to_rc_format, to_string};
+use super::super::types::CellReferenceRC;
+use super::Parser;
 
 struct Formula<'a> {
     formula_a1: &'a str,

base/src/expressions/parser/test_tables.rs

@@ -6,8 +6,8 @@ use crate::expressions::parser::stringify::to_string;
 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;
+use super::super::types::CellReferenceRC;
+use super::Parser;
 
 fn create_test_table(
     table_name: &str,

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

@@ -1,6 +0,0 @@
-mod test_general;
-mod test_issue_155;
-mod test_move_formula;
-mod test_ranges;
-mod test_stringify;
-mod test_tables;

base/src/expressions/parser/tests/test_issue_155.rs

@@ -1,69 +0,0 @@
-#![allow(clippy::panic)]
-
-use std::collections::HashMap;
-
-use crate::expressions::parser::stringify::to_string;
-use crate::expressions::parser::Parser;
-use crate::expressions::types::CellReferenceRC;
-
-#[test]
-fn issue_155_parser() {
-    let worksheets = vec!["Sheet1".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
-
-    // Reference cell is Sheet1!A1
-    let cell_reference = CellReferenceRC {
-        sheet: "Sheet1".to_string(),
-        row: 2,
-        column: 2,
-    };
-    let t = parser.parse("A$1:A2", &Some(cell_reference.clone()));
-    assert_eq!(to_string(&t, &cell_reference), "A$1:A2");
-}
-
-#[test]
-fn issue_155_parser_case_2() {
-    let worksheets = vec!["Sheet1".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
-
-    // Reference cell is Sheet1!A1
-    let cell_reference = CellReferenceRC {
-        sheet: "Sheet1".to_string(),
-        row: 20,
-        column: 20,
-    };
-    let t = parser.parse("C$1:D2", &Some(cell_reference.clone()));
-    assert_eq!(to_string(&t, &cell_reference), "C$1:D2");
-}
-
-#[test]
-fn issue_155_parser_only_row() {
-    let worksheets = vec!["Sheet1".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
-
-    // Reference cell is Sheet1!A1
-    let cell_reference = CellReferenceRC {
-        sheet: "Sheet1".to_string(),
-        row: 20,
-        column: 20,
-    };
-    // This is tricky, I am not sure what to do in these cases
-    let t = parser.parse("A$2:B1", &Some(cell_reference.clone()));
-    assert_eq!(to_string(&t, &cell_reference), "A1:B$2");
-}
-
-#[test]
-fn issue_155_parser_only_column() {
-    let worksheets = vec!["Sheet1".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
-
-    // Reference cell is Sheet1!A1
-    let cell_reference = CellReferenceRC {
-        sheet: "Sheet1".to_string(),
-        row: 20,
-        column: 20,
-    };
-    // This is tricky, I am not sure what to do in these cases
-    let t = parser.parse("D1:$A3", &Some(cell_reference.clone()));
-    assert_eq!(to_string(&t, &cell_reference), "$A1:D3");
-}

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

@@ -1,34 +0,0 @@
-#![allow(clippy::panic)]
-
-use std::collections::HashMap;
-
-use crate::expressions::parser::stringify::to_string;
-use crate::expressions::parser::Parser;
-use crate::expressions::types::CellReferenceRC;
-
-#[test]
-fn exp_order() {
-    let worksheets = vec!["Sheet1".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
-
-    // Reference cell is Sheet1!A1
-    let cell_reference = CellReferenceRC {
-        sheet: "Sheet1".to_string(),
-        row: 1,
-        column: 1,
-    };
-    let t = parser.parse("(1 + 2)^3  + 4", &Some(cell_reference.clone()));
-    assert_eq!(to_string(&t, &cell_reference), "(1+2)^3+4");
-
-    let t = parser.parse("(C5 + 3)^R4", &Some(cell_reference.clone()));
-    assert_eq!(to_string(&t, &cell_reference), "(C5+3)^R4");
-
-    let t = parser.parse("(C5 + 3)^(R4*6)", &Some(cell_reference.clone()));
-    assert_eq!(to_string(&t, &cell_reference), "(C5+3)^(R4*6)");
-
-    let t = parser.parse("(C5)^(R4)", &Some(cell_reference.clone()));
-    assert_eq!(to_string(&t, &cell_reference), "C5^R4");
-
-    let t = parser.parse("(5)^(4)", &Some(cell_reference.clone()));
-    assert_eq!(to_string(&t, &cell_reference), "5^4");
-}

base/src/expressions/token.rs

@@ -1,7 +1,8 @@
 use std::fmt;
 
-use bitcode::{Decode, Encode};
+use bincode::{Decode, Encode};
 use serde::{Deserialize, Serialize};
+use serde_repr::{Deserialize_repr, Serialize_repr};
 
 use crate::language::Language;
 
@@ -80,7 +81,8 @@ impl fmt::Display for OpProduct {
 ///  * "#ERROR!" means there was an error processing the formula (for instance "=A1+")
 ///  * "#N/IMPL!" means the formula or feature in Excel but has not been implemented in IronCalc
 /// Note that they are serialized/deserialized by index
-#[derive(Serialize, Deserialize, Encode, Decode, Debug, PartialEq, Eq, Clone)]
+#[derive(Serialize_repr, Deserialize_repr, Decode, Encode, Debug, PartialEq, Eq, Clone)]
+#[repr(u8)]
 pub enum Error {
     REF,
     NAME,
@@ -118,7 +120,7 @@ impl Error {
     pub fn to_localized_error_string(&self, language: &Language) -> String {
         match self {
             Error::NULL => language.errors.null.to_string(),
-            Error::REF => language.errors.r#ref.to_string(),
+            Error::REF => language.errors.ref_value.to_string(),
             Error::NAME => language.errors.name.to_string(),
             Error::VALUE => language.errors.value.to_string(),
             Error::DIV => language.errors.div.to_string(),
@@ -135,7 +137,7 @@ impl Error {
 
 pub fn get_error_by_name(name: &str, language: &Language) -> Option<Error> {
     let errors = &language.errors;
-    if name == errors.r#ref {
+    if name == errors.ref_value {
         return Some(Error::REF);
     } else if name == errors.name {
         return Some(Error::NAME);

base/src/formatter/dates.rs

@@ -5,7 +5,6 @@ use chrono::NaiveDate;
 use crate::constants::EXCEL_DATE_BASE;
 
 pub fn from_excel_date(days: i64) -> NaiveDate {
-    #[allow(clippy::expect_used)]
     let dt = NaiveDate::from_ymd_opt(1900, 1, 1).expect("problem with chrono::NaiveDate");
     dt + Duration::days(days - 2)
 }

base/src/formatter/format.rs

@@ -245,9 +245,6 @@ 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);
-            }
             let tokens = &p.tokens;
             value = value * 100.0_f64.powi(p.percent) / (1000.0_f64.powi(p.comma));
             // p.precision is the number of significant digits _after_ the decimal point

base/src/formatter/lexer.rs

@@ -10,7 +10,6 @@ pub struct Lexer {
 pub enum Token {
     Color(i32),              // [Red] or [Color 23]
     Condition(Compare, f64), // [<=100] (Comparator, number)
-    Currency(char),          // [$€] ($ currency symbol)
     Literal(char), // €, $, (, ), /, :, +, -, ^, ', {, }, <, =, !, ~, > and space or scaped \X
     Spacer(char),  // *X
     Ghost(char),   // _X
@@ -275,15 +274,6 @@ impl Lexer {
                                 self.set_error("Failed to parse condition");
                                 Token::ILLEGAL
                             }
-                        } else if c == '$' {
-                            // currency
-                            self.read_next_char();
-                            if let Some(currency) = self.read_next_char() {
-                                self.read_next_char();
-                                return Token::Currency(currency);
-                            }
-                            self.set_error("Failed to parse currency");
-                            Token::ILLEGAL
                         } else {
                             // Color
                             if let Some(index) = self.consume_color() {

base/src/formatter/mod.rs

@@ -74,7 +74,6 @@ mod test;
 //
 // * Color [Red] or [Color 23] or [Color23]
 // * Conditions [<100]
-// * Currency [$€]
 // * Space _X when X is any given char
 // * A spacer of chars: *X where X is repeated as much as possible
 // * Literals: $, (, ), :, +, - and space

base/src/formatter/parser.rs

@@ -40,7 +40,6 @@ pub struct NumberPart {
     pub is_scientific: bool,
     pub scientific_minus: bool,
     pub exponent_digit_count: i32,
-    pub currency: Option<char>,
 }
 
 pub struct DatePart {
@@ -115,7 +114,6 @@ impl Parser {
         let mut exponent_digit_count = 0;
         let mut number = 'i';
         let mut index = 0;
-        let mut currency = None;
 
         while token != Token::EOF && token != Token::Separator {
             let next_token = self.lexer.next_token();
@@ -172,9 +170,6 @@ impl Parser {
                 Token::Condition(cmp, value) => {
                     condition = Some((cmp, value));
                 }
-                Token::Currency(c) => {
-                    currency = Some(c);
-                }
                 Token::QuestionMark => {
                     tokens.push(TextToken::Digit(Digit {
                         kind: '?',
@@ -296,7 +291,6 @@ impl Parser {
                 is_scientific,
                 scientific_minus,
                 exponent_digit_count,
-                currency,
             })
         }
     }

base/src/formatter/test/test_general.rs

@@ -76,14 +76,6 @@ fn test_color() {
     assert_eq!(format_number(3.1, "[blue]0.00", locale).color, Some(4));
 }
 
-#[test]
-fn dollar_euro() {
-    let locale = get_default_locale();
-    let format = "[$€]#,##0.00";
-    let t = format_number(3.1, format, locale);
-    assert_eq!(t.text, "€3.10");
-}
-
 #[test]
 fn test_parts() {
     let locale = get_default_locale();

base/src/functions/date_and_time.rs

@@ -1,6 +1,7 @@
-use chrono::DateTime;
 use chrono::Datelike;
 use chrono::Months;
+use chrono::NaiveDateTime;
+use chrono::TimeZone;
 use chrono::Timelike;
 
 use crate::expressions::types::CellReferenceIndex;
@@ -257,8 +258,8 @@ impl Model {
         // milliseconds since January 1, 1970 00:00:00 UTC.
         let milliseconds = get_milliseconds_since_epoch();
         let seconds = milliseconds / 1000;
-        let local_time = match DateTime::from_timestamp(seconds, 0) {
-            Some(dt) => dt.with_timezone(&self.tz),
+        let dt = match NaiveDateTime::from_timestamp_opt(seconds, 0) {
+            Some(dt) => dt,
             None => {
                 return CalcResult::Error {
                     error: Error::ERROR,
@@ -267,6 +268,7 @@ impl Model {
                 }
             }
         };
+        let local_time = self.tz.from_utc_datetime(&dt);
         // 693_594 is computed as:
         // NaiveDate::from_ymd(1900, 1, 1).num_days_from_ce() - 2
         // The 2 days offset is because of Excel 1900 bug
@@ -287,8 +289,8 @@ impl Model {
         // milliseconds since January 1, 1970 00:00:00 UTC.
         let milliseconds = get_milliseconds_since_epoch();
         let seconds = milliseconds / 1000;
-        let local_time = match DateTime::from_timestamp(seconds, 0) {
-            Some(dt) => dt.with_timezone(&self.tz),
+        let dt = match NaiveDateTime::from_timestamp_opt(seconds, 0) {
+            Some(dt) => dt,
             None => {
                 return CalcResult::Error {
                     error: Error::ERROR,
@@ -297,6 +299,7 @@ impl Model {
                 }
             }
         };
+        let local_time = self.tz.from_utc_datetime(&dt);
         // 693_594 is computed as:
         // NaiveDate::from_ymd(1900, 1, 1).num_days_from_ce() - 2
         // The 2 days offset is because of Excel 1900 bug

base/src/functions/engineering/transcendental/test_bessel.rs

@@ -12,7 +12,7 @@ const EPS_LOW: f64 = 1e-6;
 
 // Known values computed with Arb via Nemo.jl in Julia
 // You can also use Mathematica
-// But please do not use Excel or any other software without arbitrary precision
+/// But please do not use Excel or any other software without arbitrary precision
 
 fn numbers_are_close(a: f64, b: f64) -> bool {
     if a == b {

base/src/functions/financial.rs

@@ -89,9 +89,6 @@ fn compute_future_value(
     if rate == 0.0 {
         return Ok(-pv - pmt * nper);
     }
-    if rate == -1.0 && nper < 0.0 {
-        return Err((Error::DIV, "Divide by zero".to_string()));
-    }
 
     let rate_nper = (1.0 + rate).powf(nper);
     let fv = if period_start {
@@ -197,24 +194,16 @@ fn compute_ppmt(
 // In these formulas the payment (pmt) is normally negative
 
 impl Model {
-    fn get_array_of_numbers_generic(
+    // FIXME: These three functions (get_array_of_numbers..) need to be refactored
+    // They are really similar expect for small issues
+    fn get_array_of_numbers(
         &mut self,
         arg: &Node,
         cell: &CellReferenceIndex,
-        accept_number_node: bool,
-        handle_empty_cell: impl Fn() -> Result<Option<f64>, CalcResult>,
-        handle_non_number_cell: impl Fn() -> Result<Option<f64>, CalcResult>,
     ) -> Result<Vec<f64>, CalcResult> {
         let mut values = Vec::new();
         match self.evaluate_node_in_context(arg, *cell) {
-            CalcResult::Number(value) if accept_number_node => values.push(value),
-            CalcResult::Number(_) => {
-                return Err(CalcResult::new_error(
-                    Error::VALUE,
-                    *cell,
-                    "Expected range of numbers".to_string(),
-                ));
-            }
+            CalcResult::Number(value) => values.push(value),
             CalcResult::Range { left, right } => {
                 if left.sheet != right.sheet {
                     return Err(CalcResult::new_error(
@@ -223,7 +212,6 @@ impl Model {
                         "Ranges are in different sheets".to_string(),
                     ));
                 }
-                let sheet = left.sheet;
                 let row1 = left.row;
                 let mut row2 = right.row;
                 let column1 = left.column;
@@ -231,46 +219,32 @@ impl Model {
                 if row1 == 1 && row2 == LAST_ROW {
                     row2 = self
                         .workbook
-                        .worksheet(sheet)
-                        .map_err(|_| {
-                            CalcResult::new_error(
-                                Error::ERROR,
-                                *cell,
-                                format!("Invalid worksheet index: '{}'", sheet),
-                            )
-                        })?
+                        .worksheet(left.sheet)
+                        .expect("Sheet expected during evaluation.")
                         .dimension()
                         .max_row;
                 }
                 if column1 == 1 && column2 == LAST_COLUMN {
                     column2 = self
                         .workbook
-                        .worksheet(sheet)
-                        .map_err(|_| {
-                            CalcResult::new_error(
-                                Error::ERROR,
-                                *cell,
-                                format!("Invalid worksheet index: '{}'", sheet),
-                            )
-                        })?
+                        .worksheet(left.sheet)
+                        .expect("Sheet expected during evaluation.")
                         .dimension()
                         .max_column;
                 }
-                for row in row1..=row2 {
-                    for column in column1..=column2 {
-                        let cell_ref = CellReferenceIndex { sheet, row, column };
-                        match self.evaluate_cell(cell_ref) {
-                            CalcResult::Number(value) => values.push(value),
+                for row in row1..row2 + 1 {
+                    for column in column1..(column2 + 1) {
+                        match self.evaluate_cell(CellReferenceIndex {
+                            sheet: left.sheet,
+                            row,
+                            column,
+                        }) {
+                            CalcResult::Number(value) => {
+                                values.push(value);
+                            }
                             error @ CalcResult::Error { .. } => return Err(error),
-                            CalcResult::EmptyCell => {
-                                if let Some(value) = handle_empty_cell()? {
-                                    values.push(value);
-                                }
-                            }
                             _ => {
-                                if let Some(value) = handle_non_number_cell()? {
-                                    values.push(value);
-                                }
+                                // We ignore booleans and strings
                             }
                         }
                     }
@@ -278,51 +252,88 @@ impl Model {
             }
             error @ CalcResult::Error { .. } => return Err(error),
             _ => {
-                handle_non_number_cell()?;
-            }
+                // We ignore booleans and strings
             }
+        };
         Ok(values)
     }
 
-    fn get_array_of_numbers(
-        &mut self,
-        arg: &Node,
-        cell: &CellReferenceIndex,
-    ) -> Result<Vec<f64>, CalcResult> {
-        self.get_array_of_numbers_generic(
-            arg,
-            cell,
-            true,        // accept_number_node
-            || Ok(None), // Ignore empty cells
-            || Ok(None), // Ignore non-number cells
-        )
-    }
-
     fn get_array_of_numbers_xpnv(
         &mut self,
         arg: &Node,
         cell: &CellReferenceIndex,
         error: Error,
     ) -> Result<Vec<f64>, CalcResult> {
-        self.get_array_of_numbers_generic(
-            arg,
-            cell,
-            true, // accept_number_node
-            || {
-                Err(CalcResult::new_error(
+        let mut values = Vec::new();
+        match self.evaluate_node_in_context(arg, *cell) {
+            CalcResult::Number(value) => values.push(value),
+            CalcResult::Range { left, right } => {
+                if left.sheet != right.sheet {
+                    return Err(CalcResult::new_error(
+                        Error::VALUE,
+                        *cell,
+                        "Ranges are in different sheets".to_string(),
+                    ));
+                }
+                let row1 = left.row;
+                let mut row2 = right.row;
+                let column1 = left.column;
+                let mut column2 = right.column;
+                if row1 == 1 && row2 == LAST_ROW {
+                    row2 = self
+                        .workbook
+                        .worksheet(left.sheet)
+                        .expect("Sheet expected during evaluation.")
+                        .dimension()
+                        .max_row;
+                }
+                if column1 == 1 && column2 == LAST_COLUMN {
+                    column2 = self
+                        .workbook
+                        .worksheet(left.sheet)
+                        .expect("Sheet expected during evaluation.")
+                        .dimension()
+                        .max_column;
+                }
+                for row in row1..row2 + 1 {
+                    for column in column1..(column2 + 1) {
+                        match self.evaluate_cell(CellReferenceIndex {
+                            sheet: left.sheet,
+                            row,
+                            column,
+                        }) {
+                            CalcResult::Number(value) => {
+                                values.push(value);
+                            }
+                            error @ CalcResult::Error { .. } => return Err(error),
+                            CalcResult::EmptyCell => {
+                                return Err(CalcResult::new_error(
                                     Error::NUM,
                                     *cell,
                                     "Expected number".to_string(),
-                ))
-            },
-            || {
-                Err(CalcResult::new_error(
-                    error.clone(),
+                                ));
+                            }
+                            _ => {
+                                return Err(CalcResult::new_error(
+                                    error,
                                     *cell,
                                     "Expected number".to_string(),
-                ))
-            },
-        )
+                                ));
+                            }
+                        }
+                    }
+                }
+            }
+            error @ CalcResult::Error { .. } => return Err(error),
+            _ => {
+                return Err(CalcResult::new_error(
+                    error,
+                    *cell,
+                    "Expected number".to_string(),
+                ));
+            }
+        };
+        Ok(values)
     }
 
     fn get_array_of_numbers_xirr(
@@ -330,19 +341,69 @@ impl Model {
         arg: &Node,
         cell: &CellReferenceIndex,
     ) -> Result<Vec<f64>, CalcResult> {
-        self.get_array_of_numbers_generic(
-            arg,
-            cell,
-            false,            // Do not accept a single number node
-            || Ok(Some(0.0)), // Treat empty cells as zero
-            || {
-                Err(CalcResult::new_error(
+        let mut values = Vec::new();
+        match self.evaluate_node_in_context(arg, *cell) {
+            CalcResult::Range { left, right } => {
+                if left.sheet != right.sheet {
+                    return Err(CalcResult::new_error(
+                        Error::VALUE,
+                        *cell,
+                        "Ranges are in different sheets".to_string(),
+                    ));
+                }
+                let row1 = left.row;
+                let mut row2 = right.row;
+                let column1 = left.column;
+                let mut column2 = right.column;
+                if row1 == 1 && row2 == LAST_ROW {
+                    row2 = self
+                        .workbook
+                        .worksheet(left.sheet)
+                        .expect("Sheet expected during evaluation.")
+                        .dimension()
+                        .max_row;
+                }
+                if column1 == 1 && column2 == LAST_COLUMN {
+                    column2 = self
+                        .workbook
+                        .worksheet(left.sheet)
+                        .expect("Sheet expected during evaluation.")
+                        .dimension()
+                        .max_column;
+                }
+                for row in row1..row2 + 1 {
+                    for column in column1..(column2 + 1) {
+                        match self.evaluate_cell(CellReferenceIndex {
+                            sheet: left.sheet,
+                            row,
+                            column,
+                        }) {
+                            CalcResult::Number(value) => {
+                                values.push(value);
+                            }
+                            error @ CalcResult::Error { .. } => return Err(error),
+                            CalcResult::EmptyCell => values.push(0.0),
+                            _ => {
+                                return Err(CalcResult::new_error(
                                     Error::VALUE,
                                     *cell,
                                     "Expected number".to_string(),
-                ))
-            },
-        )
+                                ));
+                            }
+                        }
+                    }
+                }
+            }
+            error @ CalcResult::Error { .. } => return Err(error),
+            _ => {
+                return Err(CalcResult::new_error(
+                    Error::VALUE,
+                    *cell,
+                    "Expected number".to_string(),
+                ));
+            }
+        };
+        Ok(values)
     }
 
     /// PMT(rate, nper, pv, [fv], [type])
@@ -801,28 +862,20 @@ impl Model {
                     let column1 = left.column;
                     let mut column2 = right.column;
                     if row1 == 1 && row2 == LAST_ROW {
-                        row2 = match self.workbook.worksheet(left.sheet) {
-                            Ok(s) => s.dimension().max_row,
-                            Err(_) => {
-                                return CalcResult::new_error(
-                                    Error::ERROR,
-                                    cell,
-                                    format!("Invalid worksheet index: '{}'", left.sheet),
-                                );
-                            }
-                        };
+                        row2 = self
+                            .workbook
+                            .worksheet(left.sheet)
+                            .expect("Sheet expected during evaluation.")
+                            .dimension()
+                            .max_row;
                     }
                     if column1 == 1 && column2 == LAST_COLUMN {
-                        column2 = match self.workbook.worksheet(left.sheet) {
-                            Ok(s) => s.dimension().max_column,
-                            Err(_) => {
-                                return CalcResult::new_error(
-                                    Error::ERROR,
-                                    cell,
-                                    format!("Invalid worksheet index: '{}'", left.sheet),
-                                );
-                            }
-                        };
+                        column2 = self
+                            .workbook
+                            .worksheet(left.sheet)
+                            .expect("Sheet expected during evaluation.")
+                            .dimension()
+                            .max_column;
                     }
                     for row in row1..row2 + 1 {
                         for column in column1..(column2 + 1) {
@@ -1340,21 +1393,21 @@ impl Model {
         CalcResult::Number(result)
     }
 
-    // This next three functions deal with Treasure Bills or T-Bills for short
-    // They are zero-coupon that mature in one year or less.
-    //  Definitions:
-    //    $r$ be the discount rate
-    //    $v$ the face value of the Bill
-    //    $p$ the price of the Bill
-    //    $d_m$ is the number of days from the settlement to maturity
-    // Then:
-    //   $$ p = v \times\left(1-\frac{d_m}{r}\right) $$
-    // If d_m is less than 183 days the he Bond Equivalent Yield (BEY, here $y$) is given by:
-    // $$ y = \frac{F - B}{M}\times \frac{365}{d_m} = \frac{365\times r}{360-r\times d_m}
-    // If d_m>= 183 days things are a bit more complicated.
-    // Let $d_e = d_m - 365/2$ if $d_m <= 365$ or $d_e = 183$ if $d_m = 366$.
-    // $$ v = p\times \left(1+\frac{y}{2}\right)\left(1+d_e\times\frac{y}{365}\right) $$
-    // Together with the previous relation of $p$ and $v$ gives us a quadratic equation for $y$.
+    /// This next three functions deal with Treasure Bills or T-Bills for short
+    /// They are zero-coupon that mature in one year or less.
+    ///  Definitions:
+    ///    $r$ be the discount rate
+    ///    $v$ the face value of the Bill
+    ///    $p$ the price of the Bill
+    ///    $d_m$ is the number of days from the settlement to maturity
+    /// Then:
+    ///   $$ p = v \times\left(1-\frac{d_m}{r}\right) $$
+    /// If d_m is less than 183 days the he Bond Equivalent Yield (BEY, here $y$) is given by:
+    /// $$ y = \frac{F - B}{M}\times \frac{365}{d_m} = \frac{365\times r}{360-r\times d_m}
+    /// If d_m>= 183 days things are a bit more complicated.
+    /// Let $d_e = d_m - 365/2$ if $d_m <= 365$ or $d_e = 183$ if $d_m = 366$.
+    /// $$ v = p\times \left(1+\frac{y}{2}\right)\left(1+d_e\times\frac{y}{365}\right) $$
+    /// Together with the previous relation of $p$ and $v$ gives us a quadratic equation for $y$.
 
     // TBILLEQ(settlement, maturity, discount)
     pub(crate) fn fn_tbilleq(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {

base/src/functions/information.rs

@@ -165,8 +165,7 @@ impl Model {
                     message: "argument must be a reference to a single cell".to_string(),
                 };
             }
-            let is_formula = if let Ok(f) = self.get_cell_formula(left.sheet, left.row, left.column)
-            {
+            let is_formula = if let Ok(f) = self.cell_formula(left.sheet, left.row, left.column) {
                 f.is_some()
             } else {
                 false

base/src/functions/logical.rs

@@ -136,9 +136,6 @@ impl Model {
     }
 
     pub(crate) fn fn_or(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
-        if args.is_empty() {
-            return CalcResult::new_args_number_error(cell);
-        }
         let mut result = false;
         for arg in args {
             match self.evaluate_node_in_context(arg, cell) {

base/src/functions/lookup_and_reference.rs

@@ -838,43 +838,4 @@ impl Model {
         };
         CalcResult::Range { left, right }
     }
-
-    pub(crate) fn fn_formulatext(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
-        if args.len() != 1 {
-            return CalcResult::new_args_number_error(cell);
-        }
-        if let CalcResult::Range { left, right } = self.evaluate_node_with_reference(&args[0], cell)
-        {
-            if left.sheet != right.sheet {
-                return CalcResult::Error {
-                    error: Error::ERROR,
-                    origin: cell,
-                    message: "3D ranges not supported".to_string(),
-                };
-            }
-            if left.row != right.row || left.column != right.column {
-                // FIXME: Implicit intersection or dynamic arrays
-                return CalcResult::Error {
-                    error: Error::ERROR,
-                    origin: cell,
-                    message: "argument must be a reference to a single cell".to_string(),
-                };
-            }
-            if let Ok(Some(f)) = self.get_cell_formula(left.sheet, left.row, left.column) {
-                CalcResult::String(f)
-            } else {
-                CalcResult::Error {
-                    error: Error::NA,
-                    origin: cell,
-                    message: "Reference does not have a formula".to_string(),
-                }
-            }
-        } else {
-            CalcResult::Error {
-                error: Error::ERROR,
-                origin: cell,
-                message: "Argument must be a reference".to_string(),
-            }
-        }
-    }
 }

base/src/functions/mathematical.rs

@@ -128,28 +128,20 @@ impl Model {
                     let column1 = left.column;
                     let mut column2 = right.column;
                     if row1 == 1 && row2 == LAST_ROW {
-                        row2 = match self.workbook.worksheet(left.sheet) {
-                            Ok(s) => s.dimension().max_row,
-                            Err(_) => {
-                                return CalcResult::new_error(
-                                    Error::ERROR,
-                                    cell,
-                                    format!("Invalid worksheet index: '{}'", left.sheet),
-                                );
-                            }
-                        };
+                        row2 = self
+                            .workbook
+                            .worksheet(left.sheet)
+                            .expect("Sheet expected during evaluation.")
+                            .dimension()
+                            .max_row;
                     }
                     if column1 == 1 && column2 == LAST_COLUMN {
-                        column2 = match self.workbook.worksheet(left.sheet) {
-                            Ok(s) => s.dimension().max_column,
-                            Err(_) => {
-                                return CalcResult::new_error(
-                                    Error::ERROR,
-                                    cell,
-                                    format!("Invalid worksheet index: '{}'", left.sheet),
-                                );
-                            }
-                        };
+                        column2 = self
+                            .workbook
+                            .worksheet(left.sheet)
+                            .expect("Sheet expected during evaluation.")
+                            .dimension()
+                            .max_column;
                     }
                     for row in row1..row2 + 1 {
                         for column in column1..(column2 + 1) {
@@ -203,28 +195,20 @@ impl Model {
                     let column1 = left.column;
                     let mut column2 = right.column;
                     if row1 == 1 && row2 == LAST_ROW {
-                        row2 = match self.workbook.worksheet(left.sheet) {
-                            Ok(s) => s.dimension().max_row,
-                            Err(_) => {
-                                return CalcResult::new_error(
-                                    Error::ERROR,
-                                    cell,
-                                    format!("Invalid worksheet index: '{}'", left.sheet),
-                                );
-                            }
-                        };
+                        row2 = self
+                            .workbook
+                            .worksheet(left.sheet)
+                            .expect("Sheet expected during evaluation.")
+                            .dimension()
+                            .max_row;
                     }
                     if column1 == 1 && column2 == LAST_COLUMN {
-                        column2 = match self.workbook.worksheet(left.sheet) {
-                            Ok(s) => s.dimension().max_column,
-                            Err(_) => {
-                                return CalcResult::new_error(
-                                    Error::ERROR,
-                                    cell,
-                                    format!("Invalid worksheet index: '{}'", left.sheet),
-                                );
-                            }
-                        };
+                        column2 = self
+                            .workbook
+                            .worksheet(left.sheet)
+                            .expect("Sheet expected during evaluation.")
+                            .dimension()
+                            .max_column;
                     }
                     for row in row1..row2 + 1 {
                         for column in column1..(column2 + 1) {

base/src/functions/mod.rs

@@ -1,5 +1,4 @@
 use core::fmt;
-use std::array::IntoIter;
 
 use crate::{
     calc_result::CalcResult,
@@ -75,7 +74,6 @@ pub enum Function {
 
     // Information
     ErrorType,
-    Formulatext,
     Isblank,
     Iserr,
     Iserror,
@@ -123,7 +121,6 @@ pub enum Function {
     Textbefore,
     Textjoin,
     Trim,
-    Unicode,
     Upper,
     Value,
     Valuetotext,
@@ -140,7 +137,6 @@ pub enum Function {
     Countifs,
     Maxifs,
     Minifs,
-    Geomean,
 
     // Date and time
     Date,
@@ -248,209 +244,6 @@ pub enum Function {
     Subtotal,
 }
 
-impl Function {
-    pub fn into_iter() -> IntoIter<Function, 195> {
-        [
-            Function::And,
-            Function::False,
-            Function::If,
-            Function::Iferror,
-            Function::Ifna,
-            Function::Ifs,
-            Function::Not,
-            Function::Or,
-            Function::Switch,
-            Function::True,
-            Function::Xor,
-            Function::Sin,
-            Function::Cos,
-            Function::Tan,
-            Function::Asin,
-            Function::Acos,
-            Function::Atan,
-            Function::Sinh,
-            Function::Cosh,
-            Function::Tanh,
-            Function::Asinh,
-            Function::Acosh,
-            Function::Atanh,
-            Function::Abs,
-            Function::Pi,
-            Function::Sqrt,
-            Function::Sqrtpi,
-            Function::Atan2,
-            Function::Power,
-            Function::Max,
-            Function::Min,
-            Function::Product,
-            Function::Rand,
-            Function::Randbetween,
-            Function::Round,
-            Function::Rounddown,
-            Function::Roundup,
-            Function::Sum,
-            Function::Sumif,
-            Function::Sumifs,
-            Function::Choose,
-            Function::Column,
-            Function::Columns,
-            Function::Index,
-            Function::Indirect,
-            Function::Hlookup,
-            Function::Lookup,
-            Function::Match,
-            Function::Offset,
-            Function::Row,
-            Function::Rows,
-            Function::Vlookup,
-            Function::Xlookup,
-            Function::Concatenate,
-            Function::Exact,
-            Function::Value,
-            Function::T,
-            Function::Valuetotext,
-            Function::Concat,
-            Function::Find,
-            Function::Left,
-            Function::Len,
-            Function::Lower,
-            Function::Mid,
-            Function::Right,
-            Function::Search,
-            Function::Text,
-            Function::Trim,
-            Function::Unicode,
-            Function::Upper,
-            Function::Isnumber,
-            Function::Isnontext,
-            Function::Istext,
-            Function::Islogical,
-            Function::Isblank,
-            Function::Iserr,
-            Function::Iserror,
-            Function::Isna,
-            Function::Na,
-            Function::Isref,
-            Function::Isodd,
-            Function::Iseven,
-            Function::ErrorType,
-            Function::Formulatext,
-            Function::Isformula,
-            Function::Type,
-            Function::Sheet,
-            Function::Average,
-            Function::Averagea,
-            Function::Averageif,
-            Function::Averageifs,
-            Function::Count,
-            Function::Counta,
-            Function::Countblank,
-            Function::Countif,
-            Function::Countifs,
-            Function::Maxifs,
-            Function::Minifs,
-            Function::Geomean,
-            Function::Year,
-            Function::Day,
-            Function::Month,
-            Function::Eomonth,
-            Function::Date,
-            Function::Edate,
-            Function::Today,
-            Function::Now,
-            Function::Pmt,
-            Function::Pv,
-            Function::Rate,
-            Function::Nper,
-            Function::Fv,
-            Function::Ppmt,
-            Function::Ipmt,
-            Function::Npv,
-            Function::Mirr,
-            Function::Irr,
-            Function::Xirr,
-            Function::Xnpv,
-            Function::Rept,
-            Function::Textafter,
-            Function::Textbefore,
-            Function::Textjoin,
-            Function::Substitute,
-            Function::Ispmt,
-            Function::Rri,
-            Function::Sln,
-            Function::Syd,
-            Function::Nominal,
-            Function::Effect,
-            Function::Pduration,
-            Function::Tbillyield,
-            Function::Tbillprice,
-            Function::Tbilleq,
-            Function::Dollarde,
-            Function::Dollarfr,
-            Function::Ddb,
-            Function::Db,
-            Function::Cumprinc,
-            Function::Cumipmt,
-            Function::Besseli,
-            Function::Besselj,
-            Function::Besselk,
-            Function::Bessely,
-            Function::Erf,
-            Function::ErfPrecise,
-            Function::Erfc,
-            Function::ErfcPrecise,
-            Function::Bin2dec,
-            Function::Bin2hex,
-            Function::Bin2oct,
-            Function::Dec2Bin,
-            Function::Dec2hex,
-            Function::Dec2oct,
-            Function::Hex2bin,
-            Function::Hex2dec,
-            Function::Hex2oct,
-            Function::Oct2bin,
-            Function::Oct2dec,
-            Function::Oct2hex,
-            Function::Bitand,
-            Function::Bitlshift,
-            Function::Bitor,
-            Function::Bitrshift,
-            Function::Bitxor,
-            Function::Complex,
-            Function::Imabs,
-            Function::Imaginary,
-            Function::Imargument,
-            Function::Imconjugate,
-            Function::Imcos,
-            Function::Imcosh,
-            Function::Imcot,
-            Function::Imcsc,
-            Function::Imcsch,
-            Function::Imdiv,
-            Function::Imexp,
-            Function::Imln,
-            Function::Imlog10,
-            Function::Imlog2,
-            Function::Impower,
-            Function::Improduct,
-            Function::Imreal,
-            Function::Imsec,
-            Function::Imsech,
-            Function::Imsin,
-            Function::Imsinh,
-            Function::Imsqrt,
-            Function::Imsub,
-            Function::Imsum,
-            Function::Imtan,
-            Function::Convert,
-            Function::Delta,
-            Function::Gestep,
-            Function::Subtotal,
-        ]
-        .into_iter()
-    }
-}
-
 impl Function {
     /// Some functions in Excel like CONCAT are stringified as `_xlfn.CONCAT`.
     pub fn to_xlsx_string(&self) -> String {
@@ -466,7 +259,6 @@ impl Function {
             Function::Textbefore => "_xlfn.TEXTBEFORE".to_string(),
             Function::Textafter => "_xlfn.TEXTAFTER".to_string(),
             Function::Textjoin => "_xlfn.TEXTJOIN".to_string(),
-            Function::Unicode => "_xlfn.UNICODE".to_string(),
             Function::Rri => "_xlfn.RRI".to_string(),
             Function::Pduration => "_xlfn.PDURATION".to_string(),
             Function::Bitand => "_xlfn.BITAND".to_string(),
@@ -486,7 +278,6 @@ impl Function {
             Function::Valuetotext => "_xlfn.VALUETOTEXT".to_string(),
             Function::Isformula => "_xlfn.ISFORMULA".to_string(),
             Function::Sheet => "_xlfn.SHEET".to_string(),
-            Function::Formulatext => "_xlfn.FORMULATEXT".to_string(),
             _ => self.to_string(),
         }
     }
@@ -575,7 +366,6 @@ impl Function {
             "SEARCH" => Some(Function::Search),
             "TEXT" => Some(Function::Text),
             "TRIM" => Some(Function::Trim),
-            "UNICODE" | "_XLFN.UNICODE" => Some(Function::Unicode),
             "UPPER" => Some(Function::Upper),
 
             "REPT" => Some(Function::Rept),
@@ -597,7 +387,6 @@ impl Function {
             "ISODD" => Some(Function::Isodd),
             "ISEVEN" => Some(Function::Iseven),
             "ERROR.TYPE" => Some(Function::ErrorType),
-            "FORMULATEXT" | "_XLFN.FORMULATEXT" => Some(Function::Formulatext),
             "ISFORMULA" | "_XLFN.ISFORMULA" => Some(Function::Isformula),
             "TYPE" => Some(Function::Type),
             "SHEET" | "_XLFN.SHEET" => Some(Function::Sheet),
@@ -613,7 +402,6 @@ impl Function {
             "COUNTIFS" => Some(Function::Countifs),
             "MAXIFS" | "_XLFN.MAXIFS" => Some(Function::Maxifs),
             "MINIFS" | "_XLFN.MINIFS" => Some(Function::Minifs),
-            "GEOMEAN" => Some(Function::Geomean),
             // Date and Time
             "YEAR" => Some(Function::Year),
             "DAY" => Some(Function::Day),
@@ -790,7 +578,6 @@ impl fmt::Display for Function {
             Function::Search => write!(f, "SEARCH"),
             Function::Text => write!(f, "TEXT"),
             Function::Trim => write!(f, "TRIM"),
-            Function::Unicode => write!(f, "UNICODE"),
             Function::Upper => write!(f, "UPPER"),
             Function::Isnumber => write!(f, "ISNUMBER"),
             Function::Isnontext => write!(f, "ISNONTEXT"),
@@ -805,7 +592,6 @@ impl fmt::Display for Function {
             Function::Isodd => write!(f, "ISODD"),
             Function::Iseven => write!(f, "ISEVEN"),
             Function::ErrorType => write!(f, "ERROR.TYPE"),
-            Function::Formulatext => write!(f, "FORMULATEXT"),
             Function::Isformula => write!(f, "ISFORMULA"),
             Function::Type => write!(f, "TYPE"),
             Function::Sheet => write!(f, "SHEET"),
@@ -821,7 +607,6 @@ impl fmt::Display for Function {
             Function::Countifs => write!(f, "COUNTIFS"),
             Function::Maxifs => write!(f, "MAXIFS"),
             Function::Minifs => write!(f, "MINIFS"),
-            Function::Geomean => write!(f, "GEOMEAN"),
             Function::Year => write!(f, "YEAR"),
             Function::Day => write!(f, "DAY"),
             Function::Month => write!(f, "MONTH"),
@@ -923,23 +708,7 @@ impl fmt::Display for Function {
     }
 }
 
-/// Documentation for one function
-pub struct Documentation {
-    pub name: String,
-}
-
 impl Model {
-    /// Produces documentation for all implemented functions
-    pub fn documentation() -> Vec<Documentation> {
-        let mut doc = Vec::new();
-        for function in Function::into_iter() {
-            doc.push(Documentation {
-                name: function.to_string(),
-            });
-        }
-        doc
-    }
-
     pub(crate) fn evaluate_function(
         &mut self,
         kind: &Function,
@@ -1026,7 +795,6 @@ impl Model {
             Function::Search => self.fn_search(args, cell),
             Function::Text => self.fn_text(args, cell),
             Function::Trim => self.fn_trim(args, cell),
-            Function::Unicode => self.fn_unicode(args, cell),
             Function::Upper => self.fn_upper(args, cell),
             // Information
             Function::Isnumber => self.fn_isnumber(args, cell),
@@ -1042,7 +810,6 @@ impl Model {
             Function::Isodd => self.fn_isodd(args, cell),
             Function::Iseven => self.fn_iseven(args, cell),
             Function::ErrorType => self.fn_errortype(args, cell),
-            Function::Formulatext => self.fn_formulatext(args, cell),
             Function::Isformula => self.fn_isformula(args, cell),
             Function::Type => self.fn_type(args, cell),
             Function::Sheet => self.fn_sheet(args, cell),
@@ -1058,7 +825,6 @@ impl Model {
             Function::Countifs => self.fn_countifs(args, cell),
             Function::Maxifs => self.fn_maxifs(args, cell),
             Function::Minifs => self.fn_minifs(args, cell),
-            Function::Geomean => self.fn_geomean(args, cell),
             // Date and Time
             Function::Year => self.fn_year(args, cell),
             Function::Day => self.fn_day(args, cell),
@@ -1162,67 +928,3 @@ impl Model {
         }
     }
 }
-
-#[cfg(test)]
-mod tests {
-    #![allow(clippy::unwrap_used)]
-    use std::{
-        fs::File,
-        io::{BufRead, BufReader},
-    };
-
-    use crate::functions::Function;
-
-    #[test]
-    fn function_iterator() {
-        // This checks that the number of functions in the enum is the same
-        // as the number of functions in the Iterator.
-
-        // This is tricky. In Rust we cannot loop over all the members of an enum.
-        // There are alternatives like using an external crate like strum.
-        // But I am not in the mood for that.
-
-        // What we do here is read this file , extract the functions in the enum
-        // and check they are the same as in the iterator
-        let file = File::open("src/functions/mod.rs").unwrap();
-        let reader = BufReader::new(file);
-        let mut start = false;
-        let mut list = Vec::new();
-
-        for line in reader.lines() {
-            let text = line.unwrap();
-            let text = text.trim().trim_end_matches(',');
-            if text == "pub enum Function {" {
-                start = true;
-                continue;
-            }
-            if start {
-                if text == "}" {
-                    break;
-                }
-                if text.starts_with("//") {
-                    // skip comments
-                    continue;
-                }
-                if text.is_empty() {
-                    // skip empty lines
-                    continue;
-                }
-                list.push(text.to_owned());
-            }
-        }
-        // 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('.', ""))
-            .collect::<Vec<_>>();
-
-        let len = iter_list.len();
-
-        assert_eq!(list.len(), len);
-        // We still need to check there are no duplicates. This will fail if a function in iter_list
-        // is included twice and one is missing
-        for function in list {
-            assert!(iter_list.contains(&function.to_uppercase()));
-        }
-    }
-}

base/src/functions/statistical.rs

@@ -381,16 +381,11 @@ impl Model {
         let right_row = first_range.right.row;
         let right_column = first_range.right.column;
 
-        let dimension = match self.workbook.worksheet(first_range.left.sheet) {
-            Ok(s) => s.dimension(),
-            Err(_) => {
-                return CalcResult::new_error(
-                    Error::ERROR,
-                    cell,
-                    format!("Invalid worksheet index: '{}'", first_range.left.sheet),
-                )
-            }
-        };
+        let dimension = self
+            .workbook
+            .worksheet(first_range.left.sheet)
+            .expect("Sheet expected during evaluation.")
+            .dimension();
         let max_row = dimension.max_row;
         let max_column = dimension.max_column;
 
@@ -531,28 +526,20 @@ impl Model {
         let mut right_column = sum_range.right.column;
 
         if left_row == 1 && right_row == LAST_ROW {
-            right_row = match self.workbook.worksheet(sum_range.left.sheet) {
-                Ok(s) => s.dimension().max_row,
-                Err(_) => {
-                    return Err(CalcResult::new_error(
-                        Error::ERROR,
-                        cell,
-                        format!("Invalid worksheet index: '{}'", sum_range.left.sheet),
-                    ));
-                }
-            };
+            right_row = self
+                .workbook
+                .worksheet(sum_range.left.sheet)
+                .expect("Sheet expected during evaluation.")
+                .dimension()
+                .max_row;
         }
         if left_column == 1 && right_column == LAST_COLUMN {
-            right_column = match self.workbook.worksheet(sum_range.left.sheet) {
-                Ok(s) => s.dimension().max_column,
-                Err(_) => {
-                    return Err(CalcResult::new_error(
-                        Error::ERROR,
-                        cell,
-                        format!("Invalid worksheet index: '{}'", sum_range.left.sheet),
-                    ));
-                }
-            };
+            right_column = self
+                .workbook
+                .worksheet(sum_range.left.sheet)
+                .expect("Sheet expected during evaluation.")
+                .dimension()
+                .max_column;
         }
 
         for row in left_row..right_row + 1 {
@@ -635,85 +622,4 @@ impl Model {
         }
         CalcResult::Number(max)
     }
-
-    pub(crate) fn fn_geomean(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
-        if args.is_empty() {
-            return CalcResult::new_args_number_error(cell);
-        }
-        let mut count = 0.0;
-        let mut product = 1.0;
-        for arg in args {
-            match self.evaluate_node_in_context(arg, cell) {
-                CalcResult::Number(value) => {
-                    count += 1.0;
-                    product *= value;
-                }
-                CalcResult::Boolean(b) => {
-                    if let Node::ReferenceKind { .. } = arg {
-                    } else {
-                        product *= if b { 1.0 } else { 0.0 };
-                        count += 1.0;
-                    }
-                }
-                CalcResult::Range { left, right } => {
-                    if left.sheet != right.sheet {
-                        return CalcResult::new_error(
-                            Error::VALUE,
-                            cell,
-                            "Ranges are in different sheets".to_string(),
-                        );
-                    }
-                    for row in left.row..(right.row + 1) {
-                        for column in left.column..(right.column + 1) {
-                            match self.evaluate_cell(CellReferenceIndex {
-                                sheet: left.sheet,
-                                row,
-                                column,
-                            }) {
-                                CalcResult::Number(value) => {
-                                    count += 1.0;
-                                    product *= value;
-                                }
-                                error @ CalcResult::Error { .. } => return error,
-                                CalcResult::Range { .. } => {
-                                    return CalcResult::new_error(
-                                        Error::ERROR,
-                                        cell,
-                                        "Unexpected Range".to_string(),
-                                    );
-                                }
-                                _ => {}
-                            }
-                        }
-                    }
-                }
-                error @ CalcResult::Error { .. } => return error,
-                CalcResult::String(s) => {
-                    if let Node::ReferenceKind { .. } = arg {
-                        // Do nothing
-                    } else if let Ok(t) = s.parse::<f64>() {
-                        product *= t;
-                        count += 1.0;
-                    } else {
-                        return CalcResult::Error {
-                            error: Error::VALUE,
-                            origin: cell,
-                            message: "Argument cannot be cast into number".to_string(),
-                        };
-                    }
-                }
-                _ => {
-                    // Ignore everything else
-                }
-            };
-        }
-        if count == 0.0 {
-            return CalcResult::Error {
-                error: Error::DIV,
-                origin: cell,
-                message: "Division by Zero".to_string(),
-            };
-        }
-        CalcResult::Number(product.powf(1.0 / count))
-    }
 }

base/src/functions/subtotal.rs

@@ -53,13 +53,8 @@ impl Model {
         false
     }
 
-    fn cell_hidden_status(
-        &self,
-        sheet_index: u32,
-        row: i32,
-        column: i32,
-    ) -> Result<CellTableStatus, String> {
-        let worksheet = self.workbook.worksheet(sheet_index)?;
+    fn cell_hidden_status(&self, sheet_index: u32, row: i32, column: i32) -> CellTableStatus {
+        let worksheet = self.workbook.worksheet(sheet_index).expect("");
         let mut hidden = false;
         for row_style in &worksheet.rows {
             if row_style.r == row {
@@ -68,13 +63,13 @@ impl Model {
             }
         }
         if !hidden {
-            return Ok(CellTableStatus::Normal);
+            return CellTableStatus::Normal;
         }
         // The row is hidden we need to know if the table has filters
         if self.get_table_for_cell(sheet_index, row, column) {
-            Ok(CellTableStatus::Filtered)
+            CellTableStatus::Filtered
         } else {
-            Ok(CellTableStatus::Hidden)
+            CellTableStatus::Hidden
         }
     }
 
@@ -148,11 +143,7 @@ impl Model {
                             let column2 = right.column;
 
                             for row in row1..=row2 {
-                                let cell_status = self
-                                    .cell_hidden_status(left.sheet, row, column1)
-                                    .map_err(|message| {
-                                        CalcResult::new_error(Error::ERROR, cell, message)
-                                    })?;
+                                let cell_status = self.cell_hidden_status(left.sheet, row, column1);
                                 if cell_status == CellTableStatus::Filtered {
                                     continue;
                                 }
@@ -389,14 +380,7 @@ impl Model {
                             let column2 = right.column;
 
                             for row in row1..=row2 {
-                                let cell_status = match self
-                                    .cell_hidden_status(left.sheet, row, column1)
-                                {
-                                    Ok(s) => s,
-                                    Err(message) => {
-                                        return CalcResult::new_error(Error::ERROR, cell, message);
-                                    }
-                                };
+                                let cell_status = self.cell_hidden_status(left.sheet, row, column1);
                                 if cell_status == CellTableStatus::Filtered {
                                     continue;
                                 }
@@ -465,14 +449,7 @@ impl Model {
                             let column2 = right.column;
 
                             for row in row1..=row2 {
-                                let cell_status = match self
-                                    .cell_hidden_status(left.sheet, row, column1)
-                                {
-                                    Ok(s) => s,
-                                    Err(message) => {
-                                        return CalcResult::new_error(Error::ERROR, cell, message);
-                                    }
-                                };
+                                let cell_status = self.cell_hidden_status(left.sheet, row, column1);
                                 if cell_status == CellTableStatus::Filtered {
                                     continue;
                                 }

base/src/functions/text.rs

@@ -342,53 +342,6 @@ impl Model {
         CalcResult::new_args_number_error(cell)
     }
 
-    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::String(v) => v,
-                CalcResult::Boolean(b) => {
-                    if b {
-                        "TRUE".to_string()
-                    } else {
-                        "FALSE".to_string()
-                    }
-                }
-                error @ CalcResult::Error { .. } => return error,
-                CalcResult::Range { .. } => {
-                    // Implicit Intersection not implemented
-                    return CalcResult::Error {
-                        error: Error::NIMPL,
-                        origin: cell,
-                        message: "Implicit Intersection not implemented".to_string(),
-                    };
-                }
-                CalcResult::EmptyCell | CalcResult::EmptyArg => {
-                    return CalcResult::Error {
-                        error: Error::VALUE,
-                        origin: cell,
-                        message: "Empty cell".to_string(),
-                    }
-                }
-            };
-
-            match s.chars().next() {
-                Some(c) => {
-                    let unicode_number = c as u32;
-                    return CalcResult::Number(unicode_number as f64);
-                }
-                None => {
-                    return CalcResult::Error {
-                        error: Error::VALUE,
-                        origin: cell,
-                        message: "Empty cell".to_string(),
-                    };
-                }
-            }
-        }
-        CalcResult::new_args_number_error(cell)
-    }
-
     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) {
@@ -550,7 +503,7 @@ impl Model {
             }
             result.push(ch);
         }
-        CalcResult::String(result.chars().rev().collect::<String>())
+        return CalcResult::String(result.chars().rev().collect::<String>());
     }
 
     pub(crate) fn fn_mid(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
@@ -935,28 +888,20 @@ impl Model {
                     let column1 = left.column;
                     let mut column2 = right.column;
                     if row1 == 1 && row2 == LAST_ROW {
-                        row2 = match self.workbook.worksheet(left.sheet) {
-                            Ok(s) => s.dimension().max_row,
-                            Err(_) => {
-                                return CalcResult::new_error(
-                                    Error::ERROR,
-                                    cell,
-                                    format!("Invalid worksheet index: '{}'", left.sheet),
-                                );
-                            }
-                        };
+                        row2 = self
+                            .workbook
+                            .worksheet(left.sheet)
+                            .expect("Sheet expected during evaluation.")
+                            .dimension()
+                            .max_row;
                     }
                     if column1 == 1 && column2 == LAST_COLUMN {
-                        column2 = match self.workbook.worksheet(left.sheet) {
-                            Ok(s) => s.dimension().max_column,
-                            Err(_) => {
-                                return CalcResult::new_error(
-                                    Error::ERROR,
-                                    cell,
-                                    format!("Invalid worksheet index: '{}'", left.sheet),
-                                );
-                            }
-                        };
+                        column2 = self
+                            .workbook
+                            .worksheet(left.sheet)
+                            .expect("Sheet expected during evaluation.")
+                            .dimension()
+                            .max_column;
                     }
                     for row in row1..row2 + 1 {
                         for column in column1..(column2 + 1) {

base/src/functions/util.rs

@@ -1,5 +1,4 @@
-#[cfg(feature = "use_regex_lite")]
-use regex_lite as regex;
+use regex::{escape, Regex};
 
 use crate::{calc_result::CalcResult, expressions::token::is_english_error_string};
 
@@ -26,9 +25,9 @@ pub(crate) fn values_are_equal(left: &CalcResult, right: &CalcResult) -> bool {
     }
 }
 
-// In Excel there are two ways of comparing cell values.
-// The old school comparison valid in formulas like D3 < D4 or HLOOKUP,... cast empty cells into empty strings or 0
-// For the new formulas like XLOOKUP or SORT an empty cell is always larger than anything else.
+/// In Excel there are two ways of comparing cell values.
+/// The old school comparison valid in formulas like D3 < D4 or HLOOKUP,... cast empty cells into empty strings or 0
+/// For the new formulas like XLOOKUP or SORT an empty cell is always larger than anything else.
 
 // ..., -2, -1, 0, 1, 2, ..., A-Z, FALSE, TRUE;
 pub(crate) fn compare_values(left: &CalcResult, right: &CalcResult) -> i32 {
@@ -87,7 +86,7 @@ pub(crate) fn from_wildcard_to_regex(
     exact: bool,
 ) -> Result<regex::Regex, regex::Error> {
     // 1. Escape all
-    let reg = &regex::escape(wildcard);
+    let reg = &escape(wildcard);
 
     // 2. We convert the escaped '?' into '.' (matches a single character)
     let reg = &reg.replace("\\?", ".");
@@ -110,13 +109,13 @@ 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!("^{}$", reg));
+        return Regex::new(&format!("^{}$", reg));
     }
-    regex::Regex::new(reg)
+    Regex::new(reg)
 }
 
-// NUMBERS ///
-//*********///
+/// NUMBERS ///
+///*********///
 
 // It could be either the number or a string representation of the number
 // In the rest of the cases calc_result needs to be a number (cannot be the string "23", for instance)
@@ -181,8 +180,8 @@ fn result_is_not_equal_to_number(calc_result: &CalcResult, target: f64) -> bool
     }
 }
 
-// BOOLEANS ///
-//**********///
+/// BOOLEANS ///
+///**********///
 
 // Booleans have to be "exactly" equal
 fn result_is_equal_to_bool(calc_result: &CalcResult, target: bool) -> bool {
@@ -199,12 +198,12 @@ fn result_is_not_equal_to_bool(calc_result: &CalcResult, target: bool) -> bool {
     }
 }
 
-// STRINGS ///
-//*********///
+/// STRINGS ///
+///*********///
 
-// Note that strings are case insensitive. `target` must always be lower case.
+/// Note that strings are case insensitive. `target` must always be lower case.
 
-pub(crate) fn result_matches_regex(calc_result: &CalcResult, reg: &regex::Regex) -> bool {
+pub(crate) fn result_matches_regex(calc_result: &CalcResult, reg: &Regex) -> bool {
     match calc_result {
         CalcResult::String(s) => reg.is_match(&s.to_lowercase()),
         _ => false,
@@ -270,8 +269,8 @@ fn result_is_greater_or_equal_than_string(calc_result: &CalcResult, target: &str
     }
 }
 
-// ERRORS ///
-//********///
+/// ERRORS ///
+///********///
 
 fn result_is_equal_to_error(calc_result: &CalcResult, target: &str) -> bool {
     match calc_result {
@@ -287,8 +286,8 @@ fn result_is_not_equal_to_error(calc_result: &CalcResult, target: &str) -> bool
     }
 }
 
-// EMPTY ///
-//*******///
+/// EMPTY ///
+///*******///
 
 // Note that these two are not inverse of each other.
 // In particular, you can never match an empty cell.

base/src/functions/xlookup.rs

@@ -251,28 +251,20 @@ impl Model {
                         let column1 = left.column;
 
                         if row1 == 1 && row2 == LAST_ROW {
-                            row2 = match self.workbook.worksheet(left.sheet) {
-                                Ok(s) => s.dimension().max_row,
-                                Err(_) => {
-                                    return CalcResult::new_error(
-                                        Error::ERROR,
-                                        cell,
-                                        format!("Invalid worksheet index: '{}'", left.sheet),
-                                    );
-                                }
-                            };
+                            row2 = self
+                                .workbook
+                                .worksheet(left.sheet)
+                                .expect("Sheet expected during evaluation.")
+                                .dimension()
+                                .max_row;
                         }
                         if column1 == 1 && column2 == LAST_COLUMN {
-                            column2 = match self.workbook.worksheet(left.sheet) {
-                                Ok(s) => s.dimension().max_column,
-                                Err(_) => {
-                                    return CalcResult::new_error(
-                                        Error::ERROR,
-                                        cell,
-                                        format!("Invalid worksheet index: '{}'", left.sheet),
-                                    );
-                                }
-                            };
+                            column2 = self
+                                .workbook
+                                .worksheet(left.sheet)
+                                .expect("Sheet expected during evaluation.")
+                                .dimension()
+                                .max_column;
                         }
                         let left = CellReferenceIndex {
                             sheet: left.sheet,

base/src/language/language.bin

@@ -1 +0,0 @@
-PfrendeesD<>VRAITRUEWAHRVERDADEROTVFAUXFALSEFALSCHFALSOUw#REF!#REF!#BEZUG!#¡REF!e<>#NOM?#NAME?#NAME?#¿NOMBRE?x<>#VALEUR!#VALUE!#WERT!#¡VALOR!w<>#DIV/0!#DIV/0!#DIV/0!#¡DIV/0!<04>#N/A#N/A#NV#N/AXv#NOMBRE!#NUM!#ZAHL!#¡NUM!<02><>#N/IMPL!#N/IMPL!#N/IMPL!#N/IMPL!w{#SPILL!#SPILL!#ÜBERLAUF!#SPILL!ff#CALC!#CALC!#CALC!#CALC!ff#CIRC!#CIRC!#CIRC!#CIRC!ww#ERROR!#ERROR!#ERROR!#ERROR!ff#NULL!#NULL!#NULL!#NULL!

base/src/language/mod.rs

@@ -1,17 +1,20 @@
+use once_cell::sync::Lazy;
+use serde::{Deserialize, Serialize};
+
 use std::collections::HashMap;
 
-use bitcode::{Decode, Encode};
-use once_cell::sync::Lazy;
-
-#[derive(Encode, Decode, Clone)]
+#[derive(Serialize, Deserialize, Clone)]
 pub struct Booleans {
-    pub r#true: String,
-    pub r#false: String,
+    #[serde(rename = "true")]
+    pub true_value: String,
+    #[serde(rename = "false")]
+    pub false_value: String,
 }
 
-#[derive(Encode, Decode, Clone)]
+#[derive(Serialize, Deserialize, Clone)]
 pub struct Errors {
-    pub r#ref: String,
+    #[serde(rename = "ref")]
+    pub ref_value: String,
     pub name: String,
     pub value: String,
     pub div: String,
@@ -25,15 +28,14 @@ pub struct Errors {
     pub null: String,
 }
 
-#[derive(Encode, Decode, Clone)]
+#[derive(Serialize, Deserialize, Clone)]
 pub struct Language {
     pub booleans: Booleans,
     pub errors: Errors,
 }
 
-#[allow(clippy::expect_used)]
 static LANGUAGES: Lazy<HashMap<String, Language>> = Lazy::new(|| {
-    bitcode::decode(include_bytes!("language.bin")).expect("Failed parsing language file")
+    serde_json::from_str(include_str!("language.json")).expect("Failed parsing language file")
 });
 
 pub fn get_language(id: &str) -> Result<&Language, String> {

base/src/lib.rs

@@ -8,7 +8,7 @@
 //!
 //! ```toml
 //! [dependencies]
-//! ironcalc_base = { git = "https://github.com/ironcalc/IronCalc" }
+//! ironcalc_base = { git = "https://github.com/ironcalc/IronCalc", version = "0.1"}
 //! ```
 //!
 //! <small> until version 0.5.0 you should use the git dependencies as stated </small>
@@ -31,21 +31,23 @@ pub mod expressions;
 pub mod formatter;
 pub mod language;
 pub mod locale;
+pub mod model;
 pub mod new_empty;
 pub mod number_format;
 pub mod types;
 pub mod worksheet;
 
+mod functions;
+
 mod actions;
 mod cast;
 mod constants;
-mod diffs;
-mod functions;
-mod implicit_intersection;
-mod model;
 mod styles;
+
+mod diffs;
+mod implicit_intersection;
+
 mod units;
-mod user_model;
 mod utils;
 mod workbook;
 
@@ -54,9 +56,3 @@ mod test;
 
 #[cfg(test)]
 pub mod mock_time;
-
-pub use model::get_milliseconds_since_epoch;
-pub use model::Model;
-pub use user_model::BorderArea;
-pub use user_model::ClipboardData;
-pub use user_model::UserModel;

base/src/locale/mod.rs

@@ -1,29 +1,32 @@
-use bitcode::{Decode, Encode};
 use once_cell::sync::Lazy;
+use serde::{Deserialize, Serialize};
 
 use std::collections::HashMap;
 
-#[derive(Encode, Decode, Clone)]
+#[derive(Serialize, Deserialize, Clone)]
 pub struct Locale {
     pub dates: Dates,
     pub numbers: NumbersProperties,
     pub currency: Currency,
 }
 
-#[derive(Encode, Decode, Clone)]
+#[derive(Serialize, Deserialize, Clone)]
 pub struct Currency {
     pub iso: String,
     pub symbol: String,
 }
 
-#[derive(Encode, Decode, Clone)]
+#[derive(Serialize, Deserialize, Clone)]
 pub struct NumbersProperties {
+    #[serde(rename = "symbols-numberSystem-latn")]
     pub symbols: NumbersSymbols,
+    #[serde(rename = "decimalFormats-numberSystem-latn")]
     pub decimal_formats: DecimalFormats,
+    #[serde(rename = "currencyFormats-numberSystem-latn")]
     pub currency_formats: CurrencyFormats,
 }
 
-#[derive(Encode, Decode, Clone)]
+#[derive(Serialize, Deserialize, Clone)]
 pub struct Dates {
     pub day_names: Vec<String>,
     pub day_names_short: Vec<String>,
@@ -32,7 +35,8 @@ pub struct Dates {
     pub months_letter: Vec<String>,
 }
 
-#[derive(Encode, Decode, Clone)]
+#[derive(Serialize, Deserialize, Clone)]
+#[serde(rename_all = "camelCase")]
 pub struct NumbersSymbols {
     pub decimal: String,
     pub group: String,
@@ -50,27 +54,40 @@ pub struct NumbersSymbols {
 }
 
 // See: https://cldr.unicode.org/translation/number-currency-formats/number-and-currency-patterns
-#[derive(Encode, Decode, Clone)]
+#[derive(Serialize, Deserialize, Clone)]
 pub struct CurrencyFormats {
     pub standard: String,
+    #[serde(rename = "standard-alphaNextToNumber")]
+    #[serde(skip_serializing_if = "Option::is_none")]
     pub standard_alpha_next_to_number: Option<String>,
+    #[serde(rename = "standard-noCurrency")]
     pub standard_no_currency: String,
     pub accounting: String,
+    #[serde(rename = "accounting-alphaNextToNumber")]
+    #[serde(skip_serializing_if = "Option::is_none")]
     pub accounting_alpha_next_to_number: Option<String>,
+    #[serde(rename = "accounting-noCurrency")]
     pub accounting_no_currency: String,
 }
 
-#[derive(Encode, Decode, Clone)]
+#[derive(Serialize, Deserialize, Clone)]
+#[serde(rename_all = "camelCase")]
 pub struct DecimalFormats {
     pub standard: String,
 }
 
-#[allow(clippy::expect_used)]
-static LOCALES: Lazy<HashMap<String, Locale>> =
-    Lazy::new(|| bitcode::decode(include_bytes!("locales.bin")).expect("Failed parsing locale"));
+static LOCALES: Lazy<HashMap<String, Locale>> = Lazy::new(|| {
+    serde_json::from_str(include_str!("locales.json")).expect("Failed parsing locale")
+});
 
-pub fn get_locale(id: &str) -> Result<&Locale, String> {
+pub fn get_locale(_id: &str) -> Result<&Locale, String> {
     // TODO: pass the locale once we implement locales in Rust
+    let locale = LOCALES.get("en").ok_or("Invalid locale")?;
+    Ok(locale)
+}
+
+// TODO: Remove this function one we implement locales properly
+pub fn get_locale_fix(id: &str) -> Result<&Locale, String> {
     let locale = LOCALES.get(id).ok_or("Invalid locale")?;
     Ok(locale)
 }

base/src/mock_time.rs

@@ -10,7 +10,7 @@ use std::cell::RefCell;
 // 8 November 2022 12:13 Berlin time
 
 thread_local! {
-    static MOCK_TIME: RefCell<i64> = const { RefCell::new(1667906008578) };
+    static MOCK_TIME: RefCell<i64> = RefCell::new(1667906008578);
 }
 
 pub fn get_milliseconds_since_epoch() -> i64 {
@@ -20,18 +20,3 @@ pub fn get_milliseconds_since_epoch() -> i64 {
 pub fn set_mock_time(time: i64) {
     MOCK_TIME.with(|cell| *cell.borrow_mut() = time);
 }
-
-#[cfg(test)]
-mod tests {
-    use crate::mock_time::MOCK_TIME;
-
-    use super::get_milliseconds_since_epoch;
-
-    #[test]
-    fn mock_time() {
-        let t = get_milliseconds_since_epoch();
-        assert_eq!(t, 1667906008578);
-
-        MOCK_TIME.with_borrow(|v| assert_eq!(*v, 1667906008578));
-    }
-}

base/src/model.rs

@@ -1,5 +1,15 @@
 #![deny(missing_docs)]
 
+//! # Model
+//!
+//! Note that sheets are 0-indexed and rows and columns are 1-indexed.
+//!
+//! IronCalc is row first. A cell is referenced by (`sheet`, `row`, `column`)
+//!
+
+use bincode::config;
+use serde_json::json;
+
 use std::collections::HashMap;
 use std::vec::Vec;
 
@@ -7,15 +17,19 @@ use crate::{
     calc_result::{CalcResult, Range},
     cell::CellValue,
     constants::{self, LAST_COLUMN, LAST_ROW},
+    expressions::token::{Error, OpCompare, OpProduct, OpSum, OpUnary},
+    expressions::{
+        parser::move_formula::{move_formula, MoveContext},
+        token::get_error_by_name,
+        types::*,
+        utils::{self, is_valid_row},
+    },
     expressions::{
         parser::{
-            move_formula::{move_formula, MoveContext},
             stringify::{to_rc_format, to_string},
             Node, Parser,
         },
-        token::{get_error_by_name, Error, OpCompare, OpProduct, OpSum, OpUnary},
-        types::*,
-        utils::{self, is_valid_column_number, is_valid_row},
+        utils::is_valid_column_number,
     },
     formatter::{
         format::{format_number, parse_formatted_number},
@@ -34,14 +48,9 @@ use chrono_tz::Tz;
 #[cfg(test)]
 pub use crate::mock_time::get_milliseconds_since_epoch;
 
-/// Number of milliseconds since January 1, 1970
-/// Used by time and date functions. It takes the value from the environment:
-/// * The Operative System
-/// * The JavaScript environment
-/// * Or mocked for tests
+/// wasm implementation for time
 #[cfg(not(test))]
 #[cfg(not(target_arch = "wasm32"))]
-#[allow(clippy::expect_used)]
 pub fn get_milliseconds_since_epoch() -> i64 {
     use std::time::{SystemTime, UNIX_EPOCH};
     SystemTime::now()
@@ -50,11 +59,6 @@ pub fn get_milliseconds_since_epoch() -> i64 {
         .as_millis() as i64
 }
 
-/// Number of milliseconds since January 1, 1970
-/// Used by time and date functions. It takes the value from the environment:
-/// * The Operative System
-/// * The JavaScript environment
-/// * Or mocked for tests
 #[cfg(not(test))]
 #[cfg(target_arch = "wasm32")]
 pub fn get_milliseconds_since_epoch() -> i64 {
@@ -64,7 +68,7 @@ pub fn get_milliseconds_since_epoch() -> i64 {
 
 /// A cell might be evaluated or being evaluated
 #[derive(Clone)]
-pub(crate) enum CellState {
+pub enum CellState {
     /// The cell has already been evaluated
     Evaluated,
     /// The cell is being evaluated
@@ -72,7 +76,7 @@ pub(crate) enum CellState {
 }
 
 /// A parsed formula for a defined name
-pub(crate) enum ParsedDefinedName {
+pub enum ParsedDefinedName {
     /// CellReference (`=C4`)
     CellReference(CellReferenceIndex),
     /// A Range (`=C4:D6`)
@@ -102,21 +106,19 @@ pub struct Model {
     /// A list of parsed formulas
     pub parsed_formulas: Vec<Vec<Node>>,
     /// A list of parsed defined names
-    pub(crate) parsed_defined_names: HashMap<(Option<u32>, String), ParsedDefinedName>,
+    pub parsed_defined_names: HashMap<(Option<u32>, String), ParsedDefinedName>,
     /// An optimization to lookup strings faster
-    pub(crate) shared_strings: HashMap<String, usize>,
+    pub shared_strings: HashMap<String, usize>,
     /// An instance of the parser
-    pub(crate) parser: Parser,
+    pub parser: Parser,
     /// The list of cells with formulas that are evaluated of being evaluated
-    pub(crate) cells: HashMap<(u32, i32, i32), CellState>,
+    pub cells: HashMap<(u32, i32, i32), CellState>,
     /// The locale of the model
-    pub(crate) locale: Locale,
+    pub locale: Locale,
     /// Tha language used
-    pub(crate) language: Language,
+    pub language: Language,
     /// The timezone used to evaluate the model
-    pub(crate) tz: Tz,
-    /// The view id. A view consist of a selected sheet and ranges.
-    pub(crate) view_id: u32,
+    pub tz: Tz,
 }
 
 // FIXME: Maybe this should be the same as CellReference
@@ -530,7 +532,6 @@ impl Model {
         }
     }
 
-    #[allow(clippy::expect_used)]
     fn cell_reference_to_string(
         &self,
         cell_reference: &CellReferenceIndex,
@@ -546,7 +547,6 @@ impl Model {
     /// Sets `result` in the cell given by `sheet` sheet index, row and column
     /// Note that will panic if the cell does not exist
     /// It will do nothing if the cell does not have a formula
-    #[allow(clippy::expect_used)]
     fn set_cell_value(&mut self, cell_reference: CellReferenceIndex, result: &CalcResult) {
         let CellReferenceIndex { sheet, column, row } = cell_reference;
         let cell = &self.workbook.worksheets[sheet as usize].sheet_data[&row][&column];
@@ -660,7 +660,7 @@ impl Model {
     /// # Examples
     ///
     /// ```rust
-    /// # use ironcalc_base::Model;
+    /// # use ironcalc_base::model::Model;
     /// # fn main() -> Result<(), Box<dyn std::error::Error>> {
     /// let mut model = Model::new_empty("model", "en", "UTC")?;
     /// assert_eq!(model.workbook.worksheet(0)?.color, None);
@@ -682,13 +682,6 @@ impl Model {
         Err(format!("Invalid color: {}", color))
     }
 
-    /// Makes the grid lines in the sheet visible (`true`) or hidden (`false`)
-    pub fn set_show_grid_lines(&mut self, sheet: u32, show_grid_lines: bool) -> Result<(), String> {
-        let worksheet = self.workbook.worksheet_mut(sheet)?;
-        worksheet.show_grid_lines = show_grid_lines;
-        Ok(())
-    }
-
     fn get_cell_value(&self, cell: &Cell, cell_reference: CellReferenceIndex) -> CalcResult {
         use Cell::*;
         match cell {
@@ -734,7 +727,7 @@ impl Model {
     /// # Examples
     ///
     /// ```rust
-    /// # use ironcalc_base::Model;
+    /// # use ironcalc_base::model::Model;
     /// # fn main() -> Result<(), Box<dyn std::error::Error>> {
     /// let mut model = Model::new_empty("model", "en", "UTC")?;
     /// assert_eq!(model.is_empty_cell(0, 1, 1)?, true);
@@ -806,17 +799,17 @@ impl Model {
         None
     }
 
-    /// Returns a model from an internal binary representation of a workbook
+    /// Returns a model from a String representation of a workbook
     ///
     /// # Examples
     ///
     /// ```rust
-    /// # use ironcalc_base::Model;
+    /// # use ironcalc_base::model::Model;
     /// # use ironcalc_base::cell::CellValue;
     /// # fn main() -> Result<(), Box<dyn std::error::Error>> {
     /// let mut model = Model::new_empty("model", "en", "UTC")?;
     /// model.set_user_input(0, 1, 1, "Stella!".to_string());
-    /// let model2 = Model::from_bytes(&model.to_bytes())?;
+    /// let model2 = Model::from_json(&model.to_json_str())?;
     /// assert_eq!(
     ///     model2.get_cell_value_by_index(0, 1, 1),
     ///     Ok(CellValue::String("Stella!".to_string()))
@@ -824,12 +817,9 @@ impl Model {
     /// # Ok(())
     /// # }
     /// ```
-    ///
-    /// See also:
-    /// * [Model::to_bytes]
-    pub fn from_bytes(s: &[u8]) -> Result<Model, String> {
+    pub fn from_json(s: &str) -> Result<Model, String> {
         let workbook: Workbook =
-            bitcode::decode(s).map_err(|e| format!("Error parsing workbook: {e}"))?;
+            serde_json::from_str(s).map_err(|_| "Error parsing workbook".to_string())?;
         Model::from_workbook(workbook)
     }
 
@@ -838,7 +828,7 @@ impl Model {
     /// # Examples
     ///
     /// ```rust
-    /// # use ironcalc_base::Model;
+    /// # use ironcalc_base::model::Model;
     /// # use ironcalc_base::cell::CellValue;
     /// # fn main() -> Result<(), Box<dyn std::error::Error>> {
     /// let mut model = Model::new_empty("model", "en", "UTC")?;
@@ -878,7 +868,6 @@ impl Model {
             .map_err(|_| format!("Invalid timezone: {}", workbook.settings.tz))?;
 
         // FIXME: Add support for display languages
-        #[allow(clippy::expect_used)]
         let language = get_language("en").expect("").clone();
         let mut shared_strings = HashMap::new();
         for (index, s) in workbook.shared_strings.iter().enumerate() {
@@ -895,7 +884,6 @@ impl Model {
             language,
             locale,
             tz,
-            view_id: 0,
         };
 
         model.parse_formulas();
@@ -909,7 +897,7 @@ impl Model {
     /// # Examples
     ///
     /// ```rust
-    /// # use ironcalc_base::Model;
+    /// # use ironcalc_base::model::Model;
     /// # use ironcalc_base::expressions::types::CellReferenceIndex;
     /// # fn main() -> Result<(), Box<dyn std::error::Error>> {
     /// let mut model = Model::new_empty("model", "en", "UTC")?;
@@ -978,7 +966,7 @@ impl Model {
     /// # Examples
     ///
     /// ```rust
-    /// # use ironcalc_base::Model;
+    /// # use ironcalc_base::model::Model;
     /// # use ironcalc_base::expressions::types::{Area, CellReferenceIndex};
     /// # fn main() -> Result<(), Box<dyn std::error::Error>> {
     /// let mut model = Model::new_empty("model", "en", "UTC")?;
@@ -1049,7 +1037,7 @@ impl Model {
     /// # Examples
     ///
     /// ```rust
-    /// # use ironcalc_base::Model;
+    /// # use ironcalc_base::model::Model;
     /// # fn main() -> Result<(), Box<dyn std::error::Error>> {
     /// let mut model = Model::new_empty("model", "en", "UTC")?;
     /// let (sheet, row, column) = (0, 1, 1);
@@ -1096,7 +1084,7 @@ impl Model {
     /// # Examples
     ///
     /// ```rust
-    /// # use ironcalc_base::Model;
+    /// # use ironcalc_base::model::Model;
     /// # use ironcalc_base::expressions::types::CellReferenceIndex;
     /// # fn main() -> Result<(), Box<dyn std::error::Error>> {
     /// let mut model = Model::new_empty("model", "en", "UTC")?;
@@ -1151,13 +1139,13 @@ impl Model {
     /// # Examples
     ///
     /// ```rust
-    /// # use ironcalc_base::Model;
+    /// # use ironcalc_base::model::Model;
     /// # fn main() -> Result<(), Box<dyn std::error::Error>> {
     /// let mut model = Model::new_empty("model", "en", "UTC")?;
     /// let (sheet, row, column) = (0, 1, 1);
     /// model.set_user_input(sheet, row, column, "=SIN(B1*C3)+1".to_string());
     /// model.evaluate();
-    /// let result = model.get_cell_formula(sheet, row, column)?;
+    /// let result = model.cell_formula(sheet, row, column)?;
     /// assert_eq!(result, Some("=SIN(B1*C3)+1".to_string()));
     /// # Ok(())
     /// # }
@@ -1165,33 +1153,24 @@ impl Model {
     ///
     /// See also:
     /// * [Model::get_cell_content()]
-    pub fn get_cell_formula(
+    pub fn cell_formula(
         &self,
         sheet: u32,
         row: i32,
         column: i32,
     ) -> Result<Option<String>, String> {
         let worksheet = self.workbook.worksheet(sheet)?;
-        match worksheet.cell(row, column) {
-            Some(cell) => match cell.get_formula() {
-                Some(formula_index) => {
-                    let formula = &self
-                        .parsed_formulas
-                        .get(sheet as usize)
-                        .ok_or("missing sheet")?
-                        .get(formula_index as usize)
-                        .ok_or("missing formula")?;
+        Ok(worksheet.cell(row, column).and_then(|cell| {
+            cell.get_formula().map(|formula_index| {
+                let formula = &self.parsed_formulas[sheet as usize][formula_index as usize];
                 let cell_ref = CellReferenceRC {
                     sheet: worksheet.get_name(),
                     row,
                     column,
                 };
-                    Ok(Some(format!("={}", to_string(formula, &cell_ref))))
-                }
-                None => Ok(None),
-            },
-            None => Ok(None),
-        }
+                format!("={}", to_string(formula, &cell_ref))
+            })
+        }))
     }
 
     /// Updates the value of a cell with some text
@@ -1200,14 +1179,14 @@ impl Model {
     /// # Examples
     ///
     /// ```rust
-    /// # use ironcalc_base::Model;
+    /// # use ironcalc_base::model::Model;
     /// # fn main() -> Result<(), Box<dyn std::error::Error>> {
     /// let mut model = Model::new_empty("model", "en", "UTC")?;
     /// let (sheet, row, column) = (0, 1, 1);
-    /// model.set_user_input(sheet, row, column, "Hello!".to_string())?;
+    /// model.set_user_input(sheet, row, column, "Hello!".to_string());
     /// assert_eq!(model.get_cell_content(sheet, row, column)?, "Hello!".to_string());
     ///
-    /// model.update_cell_with_text(sheet, row, column, "Goodbye!")?;
+    /// model.update_cell_with_text(sheet, row, column, "Goodbye!");
     /// assert_eq!(model.get_cell_content(sheet, row, column)?, "Goodbye!".to_string());
     /// # Ok(())
     /// # }
@@ -1218,30 +1197,23 @@ impl Model {
     /// * [Model::update_cell_with_number()]
     /// * [Model::update_cell_with_bool()]
     /// * [Model::update_cell_with_formula()]
-    pub fn update_cell_with_text(
-        &mut self,
-        sheet: u32,
-        row: i32,
-        column: i32,
-        value: &str,
-    ) -> Result<(), String> {
-        let style_index = self.get_cell_style_index(sheet, row, column)?;
+    pub fn update_cell_with_text(&mut self, sheet: u32, row: i32, column: i32, value: &str) {
+        let style_index = self.get_cell_style_index(sheet, row, column);
         let new_style_index;
         if common::value_needs_quoting(value, &self.language) {
             new_style_index = self
                 .workbook
                 .styles
-                .get_style_with_quote_prefix(style_index)?;
+                .get_style_with_quote_prefix(style_index);
         } else if self.workbook.styles.style_is_quote_prefix(style_index) {
             new_style_index = self
                 .workbook
                 .styles
-                .get_style_without_quote_prefix(style_index)?;
+                .get_style_without_quote_prefix(style_index);
         } else {
             new_style_index = style_index;
         }
-
-        self.set_cell_with_string(sheet, row, column, value, new_style_index)
+        self.set_cell_with_string(sheet, row, column, value, new_style_index);
     }
 
     /// Updates the value of a cell with a boolean value
@@ -1250,14 +1222,14 @@ impl Model {
     /// # Examples
     ///
     /// ```rust
-    /// # use ironcalc_base::Model;
+    /// # use ironcalc_base::model::Model;
     /// # fn main() -> Result<(), Box<dyn std::error::Error>> {
     /// let mut model = Model::new_empty("model", "en", "UTC")?;
     /// let (sheet, row, column) = (0, 1, 1);
-    /// model.set_user_input(sheet, row, column, "TRUE".to_string())?;
+    /// model.set_user_input(sheet, row, column, "TRUE".to_string());
     /// assert_eq!(model.get_cell_content(sheet, row, column)?, "TRUE".to_string());
     ///
-    /// model.update_cell_with_bool(sheet, row, column, false)?;
+    /// model.update_cell_with_bool(sheet, row, column, false);
     /// assert_eq!(model.get_cell_content(sheet, row, column)?, "FALSE".to_string());
     /// # Ok(())
     /// # }
@@ -1268,22 +1240,17 @@ impl Model {
     /// * [Model::update_cell_with_number()]
     /// * [Model::update_cell_with_text()]
     /// * [Model::update_cell_with_formula()]
-    pub fn update_cell_with_bool(
-        &mut self,
-        sheet: u32,
-        row: i32,
-        column: i32,
-        value: bool,
-    ) -> Result<(), String> {
-        let style_index = self.get_cell_style_index(sheet, row, column)?;
+    pub fn update_cell_with_bool(&mut self, sheet: u32, row: i32, column: i32, value: bool) {
+        let style_index = self.get_cell_style_index(sheet, row, column);
         let new_style_index = if self.workbook.styles.style_is_quote_prefix(style_index) {
             self.workbook
                 .styles
-                .get_style_without_quote_prefix(style_index)?
+                .get_style_without_quote_prefix(style_index)
         } else {
             style_index
         };
-        self.set_cell_with_boolean(sheet, row, column, value, new_style_index)
+        let worksheet = &mut self.workbook.worksheets[sheet as usize];
+        worksheet.set_cell_with_boolean(row, column, value, new_style_index);
     }
 
     /// Updates the value of a cell with a number
@@ -1292,14 +1259,14 @@ impl Model {
     /// # Examples
     ///
     /// ```rust
-    /// # use ironcalc_base::Model;
+    /// # use ironcalc_base::model::Model;
     /// # fn main() -> Result<(), Box<dyn std::error::Error>> {
     /// let mut model = Model::new_empty("model", "en", "UTC")?;
     /// let (sheet, row, column) = (0, 1, 1);
-    /// model.set_user_input(sheet, row, column, "42".to_string())?;
+    /// model.set_user_input(sheet, row, column, "42".to_string());
     /// assert_eq!(model.get_cell_content(sheet, row, column)?, "42".to_string());
     ///
-    /// model.update_cell_with_number(sheet, row, column, 23.0)?;
+    /// model.update_cell_with_number(sheet, row, column, 23.0);
     /// assert_eq!(model.get_cell_content(sheet, row, column)?, "23".to_string());
     /// # Ok(())
     /// # }
@@ -1310,22 +1277,17 @@ impl Model {
     /// * [Model::update_cell_with_text()]
     /// * [Model::update_cell_with_bool()]
     /// * [Model::update_cell_with_formula()]
-    pub fn update_cell_with_number(
-        &mut self,
-        sheet: u32,
-        row: i32,
-        column: i32,
-        value: f64,
-    ) -> Result<(), String> {
-        let style_index = self.get_cell_style_index(sheet, row, column)?;
+    pub fn update_cell_with_number(&mut self, sheet: u32, row: i32, column: i32, value: f64) {
+        let style_index = self.get_cell_style_index(sheet, row, column);
         let new_style_index = if self.workbook.styles.style_is_quote_prefix(style_index) {
             self.workbook
                 .styles
-                .get_style_without_quote_prefix(style_index)?
+                .get_style_without_quote_prefix(style_index)
         } else {
             style_index
         };
-        self.set_cell_with_number(sheet, row, column, value, new_style_index)
+        let worksheet = &mut self.workbook.worksheets[sheet as usize];
+        worksheet.set_cell_with_number(row, column, value, new_style_index);
     }
 
     /// Updates the formula of given cell
@@ -1335,15 +1297,15 @@ impl Model {
     /// # Examples
     ///
     /// ```rust
-    /// # use ironcalc_base::Model;
+    /// # use ironcalc_base::model::Model;
     /// # fn main() -> Result<(), Box<dyn std::error::Error>> {
     /// let mut model = Model::new_empty("model", "en", "UTC")?;
     /// let (sheet, row, column) = (0, 1, 1);
-    /// model.set_user_input(sheet, row, column, "=A2*2".to_string())?;
+    /// model.set_user_input(sheet, row, column, "=A2*2".to_string());
     /// model.evaluate();
     /// assert_eq!(model.get_cell_content(sheet, row, column)?, "=A2*2".to_string());
     ///
-    /// model.update_cell_with_formula(sheet, row, column, "=A3*2".to_string())?;
+    /// model.update_cell_with_formula(sheet, row, column, "=A3*2".to_string());
     /// model.evaluate();
     /// assert_eq!(model.get_cell_content(sheet, row, column)?, "=A3*2".to_string());
     /// # Ok(())
@@ -1362,12 +1324,12 @@ impl Model {
         column: i32,
         formula: String,
     ) -> Result<(), String> {
-        let mut style_index = self.get_cell_style_index(sheet, row, column)?;
+        let mut style_index = self.get_cell_style_index(sheet, row, column);
         if self.workbook.styles.style_is_quote_prefix(style_index) {
             style_index = self
                 .workbook
                 .styles
-                .get_style_without_quote_prefix(style_index)?;
+                .get_style_without_quote_prefix(style_index);
         }
         let formula = formula
             .strip_prefix('=')
@@ -1387,7 +1349,7 @@ impl Model {
     /// # Examples
     ///
     /// ```rust
-    /// # use ironcalc_base::Model;
+    /// # use ironcalc_base::model::Model;
     /// # use ironcalc_base::cell::CellValue;
     /// # fn main() -> Result<(), Box<dyn std::error::Error>> {
     /// let mut model = Model::new_empty("model", "en", "UTC")?;
@@ -1397,7 +1359,7 @@ impl Model {
     /// model.set_user_input(0, 1, 2, "=SUM(A:A)".to_string());
     /// model.evaluate();
     /// assert_eq!(model.get_cell_value_by_index(0, 1, 2), Ok(CellValue::Number(215.0)));
-    /// assert_eq!(model.get_formatted_cell_value(0, 1, 2), Ok("215$".to_string()));
+    /// assert_eq!(model.formatted_cell_value(0, 1, 2), Ok("215$".to_string()));
     /// # Ok(())
     /// # }
     /// ```
@@ -1407,36 +1369,31 @@ impl Model {
     /// * [Model::update_cell_with_number()]
     /// * [Model::update_cell_with_bool()]
     /// * [Model::update_cell_with_text()]
-    pub fn set_user_input(
-        &mut self,
-        sheet: u32,
-        row: i32,
-        column: i32,
-        value: String,
-    ) -> Result<(), String> {
+    pub fn set_user_input(&mut self, sheet: u32, row: i32, column: i32, value: String) {
         // If value starts with "'" then we force the style to be quote_prefix
-        let style_index = self.get_cell_style_index(sheet, row, column)?;
+        let style_index = self.get_cell_style_index(sheet, row, column);
         if let Some(new_value) = value.strip_prefix('\'') {
             // First check if it needs quoting
             let new_style = if common::value_needs_quoting(new_value, &self.language) {
                 self.workbook
                     .styles
-                    .get_style_with_quote_prefix(style_index)?
+                    .get_style_with_quote_prefix(style_index)
             } else {
                 style_index
             };
-            self.set_cell_with_string(sheet, row, column, new_value, new_style)?;
+            self.set_cell_with_string(sheet, row, column, new_value, new_style);
         } else {
             let mut new_style_index = style_index;
             if self.workbook.styles.style_is_quote_prefix(style_index) {
                 new_style_index = self
                     .workbook
                     .styles
-                    .get_style_without_quote_prefix(style_index)?;
+                    .get_style_without_quote_prefix(style_index);
             }
             if let Some(formula) = value.strip_prefix('=') {
-                let formula_index =
-                    self.set_cell_with_formula(sheet, row, column, formula, new_style_index)?;
+                let formula_index = self
+                    .set_cell_with_formula(sheet, row, column, formula, new_style_index)
+                    .expect("could not set the cell formula");
                 // Update the style if needed
                 let cell = CellReferenceIndex { sheet, row, column };
                 let parsed_formula = &self.parsed_formulas[sheet as usize][formula_index as usize];
@@ -1444,11 +1401,15 @@ impl Model {
                     let new_style_index = self
                         .workbook
                         .styles
-                        .get_style_with_format(new_style_index, &units.get_num_fmt())?;
-                    let style = self.workbook.styles.get_style(new_style_index)?;
-                    self.set_cell_style(sheet, row, column, &style)?
+                        .get_style_with_format(new_style_index, &units.get_num_fmt());
+                    let style = self.workbook.styles.get_style(new_style_index);
+                    self.set_cell_style(sheet, row, column, &style)
+                        .expect("Failed setting the style");
                 }
             } else {
+                let worksheets = &mut self.workbook.worksheets;
+                let worksheet = &mut worksheets[sheet as usize];
+
                 // The list of currencies is '$', '€' and the local currency
                 let mut currencies = vec!["$", "€"];
                 let currency = &self.locale.currency.symbol;
@@ -1461,39 +1422,35 @@ impl Model {
                         // Should not apply the format in the following cases:
                         // - we assign a date to already date-formatted cell
                         let should_apply_format = !(is_likely_date_number_format(
-                            &self.workbook.styles.get_style(new_style_index)?.num_fmt,
+                            &self.workbook.styles.get_style(new_style_index).num_fmt,
                         ) && is_likely_date_number_format(&num_fmt));
                         if should_apply_format {
                             new_style_index = self
                                 .workbook
                                 .styles
-                                .get_style_with_format(new_style_index, &num_fmt)?;
+                                .get_style_with_format(new_style_index, &num_fmt);
                         }
                     }
-                    let worksheet = self.workbook.worksheet_mut(sheet)?;
-                    worksheet.set_cell_with_number(row, column, v, new_style_index)?;
-                    return Ok(());
+                    worksheet.set_cell_with_number(row, column, v, new_style_index);
+                    return;
                 }
                 // We try to parse as boolean
                 if let Ok(v) = value.to_lowercase().parse::<bool>() {
-                    let worksheet = self.workbook.worksheet_mut(sheet)?;
-                    worksheet.set_cell_with_boolean(row, column, v, new_style_index)?;
-                    return Ok(());
+                    worksheet.set_cell_with_boolean(row, column, v, new_style_index);
+                    return;
                 }
                 // Check is it is error value
                 let upper = value.to_uppercase();
-                let worksheet = self.workbook.worksheet_mut(sheet)?;
                 match get_error_by_name(&upper, &self.language) {
                     Some(error) => {
-                        worksheet.set_cell_with_error(row, column, error, new_style_index)?;
+                        worksheet.set_cell_with_error(row, column, error, new_style_index);
                     }
                     None => {
-                        self.set_cell_with_string(sheet, row, column, &value, new_style_index)?;
+                        self.set_cell_with_string(sheet, row, column, &value, new_style_index);
                     }
                 }
             }
         }
-        Ok(())
     }
 
     fn set_cell_with_formula(
@@ -1534,66 +1491,24 @@ impl Model {
             self.parsed_formulas[sheet as usize].push(parsed_formula);
             formula_index = (shared_formulas.len() as i32) - 1;
         }
-        worksheet.set_cell_with_formula(row, column, formula_index, style)?;
+        worksheet.set_cell_with_formula(row, column, formula_index, style);
         Ok(formula_index)
     }
 
-    fn set_cell_with_string(
-        &mut self,
-        sheet: u32,
-        row: i32,
-        column: i32,
-        value: &str,
-        style: i32,
-    ) -> Result<(), String> {
+    fn set_cell_with_string(&mut self, sheet: u32, row: i32, column: i32, value: &str, style: i32) {
+        let worksheets = &mut self.workbook.worksheets;
+        let worksheet = &mut worksheets[sheet as usize];
         match self.shared_strings.get(value) {
             Some(string_index) => {
-                self.workbook.worksheet_mut(sheet)?.set_cell_with_string(
-                    row,
-                    column,
-                    *string_index as i32,
-                    style,
-                )?;
+                worksheet.set_cell_with_string(row, column, *string_index as i32, style);
             }
             None => {
                 let string_index = self.workbook.shared_strings.len();
                 self.workbook.shared_strings.push(value.to_string());
                 self.shared_strings.insert(value.to_string(), string_index);
-                self.workbook.worksheet_mut(sheet)?.set_cell_with_string(
-                    row,
-                    column,
-                    string_index as i32,
-                    style,
-                )?;
+                worksheet.set_cell_with_string(row, column, string_index as i32, style);
             }
         }
-        Ok(())
-    }
-
-    fn set_cell_with_boolean(
-        &mut self,
-        sheet: u32,
-        row: i32,
-        column: i32,
-        value: bool,
-        style: i32,
-    ) -> Result<(), String> {
-        self.workbook
-            .worksheet_mut(sheet)?
-            .set_cell_with_boolean(row, column, value, style)
-    }
-
-    fn set_cell_with_number(
-        &mut self,
-        sheet: u32,
-        row: i32,
-        column: i32,
-        value: f64,
-        style: i32,
-    ) -> Result<(), String> {
-        self.workbook
-            .worksheet_mut(sheet)?
-            .set_cell_with_number(row, column, value, style)
     }
 
     /// Gets the Excel Value (Bool, Number, String) of a cell
@@ -1615,7 +1530,7 @@ impl Model {
     /// Returns the cell value for (`sheet`, `row`, `column`)
     ///
     /// See also:
-    /// * [Model::get_formatted_cell_value()]
+    /// * [Model::formatted_cell_value()]
     pub fn get_cell_value_by_index(
         &self,
         sheet_index: u32,
@@ -1641,43 +1556,36 @@ impl Model {
     /// # Examples
     ///
     /// ```rust
-    /// # use ironcalc_base::Model;
+    /// # use ironcalc_base::model::Model;
     /// # fn main() -> Result<(), Box<dyn std::error::Error>> {
     /// let mut model = Model::new_empty("model", "en", "UTC")?;
     /// let (sheet, row, column) = (0, 1, 1);
     /// model.set_user_input(sheet, row, column, "=1/3".to_string());
     /// model.evaluate();
-    /// let result = model.get_formatted_cell_value(sheet, row, column)?;
+    /// let result = model.formatted_cell_value(sheet, row, column)?;
     /// assert_eq!(result, "0.333333333".to_string());
     /// # Ok(())
     /// # }
     /// ```
-    pub fn get_formatted_cell_value(
+    pub fn formatted_cell_value(
         &self,
         sheet_index: u32,
         row: i32,
         column: i32,
     ) -> Result<String, String> {
-        match self.workbook.worksheet(sheet_index)?.cell(row, column) {
-            Some(cell) => {
-                let format = self.get_style_for_cell(sheet_index, row, column)?.num_fmt;
+        let format = self.get_style_for_cell(sheet_index, row, column).num_fmt;
+        let cell = self
+            .workbook
+            .worksheet(sheet_index)?
+            .cell(row, column)
+            .cloned()
+            .unwrap_or_default();
         let formatted_value =
             cell.formatted_value(&self.workbook.shared_strings, &self.language, |value| {
                 format_number(value, &format, &self.locale).text
             });
         Ok(formatted_value)
     }
-            None => Ok("".to_string()),
-        }
-    }
-
-    /// Return the typeof a cell
-    pub fn get_cell_type(&self, sheet: u32, row: i32, column: i32) -> Result<CellType, String> {
-        Ok(match self.workbook.worksheet(sheet)?.cell(row, column) {
-            Some(c) => c.get_type(),
-            None => CellType::Number,
-        })
-    }
 
     /// Returns a string with the cell content. If there is a formula returns the formula
     /// If the cell is empty returns the empty string
@@ -1740,53 +1648,15 @@ impl Model {
         }
     }
 
-    /// Removes the content of the cell but leaves the style.
-    ///
-    /// See also:
-    /// * [Model::cell_clear_all()]
-    ///
-    /// # Examples
-    ///
-    /// ```rust
-    /// # use ironcalc_base::Model;
-    /// # fn main() -> Result<(), Box<dyn std::error::Error>> {
-    /// let mut model = Model::new_empty("model", "en", "UTC")?;
-    /// let (sheet, row, column) = (0, 1, 1);
-    /// model.set_user_input(sheet, row, column, "100$".to_string());
-    /// model.cell_clear_contents(sheet, row, column);
-    /// model.set_user_input(sheet, row, column, "10".to_string());
-    /// let result = model.get_formatted_cell_value(sheet, row, column)?;
-    /// assert_eq!(result, "10$".to_string());
-    /// # Ok(())
-    /// # }
-    /// ```
-    pub fn cell_clear_contents(&mut self, sheet: u32, row: i32, column: i32) -> Result<(), String> {
-        self.workbook
-            .worksheet_mut(sheet)?
-            .cell_clear_contents(row, column)?;
+    /// Sets cell to empty. Can be used to delete value without affecting style.
+    pub fn set_cell_empty(&mut self, sheet: u32, row: i32, column: i32) -> Result<(), String> {
+        let worksheet = self.workbook.worksheet_mut(sheet)?;
+        worksheet.set_cell_empty(row, column);
         Ok(())
     }
 
-    /// Deletes a cell by removing it from worksheet data. All content and style is removed.
-    ///
-    /// See also:
-    /// * [Model::cell_clear_contents()]
-    ///
-    /// # Examples
-    ///
-    /// ```rust
-    /// # use ironcalc_base::Model;
-    /// # fn main() -> Result<(), Box<dyn std::error::Error>> {
-    /// let mut model = Model::new_empty("model", "en", "UTC")?;
-    /// let (sheet, row, column) = (0, 1, 1);
-    /// model.set_user_input(sheet, row, column, "100$".to_string());
-    /// model.cell_clear_all(sheet, row, column);
-    /// model.set_user_input(sheet, row, column, "10".to_string());
-    /// let result = model.get_formatted_cell_value(sheet, row, column)?;
-    /// assert_eq!(result, "10".to_string());
-    /// # Ok(())
-    /// # }
-    pub fn cell_clear_all(&mut self, sheet: u32, row: i32, column: i32) -> Result<(), String> {
+    /// Deletes a cell by removing it from worksheet data.
+    pub fn delete_cell(&mut self, sheet: u32, row: i32, column: i32) -> Result<(), String> {
         let worksheet = self.workbook.worksheet_mut(sheet)?;
 
         let sheet_data = &mut worksheet.sheet_data;
@@ -1798,66 +1668,65 @@ impl Model {
     }
 
     /// Returns the style index for cell (`sheet`, `row`, `column`)
-    pub fn get_cell_style_index(&self, sheet: u32, row: i32, column: i32) -> Result<i32, String> {
+    pub fn get_cell_style_index(&self, sheet: u32, row: i32, column: i32) -> i32 {
         // First check the cell, then row, the column
-        let cell = self.workbook.worksheet(sheet)?.cell(row, column);
-
+        let cell = self
+            .workbook
+            .worksheet(sheet)
+            .expect("Invalid sheet")
+            .cell(row, column);
         match cell {
-            Some(cell) => Ok(cell.get_style()),
+            Some(cell) => cell.get_style(),
             None => {
-                let rows = &self.workbook.worksheet(sheet)?.rows;
+                let rows = &self.workbook.worksheets[sheet as usize].rows;
                 for r in rows {
                     if r.r == row {
                         if r.custom_format {
-                            return Ok(r.s);
-                        }
+                            return r.s;
+                        } else {
                             break;
                         }
                     }
-                let cols = &self.workbook.worksheet(sheet)?.cols;
+                }
+                let cols = &self.workbook.worksheets[sheet as usize].cols;
                 for c in cols.iter() {
                     let min = c.min;
                     let max = c.max;
                     if column >= min && column <= max {
-                        return Ok(c.style.unwrap_or(0));
+                        return c.style.unwrap_or(0);
                     }
                 }
-                Ok(0)
+                0
             }
         }
     }
 
     /// Returns the style for cell (`sheet`, `row`, `column`)
-    pub fn get_style_for_cell(&self, sheet: u32, row: i32, column: i32) -> Result<Style, String> {
-        let style_index = self.get_cell_style_index(sheet, row, column)?;
-        let style = self.workbook.styles.get_style(style_index)?;
-        Ok(style)
-    }
-
-    /// Returns an internal binary representation of the workbook
-    ///
-    /// See also:
-    /// * [Model::from_bytes]
-    pub fn to_bytes(&self) -> Vec<u8> {
-        bitcode::encode(&self.workbook)
-    }
-
-    /// Returns data about the worksheets
-    pub fn get_worksheets_properties(&self) -> Vec<SheetProperties> {
+    pub fn get_style_for_cell(&self, sheet: u32, row: i32, column: i32) -> Style {
         self.workbook
-            .worksheets
-            .iter()
-            .map(|worksheet| SheetProperties {
-                name: worksheet.get_name(),
-                state: worksheet.state.to_string(),
-                color: worksheet.color.clone(),
-                sheet_id: worksheet.sheet_id,
-            })
-            .collect()
+            .styles
+            .get_style(self.get_cell_style_index(sheet, row, column))
+    }
+
+    /// Returns a JSON string of the workbook
+    pub fn to_json_str(&self) -> String {
+        match serde_json::to_string(&self.workbook) {
+            Ok(s) => s,
+            Err(_) => {
+                // TODO, is this branch possible at all?
+                json!({"error": "Error stringifying workbook"}).to_string()
+            }
+        }
+    }
+
+    /// bin
+    pub fn to_binary_str(&self) -> Vec<u8> {
+        let config = config::standard();
+        bincode::encode_to_vec(&self.workbook, config).expect("")
     }
 
     /// Returns markup representation of the given `sheet`.
-    pub fn get_sheet_markup(&self, sheet: u32) -> Result<String, String> {
+    pub fn sheet_markup(&self, sheet: u32) -> Result<String, String> {
         let worksheet = self.workbook.worksheet(sheet)?;
         let dimension = worksheet.dimension();
 
@@ -1867,11 +1736,11 @@ impl Model {
             let mut row_markup: Vec<String> = Vec::new();
 
             for column in 1..(dimension.max_column + 1) {
-                let mut cell_markup = match self.get_cell_formula(sheet, row, column)? {
+                let mut cell_markup = match self.cell_formula(sheet, row, column)? {
                     Some(formula) => formula,
-                    None => self.get_formatted_cell_value(sheet, row, column)?,
+                    None => self.formatted_cell_value(sheet, row, column)?,
                 };
-                let style = self.get_style_for_cell(sheet, row, column)?;
+                let style = self.get_style_for_cell(sheet, row, column);
                 if style.font.b {
                     cell_markup = format!("**{cell_markup}**")
                 }
@@ -1908,7 +1777,7 @@ impl Model {
     }
 
     /// Returns the number of frozen rows in `sheet`
-    pub fn get_frozen_rows_count(&self, sheet: u32) -> Result<i32, String> {
+    pub fn get_frozen_rows(&self, sheet: u32) -> Result<i32, String> {
         if let Some(worksheet) = self.workbook.worksheets.get(sheet as usize) {
             Ok(worksheet.frozen_rows)
         } else {
@@ -1917,7 +1786,7 @@ impl Model {
     }
 
     /// Return the number of frozen columns in `sheet`
-    pub fn get_frozen_columns_count(&self, sheet: u32) -> Result<i32, String> {
+    pub fn get_frozen_columns(&self, sheet: u32) -> Result<i32, String> {
         if let Some(worksheet) = self.workbook.worksheets.get(sheet as usize) {
             Ok(worksheet.frozen_columns)
         } else {
@@ -1958,39 +1827,10 @@ impl Model {
             Err("Invalid sheet".to_string())
         }
     }
-
-    /// Returns the width of a column
-    #[inline]
-    pub fn get_column_width(&self, sheet: u32, column: i32) -> Result<f64, String> {
-        self.workbook.worksheet(sheet)?.get_column_width(column)
-    }
-
-    /// Sets the width of a column
-    #[inline]
-    pub fn set_column_width(&mut self, sheet: u32, column: i32, width: f64) -> Result<(), String> {
-        self.workbook
-            .worksheet_mut(sheet)?
-            .set_column_width(column, width)
-    }
-
-    /// Returns the height of a row
-    #[inline]
-    pub fn get_row_height(&self, sheet: u32, row: i32) -> Result<f64, String> {
-        self.workbook.worksheet(sheet)?.row_height(row)
-    }
-
-    /// Sets the height of a row
-    #[inline]
-    pub fn set_row_height(&mut self, sheet: u32, column: i32, height: f64) -> Result<(), String> {
-        self.workbook
-            .worksheet_mut(sheet)?
-            .set_row_height(column, height)
-    }
 }
 
 #[cfg(test)]
 mod tests {
-    #![allow(clippy::expect_used)]
     use super::CellReferenceIndex as CellReference;
     use crate::{test::util::new_empty_model, types::Cell};
 

base/src/new_empty.rs

@@ -1,24 +1,19 @@
-use chrono::DateTime;
+use chrono::NaiveDateTime;
 
 use std::collections::HashMap;
 
 use crate::{
     calc_result::Range,
-    constants::{DEFAULT_WINDOW_HEIGHT, DEFAULT_WINDOW_WIDTH},
     expressions::{
         lexer::LexerMode,
-        parser::{
-            stringify::{rename_sheet_in_node, to_rc_format},
-            Parser,
-        },
+        parser::stringify::{rename_sheet_in_node, to_rc_format},
+        parser::Parser,
         types::CellReferenceRC,
     },
     language::get_language,
     locale::get_locale,
     model::{get_milliseconds_since_epoch, Model, ParsedDefinedName},
-    types::{
-        Metadata, SheetState, Workbook, WorkbookSettings, WorkbookView, Worksheet, WorksheetView,
-    },
+    types::{Metadata, SheetState, Workbook, WorkbookSettings, Worksheet},
     utils::ParsedReference,
 };
 
@@ -38,20 +33,7 @@ fn is_valid_sheet_name(name: &str) -> bool {
 
 impl Model {
     /// Creates a new worksheet. Note that it does not check if the name or the sheet_id exists
-    fn new_empty_worksheet(name: &str, sheet_id: u32, view_ids: &[&u32]) -> Worksheet {
-        let mut views = HashMap::new();
-        for id in view_ids {
-            views.insert(
-                **id,
-                WorksheetView {
-                    row: 1,
-                    column: 1,
-                    range: [1, 1, 1, 1],
-                    top_row: 1,
-                    left_column: 1,
-                },
-            );
-        }
+    fn new_empty_worksheet(name: &str, sheet_id: u32) -> Worksheet {
         Worksheet {
             cols: vec![],
             rows: vec![],
@@ -66,9 +48,6 @@ impl Model {
             color: Default::default(),
             frozen_columns: 0,
             frozen_rows: 0,
-            show_grid_lines: true,
-            views,
-            conditional_formatting: vec![]
         }
     }
 
@@ -143,8 +122,8 @@ impl Model {
         self.parsed_defined_names = parsed_defined_names;
     }
 
-    /// Reparses all formulas and defined names
-    pub(crate) fn reset_parsed_structures(&mut self) {
+    // Reparses all formulas and defined names
+    fn reset_parsed_structures(&mut self) {
         self.parser
             .set_worksheets(self.workbook.get_worksheet_names());
         self.parsed_formulas = vec![];
@@ -155,10 +134,10 @@ impl Model {
     }
 
     /// Adds a sheet with a automatically generated name
-    pub fn new_sheet(&mut self) -> (String, u32) {
+    pub fn new_sheet(&mut self) {
         // First we find a name
 
-        // TODO: The name should depend on the locale
+        // TODO: When/if we support i18n the name could depend on the locale
         let base_name = "Sheet";
         let base_name_uppercase = base_name.to_uppercase();
         let mut index = 1;
@@ -174,11 +153,9 @@ impl Model {
         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();
-        let worksheet = Model::new_empty_worksheet(&sheet_name, sheet_id, &view_ids);
+        let worksheet = Model::new_empty_worksheet(&sheet_name, sheet_id);
         self.workbook.worksheets.push(worksheet);
         self.reset_parsed_structures();
-        (sheet_name, self.workbook.worksheets.len() as u32 - 1)
     }
 
     /// Inserts a sheet with a particular index
@@ -206,8 +183,7 @@ impl Model {
             Some(id) => id,
             None => self.get_new_sheet_id(),
         };
-        let view_ids: Vec<&u32> = self.workbook.views.keys().collect();
-        let worksheet = Model::new_empty_worksheet(sheet_name, sheet_id, &view_ids);
+        let worksheet = Model::new_empty_worksheet(sheet_name, sheet_id);
         if sheet_index as usize > self.workbook.worksheets.len() {
             return Err("Sheet index out of range".to_string());
         }
@@ -247,10 +223,10 @@ 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;
@@ -294,7 +270,7 @@ impl Model {
         if sheet_count == 1 {
             return Err("Cannot delete only sheet".to_string());
         };
-        if sheet_index >= sheet_count {
+        if sheet_index > sheet_count {
             return Err("Sheet index too large".to_string());
         }
         self.workbook.worksheets.remove(sheet_index as usize);
@@ -347,28 +323,18 @@ impl Model {
 
         let milliseconds = get_milliseconds_since_epoch();
         let seconds = milliseconds / 1000;
-        let dt = match DateTime::from_timestamp(seconds, 0) {
+        let dt = match NaiveDateTime::from_timestamp_opt(seconds, 0) {
             Some(s) => s,
             None => return Err(format!("Invalid timestamp: {}", milliseconds)),
         };
         // "2020-08-06T21:20:53Z
         let now = dt.format("%Y-%m-%dT%H:%M:%SZ").to_string();
 
-        let mut views = HashMap::new();
-        views.insert(
-            0,
-            WorkbookView {
-                sheet: 0,
-                window_width: DEFAULT_WINDOW_WIDTH,
-                window_height: DEFAULT_WINDOW_HEIGHT,
-            },
-        );
-
         // String versions of the locale are added here to simplify the serialize/deserialize logic
         let workbook = Workbook {
             shared_strings: vec![],
             defined_names: vec![],
-            worksheets: vec![Model::new_empty_worksheet("Sheet1", 1, &[&0])],
+            worksheets: vec![Model::new_empty_worksheet("Sheet1", 1)],
             styles: Default::default(),
             name: name.to_string(),
             settings: WorkbookSettings {
@@ -384,7 +350,6 @@ impl Model {
                 last_modified: now,
             },
             tables: HashMap::new(),
-            views,
         };
         let parsed_formulas = Vec::new();
         let worksheets = &workbook.worksheets;
@@ -393,7 +358,6 @@ impl Model {
         let cells = HashMap::new();
 
         // FIXME: Add support for display languages
-        #[allow(clippy::expect_used)]
         let language = get_language("en").expect("").clone();
 
         let mut model = Model {
@@ -406,7 +370,6 @@ impl Model {
             locale,
             language,
             tz,
-            view_id: 0,
         };
         model.parse_formulas();
         Ok(model)

base/src/styles.rs

@@ -161,29 +161,26 @@ impl Styles {
 
     pub fn create_named_style(&mut self, style_name: &str, style: &Style) -> Result<(), String> {
         let style_index = self.create_new_style(style);
-        self.add_named_cell_style(style_name, style_index)
+        self.add_named_cell_style(style_name, style_index)?;
+        Ok(())
     }
 
-    pub(crate) fn get_style_with_quote_prefix(&mut self, index: i32) -> Result<i32, String> {
-        let mut style = self.get_style(index)?;
+    pub(crate) fn get_style_with_quote_prefix(&mut self, index: i32) -> i32 {
+        let mut style = self.get_style(index);
         style.quote_prefix = true;
-        Ok(self.get_style_index_or_create(&style))
+        self.get_style_index_or_create(&style)
     }
 
-    pub(crate) fn get_style_with_format(
-        &mut self,
-        index: i32,
-        num_fmt: &str,
-    ) -> Result<i32, String> {
-        let mut style = self.get_style(index)?;
+    pub(crate) fn get_style_with_format(&mut self, index: i32, num_fmt: &str) -> i32 {
+        let mut style = self.get_style(index);
         style.num_fmt = num_fmt.to_string();
-        Ok(self.get_style_index_or_create(&style))
+        self.get_style_index_or_create(&style)
     }
 
-    pub(crate) fn get_style_without_quote_prefix(&mut self, index: i32) -> Result<i32, String> {
-        let mut style = self.get_style(index)?;
+    pub(crate) fn get_style_without_quote_prefix(&mut self, index: i32) -> i32 {
+        let mut style = self.get_style(index);
         style.quote_prefix = false;
-        Ok(self.get_style_index_or_create(&style))
+        self.get_style_index_or_create(&style)
     }
 
     pub(crate) fn style_is_quote_prefix(&self, index: i32) -> bool {
@@ -191,11 +188,9 @@ impl Styles {
         cell_xf.quote_prefix
     }
 
-    pub(crate) fn get_style(&self, index: i32) -> Result<Style, String> {
-        let cell_xf = &self
-            .cell_xfs
-            .get(index as usize)
-            .ok_or("Invalid index provided".to_string())?;
+    pub(crate) fn get_style(&self, index: i32) -> Style {
+        let cell_xf = &self.cell_xfs[index as usize];
+
         let border_id = cell_xf.border_id as usize;
         let fill_id = cell_xf.fill_id as usize;
         let font_id = cell_xf.font_id as usize;
@@ -203,14 +198,14 @@ impl Styles {
         let quote_prefix = cell_xf.quote_prefix;
         let alignment = cell_xf.alignment.clone();
 
-        Ok(Style {
+        Style {
             alignment,
             num_fmt: get_num_fmt(num_fmt_id, &self.num_fmts),
             fill: self.fills[fill_id].clone(),
             font: self.fonts[font_id].clone(),
             border: self.borders[border_id].clone(),
             quote_prefix,
-        })
+        }
     }
 }
 
@@ -226,7 +221,8 @@ impl Model {
         let style_index = self.workbook.styles.get_style_index_or_create(style);
         self.workbook
             .worksheet_mut(sheet)?
-            .set_cell_style(row, column, style_index)
+            .set_cell_style(row, column, style_index);
+        Ok(())
     }
 
     pub fn copy_cell_style(
@@ -241,7 +237,9 @@ impl Model {
 
         self.workbook
             .worksheet_mut(destination_cell.0)?
-            .set_cell_style(destination_cell.1, destination_cell.2, source_style_index)
+            .set_cell_style(destination_cell.1, destination_cell.2, source_style_index);
+
+        Ok(())
     }
 
     /// Sets the style "style_name" in cell
@@ -255,7 +253,8 @@ impl Model {
         let style_index = self.workbook.styles.get_style_index_by_name(style_name)?;
         self.workbook
             .worksheet_mut(sheet)?
-            .set_cell_style(row, column, style_index)
+            .set_cell_style(row, column, style_index);
+        Ok(())
     }
 
     pub fn set_sheet_style(&mut self, sheet: u32, style_name: &str) -> Result<(), String> {

base/src/test/engineering/test_complex.rs

@@ -76,16 +76,10 @@ fn fn_imconjugate() {
 fn fn_imcos() {
     let mut model = new_empty_model();
     model._set("A1", r#"=IMCOS("4+3i")"#);
-    // In macos non intel this is "-6.58066304055116+7.58155274274655i"
-    model._set("A2", r#"=COMPLEX(-6.58066304055116, 7.58155274274654)"#);
-    model._set("A3", r#"=IMABS(IMSUB(A1, A2)) < G1"#);
-
-    // small number
-    model._set("G1", "0.0000001");
 
     model.evaluate();
 
-    assert_eq!(model._get_text("A3"), "TRUE");
+    assert_eq!(model._get_text("A1"), "-6.58066304055116+7.58155274274654i");
 }
 
 #[test]

base/src/test/mod.rs

@@ -1,7 +1,6 @@
 mod test_actions;
 mod test_binary_search;
 mod test_cell;
-mod test_cell_clear_contents;
 mod test_circular_references;
 mod test_column_width;
 mod test_criteria;
@@ -15,7 +14,6 @@ mod test_fn_concatenate;
 mod test_fn_count;
 mod test_fn_exact;
 mod test_fn_financial;
-mod test_fn_formulatext;
 mod test_fn_if;
 mod test_fn_maxifs;
 mod test_fn_minifs;
@@ -25,14 +23,14 @@ mod test_fn_sum;
 mod test_fn_sumifs;
 mod test_fn_textbefore;
 mod test_fn_textjoin;
-mod test_fn_unicode;
 mod test_forward_references;
 mod test_frozen_rows_columns;
 mod test_general;
 mod test_math;
 mod test_metadata;
-mod test_model_cell_clear_all;
+mod test_model_delete_cell;
 mod test_model_is_empty_cell;
+mod test_model_set_cell_empty;
 mod test_move_formula;
 mod test_quote_prefix;
 mod test_set_user_input;
@@ -46,19 +44,12 @@ pub(crate) mod util;
 
 mod engineering;
 mod test_fn_offset;
-mod test_fn_or;
 mod test_number_format;
 
 mod test_escape_quotes;
 mod test_extend;
-mod test_fn_fv;
 mod test_fn_type;
 mod test_frozen_rows_and_columns;
-mod test_geomean;
 mod test_get_cell_content;
-mod test_issue_155;
 mod test_percentage;
-mod test_set_functions_error_handling;
 mod test_today;
-mod test_types;
-mod user_model;

base/src/test/test_actions.rs

@@ -1,9 +1,8 @@
 #![allow(clippy::unwrap_used)]
 
-use crate::constants::{DEFAULT_ROW_HEIGHT, LAST_COLUMN};
+use crate::constants::LAST_COLUMN;
 use crate::model::Model;
 use crate::test::util::new_empty_model;
-use crate::types::Col;
 
 #[test]
 fn test_insert_columns() {
@@ -87,8 +86,7 @@ fn test_insert_rows_styles() {
     let mut model = new_empty_model();
 
     assert!(
-        (DEFAULT_ROW_HEIGHT - model.workbook.worksheet(0).unwrap().row_height(10).unwrap()).abs()
-            < f64::EPSILON
+        (21.0 - model.workbook.worksheet(0).unwrap().row_height(10).unwrap()).abs() < f64::EPSILON
     );
     // sets height 42 in row 10
     model
@@ -107,8 +105,7 @@ fn test_insert_rows_styles() {
 
     // Row 10 has the default height
     assert!(
-        (DEFAULT_ROW_HEIGHT - model.workbook.worksheet(0).unwrap().row_height(10).unwrap()).abs()
-            < f64::EPSILON
+        (21.0 - model.workbook.worksheet(0).unwrap().row_height(10).unwrap()).abs() < f64::EPSILON
     );
 
     // Row 10 is now row 15
@@ -122,8 +119,7 @@ fn test_delete_rows_styles() {
     let mut model = new_empty_model();
 
     assert!(
-        (DEFAULT_ROW_HEIGHT - model.workbook.worksheet(0).unwrap().row_height(10).unwrap()).abs()
-            < f64::EPSILON
+        (21.0 - model.workbook.worksheet(0).unwrap().row_height(10).unwrap()).abs() < f64::EPSILON
     );
     // sets height 42 in row 10
     model
@@ -142,8 +138,7 @@ fn test_delete_rows_styles() {
 
     // Row 10 has the default height
     assert!(
-        (DEFAULT_ROW_HEIGHT - model.workbook.worksheet(0).unwrap().row_height(10).unwrap()).abs()
-            < f64::EPSILON
+        (21.0 - model.workbook.worksheet(0).unwrap().row_height(10).unwrap()).abs() < f64::EPSILON
     );
 
     // Row 10 is now row 5
@@ -200,250 +195,6 @@ fn test_delete_columns() {
     assert_eq!(model._get_formula("A3"), *"=SUM(#REF!:K4)");
 }
 
-#[test]
-fn test_delete_column_width() {
-    let mut model = new_empty_model();
-    let (sheet, column) = (0, 5);
-    let normal_width = model.get_column_width(sheet, column).unwrap();
-    // Set the width of one column to 5 times the normal width
-    assert!(model
-        .set_column_width(sheet, column, normal_width * 5.0)
-        .is_ok());
-
-    // delete it
-    assert!(model.delete_columns(sheet, column, 1).is_ok());
-
-    // all the columns around have the expected width
-    assert_eq!(
-        model.get_column_width(sheet, column - 1).unwrap(),
-        normal_width
-    );
-    assert_eq!(model.get_column_width(sheet, column).unwrap(), normal_width);
-    assert_eq!(
-        model.get_column_width(sheet, column + 1).unwrap(),
-        normal_width
-    );
-}
-
-#[test]
-// We set the style of columns 4 to 7 and delete column 4
-// We check that columns 4 to 6 have the new style
-fn test_delete_first_column_width() {
-    let mut model = new_empty_model();
-    model.workbook.worksheets[0].cols = vec![Col {
-        min: 4,
-        max: 7,
-        width: 300.0,
-        custom_width: true,
-        style: None,
-    }];
-    let (sheet, column) = (0, 4);
-    assert!(model.delete_columns(sheet, column, 1).is_ok());
-    let cols = &model.workbook.worksheets[0].cols;
-    assert_eq!(cols.len(), 1);
-    assert_eq!(
-        cols[0],
-        Col {
-            min: 4,
-            max: 6,
-            width: 300.0,
-            custom_width: true,
-            style: None
-        }
-    );
-}
-
-#[test]
-// Delete the last column in the range
-fn test_delete_last_column_width() {
-    let mut model = new_empty_model();
-    model.workbook.worksheets[0].cols = vec![Col {
-        min: 4,
-        max: 7,
-        width: 300.0,
-        custom_width: true,
-        style: None,
-    }];
-    let (sheet, column) = (0, 7);
-    assert!(model.delete_columns(sheet, column, 1).is_ok());
-    let cols = &model.workbook.worksheets[0].cols;
-    assert_eq!(cols.len(), 1);
-    assert_eq!(
-        cols[0],
-        Col {
-            min: 4,
-            max: 6,
-            width: 300.0,
-            custom_width: true,
-            style: None
-        }
-    );
-}
-
-#[test]
-// Deletes columns at the end
-fn test_delete_last_few_columns_width() {
-    let mut model = new_empty_model();
-    model.workbook.worksheets[0].cols = vec![Col {
-        min: 4,
-        max: 17,
-        width: 300.0,
-        custom_width: true,
-        style: None,
-    }];
-    let (sheet, column) = (0, 13);
-    assert!(model.delete_columns(sheet, column, 10).is_ok());
-    let cols = &model.workbook.worksheets[0].cols;
-    assert_eq!(cols.len(), 1);
-    assert_eq!(
-        cols[0],
-        Col {
-            min: 4,
-            max: 12,
-            width: 300.0,
-            custom_width: true,
-            style: None
-        }
-    );
-}
-
-#[test]
-fn test_delete_columns_non_overlapping_left() {
-    let mut model = new_empty_model();
-    model.workbook.worksheets[0].cols = vec![Col {
-        min: 10,
-        max: 17,
-        width: 300.0,
-        custom_width: true,
-        style: None,
-    }];
-    let (sheet, column) = (0, 3);
-    assert!(model.delete_columns(sheet, column, 4).is_ok());
-    let cols = &model.workbook.worksheets[0].cols;
-    assert_eq!(cols.len(), 1);
-    assert_eq!(
-        cols[0],
-        Col {
-            min: 6,
-            max: 13,
-            width: 300.0,
-            custom_width: true,
-            style: None
-        }
-    );
-}
-
-#[test]
-fn test_delete_columns_overlapping_left() {
-    let mut model = new_empty_model();
-    model.workbook.worksheets[0].cols = vec![Col {
-        min: 10,
-        max: 20,
-        width: 300.0,
-        custom_width: true,
-        style: None,
-    }];
-    let (sheet, column) = (0, 8);
-    assert!(model.delete_columns(sheet, column, 4).is_ok());
-    let cols = &model.workbook.worksheets[0].cols;
-    assert_eq!(cols.len(), 1);
-    assert_eq!(
-        cols[0],
-        Col {
-            min: 8,
-            max: 16,
-            width: 300.0,
-            custom_width: true,
-            style: None
-        }
-    );
-}
-
-#[test]
-fn test_delete_columns_non_overlapping_right() {
-    let mut model = new_empty_model();
-    model.workbook.worksheets[0].cols = vec![Col {
-        min: 10,
-        max: 17,
-        width: 300.0,
-        custom_width: true,
-        style: None,
-    }];
-    let (sheet, column) = (0, 23);
-    assert!(model.delete_columns(sheet, column, 4).is_ok());
-    let cols = &model.workbook.worksheets[0].cols;
-    assert_eq!(cols.len(), 1);
-    assert_eq!(
-        cols[0],
-        Col {
-            min: 10,
-            max: 17,
-            width: 300.0,
-            custom_width: true,
-            style: None
-        }
-    );
-}
-
-#[test]
-// deletes some columns in the middle of the range
-fn test_delete_middle_column_width() {
-    let mut model = new_empty_model();
-    // styled columns [4, 17]
-    model.workbook.worksheets[0].cols = vec![Col {
-        min: 4,
-        max: 17,
-        width: 300.0,
-        custom_width: true,
-        style: None,
-    }];
-
-    // deletes columns 10, 11, 12
-    let (sheet, column) = (0, 10);
-    assert!(model.delete_columns(sheet, column, 3).is_ok());
-    let cols = &model.workbook.worksheets[0].cols;
-    assert_eq!(cols.len(), 1);
-    assert_eq!(
-        cols[0],
-        Col {
-            min: 4,
-            max: 14,
-            width: 300.0,
-            custom_width: true,
-            style: None
-        }
-    );
-}
-
-#[test]
-// the range is inside the deleted columns
-fn delete_range_in_columns() {
-    let mut model = new_empty_model();
-    // styled columns [6, 10]
-    model.workbook.worksheets[0].cols = vec![Col {
-        min: 6,
-        max: 10,
-        width: 300.0,
-        custom_width: true,
-        style: None,
-    }];
-
-    // deletes columns [4, 17]
-    let (sheet, column) = (0, 4);
-    assert!(model.delete_columns(sheet, column, 8).is_ok());
-    let cols = &model.workbook.worksheets[0].cols;
-    assert_eq!(cols.len(), 0);
-}
-
-#[test]
-fn test_delete_columns_error() {
-    let mut model = new_empty_model();
-    let (sheet, column) = (0, 5);
-    assert!(model.delete_columns(sheet, column, -1).is_err());
-    assert!(model.delete_columns(sheet, column, 0).is_err());
-    assert!(model.delete_columns(sheet, column, 1).is_ok());
-}
-
 #[test]
 fn test_delete_rows() {
     let mut model = new_empty_model();

base/src/test/test_column_width.rs

@@ -23,10 +23,10 @@ fn test_column_width() {
         .unwrap();
     assert_eq!(model.workbook.worksheets[0].cols.len(), 3);
     let worksheet = model.workbook.worksheet(0).unwrap();
-    assert!((worksheet.get_column_width(1).unwrap() - DEFAULT_COLUMN_WIDTH).abs() < f64::EPSILON);
-    assert!((worksheet.get_column_width(2).unwrap() - 30.0).abs() < f64::EPSILON);
-    assert!((worksheet.get_column_width(3).unwrap() - DEFAULT_COLUMN_WIDTH).abs() < f64::EPSILON);
-    assert_eq!(model.get_cell_style_index(0, 23, 2), Ok(6));
+    assert!((worksheet.column_width(1).unwrap() - DEFAULT_COLUMN_WIDTH).abs() < f64::EPSILON);
+    assert!((worksheet.column_width(2).unwrap() - 30.0).abs() < f64::EPSILON);
+    assert!((worksheet.column_width(3).unwrap() - DEFAULT_COLUMN_WIDTH).abs() < f64::EPSILON);
+    assert_eq!(model.get_cell_style_index(0, 23, 2), 6);
 }
 
 #[test]
@@ -48,12 +48,10 @@ fn test_column_width_lower_edge() {
         .unwrap();
     assert_eq!(model.workbook.worksheets[0].cols.len(), 2);
     let worksheet = model.workbook.worksheet(0).unwrap();
-    assert!((worksheet.get_column_width(4).unwrap() - DEFAULT_COLUMN_WIDTH).abs() < f64::EPSILON);
-    assert!((worksheet.get_column_width(5).unwrap() - 30.0).abs() < f64::EPSILON);
-    assert!(
-        (worksheet.get_column_width(6).unwrap() - 10.0 * COLUMN_WIDTH_FACTOR).abs() < f64::EPSILON
-    );
-    assert_eq!(model.get_cell_style_index(0, 23, 5), Ok(1));
+    assert!((worksheet.column_width(4).unwrap() - DEFAULT_COLUMN_WIDTH).abs() < f64::EPSILON);
+    assert!((worksheet.column_width(5).unwrap() - 30.0).abs() < f64::EPSILON);
+    assert!((worksheet.column_width(6).unwrap() - 10.0 * COLUMN_WIDTH_FACTOR).abs() < f64::EPSILON);
+    assert_eq!(model.get_cell_style_index(0, 23, 5), 1);
 }
 
 #[test]
@@ -76,27 +74,9 @@ fn test_column_width_higher_edge() {
     assert_eq!(model.workbook.worksheets[0].cols.len(), 2);
     let worksheet = model.workbook.worksheet(0).unwrap();
     assert!(
-        (worksheet.get_column_width(15).unwrap() - 10.0 * COLUMN_WIDTH_FACTOR).abs() < f64::EPSILON
+        (worksheet.column_width(15).unwrap() - 10.0 * COLUMN_WIDTH_FACTOR).abs() < f64::EPSILON
     );
-    assert!((worksheet.get_column_width(16).unwrap() - 30.0).abs() < f64::EPSILON);
-    assert!((worksheet.get_column_width(17).unwrap() - DEFAULT_COLUMN_WIDTH).abs() < f64::EPSILON);
-    assert_eq!(model.get_cell_style_index(0, 23, 16), Ok(1));
-}
-
-#[test]
-fn test_column_width_negative() {
-    let mut model = new_empty_model();
-    let result = model
-        .workbook
-        .worksheet_mut(0)
-        .unwrap()
-        .set_column_width(16, -1.0);
-    assert_eq!(result, Err("Can not set a negative width: -1".to_string()));
-    assert_eq!(model.workbook.worksheets[0].cols.len(), 0);
-    let worksheet = model.workbook.worksheet(0).unwrap();
-    assert_eq!(
-        (worksheet.get_column_width(16).unwrap()),
-        DEFAULT_COLUMN_WIDTH
-    );
-    assert_eq!(model.get_cell_style_index(0, 23, 16), Ok(0));
+    assert!((worksheet.column_width(16).unwrap() - 30.0).abs() < f64::EPSILON);
+    assert!((worksheet.column_width(17).unwrap() - DEFAULT_COLUMN_WIDTH).abs() < f64::EPSILON);
+    assert_eq!(model.get_cell_style_index(0, 23, 16), 1);
 }

base/src/test/test_error_propagation.rs

@@ -1,5 +1,4 @@
 #![allow(clippy::unwrap_used)]
-#![allow(clippy::panic)]
 
 use crate::test::util::new_empty_model;
 use crate::types::Cell;

base/src/test/test_fn_formulatext.rs

@@ -1,44 +0,0 @@
-#![allow(clippy::unwrap_used)]
-
-use crate::test::util::new_empty_model;
-
-#[test]
-fn wrong_number_of_arguments() {
-    let mut model = new_empty_model();
-    model._set("A1", "=FORMULATEXT()");
-    model._set("A2", "=FORMULATEXT(\"B\",\"A\")");
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), *"#ERROR!");
-    assert_eq!(model._get_text("A2"), *"#ERROR!");
-}
-
-#[test]
-fn multi_sheet_ref() {
-    let mut model = new_empty_model();
-    model.new_sheet();
-    model._set("A1", "=FORMULATEXT(Sheet1!A1:Sheet2!A1)");
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), *"#ERROR!");
-}
-
-#[test]
-fn implicit_intersection() {
-    let mut model = new_empty_model();
-    model._set("A1", "=FORMULATEXT(C1:C2)");
-    model._set("A2", "=FORMULATEXT(D1:E1)");
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), *"#ERROR!");
-    assert_eq!(model._get_text("A2"), *"#ERROR!");
-}
-
-#[test]
-fn non_reference() {
-    let mut model = new_empty_model();
-    model._set("A1", "=FORMULATEXT(42)");
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), *"#ERROR!");
-}

base/src/test/test_fn_fv.rs

@@ -1,36 +0,0 @@
-#![allow(clippy::unwrap_used)]
-
-use crate::test::util::new_empty_model;
-
-#[test]
-fn computation() {
-    let i2 = "=-C2*(1+D2)^E2-F2*((D2+1)*((1+D2)^E2-1))/D2";
-
-    let mut model = new_empty_model();
-    model._set("C2", "1");
-    model._set("D2", "2");
-    model._set("E2", "3");
-    model._set("F2", "4");
-
-    model._set("I2", i2);
-
-    model.evaluate();
-
-    assert_eq!(model._get_text("I2"), "-183");
-    assert_eq!(model._get_formula("I2"), i2);
-}
-
-#[test]
-fn format_as_currency() {
-    let mut model = new_empty_model();
-    model._set("C2", "1");
-    model._set("D2", "2");
-    model._set("E2", "3");
-    model._set("F2", "4");
-
-    model._set("I2", "=FV(D2,E2,F2,C2,1)");
-
-    model.evaluate();
-
-    assert_eq!(model._get_text("I2"), "-$183.00");
-}

base/src/test/test_fn_or.rs

@@ -1,36 +0,0 @@
-#![allow(clippy::unwrap_used)]
-
-use crate::test::util::new_empty_model;
-
-#[test]
-fn fn_or() {
-    let mut model = new_empty_model();
-    model._set("A1", "=OR(1, 0)");
-    model._set("A2", "=OR(0, 0)");
-    model._set("A3", "=OR(true, false)");
-    model._set("A4", "=OR(false, false)");
-
-    model.evaluate();
-    assert_eq!(model._get_text("A1"), *"TRUE");
-    assert_eq!(model._get_text("A2"), *"FALSE");
-    assert_eq!(model._get_text("A3"), *"TRUE");
-    assert_eq!(model._get_text("A4"), *"FALSE");
-}
-
-#[test]
-fn fn_or_no_arguments() {
-    let mut model = new_empty_model();
-    model._set("A1", "=OR()");
-    model.evaluate();
-    assert_eq!(model._get_text("A1"), *"#ERROR!");
-}
-
-#[test]
-fn fn_or_missing_arguments() {
-    let mut model = new_empty_model();
-    model._set("A1", "=OR(,)");
-    model._set("A2", "=OR(,1)");
-    model.evaluate();
-    assert_eq!(model._get_text("A1"), *"FALSE");
-    assert_eq!(model._get_text("A2"), *"TRUE");
-}

base/src/test/test_fn_unicode.rs

@@ -1,63 +0,0 @@
-#![allow(clippy::unwrap_used)]
-
-use crate::test::util::new_empty_model;
-
-#[test]
-fn simple_cases() {
-    let mut model = new_empty_model();
-    model._set("A1", "=UNICODE(\"1,00\")");
-    model._set("A2", "=UNICODE(\"1\")");
-    model._set("A3", "=UNICODE(1)");
-    model._set("A4", "=UNICODE(\"T\")");
-    model._set("A5", "=UNICODE(\"TRUE\")");
-    model._set("A6", "=UNICODE(TRUE)");
-    model._set("A7", "=UNICODE(FALSE)");
-    model._set("A8", "=UNICODE(\"の\")");
-    model._set("A9", "=UNICODE(\" \")");
-
-    model._set("A10", "=_xlfn.UNICODE(\"T\")");
-
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), *"49");
-    assert_eq!(model._get_text("A2"), *"49");
-    assert_eq!(model._get_text("A3"), *"49");
-    assert_eq!(model._get_text("A4"), *"84");
-    assert_eq!(model._get_text("A5"), *"84");
-    assert_eq!(model._get_text("A6"), *"84");
-    assert_eq!(model._get_text("A7"), *"70");
-    assert_eq!(model._get_text("A8"), *"12398");
-    assert_eq!(model._get_text("A9"), *"32");
-    assert_eq!(model._get_text("A10"), *"84");
-}
-
-#[test]
-fn test_error_cases() {
-    let mut model = new_empty_model();
-    model._set("A1", "=UNICODE(\"\")");
-    model._set("A2", "=UNICODE(#CALC!)");
-    model._set("A3", "=UNICODE(#NAME?)");
-    model._set("A4", "=UNICODE(#VALUE!)");
-    model._set("A5", "=UNICODE(#REF!)");
-    model._set("A6", "=UNICODE(#DIV/0!)");
-
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), *"#VALUE!");
-    assert_eq!(model._get_text("A2"), *"#CALC!");
-    assert_eq!(model._get_text("A3"), *"#NAME?");
-    assert_eq!(model._get_text("A4"), *"#VALUE!");
-    assert_eq!(model._get_text("A5"), *"#REF!");
-    assert_eq!(model._get_text("A6"), *"#DIV/0!");
-}
-
-#[test]
-fn wrong_number_of_arguments() {
-    let mut model = new_empty_model();
-    model._set("A1", "=UNICODE()");
-    model._set("A2", "=UNICODE(\"B\",\"A\")");
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), *"#ERROR!");
-    assert_eq!(model._get_text("A2"), *"#ERROR!");
-}

base/src/test/test_frozen_rows_and_columns.rs

@@ -8,37 +8,34 @@ use crate::{
 #[test]
 fn test_empty_model() {
     let mut model = new_empty_model();
-    assert_eq!(model.get_frozen_rows_count(0), Ok(0));
-    assert_eq!(model.get_frozen_columns_count(0), Ok(0));
+    assert_eq!(model.get_frozen_rows(0), Ok(0));
+    assert_eq!(model.get_frozen_columns(0), Ok(0));
 
     let e = model.set_frozen_rows(0, 3);
     assert!(e.is_ok());
-    assert_eq!(model.get_frozen_rows_count(0), Ok(3));
-    assert_eq!(model.get_frozen_columns_count(0), Ok(0));
+    assert_eq!(model.get_frozen_rows(0), Ok(3));
+    assert_eq!(model.get_frozen_columns(0), Ok(0));
 
     let e = model.set_frozen_columns(0, 53);
     assert!(e.is_ok());
-    assert_eq!(model.get_frozen_rows_count(0), Ok(3));
-    assert_eq!(model.get_frozen_columns_count(0), Ok(53));
+    assert_eq!(model.get_frozen_rows(0), Ok(3));
+    assert_eq!(model.get_frozen_columns(0), Ok(53));
 
     // Set them back to zero
     let e = model.set_frozen_rows(0, 0);
     assert!(e.is_ok());
     let e = model.set_frozen_columns(0, 0);
     assert!(e.is_ok());
-    assert_eq!(model.get_frozen_rows_count(0), Ok(0));
-    assert_eq!(model.get_frozen_columns_count(0), Ok(0));
+    assert_eq!(model.get_frozen_rows(0), Ok(0));
+    assert_eq!(model.get_frozen_columns(0), Ok(0));
 }
 
 #[test]
 fn test_invalid_sheet() {
     let mut model = new_empty_model();
+    assert_eq!(model.get_frozen_rows(1), Err("Invalid sheet".to_string()));
     assert_eq!(
-        model.get_frozen_rows_count(1),
-        Err("Invalid sheet".to_string())
-    );
-    assert_eq!(
-        model.get_frozen_columns_count(3),
+        model.get_frozen_columns(3),
         Err("Invalid sheet".to_string())
     );
 

base/src/test/test_general.rs

@@ -1,7 +1,5 @@
 #![allow(clippy::unwrap_used)]
 
-use crate::constants::DEFAULT_ROW_HEIGHT;
-
 use crate::cell::CellValue;
 
 use crate::number_format::to_excel_precision_str;
@@ -19,9 +17,7 @@ fn test_empty_model() {
 #[test]
 fn test_model_simple_evaluation() {
     let mut model = new_empty_model();
-    model
-        .set_user_input(0, 1, 1, "= 1 + 3".to_string())
-        .unwrap();
+    model.set_user_input(0, 1, 1, "= 1 + 3".to_string());
     model.evaluate();
     let result = model._get_text_at(0, 1, 1);
     assert_eq!(result, *"4");
@@ -47,7 +43,7 @@ fn test_model_simple_evaluation_order() {
 #[test]
 fn test_model_invalid_formula() {
     let mut model = new_empty_model();
-    model.set_user_input(0, 1, 1, "= 1 +".to_string()).unwrap();
+    model.set_user_input(0, 1, 1, "= 1 +".to_string());
     model.evaluate();
     let result = model._get_text_at(0, 1, 1);
     assert_eq!(result, *"#ERROR!");
@@ -58,10 +54,8 @@ fn test_model_invalid_formula() {
 #[test]
 fn test_model_dependencies() {
     let mut model = new_empty_model();
-    model.set_user_input(0, 1, 1, "23".to_string()).unwrap(); // A1
-    model
-        .set_user_input(0, 1, 2, "= A1* 2-4".to_string())
-        .unwrap(); // B1
+    model.set_user_input(0, 1, 1, "23".to_string()); // A1
+    model.set_user_input(0, 1, 2, "= A1* 2-4".to_string()); // B1
     model.evaluate();
     let result = model._get_text_at(0, 1, 1);
     assert_eq!(result, *"23");
@@ -71,9 +65,7 @@ fn test_model_dependencies() {
     let result = model._get_formula("B1");
     assert_eq!(result, *"=A1*2-4");
 
-    model
-        .set_user_input(0, 2, 1, "=SUM(A1, B1)".to_string())
-        .unwrap(); // A2
+    model.set_user_input(0, 2, 1, "=SUM(A1, B1)".to_string()); // A2
     model.evaluate();
     let result = model._get_text_at(0, 2, 1);
     assert_eq!(result, *"65");
@@ -82,10 +74,8 @@ fn test_model_dependencies() {
 #[test]
 fn test_model_strings() {
     let mut model = new_empty_model();
-    model
-        .set_user_input(0, 1, 1, "Hello World".to_string())
-        .unwrap();
-    model.set_user_input(0, 1, 2, "=A1".to_string()).unwrap();
+    model.set_user_input(0, 1, 1, "Hello World".to_string());
+    model.set_user_input(0, 1, 2, "=A1".to_string());
     model.evaluate();
     let result = model._get_text_at(0, 1, 1);
     assert_eq!(result, *"Hello World");
@@ -115,15 +105,6 @@ fn test_set_row_height() {
     worksheet.set_row_height(5, 5.0).unwrap();
     let worksheet = model.workbook.worksheet(0).unwrap();
     assert!((5.0 - worksheet.row_height(5).unwrap()).abs() < f64::EPSILON);
-
-    let worksheet = model.workbook.worksheet_mut(0).unwrap();
-    let result = worksheet.set_row_height(6, -1.0);
-    assert_eq!(result, Err("Can not set a negative height: -1".to_string()));
-
-    assert_eq!(worksheet.row_height(6).unwrap(), DEFAULT_ROW_HEIGHT);
-
-    worksheet.set_row_height(6, 0.0).unwrap();
-    assert_eq!(worksheet.row_height(6).unwrap(), 0.0);
 }
 
 #[test]
@@ -171,35 +152,21 @@ fn test_to_excel_precision_str() {
 #[test]
 fn test_booleans() {
     let mut model = new_empty_model();
-    model.set_user_input(0, 1, 1, "true".to_string()).unwrap();
-    model.set_user_input(0, 2, 1, "TRUE".to_string()).unwrap();
-    model.set_user_input(0, 3, 1, "True".to_string()).unwrap();
-    model.set_user_input(0, 4, 1, "false".to_string()).unwrap();
-    model.set_user_input(0, 5, 1, "FALSE".to_string()).unwrap();
-    model.set_user_input(0, 6, 1, "False".to_string()).unwrap();
+    model.set_user_input(0, 1, 1, "true".to_string());
+    model.set_user_input(0, 2, 1, "TRUE".to_string());
+    model.set_user_input(0, 3, 1, "True".to_string());
+    model.set_user_input(0, 4, 1, "false".to_string());
+    model.set_user_input(0, 5, 1, "FALSE".to_string());
+    model.set_user_input(0, 6, 1, "False".to_string());
 
-    model
-        .set_user_input(0, 1, 2, "=ISLOGICAL(A1)".to_string())
-        .unwrap();
-    model
-        .set_user_input(0, 2, 2, "=ISLOGICAL(A2)".to_string())
-        .unwrap();
-    model
-        .set_user_input(0, 3, 2, "=ISLOGICAL(A3)".to_string())
-        .unwrap();
-    model
-        .set_user_input(0, 4, 2, "=ISLOGICAL(A4)".to_string())
-        .unwrap();
-    model
-        .set_user_input(0, 5, 2, "=ISLOGICAL(A5)".to_string())
-        .unwrap();
-    model
-        .set_user_input(0, 6, 2, "=ISLOGICAL(A6)".to_string())
-        .unwrap();
+    model.set_user_input(0, 1, 2, "=ISLOGICAL(A1)".to_string());
+    model.set_user_input(0, 2, 2, "=ISLOGICAL(A2)".to_string());
+    model.set_user_input(0, 3, 2, "=ISLOGICAL(A3)".to_string());
+    model.set_user_input(0, 4, 2, "=ISLOGICAL(A4)".to_string());
+    model.set_user_input(0, 5, 2, "=ISLOGICAL(A5)".to_string());
+    model.set_user_input(0, 6, 2, "=ISLOGICAL(A6)".to_string());
 
-    model
-        .set_user_input(0, 1, 5, "=IF(false, True, FALSe)".to_string())
-        .unwrap();
+    model.set_user_input(0, 1, 5, "=IF(false, True, FALSe)".to_string());
 
     model.evaluate();
 
@@ -224,19 +191,19 @@ fn test_booleans() {
 #[test]
 fn test_set_cell_style() {
     let mut model = new_empty_model();
-    let mut style = model.get_style_for_cell(0, 1, 1).unwrap();
+    let mut style = model.get_style_for_cell(0, 1, 1);
     assert!(!style.font.b);
 
     style.font.b = true;
     assert!(model.set_cell_style(0, 1, 1, &style).is_ok());
 
-    let mut style = model.get_style_for_cell(0, 1, 1).unwrap();
+    let mut style = model.get_style_for_cell(0, 1, 1);
     assert!(style.font.b);
 
     style.font.b = false;
     assert!(model.set_cell_style(0, 1, 1, &style).is_ok());
 
-    let style = model.get_style_for_cell(0, 1, 1).unwrap();
+    let style = model.get_style_for_cell(0, 1, 1);
     assert!(!style.font.b);
 }
 
@@ -244,21 +211,21 @@ fn test_set_cell_style() {
 fn test_copy_cell_style() {
     let mut model = new_empty_model();
 
-    let mut style = model.get_style_for_cell(0, 1, 1).unwrap();
+    let mut style = model.get_style_for_cell(0, 1, 1);
     style.font.b = true;
     assert!(model.set_cell_style(0, 1, 1, &style).is_ok());
 
-    let mut style = model.get_style_for_cell(0, 1, 2).unwrap();
+    let mut style = model.get_style_for_cell(0, 1, 2);
     style.font.i = true;
     assert!(model.set_cell_style(0, 1, 2, &style).is_ok());
 
     assert!(model.copy_cell_style((0, 1, 1), (0, 1, 2)).is_ok());
 
-    let style = model.get_style_for_cell(0, 1, 1).unwrap();
+    let style = model.get_style_for_cell(0, 1, 1);
     assert!(style.font.b);
     assert!(!style.font.i);
 
-    let style = model.get_style_for_cell(0, 1, 2).unwrap();
+    let style = model.get_style_for_cell(0, 1, 2);
     assert!(style.font.b);
     assert!(!style.font.i);
 }
@@ -267,15 +234,15 @@ fn test_copy_cell_style() {
 fn test_get_cell_style_index() {
     let mut model = new_empty_model();
 
-    let mut style = model.get_style_for_cell(0, 1, 1).unwrap();
-    let style_index = model.get_cell_style_index(0, 1, 1).unwrap();
+    let mut style = model.get_style_for_cell(0, 1, 1);
+    let style_index = model.get_cell_style_index(0, 1, 1);
     assert_eq!(style_index, 0);
     assert!(!style.font.b);
 
     style.font.b = true;
     assert!(model.set_cell_style(0, 1, 1, &style).is_ok());
 
-    let style_index = model.get_cell_style_index(0, 1, 1).unwrap();
+    let style_index = model.get_cell_style_index(0, 1, 1);
     assert_eq!(style_index, 1);
 }
 
@@ -283,29 +250,29 @@ fn test_get_cell_style_index() {
 fn test_model_set_cells_with_values_styles() {
     let mut model = new_empty_model();
     // Inputs
-    model.set_user_input(0, 1, 1, "21".to_string()).unwrap(); // A1
-    model.set_user_input(0, 2, 1, "2".to_string()).unwrap(); // A2
+    model.set_user_input(0, 1, 1, "21".to_string()); // A1
+    model.set_user_input(0, 2, 1, "2".to_string()); // A2
 
-    let style_index = model.get_cell_style_index(0, 1, 1).unwrap();
+    let style_index = model.get_cell_style_index(0, 1, 1);
     assert_eq!(style_index, 0);
-    let mut style = model.get_style_for_cell(0, 1, 1).unwrap();
+    let mut style = model.get_style_for_cell(0, 1, 1);
     style.font.b = true;
     assert!(model.set_cell_style(0, 1, 1, &style).is_ok());
     assert!(model.set_cell_style(0, 2, 1, &style).is_ok());
-    let style_index = model.get_cell_style_index(0, 1, 1).unwrap();
+    let style_index = model.get_cell_style_index(0, 1, 1);
     assert_eq!(style_index, 1);
-    let style_index = model.get_cell_style_index(0, 2, 1).unwrap();
+    let style_index = model.get_cell_style_index(0, 2, 1);
     assert_eq!(style_index, 1);
 
-    model.update_cell_with_number(0, 1, 2, 1.0).unwrap();
-    model.update_cell_with_number(0, 2, 1, 2.0).unwrap();
+    model.update_cell_with_number(0, 1, 2, 1.0);
+    model.update_cell_with_number(0, 2, 1, 2.0);
 
     model.evaluate();
 
     // Styles are not modified
-    let style_index = model.get_cell_style_index(0, 1, 1).unwrap();
+    let style_index = model.get_cell_style_index(0, 1, 1);
     assert_eq!(style_index, 1);
-    let style_index = model.get_cell_style_index(0, 2, 1).unwrap();
+    let style_index = model.get_cell_style_index(0, 2, 1);
     assert_eq!(style_index, 1);
 }
 
@@ -313,20 +280,20 @@ fn test_model_set_cells_with_values_styles() {
 fn test_style_fmt_id() {
     let mut model = new_empty_model();
 
-    let mut style = model.get_style_for_cell(0, 1, 1).unwrap();
+    let mut style = model.get_style_for_cell(0, 1, 1);
     style.num_fmt = "#.##".to_string();
     assert!(model.set_cell_style(0, 1, 1, &style).is_ok());
-    let style = model.get_style_for_cell(0, 1, 1).unwrap();
+    let style = model.get_style_for_cell(0, 1, 1);
     assert_eq!(style.num_fmt, "#.##");
 
-    let mut style = model.get_style_for_cell(0, 10, 1).unwrap();
+    let mut style = model.get_style_for_cell(0, 10, 1);
     style.num_fmt = "$$#,##0.0000".to_string();
     assert!(model.set_cell_style(0, 10, 1, &style).is_ok());
-    let style = model.get_style_for_cell(0, 10, 1).unwrap();
+    let style = model.get_style_for_cell(0, 10, 1);
     assert_eq!(style.num_fmt, "$$#,##0.0000");
 
     // Make sure old style is not touched
-    let style = model.get_style_for_cell(0, 1, 1).unwrap();
+    let style = model.get_style_for_cell(0, 1, 1);
     assert_eq!(style.num_fmt, "#.##");
 }
 
@@ -390,13 +357,9 @@ fn set_input_autocomplete() {
     let mut model = new_empty_model();
     model._set("A1", "1");
     model._set("A2", "2");
-    model
-        .set_user_input(0, 3, 1, "=SUM(A1:A2".to_string())
-        .unwrap();
+    model.set_user_input(0, 3, 1, "=SUM(A1:A2".to_string());
     // This will fail anyway
-    model
-        .set_user_input(0, 4, 1, "=SUM(A1*".to_string())
-        .unwrap();
+    model.set_user_input(0, 4, 1, "=SUM(A1*".to_string());
     model.evaluate();
 
     assert_eq!(model._get_formula("A3"), "=SUM(A1:A2)");
@@ -442,17 +405,17 @@ fn test_get_formatted_cell_value() {
     model._set("A5", "123.456");
 
     // change A5 format
-    let mut style = model.get_style_for_cell(0, 5, 1).unwrap();
+    let mut style = model.get_style_for_cell(0, 5, 1);
     style.num_fmt = "$#,##0.00".to_string();
     model.set_cell_style(0, 5, 1, &style).unwrap();
 
     model.evaluate();
 
-    assert_eq!(model.get_formatted_cell_value(0, 1, 1).unwrap(), "foobar");
-    assert_eq!(model.get_formatted_cell_value(0, 2, 1).unwrap(), "TRUE");
-    assert_eq!(model.get_formatted_cell_value(0, 3, 1).unwrap(), "");
-    assert_eq!(model.get_formatted_cell_value(0, 4, 1).unwrap(), "123.456");
-    assert_eq!(model.get_formatted_cell_value(0, 5, 1).unwrap(), "$123.46");
+    assert_eq!(model.formatted_cell_value(0, 1, 1).unwrap(), "foobar");
+    assert_eq!(model.formatted_cell_value(0, 2, 1).unwrap(), "TRUE");
+    assert_eq!(model.formatted_cell_value(0, 3, 1).unwrap(), "");
+    assert_eq!(model.formatted_cell_value(0, 4, 1).unwrap(), "123.456");
+    assert_eq!(model.formatted_cell_value(0, 5, 1).unwrap(), "$123.46");
 }
 
 #[test]
@@ -463,20 +426,20 @@ fn test_cell_formula() {
     model.evaluate();
 
     assert_eq!(
-        model.get_cell_formula(0, 1, 1), // A1
+        model.cell_formula(0, 1, 1), // A1
         Ok(Some("=1+2+3".to_string())),
     );
     assert_eq!(
-        model.get_cell_formula(0, 2, 1), // A2
+        model.cell_formula(0, 2, 1), // A2
         Ok(None),
     );
     assert_eq!(
-        model.get_cell_formula(0, 3, 1), // A3 - empty cell
+        model.cell_formula(0, 3, 1), // A3 - empty cell
         Ok(None),
     );
 
     assert_eq!(
-        model.get_cell_formula(42, 1, 1),
+        model.cell_formula(42, 1, 1),
         Err("Invalid sheet index".to_string()),
     );
 }
@@ -490,16 +453,16 @@ fn test_xlfn() {
     model.evaluate();
     // Only modern formulas strip the '_xlfn.'
     assert_eq!(
-        model.get_cell_formula(0, 1, 1).unwrap(),
+        model.cell_formula(0, 1, 1).unwrap(),
         Some("=_xlfn.SIN(1)".to_string())
     );
     // unknown formulas keep the '_xlfn.' prefix
     assert_eq!(
-        model.get_cell_formula(0, 2, 1).unwrap(),
+        model.cell_formula(0, 2, 1).unwrap(),
         Some("=_xlfn.SINY(1)".to_string())
     );
     assert_eq!(
-        model.get_cell_formula(0, 3, 1).unwrap(),
+        model.cell_formula(0, 3, 1).unwrap(),
         Some("=CONCAT(3,4)".to_string())
     );
 }
@@ -511,11 +474,11 @@ fn test_letter_case() {
     model._set("A2", "=sIn(2)");
     model.evaluate();
     assert_eq!(
-        model.get_cell_formula(0, 1, 1).unwrap(),
+        model.cell_formula(0, 1, 1).unwrap(),
         Some("=SIN(1)".to_string())
     );
     assert_eq!(
-        model.get_cell_formula(0, 2, 1).unwrap(),
+        model.cell_formula(0, 2, 1).unwrap(),
         Some("=SIN(2)".to_string())
     );
 }

base/src/test/test_geomean.rs

@@ -1,27 +0,0 @@
-#![allow(clippy::unwrap_used)]
-
-use crate::test::util::new_empty_model;
-
-#[test]
-fn test_fn_geomean_arguments() {
-    let mut model = new_empty_model();
-    model._set("A1", "=GEOMEAN()");
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), *"#ERROR!");
-}
-
-#[test]
-fn test_fn_geomean_minimal() {
-    let mut model = new_empty_model();
-    model._set("B1", "1");
-    model._set("B2", "2");
-    model._set("B3", "3");
-    model._set("B4", "'2");
-    // B5 is empty
-    model._set("B6", "true");
-    model._set("A1", "=GEOMEAN(B1:B6)");
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), *"1.817120593");
-}

base/src/test/test_get_cell_content.rs

@@ -5,12 +5,8 @@ use crate::test::util::new_empty_model;
 #[test]
 fn test_formulas() {
     let mut model = new_empty_model();
-    model
-        .set_user_input(0, 1, 1, "$100.348".to_string())
-        .unwrap();
-    model
-        .set_user_input(0, 1, 2, "=ISNUMBER(A1)".to_string())
-        .unwrap();
+    model.set_user_input(0, 1, 1, "$100.348".to_string());
+    model.set_user_input(0, 1, 2, "=ISNUMBER(A1)".to_string());
 
     model.evaluate();
 

base/src/test/test_issue_155.rs

@@ -1,14 +0,0 @@
-#![allow(clippy::unwrap_used)]
-
-use crate::test::util::new_empty_model;
-
-#[test]
-fn issue_155() {
-    let mut model = new_empty_model();
-    model._set("A1", "1");
-    model._set("A2", "2");
-    model._set("B2", "=A$1:A2");
-    model.evaluate();
-
-    assert_eq!(model._get_formula("B2"), "=A$1:A2".to_string());
-}

base/src/test/test_metadata.rs

@@ -1,11 +1,9 @@
-#![allow(clippy::unwrap_used)]
-
 use crate::test::util::new_empty_model;
 
 #[test]
 fn test_metadata_new_model() {
     let mut model = new_empty_model();
-    model.set_user_input(0, 1, 1, "5.5".to_string()).unwrap();
+    model.set_user_input(0, 1, 1, "5.5".to_string());
     model.evaluate();
     let metadata = &model.workbook.metadata;
     assert_eq!(metadata.application, "IronCalc Sheets");

base/src/test/test_model_delete_cell.rs

@@ -2,22 +2,22 @@
 use crate::test::util::new_empty_model;
 
 #[test]
-fn test_cell_clear_all_non_existing_sheet() {
+fn test_delete_cell_non_existing_sheet() {
     let mut model = new_empty_model();
     assert_eq!(
-        model.cell_clear_all(13, 1, 1),
+        model.delete_cell(13, 1, 1),
         Err("Invalid sheet index".to_string())
     );
 }
 
 #[test]
-fn test_cell_clear_all_unset_cell() {
+fn test_delete_cell_unset_cell() {
     let mut model = new_empty_model();
-    assert!(model.cell_clear_all(0, 1, 1).is_ok());
+    assert!(model.delete_cell(0, 1, 1).is_ok());
 }
 
 #[test]
-fn test_cell_clear_all_with_value() {
+fn test_delete_cell_with_value() {
     let mut model = new_empty_model();
     model._set("A1", "hello");
     model.evaluate();
@@ -25,7 +25,7 @@ fn test_cell_clear_all_with_value() {
     assert_eq!(model._get_text_at(0, 1, 1), "hello");
     assert_eq!(model.is_empty_cell(0, 1, 1), Ok(false));
 
-    model.cell_clear_all(0, 1, 1).unwrap();
+    model.delete_cell(0, 1, 1).unwrap();
     model.evaluate();
 
     assert_eq!(model._get_text_at(0, 1, 1), "");
@@ -33,7 +33,7 @@ fn test_cell_clear_all_with_value() {
 }
 
 #[test]
-fn test_cell_clear_all_referenced_elsewhere() {
+fn test_delete_cell_referenced_elsewhere() {
     let mut model = new_empty_model();
     model._set("A1", "35");
     model._set("A2", "=2*A1");
@@ -44,7 +44,7 @@ fn test_cell_clear_all_referenced_elsewhere() {
     assert_eq!(model.is_empty_cell(0, 1, 1), Ok(false));
     assert_eq!(model.is_empty_cell(0, 2, 1), Ok(false));
 
-    model.cell_clear_all(0, 1, 1).unwrap();
+    model.delete_cell(0, 1, 1).unwrap();
     model.evaluate();
 
     assert_eq!(model._get_text_at(0, 1, 1), "");

base/src/test/test_model_is_empty_cell.rs

@@ -14,11 +14,9 @@ fn test_is_empty_cell_non_existing_sheet() {
 fn test_is_empty_cell() {
     let mut model = new_empty_model();
     assert!(model.is_empty_cell(0, 3, 1).unwrap());
-    model
-        .set_user_input(0, 3, 1, "Hello World".to_string())
-        .unwrap();
+    model.set_user_input(0, 3, 1, "Hello World".to_string());
     assert!(!model.is_empty_cell(0, 3, 1).unwrap());
-    model.cell_clear_contents(0, 3, 1).unwrap();
+    model.set_cell_empty(0, 3, 1).unwrap();
     assert!(model.is_empty_cell(0, 3, 1).unwrap());
 }
 

base/src/test/test_model_set_cell_empty.rs

@@ -2,25 +2,25 @@
 use crate::test::util::new_empty_model;
 
 #[test]
-fn test_cell_clear_contents_non_existing_sheet() {
+fn test_set_cell_empty_non_existing_sheet() {
     let mut model = new_empty_model();
     assert_eq!(
-        model.cell_clear_contents(13, 1, 1),
+        model.set_cell_empty(13, 1, 1),
         Err("Invalid sheet index".to_string())
     );
 }
 
 #[test]
-fn test_cell_clear_contents_unset_cell() {
+fn test_set_cell_empty_unset_cell() {
     let mut model = new_empty_model();
-    model.cell_clear_contents(0, 1, 1).unwrap();
+    model.set_cell_empty(0, 1, 1).unwrap();
     assert_eq!(model.is_empty_cell(0, 1, 1), Ok(true));
     model.evaluate();
     assert_eq!(model._get_text_at(0, 1, 1), "");
 }
 
 #[test]
-fn test_cell_clear_contents_with_value() {
+fn test_set_cell_empty_with_value() {
     let mut model = new_empty_model();
     model._set("A1", "hello");
     model.evaluate();
@@ -28,7 +28,7 @@ fn test_cell_clear_contents_with_value() {
     assert_eq!(model._get_text_at(0, 1, 1), "hello");
     assert_eq!(model.is_empty_cell(0, 1, 1), Ok(false));
 
-    model.cell_clear_contents(0, 1, 1).unwrap();
+    model.set_cell_empty(0, 1, 1).unwrap();
     model.evaluate();
 
     assert_eq!(model._get_text_at(0, 1, 1), "");
@@ -36,7 +36,7 @@ fn test_cell_clear_contents_with_value() {
 }
 
 #[test]
-fn test_cell_clear_contents_referenced_elsewhere() {
+fn test_set_cell_empty_referenced_elsewhere() {
     let mut model = new_empty_model();
     model._set("A1", "35");
     model._set("A2", "=2*A1");
@@ -47,7 +47,7 @@ fn test_cell_clear_contents_referenced_elsewhere() {
     assert_eq!(model.is_empty_cell(0, 1, 1), Ok(false));
     assert_eq!(model.is_empty_cell(0, 2, 1), Ok(false));
 
-    model.cell_clear_contents(0, 1, 1).unwrap();
+    model.set_cell_empty(0, 1, 1).unwrap();
     model.evaluate();
 
     assert_eq!(model._get_text_at(0, 1, 1), "");

base/src/test/test_quote_prefix.rs

@@ -57,12 +57,12 @@ fn test_quote_prefix_enter() {
     model._set("A2", "=ISTEXT(A1)");
     model.evaluate();
     // We introduce a value with a "quote prefix" index
-    model.set_user_input(0, 1, 3, "'=A1".to_string()).unwrap();
+    model.set_user_input(0, 1, 3, "'=A1".to_string());
     model.evaluate();
     assert_eq!(model._get_text("C1"), *"=A1");
 
     // But if we enter with a quote_prefix but without the "'" it won't be quote_prefix
-    model.set_user_input(0, 1, 4, "=A1".to_string()).unwrap();
+    model.set_user_input(0, 1, 4, "=A1".to_string());
     model.evaluate();
     assert_eq!(model._get_text("D1"), *"123");
 }
@@ -75,7 +75,7 @@ fn test_quote_prefix_reenter() {
     model.evaluate();
     assert_eq!(model._get_text("A2"), *"TRUE");
     // We introduce a value with a "quote prefix" index
-    model.set_user_input(0, 1, 1, "123".to_string()).unwrap();
+    model.set_user_input(0, 1, 1, "123".to_string());
     model.evaluate();
     assert_eq!(model._get_text("A2"), *"FALSE");
 }
@@ -83,7 +83,7 @@ fn test_quote_prefix_reenter() {
 #[test]
 fn test_update_cell_quote() {
     let mut model = new_empty_model();
-    model.update_cell_with_text(0, 1, 1, "= 1 + 3").unwrap();
+    model.update_cell_with_text(0, 1, 1, "= 1 + 3");
     model.evaluate();
     assert_eq!(model._get_text("A1"), *"= 1 + 3");
     assert!(!model._has_formula("A1"));
@@ -92,12 +92,12 @@ fn test_update_cell_quote() {
 #[test]
 fn test_update_quote_prefix_reenter() {
     let mut model = new_empty_model();
-    model.update_cell_with_text(0, 1, 1, "123").unwrap();
+    model.update_cell_with_text(0, 1, 1, "123");
     model._set("A2", "=ISTEXT(A1)");
     model.evaluate();
     assert_eq!(model._get_text("A2"), *"TRUE");
     // We reenter as a number
-    model.update_cell_with_number(0, 1, 1, 123.0).unwrap();
+    model.update_cell_with_number(0, 1, 1, 123.0);
     model.evaluate();
     assert_eq!(model._get_text("A2"), *"FALSE");
 }
@@ -105,12 +105,12 @@ fn test_update_quote_prefix_reenter() {
 #[test]
 fn test_update_quote_prefix_reenter_bool() {
     let mut model = new_empty_model();
-    model.update_cell_with_text(0, 1, 1, "TRUE").unwrap();
+    model.update_cell_with_text(0, 1, 1, "TRUE");
     model._set("A2", "=ISTEXT(A1)");
     model.evaluate();
     assert_eq!(model._get_text("A2"), *"TRUE");
     // We enter a bool
-    model.update_cell_with_bool(0, 1, 1, true).unwrap();
+    model.update_cell_with_bool(0, 1, 1, true);
     model.evaluate();
     assert_eq!(model._get_text("A2"), *"FALSE");
 }
@@ -118,29 +118,29 @@ fn test_update_quote_prefix_reenter_bool() {
 #[test]
 fn test_update_quote_prefix_reenter_text() {
     let mut model = new_empty_model();
-    model.update_cell_with_text(0, 1, 1, "123").unwrap();
+    model.update_cell_with_text(0, 1, 1, "123");
     model._set("A2", "=ISTEXT(A1)");
     model.evaluate();
     assert_eq!(model._get_text("A2"), *"TRUE");
-    assert!(model.get_style_for_cell(0, 1, 1).unwrap().quote_prefix);
+    assert!(model.get_style_for_cell(0, 1, 1).quote_prefix);
     // We enter a string
-    model.update_cell_with_text(0, 1, 1, "Hello").unwrap();
+    model.update_cell_with_text(0, 1, 1, "Hello");
     model.evaluate();
     assert_eq!(model._get_text("A2"), *"TRUE");
-    assert!(!model.get_style_for_cell(0, 1, 1).unwrap().quote_prefix);
+    assert!(!model.get_style_for_cell(0, 1, 1).quote_prefix);
 }
 
 #[test]
 fn test_update_quote_prefix_reenter_text_2() {
     let mut model = new_empty_model();
-    model.update_cell_with_text(0, 1, 1, "123").unwrap();
+    model.update_cell_with_text(0, 1, 1, "123");
     model._set("A2", "=ISTEXT(A1)");
     model.evaluate();
     assert_eq!(model._get_text("A2"), *"TRUE");
-    assert!(model.get_style_for_cell(0, 1, 1).unwrap().quote_prefix);
+    assert!(model.get_style_for_cell(0, 1, 1).quote_prefix);
     // We enter another number
-    model.update_cell_with_text(0, 1, 1, "42").unwrap();
+    model.update_cell_with_text(0, 1, 1, "42");
     model.evaluate();
     assert_eq!(model._get_text("A2"), *"TRUE");
-    assert!(model.get_style_for_cell(0, 1, 1).unwrap().quote_prefix);
+    assert!(model.get_style_for_cell(0, 1, 1).quote_prefix);
 }

base/src/test/test_set_functions_error_handling.rs

@@ -1,451 +0,0 @@
-#![allow(clippy::unwrap_used)]
-
-use crate::{expressions::token, test::util::new_empty_model, types::Cell};
-
-#[test]
-fn test_update_cell_with_text() {
-    let mut model = new_empty_model();
-
-    // Below are safe inputs
-    model.set_user_input(0, 1, 1, "Hello".to_string()).unwrap();
-
-    // Now testing all the possible error scenarios
-
-    // Case1 : Invalid sheet
-    let update_result = model.update_cell_with_text(1, 1, 1, "new value");
-    assert_eq!(update_result, Err("Invalid sheet index".to_string()));
-
-    // Case2 : Invalid Row
-    let update_result = model.update_cell_with_text(0, 0, 1, "new value");
-    assert_eq!(update_result, Err("Incorrect row or column".to_string()));
-
-    // Case3 : Invalid Column
-    let update_result = model.update_cell_with_text(0, 1, 1048579, "new value");
-    assert_eq!(update_result, Err("Incorrect row or column".to_string()));
-}
-
-#[test]
-fn test_update_cell_with_number() {
-    let mut model = new_empty_model();
-
-    // Below are safe inputs
-    model.update_cell_with_number(0, 1, 1, 10.0).unwrap();
-
-    // Now testing all the possible error scenarios
-
-    // Case1 : Invalid sheet
-    let update_result = model.update_cell_with_number(1, 1, 1, 20.0);
-    assert_eq!(update_result, Err("Invalid sheet index".to_string()));
-
-    // Case2 : Invalid Row
-    let update_result = model.update_cell_with_number(0, 0, 1, 20.0);
-    assert_eq!(update_result, Err("Incorrect row or column".to_string()));
-
-    // Case3 : Invalid Column
-    let update_result = model.update_cell_with_number(0, 1, 1048579, 20.0);
-    assert_eq!(update_result, Err("Incorrect row or column".to_string()));
-}
-
-#[test]
-fn test_update_cell_with_bool() {
-    let mut model = new_empty_model();
-
-    // Below are safe inputs
-    model.update_cell_with_bool(0, 1, 1, true).unwrap();
-
-    // Now testing all the possible error scenarios
-
-    // Case1 : Invalid sheet
-    let update_result = model.update_cell_with_bool(1, 1, 1, false);
-    assert_eq!(update_result, Err("Invalid sheet index".to_string()));
-
-    // Case2 : Invalid Row
-    let update_result = model.update_cell_with_bool(0, 0, 1, false);
-    assert_eq!(update_result, Err("Incorrect row or column".to_string()));
-
-    // Case3 : Invalid Column
-    let update_result = model.update_cell_with_bool(0, 1, 1048579, false);
-    assert_eq!(update_result, Err("Incorrect row or column".to_string()));
-}
-
-#[test]
-fn test_update_cell_with_formula() {
-    let mut model = new_empty_model();
-
-    // Below are safe inputs
-    model.update_cell_with_number(0, 1, 1, 10.0).unwrap();
-    model
-        .update_cell_with_formula(0, 1, 2, "=A1*2".to_string())
-        .unwrap();
-
-    model.evaluate();
-    // Now testing all the possible error scenarios
-
-    // Case1 : Invalid sheet
-    let update_result = model.update_cell_with_formula(1, 1, 2, "=A1*2".to_string());
-    assert_eq!(update_result, Err("Invalid sheet index".to_string()));
-
-    // Case2 : Invalid Row
-    let update_result = model.update_cell_with_formula(0, 0, 2, "=A1*2".to_string());
-    assert_eq!(update_result, Err("Incorrect row or column".to_string()));
-
-    // Case3 : Invalid Column
-    let update_result = model.update_cell_with_formula(0, 1, 1048579, "=A1*2".to_string());
-    assert_eq!(update_result, Err("Incorrect row or column".to_string()));
-}
-
-#[test]
-fn test_set_user_input() {
-    let mut model = new_empty_model();
-
-    // Below are safe inputs
-    model.update_cell_with_number(0, 1, 1, 10.0).unwrap();
-    model.evaluate();
-    // Now testing all the possible error scenarios
-
-    // Case1 : Invalid sheet
-    let update_result = model.set_user_input(1, 1, 2, "20.0".to_string());
-    assert_eq!(update_result, Err("Invalid sheet index".to_string()));
-
-    // Case2 : Invalid Row
-    let update_result = model.set_user_input(0, 0, 2, "20.0".to_string());
-    assert_eq!(update_result, Err("Incorrect row or column".to_string()));
-
-    // Case3 : Invalid Column
-    let update_result = model.set_user_input(0, 1, 1048579, "20.0".to_string());
-    assert_eq!(update_result, Err("Incorrect row or column".to_string()));
-}
-
-#[test]
-fn test_get_style_for_cell() {
-    let mut model = new_empty_model();
-
-    // Below are safe inputs
-    model.update_cell_with_number(0, 1, 1, 10.0).unwrap();
-    model.evaluate();
-    // Now testing all the possible error scenarios
-
-    // Case1 : Invalid sheet
-    let update_result = model.get_style_for_cell(1, 1, 2);
-    assert_eq!(update_result, Err("Invalid sheet index".to_string()));
-
-    // ATTENTION : get_cell_style_index tries to get cell using row and col
-    // if we invalid row or column is given, it will return index 0.
-
-    // Case2 : Invalid Row
-    let update_result = model.get_style_for_cell(0, 0, 2);
-    assert!(update_result.is_ok());
-
-    // Case3 : Invalid Column
-    let update_result = model.get_style_for_cell(0, 1, 1048579);
-    assert!(update_result.is_ok());
-}
-
-#[test]
-fn test_get_cell_style_index() {
-    let mut model = new_empty_model();
-
-    // Below are safe inputs
-    model.update_cell_with_number(0, 1, 1, 10.0).unwrap();
-    model.evaluate();
-    // Now testing all the possible error scenarios
-
-    // Case1 : Invalid sheet
-    let update_result = model.get_cell_style_index(1, 1, 2);
-    assert_eq!(update_result, Err("Invalid sheet index".to_string()));
-
-    // ATTENTION : get_cell_style_index tries to get cell using row and col
-    // if we invalid row or column is given, it will return index 0.
-
-    // Case2 : Invalid Row
-    let update_result = model.get_cell_style_index(0, 0, 2);
-    assert_eq!(update_result, Ok(0));
-
-    // Case3 : Invalid Column
-    let update_result = model.get_cell_style_index(0, 1, 1048579);
-    assert_eq!(update_result, Ok(0));
-}
-
-#[test]
-fn test_worksheet_update_cell() {
-    let mut model = new_empty_model();
-
-    // Now testing all the possible error scenarios
-
-    // Case1 : Invalid Row
-    let update_result =
-        model
-            .workbook
-            .worksheet_mut(0)
-            .unwrap()
-            .update_cell(0, 1, Cell::new_number(10.0, 1));
-    assert_eq!(update_result, Err("Incorrect row or column".to_string()));
-
-    // Case2 : Invalid Column
-    let update_result =
-        model
-            .workbook
-            .worksheet_mut(0)
-            .unwrap()
-            .update_cell(1, 1048579, Cell::new_number(10.0, 1));
-    assert_eq!(update_result, Err("Incorrect row or column".to_string()));
-}
-
-#[test]
-fn test_worksheet_set_cell_style() {
-    let mut model = new_empty_model();
-
-    // Now testing all the possible error scenarios
-
-    // Case1 : Invalid Row
-    let update_result = model
-        .workbook
-        .worksheet_mut(0)
-        .unwrap()
-        .set_cell_style(0, 1, 1);
-    assert_eq!(update_result, Err("Incorrect row or column".to_string()));
-
-    // Case2 : Invalid Column
-    let update_result = model
-        .workbook
-        .worksheet_mut(0)
-        .unwrap()
-        .set_cell_style(1, 1048579, 1);
-    assert_eq!(update_result, Err("Incorrect row or column".to_string()));
-}
-
-#[test]
-fn test_worksheet_set_cell_with_formula() {
-    let mut model = new_empty_model();
-
-    // Now testing all the possible error scenarios
-
-    // Case1 : Invalid Row
-    let update_result = model
-        .workbook
-        .worksheet_mut(0)
-        .unwrap()
-        .set_cell_with_formula(0, 1, 1, 1);
-    assert_eq!(update_result, Err("Incorrect row or column".to_string()));
-
-    // Case2 : Invalid Column
-    let update_result = model
-        .workbook
-        .worksheet_mut(0)
-        .unwrap()
-        .set_cell_with_formula(1, 1048579, 1, 1);
-    assert_eq!(update_result, Err("Incorrect row or column".to_string()));
-}
-
-#[test]
-fn test_worksheet_set_cell_with_number() {
-    let mut model = new_empty_model();
-
-    // Now testing all the possible error scenarios
-
-    // Case1 : Invalid Row
-    let update_result = model
-        .workbook
-        .worksheet_mut(0)
-        .unwrap()
-        .set_cell_with_number(0, 1, 1.0, 1);
-    assert_eq!(update_result, Err("Incorrect row or column".to_string()));
-
-    // Case2 : Invalid Column
-    let update_result = model
-        .workbook
-        .worksheet_mut(0)
-        .unwrap()
-        .set_cell_with_number(1, 1048579, 1.0, 1);
-    assert_eq!(update_result, Err("Incorrect row or column".to_string()));
-}
-
-#[test]
-fn test_worksheet_set_cell_with_string() {
-    let mut model = new_empty_model();
-
-    // Now testing all the possible error scenarios
-
-    // Case1 : Invalid Row
-    let update_result = model
-        .workbook
-        .worksheet_mut(0)
-        .unwrap()
-        .set_cell_with_string(0, 1, 1, 1);
-    assert_eq!(update_result, Err("Incorrect row or column".to_string()));
-
-    // Case2 : Invalid Column
-    let update_result = model
-        .workbook
-        .worksheet_mut(0)
-        .unwrap()
-        .set_cell_with_string(1, 1048579, 1, 1);
-    assert_eq!(update_result, Err("Incorrect row or column".to_string()));
-}
-
-#[test]
-fn test_worksheet_set_cell_with_boolean() {
-    let mut model = new_empty_model();
-
-    // Now testing all the possible error scenarios
-
-    // Case1 : Invalid Row
-    let update_result = model
-        .workbook
-        .worksheet_mut(0)
-        .unwrap()
-        .set_cell_with_boolean(0, 1, true, 1);
-    assert_eq!(update_result, Err("Incorrect row or column".to_string()));
-
-    // Case2 : Invalid Column
-    let update_result = model
-        .workbook
-        .worksheet_mut(0)
-        .unwrap()
-        .set_cell_with_boolean(1, 1048579, true, 1);
-    assert_eq!(update_result, Err("Incorrect row or column".to_string()));
-}
-
-#[test]
-fn test_worksheet_set_cell_with_error() {
-    let mut model = new_empty_model();
-
-    // Now testing all the possible error scenarios
-
-    // Case1: Invalid Row
-    let update_result = model
-        .workbook
-        .worksheet_mut(0)
-        .unwrap()
-        .set_cell_with_error(0, 1, token::Error::ERROR, 1);
-    assert_eq!(update_result, Err("Incorrect row or column".to_string()));
-
-    // Case2 : Invalid Column
-    let update_result = model
-        .workbook
-        .worksheet_mut(0)
-        .unwrap()
-        .set_cell_with_error(1, 1048579, token::Error::ERROR, 1);
-    assert_eq!(update_result, Err("Incorrect row or column".to_string()));
-}
-
-#[test]
-fn test_worksheet_cell_clear_contents() {
-    let mut model = new_empty_model();
-
-    model
-        .workbook
-        .worksheet_mut(0)
-        .unwrap()
-        .update_cell(1, 1, Cell::new_number(10.0, 1))
-        .unwrap();
-    // Now testing all the possible error scenarios
-
-    // Case1 : Invalid Row
-    let update_result = model
-        .workbook
-        .worksheet_mut(0)
-        .unwrap()
-        .cell_clear_contents(0, 1);
-    assert_eq!(update_result, Err("Incorrect row or column".to_string()));
-
-    // Case2 : Invalid Column
-    let update_result = model
-        .workbook
-        .worksheet_mut(0)
-        .unwrap()
-        .cell_clear_contents(1, 1048579);
-    assert_eq!(update_result, Err("Incorrect row or column".to_string()));
-
-    // Case3 : Valid case
-    let update_result = model
-        .workbook
-        .worksheet_mut(0)
-        .unwrap()
-        .cell_clear_contents(1, 1);
-    assert_eq!(update_result, Ok(()))
-}
-
-#[test]
-fn test_worksheet_cell_clear_contents_with_style() {
-    let mut model = new_empty_model();
-
-    model
-        .workbook
-        .worksheet_mut(0)
-        .unwrap()
-        .update_cell(1, 1, Cell::new_number(10.0, 1))
-        .unwrap();
-    // Now testing all the possible error scenarios
-
-    // Case1 : Invalid Row
-    let update_result = model
-        .workbook
-        .worksheet_mut(0)
-        .unwrap()
-        .cell_clear_contents_with_style(0, 1, 1);
-    assert_eq!(update_result, Err("Incorrect row or column".to_string()));
-
-    // Case2 : Invalid Column
-    let update_result = model
-        .workbook
-        .worksheet_mut(0)
-        .unwrap()
-        .cell_clear_contents_with_style(1, 1048579, 1);
-    assert_eq!(update_result, Err("Incorrect row or column".to_string()));
-
-    // Case3 : Valid case
-    let update_result = model
-        .workbook
-        .worksheet_mut(0)
-        .unwrap()
-        .cell_clear_contents_with_style(1, 1, 1);
-    assert_eq!(update_result, Ok(()))
-}
-
-#[test]
-fn workbook_styles_get_style_error_handling() {
-    let model = new_empty_model();
-
-    // case 1 : Invalid index
-    assert_eq!(
-        model.workbook.styles.get_style(15),
-        Err("Invalid index provided".to_string())
-    );
-}
-
-#[test]
-fn workbook_styles_get_style_without_quote_prefix_error_handling() {
-    let mut model = new_empty_model();
-
-    // case 1 : Invalid index
-    assert_eq!(
-        model.workbook.styles.get_style_without_quote_prefix(15),
-        Err("Invalid index provided".to_string())
-    );
-}
-
-#[test]
-fn workbook_styles_get_style_with_format_error_handling() {
-    let mut model = new_empty_model();
-
-    // case 1 : Invalid index
-    assert_eq!(
-        model
-            .workbook
-            .styles
-            .get_style_with_format(15, "dummy_num_format"),
-        Err("Invalid index provided".to_string())
-    );
-}
-
-#[test]
-fn workbook_styles_get_style_with_quote_prefix_handling() {
-    let mut model = new_empty_model();
-
-    // case 1 : Invalid index
-    assert_eq!(
-        model.workbook.styles.get_style_with_quote_prefix(15),
-        Err("Invalid index provided".to_string())
-    );
-}

base/src/test/test_set_user_input.rs

@@ -5,28 +5,16 @@ use crate::{cell::CellValue, test::util::new_empty_model};
 #[test]
 fn test_currencies() {
     let mut model = new_empty_model();
-    model
-        .set_user_input(0, 1, 1, "$100.348".to_string())
-        .unwrap();
-    model
-        .set_user_input(0, 1, 2, "=ISNUMBER(A1)".to_string())
-        .unwrap();
+    model.set_user_input(0, 1, 1, "$100.348".to_string());
+    model.set_user_input(0, 1, 2, "=ISNUMBER(A1)".to_string());
 
-    model
-        .set_user_input(0, 2, 1, "$ 100.348".to_string())
-        .unwrap();
-    model
-        .set_user_input(0, 2, 2, "=ISNUMBER(A2)".to_string())
-        .unwrap();
+    model.set_user_input(0, 2, 1, "$ 100.348".to_string());
+    model.set_user_input(0, 2, 2, "=ISNUMBER(A2)".to_string());
 
-    model.set_user_input(0, 3, 1, "100$".to_string()).unwrap();
-    model
-        .set_user_input(0, 3, 2, "=ISNUMBER(A3)".to_string())
-        .unwrap();
+    model.set_user_input(0, 3, 1, "100$".to_string());
+    model.set_user_input(0, 3, 2, "=ISNUMBER(A3)".to_string());
 
-    model
-        .set_user_input(0, 4, 1, "3.1415926$".to_string())
-        .unwrap();
+    model.set_user_input(0, 4, 1, "3.1415926$".to_string());
 
     model.evaluate();
 
@@ -55,9 +43,9 @@ fn test_currencies() {
 #[test]
 fn scientific() {
     let mut model = new_empty_model();
-    model.set_user_input(0, 1, 1, "3e-4".to_string()).unwrap();
-    model.set_user_input(0, 2, 1, "5e-4$".to_string()).unwrap();
-    model.set_user_input(0, 3, 1, "6e-4%".to_string()).unwrap();
+    model.set_user_input(0, 1, 1, "3e-4".to_string());
+    model.set_user_input(0, 2, 1, "5e-4$".to_string());
+    model.set_user_input(0, 3, 1, "6e-4%".to_string());
 
     model.evaluate();
 
@@ -73,13 +61,9 @@ fn scientific() {
 #[test]
 fn test_percentage() {
     let mut model = new_empty_model();
-    model.set_user_input(0, 10, 1, "50%".to_string()).unwrap();
-    model
-        .set_user_input(0, 10, 2, "=ISNUMBER(A10)".to_string())
-        .unwrap();
-    model
-        .set_user_input(0, 11, 1, "55.759%".to_string())
-        .unwrap();
+    model.set_user_input(0, 10, 1, "50%".to_string());
+    model.set_user_input(0, 10, 2, "=ISNUMBER(A10)".to_string());
+    model.set_user_input(0, 11, 1, "55.759%".to_string());
 
     model.evaluate();
 
@@ -97,8 +81,8 @@ fn test_percentage_ops() {
     let mut model = new_empty_model();
     model._set("A1", "5%");
     model._set("A2", "20%");
-    model.set_user_input(0, 3, 1, "=A1+A2".to_string()).unwrap();
-    model.set_user_input(0, 4, 1, "=A1*A2".to_string()).unwrap();
+    model.set_user_input(0, 3, 1, "=A1+A2".to_string());
+    model.set_user_input(0, 4, 1, "=A1*A2".to_string());
 
     model.evaluate();
 
@@ -109,19 +93,11 @@ fn test_percentage_ops() {
 #[test]
 fn test_numbers() {
     let mut model = new_empty_model();
-    model
-        .set_user_input(0, 1, 1, "1,000,000".to_string())
-        .unwrap();
+    model.set_user_input(0, 1, 1, "1,000,000".to_string());
 
-    model
-        .set_user_input(0, 20, 1, "50,123.549".to_string())
-        .unwrap();
-    model
-        .set_user_input(0, 21, 1, "50,12.549".to_string())
-        .unwrap();
-    model
-        .set_user_input(0, 22, 1, "1,234567".to_string())
-        .unwrap();
+    model.set_user_input(0, 20, 1, "50,123.549".to_string());
+    model.set_user_input(0, 21, 1, "50,12.549".to_string());
+    model.set_user_input(0, 22, 1, "1,234567".to_string());
 
     model.evaluate();
 
@@ -155,7 +131,7 @@ fn test_numbers() {
 #[test]
 fn test_negative_numbers() {
     let mut model = new_empty_model();
-    model.set_user_input(0, 1, 1, "-100".to_string()).unwrap();
+    model.set_user_input(0, 1, 1, "-100".to_string());
 
     model.evaluate();
 
@@ -168,19 +144,15 @@ fn test_negative_numbers() {
 #[test]
 fn test_negative_currencies() {
     let mut model = new_empty_model();
-    model.set_user_input(0, 1, 1, "-$100".to_string()).unwrap();
-    model
-        .set_user_input(0, 2, 1, "-$99.123".to_string())
-        .unwrap();
+    model.set_user_input(0, 1, 1, "-$100".to_string());
+    model.set_user_input(0, 2, 1, "-$99.123".to_string());
     // This is valid!
-    model.set_user_input(0, 3, 1, "$-345".to_string()).unwrap();
+    model.set_user_input(0, 3, 1, "$-345".to_string());
 
-    model.set_user_input(0, 1, 2, "-200$".to_string()).unwrap();
-    model
-        .set_user_input(0, 2, 2, "-92.689$".to_string())
-        .unwrap();
+    model.set_user_input(0, 1, 2, "-200$".to_string());
+    model.set_user_input(0, 2, 2, "-92.689$".to_string());
     // This is valid!
-    model.set_user_input(0, 3, 2, "-22$".to_string()).unwrap();
+    model.set_user_input(0, 3, 2, "-22$".to_string());
 
     model.evaluate();
 
@@ -202,10 +174,8 @@ fn test_formulas() {
     let mut model = new_empty_model();
     model._set("A1", "$100");
     model._set("A2", "$200");
-    model.set_user_input(0, 3, 1, "=A1+A2".to_string()).unwrap();
-    model
-        .set_user_input(0, 4, 1, "=SUM(A1:A3)".to_string())
-        .unwrap();
+    model.set_user_input(0, 3, 1, "=A1+A2".to_string());
+    model.set_user_input(0, 4, 1, "=SUM(A1:A3)".to_string());
 
     model.evaluate();
 
@@ -228,9 +198,9 @@ fn test_product() {
     model._set("A2", "$5");
     model._set("A3", "4");
 
-    model.set_user_input(0, 1, 2, "=A1*A2".to_string()).unwrap();
-    model.set_user_input(0, 2, 2, "=A1*A3".to_string()).unwrap();
-    model.set_user_input(0, 3, 2, "=A1*3".to_string()).unwrap();
+    model.set_user_input(0, 1, 2, "=A1*A2".to_string());
+    model.set_user_input(0, 2, 2, "=A1*A3".to_string());
+    model.set_user_input(0, 3, 2, "=A1*3".to_string());
 
     model.evaluate();
 
@@ -246,12 +216,10 @@ fn test_division() {
     model._set("A2", "$5");
     model._set("A3", "4");
 
-    model.set_user_input(0, 1, 2, "=A1/A2".to_string()).unwrap();
-    model.set_user_input(0, 2, 2, "=A1/A3".to_string()).unwrap();
-    model.set_user_input(0, 3, 2, "=A1/2".to_string()).unwrap();
-    model
-        .set_user_input(0, 4, 2, "=100/A2".to_string())
-        .unwrap();
+    model.set_user_input(0, 1, 2, "=A1/A2".to_string());
+    model.set_user_input(0, 2, 2, "=A1/A3".to_string());
+    model.set_user_input(0, 3, 2, "=A1/2".to_string());
+    model.set_user_input(0, 4, 2, "=100/A2".to_string());
 
     model.evaluate();
 
@@ -267,54 +235,54 @@ fn test_some_complex_examples() {
     // $3.00 / 2 = $1.50
     model._set("A1", "$3.00");
     model._set("A2", "2");
-    model.set_user_input(0, 3, 1, "=A1/A2".to_string()).unwrap();
+    model.set_user_input(0, 3, 1, "=A1/A2".to_string());
 
     // $3 / 2 = $1
     model._set("B1", "$3");
     model._set("B2", "2");
-    model.set_user_input(0, 3, 2, "=B1/B2".to_string()).unwrap();
+    model.set_user_input(0, 3, 2, "=B1/B2".to_string());
 
     // $5.00 * 25% = 25% * $5.00 = $1.25
     model._set("C1", "$5.00");
     model._set("C2", "25%");
-    model.set_user_input(0, 3, 3, "=C1*C2".to_string()).unwrap();
-    model.set_user_input(0, 4, 3, "=C2*C1".to_string()).unwrap();
+    model.set_user_input(0, 3, 3, "=C1*C2".to_string());
+    model.set_user_input(0, 4, 3, "=C2*C1".to_string());
 
     // $5 * 75% = 75% * $5 = $1
     model._set("D1", "$5");
     model._set("D2", "75%");
-    model.set_user_input(0, 3, 4, "=D1*D2".to_string()).unwrap();
-    model.set_user_input(0, 4, 4, "=D2*D1".to_string()).unwrap();
+    model.set_user_input(0, 3, 4, "=D1*D2".to_string());
+    model.set_user_input(0, 4, 4, "=D2*D1".to_string());
 
     // $10 + $9.99 = $9.99 + $10 = $19.99
     model._set("E1", "$10");
     model._set("E2", "$9.99");
-    model.set_user_input(0, 3, 5, "=E1+E2".to_string()).unwrap();
-    model.set_user_input(0, 4, 5, "=E2+E1".to_string()).unwrap();
+    model.set_user_input(0, 3, 5, "=E1+E2".to_string());
+    model.set_user_input(0, 4, 5, "=E2+E1".to_string());
 
     // $2 * 2 = 2 * $2 = $4
     model._set("F1", "$2");
     model._set("F2", "2");
-    model.set_user_input(0, 3, 6, "=F1*F2".to_string()).unwrap();
-    model.set_user_input(0, 4, 6, "=F2*F1".to_string()).unwrap();
+    model.set_user_input(0, 3, 6, "=F1*F2".to_string());
+    model.set_user_input(0, 4, 6, "=F2*F1".to_string());
 
     // $2.50 * 2 = 2 * $2.50 = $5.00
     model._set("G1", "$2.50");
     model._set("G2", "2");
-    model.set_user_input(0, 3, 7, "=G1*G2".to_string()).unwrap();
-    model.set_user_input(0, 4, 7, "=G2*G1".to_string()).unwrap();
+    model.set_user_input(0, 3, 7, "=G1*G2".to_string());
+    model.set_user_input(0, 4, 7, "=G2*G1".to_string());
 
     // $2 * 2.5 = 2.5 * $2 = $5
     model._set("H1", "$2");
     model._set("H2", "2.5");
-    model.set_user_input(0, 3, 8, "=H1*H2".to_string()).unwrap();
-    model.set_user_input(0, 4, 8, "=H2*H1".to_string()).unwrap();
+    model.set_user_input(0, 3, 8, "=H1*H2".to_string());
+    model.set_user_input(0, 4, 8, "=H2*H1".to_string());
 
     // 10% * 1,000 = 1,000 * 10% = 100
     model._set("I1", "10%");
     model._set("I2", "1,000");
-    model.set_user_input(0, 3, 9, "=I1*I2".to_string()).unwrap();
-    model.set_user_input(0, 4, 9, "=I2*I1".to_string()).unwrap();
+    model.set_user_input(0, 3, 9, "=I1*I2".to_string());
+    model.set_user_input(0, 4, 9, "=I2*I1".to_string());
 
     model.evaluate();
 
@@ -352,15 +320,9 @@ fn test_financial_functions() {
     model._set("A3", "10");
     model._set("A4", "$10,000");
 
-    model
-        .set_user_input(0, 5, 1, "=PMT(A2/12,A3,A4)".to_string())
-        .unwrap();
-    model
-        .set_user_input(0, 6, 1, "=PMT(A2/12,A3,A4,,1)".to_string())
-        .unwrap();
-    model
-        .set_user_input(0, 7, 1, "=PMT(0.2, 3, -200)".to_string())
-        .unwrap();
+    model.set_user_input(0, 5, 1, "=PMT(A2/12,A3,A4)".to_string());
+    model.set_user_input(0, 6, 1, "=PMT(A2/12,A3,A4,,1)".to_string());
+    model.set_user_input(0, 7, 1, "=PMT(0.2, 3, -200)".to_string());
 
     model.evaluate();
 
@@ -377,15 +339,9 @@ fn test_sum_function() {
     model._set("A1", "$100");
     model._set("A2", "$300");
 
-    model
-        .set_user_input(0, 1, 2, "=SUM(A:A)".to_string())
-        .unwrap();
-    model
-        .set_user_input(0, 2, 2, "=SUM(A1:A2)".to_string())
-        .unwrap();
-    model
-        .set_user_input(0, 3, 2, "=SUM(A1, A2, A3)".to_string())
-        .unwrap();
+    model.set_user_input(0, 1, 2, "=SUM(A:A)".to_string());
+    model.set_user_input(0, 2, 2, "=SUM(A1:A2)".to_string());
+    model.set_user_input(0, 3, 2, "=SUM(A1, A2, A3)".to_string());
 
     model.evaluate();
 
@@ -397,7 +353,7 @@ fn test_sum_function() {
 #[test]
 fn test_number() {
     let mut model = new_empty_model();
-    model.set_user_input(0, 1, 1, "3".to_string()).unwrap();
+    model.set_user_input(0, 1, 1, "3".to_string());
 
     model.evaluate();
 
@@ -411,9 +367,7 @@ fn test_number() {
 #[test]
 fn test_currencies_eur_prefix() {
     let mut model = new_empty_model();
-    model
-        .set_user_input(0, 1, 1, "€100.348".to_string())
-        .unwrap();
+    model.set_user_input(0, 1, 1, "€100.348".to_string());
 
     model.evaluate();
 
@@ -427,27 +381,19 @@ fn test_currencies_eur_prefix() {
 #[test]
 fn test_currencies_eur_suffix() {
     let mut model = new_empty_model();
-    model
-        .set_user_input(0, 1, 1, "100.348€".to_string())
-        .unwrap();
-    model.set_user_input(0, 2, 1, "25€".to_string()).unwrap();
+    model.set_user_input(0, 1, 1, "100.348€".to_string());
+    model.set_user_input(0, 2, 1, "25€".to_string());
 
     // negatives
-    model
-        .set_user_input(0, 1, 2, "-123.348€".to_string())
-        .unwrap();
-    model.set_user_input(0, 2, 2, "-42€".to_string()).unwrap();
+    model.set_user_input(0, 1, 2, "-123.348€".to_string());
+    model.set_user_input(0, 2, 2, "-42€".to_string());
 
     // with a space
-    model
-        .set_user_input(0, 1, 3, "101.348 €".to_string())
-        .unwrap();
-    model.set_user_input(0, 2, 3, "26 €".to_string()).unwrap();
+    model.set_user_input(0, 1, 3, "101.348 €".to_string());
+    model.set_user_input(0, 2, 3, "26 €".to_string());
 
-    model
-        .set_user_input(0, 1, 4, "-12.348 €".to_string())
-        .unwrap();
-    model.set_user_input(0, 2, 4, "-45 €".to_string()).unwrap();
+    model.set_user_input(0, 1, 4, "-12.348 €".to_string());
+    model.set_user_input(0, 2, 4, "-45 €".to_string());
 
     model.evaluate();
 
@@ -503,15 +449,9 @@ fn test_sum_function_eur() {
     model._set("A1", "€100");
     model._set("A2", "€300");
 
-    model
-        .set_user_input(0, 1, 2, "=SUM(A:A)".to_string())
-        .unwrap();
-    model
-        .set_user_input(0, 2, 2, "=SUM(A1:A2)".to_string())
-        .unwrap();
-    model
-        .set_user_input(0, 3, 2, "=SUM(A1, A2, A3)".to_string())
-        .unwrap();
+    model.set_user_input(0, 1, 2, "=SUM(A:A)".to_string());
+    model.set_user_input(0, 2, 2, "=SUM(A1:A2)".to_string());
+    model.set_user_input(0, 3, 2, "=SUM(A1, A2, A3)".to_string());
 
     model.evaluate();
 
@@ -523,9 +463,7 @@ fn test_sum_function_eur() {
 #[test]
 fn input_dates() {
     let mut model = new_empty_model();
-    model
-        .set_user_input(0, 1, 1, "3/4/2025".to_string())
-        .unwrap();
+    model.set_user_input(0, 1, 1, "3/4/2025".to_string());
 
     model.evaluate();
 
@@ -536,9 +474,7 @@ fn input_dates() {
     );
 
     // further date assignments do not change the format
-    model
-        .set_user_input(0, 1, 1, "08-08-2028".to_string())
-        .unwrap();
+    model.set_user_input(0, 1, 1, "08-08-2028".to_string());
     model.evaluate();
     assert_eq!(model._get_text("A1"), "8/8/2028");
 }

base/src/test/test_sheet_markup.rs

@@ -14,14 +14,14 @@ fn test_sheet_markup() {
     model._set("A4", "Total");
     model._set("B4", "=SUM(B2:B3)");
 
-    let mut style = model.get_style_for_cell(0, 1, 1).unwrap();
+    let mut style = model.get_style_for_cell(0, 1, 1);
     style.font.b = true;
     model.set_cell_style(0, 1, 1, &style).unwrap();
     model.set_cell_style(0, 1, 2, &style).unwrap();
     model.set_cell_style(0, 4, 1, &style).unwrap();
 
     assert_eq!(
-        model.get_sheet_markup(0),
+        model.sheet_markup(0),
         Ok("**Item**|**Cost**\nRent|$600\nElectricity|$200\n**Total**|=SUM(B2:B3)".to_string()),
     )
 }

base/src/test/test_sheets.rs

@@ -138,14 +138,14 @@ fn test_insert_sheet() {
 
     // Insert the sheet at the end and check the formula
     assert!(model.insert_sheet("Bacchus", 1, None).is_ok());
-    model.set_user_input(1, 3, 1, "42".to_string()).unwrap();
+    model.set_user_input(1, 3, 1, "42".to_string());
     model.evaluate();
     assert_eq!(model._get_text("A1"), "42");
     assert_eq!(model._get_text("A2"), "#REF!");
 
     // Insert a sheet in between the other two
     assert!(model.insert_sheet("Dionysus", 1, None).is_ok());
-    model.set_user_input(1, 3, 1, "111".to_string()).unwrap();
+    model.set_user_input(1, 3, 1, "111".to_string());
     model.evaluate();
     assert_eq!(model._get_text("A1"), "42");
     assert_eq!(model._get_text("A2"), "111");
@@ -176,7 +176,7 @@ fn test_rename_sheet() {
     let mut model = new_empty_model();
     model.new_sheet();
     model._set("A1", "=NewSheet!A3");
-    model.set_user_input(1, 3, 1, "25".to_string()).unwrap();
+    model.set_user_input(1, 3, 1, "25".to_string());
     model.evaluate();
     assert_eq!(model._get_text("A1"), "#REF!");
     assert!(model.rename_sheet("Sheet2", "NewSheet").is_ok());
@@ -189,7 +189,7 @@ fn test_rename_sheet_by_index() {
     let mut model = new_empty_model();
     model.new_sheet();
     model._set("A1", "=NewSheet!A1");
-    model.set_user_input(1, 1, 1, "25".to_string()).unwrap();
+    model.set_user_input(1, 1, 1, "25".to_string());
     model.evaluate();
     assert_eq!(model._get_text("A1"), "#REF!");
     assert!(model.rename_sheet_by_index(1, "NewSheet").is_ok());
@@ -236,11 +236,3 @@ fn test_delete_sheet_by_index() {
     assert_eq!(model.workbook.get_worksheet_names(), ["Sheet2"]);
     assert_eq!(model._get_text("Sheet2!A1"), "#REF!");
 }
-
-#[test]
-fn delete_sheet_error() {
-    let mut model = new_empty_model();
-    model.new_sheet();
-    assert!(model.delete_sheet(2).is_err());
-    assert!(model.delete_sheet(1).is_ok());
-}

base/src/test/test_styles.rs

@@ -7,10 +7,10 @@ use crate::types::Style;
 fn test_model_set_cells_with_values_styles() {
     let mut model = new_empty_model();
     // Inputs
-    model.set_user_input(0, 1, 1, "21".to_string()).unwrap(); // A1
-    model.set_user_input(0, 2, 1, "42".to_string()).unwrap(); // A2
+    model.set_user_input(0, 1, 1, "21".to_string()); // A1
+    model.set_user_input(0, 2, 1, "42".to_string()); // A2
 
-    let style_base = model.get_style_for_cell(0, 1, 1).unwrap();
+    let style_base = model.get_style_for_cell(0, 1, 1);
     let mut style = style_base.clone();
     style.font.b = true;
     style.num_fmt = "#,##0.00".to_string();
@@ -19,7 +19,7 @@ fn test_model_set_cells_with_values_styles() {
     let mut style = style_base;
     style.num_fmt = "#,##0.00".to_string();
     assert!(model.set_cell_style(0, 2, 1, &style).is_ok());
-    let style: Style = model.get_style_for_cell(0, 2, 1).unwrap();
+    let style: Style = model.get_style_for_cell(0, 2, 1);
     assert_eq!(style.num_fmt, "#,##0.00".to_string());
 }
 
@@ -27,21 +27,21 @@ fn test_model_set_cells_with_values_styles() {
 fn test_named_styles() {
     let mut model = new_empty_model();
     model._set("A1", "42");
-    let mut style = model.get_style_for_cell(0, 1, 1).unwrap();
+    let mut style = model.get_style_for_cell(0, 1, 1);
     style.font.b = true;
     assert!(model.set_cell_style(0, 1, 1, &style).is_ok());
-    let bold_style_index = model.get_cell_style_index(0, 1, 1).unwrap();
+    let bold_style_index = model.get_cell_style_index(0, 1, 1);
     let e = model
         .workbook
         .styles
         .add_named_cell_style("bold", bold_style_index);
     assert!(e.is_ok());
     model._set("A2", "420");
-    let a2_style_index = model.get_cell_style_index(0, 2, 1).unwrap();
+    let a2_style_index = model.get_cell_style_index(0, 2, 1);
     assert!(a2_style_index != bold_style_index);
     let e = model.set_cell_style_by_name(0, 2, 1, "bold");
     assert!(e.is_ok());
-    assert_eq!(model.get_cell_style_index(0, 2, 1), Ok(bold_style_index));
+    assert_eq!(model.get_cell_style_index(0, 2, 1), bold_style_index);
 }
 
 #[test]
@@ -49,7 +49,7 @@ fn test_create_named_style() {
     let mut model = new_empty_model();
     model._set("A1", "42");
 
-    let mut style = model.get_style_for_cell(0, 1, 1).unwrap();
+    let mut style = model.get_style_for_cell(0, 1, 1);
     assert!(!style.font.b);
 
     style.font.b = true;
@@ -59,6 +59,6 @@ fn test_create_named_style() {
     let e = model.set_cell_style_by_name(0, 1, 1, "bold");
     assert!(e.is_ok());
 
-    let style = model.get_style_for_cell(0, 1, 1).unwrap();
+    let style = model.get_style_for_cell(0, 1, 1);
     assert!(style.font.b);
 }