update: add leftbar to app

Cargo.lock

@@ -43,15 +43,6 @@ dependencies = [
  "libc",
 ]
 
-[[package]]
-name = "approx"
-version = "0.5.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cab112f0a86d568ea0e627cc1d6be74a1e9cd55214684db5561995f6dad897c6"
-dependencies = [
- "num-traits",
-]
-
 [[package]]
 name = "arrayvec"
 version = "0.7.6"
@@ -423,7 +414,7 @@ dependencies = [
 
 [[package]]
 name = "ironcalc"
-version = "0.6.0"
+version = "0.5.0"
 dependencies = [
  "bitcode",
  "chrono",
@@ -439,7 +430,7 @@ dependencies = [
 
 [[package]]
 name = "ironcalc_base"
-version = "0.6.0"
+version = "0.5.0"
 dependencies = [
  "bitcode",
  "chrono",
@@ -452,12 +443,11 @@ dependencies = [
  "ryu",
  "serde",
  "serde_json",
- "statrs",
 ]
 
 [[package]]
 name = "ironcalc_nodejs"
-version = "0.6.0"
+version = "0.5.0"
 dependencies = [
  "ironcalc",
  "napi",
@@ -792,7 +782,7 @@ dependencies = [
 
 [[package]]
 name = "pyroncalc"
-version = "0.6.0"
+version = "0.5.7"
 dependencies = [
  "bitcode",
  "ironcalc",
@@ -975,16 +965,6 @@ version = "0.3.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "38b58827f4464d87d377d175e90bf58eb00fd8716ff0a62f80356b5e61555d0d"
 
-[[package]]
-name = "statrs"
-version = "0.18.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2a3fe7c28c6512e766b0874335db33c94ad7b8f9054228ae1c2abd47ce7d335e"
-dependencies = [
- "approx",
- "num-traits",
-]
-
 [[package]]
 name = "subtle"
 version = "2.5.0"
@@ -1095,7 +1075,7 @@ checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
 [[package]]
 name = "wasm"
-version = "0.6.0"
+version = "0.5.0"
 dependencies = [
  "ironcalc_base",
  "serde",

Dockerfile

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

README.md

@@ -31,17 +31,7 @@ This repository contains the main engine and the xlsx reader and writer.
 
 Programmed in Rust, you will be able to use it from a variety of programming languages like Python, JavaScript (wasm), nodejs and possibly R, Julia or Go.
 
-We will build different _skins_: in the terminal, as a desktop application or use it in your own web application.
+We will build different _skins_: in the terminal, as a desktop application or use it in you own web application.
-
-# Docker
-
-If you have docker installed just run:
-
-```bash
-docker compose up --build
-```
-
-head over to <http://localhost:2080> to test the application.
 
 # Building
 
@@ -94,7 +84,7 @@ And then use this code in `main.rs`:
 
 ```rust
 use ironcalc::{
-    base::{expressions::utils::number_to_column, Model},
+    base::{expressions::utils::number_to_column, model::Model},
     export::save_to_xlsx,
 };
 

base/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ironcalc_base"
-version = "0.6.0"
+version = "0.5.0"
 authors = ["Nicolás Hatcher <nicolas@theuniverse.today>"]
 edition = "2021"
 homepage = "https://www.ironcalc.com"
@@ -19,7 +19,6 @@ regex = { version = "1.0", optional = true}
 regex-lite = { version = "0.1.6", optional = true}
 bitcode = "0.6.3"
 csv = "1.3.0"
-statrs = { version = "0.18.0", default-features = false, features = [] }
 
 [features]
 default = ["use_regex_full"]

base/src/cast.rs

@@ -5,7 +5,6 @@ use crate::{
         token::Error,
         types::CellReferenceIndex,
     },
-    formatter::format::parse_formatted_number,
     model::Model,
 };
 
@@ -15,23 +14,6 @@ pub(crate) enum NumberOrArray {
 }
 
 impl Model {
-    pub(crate) fn cast_number(&self, s: &str) -> Option<f64> {
-        match s.trim().parse::<f64>() {
-            Ok(f) => Some(f),
-            _ => {
-                let currency = &self.locale.currency.symbol;
-                let mut currencies = vec!["$", "€"];
-                if !currencies.iter().any(|e| *e == currency) {
-                    currencies.push(currency);
-                }
-                // Try to parse as a formatted number (e.g., dates, currencies, percentages)
-                if let Ok((v, _number_format)) = parse_formatted_number(s, &currencies) {
-                    return Some(v);
-                }
-                None
-            }
-        }
-    }
     pub(crate) fn get_number_or_array(
         &mut self,
         node: &Node,
@@ -39,9 +21,9 @@ impl Model {
     ) -> Result<NumberOrArray, CalcResult> {
         match self.evaluate_node_in_context(node, cell) {
             CalcResult::Number(f) => Ok(NumberOrArray::Number(f)),
-            CalcResult::String(s) => match self.cast_number(&s) {
+            CalcResult::String(s) => match s.parse::<f64>() {
-                Some(f) => Ok(NumberOrArray::Number(f)),
+                Ok(f) => Ok(NumberOrArray::Number(f)),
-                None => Err(CalcResult::new_error(
+                _ => Err(CalcResult::new_error(
                     Error::VALUE,
                     cell,
                     "Expecting number".to_string(),
@@ -107,16 +89,16 @@ impl Model {
         self.cast_to_number(result, cell)
     }
 
-    pub(crate) fn cast_to_number(
+    fn cast_to_number(
         &mut self,
         result: CalcResult,
         cell: CellReferenceIndex,
     ) -> Result<f64, CalcResult> {
         match result {
             CalcResult::Number(f) => Ok(f),
-            CalcResult::String(s) => match self.cast_number(&s) {
+            CalcResult::String(s) => match s.parse::<f64>() {
-                Some(f) => Ok(f),
+                Ok(f) => Ok(f),
-                None => Err(CalcResult::new_error(
+                _ => Err(CalcResult::new_error(
                     Error::VALUE,
                     cell,
                     "Expecting number".to_string(),

base/src/expressions/parser/static_analysis.rs

@@ -341,8 +341,7 @@ fn static_analysis_offset(args: &[Node]) -> StaticResult {
         }
         _ => return StaticResult::Unknown,
     };
-    // Both height and width are explicitly 1, so OFFSET will return a single cell
+    StaticResult::Unknown
-    StaticResult::Scalar
 }
 
 // fn static_analysis_choose(_args: &[Node]) -> StaticResult {
@@ -576,37 +575,6 @@ fn args_signature_xnpv(arg_count: usize) -> Vec<Signature> {
     }
 }
 
-// NETWORKDAYS(start_date, end_date, [holidays])
-// Parameters: start_date (scalar), end_date (scalar), holidays (optional vector)
-fn args_signature_networkdays(arg_count: usize) -> Vec<Signature> {
-    if arg_count == 2 {
-        vec![Signature::Scalar, Signature::Scalar]
-    } else if arg_count == 3 {
-        vec![Signature::Scalar, Signature::Scalar, Signature::Vector]
-    } else {
-        vec![Signature::Error; arg_count]
-    }
-}
-
-// NETWORKDAYS.INTL(start_date, end_date, [weekend], [holidays])
-// Parameters: start_date (scalar), end_date (scalar), weekend (optional scalar), holidays (optional vector)
-fn args_signature_networkdays_intl(arg_count: usize) -> Vec<Signature> {
-    if arg_count == 2 {
-        vec![Signature::Scalar, Signature::Scalar]
-    } else if arg_count == 3 {
-        vec![Signature::Scalar, Signature::Scalar, Signature::Scalar]
-    } else if arg_count == 4 {
-        vec![
-            Signature::Scalar,
-            Signature::Scalar,
-            Signature::Scalar,
-            Signature::Vector,
-        ]
-    } else {
-        vec![Signature::Error; arg_count]
-    }
-}
-
 // FIXME: This is terrible duplications of efforts. We use the signature in at least three different places:
 // 1. When computing the function
 // 2. Checking the arguments to see if we need to insert the implicit intersection operator
@@ -722,28 +690,13 @@ fn get_function_args_signature(kind: &Function, arg_count: usize) -> Vec<Signatu
         Function::Maxifs => vec![Signature::Vector; arg_count],
         Function::Minifs => vec![Signature::Vector; arg_count],
         Function::Date => args_signature_scalars(arg_count, 3, 0),
-        Function::Datedif => args_signature_scalars(arg_count, 3, 0),
-        Function::Datevalue => args_signature_scalars(arg_count, 1, 0),
         Function::Day => args_signature_scalars(arg_count, 1, 0),
         Function::Edate => args_signature_scalars(arg_count, 2, 0),
         Function::Eomonth => args_signature_scalars(arg_count, 2, 0),
         Function::Month => args_signature_scalars(arg_count, 1, 0),
-        Function::Time => args_signature_scalars(arg_count, 3, 0),
-        Function::Timevalue => args_signature_scalars(arg_count, 1, 0),
-        Function::Hour => args_signature_scalars(arg_count, 1, 0),
-        Function::Minute => args_signature_scalars(arg_count, 1, 0),
-        Function::Second => args_signature_scalars(arg_count, 1, 0),
         Function::Now => args_signature_no_args(arg_count),
         Function::Today => args_signature_no_args(arg_count),
         Function::Year => args_signature_scalars(arg_count, 1, 0),
-        Function::Days => args_signature_scalars(arg_count, 2, 0),
-        Function::Days360 => args_signature_scalars(arg_count, 2, 1),
-        Function::Weekday => args_signature_scalars(arg_count, 1, 1),
-        Function::Weeknum => args_signature_scalars(arg_count, 1, 1),
-        Function::Workday => args_signature_scalars(arg_count, 2, 1),
-        Function::WorkdayIntl => args_signature_scalars(arg_count, 2, 2),
-        Function::Yearfrac => args_signature_scalars(arg_count, 2, 1),
-        Function::Isoweeknum => args_signature_scalars(arg_count, 1, 0),
         Function::Cumipmt => args_signature_scalars(arg_count, 6, 0),
         Function::Cumprinc => args_signature_scalars(arg_count, 6, 0),
         Function::Db => args_signature_scalars(arg_count, 4, 1),
@@ -832,63 +785,6 @@ fn get_function_args_signature(kind: &Function, arg_count: usize) -> Vec<Signatu
         Function::Formulatext => args_signature_scalars(arg_count, 1, 0),
         Function::Unicode => args_signature_scalars(arg_count, 1, 0),
         Function::Geomean => vec![Signature::Vector; arg_count],
-        Function::Networkdays => args_signature_networkdays(arg_count),
-        Function::NetworkdaysIntl => args_signature_networkdays_intl(arg_count),
-        Function::Acot => args_signature_scalars(arg_count, 1, 0),
-        Function::Acoth => args_signature_scalars(arg_count, 1, 0),
-        Function::Cot => args_signature_scalars(arg_count, 1, 0),
-        Function::Coth => args_signature_scalars(arg_count, 1, 0),
-        Function::Csc => args_signature_scalars(arg_count, 1, 0),
-        Function::Csch => args_signature_scalars(arg_count, 1, 0),
-        Function::Sec => args_signature_scalars(arg_count, 1, 0),
-        Function::Sech => args_signature_scalars(arg_count, 1, 0),
-        Function::Exp => args_signature_scalars(arg_count, 1, 0),
-        Function::Fact => args_signature_scalars(arg_count, 1, 0),
-        Function::Factdouble => args_signature_scalars(arg_count, 1, 0),
-        Function::Sign => args_signature_scalars(arg_count, 1, 0),
-        Function::Radians => args_signature_scalars(arg_count, 1, 0),
-        Function::Degrees => args_signature_scalars(arg_count, 1, 0),
-        Function::Int => args_signature_scalars(arg_count, 1, 0),
-        Function::Even => args_signature_scalars(arg_count, 1, 0),
-        Function::Odd => args_signature_scalars(arg_count, 1, 0),
-        Function::Ceiling => args_signature_scalars(arg_count, 2, 0),
-        Function::CeilingMath => args_signature_scalars(arg_count, 1, 2),
-        Function::CeilingPrecise => args_signature_scalars(arg_count, 1, 1),
-        Function::Floor => args_signature_scalars(arg_count, 2, 0),
-        Function::FloorMath => args_signature_scalars(arg_count, 1, 2),
-        Function::FloorPrecise => args_signature_scalars(arg_count, 1, 1),
-        Function::IsoCeiling => args_signature_scalars(arg_count, 1, 1),
-        Function::Mod => args_signature_scalars(arg_count, 2, 0),
-        Function::Quotient => args_signature_scalars(arg_count, 2, 0),
-        Function::Mround => args_signature_scalars(arg_count, 2, 0),
-        Function::Trunc => args_signature_scalars(arg_count, 1, 1),
-        Function::Gcd => vec![Signature::Vector; arg_count],
-        Function::Lcm => vec![Signature::Vector; arg_count],
-        Function::Base => args_signature_scalars(arg_count, 2, 1),
-        Function::Decimal => args_signature_scalars(arg_count, 2, 0),
-        Function::Roman => args_signature_scalars(arg_count, 1, 1),
-        Function::Arabic => args_signature_scalars(arg_count, 1, 0),
-        Function::Combin => args_signature_scalars(arg_count, 2, 0),
-        Function::Combina => args_signature_scalars(arg_count, 2, 0),
-        Function::Sumsq => vec![Signature::Vector; arg_count],
-
-        Function::N => args_signature_scalars(arg_count, 1, 0),
-        Function::Sheets => args_signature_scalars(arg_count, 0, 1),
-        Function::Cell => args_signature_scalars(arg_count, 1, 1),
-        Function::Info => args_signature_scalars(arg_count, 1, 1),
-
-        Function::Daverage => vec![Signature::Vector, Signature::Scalar, Signature::Vector],
-        Function::Dcount => vec![Signature::Vector, Signature::Scalar, Signature::Vector],
-        Function::Dget => vec![Signature::Vector, Signature::Scalar, Signature::Vector],
-        Function::Dmax => vec![Signature::Vector, Signature::Scalar, Signature::Vector],
-        Function::Dmin => vec![Signature::Vector, Signature::Scalar, Signature::Vector],
-        Function::Dsum => vec![Signature::Vector, Signature::Scalar, Signature::Vector],
-        Function::Dcounta => vec![Signature::Vector, Signature::Scalar, Signature::Vector],
-        Function::Dproduct => vec![Signature::Vector, Signature::Scalar, Signature::Vector],
-        Function::Dstdev => vec![Signature::Vector, Signature::Scalar, Signature::Vector],
-        Function::Dvar => vec![Signature::Vector, Signature::Scalar, Signature::Vector],
-        Function::Dvarp => vec![Signature::Vector, Signature::Scalar, Signature::Vector],
-        Function::Dstdevp => vec![Signature::Vector, Signature::Scalar, Signature::Vector],
     }
 }
 
@@ -1000,27 +896,12 @@ fn static_analysis_on_function(kind: &Function, args: &[Node]) -> StaticResult {
         Function::Maxifs => not_implemented(args),
         Function::Minifs => not_implemented(args),
         Function::Date => not_implemented(args),
-        Function::Datedif => not_implemented(args),
-        Function::Datevalue => not_implemented(args),
         Function::Day => not_implemented(args),
         Function::Edate => not_implemented(args),
         Function::Month => not_implemented(args),
-        Function::Time => not_implemented(args),
-        Function::Timevalue => not_implemented(args),
-        Function::Hour => not_implemented(args),
-        Function::Minute => not_implemented(args),
-        Function::Second => not_implemented(args),
         Function::Now => not_implemented(args),
         Function::Today => not_implemented(args),
         Function::Year => not_implemented(args),
-        Function::Days => not_implemented(args),
-        Function::Days360 => not_implemented(args),
-        Function::Weekday => not_implemented(args),
-        Function::Weeknum => not_implemented(args),
-        Function::Workday => not_implemented(args),
-        Function::WorkdayIntl => not_implemented(args),
-        Function::Yearfrac => not_implemented(args),
-        Function::Isoweeknum => not_implemented(args),
         Function::Cumipmt => not_implemented(args),
         Function::Cumprinc => not_implemented(args),
         Function::Db => not_implemented(args),
@@ -1109,61 +990,5 @@ fn static_analysis_on_function(kind: &Function, args: &[Node]) -> StaticResult {
         Function::Eomonth => scalar_arguments(args),
         Function::Formulatext => not_implemented(args),
         Function::Geomean => not_implemented(args),
-        Function::Networkdays => not_implemented(args),
-        Function::NetworkdaysIntl => not_implemented(args),
-        Function::Acot => scalar_arguments(args),
-        Function::Acoth => scalar_arguments(args),
-        Function::Cot => scalar_arguments(args),
-        Function::Coth => scalar_arguments(args),
-        Function::Csc => scalar_arguments(args),
-        Function::Csch => scalar_arguments(args),
-        Function::Sec => scalar_arguments(args),
-        Function::Sech => scalar_arguments(args),
-        Function::Exp => scalar_arguments(args),
-        Function::Fact => scalar_arguments(args),
-        Function::Factdouble => scalar_arguments(args),
-        Function::Sign => scalar_arguments(args),
-        Function::Radians => scalar_arguments(args),
-        Function::Degrees => scalar_arguments(args),
-        Function::Int => scalar_arguments(args),
-        Function::Even => scalar_arguments(args),
-        Function::Odd => scalar_arguments(args),
-        Function::Ceiling => scalar_arguments(args),
-        Function::CeilingMath => scalar_arguments(args),
-        Function::CeilingPrecise => scalar_arguments(args),
-        Function::Floor => scalar_arguments(args),
-        Function::FloorMath => scalar_arguments(args),
-        Function::FloorPrecise => scalar_arguments(args),
-        Function::IsoCeiling => scalar_arguments(args),
-        Function::Mod => scalar_arguments(args),
-        Function::Quotient => scalar_arguments(args),
-        Function::Mround => scalar_arguments(args),
-        Function::Trunc => scalar_arguments(args),
-        Function::Gcd => not_implemented(args),
-        Function::Lcm => not_implemented(args),
-        Function::Base => scalar_arguments(args),
-        Function::Decimal => scalar_arguments(args),
-        Function::Roman => scalar_arguments(args),
-        Function::Arabic => scalar_arguments(args),
-        Function::Combin => scalar_arguments(args),
-        Function::Combina => scalar_arguments(args),
-        Function::Sumsq => StaticResult::Scalar,
-        Function::N => scalar_arguments(args),
-        Function::Sheets => scalar_arguments(args),
-        Function::Cell => scalar_arguments(args),
-        Function::Info => scalar_arguments(args),
-
-        Function::Dget => not_implemented(args),
-        Function::Dmax => not_implemented(args),
-        Function::Dmin => not_implemented(args),
-        Function::Dcount => not_implemented(args),
-        Function::Daverage => not_implemented(args),
-        Function::Dsum => not_implemented(args),
-        Function::Dcounta => not_implemented(args),
-        Function::Dproduct => not_implemented(args),
-        Function::Dstdev => not_implemented(args),
-        Function::Dvar => not_implemented(args),
-        Function::Dvarp => not_implemented(args),
-        Function::Dstdevp => not_implemented(args),
     }
 }

base/src/expressions/parser/stringify.rs

@@ -520,7 +520,6 @@ fn stringify(
             let x = match **left {
                 BooleanKind(_)
                 | NumberKind(_)
-                | UnaryKind { .. }
                 | StringKind(_)
                 | ReferenceKind { .. }
                 | RangeKind { .. }
@@ -536,6 +535,7 @@ fn stringify(
                 | FunctionKind { .. }
                 | InvalidFunctionKind { .. }
                 | ArrayKind(_)
+                | UnaryKind { .. }
                 | ErrorKind(_)
                 | ParseErrorKind { .. }
                 | OpSumKind { .. }
@@ -630,6 +630,7 @@ fn stringify(
                     | OpRangeKind { .. }
                     | OpConcatenateKind { .. }
                     | OpProductKind { .. }
+                    | OpPowerKind { .. }
                     | FunctionKind { .. }
                     | InvalidFunctionKind { .. }
                     | ArrayKind(_)
@@ -642,7 +643,7 @@ fn stringify(
                     | ParseErrorKind { .. }
                     | EmptyArgKind => false,
 
-                    OpPowerKind { .. } | OpSumKind { .. } | UnaryKind { .. } => true,
+                    OpSumKind { .. } | UnaryKind { .. } => true,
                 };
                 if needs_parentheses {
                     format!(

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

@@ -3,7 +3,6 @@ mod test_arrays;
 mod test_general;
 mod test_implicit_intersection;
 mod test_issue_155;
-mod test_issue_483;
 mod test_move_formula;
 mod test_ranges;
 mod test_stringify;

base/src/expressions/parser/tests/test_issue_483.rs

@@ -1,27 +0,0 @@
-#![allow(clippy::panic)]
-
-use std::collections::HashMap;
-
-use crate::expressions::parser::stringify::to_string;
-use crate::expressions::parser::{Node, Parser};
-use crate::expressions::types::CellReferenceRC;
-
-#[test]
-fn issue_483_parser() {
-    let worksheets = vec!["Sheet1".to_string()];
-    let mut parser = Parser::new(worksheets, vec![], HashMap::new());
-
-    // Reference cell is Sheet1!A1
-    let cell_reference = CellReferenceRC {
-        sheet: "Sheet1".to_string(),
-        row: 2,
-        column: 2,
-    };
-    let t = parser.parse("-(A1^1.22)", &cell_reference);
-    assert!(matches!(t, Node::UnaryKind { .. }));
-    assert_eq!(to_string(&t, &cell_reference), "-(A1^1.22)");
-
-    let t = parser.parse("-A1^1.22", &cell_reference);
-    assert!(matches!(t, Node::OpPowerKind { .. }));
-    assert_eq!(to_string(&t, &cell_reference), "-A1^1.22");
-}

base/src/expressions/utils/mod.rs

@@ -211,19 +211,15 @@ pub fn parse_reference_a1(r: &str) -> Option<ParsedReference> {
 pub fn is_valid_identifier(name: &str) -> bool {
     // https://support.microsoft.com/en-us/office/names-in-formulas-fc2935f9-115d-4bef-a370-3aa8bb4c91f1
     // https://github.com/MartinTrummer/excel-names/
+    // NOTE: We are being much more restrictive than Excel.
+    // In particular we do not support non ascii characters.
     let upper = name.to_ascii_uppercase();
-    // length of chars
+    let bytes = upper.as_bytes();
-    let len = upper.chars().count();
+    let len = bytes.len();
-
-    let mut chars = upper.chars();
-
     if len > 255 || len == 0 {
         return false;
     }
-    let first = match chars.next() {
+    let first = bytes[0] as char;
-        Some(ch) => ch,
-        None => return false,
-    };
     // The first character of a name must be a letter, an underscore character (_), or a backslash (\).
     if !(first.is_ascii_alphabetic() || first == '_' || first == '\\') {
         return false;
@@ -241,10 +237,20 @@ pub fn is_valid_identifier(name: &str) -> bool {
     if parse_reference_r1c1(name).is_some() {
         return false;
     }
-    for ch in chars {
+    let mut i = 1;
-        if !(ch.is_alphanumeric() || ch == '_' || ch == '.') {
+    while i < len {
-            return false;
+        let ch = bytes[i] as char;
+        match ch {
+            'a'..='z' => {}
+            'A'..='Z' => {}
+            '0'..='9' => {}
+            '_' => {}
+            '.' => {}
+            _ => {
+                return false;
+            }
         }
+        i += 1;
     }
 
     true
@@ -253,23 +259,15 @@ pub fn is_valid_identifier(name: &str) -> bool {
 fn name_needs_quoting(name: &str) -> bool {
     let chars = name.chars();
     // it contains any of these characters: ()'$,;-+{} or space
-    for (i, char) in chars.enumerate() {
+    for char in chars {
         if [' ', '(', ')', '\'', '$', ',', ';', '-', '+', '{', '}'].contains(&char) {
             return true;
         }
-        // if it starts with a number
-        if i == 0 && char.is_ascii_digit() {
-            return true;
-        }
-    }
-    if parse_reference_a1(name).is_some() {
-        // cell reference in A1 notation, e.g. B1048576 is quoted, B1048577 is not
-        return true;
-    }
-    if parse_reference_r1c1(name).is_some() {
-        // cell reference in R1C1 notation, e.g. RC, RC2, R5C, R-4C, RC-8, R, C
-        return true;
     }
+    // TODO:
+    // cell reference in A1 notation, e.g. B1048576 is quoted, B1048577 is not
+    // cell reference in R1C1 notation, e.g. RC, RC2, R5C, R-4C, RC-8, R, C
+    // integers
     false
 }
 
@@ -281,32 +279,3 @@ pub fn quote_name(name: &str) -> String {
     };
     name.to_string()
 }
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn test_quote_name() {
-        assert_eq!(quote_name("Sheet1"), "Sheet1");
-        assert_eq!(quote_name("Sheet 1"), "'Sheet 1'");
-        // escape and quote
-        assert_eq!(quote_name("Sheet1'"), "'Sheet1'''");
-        assert_eq!(quote_name("Data(2024)"), "'Data(2024)'");
-        assert_eq!(quote_name("Data$2024"), "'Data$2024'");
-        assert_eq!(quote_name("Data-2024"), "'Data-2024'");
-        assert_eq!(quote_name("Data+2024"), "'Data+2024'");
-        assert_eq!(quote_name("Data,2024"), "'Data,2024'");
-        assert_eq!(quote_name("Data;2024"), "'Data;2024'");
-        assert_eq!(quote_name("Data{2024}"), "'Data{2024}'");
-
-        assert_eq!(quote_name("2024"), "'2024'");
-        assert_eq!(quote_name("1Data"), "'1Data'");
-        assert_eq!(quote_name("A1"), "'A1'");
-        assert_eq!(quote_name("R1C1"), "'R1C1'");
-        assert_eq!(quote_name("MySheet"), "MySheet");
-
-        assert_eq!(quote_name("B1048576"), "'B1048576'");
-        assert_eq!(quote_name("B1048577"), "B1048577");
-    }
-}

base/src/expressions/utils/test.rs

@@ -196,7 +196,6 @@ fn test_names() {
     assert!(is_valid_identifier("_."));
     assert!(is_valid_identifier("_1"));
     assert!(is_valid_identifier("\\."));
-    assert!(is_valid_identifier("truñe"));
 
     // invalid
     assert!(!is_valid_identifier("true"));
@@ -210,6 +209,7 @@ fn test_names() {
     assert!(!is_valid_identifier("1true"));
 
     assert!(!is_valid_identifier("test€"));
+    assert!(!is_valid_identifier("truñe"));
     assert!(!is_valid_identifier("tr&ue"));
 
     assert!(!is_valid_identifier("LOG10"));

base/src/formatter/dates.rs

@@ -8,8 +8,6 @@ use crate::constants::EXCEL_DATE_BASE;
 use crate::constants::MAXIMUM_DATE_SERIAL_NUMBER;
 use crate::constants::MINIMUM_DATE_SERIAL_NUMBER;
 
-pub const DATE_OUT_OF_RANGE_MESSAGE: &str = "Out of range parameters for date";
-
 #[inline]
 fn convert_to_serial_number(date: NaiveDate) -> i32 {
     date.num_days_from_ce() - EXCEL_DATE_BASE
@@ -39,7 +37,7 @@ pub fn from_excel_date(days: i64) -> Result<NaiveDate, String> {
 pub fn date_to_serial_number(day: u32, month: u32, year: i32) -> Result<i32, String> {
     match NaiveDate::from_ymd_opt(year, month, day) {
         Some(native_date) => Ok(convert_to_serial_number(native_date)),
-        None => Err(DATE_OUT_OF_RANGE_MESSAGE.to_string()),
+        None => Err("Out of range parameters for date".to_string()),
     }
 }
 
@@ -57,7 +55,7 @@ pub fn permissive_date_to_serial_number(day: i32, month: i32, year: i32) -> Resu
         return Ok(MINIMUM_DATE_SERIAL_NUMBER);
     }
     let Some(mut date) = NaiveDate::from_ymd_opt(year, 1, 1) else {
-        return Err(DATE_OUT_OF_RANGE_MESSAGE.to_string());
+        return Err("Out of range parameters for date".to_string());
     };
 
     // One thing to note for example is that even if you started with a year out of range
@@ -70,7 +68,7 @@ pub fn permissive_date_to_serial_number(day: i32, month: i32, year: i32) -> Resu
     // As a result, we have to run range checks as we parse the date from the biggest unit to the
     // smallest unit.
     if !is_date_within_range(date) {
-        return Err(DATE_OUT_OF_RANGE_MESSAGE.to_string());
+        return Err("Out of range parameters for date".to_string());
     }
 
     date = {
@@ -82,7 +80,7 @@ pub fn permissive_date_to_serial_number(day: i32, month: i32, year: i32) -> Resu
             date = date + Months::new(abs_month);
         }
         if !is_date_within_range(date) {
-            return Err(DATE_OUT_OF_RANGE_MESSAGE.to_string());
+            return Err("Out of range parameters for date".to_string());
         }
         date
     };
@@ -96,7 +94,7 @@ pub fn permissive_date_to_serial_number(day: i32, month: i32, year: i32) -> Resu
             date = date + Days::new(abs_day);
         }
         if !is_date_within_range(date) {
-            return Err(DATE_OUT_OF_RANGE_MESSAGE.to_string());
+            return Err("Out of range parameters for date".to_string());
         }
         date
     };

base/src/formatter/format.rs

@@ -15,7 +15,7 @@ pub struct Formatted {
 
 /// Returns the vector of chars of the fractional part of a *positive* number:
 /// 3.1415926 ==> ['1', '4', '1', '5', '9', '2', '6']
-fn get_fract_part(value: f64, precision: i32, int_len: usize) -> Vec<char> {
+fn get_fract_part(value: f64, precision: i32) -> Vec<char> {
     let b = format!("{:.1$}", value.fract(), precision as usize)
         .chars()
         .collect::<Vec<char>>();
@@ -30,12 +30,6 @@ fn get_fract_part(value: f64, precision: i32, int_len: usize) -> Vec<char> {
     if last_non_zero < 2 {
         return vec![];
     }
-    let max_len = if int_len > 15 {
-        2_usize
-    } else {
-        15_usize - int_len + 1
-    };
-    let last_non_zero = usize::min(last_non_zero, max_len + 1);
     b[2..last_non_zero].to_vec()
 }
 
@@ -160,11 +154,16 @@ pub fn format_number(value_original: f64, format: &str, locale: &Locale) -> Form
         ParsePart::Date(p) => {
             let tokens = &p.tokens;
             let mut text = "".to_string();
-            let time_fract = value.fract();
+            let date = match from_excel_date(value as i64) {
-            let hours = (time_fract * 24.0).floor();
+                Ok(d) => d,
-            let minutes = ((time_fract * 24.0 - hours) * 60.0).floor();
+                Err(e) => {
-            let seconds = ((((time_fract * 24.0 - hours) * 60.0) - minutes) * 60.0).round();
+                    return Formatted {
-            let date = from_excel_date(value as i64).ok();
+                        text: "#VALUE!".to_owned(),
+                        color: None,
+                        error: Some(e),
+                    }
+                }
+            };
             for token in tokens {
                 match token {
                     TextToken::Literal(c) => {
@@ -188,44 +187,15 @@ pub fn format_number(value_original: f64, format: &str, locale: &Locale) -> Form
                     }
                     TextToken::Digit(_) => {}
                     TextToken::Period => {}
-                    TextToken::Day => match date {
+                    TextToken::Day => {
-                        Some(date) => {
+                        let day = date.day() as usize;
-                            let day = date.day() as usize;
+                        text = format!("{text}{day}");
-                            text = format!("{text}{day}");
+                    }
-                        }
-                        None => {
-                            return Formatted {
-                                text: "#VALUE!".to_owned(),
-                                color: None,
-                                error: Some(format!("Invalid date value: '{value}'")),
-                            }
-                        }
-                    },
                     TextToken::DayPadded => {
-                        let date = match date {
-                            Some(d) => d,
-                            None => {
-                                return Formatted {
-                                    text: "#VALUE!".to_owned(),
-                                    color: None,
-                                    error: Some(format!("Invalid date value: '{value}'")),
-                                }
-                            }
-                        };
                         let day = date.day() as usize;
                         text = format!("{text}{day:02}");
                     }
                     TextToken::DayNameShort => {
-                        let date = match date {
-                            Some(d) => d,
-                            None => {
-                                return Formatted {
-                                    text: "#VALUE!".to_owned(),
-                                    color: None,
-                                    error: Some(format!("Invalid date value: '{value}'")),
-                                }
-                            }
-                        };
                         let mut day = date.weekday().number_from_monday() as usize;
                         if day == 7 {
                             day = 0;
@@ -233,16 +203,6 @@ pub fn format_number(value_original: f64, format: &str, locale: &Locale) -> Form
                         text = format!("{}{}", text, &locale.dates.day_names_short[day]);
                     }
                     TextToken::DayName => {
-                        let date = match date {
-                            Some(d) => d,
-                            None => {
-                                return Formatted {
-                                    text: "#VALUE!".to_owned(),
-                                    color: None,
-                                    error: Some(format!("Invalid date value: '{value}'")),
-                                }
-                            }
-                        };
                         let mut day = date.weekday().number_from_monday() as usize;
                         if day == 7 {
                             day = 0;
@@ -250,144 +210,32 @@ pub fn format_number(value_original: f64, format: &str, locale: &Locale) -> Form
                         text = format!("{}{}", text, &locale.dates.day_names[day]);
                     }
                     TextToken::Month => {
-                        let date = match date {
-                            Some(d) => d,
-                            None => {
-                                return Formatted {
-                                    text: "#VALUE!".to_owned(),
-                                    color: None,
-                                    error: Some(format!("Invalid date value: '{value}'")),
-                                }
-                            }
-                        };
                         let month = date.month() as usize;
                         text = format!("{text}{month}");
                     }
                     TextToken::MonthPadded => {
-                        let date = match date {
-                            Some(d) => d,
-                            None => {
-                                return Formatted {
-                                    text: "#VALUE!".to_owned(),
-                                    color: None,
-                                    error: Some(format!("Invalid date value: '{value}'")),
-                                }
-                            }
-                        };
                         let month = date.month() as usize;
                         text = format!("{text}{month:02}");
                     }
                     TextToken::MonthNameShort => {
-                        let date = match date {
-                            Some(d) => d,
-                            None => {
-                                return Formatted {
-                                    text: "#VALUE!".to_owned(),
-                                    color: None,
-                                    error: Some(format!("Invalid date value: '{value}'")),
-                                }
-                            }
-                        };
                         let month = date.month() as usize;
                         text = format!("{}{}", text, &locale.dates.months_short[month - 1]);
                     }
                     TextToken::MonthName => {
-                        let date = match date {
-                            Some(d) => d,
-                            None => {
-                                return Formatted {
-                                    text: "#VALUE!".to_owned(),
-                                    color: None,
-                                    error: Some(format!("Invalid date value: '{value}'")),
-                                }
-                            }
-                        };
                         let month = date.month() as usize;
                         text = format!("{}{}", text, &locale.dates.months[month - 1]);
                     }
                     TextToken::MonthLetter => {
-                        let date = match date {
-                            Some(d) => d,
-                            None => {
-                                return Formatted {
-                                    text: "#VALUE!".to_owned(),
-                                    color: None,
-                                    error: Some(format!("Invalid date value: '{value}'")),
-                                }
-                            }
-                        };
                         let month = date.month() as usize;
                         let months_letter = &locale.dates.months_letter[month - 1];
                         text = format!("{text}{months_letter}");
                     }
                     TextToken::YearShort => {
-                        let date = match date {
-                            Some(d) => d,
-                            None => {
-                                return Formatted {
-                                    text: "#VALUE!".to_owned(),
-                                    color: None,
-                                    error: Some(format!("Invalid date value: '{value}'")),
-                                }
-                            }
-                        };
                         text = format!("{}{}", text, date.format("%y"));
                     }
                     TextToken::Year => {
-                        let date = match date {
-                            Some(d) => d,
-                            None => {
-                                return Formatted {
-                                    text: "#VALUE!".to_owned(),
-                                    color: None,
-                                    error: Some(format!("Invalid date value: '{value}'")),
-                                }
-                            }
-                        };
                         text = format!("{}{}", text, date.year());
                     }
-                    TextToken::Hour => {
-                        let mut hour = hours as i32;
-                        if p.use_ampm {
-                            if hour == 0 {
-                                hour = 12;
-                            } else if hour > 12 {
-                                hour -= 12;
-                            }
-                        }
-                        text = format!("{text}{hour}");
-                    }
-                    TextToken::HourPadded => {
-                        let mut hour = hours as i32;
-                        if p.use_ampm {
-                            if hour == 0 {
-                                hour = 12;
-                            } else if hour > 12 {
-                                hour -= 12;
-                            }
-                        }
-                        text = format!("{text}{hour:02}");
-                    }
-                    TextToken::Second => {
-                        let second = seconds as i32;
-                        text = format!("{text}{second}");
-                    }
-                    TextToken::SecondPadded => {
-                        let second = seconds as i32;
-                        text = format!("{text}{second:02}");
-                    }
-                    TextToken::AMPM => {
-                        let ampm = if hours < 12.0 { "AM" } else { "PM" };
-                        text = format!("{text}{ampm}");
-                    }
-                    TextToken::Minute => {
-                        let minute = minutes as i32;
-                        text = format!("{text}{minute}");
-                    }
-                    TextToken::MinutePadded => {
-                        let minute = minutes as i32;
-                        text = format!("{text}{minute:02}");
-                    }
                 }
             }
             Formatted {
@@ -429,7 +277,7 @@ pub fn format_number(value_original: f64, format: &str, locale: &Locale) -> Form
             if value_abs as i64 == 0 {
                 int_part = vec![];
             }
-            let fract_part = get_fract_part(value_abs, p.precision, int_part.len());
+            let fract_part = get_fract_part(value_abs, p.precision);
             // ln is the number of digits of the integer part of the value
             let ln = int_part.len() as i32;
             // digit count is the number of digit tokens ('0', '?' and '#') to the left of the decimal point
@@ -574,13 +422,6 @@ pub fn format_number(value_original: f64, format: &str, locale: &Locale) -> Form
                     TextToken::MonthLetter => {}
                     TextToken::YearShort => {}
                     TextToken::Year => {}
-                    TextToken::Hour => {}
-                    TextToken::HourPadded => {}
-                    TextToken::Minute => {}
-                    TextToken::MinutePadded => {}
-                    TextToken::Second => {}
-                    TextToken::SecondPadded => {}
-                    TextToken::AMPM => {}
                 }
             }
             Formatted {
@@ -750,10 +591,10 @@ fn parse_date(value: &str) -> Result<(i32, String), String> {
 /// "30.34%" => (0.3034, "0.00%")
 /// 100€ => (100, "100€")
 pub(crate) fn parse_formatted_number(
-    original: &str,
+    value: &str,
     currencies: &[&str],
 ) -> Result<(f64, Option<String>), String> {
-    let value = original.trim();
+    let value = value.trim();
     let scientific_format = "0.00E+00";
 
     // Check if it is a percentage
@@ -805,8 +646,7 @@ pub(crate) fn parse_formatted_number(
         }
     }
 
-    // check if it is a date. NOTE: we don't trim the original here
+    if let Ok((serial_number, format)) = parse_date(value) {
-    if let Ok((serial_number, format)) = parse_date(original) {
         return Ok((serial_number as f64, Some(format)));
     }
 

base/src/formatter/lexer.rs

@@ -26,23 +26,19 @@ pub enum Token {
     Scientific,    // E+
     ScientificMinus, // E-
     General,       // General
-    // Dates and time
+    // Dates
     Day,            // d
     DayPadded,      // dd
     DayNameShort,   // ddd
     DayName,        // dddd+
-    Month,          // m (or minute)
+    Month,          // m
-    MonthPadded,    // mm (or minute padded)
+    MonthPadded,    // mm
     MonthNameShort, // mmm
     MonthName,      // mmmm or mmmmmm+
     MonthLetter,    // mmmmm
     YearShort,      // y or yy
     Year,           // yyy+
-    Hour,           // h
+    // TODO: Hours Minutes and Seconds
-    HourPadded,     // hh
-    Second,         // s
-    SecondPadded,   // ss
-    AMPM,           // AM/PM (or A/P)
     ILLEGAL,
     EOF,
 }
@@ -365,8 +361,8 @@ impl Lexer {
                         self.read_next_char();
                     }
                     match m {
-                        1 => Token::Month,       // (or minute)
+                        1 => Token::Month,
-                        2 => Token::MonthPadded, // (or minute padded)
+                        2 => Token::MonthPadded,
                         3 => Token::MonthNameShort,
                         4 => Token::MonthName,
                         5 => Token::MonthLetter,
@@ -385,63 +381,6 @@ impl Lexer {
                         Token::Year
                     }
                 }
-                'h' => {
-                    let mut h = 1;
-                    while let Some('h') = self.peek_char() {
-                        h += 1;
-                        self.read_next_char();
-                    }
-                    if h == 1 {
-                        Token::Hour
-                    } else if h == 2 {
-                        Token::HourPadded
-                    } else {
-                        self.set_error("Unexpected character after 'h'");
-                        Token::ILLEGAL
-                    }
-                }
-                's' => {
-                    let mut s = 1;
-                    while let Some('s') = self.peek_char() {
-                        s += 1;
-                        self.read_next_char();
-                    }
-                    if s == 1 {
-                        Token::Second
-                    } else if s == 2 {
-                        Token::SecondPadded
-                    } else {
-                        self.set_error("Unexpected character after 's'");
-                        Token::ILLEGAL
-                    }
-                }
-                'A' | 'a' => {
-                    if let Some('M') | Some('m') = self.peek_char() {
-                        self.read_next_char();
-                    } else {
-                        self.set_error("Unexpected character after 'A'");
-                        return Token::ILLEGAL;
-                    }
-                    if let Some('/') = self.peek_char() {
-                        self.read_next_char();
-                    } else {
-                        self.set_error("Unexpected character after 'AM'");
-                        return Token::ILLEGAL;
-                    }
-                    if let Some('P') | Some('p') = self.peek_char() {
-                        self.read_next_char();
-                    } else {
-                        self.set_error("Unexpected character after 'AM'");
-                        return Token::ILLEGAL;
-                    }
-                    if let Some('M') | Some('m') = self.peek_char() {
-                        self.read_next_char();
-                    } else {
-                        self.set_error("Unexpected character after 'AMP'");
-                        return Token::ILLEGAL;
-                    }
-                    Token::AMPM
-                }
                 'g' | 'G' => {
                     for c in "eneral".chars() {
                         let cc = self.read_next_char();

base/src/formatter/parser.rs

@@ -27,13 +27,6 @@ pub enum TextToken {
     MonthLetter,
     YearShort,
     Year,
-    Hour,
-    HourPadded,
-    Minute,
-    MinutePadded,
-    Second,
-    SecondPadded,
-    AMPM,
 }
 pub struct NumberPart {
     pub color: Option<i32>,
@@ -52,7 +45,6 @@ pub struct NumberPart {
 
 pub struct DatePart {
     pub color: Option<i32>,
-    pub use_ampm: bool,
     pub tokens: Vec<TextToken>,
 }
 
@@ -109,7 +101,6 @@ impl Parser {
         let mut digit_count = 0;
         let mut precision = 0;
         let mut is_date = false;
-        let mut use_ampm = false;
         let mut is_number = false;
         let mut found_decimal_dot = false;
         let mut use_thousands = false;
@@ -125,7 +116,6 @@ impl Parser {
         let mut number = 'i';
         let mut index = 0;
         let mut currency = None;
-        let mut is_time = false;
 
         while token != Token::EOF && token != Token::Separator {
             let next_token = self.lexer.next_token();
@@ -210,9 +200,6 @@ impl Parser {
                     index += 1;
                 }
                 Token::Literal(value) => {
-                    if value == ':' {
-                        is_time = true;
-                    }
                     tokens.push(TextToken::Literal(value));
                 }
                 Token::Text(value) => {
@@ -249,22 +236,12 @@ impl Parser {
                     tokens.push(TextToken::MonthName);
                 }
                 Token::Month => {
-                    if is_time {
+                    is_date = true;
-                        // minute
+                    tokens.push(TextToken::Month);
-                        tokens.push(TextToken::Minute);
-                    } else {
-                        is_date = true;
-                        tokens.push(TextToken::Month);
-                    }
                 }
                 Token::MonthPadded => {
-                    if is_time {
+                    is_date = true;
-                        // minute padded
+                    tokens.push(TextToken::MonthPadded);
-                        tokens.push(TextToken::MinutePadded);
-                    } else {
-                        is_date = true;
-                        tokens.push(TextToken::MonthPadded);
-                    }
                 }
                 Token::MonthLetter => {
                     is_date = true;
@@ -278,32 +255,6 @@ impl Parser {
                     is_date = true;
                     tokens.push(TextToken::Year);
                 }
-                Token::Hour => {
-                    is_date = true;
-                    is_time = true;
-                    tokens.push(TextToken::Hour);
-                }
-                Token::HourPadded => {
-                    is_date = true;
-                    is_time = true;
-                    tokens.push(TextToken::HourPadded);
-                }
-                Token::Second => {
-                    is_date = true;
-                    is_time = true;
-                    tokens.push(TextToken::Second);
-                }
-                Token::SecondPadded => {
-                    is_date = true;
-                    is_time = true;
-                    tokens.push(TextToken::SecondPadded);
-                }
-
-                Token::AMPM => {
-                    is_date = true;
-                    use_ampm = true;
-                    tokens.push(TextToken::AMPM);
-                }
                 Token::Scientific => {
                     if !is_scientific {
                         index = 0;
@@ -331,11 +282,7 @@ impl Parser {
             if is_number {
                 return ParsePart::Error(ErrorPart {});
             }
-            ParsePart::Date(DatePart {
+            ParsePart::Date(DatePart { color, tokens })
-                color,
-                use_ampm,
-                tokens,
-            })
         } else {
             ParsePart::Number(NumberPart {
                 color,

base/src/formatter/test/mod.rs

@@ -1,3 +1,2 @@
 mod test_general;
 mod test_parse_formatted_number;
-mod test_time;

base/src/formatter/test/test_time.rs

@@ -1,32 +0,0 @@
-#![allow(clippy::unwrap_used)]
-
-use crate::{
-    formatter::format::format_number,
-    locale::{get_locale, Locale},
-};
-
-fn get_default_locale() -> &'static Locale {
-    get_locale("en").unwrap()
-}
-
-#[test]
-fn simple_test() {
-    let locale = get_default_locale();
-    let format = "h:mm AM/PM";
-    let value = 16.001_423_611_111_11; // =1/86400 => 12:02 AM
-    let formatted = format_number(value, format, locale);
-    assert_eq!(formatted.text, "12:02 AM");
-}
-
-#[test]
-fn padded_vs_unpadded() {
-    let locale = get_default_locale();
-    let padded_format = "hh:mm:ss AM/PM";
-    let unpadded_format = "h:m:s AM/PM";
-    let value = 0.25351851851851853; // => 6:05:04 AM (21904/(24*60*60)) where 21904 = 6 * 3600 + 5*60 + 4
-    let formatted = format_number(value, padded_format, locale);
-    assert_eq!(formatted.text, "06:05:04 AM");
-
-    let formatted = format_number(value, unpadded_format, locale);
-    assert_eq!(formatted.text, "6:5:4 AM");
-}

base/src/functions/database.rs

@@ -1,946 +0,0 @@
-use chrono::Datelike;
-
-use crate::{
-    calc_result::CalcResult,
-    expressions::{parser::Node, token::Error, types::CellReferenceIndex},
-    formatter::dates::date_to_serial_number,
-    Model,
-};
-
-use super::util::{compare_values, from_wildcard_to_regex, result_matches_regex};
-
-impl Model {
-    // =DAVERAGE(database, field, criteria)
-    pub(crate) fn fn_daverage(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
-        if args.len() != 3 {
-            return CalcResult::new_args_number_error(cell);
-        }
-
-        let (db_left, db_right) = match self.get_reference(&args[0], cell) {
-            Ok(r) => (r.left, r.right),
-            Err(e) => return e,
-        };
-
-        let field_col = match self.resolve_db_field_column(db_left, db_right, &args[1], cell) {
-            Ok(c) => c,
-            Err(e) => return e,
-        };
-
-        let criteria = match self.get_reference(&args[2], cell) {
-            Ok(r) => (r.left, r.right),
-            Err(e) => return e,
-        };
-
-        if db_right.row <= db_left.row {
-            // no data rows
-            return CalcResult::Error {
-                error: Error::VALUE,
-                origin: cell,
-                message: "No data rows in database".to_string(),
-            };
-        }
-
-        let mut sum = 0.0f64;
-        let mut count = 0usize;
-
-        let mut row = db_left.row + 1; // skip header
-        while row <= db_right.row {
-            if self.db_row_matches_criteria(db_left, db_right, row, criteria) {
-                let v = self.evaluate_cell(CellReferenceIndex {
-                    sheet: db_left.sheet,
-                    row,
-                    column: field_col,
-                });
-                if let CalcResult::Number(n) = v {
-                    if n.is_finite() {
-                        sum += n;
-                        count += 1;
-                    }
-                }
-            }
-            row += 1;
-        }
-
-        if count == 0 {
-            return CalcResult::Error {
-                error: Error::DIV,
-                origin: cell,
-                message: "No numeric values matched criteria".to_string(),
-            };
-        }
-
-        CalcResult::Number(sum / count as f64)
-    }
-
-    // =DCOUNT(database, field, criteria)
-    // Counts numeric entries in the field for rows that match criteria
-    pub(crate) fn fn_dcount(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
-        if args.len() != 3 {
-            return CalcResult::new_args_number_error(cell);
-        }
-
-        let (db_left, db_right) = match self.get_reference(&args[0], cell) {
-            Ok(r) => (r.left, r.right),
-            Err(e) => return e,
-        };
-
-        let field_col = match self.resolve_db_field_column(db_left, db_right, &args[1], cell) {
-            Ok(c) => c,
-            Err(e) => return e,
-        };
-
-        let criteria = match self.get_reference(&args[2], cell) {
-            Ok(r) => (r.left, r.right),
-            Err(e) => return e,
-        };
-
-        if db_right.row <= db_left.row {
-            // no data rows
-            return CalcResult::Error {
-                error: Error::VALUE,
-                origin: cell,
-                message: "No data rows in database".to_string(),
-            };
-        }
-
-        let mut count = 0usize;
-        let mut row = db_left.row + 1; // skip header
-        while row <= db_right.row {
-            if self.db_row_matches_criteria(db_left, db_right, row, criteria) {
-                let v = self.evaluate_cell(CellReferenceIndex {
-                    sheet: db_left.sheet,
-                    row,
-                    column: field_col,
-                });
-                if matches!(v, CalcResult::Number(_)) {
-                    count += 1;
-                }
-            }
-            row += 1;
-        }
-
-        CalcResult::Number(count as f64)
-    }
-
-    // =DGET(database, field, criteria)
-    // Returns the (single) field value for the unique matching row
-    pub(crate) fn fn_dget(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
-        if args.len() != 3 {
-            return CalcResult::new_args_number_error(cell);
-        }
-
-        let (db_left, db_right) = match self.get_reference(&args[0], cell) {
-            Ok(r) => (r.left, r.right),
-            Err(e) => return e,
-        };
-
-        let field_col = match self.resolve_db_field_column(db_left, db_right, &args[1], cell) {
-            Ok(c) => c,
-            Err(e) => return e,
-        };
-
-        let criteria = match self.get_reference(&args[2], cell) {
-            Ok(r) => (r.left, r.right),
-            Err(e) => return e,
-        };
-
-        if db_right.row <= db_left.row {
-            // no data rows
-            return CalcResult::Error {
-                error: Error::VALUE,
-                origin: cell,
-                message: "No data rows in database".to_string(),
-            };
-        }
-
-        let mut result: Option<CalcResult> = None;
-        let mut matches = 0usize;
-
-        let mut row = db_left.row + 1;
-        while row <= db_right.row {
-            if self.db_row_matches_criteria(db_left, db_right, row, criteria) {
-                matches += 1;
-                if matches > 1 {
-                    return CalcResult::Error {
-                        error: Error::NUM,
-                        origin: cell,
-                        message: "More than one matching record".to_string(),
-                    };
-                }
-                result = Some(self.evaluate_cell(CellReferenceIndex {
-                    sheet: db_left.sheet,
-                    row,
-                    column: field_col,
-                }));
-            }
-            row += 1;
-        }
-
-        match (matches, result) {
-            (0, _) | (_, None) => CalcResult::Error {
-                error: Error::VALUE,
-                origin: cell,
-                message: "No matching record".to_string(),
-            },
-            (_, Some(v)) => v,
-        }
-    }
-
-    // =DMAX(database, field, criteria)
-    pub(crate) fn fn_dmax(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
-        self.db_extreme(args, cell, true)
-    }
-
-    // =DMIN(database, field, criteria)
-    pub(crate) fn fn_dmin(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
-        self.db_extreme(args, cell, false)
-    }
-
-    // =DSUM(database, field, criteria)
-    pub(crate) fn fn_dsum(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
-        if args.len() != 3 {
-            return CalcResult::new_args_number_error(cell);
-        }
-
-        let (db_left, db_right) = match self.get_reference(&args[0], cell) {
-            Ok(r) => (r.left, r.right),
-            Err(e) => return e,
-        };
-
-        let field_col = match self.resolve_db_field_column(db_left, db_right, &args[1], cell) {
-            Ok(c) => c,
-            Err(e) => return e,
-        };
-
-        let criteria = match self.get_reference(&args[2], cell) {
-            Ok(r) => (r.left, r.right),
-            Err(e) => return e,
-        };
-
-        if db_right.row <= db_left.row {
-            // no data rows
-            return CalcResult::Error {
-                error: Error::VALUE,
-                origin: cell,
-                message: "No data rows in database".to_string(),
-            };
-        }
-
-        let mut sum = 0.0;
-
-        // skip header
-        let mut row = db_left.row + 1;
-        while row <= db_right.row {
-            if self.db_row_matches_criteria(db_left, db_right, row, criteria) {
-                let v = self.evaluate_cell(CellReferenceIndex {
-                    sheet: db_left.sheet,
-                    row,
-                    column: field_col,
-                });
-                if let CalcResult::Number(n) = v {
-                    if n.is_finite() {
-                        sum += n;
-                    }
-                }
-            }
-            row += 1;
-        }
-
-        CalcResult::Number(sum)
-    }
-
-    // =DCOUNTA(database, field, criteria)
-    // Counts non-empty entries (any type) in the field for rows that match criteria
-    pub(crate) fn fn_dcounta(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
-        if args.len() != 3 {
-            return CalcResult::new_args_number_error(cell);
-        }
-
-        let (db_left, db_right) = match self.get_reference(&args[0], cell) {
-            Ok(r) => (r.left, r.right),
-            Err(e) => return e,
-        };
-
-        let field_col = match self.resolve_db_field_column(db_left, db_right, &args[1], cell) {
-            Ok(c) => c,
-            Err(e) => return e,
-        };
-
-        let criteria = match self.get_reference(&args[2], cell) {
-            Ok(r) => (r.left, r.right),
-            Err(e) => return e,
-        };
-
-        if db_right.row <= db_left.row {
-            // no data rows
-            return CalcResult::Error {
-                error: Error::VALUE,
-                origin: cell,
-                message: "No data rows in database".to_string(),
-            };
-        }
-
-        let mut count = 0;
-        for row in (db_left.row + 1)..=db_right.row {
-            if self.db_row_matches_criteria(db_left, db_right, row, criteria) {
-                let v = self.evaluate_cell(CellReferenceIndex {
-                    sheet: db_left.sheet,
-                    row,
-                    column: field_col,
-                });
-                if !matches!(v, CalcResult::EmptyCell | CalcResult::EmptyArg) {
-                    count += 1;
-                }
-            }
-        }
-
-        CalcResult::Number(count as f64)
-    }
-
-    // =DPRODUCT(database, field, criteria)
-    pub(crate) fn fn_dproduct(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
-        if args.len() != 3 {
-            return CalcResult::new_args_number_error(cell);
-        }
-
-        let (db_left, db_right) = match self.get_reference(&args[0], cell) {
-            Ok(r) => (r.left, r.right),
-            Err(e) => return e,
-        };
-
-        let field_col = match self.resolve_db_field_column(db_left, db_right, &args[1], cell) {
-            Ok(c) => c,
-            Err(e) => return e,
-        };
-
-        let criteria = match self.get_reference(&args[2], cell) {
-            Ok(r) => (r.left, r.right),
-            Err(e) => return e,
-        };
-
-        if db_right.row <= db_left.row {
-            // no data rows
-            return CalcResult::Error {
-                error: Error::VALUE,
-                origin: cell,
-                message: "No data rows in database".to_string(),
-            };
-        }
-
-        let mut product = 1.0f64;
-        let mut has_numeric = false;
-
-        let mut row = db_left.row + 1; // skip header
-        while row <= db_right.row {
-            if self.db_row_matches_criteria(db_left, db_right, row, criteria) {
-                let v = self.evaluate_cell(CellReferenceIndex {
-                    sheet: db_left.sheet,
-                    row,
-                    column: field_col,
-                });
-                if let CalcResult::Number(n) = v {
-                    if n.is_finite() {
-                        product *= n;
-                        has_numeric = true;
-                    }
-                }
-            }
-            row += 1;
-        }
-
-        // Excel returns 0 when no rows / no numeric values match for DPRODUCT
-        if has_numeric {
-            CalcResult::Number(product)
-        } else {
-            CalcResult::Number(0.0)
-        }
-    }
-
-    // Small internal helper for DSTDEV / DVAR
-    // Collects sum, sum of squares, and count of numeric values in the field
-    // for rows that match the criteria.
-    fn db_numeric_stats(
-        &mut self,
-        args: &[Node],
-        cell: CellReferenceIndex,
-    ) -> Result<(f64, f64, usize), CalcResult> {
-        if args.len() != 3 {
-            return Err(CalcResult::new_args_number_error(cell));
-        }
-
-        let (db_left, db_right) = match self.get_reference(&args[0], cell) {
-            Ok(r) => (r.left, r.right),
-            Err(e) => return Err(e),
-        };
-
-        let field_col = self.resolve_db_field_column(db_left, db_right, &args[1], cell)?;
-
-        let criteria = match self.get_reference(&args[2], cell) {
-            Ok(r) => (r.left, r.right),
-            Err(e) => return Err(e),
-        };
-
-        if db_right.row <= db_left.row {
-            // no data rows
-            return Err(CalcResult::Error {
-                error: Error::VALUE,
-                origin: cell,
-                message: "No data rows in database".to_string(),
-            });
-        }
-
-        let mut sum = 0.0f64;
-        let mut sumsq = 0.0f64;
-        let mut count = 0usize;
-
-        let mut row = db_left.row + 1; // skip header
-        while row <= db_right.row {
-            if self.db_row_matches_criteria(db_left, db_right, row, criteria) {
-                let v = self.evaluate_cell(CellReferenceIndex {
-                    sheet: db_left.sheet,
-                    row,
-                    column: field_col,
-                });
-                if let CalcResult::Number(n) = v {
-                    if n.is_finite() {
-                        sum += n;
-                        sumsq += n * n;
-                        count += 1;
-                    }
-                }
-            }
-            row += 1;
-        }
-
-        Ok((sum, sumsq, count))
-    }
-
-    // =DSTDEV(database, field, criteria)
-    // Sample standard deviation of matching numeric values
-    pub(crate) fn fn_dstdev(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
-        let (sum, sumsq, count) = match self.db_numeric_stats(args, cell) {
-            Ok(stats) => stats,
-            Err(e) => return e,
-        };
-
-        // Excel behaviour: #DIV/0! if 0 or 1 numeric values match
-        if count < 2 {
-            return CalcResult::Error {
-                error: Error::DIV,
-                origin: cell,
-                message: "Not enough numeric values matched criteria".to_string(),
-            };
-        }
-
-        let n = count as f64;
-        let var = (sumsq - (sum * sum) / n) / (n - 1.0);
-        let var = if var < 0.0 { 0.0 } else { var };
-        CalcResult::Number(var.sqrt())
-    }
-
-    // =DVAR(database, field, criteria)
-    // Sample variance of matching numeric values
-    pub(crate) fn fn_dvar(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
-        let (sum, sumsq, count) = match self.db_numeric_stats(args, cell) {
-            Ok(stats) => stats,
-            Err(e) => return e,
-        };
-
-        // Excel behaviour: #DIV/0! if 0 or 1 numeric values match
-        if count < 2 {
-            return CalcResult::Error {
-                error: Error::DIV,
-                origin: cell,
-                message: "Not enough numeric values matched criteria".to_string(),
-            };
-        }
-
-        let n = count as f64;
-        let var = (sumsq - (sum * sum) / n) / (n - 1.0);
-        let var = if var < 0.0 { 0.0 } else { var };
-        CalcResult::Number(var)
-    }
-
-    // =DSTDEVP(database, field, criteria)
-    // Population standard deviation of matching numeric values
-    pub(crate) fn fn_dstdevp(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
-        let (sum, sumsq, count) = match self.db_numeric_stats(args, cell) {
-            Ok(stats) => stats,
-            Err(e) => return e,
-        };
-
-        // Excel behaviour: #DIV/0! if no numeric values match
-        if count == 0 {
-            return CalcResult::Error {
-                error: Error::DIV,
-                origin: cell,
-                message: "No numeric values matched criteria".to_string(),
-            };
-        }
-
-        let n = count as f64;
-        let var = (sumsq - (sum * sum) / n) / n;
-        let var = if var < 0.0 { 0.0 } else { var };
-        CalcResult::Number(var.sqrt())
-    }
-
-    // =DVARP(database, field, criteria)
-    // Population variance of matching numeric values
-    pub(crate) fn fn_dvarp(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
-        let (sum, sumsq, count) = match self.db_numeric_stats(args, cell) {
-            Ok(stats) => stats,
-            Err(e) => return e,
-        };
-
-        // Excel behaviour: #DIV/0! if no numeric values match
-        if count == 0 {
-            return CalcResult::Error {
-                error: Error::DIV,
-                origin: cell,
-                message: "No numeric values matched criteria".to_string(),
-            };
-        }
-
-        let n = count as f64;
-        let var = (sumsq - (sum * sum) / n) / n;
-        let var = if var < 0.0 { 0.0 } else { var };
-        CalcResult::Number(var)
-    }
-
-    /// Resolve the "field" (2nd arg) to an absolute column index (i32) within the sheet.
-    /// Field can be a number (1-based index) or a header name (case-insensitive).
-    /// Returns the absolute column index, not a 1-based offset within the database range.
-    fn resolve_db_field_column(
-        &mut self,
-        db_left: CellReferenceIndex,
-        db_right: CellReferenceIndex,
-        field_arg: &Node,
-        cell: CellReferenceIndex,
-    ) -> Result<i32, CalcResult> {
-        let field_column_name = match self.evaluate_node_in_context(field_arg, cell) {
-            CalcResult::String(s) => s.to_lowercase(),
-            CalcResult::Number(index) => {
-                let index = index.floor() as i32;
-                if index < 1 || db_left.column + index - 1 > db_right.column {
-                    return Err(CalcResult::Error {
-                        error: Error::VALUE,
-                        origin: cell,
-                        message: "Field index out of range".to_string(),
-                    });
-                }
-                return Ok(db_left.column + index - 1);
-            }
-            CalcResult::Boolean(b) => {
-                return if b {
-                    Ok(db_left.column)
-                } else {
-                    // Index 0 is out of range
-                    Err(CalcResult::Error {
-                        error: Error::VALUE,
-                        origin: cell,
-                        message: "Invalid field specifier".to_string(),
-                    })
-                };
-            }
-            error @ CalcResult::Error { .. } => {
-                return Err(error);
-            }
-            CalcResult::Range { .. } => {
-                return Err(CalcResult::Error {
-                    error: Error::NIMPL,
-                    origin: cell,
-                    message: "Arrays not supported yet".to_string(),
-                })
-            }
-            CalcResult::EmptyCell | CalcResult::EmptyArg => "".to_string(),
-            CalcResult::Array(_) => {
-                return Err(CalcResult::Error {
-                    error: Error::NIMPL,
-                    origin: cell,
-                    message: "Arrays not supported yet".to_string(),
-                })
-            }
-        };
-
-        // We search in the database a column whose header matches field_column_name
-        for column in db_left.column..=db_right.column {
-            let v = self.evaluate_cell(CellReferenceIndex {
-                sheet: db_left.sheet,
-                row: db_left.row,
-                column,
-            });
-            match &v {
-                CalcResult::String(s) => {
-                    if s.to_lowercase() == field_column_name {
-                        return Ok(column);
-                    }
-                }
-                CalcResult::Number(n) => {
-                    if field_column_name == n.to_string() {
-                        return Ok(column);
-                    }
-                }
-                CalcResult::Boolean(b) => {
-                    if field_column_name == b.to_string() {
-                        return Ok(column);
-                    }
-                }
-                CalcResult::Error { .. }
-                | CalcResult::Range { .. }
-                | CalcResult::EmptyCell
-                | CalcResult::EmptyArg
-                | CalcResult::Array(_) => {}
-            }
-        }
-
-        Err(CalcResult::Error {
-            error: Error::VALUE,
-            origin: cell,
-            message: "Field header not found".to_string(),
-        })
-    }
-
-    /// Check whether a database row matches the criteria range.
-    /// Criteria logic: OR across criteria rows; AND across columns within a row.
-    fn db_row_matches_criteria(
-        &mut self,
-        db_left: CellReferenceIndex,
-        db_right: CellReferenceIndex,
-        row: i32,
-        criteria: (CellReferenceIndex, CellReferenceIndex),
-    ) -> bool {
-        let (c_left, c_right) = criteria;
-
-        // Read criteria headers (first row of criteria range)
-        // Map header name (lowercased) -> db column (if exists)
-        let mut crit_cols: Vec<i32> = Vec::new();
-        let mut header_count = 0;
-        // We cover the criteria table:
-        //  headerA | headerB | ...
-        //  critA1  | critA2  | ...
-        //  critB1  | critB2  | ...
-        //  ...
-        for column in c_left.column..=c_right.column {
-            let cell = CellReferenceIndex {
-                sheet: c_left.sheet,
-                row: c_left.row,
-                column,
-            };
-            let criteria_header = self.evaluate_cell(cell);
-            if let Ok(s) = self.cast_to_string(criteria_header, cell) {
-                // Non-empty string header. If the header is non string we skip it
-                header_count += 1;
-                let wanted = s.to_lowercase();
-
-                // Find corresponding Database column
-                let mut found = false;
-                for db_column in db_left.column..=db_right.column {
-                    let db_header = self.evaluate_cell(CellReferenceIndex {
-                        sheet: db_left.sheet,
-                        row: db_left.row,
-                        column: db_column,
-                    });
-                    if let Ok(hs) = self.cast_to_string(db_header, cell) {
-                        if hs.to_lowercase() == wanted {
-                            crit_cols.push(db_column);
-                            found = true;
-                            break;
-                        }
-                    }
-                }
-                if !found {
-                    // that means the criteria column has no matching DB column
-                    // If the criteria condition is empty then we remove this condition
-                    // otherwise this condition can never be satisfied
-                    // We evaluate all criteria rows to see if any is non-empty
-                    let mut has_non_empty = false;
-                    for r in (c_left.row + 1)..=c_right.row {
-                        let ccell = self.evaluate_cell(CellReferenceIndex {
-                            sheet: c_left.sheet,
-                            row: r,
-                            column,
-                        });
-                        if !matches!(ccell, CalcResult::EmptyCell | CalcResult::EmptyArg) {
-                            has_non_empty = true;
-                            break;
-                        }
-                    }
-                    if has_non_empty {
-                        // This criteria column can never be satisfied
-                        header_count -= 1;
-                    }
-                }
-            };
-        }
-
-        if c_right.row <= c_left.row {
-            // If no criteria rows (only headers), everything matches
-            return true;
-        }
-
-        if header_count == 0 {
-            // If there are not "String" headers, nothing matches
-            // NB: There might be String headers that do not match any DB columns,
-            // in that case everything matches.
-            return false;
-        }
-
-        // Evaluate each criteria row (OR)
-        for r in (c_left.row + 1)..=c_right.row {
-            // AND across columns for this criteria row
-            let mut and_ok = true;
-
-            for (offset, db_col) in crit_cols.iter().enumerate() {
-                // Criteria cell
-                let ccell = self.evaluate_cell(CellReferenceIndex {
-                    sheet: c_left.sheet,
-                    row: r,
-                    column: c_left.column + offset as i32,
-                });
-
-                // Empty criteria cell -> ignored
-                if matches!(ccell, CalcResult::EmptyCell | CalcResult::EmptyArg) {
-                    continue;
-                }
-
-                // Database value for this row/column
-                let db_val = self.evaluate_cell(CellReferenceIndex {
-                    sheet: db_left.sheet,
-                    row,
-                    column: *db_col,
-                });
-
-                if !self.criteria_cell_matches(&db_val, &ccell) {
-                    and_ok = false;
-                    break;
-                }
-            }
-
-            if and_ok {
-                // This criteria row satisfied (OR)
-                return true;
-            }
-        }
-
-        // none matched
-        false
-    }
-
-    /// Implements Excel-like criteria matching for a single value.
-    /// Supports prefixes: <>, >=, <=, >, <, = ; wildcards * and ? for string equals.
-    fn criteria_cell_matches(&self, db_val: &CalcResult, crit_cell: &CalcResult) -> bool {
-        // Convert the criteria cell to a string for operator parsing if possible,
-        // otherwise fall back to equality via compare_values.
-
-        let mut criteria = match crit_cell {
-            CalcResult::String(s) => s.trim().to_string(),
-            CalcResult::Number(n) => {
-                // treat as equality with number
-                return match db_val {
-                    CalcResult::Number(v) => (*v - *n).abs() <= f64::EPSILON,
-                    _ => false,
-                };
-            }
-            CalcResult::Boolean(b) => {
-                // check equality with boolean
-                return match db_val {
-                    CalcResult::Boolean(v) => *v == *b,
-                    _ => false,
-                };
-            }
-            CalcResult::EmptyCell | CalcResult::EmptyArg => "".to_string(),
-            CalcResult::Error { .. } => return false,
-            CalcResult::Range { .. } | CalcResult::Array(_) => return false,
-        };
-
-        // Detect operator prefix
-        let mut op = "="; // default equality (with wildcard semantics for strings)
-        let prefixes = ["<>", ">=", "<=", ">", "<", "="];
-        for p in prefixes.iter() {
-            if criteria.starts_with(p) {
-                op = p;
-                criteria = criteria[p.len()..].trim().to_string();
-                break;
-            }
-        }
-
-        // Is it a number?
-        let rhs_num = criteria.parse::<f64>().ok();
-
-        // Is it a date?
-        // FIXME: We should parse dates according to locale settings
-        let rhs_date = criteria.parse::<chrono::NaiveDate>().ok();
-
-        match op {
-            ">" | ">=" | "<" | "<=" => {
-                if let Some(d) = rhs_date {
-                    // date comparison
-                    let serial = match date_to_serial_number(d.day(), d.month(), d.year()) {
-                        Ok(sn) => sn as f64,
-                        Err(_) => return false,
-                    };
-
-                    if let CalcResult::Number(n) = db_val {
-                        match op {
-                            ">" => *n > serial,
-                            ">=" => *n >= serial,
-                            "<" => *n < serial,
-                            "<=" => *n <= serial,
-                            _ => false,
-                        }
-                    } else {
-                        false
-                    }
-                } else if let Some(t) = rhs_num {
-                    // numeric comparison
-                    if let CalcResult::Number(n) = db_val {
-                        match op {
-                            ">" => *n > t,
-                            ">=" => *n >= t,
-                            "<" => *n < t,
-                            "<=" => *n <= t,
-                            _ => false,
-                        }
-                    } else {
-                        false
-                    }
-                } else {
-                    // string comparison (case-insensitive) using compare_values semantics
-                    let rhs = CalcResult::String(criteria.to_lowercase());
-                    let lhs = match db_val {
-                        CalcResult::String(s) => CalcResult::String(s.to_lowercase()),
-                        x => x.clone(),
-                    };
-                    let c = compare_values(&lhs, &rhs);
-                    match op {
-                        ">" => c > 0,
-                        ">=" => c >= 0,
-                        "<" => c < 0,
-                        "<=" => c <= 0,
-                        _ => false,
-                    }
-                }
-            }
-            "<>" => {
-                // not equal (with wildcard semantics for strings)
-                // If rhs has wildcards and db_val is string, do regex; else use compare_values != 0
-                if let CalcResult::String(s) = db_val {
-                    if criteria.contains('*') || criteria.contains('?') {
-                        if let Ok(re) = from_wildcard_to_regex(&criteria.to_lowercase(), true) {
-                            return !result_matches_regex(
-                                &CalcResult::String(s.to_lowercase()),
-                                &re,
-                            );
-                        }
-                    }
-                }
-                let rhs = if let Some(n) = rhs_num {
-                    CalcResult::Number(n)
-                } else {
-                    CalcResult::String(criteria.to_lowercase())
-                };
-                let lhs = match db_val {
-                    CalcResult::String(s) => CalcResult::String(s.to_lowercase()),
-                    x => x.clone(),
-                };
-                compare_values(&lhs, &rhs) != 0
-            }
-            _ => {
-                // equality. For strings, support wildcards (*, ?)
-                if let Some(n) = rhs_num {
-                    // numeric equals
-                    if let CalcResult::Number(m) = db_val {
-                        (*m - n).abs() <= f64::EPSILON
-                    } else {
-                        compare_values(db_val, &CalcResult::Number(n)) == 0
-                    }
-                } else {
-                    // textual/boolean equals (case-insensitive), wildcard-enabled for strings
-                    if let CalcResult::String(s) = db_val {
-                        if criteria.contains('*') || criteria.contains('?') {
-                            if let Ok(re) = from_wildcard_to_regex(&criteria.to_lowercase(), true) {
-                                return result_matches_regex(
-                                    &CalcResult::String(s.to_lowercase()),
-                                    &re,
-                                );
-                            }
-                        }
-                        // This is weird but we only need to check if "starts with" for equality
-                        return s.to_lowercase().starts_with(&criteria.to_lowercase());
-                    }
-                    // Fallback: compare_values equality
-                    compare_values(db_val, &CalcResult::String(criteria.to_lowercase())) == 0
-                }
-            }
-        }
-    }
-
-    /// Shared implementation for DMAX/DMIN
-    fn db_extreme(
-        &mut self,
-        args: &[Node],
-        cell: CellReferenceIndex,
-        want_max: bool,
-    ) -> CalcResult {
-        if args.len() != 3 {
-            return CalcResult::new_args_number_error(cell);
-        }
-
-        let (db_left, db_right) = match self.get_reference(&args[0], cell) {
-            Ok(r) => (r.left, r.right),
-            Err(e) => return e,
-        };
-
-        let field_col = match self.resolve_db_field_column(db_left, db_right, &args[1], cell) {
-            Ok(c) => c,
-            Err(e) => return e,
-        };
-
-        let criteria = match self.get_reference(&args[2], cell) {
-            Ok(r) => (r.left, r.right),
-            Err(e) => return e,
-        };
-
-        if db_right.row <= db_left.row {
-            // no data rows
-            return CalcResult::Error {
-                error: Error::VALUE,
-                origin: cell,
-                message: "No data rows in database".to_string(),
-            };
-        }
-
-        let mut best: Option<f64> = None;
-
-        let mut row = db_left.row + 1;
-        while row <= db_right.row {
-            if self.db_row_matches_criteria(db_left, db_right, row, criteria) {
-                let v = self.evaluate_cell(CellReferenceIndex {
-                    sheet: db_left.sheet,
-                    row,
-                    column: field_col,
-                });
-                if let CalcResult::Number(value) = v {
-                    if value.is_finite() {
-                        best = Some(match best {
-                            None => value,
-                            Some(cur) => {
-                                if want_max {
-                                    value.max(cur)
-                                } else {
-                                    value.min(cur)
-                                }
-                            }
-                        });
-                    }
-                }
-            }
-            row += 1;
-        }
-
-        match best {
-            Some(v) => CalcResult::Number(v),
-            None => CalcResult::Number(0.0),
-        }
-    }
-}

base/src/functions/engineering/bessel.rs

@@ -1,12 +1,10 @@
-use statrs::function::erf::{erf, erfc};
-
 use crate::{
     calc_result::CalcResult,
     expressions::{parser::Node, token::Error, types::CellReferenceIndex},
     model::Model,
 };
 
-use super::transcendental::{bessel_i, bessel_j, bessel_k, bessel_y};
+use super::transcendental::{bessel_i, bessel_j, bessel_k, bessel_y, erf};
 // https://root.cern/doc/v610/TMath_8cxx_source.html
 
 // Notice that the parameters for Bessel functions in Excel and here have inverted order
@@ -162,7 +160,7 @@ impl Model {
             Ok(f) => f,
             Err(s) => return s,
         };
-        CalcResult::Number(erfc(x))
+        CalcResult::Number(1.0 - erf(x))
     }
 
     pub(crate) fn fn_erfcprecise(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
@@ -173,6 +171,6 @@ impl Model {
             Ok(f) => f,
             Err(s) => return s,
         };
-        CalcResult::Number(erfc(x))
+        CalcResult::Number(1.0 - erf(x))
     }
 }

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

@@ -0,0 +1,53 @@
+pub(crate) fn erf(x: f64) -> f64 {
+    let cof = vec![
+        -1.3026537197817094,
+        6.419_697_923_564_902e-1,
+        1.9476473204185836e-2,
+        -9.561_514_786_808_63e-3,
+        -9.46595344482036e-4,
+        3.66839497852761e-4,
+        4.2523324806907e-5,
+        -2.0278578112534e-5,
+        -1.624290004647e-6,
+        1.303655835580e-6,
+        1.5626441722e-8,
+        -8.5238095915e-8,
+        6.529054439e-9,
+        5.059343495e-9,
+        -9.91364156e-10,
+        -2.27365122e-10,
+        9.6467911e-11,
+        2.394038e-12,
+        -6.886027e-12,
+        8.94487e-13,
+        3.13092e-13,
+        -1.12708e-13,
+        3.81e-16,
+        7.106e-15,
+        -1.523e-15,
+        -9.4e-17,
+        1.21e-16,
+        -2.8e-17,
+    ];
+
+    let mut d = 0.0;
+    let mut dd = 0.0;
+
+    let x_abs = x.abs();
+
+    let t = 2.0 / (2.0 + x_abs);
+    let ty = 4.0 * t - 2.0;
+
+    for j in (1..=cof.len() - 1).rev() {
+        let tmp = d;
+        d = ty * d - dd + cof[j];
+        dd = tmp;
+    }
+
+    let res = t * f64::exp(-x_abs * x_abs + 0.5 * (cof[0] + ty * d) - dd);
+    if x < 0.0 {
+        res - 1.0
+    } else {
+        1.0 - res
+    }
+}

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

@@ -4,6 +4,7 @@ mod bessel_j1_y1;
 mod bessel_jn_yn;
 mod bessel_k;
 mod bessel_util;
+mod erf;
 
 #[cfg(test)]
 mod test_bessel;
@@ -12,3 +13,4 @@ pub(crate) use bessel_i::bessel_i;
 pub(crate) use bessel_jn_yn::jn as bessel_j;
 pub(crate) use bessel_jn_yn::yn as bessel_y;
 pub(crate) use bessel_k::bessel_k;
+pub(crate) use erf::erf;

base/src/functions/information.rs

@@ -1,6 +1,6 @@
 use crate::{
     calc_result::CalcResult,
-    expressions::{parser::Node, token::Error, types::CellReferenceIndex, utils::number_to_column},
+    expressions::{parser::Node, token::Error, types::CellReferenceIndex},
     model::{Model, ParsedDefinedName},
 };
 
@@ -320,150 +320,4 @@ impl Model {
             message: "Invalid name".to_string(),
         }
     }
-
-    pub(crate) fn fn_n(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
-        let arg_count = args.len();
-        if arg_count != 1 {
-            return CalcResult::new_args_number_error(cell);
-        }
-        let value = match self.evaluate_node_in_context(&args[0], cell) {
-            CalcResult::Number(n) => n,
-            CalcResult::String(_) => 0.0,
-            CalcResult::Boolean(f) => {
-                if f {
-                    1.0
-                } else {
-                    0.0
-                }
-            }
-            CalcResult::EmptyCell | CalcResult::EmptyArg => 0.0,
-            error @ CalcResult::Error { .. } => return error,
-            CalcResult::Range { .. } => {
-                return CalcResult::Error {
-                    error: Error::NIMPL,
-                    origin: cell,
-                    message: "Arrays not supported yet".to_string(),
-                }
-            }
-            CalcResult::Array(_) => {
-                return CalcResult::Error {
-                    error: Error::NIMPL,
-                    origin: cell,
-                    message: "Arrays not supported yet".to_string(),
-                }
-            }
-        };
-
-        CalcResult::Number(value)
-    }
-
-    pub(crate) fn fn_sheets(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
-        let arg_count = args.len();
-        if arg_count > 1 {
-            return CalcResult::new_args_number_error(cell);
-        }
-        if arg_count == 1 {
-            return CalcResult::Error {
-                error: Error::NIMPL,
-                origin: cell,
-                message: "Sheets function with an argument is not implemented".to_string(),
-            };
-        }
-        let sheet_count = self.workbook.worksheets.len() as f64;
-        CalcResult::Number(sheet_count)
-    }
-
-    pub(crate) fn fn_cell(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
-        let arg_count = args.len();
-        if arg_count == 0 || arg_count > 2 {
-            return CalcResult::new_args_number_error(cell);
-        }
-        let reference = if arg_count == 2 {
-            match self.evaluate_node_with_reference(&args[1], cell) {
-                CalcResult::Range { left, right: _ } => {
-                    // we just take the left cell of the range
-                    left
-                }
-                _ => {
-                    return CalcResult::Error {
-                        error: Error::VALUE,
-                        origin: cell,
-                        message: "Argument must be a reference".to_string(),
-                    }
-                }
-            }
-        } else {
-            CellReferenceIndex {
-                sheet: cell.sheet,
-                row: cell.row,
-                column: cell.column,
-            }
-        };
-        let info_type = match self.get_string(&args[0], cell) {
-            Ok(s) => s.to_uppercase(),
-            Err(e) => return e,
-        };
-        match info_type.as_str() {
-            "ADDRESS" => {
-                if reference.sheet != cell.sheet {
-                    return CalcResult::Error {
-                        error: Error::NIMPL,
-                        origin: cell,
-                        message: "References to other sheets not implemented".to_string(),
-                    };
-                }
-                let column = match number_to_column(reference.column) {
-                    Some(c) => c,
-                    None => {
-                        return CalcResult::Error {
-                            error: Error::VALUE,
-                            origin: cell,
-                            message: "Invalid column".to_string(),
-                        }
-                    }
-                };
-                let address = format!("${}${}", column, reference.row);
-                CalcResult::String(address)
-            }
-            "COL" => CalcResult::Number(reference.column as f64),
-            "COLOR" | "FILENAME" | "FORMAT" | "PARENTHESES" | "PREFIX" | "PROTECT" | "WIDTH" => {
-                CalcResult::Error {
-                    error: Error::VALUE,
-                    origin: cell,
-                    message: "info_type not implemented".to_string(),
-                }
-            }
-            "CONTENTS" => self.evaluate_cell(reference),
-            "ROW" => CalcResult::Number(reference.row as f64),
-            "TYPE" => {
-                let cell_type = match self.evaluate_cell(reference) {
-                    CalcResult::EmptyCell => "b",
-                    CalcResult::String(_) => "l",
-                    CalcResult::Number(_) => "v",
-                    CalcResult::Boolean(_) => "v",
-                    CalcResult::Error { .. } => "v",
-                    CalcResult::Range { .. } => "v",
-                    CalcResult::EmptyArg => "v",
-                    CalcResult::Array(_) => "v",
-                };
-                CalcResult::String(cell_type.to_string())
-            }
-            _ => CalcResult::Error {
-                error: Error::VALUE,
-                origin: cell,
-                message: "Invalid info_type".to_string(),
-            },
-        }
-    }
-
-    pub(crate) fn fn_info(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
-        if args.is_empty() || args.len() > 2 {
-            return CalcResult::new_args_number_error(cell);
-        }
-        CalcResult::Error {
-            error: Error::NIMPL,
-            origin: cell,
-            message: "Info function not implemented".to_string(),
-        }
-    }
 }

base/src/functions/macros.rs

@@ -68,14 +68,14 @@ macro_rules! single_number_fn {
                                 },
                                 // If String, parse to f64 then apply or #VALUE! error
                                 ArrayNode::String(s) => {
-                                    let node = match self.cast_number(&s) {
+                                    let node = match s.parse::<f64>() {
-                                        Some(f) => match $op(f) {
+                                        Ok(f) => match $op(f) {
                                             Ok(x) => ArrayNode::Number(x),
                                             Err(Error::DIV) => ArrayNode::Error(Error::DIV),
                                             Err(Error::VALUE) => ArrayNode::Error(Error::VALUE),
                                             Err(e) => ArrayNode::Error(e),
                                         },
-                                        None => ArrayNode::Error(Error::VALUE),
+                                        Err(_) => ArrayNode::Error(Error::VALUE),
                                     };
                                     data_row.push(node);
                                 }

base/src/functions/math_util.rs

@@ -1,200 +0,0 @@
-/// Parse Roman (classic or Excel variants) → number
-pub fn from_roman(s: &str) -> Result<u32, String> {
-    if s.is_empty() {
-        return Err("empty numeral".into());
-    }
-    fn val(c: char) -> Option<u32> {
-        Some(match c {
-            'I' => 1,
-            'V' => 5,
-            'X' => 10,
-            'L' => 50,
-            'C' => 100,
-            'D' => 500,
-            'M' => 1000,
-            _ => return None,
-        })
-    }
-
-    // Accept the union of subtractive pairs used by the tables above (Excel-compatible).
-    fn allowed_subtractive(a: char, b: char) -> bool {
-        matches!(
-            (a, b),
-            // classic:
-            ('I','V')|('I','X')|('X','L')|('X','C')|('C','D')|('C','M')
-            // Excel forms:
-            |('V','L')|('L','D')|('L','M') // VL, LD, LM
-            |('X','D')|('X','M')          // XD, XM
-            |('V','M')                    // VM
-            |('I','L')|('I','C')|('I','D')|('I','M') // IL, IC, ID, IM
-            |('V','D')|('V','C') // VD, VC
-        )
-    }
-
-    let chars: Vec<char> = s.chars().map(|c| c.to_ascii_uppercase()).collect();
-    let mut total = 0u32;
-    let mut i = 0usize;
-
-    // Repetition rules similar to classic Romans:
-    // V, L, D cannot repeat; I, X, C, M max 3 in a row.
-    let mut last_char: Option<char> = None;
-    let mut run_len = 0usize;
-
-    while i < chars.len() {
-        let c = chars[i];
-        let v = val(c).ok_or_else(|| format!("invalid character '{c}'"))?;
-
-        if Some(c) == last_char {
-            run_len += 1;
-            match c {
-                'V' | 'L' | 'D' => return Err(format!("invalid repetition of '{c}'")),
-                _ if run_len >= 3 => return Err(format!("invalid repetition of '{c}'")),
-                _ => {}
-            }
-        } else {
-            last_char = Some(c);
-            run_len = 0;
-        }
-
-        if i + 1 < chars.len() {
-            let c2 = chars[i + 1];
-            let v2 = val(c2).ok_or_else(|| format!("invalid character '{c2}'"))?;
-            if v < v2 {
-                if !allowed_subtractive(c, c2) {
-                    return Err(format!("invalid subtractive pair '{c}{c2}'"));
-                }
-                // Disallow stacked subtractives like IIV, XXL:
-                if run_len > 0 {
-                    return Err(format!("malformed numeral near position {i}"));
-                }
-                total += v2 - v;
-                i += 2;
-                last_char = None;
-                run_len = 0;
-                continue;
-            }
-        }
-
-        total += v;
-        i += 1;
-    }
-    Ok(total)
-}
-
-/// Classic Roman (strict) encoder used as a base for all forms.
-fn to_roman(mut n: u32) -> Result<String, String> {
-    if !(1..=3999).contains(&n) {
-        return Err("value out of range (must be 1..=3999)".into());
-    }
-
-    const MAP: &[(u32, &str)] = &[
-        (1000, "M"),
-        (900, "CM"),
-        (500, "D"),
-        (400, "CD"),
-        (100, "C"),
-        (90, "XC"),
-        (50, "L"),
-        (40, "XL"),
-        (10, "X"),
-        (9, "IX"),
-        (5, "V"),
-        (4, "IV"),
-        (1, "I"),
-    ];
-
-    let mut out = String::with_capacity(15);
-    for &(val, sym) in MAP {
-        while n >= val {
-            out.push_str(sym);
-            n -= val;
-        }
-        if n == 0 {
-            break;
-        }
-    }
-    Ok(out)
-}
-
-/// Excel/Google Sheets compatible ROMAN(number, [form]) encoder.
-/// `form`: 0..=4 (0=Classic, 4=Simplified).
-pub fn to_roman_with_form(n: u32, form: i32) -> Result<String, String> {
-    let mut s = to_roman(n)?;
-    if form == 0 {
-        return Ok(s);
-    }
-    if !(0..=4).contains(&form) {
-        return Err("form must be between 0 and 4".into());
-    }
-
-    // Base rules (apply for all f >= 1)
-    let base_rules: &[(&str, &str)] = &[
-        // C(D|M)XC -> L$1XL
-        ("CDXC", "LDXL"),
-        ("CMXC", "LMXL"),
-        // C(D|M)L -> L$1
-        ("CDL", "LD"),
-        ("CML", "LM"),
-        // X(L|C)IX -> V$1IV
-        ("XLIX", "VLIV"),
-        ("XCIX", "VCIV"),
-        // X(L|C)V -> V$1
-        ("XLV", "VL"),
-        ("XCV", "VC"),
-    ];
-
-    // Level 2 extra rules
-    let lvl2_rules: &[(&str, &str)] = &[
-        // V(L|C)IV -> I$1
-        ("VLIV", "IL"),
-        ("VCIV", "IC"),
-        // L(D|M)XL -> X$1
-        ("LDXL", "XD"),
-        ("LMXL", "XM"),
-        // L(D|M)VL -> X$1V
-        ("LDVL", "XDV"),
-        ("LMVL", "XMV"),
-        // L(D|M)IL -> X$1IX
-        ("LDIL", "XDIX"),
-        ("LMIL", "XMIX"),
-    ];
-
-    // Level 3 extra rules
-    let lvl3_rules: &[(&str, &str)] = &[
-        // X(D|M)V -> V$1
-        ("XDV", "VD"),
-        ("XMV", "VM"),
-        // X(D|M)IX -> V$1IV
-        ("XDIX", "VDIV"),
-        ("XMIX", "VMIV"),
-    ];
-
-    // Level 4 extra rules
-    let lvl4_rules: &[(&str, &str)] = &[
-        // V(D|M)IV -> I$1
-        ("VDIV", "ID"),
-        ("VMIV", "IM"),
-    ];
-
-    // Helper to apply a batch of (from -> to) globally, in order.
-    fn apply_rules(mut t: String, rules: &[(&str, &str)]) -> String {
-        for (from, to) in rules {
-            if t.contains(from) {
-                t = t.replace(from, to);
-            }
-        }
-        t
-    }
-
-    s = apply_rules(s, base_rules);
-    if form >= 2 {
-        s = apply_rules(s, lvl2_rules);
-    }
-    if form >= 3 {
-        s = apply_rules(s, lvl3_rules);
-    }
-    if form >= 4 {
-        s = apply_rules(s, lvl4_rules);
-    }
-    Ok(s)
-}

base/src/functions/mod.rs

@@ -8,7 +8,6 @@ use crate::{
 };
 
 pub(crate) mod binary_search;
-mod database;
 mod date_and_time;
 mod engineering;
 mod financial;
@@ -17,7 +16,6 @@ mod information;
 mod logical;
 mod lookup_and_reference;
 mod macros;
-mod math_util;
 mod mathematical;
 mod statistical;
 mod subtotal;
@@ -78,43 +76,6 @@ pub enum Function {
     Sumifs,
     Tan,
     Tanh,
-    Acot,
-    Acoth,
-    Cot,
-    Coth,
-    Csc,
-    Csch,
-    Sec,
-    Sech,
-    Exp,
-    Fact,
-    Factdouble,
-    Sign,
-    Radians,
-    Degrees,
-    Int,
-    Even,
-    Odd,
-    Ceiling,
-    CeilingMath,
-    CeilingPrecise,
-    Floor,
-    FloorMath,
-    FloorPrecise,
-    IsoCeiling,
-    Mod,
-    Quotient,
-    Mround,
-    Trunc,
-    Gcd,
-    Lcm,
-    Base,
-    Decimal,
-    Roman,
-    Arabic,
-    Combin,
-    Combina,
-    Sumsq,
 
     // Information
     ErrorType,
@@ -135,11 +96,6 @@ pub enum Function {
     Sheet,
     Type,
 
-    Sheets,
-    N,
-    Cell,
-    Info,
-
     // Lookup and reference
     Hlookup,
     Index,
@@ -192,30 +148,13 @@ pub enum Function {
 
     // Date and time
     Date,
-    Datedif,
-    Datevalue,
     Day,
     Edate,
     Eomonth,
     Month,
-    Time,
-    Timevalue,
-    Hour,
-    Minute,
-    Second,
     Now,
     Today,
     Year,
-    Networkdays,
-    NetworkdaysIntl,
-    Days,
-    Days360,
-    Weekday,
-    Weeknum,
-    Workday,
-    WorkdayIntl,
-    Yearfrac,
-    Isoweeknum,
 
     // Financial
     Cumipmt,
@@ -311,24 +250,10 @@ pub enum Function {
     Delta,
     Gestep,
     Subtotal,
-
-    // Database
-    Daverage,
-    Dcount,
-    Dget,
-    Dmax,
-    Dmin,
-    Dsum,
-    Dcounta,
-    Dproduct,
-    Dstdev,
-    Dvar,
-    Dvarp,
-    Dstdevp,
 }
 
 impl Function {
-    pub fn into_iter() -> IntoIter<Function, 268> {
+    pub fn into_iter() -> IntoIter<Function, 198> {
         [
             Function::And,
             Function::False,
@@ -361,44 +286,12 @@ impl Function {
             Function::Sqrt,
             Function::Sqrtpi,
             Function::Atan2,
-            Function::Acot,
-            Function::Acoth,
-            Function::Cot,
-            Function::Coth,
-            Function::Csc,
-            Function::Csch,
-            Function::Sec,
-            Function::Sech,
             Function::Power,
-            Function::Exp,
-            Function::Fact,
-            Function::Factdouble,
-            Function::Sign,
-            Function::Int,
-            Function::Even,
-            Function::Odd,
-            Function::Ceiling,
-            Function::CeilingMath,
-            Function::CeilingPrecise,
-            Function::Floor,
-            Function::FloorMath,
-            Function::FloorPrecise,
-            Function::IsoCeiling,
-            Function::Mod,
-            Function::Quotient,
-            Function::Mround,
-            Function::Trunc,
-            Function::Gcd,
-            Function::Lcm,
-            Function::Base,
-            Function::Decimal,
             Function::Max,
             Function::Min,
             Function::Product,
             Function::Rand,
             Function::Randbetween,
-            Function::Radians,
-            Function::Degrees,
             Function::Round,
             Function::Rounddown,
             Function::Roundup,
@@ -469,26 +362,9 @@ impl Function {
             Function::Month,
             Function::Eomonth,
             Function::Date,
-            Function::Datedif,
-            Function::Datevalue,
             Function::Edate,
-            Function::Networkdays,
-            Function::NetworkdaysIntl,
-            Function::Time,
-            Function::Timevalue,
-            Function::Hour,
-            Function::Minute,
-            Function::Second,
             Function::Today,
             Function::Now,
-            Function::Days,
-            Function::Days360,
-            Function::Weekday,
-            Function::Weeknum,
-            Function::Workday,
-            Function::WorkdayIntl,
-            Function::Yearfrac,
-            Function::Isoweeknum,
             Function::Pmt,
             Function::Pv,
             Function::Rate,
@@ -577,27 +453,6 @@ impl Function {
             Function::Delta,
             Function::Gestep,
             Function::Subtotal,
-            Function::Roman,
-            Function::Arabic,
-            Function::Combin,
-            Function::Combina,
-            Function::Sumsq,
-            Function::N,
-            Function::Cell,
-            Function::Info,
-            Function::Sheets,
-            Function::Daverage,
-            Function::Dcount,
-            Function::Dget,
-            Function::Dmax,
-            Function::Dmin,
-            Function::Dsum,
-            Function::Dcounta,
-            Function::Dproduct,
-            Function::Dstdev,
-            Function::Dvar,
-            Function::Dvarp,
-            Function::Dstdevp,
         ]
         .into_iter()
     }
@@ -639,27 +494,6 @@ impl Function {
             Function::Isformula => "_xlfn.ISFORMULA".to_string(),
             Function::Sheet => "_xlfn.SHEET".to_string(),
             Function::Formulatext => "_xlfn.FORMULATEXT".to_string(),
-            Function::Isoweeknum => "_xlfn.ISOWEEKNUM".to_string(),
-            Function::Ceiling => "_xlfn.CEILING".to_string(),
-            Function::CeilingMath => "_xlfn.CEILING.MATH".to_string(),
-            Function::CeilingPrecise => "_xlfn.CEILING.PRECISE".to_string(),
-            Function::FloorMath => "_xlfn.FLOOR.MATH".to_string(),
-            Function::FloorPrecise => "_xlfn.FLOOR.PRECISE".to_string(),
-            Function::IsoCeiling => "_xlfn.ISO.CEILING".to_string(),
-            Function::Base => "_xlfn.BASE".to_string(),
-            Function::Decimal => "_xlfn.DECIMAL".to_string(),
-            Function::Arabic => "_xlfn.ARABIC".to_string(),
-            Function::Combina => "_xlfn.COMBINA".to_string(),
-            Function::Sheets => "_xlfn.SHEETS".to_string(),
-            Function::Acoth => "_xlfn.ACOTH".to_string(),
-            Function::Cot => "_xlfn.COT".to_string(),
-            Function::Coth => "_xlfn.COTH".to_string(),
-            Function::Csc => "_xlfn.CSC".to_string(),
-            Function::Csch => "_xlfn.CSCH".to_string(),
-            Function::Sec => "_xlfn.SEC".to_string(),
-            Function::Sech => "_xlfn.SECH".to_string(),
-            Function::Acot => "_xlfn.ACOT".to_string(),
-
             _ => self.to_string(),
         }
     }
@@ -682,61 +516,34 @@ impl Function {
             "SWITCH" | "_XLFN.SWITCH" => Some(Function::Switch),
             "TRUE" => Some(Function::True),
             "XOR" | "_XLFN.XOR" => Some(Function::Xor),
+
             "SIN" => Some(Function::Sin),
             "COS" => Some(Function::Cos),
             "TAN" => Some(Function::Tan),
+
             "ASIN" => Some(Function::Asin),
             "ACOS" => Some(Function::Acos),
             "ATAN" => Some(Function::Atan),
+
             "SINH" => Some(Function::Sinh),
             "COSH" => Some(Function::Cosh),
             "TANH" => Some(Function::Tanh),
+
             "ASINH" => Some(Function::Asinh),
             "ACOSH" => Some(Function::Acosh),
             "ATANH" => Some(Function::Atanh),
-            "ACOT" | "_XLFN.ACOT" => Some(Function::Acot),
+
-            "COTH" | "_XLFN.COTH" => Some(Function::Coth),
-            "COT" | "_XLFN.COT" => Some(Function::Cot),
-            "CSC" | "_XLFN.CSC" => Some(Function::Csc),
-            "CSCH" | "_XLFN.CSCH" => Some(Function::Csch),
-            "SEC" | "_XLFN.SEC" => Some(Function::Sec),
-            "SECH" | "_XLFN.SECH" => Some(Function::Sech),
-            "ACOTH" | "_XLFN.ACOTH" => Some(Function::Acoth),
-            "FACT" => Some(Function::Fact),
-            "FACTDOUBLE" => Some(Function::Factdouble),
-            "EXP" => Some(Function::Exp),
-            "SIGN" => Some(Function::Sign),
-            "RADIANS" => Some(Function::Radians),
-            "DEGREES" => Some(Function::Degrees),
-            "INT" => Some(Function::Int),
-            "EVEN" => Some(Function::Even),
-            "ODD" => Some(Function::Odd),
-            "CEILING" | "_XLFN.CEILING" => Some(Function::Ceiling),
-            "CEILING.MATH" | "_XLFN.CEILING.MATH" => Some(Function::CeilingMath),
-            "CEILING.PRECISE" | "_XLFN.CEILING.PRECISE" => Some(Function::CeilingPrecise),
-            "FLOOR" => Some(Function::Floor),
-            "FLOOR.MATH" | "_XLFN.FLOOR.MATH" => Some(Function::FloorMath),
-            "FLOOR.PRECISE" | "_XLFN.FLOOR.PRECISE" => Some(Function::FloorPrecise),
-            "ISO.CEILING" | "_XLFN.ISO.CEILING" => Some(Function::IsoCeiling),
-            "MOD" => Some(Function::Mod),
-            "QUOTIENT" => Some(Function::Quotient),
-            "MROUND" => Some(Function::Mround),
-            "TRUNC" => Some(Function::Trunc),
-            "GCD" => Some(Function::Gcd),
-            "LCM" => Some(Function::Lcm),
-            "BASE" | "_XLFN.BASE" => Some(Function::Base),
-            "DECIMAL" | "_XLFN.DECIMAL" => Some(Function::Decimal),
-            "ROMAN" => Some(Function::Roman),
-            "ARABIC" | "_XLFN.ARABIC" => Some(Function::Arabic),
             "PI" => Some(Function::Pi),
             "ABS" => Some(Function::Abs),
             "SQRT" => Some(Function::Sqrt),
             "SQRTPI" => Some(Function::Sqrtpi),
             "POWER" => Some(Function::Power),
             "ATAN2" => Some(Function::Atan2),
+
             "LN" => Some(Function::Ln),
             "LOG" => Some(Function::Log),
             "LOG10" => Some(Function::Log10),
+
             "MAX" => Some(Function::Max),
             "MIN" => Some(Function::Min),
             "PRODUCT" => Some(Function::Product),
@@ -748,9 +555,6 @@ impl Function {
             "SUM" => Some(Function::Sum),
             "SUMIF" => Some(Function::Sumif),
             "SUMIFS" => Some(Function::Sumifs),
-            "COMBIN" => Some(Function::Combin),
-            "COMBINA" | "_XLFN.COMBINA" => Some(Function::Combina),
-            "SUMSQ" => Some(Function::Sumsq),
 
             // Lookup and Reference
             "CHOOSE" => Some(Function::Choose),
@@ -827,26 +631,9 @@ impl Function {
             "EOMONTH" => Some(Function::Eomonth),
             "MONTH" => Some(Function::Month),
             "DATE" => Some(Function::Date),
-            "DATEDIF" => Some(Function::Datedif),
-            "DATEVALUE" => Some(Function::Datevalue),
             "EDATE" => Some(Function::Edate),
-            "NETWORKDAYS" => Some(Function::Networkdays),
-            "NETWORKDAYS.INTL" => Some(Function::NetworkdaysIntl),
-            "TIME" => Some(Function::Time),
-            "TIMEVALUE" => Some(Function::Timevalue),
-            "HOUR" => Some(Function::Hour),
-            "MINUTE" => Some(Function::Minute),
-            "SECOND" => Some(Function::Second),
             "TODAY" => Some(Function::Today),
             "NOW" => Some(Function::Now),
-            "DAYS" | "_XLFN.DAYS" => Some(Function::Days),
-            "DAYS360" => Some(Function::Days360),
-            "WEEKDAY" => Some(Function::Weekday),
-            "WEEKNUM" => Some(Function::Weeknum),
-            "WORKDAY" => Some(Function::Workday),
-            "WORKDAY.INTL" => Some(Function::WorkdayIntl),
-            "YEARFRAC" => Some(Function::Yearfrac),
-            "ISOWEEKNUM" | "_XLFN.ISOWEEKNUM" => Some(Function::Isoweeknum),
             // Financial
             "PMT" => Some(Function::Pmt),
             "PV" => Some(Function::Pv),
@@ -938,25 +725,6 @@ impl Function {
             "GESTEP" => Some(Function::Gestep),
 
             "SUBTOTAL" => Some(Function::Subtotal),
-
-            "N" => Some(Function::N),
-            "CELL" => Some(Function::Cell),
-            "INFO" => Some(Function::Info),
-            "SHEETS" | "_XLFN.SHEETS" => Some(Function::Sheets),
-
-            "DAVERAGE" => Some(Function::Daverage),
-            "DCOUNT" => Some(Function::Dcount),
-            "DGET" => Some(Function::Dget),
-            "DMAX" => Some(Function::Dmax),
-            "DMIN" => Some(Function::Dmin),
-            "DSUM" => Some(Function::Dsum),
-            "DCOUNTA" => Some(Function::Dcounta),
-            "DPRODUCT" => Some(Function::Dproduct),
-            "DSTDEV" => Some(Function::Dstdev),
-            "DVAR" => Some(Function::Dvar),
-            "DVARP" => Some(Function::Dvarp),
-            "DSTDEVP" => Some(Function::Dstdevp),
-
             _ => None,
         }
     }
@@ -991,14 +759,6 @@ impl fmt::Display for Function {
             Function::Asinh => write!(f, "ASINH"),
             Function::Acosh => write!(f, "ACOSH"),
             Function::Atanh => write!(f, "ATANH"),
-            Function::Acot => write!(f, "ACOT"),
-            Function::Acoth => write!(f, "ACOTH"),
-            Function::Cot => write!(f, "COT"),
-            Function::Coth => write!(f, "COTH"),
-            Function::Csc => write!(f, "CSC"),
-            Function::Csch => write!(f, "CSCH"),
-            Function::Sec => write!(f, "SEC"),
-            Function::Sech => write!(f, "SECH"),
             Function::Abs => write!(f, "ABS"),
             Function::Pi => write!(f, "PI"),
             Function::Sqrt => write!(f, "SQRT"),
@@ -1063,6 +823,7 @@ impl fmt::Display for Function {
             Function::Isformula => write!(f, "ISFORMULA"),
             Function::Type => write!(f, "TYPE"),
             Function::Sheet => write!(f, "SHEET"),
+
             Function::Average => write!(f, "AVERAGE"),
             Function::Averagea => write!(f, "AVERAGEA"),
             Function::Averageif => write!(f, "AVERAGEIF"),
@@ -1080,26 +841,9 @@ impl fmt::Display for Function {
             Function::Month => write!(f, "MONTH"),
             Function::Eomonth => write!(f, "EOMONTH"),
             Function::Date => write!(f, "DATE"),
-            Function::Datedif => write!(f, "DATEDIF"),
-            Function::Datevalue => write!(f, "DATEVALUE"),
             Function::Edate => write!(f, "EDATE"),
-            Function::Networkdays => write!(f, "NETWORKDAYS"),
-            Function::NetworkdaysIntl => write!(f, "NETWORKDAYS.INTL"),
-            Function::Time => write!(f, "TIME"),
-            Function::Timevalue => write!(f, "TIMEVALUE"),
-            Function::Hour => write!(f, "HOUR"),
-            Function::Minute => write!(f, "MINUTE"),
-            Function::Second => write!(f, "SECOND"),
             Function::Today => write!(f, "TODAY"),
             Function::Now => write!(f, "NOW"),
-            Function::Days => write!(f, "DAYS"),
-            Function::Days360 => write!(f, "DAYS360"),
-            Function::Weekday => write!(f, "WEEKDAY"),
-            Function::Weeknum => write!(f, "WEEKNUM"),
-            Function::Workday => write!(f, "WORKDAY"),
-            Function::WorkdayIntl => write!(f, "WORKDAY.INTL"),
-            Function::Yearfrac => write!(f, "YEARFRAC"),
-            Function::Isoweeknum => write!(f, "ISOWEEKNUM"),
             Function::Pmt => write!(f, "PMT"),
             Function::Pv => write!(f, "PV"),
             Function::Rate => write!(f, "RATE"),
@@ -1187,53 +931,8 @@ impl fmt::Display for Function {
             Function::Convert => write!(f, "CONVERT"),
             Function::Delta => write!(f, "DELTA"),
             Function::Gestep => write!(f, "GESTEP"),
-            Function::Subtotal => write!(f, "SUBTOTAL"),
-            Function::Exp => write!(f, "EXP"),
-            Function::Fact => write!(f, "FACT"),
-            Function::Factdouble => write!(f, "FACTDOUBLE"),
-            Function::Sign => write!(f, "SIGN"),
-            Function::Radians => write!(f, "RADIANS"),
-            Function::Degrees => write!(f, "DEGREES"),
-            Function::Int => write!(f, "INT"),
-            Function::Even => write!(f, "EVEN"),
-            Function::Odd => write!(f, "ODD"),
-            Function::Ceiling => write!(f, "CEILING"),
-            Function::CeilingMath => write!(f, "CEILING.MATH"),
-            Function::CeilingPrecise => write!(f, "CEILING.PRECISE"),
-            Function::Floor => write!(f, "FLOOR"),
-            Function::FloorMath => write!(f, "FLOOR.MATH"),
-            Function::FloorPrecise => write!(f, "FLOOR.PRECISE"),
-            Function::IsoCeiling => write!(f, "ISO.CEILING"),
-            Function::Mod => write!(f, "MOD"),
-            Function::Quotient => write!(f, "QUOTIENT"),
-            Function::Mround => write!(f, "MROUND"),
-            Function::Trunc => write!(f, "TRUNC"),
-            Function::Gcd => write!(f, "GCD"),
-            Function::Lcm => write!(f, "LCM"),
-            Function::Base => write!(f, "BASE"),
-            Function::Decimal => write!(f, "DECIMAL"),
-            Function::Roman => write!(f, "ROMAN"),
-            Function::Arabic => write!(f, "ARABIC"),
-            Function::Combin => write!(f, "COMBIN"),
-            Function::Combina => write!(f, "COMBINA"),
-            Function::Sumsq => write!(f, "SUMSQ"),
 
-            Function::N => write!(f, "N"),
+            Function::Subtotal => write!(f, "SUBTOTAL"),
-            Function::Cell => write!(f, "CELL"),
-            Function::Info => write!(f, "INFO"),
-            Function::Sheets => write!(f, "SHEETS"),
-            Function::Daverage => write!(f, "DAVERAGE"),
-            Function::Dcount => write!(f, "DCOUNT"),
-            Function::Dget => write!(f, "DGET"),
-            Function::Dmax => write!(f, "DMAX"),
-            Function::Dmin => write!(f, "DMIN"),
-            Function::Dsum => write!(f, "DSUM"),
-            Function::Dcounta => write!(f, "DCOUNTA"),
-            Function::Dproduct => write!(f, "DPRODUCT"),
-            Function::Dstdev => write!(f, "DSTDEV"),
-            Function::Dvar => write!(f, "DVAR"),
-            Function::Dvarp => write!(f, "DVARP"),
-            Function::Dstdevp => write!(f, "DSTDEVP"),
         }
     }
 }
@@ -1262,6 +961,7 @@ impl Model {
         cell: CellReferenceIndex,
     ) -> CalcResult {
         match kind {
+            // Logical
             Function::And => self.fn_and(args, cell),
             Function::False => self.fn_false(args, cell),
             Function::If => self.fn_if(args, cell),
@@ -1273,27 +973,34 @@ impl Model {
             Function::Switch => self.fn_switch(args, cell),
             Function::True => self.fn_true(args, cell),
             Function::Xor => self.fn_xor(args, cell),
+            // Math and trigonometry
             Function::Log => self.fn_log(args, cell),
             Function::Log10 => self.fn_log10(args, cell),
             Function::Ln => self.fn_ln(args, cell),
             Function::Sin => self.fn_sin(args, cell),
             Function::Cos => self.fn_cos(args, cell),
             Function::Tan => self.fn_tan(args, cell),
+
             Function::Asin => self.fn_asin(args, cell),
             Function::Acos => self.fn_acos(args, cell),
             Function::Atan => self.fn_atan(args, cell),
+
             Function::Sinh => self.fn_sinh(args, cell),
             Function::Cosh => self.fn_cosh(args, cell),
             Function::Tanh => self.fn_tanh(args, cell),
+
             Function::Asinh => self.fn_asinh(args, cell),
             Function::Acosh => self.fn_acosh(args, cell),
             Function::Atanh => self.fn_atanh(args, cell),
+
             Function::Pi => self.fn_pi(args, cell),
             Function::Abs => self.fn_abs(args, cell),
+
             Function::Sqrt => self.fn_sqrt(args, cell),
             Function::Sqrtpi => self.fn_sqrtpi(args, cell),
             Function::Atan2 => self.fn_atan2(args, cell),
             Function::Power => self.fn_power(args, cell),
+
             Function::Max => self.fn_max(args, cell),
             Function::Min => self.fn_min(args, cell),
             Function::Product => self.fn_product(args, cell),
@@ -1305,6 +1012,8 @@ impl Model {
             Function::Sum => self.fn_sum(args, cell),
             Function::Sumif => self.fn_sumif(args, cell),
             Function::Sumifs => self.fn_sumifs(args, cell),
+
+            // Lookup and Reference
             Function::Choose => self.fn_choose(args, cell),
             Function::Column => self.fn_column(args, cell),
             Function::Columns => self.fn_columns(args, cell),
@@ -1318,6 +1027,7 @@ impl Model {
             Function::Rows => self.fn_rows(args, cell),
             Function::Vlookup => self.fn_vlookup(args, cell),
             Function::Xlookup => self.fn_xlookup(args, cell),
+            // Text
             Function::Concatenate => self.fn_concatenate(args, cell),
             Function::Exact => self.fn_exact(args, cell),
             Function::Value => self.fn_value(args, cell),
@@ -1335,6 +1045,7 @@ impl Model {
             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),
             Function::Isnontext => self.fn_isnontext(args, cell),
             Function::Istext => self.fn_istext(args, cell),
@@ -1352,6 +1063,7 @@ impl Model {
             Function::Isformula => self.fn_isformula(args, cell),
             Function::Type => self.fn_type(args, cell),
             Function::Sheet => self.fn_sheet(args, cell),
+            // Statistical
             Function::Average => self.fn_average(args, cell),
             Function::Averagea => self.fn_averagea(args, cell),
             Function::Averageif => self.fn_averageif(args, cell),
@@ -1364,31 +1076,16 @@ impl Model {
             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),
             Function::Eomonth => self.fn_eomonth(args, cell),
             Function::Month => self.fn_month(args, cell),
             Function::Date => self.fn_date(args, cell),
-            Function::Datedif => self.fn_datedif(args, cell),
-            Function::Datevalue => self.fn_datevalue(args, cell),
             Function::Edate => self.fn_edate(args, cell),
-            Function::Networkdays => self.fn_networkdays(args, cell),
-            Function::NetworkdaysIntl => self.fn_networkdays_intl(args, cell),
-            Function::Time => self.fn_time(args, cell),
-            Function::Timevalue => self.fn_timevalue(args, cell),
-            Function::Hour => self.fn_hour(args, cell),
-            Function::Minute => self.fn_minute(args, cell),
-            Function::Second => self.fn_second(args, cell),
             Function::Today => self.fn_today(args, cell),
             Function::Now => self.fn_now(args, cell),
-            Function::Days => self.fn_days(args, cell),
+            // Financial
-            Function::Days360 => self.fn_days360(args, cell),
-            Function::Weekday => self.fn_weekday(args, cell),
-            Function::Weeknum => self.fn_weeknum(args, cell),
-            Function::Workday => self.fn_workday(args, cell),
-            Function::WorkdayIntl => self.fn_workday_intl(args, cell),
-            Function::Yearfrac => self.fn_yearfrac(args, cell),
-            Function::Isoweeknum => self.fn_isoweeknum(args, cell),
             Function::Pmt => self.fn_pmt(args, cell),
             Function::Pv => self.fn_pv(args, cell),
             Function::Rate => self.fn_rate(args, cell),
@@ -1422,6 +1119,7 @@ impl Model {
             Function::Db => self.fn_db(args, cell),
             Function::Cumprinc => self.fn_cumprinc(args, cell),
             Function::Cumipmt => self.fn_cumipmt(args, cell),
+            // Engineering
             Function::Besseli => self.fn_besseli(args, cell),
             Function::Besselj => self.fn_besselj(args, cell),
             Function::Besselk => self.fn_besselk(args, cell),
@@ -1476,60 +1174,8 @@ impl Model {
             Function::Convert => self.fn_convert(args, cell),
             Function::Delta => self.fn_delta(args, cell),
             Function::Gestep => self.fn_gestep(args, cell),
+
             Function::Subtotal => self.fn_subtotal(args, cell),
-            Function::Acot => self.fn_acot(args, cell),
-            Function::Acoth => self.fn_acoth(args, cell),
-            Function::Cot => self.fn_cot(args, cell),
-            Function::Coth => self.fn_coth(args, cell),
-            Function::Csc => self.fn_csc(args, cell),
-            Function::Csch => self.fn_csch(args, cell),
-            Function::Sec => self.fn_sec(args, cell),
-            Function::Sech => self.fn_sech(args, cell),
-            Function::Exp => self.fn_exp(args, cell),
-            Function::Fact => self.fn_fact(args, cell),
-            Function::Factdouble => self.fn_factdouble(args, cell),
-            Function::Sign => self.fn_sign(args, cell),
-            Function::Radians => self.fn_radians(args, cell),
-            Function::Degrees => self.fn_degrees(args, cell),
-            Function::Int => self.fn_int(args, cell),
-            Function::Even => self.fn_even(args, cell),
-            Function::Odd => self.fn_odd(args, cell),
-            Function::Ceiling => self.fn_ceiling(args, cell),
-            Function::CeilingMath => self.fn_ceiling_math(args, cell),
-            Function::CeilingPrecise => self.fn_ceiling_precise(args, cell),
-            Function::Floor => self.fn_floor(args, cell),
-            Function::FloorMath => self.fn_floor_math(args, cell),
-            Function::FloorPrecise => self.fn_floor_precise(args, cell),
-            Function::IsoCeiling => self.fn_iso_ceiling(args, cell),
-            Function::Mod => self.fn_mod(args, cell),
-            Function::Quotient => self.fn_quotient(args, cell),
-            Function::Mround => self.fn_mround(args, cell),
-            Function::Trunc => self.fn_trunc(args, cell),
-            Function::Gcd => self.fn_gcd(args, cell),
-            Function::Lcm => self.fn_lcm(args, cell),
-            Function::Base => self.fn_base(args, cell),
-            Function::Decimal => self.fn_decimal(args, cell),
-            Function::Roman => self.fn_roman(args, cell),
-            Function::Arabic => self.fn_arabic(args, cell),
-            Function::Combin => self.fn_combin(args, cell),
-            Function::Combina => self.fn_combina(args, cell),
-            Function::Sumsq => self.fn_sumsq(args, cell),
-            Function::N => self.fn_n(args, cell),
-            Function::Cell => self.fn_cell(args, cell),
-            Function::Info => self.fn_info(args, cell),
-            Function::Sheets => self.fn_sheets(args, cell),
-            Function::Daverage => self.fn_daverage(args, cell),
-            Function::Dcount => self.fn_dcount(args, cell),
-            Function::Dget => self.fn_dget(args, cell),
-            Function::Dmax => self.fn_dmax(args, cell),
-            Function::Dmin => self.fn_dmin(args, cell),
-            Function::Dsum => self.fn_dsum(args, cell),
-            Function::Dcounta => self.fn_dcounta(args, cell),
-            Function::Dproduct => self.fn_dproduct(args, cell),
-            Function::Dstdev => self.fn_dstdev(args, cell),
-            Function::Dvar => self.fn_dvar(args, cell),
-            Function::Dvarp => self.fn_dvarp(args, cell),
-            Function::Dstdevp => self.fn_dstdevp(args, cell),
         }
     }
 }

base/src/functions/util.rs

@@ -1,10 +1,7 @@
 #[cfg(feature = "use_regex_lite")]
 use regex_lite as regex;
 
-use crate::{
+use crate::{calc_result::CalcResult, expressions::token::is_english_error_string};
-    calc_result::CalcResult, expressions::token::is_english_error_string,
-    number_format::to_excel_precision,
-};
 
 /// This test for exact match (modulo case).
 ///   * strings are not cast into bools or numbers
@@ -37,8 +34,6 @@ pub(crate) fn values_are_equal(left: &CalcResult, right: &CalcResult) -> bool {
 pub(crate) fn compare_values(left: &CalcResult, right: &CalcResult) -> i32 {
     match (left, right) {
         (CalcResult::Number(value1), CalcResult::Number(value2)) => {
-            let value1 = to_excel_precision(*value1, 15);
-            let value2 = to_excel_precision(*value2, 15);
             if (value2 - value1).abs() < f64::EPSILON {
                 return 0;
             }

base/src/model.rs

@@ -2068,7 +2068,21 @@ impl Model {
         scope: Option<u32>,
         formula: &str,
     ) -> Result<(), String> {
-        let sheet_id = self.is_valid_defined_name(name, scope, formula)?;
+        if !is_valid_identifier(name) {
+            return Err("Invalid defined name".to_string());
+        };
+        let name_upper = name.to_uppercase();
+        let defined_names = &self.workbook.defined_names;
+        let sheet_id = match scope {
+            Some(index) => Some(self.workbook.worksheet(index)?.sheet_id),
+            None => None,
+        };
+        // if the defined name already exist return error
+        for df in defined_names {
+            if df.name.to_uppercase() == name_upper && df.sheet_id == sheet_id {
+                return Err("Defined name already exists".to_string());
+            }
+        }
         self.workbook.defined_names.push(DefinedName {
             name: name.to_string(),
             formula: formula.to_string(),
@@ -2079,48 +2093,6 @@ impl Model {
         Ok(())
     }
 
-    /// Validates if a defined name can be created
-    pub fn is_valid_defined_name(
-        &self,
-        name: &str,
-        scope: Option<u32>,
-        formula: &str,
-    ) -> Result<Option<u32>, String> {
-        if !is_valid_identifier(name) {
-            return Err("Name: Invalid defined name".to_string());
-        }
-        let name_upper = name.to_uppercase();
-        let defined_names = &self.workbook.defined_names;
-        let sheet_id = match scope {
-            Some(index) => match self.workbook.worksheet(index) {
-                Ok(ws) => Some(ws.sheet_id),
-                Err(_) => return Err("Scope: Invalid sheet index".to_string()),
-            },
-            None => None,
-        };
-        // if the defined name already exist return error
-        for df in defined_names {
-            if df.name.to_uppercase() == name_upper && df.sheet_id == sheet_id {
-                return Err("Name: Defined name already exists".to_string());
-            }
-        }
-
-        // Make sure the formula is valid
-        match common::ParsedReference::parse_reference_formula(
-            None,
-            formula,
-            &self.locale,
-            |name| self.get_sheet_index_by_name(name),
-        ) {
-            Ok(_) => {}
-            Err(_) => {
-                return Err("Formula: Invalid defined name formula".to_string());
-            }
-        };
-
-        Ok(sheet_id)
-    }
-
     /// Delete defined name of name and scope
     pub fn delete_defined_name(&mut self, name: &str, scope: Option<u32>) -> Result<(), String> {
         let name_upper = name.to_uppercase();
@@ -2154,7 +2126,7 @@ impl Model {
         new_formula: &str,
     ) -> Result<(), String> {
         if !is_valid_identifier(new_name) {
-            return Err("Name: Invalid defined name".to_string());
+            return Err("Invalid defined name".to_string());
         };
         let name_upper = name.to_uppercase();
         let new_name_upper = new_name.to_uppercase();
@@ -2162,28 +2134,18 @@ impl Model {
         if name_upper != new_name_upper || scope != new_scope {
             for key in self.parsed_defined_names.keys() {
                 if key.1.to_uppercase() == new_name_upper && key.0 == new_scope {
-                    return Err("Name: Defined name already exists".to_string());
+                    return Err("Defined name already exists".to_string());
                 }
             }
         }
         let defined_names = &self.workbook.defined_names;
         let sheet_id = match scope {
-            Some(index) => Some(
+            Some(index) => Some(self.workbook.worksheet(index)?.sheet_id),
-                self.workbook
-                    .worksheet(index)
-                    .map_err(|_| "Scope: Invalid sheet index")?
-                    .sheet_id,
-            ),
             None => None,
         };
 
         let new_sheet_id = match new_scope {
-            Some(index) => Some(
+            Some(index) => Some(self.workbook.worksheet(index)?.sheet_id),
-                self.workbook
-                    .worksheet(index)
-                    .map_err(|_| "Scope: Invalid sheet index")?
-                    .sheet_id,
-            ),
             None => None,
         };
 

base/src/number_format.rs

@@ -112,36 +112,29 @@ pub fn to_precision(value: f64, precision: usize) -> f64 {
 /// ```
 /// This intends to be equivalent to the js: `${parseFloat(value.toPrecision(precision)})`
 /// See ([ecma](https://tc39.es/ecma262/#sec-number.prototype.toprecision)).
+/// FIXME: There has to be a better algorithm :/
 pub fn to_excel_precision_str(value: f64) -> String {
     to_precision_str(value, 15)
 }
-
-pub fn to_excel_precision(value: f64, precision: usize) -> f64 {
-    if !value.is_finite() {
-        return value;
-    }
-
-    let s = format!("{:.*e}", precision.saturating_sub(1), value);
-    s.parse::<f64>().unwrap_or(value)
-}
-
 pub fn to_precision_str(value: f64, precision: usize) -> String {
-    if !value.is_finite() {
+    if value.is_infinite() {
-        if value.is_infinite() {
+        return "inf".to_string();
-            return "inf".to_string();
-        } else {
-            return "NaN".to_string();
-        }
     }
-
+    if value.is_nan() {
-    let s = format!("{:.*e}", precision.saturating_sub(1), value);
+        return "NaN".to_string();
-    let parsed = s.parse::<f64>().unwrap_or(value);
+    }
-
+    let exponent = value.abs().log10().floor();
+    let base = value / 10.0_f64.powf(exponent);
+    let base = format!("{0:.1$}", base, precision - 1);
+    let value = format!("{base}e{exponent}").parse::<f64>().unwrap_or({
+        // TODO: do this in a way that does not require a possible error
+        0.0
+    });
     // I would love to use the std library. There is not a speed concern here
     // problem is it doesn't do the right thing
     // Also ryu is my favorite _modern_ algorithm
     let mut buffer = ryu::Buffer::new();
-    let text = buffer.format(parsed);
+    let text = buffer.format(value);
     // The above algorithm converts 2 to 2.0 regrettably
     if let Some(stripped) = text.strip_suffix(".0") {
         return stripped.to_string();

base/src/test/engineering/test_complex.rs

@@ -133,7 +133,6 @@ fn fn_imcot() {
     );
 }
 
-#[cfg_attr(target_os = "windows", ignore)]
 #[test]
 fn fn_imtan() {
     let mut model = new_empty_model();

base/src/test/mod.rs

@@ -7,9 +7,6 @@ mod test_column_width;
 mod test_criteria;
 mod test_currency;
 mod test_date_and_time;
-mod test_datedif_leap_month_end;
-mod test_days360_month_end;
-mod test_degrees_radians;
 mod test_error_propagation;
 mod test_fn_average;
 mod test_fn_averageifs;
@@ -30,7 +27,6 @@ mod test_fn_sum;
 mod test_fn_sumifs;
 mod test_fn_textbefore;
 mod test_fn_textjoin;
-mod test_fn_time;
 mod test_fn_unicode;
 mod test_frozen_rows_columns;
 mod test_general;
@@ -47,11 +43,8 @@ mod test_sheets;
 mod test_styles;
 mod test_trigonometric;
 mod test_true_false;
-mod test_weekday_return_types;
-mod test_weeknum_return_types;
 mod test_workbook;
 mod test_worksheet;
-mod test_yearfrac_basis;
 pub(crate) mod util;
 
 mod engineering;
@@ -69,16 +62,11 @@ mod test_geomean;
 mod test_get_cell_content;
 mod test_implicit_intersection;
 mod test_issue_155;
-mod test_issue_483;
 mod test_ln;
 mod test_log;
 mod test_log10;
-mod test_mod_quotient;
-mod test_networkdays;
-mod test_now;
 mod test_percentage;
 mod test_set_functions_error_handling;
-mod test_sheet_names;
 mod test_today;
 mod test_types;
 mod user_model;

base/src/test/test_arabic_roman

@@ -1,27 +0,0 @@
-#![allow(clippy::unwrap_used)]
-
-use crate::test::util::new_empty_model;
-
-#[test]
-fn arguments() {
-    let mut model = new_empty_model();
-    model._set("A1", "=ARABIC()");
-    model._set("A2", "=ARABIC(V)");
-    model._set("A3", "=ARABIC(V, 2)");
-
-    model._set("A4", "=ROMAN()");
-    model._set("A5", "=ROMAN(5)");
-    model._set("A6", "=ROMAN(5, 0)");
-    model._set("A7", "=ROMAN(5, 0, 2)");
-
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), *"#ERROR!");
-    assert_eq!(model._get_text("A2"), *"5");
-    assert_eq!(model._get_text("A3"), *"#ERROR!");
-
-    assert_eq!(model._get_text("A4"), *"#ERROR!");
-    assert_eq!(model._get_text("A5"), *"V");
-    assert_eq!(model._get_text("A6"), *"V");
-    assert_eq!(model._get_text("A7"), *"#ERROR!");
-}

base/src/test/test_combin_combina

@@ -1,27 +0,0 @@
-#![allow(clippy::unwrap_used)]
-
-use crate::test::util::new_empty_model;
-
-#[test]
-fn arguments() {
-    let mut model = new_empty_model();
-    model._set("A1", "=COMBIN(5,2)");
-    model._set("A2", "=COMBINA(5,2)");
-    model._set("A3", "=COMBIN()");
-    model._set("A4", "=COMBINA()");
-    model._set("A5", "=COMBIN(2)");
-    model._set("A6", "=COMBINA(2)");
-    model._set("A5", "=COMBIN(1, 2, 3)");
-    model._set("A6", "=COMBINA(1, 2, 3)");
-
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), *"10");
-    assert_eq!(model._get_text("A2"), *"15");
-    assert_eq!(model._get_text("A3"), *"#ERROR!");
-    assert_eq!(model._get_text("A4"), *"#ERROR!");
-    assert_eq!(model._get_text("A5"), *"#ERROR!");
-    assert_eq!(model._get_text("A6"), *"#ERROR!");
-    assert_eq!(model._get_text("A7"), *"#ERROR!");
-    assert_eq!(model._get_text("A8"), *"#ERROR!");
-}

base/src/test/test_date_and_time.rs

@@ -6,11 +6,6 @@
 /// We can also enter examples that illustrate/document a part of the function
 use crate::{cell::CellValue, test::util::new_empty_model};
 
-// Excel uses a serial date system where Jan 1, 1900 = 1 (though it treats 1900 as a leap year)
-// Most test dates are documented inline, but we define boundary values here:
-const EXCEL_MAX_DATE: f64 = 2958465.0; // Dec 31, 9999 - used in boundary tests
-const EXCEL_INVALID_DATE: f64 = 2958466.0; // One day past max - used in error tests
-
 #[test]
 fn test_fn_date_arguments() {
     let mut model = new_empty_model();
@@ -221,380 +216,3 @@ fn test_date_early_dates() {
         Ok(CellValue::Number(61.0))
     );
 }
-#[test]
-fn test_days_function() {
-    let mut model = new_empty_model();
-
-    // Basic functionality
-    model._set("A1", "=DAYS(44570,44561)");
-    model._set("A2", "=DAYS(44561,44570)"); // Reversed order
-    model._set("A3", "=DAYS(44561,44561)");
-
-    // Edge cases
-    model._set("A4", "=DAYS(1,2)"); // Early dates
-    model._set(
-        "A5",
-        &format!("=DAYS({},{})", EXCEL_MAX_DATE, EXCEL_MAX_DATE - 1.0),
-    ); // Near max date
-
-    // Error cases - wrong argument count
-    model._set("A6", "=DAYS()");
-    model._set("A7", "=DAYS(44561)");
-    model._set("A8", "=DAYS(44561,44570,1)");
-
-    // Error cases - invalid dates
-    model._set("A9", "=DAYS(-1,44561)");
-    model._set("A10", &format!("=DAYS(44561,{EXCEL_INVALID_DATE})"));
-
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), *"9");
-    assert_eq!(model._get_text("A2"), *"-9");
-    assert_eq!(model._get_text("A3"), *"0");
-    assert_eq!(model._get_text("A4"), *"-1"); // DAYS(1,2) = 1-2 = -1
-    assert_eq!(model._get_text("A5"), *"1");
-    assert_eq!(model._get_text("A6"), *"#ERROR!");
-    assert_eq!(model._get_text("A7"), *"#ERROR!");
-    assert_eq!(model._get_text("A8"), *"#ERROR!");
-    assert_eq!(model._get_text("A9"), *"#NUM!");
-    assert_eq!(model._get_text("A10"), *"#NUM!");
-}
-
-#[test]
-fn test_days360_function() {
-    let mut model = new_empty_model();
-
-    // Basic functionality with different basis values
-    model._set("A1", "=DAYS360(44196,44560)"); // Default basis (US 30/360)
-    model._set("A2", "=DAYS360(44196,44560,FALSE)"); // US 30/360 explicitly
-    model._set("A3", "=DAYS360(44196,44560,TRUE)"); // European 30/360
-
-    // Same date
-    model._set("A4", "=DAYS360(44561,44561)");
-    model._set("A5", "=DAYS360(44561,44561,TRUE)");
-
-    // Reverse order (negative result)
-    model._set("A6", "=DAYS360(44560,44196)");
-    model._set("A7", "=DAYS360(44560,44196,TRUE)");
-
-    // Edge cases
-    model._set("A8", "=DAYS360(1,2)");
-    model._set("A9", "=DAYS360(1,2,FALSE)");
-
-    // Error cases - wrong argument count
-    model._set("A10", "=DAYS360()");
-    model._set("A11", "=DAYS360(44561)");
-    model._set("A12", "=DAYS360(44561,44570,TRUE,1)");
-
-    // Error cases - invalid dates
-    model._set("A13", "=DAYS360(-1,44561)");
-    model._set("A14", &format!("=DAYS360(44561,{EXCEL_INVALID_DATE})"));
-
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), *"360");
-    assert_eq!(model._get_text("A2"), *"360");
-    assert_eq!(model._get_text("A3"), *"360");
-    assert_eq!(model._get_text("A4"), *"0");
-    assert_eq!(model._get_text("A5"), *"0");
-    assert_eq!(model._get_text("A6"), *"-360");
-    assert_eq!(model._get_text("A7"), *"-360");
-    assert_eq!(model._get_text("A8"), *"1");
-    assert_eq!(model._get_text("A9"), *"1");
-    assert_eq!(model._get_text("A10"), *"#ERROR!");
-    assert_eq!(model._get_text("A11"), *"#ERROR!");
-    assert_eq!(model._get_text("A12"), *"#ERROR!");
-    assert_eq!(model._get_text("A13"), *"#NUM!");
-    assert_eq!(model._get_text("A14"), *"#NUM!");
-}
-
-#[test]
-fn test_weekday_function() {
-    let mut model = new_empty_model();
-
-    // Test return_type parameter variations with one known date (Friday 44561)
-    model._set("A1", "=WEEKDAY(44561)"); // Default: Sun=1, Fri=6
-    model._set("A2", "=WEEKDAY(44561,2)"); // Mon=1, Fri=5
-    model._set("A3", "=WEEKDAY(44561,3)"); // Mon=0, Fri=4
-
-    // Test boundary days (Sun/Mon) to verify return_type logic
-    model._set("A4", "=WEEKDAY(44556,1)"); // Sunday: should be 1
-    model._set("A5", "=WEEKDAY(44556,2)"); // Sunday: should be 7
-    model._set("A6", "=WEEKDAY(44557,2)"); // Monday: should be 1
-
-    // Error cases
-    model._set("A7", "=WEEKDAY()"); // Wrong arg count
-    model._set("A8", "=WEEKDAY(44561,0)"); // Invalid return_type
-    model._set("A9", "=WEEKDAY(-1)"); // Invalid date
-
-    model.evaluate();
-
-    // Core functionality
-    assert_eq!(model._get_text("A1"), *"6"); // Friday default
-    assert_eq!(model._get_text("A2"), *"5"); // Friday Mon=1
-    assert_eq!(model._get_text("A3"), *"4"); // Friday Mon=0
-
-    // Boundary verification
-    assert_eq!(model._get_text("A4"), *"1"); // Sunday Sun=1
-    assert_eq!(model._get_text("A5"), *"7"); // Sunday Mon=1
-    assert_eq!(model._get_text("A6"), *"1"); // Monday Mon=1
-
-    // Error cases
-    assert_eq!(model._get_text("A7"), *"#ERROR!");
-    assert_eq!(model._get_text("A8"), *"#VALUE!");
-    assert_eq!(model._get_text("A9"), *"#NUM!");
-}
-
-#[test]
-fn test_weeknum_function() {
-    let mut model = new_empty_model();
-
-    // Test different return_type values (1=week starts Sunday, 2=week starts Monday)
-    model._set("A1", "=WEEKNUM(44561)"); // Default return_type=1
-    model._set("A2", "=WEEKNUM(44561,1)"); // Sunday start
-    model._set("A3", "=WEEKNUM(44561,2)"); // Monday start
-
-    // Test year boundaries
-    model._set("A4", "=WEEKNUM(43831,1)"); // Jan 1, 2020 (Wednesday)
-    model._set("A5", "=WEEKNUM(43831,2)"); // Jan 1, 2020 (Wednesday)
-    model._set("A6", "=WEEKNUM(44196,1)"); // Dec 31, 2020 (Thursday)
-    model._set("A7", "=WEEKNUM(44196,2)"); // Dec 31, 2020 (Thursday)
-
-    // Test first and last weeks of year
-    model._set("A8", "=WEEKNUM(44197,1)"); // Jan 1, 2021 (Friday)
-    model._set("A9", "=WEEKNUM(44197,2)"); // Jan 1, 2021 (Friday)
-    model._set("A10", "=WEEKNUM(44561,1)"); // Dec 31, 2021 (Friday)
-    model._set("A11", "=WEEKNUM(44561,2)"); // Dec 31, 2021 (Friday)
-
-    // Error cases - wrong argument count
-    model._set("A12", "=WEEKNUM()");
-    model._set("A13", "=WEEKNUM(44561,1,1)");
-
-    // Error cases - invalid return_type
-    model._set("A14", "=WEEKNUM(44561,0)");
-    model._set("A15", "=WEEKNUM(44561,3)");
-    model._set("A16", "=WEEKNUM(44561,-1)");
-
-    // Error cases - invalid dates
-    model._set("A17", "=WEEKNUM(-1)");
-    model._set("A18", &format!("=WEEKNUM({EXCEL_INVALID_DATE})"));
-
-    model.evaluate();
-
-    // Basic functionality
-    assert_eq!(model._get_text("A1"), *"53"); // Week 53
-    assert_eq!(model._get_text("A2"), *"53"); // Week 53 (Sunday start)
-    assert_eq!(model._get_text("A3"), *"53"); // Week 53 (Monday start)
-
-    // Year boundary tests
-    assert_eq!(model._get_text("A4"), *"1"); // Jan 1, 2020 (Sunday start)
-    assert_eq!(model._get_text("A5"), *"1"); // Jan 1, 2020 (Monday start)
-    assert_eq!(model._get_text("A6"), *"53"); // Dec 31, 2020 (Sunday start)
-    assert_eq!(model._get_text("A7"), *"53"); // Dec 31, 2020 (Monday start)
-
-    // 2021 tests
-    assert_eq!(model._get_text("A8"), *"1"); // Jan 1, 2021 (Sunday start)
-    assert_eq!(model._get_text("A9"), *"1"); // Jan 1, 2021 (Monday start)
-    assert_eq!(model._get_text("A10"), *"53"); // Dec 31, 2021 (Sunday start)
-    assert_eq!(model._get_text("A11"), *"53"); // Dec 31, 2021 (Monday start)
-
-    // Error cases
-    assert_eq!(model._get_text("A12"), *"#ERROR!");
-    assert_eq!(model._get_text("A13"), *"#ERROR!");
-    assert_eq!(model._get_text("A14"), *"#VALUE!");
-    assert_eq!(model._get_text("A15"), *"#VALUE!");
-    assert_eq!(model._get_text("A16"), *"#VALUE!");
-    assert_eq!(model._get_text("A17"), *"#NUM!");
-    assert_eq!(model._get_text("A18"), *"#NUM!");
-}
-
-#[test]
-fn test_workday_function() {
-    let mut model = new_empty_model();
-
-    // Basic functionality
-    model._set("A1", "=WORKDAY(44560,1)");
-    model._set("A2", "=WORKDAY(44561,-1)");
-    model._set("A3", "=WORKDAY(44561,0)");
-    model._set("A4", "=WORKDAY(44560,5)");
-
-    // Test with holidays
-    model._set("B1", "44561");
-    model._set("A5", "=WORKDAY(44560,1,B1)"); // Should skip the holiday
-    model._set("B2", "44562");
-    model._set("B3", "44563");
-    model._set("A6", "=WORKDAY(44560,3,B1:B3)"); // Multiple holidays
-
-    // Test starting on weekend
-    model._set("A7", "=WORKDAY(44562,1)"); // Saturday start
-    model._set("A8", "=WORKDAY(44563,1)"); // Sunday start
-
-    // Test negative workdays
-    model._set("A9", "=WORKDAY(44565,-3)"); // Go backwards 3 days
-    model._set("A10", "=WORKDAY(44565,-5,B1:B3)"); // Backwards with holidays
-
-    // Edge cases
-    model._set("A11", "=WORKDAY(1,1)"); // Early date
-    model._set("A12", "=WORKDAY(100000,10)"); // Large numbers
-
-    // Error cases - wrong argument count
-    model._set("A13", "=WORKDAY()");
-    model._set("A14", "=WORKDAY(44560)");
-    model._set("A15", "=WORKDAY(44560,1,B1,B2)");
-
-    // Error cases - invalid dates
-    model._set("A16", "=WORKDAY(-1,1)");
-    model._set("A17", &format!("=WORKDAY({EXCEL_INVALID_DATE},1)"));
-
-    // Error cases - invalid holiday dates
-    model._set("B4", "-1");
-    model._set("A18", "=WORKDAY(44560,1,B4)");
-
-    model.evaluate();
-
-    // Basic functionality
-    assert_eq!(model._get_text("A1"), *"44561"); // 1 day forward
-    assert_eq!(model._get_text("A2"), *"44560"); // 1 day backward
-    assert_eq!(model._get_text("A3"), *"44561"); // 0 days
-    assert_eq!(model._get_text("A4"), *"44567"); // 5 days forward
-
-    // With holidays
-    assert_eq!(model._get_text("A5"), *"44564"); // Skip holiday, go to Monday
-    assert_eq!(model._get_text("A6"), *"44566"); // Skip multiple holidays
-
-    // Weekend starts
-    assert_eq!(model._get_text("A7"), *"44564"); // From Saturday
-    assert_eq!(model._get_text("A8"), *"44564"); // From Sunday
-
-    // Negative workdays
-    assert_eq!(model._get_text("A9"), *"44560"); // 3 days back
-    assert_eq!(model._get_text("A10"), *"44557"); // 5 days back with holidays
-
-    // Edge cases
-    assert_eq!(model._get_text("A11"), *"2"); // Early date
-    assert_eq!(model._get_text("A12"), *"100014"); // Large numbers
-
-    // Error cases
-    assert_eq!(model._get_text("A13"), *"#ERROR!");
-    assert_eq!(model._get_text("A14"), *"#ERROR!");
-    assert_eq!(model._get_text("A15"), *"#ERROR!");
-    assert_eq!(model._get_text("A16"), *"#NUM!");
-    assert_eq!(model._get_text("A17"), *"#NUM!");
-    assert_eq!(model._get_text("A18"), *"#NUM!"); // Invalid holiday
-}
-
-#[test]
-fn test_workday_intl_function() {
-    let mut model = new_empty_model();
-
-    // Test key weekend mask types
-    model._set("A1", "=WORKDAY.INTL(44560,1,1)"); // Numeric: standard (Sat-Sun)
-    model._set("A2", "=WORKDAY.INTL(44560,1,2)"); // Numeric: Sun-Mon
-    model._set("A3", "=WORKDAY.INTL(44560,1,\"0000001\")"); // String: Sunday only
-    model._set("A4", "=WORKDAY.INTL(44560,1,\"1100000\")"); // String: Mon-Tue
-
-    // Test with holidays
-    model._set("B1", "44561");
-    model._set("A5", "=WORKDAY.INTL(44560,2,1,B1)"); // Standard + holiday
-    model._set("A6", "=WORKDAY.INTL(44560,2,7,B1)"); // Fri-Sat + holiday
-
-    // Basic edge cases
-    model._set("A7", "=WORKDAY.INTL(44561,0,1)"); // Zero days
-    model._set("A8", "=WORKDAY.INTL(44565,-1,1)"); // Negative days
-
-    // Error cases
-    model._set("A9", "=WORKDAY.INTL()"); // Wrong arg count
-    model._set("A10", "=WORKDAY.INTL(44560,1,0)"); // Invalid weekend mask
-    model._set("A11", "=WORKDAY.INTL(44560,1,\"123\")"); // Invalid string mask
-    model._set("A12", "=WORKDAY.INTL(-1,1,1)"); // Invalid date
-
-    model.evaluate();
-
-    // Weekend mask functionality
-    assert_eq!(model._get_text("A1"), *"44561"); // Standard weekend
-    assert_eq!(model._get_text("A2"), *"44561"); // Sun-Mon weekend
-    assert_eq!(model._get_text("A3"), *"44561"); // Sunday only
-    assert_eq!(model._get_text("A4"), *"44561"); // Mon-Tue weekend
-
-    // With holidays
-    assert_eq!(model._get_text("A5"), *"44565"); // Skip holiday + standard weekend
-    assert_eq!(model._get_text("A6"), *"44564"); // Skip holiday + Fri-Sat weekend
-
-    // Edge cases
-    assert_eq!(model._get_text("A7"), *"44561"); // Zero days
-    assert_eq!(model._get_text("A8"), *"44564"); // Negative days
-
-    // Error cases
-    assert_eq!(model._get_text("A9"), *"#ERROR!");
-    assert_eq!(model._get_text("A10"), *"#NUM!");
-    assert_eq!(model._get_text("A11"), *"#VALUE!");
-    assert_eq!(model._get_text("A12"), *"#NUM!");
-}
-
-#[test]
-fn test_yearfrac_function() {
-    let mut model = new_empty_model();
-
-    // Test key basis values (not exhaustive - just verify parameter works)
-    model._set("A1", "=YEARFRAC(44561,44926)"); // Default (30/360)
-    model._set("A2", "=YEARFRAC(44561,44926,1)"); // Actual/actual
-    model._set("A3", "=YEARFRAC(44561,44926,4)"); // European 30/360
-
-    // Edge cases
-    model._set("A4", "=YEARFRAC(44561,44561,1)"); // Same date = 0
-    model._set("A6", "=YEARFRAC(44197,44562,1)"); // Exact year (2021)
-
-    // Error cases
-    model._set("A7", "=YEARFRAC()"); // Wrong arg count
-    model._set("A8", "=YEARFRAC(44561,44926,5)"); // Invalid basis
-    model._set("A9", "=YEARFRAC(-1,44926,1)"); // Invalid date
-
-    model.evaluate();
-
-    // Basic functionality (approximate values expected)
-    assert_eq!(model._get_text("A1"), *"1"); // About 1 year
-    assert_eq!(model._get_text("A2"), *"1"); // About 1 year
-    assert_eq!(model._get_text("A3"), *"1"); // About 1 year
-
-    // Edge cases
-    assert_eq!(model._get_text("A4"), *"0"); // Same date
-    assert_eq!(model._get_text("A6"), *"1"); // Exact year
-
-    // Error cases
-    assert_eq!(model._get_text("A7"), *"#ERROR!");
-    assert_eq!(model._get_text("A8"), *"#NUM!"); // Invalid basis should return #NUM!
-    assert_eq!(model._get_text("A9"), *"#NUM!");
-}
-
-#[test]
-fn test_isoweeknum_function() {
-    let mut model = new_empty_model();
-
-    // Basic functionality
-    model._set("A1", "=ISOWEEKNUM(44563)"); // Mid-week date
-    model._set("A2", "=ISOWEEKNUM(44561)"); // Year-end date
-
-    // Key ISO week boundaries (just critical cases)
-    model._set("A3", "=ISOWEEKNUM(44197)"); // Jan 1, 2021 (Fri) -> Week 53 of 2020
-    model._set("A4", "=ISOWEEKNUM(44200)"); // Jan 4, 2021 (Mon) -> Week 1 of 2021
-    model._set("A5", "=ISOWEEKNUM(44564)"); // Jan 3, 2022 (Mon) -> Week 1 of 2022
-
-    // Error cases
-    model._set("A6", "=ISOWEEKNUM()"); // Wrong arg count
-    model._set("A7", "=ISOWEEKNUM(-1)"); // Invalid date
-
-    model.evaluate();
-
-    // Basic functionality
-    assert_eq!(model._get_text("A1"), *"52");
-    assert_eq!(model._get_text("A2"), *"52");
-
-    // ISO week boundaries
-    assert_eq!(model._get_text("A3"), *"53"); // Week 53 of previous year
-    assert_eq!(model._get_text("A4"), *"1"); // Week 1 of current year
-    assert_eq!(model._get_text("A5"), *"1"); // Week 1 of next year
-
-    // Error cases
-    assert_eq!(model._get_text("A6"), *"#ERROR!");
-    assert_eq!(model._get_text("A7"), *"#NUM!");
-}

base/src/test/test_datedif_leap_month_end.rs

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

base/src/test/test_days360_month_end.rs

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

base/src/test/test_degrees_radians.rs

@@ -1,22 +0,0 @@
-#![allow(clippy::unwrap_used)]
-
-use crate::test::util::new_empty_model;
-
-#[test]
-fn fn_degrees_radians_arguments() {
-    let mut model = new_empty_model();
-    model._set("A1", "=DEGREES()");
-    model._set("A2", "=RADIANS()");
-    model._set("A3", "=RADIANS(180)");
-    model._set("A4", "=RADIANS(180, 2)");
-    model._set("A5", "=DEGREES(RADIANS(180))");
-    model._set("A6", "=DEGREES(1, 2)");
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), *"#ERROR!");
-    assert_eq!(model._get_text("A2"), *"#ERROR!");
-    assert_eq!(model._get_text("A3"), *"3.141592654");
-    assert_eq!(model._get_text("A4"), *"#ERROR!");
-    assert_eq!(model._get_text("A5"), *"180");
-    assert_eq!(model._get_text("A6"), *"#ERROR!");
-}

base/src/test/test_even_odd

@@ -1,23 +0,0 @@
-#![allow(clippy::unwrap_used)]
-
-use crate::test::util::new_empty_model;
-
-#[test]
-fn arguments() {
-    let mut model = new_empty_model();
-    model._set("A1", "=EVEN(2)");
-    model._set("A2", "=ODD(2)");
-    model._set("A3", "=EVEN()");
-    model._set("A4", "=ODD()");
-    model._set("A5", "=EVEN(1, 2)");
-    model._set("A6", "=ODD(1, 2)");
-
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), *"2");
-    assert_eq!(model._get_text("A2"), *"3");
-    assert_eq!(model._get_text("A3"), *"#ERROR!");
-    assert_eq!(model._get_text("A4"), *"#ERROR!");
-    assert_eq!(model._get_text("A5"), *"#ERROR!");
-    assert_eq!(model._get_text("A6"), *"#ERROR!");
-}

base/src/test/test_exp_sign.rs

@@ -1,26 +0,0 @@
-#![allow(clippy::unwrap_used)]
-
-use crate::test::util::new_empty_model;
-
-#[test]
-fn fn_arguments() {
-    let mut model = new_empty_model();
-    model._set("A1", "=EXP()");
-    model._set("A2", "=SIGN()");
-
-    model._set("A3", "=EXP(0)");
-    model._set("A4", "=SIGN(-10)");
-
-    model._set("A5", "=EXP(1, 2)");
-    model._set("A6", "=SIGN(1, 2)");
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), *"#ERROR!");
-    assert_eq!(model._get_text("A2"), *"#ERROR!");
-
-    assert_eq!(model._get_text("A3"), *"1");
-    assert_eq!(model._get_text("A4"), *"-1");
-
-    assert_eq!(model._get_text("A5"), *"#ERROR!");
-    assert_eq!(model._get_text("A6"), *"#ERROR!");
-}

base/src/test/test_fn_datevalue_datedif.rs

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

base/src/test/test_fn_datevalue_timevalue.rs

@@ -1,24 +0,0 @@
-#![allow(clippy::unwrap_used)]
-
-use crate::test::util::new_empty_model;
-
-#[test]
-fn datevalue_timevalue_arguments() {
-    let mut model = new_empty_model();
-    model._set("A1", "=DATEVALUE()");
-    model._set("A2", "=TIMEVALUE()");
-    model._set("A3", "=DATEVALUE("2000-01-01")")
-    model._set("A4", "=TIMEVALUE("12:00:00")")
-    model._set("A5", "=DATEVALUE(1,2)");
-    model._set("A6", "=TIMEVALUE(1,2)");
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), *"#ERROR!");
-    assert_eq!(model._get_text("A2"), *"#ERROR!");
-    assert_eq!(model._get_text("A3"), *"36526");
-    assert_eq!(model._get_text("A4"), *"0.5");
-    assert_eq!(model._get_text("A5"), *"#ERROR!");
-    assert_eq!(model._get_text("A6"), *"#ERROR!");
-}
-
-

base/src/test/test_fn_time.rs

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

base/src/test/test_issue_483.rs

@@ -1,13 +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", "123");
-    model._set("D2", "=-(A1^1.22)");
-    model.evaluate();
-
-    assert_eq!(model._get_formula("D2"), "=-(A1^1.22)".to_string());
-}

base/src/test/test_mod_quotient.rs

@@ -1,22 +0,0 @@
-#![allow(clippy::unwrap_used)]
-
-use crate::test::util::new_empty_model;
-
-#[test]
-fn arguments() {
-    let mut model = new_empty_model();
-    model._set("A1", "=MOD(5,2)");
-    model._set("A2", "=MOD()");
-    model._set("A3", "=MOD(5, 2, 1)");
-    model._set("A4", "=QUOTIENT(5, 2)");
-    model._set("A5", "=QUOTIENT()");
-    model._set("A6", "=QUOTIENT(5, 2, 1)");
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), *"1");
-    assert_eq!(model._get_text("A2"), *"#ERROR!");
-    assert_eq!(model._get_text("A3"), *"#ERROR!");
-    assert_eq!(model._get_text("A4"), *"2");
-    assert_eq!(model._get_text("A5"), *"#ERROR!");
-    assert_eq!(model._get_text("A6"), *"#ERROR!");
-}

base/src/test/test_mround_trunc_int

@@ -1,40 +0,0 @@
-#![allow(clippy::unwrap_used)]
-
-use crate::test::util::new_empty_model;
-
-#[test]
-fn arguments() {
-    let mut model = new_empty_model();
-    model._set("A1", "=MROUND()");
-    model._set("A2", "=MROUND(10)");
-    model._set("A3", "=MROUND(10, 3)");
-    model._set("A4", "=MROUND(10, 3, 1)");
-
-    model._set("A5", "=TRUNC()");
-    model._set("A6", "=TRUNC(10)");
-    model._set("A7", "=TRUNC(10.22, 1)");
-    model._set("A8", "=TRUNC(10, 3, 1)");
-
-    model._set("A9", "=INT()");
-    model._set("A10", "=INT(10.22)");
-    model._set("A11", "=INT(10.22, 1)");
-    model._set("A12", "=INT(10.22, 1, 2)");
-
-
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), *"#ERROR!");
-    assert_eq!(model._get_text("A2"), *"#ERROR!");
-    assert_eq!(model._get_text("A3"), *"9");
-    assert_eq!(model._get_text("A4"), *"#ERROR!");
-
-    assert_eq!(model._get_text("A5"), *"#ERROR!");
-    assert_eq!(model._get_text("A6"), *"#ERROR!");
-    assert_eq!(model._get_text("A7"), *"10.2");
-    assert_eq!(model._get_text("A8"), *"#ERROR!");
-
-    assert_eq!(model._get_text("A9"), *"#ERROR!");
-    assert_eq!(model._get_text("A10"), *"10");
-    assert_eq!(model._get_text("A11"), *"#ERROR!");
-    assert_eq!(model._get_text("A12"), *"#ERROR!");
-}

base/src/test/test_networkdays.rs

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

base/src/test/test_now.rs

@@ -1,30 +0,0 @@
-#![allow(clippy::unwrap_used)]
-
-use crate::{mock_time, test::util::new_empty_model};
-
-// 14:44 20 Mar 2023 Berlin
-const TIMESTAMP_2023: i64 = 1679319865208;
-
-#[test]
-fn arguments() {
-    let mut model = new_empty_model();
-
-    model._set("A1", "=NOW(1)");
-    model.evaluate();
-
-    assert_eq!(
-        model._get_text("A1"),
-        "#ERROR!",
-        "NOW should not accept arguments"
-    );
-}
-
-#[test]
-fn returns_date_time() {
-    mock_time::set_mock_time(TIMESTAMP_2023);
-    let mut model = new_empty_model();
-    model._set("A1", "=NOW()");
-    model.evaluate();
-    let text = model._get_text("A1");
-    assert_eq!(text, *"20/03/2023 13:44:25");
-}

base/src/test/test_number_format.rs

@@ -8,15 +8,6 @@ fn test_simple_format() {
     assert_eq!(formatted.text, "2.3".to_string());
 }
 
-#[test]
-fn test_maximum_zeros() {
-    let formatted = format_number(1.0 / 3.0, "#,##0.0000000000000000000", "en");
-    assert_eq!(formatted.text, "0.3333333333333330000".to_string());
-
-    let formatted = format_number(1234.0 + 1.0 / 3.0, "#,##0.0000000000000000000", "en");
-    assert_eq!(formatted.text, "1,234.3333333333300000000".to_string());
-}
-
 #[test]
 #[ignore = "not yet implemented"]
 fn test_wrong_locale() {

base/src/test/test_sheet_names.rs

@@ -1,16 +0,0 @@
-#![allow(clippy::unwrap_used)]
-
-use crate::test::util::new_empty_model;
-
-#[test]
-fn sheet_number_name() {
-    let mut model = new_empty_model();
-    model.new_sheet();
-    model._set("A1", "7");
-    model._set("A2", "=Sheet2!C3");
-    model.evaluate();
-    model.rename_sheet("Sheet2", "2024").unwrap();
-    model.evaluate();
-    assert_eq!(model.workbook.get_worksheet_names(), ["Sheet1", "2024"]);
-    assert_eq!(model._get_text("A2"), "0");
-}

base/src/test/test_today.rs

@@ -33,8 +33,7 @@ fn now_basic_utc() {
     model.evaluate();
 
     assert_eq!(model._get_text("A1"), *"20/03/2023");
-    // 45005.572511574
+    assert_eq!(model._get_text("A2"), *"45005.572511574");
-    assert_eq!(model._get_text("A2"), *"20/03/2023 13:44:25");
 }
 
 #[test]
@@ -47,5 +46,5 @@ fn now_basic_europe_berlin() {
 
     assert_eq!(model._get_text("A1"), *"20/03/2023");
     // This is UTC + 1 hour: 45005.572511574 + 1/24
-    assert_eq!(model._get_text("A2"), *"20/03/2023 14:44:25");
+    assert_eq!(model._get_text("A2"), *"45005.614178241");
 }

base/src/test/test_trigonometric.rs

@@ -96,14 +96,3 @@ fn test_fn_tan_pi2() {
     // This is consistent with IEEE 754 but inconsistent with Excel
     assert_eq!(model._get_text("A1"), *"1.63312E+16");
 }
-
-#[test]
-fn test_trigonometric_identity() {
-    let mut model = new_empty_model();
-    model._set("A1", "=COTH(1)*CSCH(1)");
-    model._set("A2", "=COSH(1)/(SINH(1))^2");
-    model._set("A3", "=A1=A2");
-    model.evaluate();
-
-    assert_eq!(model._get_text("A3"), *"TRUE");
-}

base/src/test/test_trigonometric_reciprocals.rs

@@ -1,53 +0,0 @@
-#![allow(clippy::unwrap_used)]
-
-use crate::test::util::new_empty_model;
-
-#[test]
-fn fn_arguments() {
-    let mut model = new_empty_model();
-    model._set("A1", "=CSC()");
-    model._set("A2", "=SEC()");
-    model._set("A3", "=COT()");
-
-    model._set("A4", "=CSCH()");
-    model._set("A5", "=SECH()");
-    model._set("A6", "=COTH()");
-
-    model._set("A7", "=ACOT()");
-    model._set("A8", "=ACOTH()");
-
-    model._set("B1", "=CSC(1, 2)");
-    model._set("B2", "=SEC(1, 2)");
-    model._set("B3", "=COT(1, 2)");
-
-    model._set("B4", "=CSCH(1, 2)");
-    model._set("B5", "=SECH(1, 2)");
-    model._set("B6", "=COTH(1, 2)");
-
-    model._set("B7", "=ACOT(1, 2)");
-    model._set("B8", "=ACOTH(1, 2)");
-
-    model.evaluate();
-
-    assert_eq!(model._get_text("A1"), *"#ERROR!");
-    assert_eq!(model._get_text("A2"), *"#ERROR!");
-    assert_eq!(model._get_text("A3"), *"#ERROR!");
-
-    assert_eq!(model._get_text("A4"), *"#ERROR!");
-    assert_eq!(model._get_text("A5"), *"#ERROR!");
-    assert_eq!(model._get_text("A6"), *"#ERROR!");
-
-    assert_eq!(model._get_text("A7"), *"#ERROR!");
-    assert_eq!(model._get_text("A8"), *"#ERROR!");
-
-    assert_eq!(model._get_text("B1"), *"#ERROR!");
-    assert_eq!(model._get_text("B2"), *"#ERROR!");
-    assert_eq!(model._get_text("B3"), *"#ERROR!");
-
-    assert_eq!(model._get_text("B4"), *"#ERROR!");
-    assert_eq!(model._get_text("B5"), *"#ERROR!");
-    assert_eq!(model._get_text("B6"), *"#ERROR!");
-
-    assert_eq!(model._get_text("B7"), *"#ERROR!");
-    assert_eq!(model._get_text("B8"), *"#ERROR!");
-}

base/src/test/test_weekday_return_types.rs

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

base/src/test/test_weeknum_return_types.rs

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

base/src/test/test_yearfrac_basis.rs

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

base/src/test/user_model/test_clear_cells.rs

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

base/src/test/user_model/test_defined_names.rs

@@ -254,19 +254,19 @@ fn invalid_names() {
     // spaces
     assert_eq!(
         model.new_defined_name("A real", None, "Sheet1!$A$1"),
-        Err("Name: Invalid defined name".to_string())
+        Err("Invalid defined name".to_string())
     );
 
     // Starts with number
     assert_eq!(
         model.new_defined_name("2real", None, "Sheet1!$A$1"),
-        Err("Name: Invalid defined name".to_string())
+        Err("Invalid defined name".to_string())
     );
 
     // Updating also fails
     assert_eq!(
         model.update_defined_name("MyName", None, "My Name", None, "Sheet1!$A$1"),
-        Err("Name: Invalid defined name".to_string())
+        Err("Invalid defined name".to_string())
     );
 }
 
@@ -284,13 +284,13 @@ fn already_existing() {
     // Can't create a new name with the same name
     assert_eq!(
         model.new_defined_name("MyName", None, "Sheet1!$A$2"),
-        Err("Name: Defined name already exists".to_string())
+        Err("Defined name already exists".to_string())
     );
 
     // Can't update one into an existing
     assert_eq!(
         model.update_defined_name("Another", None, "MyName", None, "Sheet1!$A$1"),
-        Err("Name: Defined name already exists".to_string())
+        Err("Defined name already exists".to_string())
     );
 }
 
@@ -304,17 +304,17 @@ fn invalid_sheet() {
 
     assert_eq!(
         model.new_defined_name("Mything", Some(2), "Sheet1!$A$1"),
-        Err("Scope: Invalid sheet index".to_string())
+        Err("Invalid sheet index".to_string())
     );
 
     assert_eq!(
         model.update_defined_name("MyName", None, "MyName", Some(2), "Sheet1!$A$1"),
-        Err("Scope: Invalid sheet index".to_string())
+        Err("Invalid sheet index".to_string())
     );
 
     assert_eq!(
         model.update_defined_name("MyName", Some(9), "YourName", None, "Sheet1!$A$1"),
-        Err("General: Failed to get old name".to_string())
+        Err("Invalid sheet index".to_string())
     );
 }
 
@@ -322,7 +322,7 @@ fn invalid_sheet() {
 fn invalid_formula() {
     let mut model = UserModel::new_empty("model", "en", "UTC").unwrap();
     model.set_user_input(0, 1, 1, "Hello").unwrap();
-    assert!(model.new_defined_name("MyName", None, "A1").is_err());
+    model.new_defined_name("MyName", None, "A1").unwrap();
 
     model.set_user_input(0, 1, 2, "=MyName").unwrap();
 

base/src/types.rs

@@ -445,13 +445,11 @@ impl Default for Fill {
 
 #[derive(Serialize, Deserialize, Encode, Decode, Debug, PartialEq, Eq, Clone)]
 #[serde(rename_all = "lowercase")]
-#[derive(Default)]
 pub enum HorizontalAlignment {
     Center,
     CenterContinuous,
     Distributed,
     Fill,
-    #[default]
     General,
     Justify,
     Left,
@@ -459,6 +457,11 @@ pub enum HorizontalAlignment {
 }
 
 // Note that alignment in "General" depends on type
+impl Default for HorizontalAlignment {
+    fn default() -> Self {
+        Self::General
+    }
+}
 
 impl HorizontalAlignment {
     fn is_default(&self) -> bool {
@@ -484,9 +487,7 @@ impl Display for HorizontalAlignment {
 
 #[derive(Serialize, Deserialize, Encode, Decode, Debug, PartialEq, Eq, Clone)]
 #[serde(rename_all = "lowercase")]
-#[derive(Default)]
 pub enum VerticalAlignment {
-    #[default]
     Bottom,
     Center,
     Distributed,
@@ -500,6 +501,12 @@ impl VerticalAlignment {
     }
 }
 
+impl Default for VerticalAlignment {
+    fn default() -> Self {
+        Self::Bottom
+    }
+}
+
 impl Display for VerticalAlignment {
     fn fmt(&self, formatter: &mut std::fmt::Formatter) -> std::fmt::Result {
         match self {

base/src/units.rs

@@ -329,7 +329,6 @@ impl Model {
             Function::Tbillyield => self.units_fn_percentage_2(args, cell),
             Function::Date => self.units_fn_dates(args, cell),
             Function::Today => self.units_fn_dates(args, cell),
-            Function::Now => self.units_fn_date_times(args, cell),
             _ => None,
         }
     }
@@ -376,8 +375,4 @@ impl Model {
         // TODO: update locale and use it here
         Some(Units::Date("dd/mm/yyyy".to_string()))
     }
-
-    fn units_fn_date_times(&self, _args: &[Node], _cell: &CellReferenceIndex) -> Option<Units> {
-        Some(Units::Date("dd/mm/yyyy hh:mm:ss".to_string()))
-    }
 }

base/src/user_model/common.rs

@@ -627,7 +627,6 @@ impl UserModel {
             }
         }
         self.push_diff_list(diff_list);
-        self.evaluate_if_not_paused();
         Ok(())
     }
 
@@ -657,7 +656,6 @@ impl UserModel {
             }
         }
         self.push_diff_list(diff_list);
-        self.evaluate_if_not_paused();
         Ok(())
     }
 
@@ -2001,10 +1999,7 @@ impl UserModel {
         new_scope: Option<u32>,
         new_formula: &str,
     ) -> Result<(), String> {
-        let old_formula = self
+        let old_formula = self.model.get_defined_name_formula(name, scope)?;
-            .model
-            .get_defined_name_formula(name, scope)
-            .map_err(|_| "General: Failed to get old name")?;
         let diff_list = vec![Diff::UpdateDefinedName {
             name: name.to_string(),
             scope,
@@ -2020,16 +2015,6 @@ impl UserModel {
         Ok(())
     }
 
-    /// validates a new defined name
-    pub fn is_valid_defined_name(
-        &self,
-        name: &str,
-        scope: Option<u32>,
-        formula: &str,
-    ) -> Result<Option<u32>, String> {
-        self.model.is_valid_defined_name(name, scope, formula)
-    }
-
     // **** Private methods ****** //
 
     pub(crate) fn push_diff_list(&mut self, diff_list: DiffList) {

bindings/nodejs/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 edition = "2021"
 name = "ironcalc_nodejs"
-version = "0.6.0"
+version = "0.5.0"
 
 [lib]
 crate-type = ["cdylib"]
@@ -10,7 +10,7 @@ crate-type = ["cdylib"]
 # Default enable napi4 feature, see https://nodejs.org/api/n-api.html#node-api-version-matrix
 napi = { version = "2.12.2", default-features = false, features = ["napi4", "serde-json"] }
 napi-derive = "2.12.2"
-ironcalc = { path = "../../xlsx", version = "0.6.0" }
+ironcalc = { path = "../../xlsx", version = "0.5.0" }
 serde = { version = "1.0", features = ["derive"] }
 
 [build-dependencies]

bindings/python/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "pyroncalc"
-version = "0.6.0"
+version = "0.5.7"
 edition = "2021"
 
 
@@ -12,7 +12,7 @@ crate-type = ["cdylib"]
 [dependencies]
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
-xlsx = { package= "ironcalc", path = "../../xlsx", version = "0.6.0" }
+xlsx = { package= "ironcalc", path = "../../xlsx", version = "0.5.0" }
 pyo3 = { version = "0.25", features = ["extension-module"] }
 bitcode = "0.6.3"
 

bindings/python/pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "ironcalc"
-version = "0.6.0"
+version = "0.5.7"
 description = "Create, edit and evaluate Excel spreadsheets"
 requires-python = ">=3.10"
 keywords = [

bindings/wasm/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "wasm"
-version = "0.6.0"
+version = "0.5.0"
 authors = ["Nicolas Hatcher <nicolas@theuniverse.today>"]
 description = "IronCalc Web bindings"
 license = "MIT/Apache-2.0"
@@ -14,7 +14,7 @@ crate-type = ["cdylib"]
 # Uses `../ironcalc/base` when used locally, and uses
 # the inicated version from crates.io when published.
 # https://doc.rust-lang.org/cargo/reference/specifying-dependencies.html#multiple-locations
-ironcalc_base = { path = "../../base", version = "0.6", features = ["use_regex_lite"] }
+ironcalc_base = { path = "../../base", version = "0.5", features = ["use_regex_lite"] }
 serde = { version = "1.0", features = ["derive"] }
 wasm-bindgen = "0.2.100"
 serde-wasm-bindgen = "0.4"

bindings/wasm/src/lib.rs

@@ -5,11 +5,7 @@ use wasm_bindgen::{
 };
 
 use ironcalc_base::{
-    expressions::{
+    expressions::{lexer::util::get_tokens as tokenizer, types::Area, utils::number_to_column},
-        lexer::util::get_tokens as tokenizer,
-        types::Area,
-        utils::{number_to_column, quote_name as quote_name_ic},
-    },
     types::{CellType, Style},
     worksheet::NavigationDirection,
     BorderArea, ClipboardData, UserModel as BaseModel,
@@ -35,11 +31,6 @@ pub fn column_name_from_number(column: i32) -> Result<String, JsError> {
     }
 }
 
-#[wasm_bindgen(js_name = "quoteName")]
-pub fn quote_name(name: &str) -> String {
-    quote_name_ic(name)
-}
-
 #[derive(Serialize)]
 struct DefinedName {
     name: String,
@@ -775,17 +766,4 @@ impl Model {
             .get_first_non_empty_in_row_after_column(sheet, row, column)
             .map_err(to_js_error)
     }
-
-    #[wasm_bindgen(js_name = "isValidDefinedName")]
-    pub fn is_valid_defined_name(
-        &self,
-        name: &str,
-        scope: Option<u32>,
-        formula: &str,
-    ) -> Result<(), JsError> {
-        match self.model.is_valid_defined_name(name, scope, formula) {
-            Ok(_) => Ok(()),
-            Err(e) => Err(to_js_error(e.to_string())),
-        }
-    }
 }

docker-compose.yml

@@ -1,14 +0,0 @@
-services:
-  server:
-    image: ghcr.io/ironcalc/ironcalc-server:0.6.0
-    build:
-      context: .
-      target: server-runtime
-
-  caddy:
-    image: ghcr.io/ironcalc/ironcalc-caddy:0.6.0
-    build:
-      context: .
-      target: caddy-runtime
-    ports:
-      - "2080:2080"

docs/package.json

@@ -6,7 +6,7 @@
   },
   "devDependencies": {
     "markdown-it-mathjax3": "^4.3.2",
-    "vitepress": "^v2.0.0-alpha.12",
+    "vitepress": "^v2.0.0-alpha.8",
     "vue": "^3.5.17"
   }
 }

docs/src/.vitepress/config.mts

@@ -2036,10 +2036,6 @@ export default defineConfig({
             text: "How to contribute",
             link: "/contributing/how-to-contribute",
           },
-          {
-            text: "Function documentation guide",
-            link: "/contributing/function-documentation-guide",
-          },
         ],
       },
     ],

docs/src/contributing/function-documentation-guide.md

@@ -1,389 +0,0 @@
----
-layout: doc
-outline: deep
-lang: en-US
----
-
-# Function Documentation Guide
-
-This guide explains how to document IronCalc functions following our established format and style conventions.
-
-## File Structure
-
-Function documentation files should be placed in the appropriate category directory under `src/functions/`. For example:
-
-- Financial functions: `src/functions/financial/function-name.md`
-- Text functions: `src/functions/text/function-name.md`
-- Logical functions: `src/functions/logical/function-name.md`
-
-## Required Frontmatter
-
-Every function documentation file must start with this frontmatter:
-
-```yaml
----
-layout: doc
-outline: deep
-lang: en-US
----
-```
-
-## Document Structure
-
-A complete function documentation should include the following sections in order:
-
-### 1. Title
-
-The title should be the function name followed by the word "function":
-
-```markdown
-# FV function
-```
-
-The function name should be written in uppercase when mentioned in the documentation.
-
-### 2. Draft Warning (Optional)
-
-If the function hasn't been implemented, include this warning box:
-
-```markdown
-::: warning
-**Note:** This draft page is under construction 🚧
-:::
-```
-
-If the function has been implemented but not documented, include this warning box:
-
-```markdown
-::: warning
-🚧 This function is implemented but currently lacks detailed documentation. For guidance, you may refer to the equivalent functionality in [Microsoft Excel documentation](https://support.microsoft.com/en-us/office/excel-functions-by-category-5f91f4e9-7b42-46d2-9bd1-63f26a86c0eb).
-:::
-```
-
-### 3. Overview
-
-Provide a brief, clear description of what the function does. If the function name is an acronym, expand it using underlined text:
-
-```markdown
-## Overview
-
-FV (<u>F</u>uture <u>V</u>alue) is a function of the Financial category that can be used to predict the future value of an investment or asset based on its present value.
-```
-
-Include:
-
-- Category (Financial, Text, Logical, etc.)
-- Primary purpose
-- Key use cases (if helpful)
-
-### 4. Usage
-
-This section contains multiple subsections:
-
-#### 4.1 Syntax
-
-Format the function syntax with color-coded argument types. Use the following color scheme:
-
-- **Numbers**: `#2F80ED` (blue)
-- **Booleans**: `#27AE60` (green)
-- **Text/Strings**: `#2F80ED` (orange)
-- **Arrays/Ranges**: `#EB5757` (red)
-
-**Format:**
-
-```markdown
-### Syntax
-
-**FUNCTION_NAME(<span title="Type" style="color:#HEXCODE">arg1</span>, <span title="Type" style="color:#HEXCODE">arg2</span>=default, ...) => <span title="ReturnType" style="color:#HEXCODE">return_value</span>**
-```
-
-**Example:**
-
-**FV(<span title="Number" style="color:#2F80ED">rate</span>, <span title="Number" style="color:#2F80ED">nper</span>, <span title="Number" style="color:#2F80ED">pmt</span>, [<span title="Number" style="color:#2F80ED">pv</span>], [<span title="Boolean" style="color:#27AE60">type</span>]  => <span title="Number" style="color:#2F80ED">fv</span>**
-
-```markdown
-### Syntax
-
-**FV(<span title="Number" style="color:#2F80ED">rate</span>, <span title="Number" style="color:#2F80ED">nper</span>, <span title="Number" style="color:#2F80ED">pmt</span>, <span title="Number" style="color:#2F80ED">pv</span>=0, <span title="Boolean" style="color:#27AE60">type</span>=FALSE) => <span title="Number" style="color:#2F80ED">fv</span>**
-```
-
-**Guidelines:**
-
-- Use `title` attribute to specify the data type
-- Use `style="color:#HEXCODE"` for syntax highlighting
-- Use square brackets for optional arguments
-- Show the return type after `=>`
-- Make the entire syntax **bold**
-
-#### 4.2 Argument Descriptions
-
-List each argument with:
-
-- Argument name in _italics_
-- Data type link (e.g., `[number](/features/value-types#numbers)`)
-- Required or optional indicator
-- Description
-
-**Format:**
-
-```markdown
-### Argument descriptions
-
-- _argname_ ([datatype](/features/value-types#datatype), [required|optional](/features/optional-arguments.md)). Description of the argument.
-```
-
-**Example:**
-
-```markdown
-### Argument descriptions
-
-- _rate_ ([number](/features/value-types#numbers), required). The fixed percentage interest rate or yield per period.
-- _pv_ ([number](/features/value-types#numbers), [optional](/features/optional-arguments.md)). "pv" is the <u>p</u>resent <u>v</u>alue or starting amount of the asset (default 0).
-- _type_ ([Boolean](/features/value-types#booleans), [optional](/features/optional-arguments.md)). A logical value indicating whether the payment due dates are at the end (FALSE or 0) of the compounding periods or at the beginning (TRUE or any non-zero value). The default is FALSE when omitted.
-```
-
-**Guidelines:**
-
-- Use bullet points (`*`)
-- Italicize argument names with `*argname*`
-- Link to value types documentation
-- Link to optional arguments page when applicable
-- Expand acronyms in descriptions using `<u>` tags if helpful
-- Mention default values for optional arguments
-
-#### 4.3 Additional Guidance
-
-Provide tips, best practices and important notes about using the function:
-
-```markdown
-### Additional guidance
-
-- Make sure that the _rate_ argument specifies the interest rate or yield applicable to the compounding period.
-- The _pmt_ and _pv_ arguments should be expressed in the same currency unit.
-- To ensure a worthwhile result, one of the _pmt_ and _pv_ arguments should be non-zero.
-```
-
-#### 4.4 Returned Value
-
-Describe what the function returns:
-
-```markdown
-### Returned value
-
-FV returns a [number](/features/value-types#numbers) representing the future value expressed in the same [currency unit](/features/units) that was used for the _pmt_ and _pv_ arguments.
-```
-
-Include:
-
-- Return type (with link to value types if applicable)
-- Units or format if relevant
-- Any important characteristics
-
-#### 4.5 Error Conditions
-
-List all error scenarios the function may encounter:
-
-```markdown
-### Error conditions
-
-- In common with many other IronCalc functions, FV propagates errors that are found in any of its arguments.
-- If too few or too many arguments are supplied, FV returns the [`#ERROR!`](/features/error-types.md#error) error.
-- If the value of any of the _rate_, _nper_, _pmt_ or _pv_ arguments is not (or cannot be converted to) a [number](/features/value-types#numbers), then FV returns the [`#VALUE!`](/features/error-types.md#value) error.
-- If the value of the _type_ argument is not (or cannot be converted to) a [Boolean](/features/value-types#booleans), then FV again returns the [`#VALUE!`](/features/error-types.md#value) error.
-- For some combinations of valid argument values, FV may return a [`#NUM!`](/features/error-types.md#num) error or a [`#DIV/0!`](/features/error-types.md#div-0) error.
-```
-
-**Guidelines:**
-
-- Use bullet points
-- Format error types using backticks and link to the error types page: `` [`#ERROR!`](/features/error-types.md#error) ``
-- Reference argument names in italics when discussing specific arguments
-- Add the include directive at the end if using the error details snippet:
-
-```markdown
-<!--@include: ../markdown-snippets/error-type-details.txt-->
-```
-
-### 5. Details (Optional but Recommended)
-
-For functions with mathematical formulas or complex behavior, include a Details section. This section can also include plots, graphs or charts to help clarify the function's behavior. 
-
-```markdown
-## Details
-
-- If $\text{type} \neq 0$, $\text{fv}$ is given by the equation:
-  $$ \text{fv} = -\text{pv} \times (1 + \text{rate})^\text{nper} - \dfrac{\text{pmt}\times\big({(1+\text{rate})^\text{nper}-1}\big) \times(1+\text{rate})}{\text{rate}}$$
-
-- If $\text{type} = 0$, $\text{fv}$ is given by the equation:
-  $$ \text{fv} = -\text{pv} \times (1 + \text{rate})^{\text{nper}} - \dfrac{\text{pmt}\times\big({(1+\text{rate})^\text{nper}-1}\big)}{\text{rate}}$$
-```
-
-**Guidelines:**
-
-- Use LaTeX math notation with `$` for inline and `$$` for block equations
-- Use `\text{}` for variable names in equations
-- Explain special cases or edge conditions
-
-### 6. Examples
-
-Link to interactive examples in IronCalc:
-
-```markdown
-## Examples
-
-[See some examples in IronCalc](https://app.ironcalc.com/?example=functionname).
-```
-
-Replace `functionname` with the actual function name (lowercase).
-
-### 7. Links
-
-Provide external references and related functions:
-
-```markdown
-## Links
-
-- For more information about the concept of "future value" in finance, visit Wikipedia's [Future value](https://en.wikipedia.org/wiki/Future_value) page.
-- See also IronCalc's [NPER](/functions/financial/nper), [PMT](/functions/financial/pmt), [PV](/functions/financial/pv) and [RATE](/functions/financial/rate) functions.
-- Visit Microsoft Excel's [FV function](https://support.microsoft.com/en-gb/office/fv-function-2eef9f44-a084-4c61-bdd8-4fe4bb1b71b3) page.
-- Both [Google Sheets](https://support.google.com/docs/answer/3093224) and [LibreOffice Calc](https://wiki.documentfoundation.org/Documentation/Calc_Functions/FV) provide versions of the FV function.
-```
-
-**Guidelines:**
-
-- Include Wikipedia links for concepts when available
-- Link to related IronCalc functions in the same category
-- Include links to equivalent functions in Excel, Google Sheets, and LibreOffice Calc
-- Use bullet points
-
-## Syntax Coloring Reference
-
-### Color Codes
-
-| Data Type   | Hex Color | Usage                                   |
-| ----------- | --------- | --------------------------------------- |
-| Number      | `#2F80ED` | All numeric arguments and return values |
-| Boolean     | `#27AE60` | TRUE/FALSE arguments                    |
-| Text/String | `#F2994A` | Text arguments                          |
-| Array/Range | `#EB5757` | Array or range arguments                |
-
-### Syntax Highlighting Template
-
-```html
-<span title="Type" style="color:#HEXCODE">argument_name</span>
-```
-
-**Examples:**
-
-- Number: `<span title="Number" style="color:#2F80ED">rate</span>`
-- Boolean: `<span title="Boolean" style="color:#27AE60">type</span>`
-- Text: `<span title="Text" style="color:#F2994A">text</span>`
-
-## Formatting Conventions
-
-### Text Formatting
-
-- **Function names**: Use exact case as in IronCalc
-- **Argument names**: Use _italics_ when referencing in prose
-- **Acronyms**: Expand using `<u>` tags: `<u>F</u>uture <u>V</u>alue`
-- **Code/values**: Use backticks for error codes: `` `#ERROR!` ``
-- **Links**: Use descriptive link text, not raw URLs
-
-### Section Headers
-
-- Use `#` for the page title with the function name (e.g., FV Function)
-- Use `##` for main sections (Overview, Usage, Details, Examples, Links)
-- Use `###` for subsections (Syntax, Argument descriptions, etc.)
-
-### Lists
-
-- Use bullet points (`*`) for argument descriptions and error conditions
-- Use numbered lists only when order matters
-
-## Checklist
-
-Before submitting a function documentation, ensure:
-
-- [ ] Frontmatter is correct
-- [ ] Title follows the format "FUNCTION_NAME function"
-- [ ] Overview clearly explains the function's purpose
-- [ ] Syntax is color-coded correctly
-- [ ] All arguments are documented with correct types
-- [ ] Required vs optional arguments are clearly marked
-- [ ] Return value is described
-- [ ] Error conditions are comprehensive
-- [ ] Examples link is included
-- [ ] Links section includes relevant references
-- [ ] Mathematical formulas (if any) use proper LaTeX syntax
-- [ ] All internal links use relative paths
-- [ ] Spelling and grammar are correct
-
-## Example Template
-
-```markdown
----
-layout: doc
-outline: deep
-lang: en-US
----
-
-# FUNCTION_NAME function
-
-::: warning
-**Note:** This draft page is under construction 🚧
-:::
-
-## Overview
-
-FUNCTION_NAME (<u>A</u>cronym <u>E</u>xplanation) is a function of the [Category] category that can be used to [primary purpose].
-
-[Additional context about when to use this function or related functions.]
-
-## Usage
-
-### Syntax
-
-**FUNCTION_NAME(<span title="Type" style="color:#2F80ED">arg1</span>, [<span title="Type" style="color:#2F80ED">arg2</span>], [<span title="Boolean" style="color:#27AE60">arg3</span>]) => <span title="Type" style="color:#2F80ED">return_value</span>**
-
-### Argument descriptions
-
-- _arg1_ ([type](/features/value-types#type), required). Description.
-- _arg2_ ([type](/features/value-types#type), [optional](/features/optional-arguments.md)). Description (default value).
-- _arg3_ ([Boolean](/features/value-types#booleans), [optional](/features/optional-arguments.md)). Description (default FALSE).
-
-### Additional guidance
-
-- Tip or best practice.
-- Another important note.
-
-### Returned value
-
-FUNCTION_NAME returns a [type](/features/value-types#type) representing [description].
-
-### Error conditions
-
-- General error propagation note.
-- Specific error condition with [`#ERROR!`](/features/error-types.md#error) link.
-- Another error condition.
-
-<!--@include: ../markdown-snippets/error-type-details.txt-->
-
-## Details
-
-[Mathematical formulas or detailed explanations if needed]
-
-## Examples
-
-[See some examples in IronCalc](https://app.ironcalc.com/?example=functionname).
-
-## Links
-
-- Wikipedia link if applicable.
-- Related IronCalc functions.
-- Microsoft Excel documentation.
-- Google Sheets and LibreOffice Calc links.
-```
-
-## Questions?
-
-If you have questions about documenting functions, reach out on our [Discord Channel](https://discord.com/invite/zZYWfh3RHJ) or check existing function documentation for examples.

docs/src/contributing/how-to-contribute.md

@@ -6,10 +6,4 @@ lang: en-US
 
 # How to Contribute
 
-If you want to give us a hand, take a look at our [GitHub repository](https://github.com/ironcalc/IronCalc?tab=readme-ov-file#collaborators-needed-call-to-action) – we've marked some issues there with the tag 'good first issue' that could serve you as a starting point.
+If you want to give us a hand, take a look at our [GitHub repository](https://github.com/ironcalc/IronCalc?tab=readme-ov-file#collaborators-needed-call-to-action), join our [Discord Channel](https://discord.com/invite/zZYWfh3RHJ) or send us an email to [hello@ironcalc.com](mailto:hello@ironcalc.com).
-
-If you also want to discuss topics, share your thoughts or just say 'hi', you can join our [Discord Channel](https://discord.com/invite/zZYWfh3RHJ) or send us an email to [hello@ironcalc.com](mailto:hello@ironcalc.com).
-
-## Documentation
-
-If you're interested in contributing to our documentation, especially function documentation, please see our [Function Documentation Guide](/contributing/function-documentation-guide).

docs/src/features/value-types.md

@@ -68,8 +68,6 @@ Using IronCalc, a complex number is a string of the form "1+j3".
 
 ## Arrays
 
-## Ranges
-
 ## References
 
 A reference is a pointer to a single cell or a range of cells. The reference can either be entered manually, for example "A4", or as the result of a calculation, such as the OFFSET Function or the INDIRECT Function. A reference can also be built, for example with the Colon (\:) Operator. 

docs/src/functions/date-and-time.md

@@ -6,32 +6,33 @@ lang: en-US
 
 # Date and Time functions
 
-All Date and Time functions are already supported in IronCalc.
+At the moment IronCalc only supports a few function in this section.  
+You can track the progress in this [GitHub issue](https://github.com/ironcalc/IronCalc/issues/48).
 
 | Function         | Status                                         | Documentation |
 | ---------------- | ---------------------------------------------- | ------------- |
 | DATE             | <Badge type="tip" text="Available" />          | –             |
-| DATEDIF          | <Badge type="tip" text="Available" />          | –             |
+| DATEDIF          | <Badge type="info" text="Not implemented yet" /> | –             |
-| DATEVALUE        | <Badge type="tip" text="Available" />          | [DATEVALUE](date_and_time/datevalue) |
+| DATEVALUE        | <Badge type="info" text="Not implemented yet" /> | –             |
 | DAY              | <Badge type="tip" text="Available" />          | [DAY](date_and_time/day) |
-| DAYS             | <Badge type="tip" text="Available" />          | –             |
+| DAYS             | <Badge type="info" text="Not implemented yet" /> | –             |
-| DAYS360          | <Badge type="tip" text="Available" />          | –             |
+| DAYS360          | <Badge type="info" text="Not implemented yet" /> | –             |
 | EDATE            | <Badge type="tip" text="Available" />          | –             |
 | EOMONTH          | <Badge type="tip" text="Available" />          | –             |
-| HOUR             | <Badge type="tip" text="Available" />          | –             |
+| HOUR             | <Badge type="info" text="Not implemented yet" /> | –             |
-| ISOWEEKNUM       | <Badge type="tip" text="Available" />          | –             |
+| ISOWEEKNUM       | <Badge type="info" text="Not implemented yet" /> | –             |
-| MINUTE           | <Badge type="tip" text="Available" />          | –             |
+| MINUTE           | <Badge type="info" text="Not implemented yet" /> | –             |
 | MONTH            | <Badge type="tip" text="Available" />          | [MONTH](date_and_time/month) |
-| NETWORKDAYS      | <Badge type="tip" text="Available" />          | [NETWORKDAYS](date_and_time/networkdays) |
+| NETWORKDAYS      | <Badge type="info" text="Not implemented yet" /> | –             |
-| NETWORKDAYS.INTL | <Badge type="tip" text="Available" />          | [NETWORKDAYS.INTL](date_and_time/networkdays.intl) |
+| NETWORKDAYS.INTL | <Badge type="info" text="Not implemented yet" /> | –             |
 | NOW              | <Badge type="tip" text="Available" />          | –             |
-| SECOND           | <Badge type="tip" text="Available" />          | –             |
+| SECOND           | <Badge type="info" text="Not implemented yet" /> | –             |
-| TIME             | <Badge type="tip" text="Available" />          | –             |
+| TIME             | <Badge type="info" text="Not implemented yet" /> | –             |
-| TIMEVALUE        | <Badge type="tip" text="Available" />          | [TIMEVALUE](date_and_time/timevalue) |
+| TIMEVALUE        | <Badge type="info" text="Not implemented yet" /> | –             |
 | TODAY            | <Badge type="tip" text="Available" />          | –             |
-| WEEKDAY          | <Badge type="tip" text="Available" />          | –             |
+| WEEKDAY          | <Badge type="info" text="Not implemented yet" /> | –             |
-| WEEKNUM          | <Badge type="tip" text="Available" />          | –             |
+| WEEKNUM          | <Badge type="info" text="Not implemented yet" /> | –             |
-| WORKDAY          | <Badge type="tip" text="Available" />          | –             |
+| WORKDAY          | <Badge type="info" text="Not implemented yet" /> | –             |
-| WORKDAY.INTL     | <Badge type="tip" text="Available" />          | –             |
+| WORKDAY.INTL     | <Badge type="info" text="Not implemented yet" /> | –             |
 | YEAR             | <Badge type="tip" text="Available" />          | [YEAR](date_and_time/year) |
-| YEARFRAC         | <Badge type="tip" text="Available" />          | –             |
+| YEARFRAC         | <Badge type="info" text="Not implemented yet" /> | –             |

docs/src/functions/date_and_time/datedif.md

@@ -7,5 +7,6 @@ lang: en-US
 # DATEDIF
 
 ::: warning
-🚧 This function is implemented but currently lacks detailed documentation. For guidance, you may refer to the equivalent functionality in [Microsoft Excel documentation](https://support.microsoft.com/en-us/office/excel-functions-by-category-5f91f4e9-7b42-46d2-9bd1-63f26a86c0eb).
+🚧 This function is not yet available in IronCalc.
+[Follow development here](https://github.com/ironcalc/IronCalc/labels/Functions)
 :::

docs/src/functions/date_and_time/datevalue.md

@@ -4,41 +4,9 @@ outline: deep
 lang: en-US
 ---
 
-# DATEVALUE function
+# DATEVALUE
 
-## Overview
+::: warning
-DATEVALUE is a function of the Date and Time category that converts a date stored as text to a [serial number](/features/serial-numbers.md) corresponding to a date value.
+🚧 This function is not yet available in IronCalc.
-
+[Follow development here](https://github.com/ironcalc/IronCalc/labels/Functions)
-## Usage
+:::
-### Syntax
-**DATEVALUE(<span title="Text" style="color:#1E88E5">date_text</span>) => <span title="Number" style="color:#1E88E5">datevalue</span>**
-
-### Argument descriptions
-* *date_text* ([text](/features/value-types#strings), required). A text string that represents a date in a known format. The text must represent a date between December 31, 1899 and December 31, 9999.
-
-### Additional guidance
-* If the year portion of the *date_text* argument is omitted, DATEVALUE uses the current year from the system clock.
-* Time information in the *date_text* argument is ignored. DATEVALUE processes only the date portion.
-
-### Returned value
-DATEVALUE returns a [number](/features/value-types#numbers) that represents the date as a [serial number](/features/serial-numbers.md). The serial number corresponds to the number of days since December 31, 1899.
-
-### Error conditions
-* In common with many other IronCalc functions, DATEVALUE propagates errors that are found in its argument.
-* If no argument, or more than one argument, is supplied, then DATEVALUE returns the [`#ERROR!`](/features/error-types.md#error) error.
-* If the value of the *date_text* argument is not (or cannot be converted to) a [text](/features/value-types#strings) value, then DATEVALUE returns the [`#VALUE!`](/features/error-types.md#value) error.
-* If the *date_text* argument represents a date outside the valid range (before December 31, 1899 or after December 31, 9999), then DATEVALUE returns the [`#VALUE!`](/features/error-types.md#value) error.
-* If the *date_text* argument cannot be recognized as a valid date format, then DATEVALUE returns the [`#VALUE!`](/features/error-types.md#value) error.
-<!--@include: ../markdown-snippets/error-type-details.txt-->
-
-<!-- ## Details
-For more information on how IronCalc processes Date and Time functions and values, visit [Date and Time](/features/serial-numbers.md) 
-
-## Examples
-[See some examples in IronCalc](https://app.ironcalc.com/?example=datevalue).
--->
-
-## Links
-* See also IronCalc's [TIMEVALUE](/functions/date_and_time/timevalue.md) function for converting time text to serial numbers.
-* Visit Microsoft Excel's [DATEVALUE function](https://support.microsoft.com/en-us/office/datevalue-function-df8b07d4-7761-4a93-bc33-b7471bbff252) page.
-* Both [Google Sheets](https://support.google.com/docs/answer/3093039) and [LibreOffice Calc](https://wiki.documentfoundation.org/Documentation/Calc_Functions/DATEVALUE) provide versions of the DATEVALUE function.

docs/src/functions/date_and_time/days.md

@@ -7,5 +7,6 @@ lang: en-US
 # DAYS
 
 ::: warning
-🚧 This function is implemented but currently lacks detailed documentation. For guidance, you may refer to the equivalent functionality in [Microsoft Excel documentation](https://support.microsoft.com/en-us/office/excel-functions-by-category-5f91f4e9-7b42-46d2-9bd1-63f26a86c0eb).
+🚧 This function is not yet available in IronCalc.
+[Follow development here](https://github.com/ironcalc/IronCalc/labels/Functions)
 :::

docs/src/functions/date_and_time/days360.md

@@ -7,5 +7,6 @@ lang: en-US
 # DAYS360
 
 ::: warning
-🚧 This function is implemented but currently lacks detailed documentation. For guidance, you may refer to the equivalent functionality in [Microsoft Excel documentation](https://support.microsoft.com/en-us/office/excel-functions-by-category-5f91f4e9-7b42-46d2-9bd1-63f26a86c0eb).
+🚧 This function is not yet available in IronCalc.
+[Follow development here](https://github.com/ironcalc/IronCalc/labels/Functions)
 :::

docs/src/functions/date_and_time/hour.md

@@ -7,6 +7,6 @@ lang: en-US
 # HOUR
 
 ::: warning
-**Note:** This draft page is under construction 🚧
+🚧 This function is not yet available in IronCalc.
-The HOUR function is implemented and available in IronCalc.
+[Follow development here](https://github.com/ironcalc/IronCalc/labels/Functions)
 :::

docs/src/functions/date_and_time/isoweeknum.md

@@ -7,5 +7,6 @@ lang: en-US
 # ISOWEEKNUM
 
 ::: warning
-🚧 This function is implemented but currently lacks detailed documentation. For guidance, you may refer to the equivalent functionality in [Microsoft Excel documentation](https://support.microsoft.com/en-us/office/excel-functions-by-category-5f91f4e9-7b42-46d2-9bd1-63f26a86c0eb).
+🚧 This function is not yet available in IronCalc.
+[Follow development here](https://github.com/ironcalc/IronCalc/labels/Functions)
 :::

docs/src/functions/date_and_time/minute.md

@@ -7,6 +7,6 @@ lang: en-US
 # MINUTE
 
 ::: warning
-**Note:** This draft page is under construction 🚧
+🚧 This function is not yet available in IronCalc.
-The MINUTE function is implemented and available in IronCalc.
+[Follow development here](https://github.com/ironcalc/IronCalc/labels/Functions)
 :::

docs/src/functions/date_and_time/networkdays.intl.md

@@ -4,73 +4,9 @@ outline: deep
 lang: en-US
 ---
 
-# NETWORKDAYS.INTL function
+# NETWORKDAYS.INTL
 
 ::: warning
-**Note:** This draft page is under construction 🚧
+🚧 This function is not yet available in IronCalc.
-:::
+[Follow development here](https://github.com/ironcalc/IronCalc/labels/Functions)
-
+:::
-## Overview
-NETWORKDAYS.INTL is a function of the Date and Time category that calculates the number of working days between two dates, with customizable weekend definitions and optionally specified holidays.
-
-## Usage
-
-### Syntax
-**NETWORKDAYS.INTL(<span title="Number" style="color:#1E88E5">start_date</span>, <span title="Number" style="color:#1E88E5">end_date</span>, [<span title="Number or String" style="color:#4CAF50">weekend</span>], [<span title="Array" style="color:#E91E63">holidays</span>]) => <span title="Number" style="color:#1E88E5">workdays</span>**
-
-### Argument descriptions
-* *start_date* ([number](/features/value-types#numbers), required). The start date expressed as a [serial number](/features/serial-numbers.md).
-* *end_date* ([number](/features/value-types#numbers), required). The end date expressed as a [serial number](/features/serial-numbers.md).
-* *weekend* ([number](/features/value-types#numbers) or [string](/features/value-types#strings), optional). Defines which days are considered weekends. Default is 1 (Saturday-Sunday).
-* *holidays* ([array](/features/value-types#arrays) or [range](/features/value-types#ranges), optional). A list of dates to exclude from the calculation, expressed as serial numbers.
-
-### Weekend parameter options
-The _weekend_ parameter can be specified in two ways:
-
-**Numeric codes:**
-- 1 (default): Saturday and Sunday
-- 2: Sunday and Monday
-- 3: Monday and Tuesday
-- 4: Tuesday and Wednesday
-- 5: Wednesday and Thursday
-- 6: Thursday and Friday
-- 7: Friday and Saturday
-- 11: Sunday only
-- 12: Monday only
-- 13: Tuesday only
-- 14: Wednesday only
-- 15: Thursday only
-- 16: Friday only
-- 17: Saturday only
-
-**String pattern:** A 7-character string of "0" and "1" where "1" indicates a weekend day. The string represents Monday through Sunday. For example, "0000011" means Saturday and Sunday are weekends.
-
-### Additional guidance
-- If the supplied _start_date_ and _end_date_ arguments have fractional parts, NETWORKDAYS.INTL uses their [floor values](https://en.wikipedia.org/wiki/Floor_and_ceiling_functions).
-- If _start_date_ is later than _end_date_, the function returns a negative number.
-- Empty cells in the _holidays_ array are ignored.
-- The calculation includes both the start and end dates if they are workdays.
-
-### Returned value
-NETWORKDAYS.INTL returns a [number](/features/value-types#numbers) representing the count of working days between the two dates.
-
-### Error conditions
-* In common with many other IronCalc functions, NETWORKDAYS.INTL propagates errors that are found in its arguments.
-* If fewer than 2 or more than 4 arguments are supplied, then NETWORKDAYS.INTL returns the [`#ERROR!`](/features/error-types.md#error) error.
-* If the *start_date* or *end_date* arguments are not (or cannot be converted to) [numbers](/features/value-types#numbers), then NETWORKDAYS.INTL returns the [`#VALUE!`](/features/error-types.md#value) error.
-* If the *start_date* or *end_date* values are outside the valid date range, then NETWORKDAYS.INTL returns the [`#NUM!`](/features/error-types.md#num) error.
-* If the *weekend* parameter is an invalid numeric code or an improperly formatted string, then NETWORKDAYS.INTL returns the [`#NUM!`](/features/error-types.md#num) or [`#VALUE!`](/features/error-types.md#value) error.
-* If the *holidays* array contains non-numeric values, then NETWORKDAYS.INTL returns the [`#VALUE!`](/features/error-types.md#value) error.
-
-<!--@include: ../markdown-snippets/error-type-details.txt-->
-
-## Details
-IronCalc utilizes Rust's [chrono](https://docs.rs/chrono/latest/chrono/) crate to implement the NETWORKDAYS.INTL function. This function provides more flexibility than NETWORKDAYS by allowing custom weekend definitions.
-
-## Examples
-[See some examples in IronCalc](https://app.ironcalc.com/?example=networkdays-intl).
-
-## Links
-* See also IronCalc's [NETWORKDAYS](/functions/date_and_time/networkdays.md) function for the basic version with fixed weekends.
-* Visit Microsoft Excel's [NETWORKDAYS.INTL function](https://support.microsoft.com/en-us/office/networkdays-intl-function-a9b26239-4f20-46a1-9ab8-4e925bfd5e28) page.
-* Both [Google Sheets](https://support.google.com/docs/answer/3093019) and [LibreOffice Calc](https://wiki.documentfoundation.org/Documentation/Calc_Functions/NETWORKDAYS.INTL) provide versions of the NETWORKDAYS.INTL function.

docs/src/functions/date_and_time/networkdays.md

@@ -4,51 +4,9 @@ outline: deep
 lang: en-US
 ---
 
-# NETWORKDAYS function
+# NETWORKDAYS
 
 ::: warning
-**Note:** This draft page is under construction 🚧
+🚧 This function is not yet available in IronCalc.
-:::
+[Follow development here](https://github.com/ironcalc/IronCalc/labels/Functions)
-
+:::
-## Overview
-NETWORKDAYS is a function of the Date and Time category that calculates the number of working days between two dates, excluding weekends (Saturday and Sunday by default) and optionally specified holidays.
-
-## Usage
-
-### Syntax
-**NETWORKDAYS(<span title="Number" style="color:#1E88E5">start_date</span>, <span title="Number" style="color:#1E88E5">end_date</span>, [<span title="Array" style="color:#E91E63">holidays</span>]) => <span title="Number" style="color:#1E88E5">workdays</span>**
-
-### Argument descriptions
-* *start_date* ([number](/features/value-types#numbers), required). The start date expressed as a [serial number](/features/serial-numbers.md).
-* *end_date* ([number](/features/value-types#numbers), required). The end date expressed as a [serial number](/features/serial-numbers.md).
-* *holidays* ([array](/features/value-types#arrays) or [range](/features/value-types#ranges), optional). A list of dates to exclude from the calculation, expressed as serial numbers.
-
-### Additional guidance
-- If the supplied _start_date_ and _end_date_ arguments have fractional parts, NETWORKDAYS uses their [floor values](https://en.wikipedia.org/wiki/Floor_and_ceiling_functions).
-- If _start_date_ is later than _end_date_, the function returns a negative number.
-- Weekend days are Saturday and Sunday by default. Use [NETWORKDAYS.INTL](networkdays.intl) for custom weekend definitions.
-- Empty cells in the _holidays_ array are ignored.
-- The calculation includes both the start and end dates if they are workdays.
-
-### Returned value
-NETWORKDAYS returns a [number](/features/value-types#numbers) representing the count of working days between the two dates.
-
-### Error conditions
-* In common with many other IronCalc functions, NETWORKDAYS propagates errors that are found in its arguments.
-* If fewer than 2 or more than 3 arguments are supplied, then NETWORKDAYS returns the [`#ERROR!`](/features/error-types.md#error) error.
-* If the *start_date* or *end_date* arguments are not (or cannot be converted to) [numbers](/features/value-types#numbers), then NETWORKDAYS returns the [`#VALUE!`](/features/error-types.md#value) error.
-* If the *start_date* or *end_date* values are outside the valid date range, then NETWORKDAYS returns the [`#NUM!`](/features/error-types.md#num) error.
-* If the *holidays* array contains non-numeric values, then NETWORKDAYS returns the [`#VALUE!`](/features/error-types.md#value) error.
-
-<!--@include: ../markdown-snippets/error-type-details.txt-->
-
-## Details
-IronCalc utilizes Rust's [chrono](https://docs.rs/chrono/latest/chrono/) crate to implement the NETWORKDAYS function. The function treats Saturday and Sunday as weekend days.
-
-## Examples
-[See some examples in IronCalc](https://app.ironcalc.com/?example=networkdays).
-
-## Links
-* See also IronCalc's [NETWORKDAYS.INTL](/functions/date_and_time/networkdays.intl.md) function for custom weekend definitions.
-* Visit Microsoft Excel's [NETWORKDAYS function](https://support.microsoft.com/en-us/office/networkdays-function-48e717bf-a7a3-495f-969e-5005e3eb18e7) page.
-* Both [Google Sheets](https://support.google.com/docs/answer/3093018) and [LibreOffice Calc](https://wiki.documentfoundation.org/Documentation/Calc_Functions/NETWORKDAYS) provide versions of the NETWORKDAYS function.

docs/src/functions/date_and_time/second.md

@@ -7,6 +7,6 @@ lang: en-US
 # SECOND
 
 ::: warning
-**Note:** This draft page is under construction 🚧
+🚧 This function is not yet available in IronCalc.
-The SECOND function is implemented and available in IronCalc.
+[Follow development here](https://github.com/ironcalc/IronCalc/labels/Functions)
 :::

docs/src/functions/date_and_time/time.md

@@ -7,6 +7,6 @@ lang: en-US
 # TIME
 
 ::: warning
-**Note:** This draft page is under construction 🚧
+🚧 This function is not yet available in IronCalc.
-The TIME function is implemented and available in IronCalc.
+[Follow development here](https://github.com/ironcalc/IronCalc/labels/Functions)
 :::

docs/src/functions/date_and_time/timevalue.md

@@ -4,42 +4,9 @@ outline: deep
 lang: en-US
 ---
 
-# TIMEVALUE function
+# TIMEVALUE
 
-## Overview
+::: warning
-TIMEVALUE is a function of the Date and Time category that converts a time stored as text to a [serial number](/features/serial-numbers.md) corresponding to a time value. The serial number represents time as a decimal fraction of a 24-hour day (e.g., 0.5 represents 12:00:00 noon).
+🚧 This function is not yet available in IronCalc.
-
+[Follow development here](https://github.com/ironcalc/IronCalc/labels/Functions)
-## Usage
+:::
-### Syntax
-**TIMEVALUE(<span title="Text" style="color:#1E88E5">time_text</span>) => <span title="Number" style="color:#1E88E5">timevalue</span>**
-
-### Argument descriptions
-* *time_text* ([text](/features/value-types#strings), required). A text string that represents a time in a known format. The text must represent a time between 00:00:00 and 23:59:59.
-
-### Additional guidance
-* Date information in the *time_text* argument is ignored. TIMEVALUE processes only the time portion.
-* The function can handle various time formats, including both 12-hour and 24-hour formats, as well as text that includes both date and time information.
-
-### Returned value
-TIMEVALUE returns a [number](/features/value-types#numbers) that represents the time as a [serial number](/features/serial-numbers.md). The serial number is a decimal fraction of a 24-hour day, where:
-* 0.0 represents 00:00:00 (midnight)
-* 0.5 represents 12:00:00 (midday)
-* 0.99999... represents 23:59:59 (just before midnight)
-
-### Error conditions
-* In common with many other IronCalc functions, TIMEVALUE propagates errors that are found in its argument.
-* If no argument, or more than one argument, is supplied, then TIMEVALUE returns the [`#ERROR!`](/features/error-types.md#error) error.
-* If the value of the *time_text* argument is not (or cannot be converted to) a [text](/features/value-types#strings) value, then TIMEVALUE returns the [`#VALUE!`](/features/error-types.md#value) error.
-* If the *time_text* argument represents a time outside the valid range, then TIMEVALUE returns the [`#VALUE!`](/features/error-types.md#value) error.
-* If the *time_text* argument cannot be recognized as a valid time format, then TIMEVALUE returns the [`#VALUE!`](/features/error-types.md#value) error.
-<!--@include: ../markdown-snippets/error-type-details.txt-->
-
-<!--
-## Examples
-[See some examples in IronCalc](https://app.ironcalc.com/?example=timevalue).
--->
-
-## Links
-* See also IronCalc's [DATEVALUE](/functions/date_and_time/datevalue.md) function for converting date text to serial numbers.
-* Visit Microsoft Excel's [TIMEVALUE function](https://support.microsoft.com/en-us/office/timevalue-function-0b615c12-33d8-4431-bf3d-f3eb6d186645) page.
-* Both [Google Sheets](https://support.google.com/docs/answer/3267350) and [LibreOffice Calc](https://wiki.documentfoundation.org/Documentation/Calc_Functions/TIMEVALUE) provide versions of the TIMEVALUE function.

docs/src/functions/date_and_time/weekday.md

@@ -7,5 +7,6 @@ lang: en-US
 # WEEKDAY
 
 ::: warning
-🚧 This function is implemented but currently lacks detailed documentation. For guidance, you may refer to the equivalent functionality in [Microsoft Excel documentation](https://support.microsoft.com/en-us/office/excel-functions-by-category-5f91f4e9-7b42-46d2-9bd1-63f26a86c0eb).
+🚧 This function is not yet available in IronCalc.
+[Follow development here](https://github.com/ironcalc/IronCalc/labels/Functions)
 :::

docs/src/functions/date_and_time/weeknum.md

@@ -7,5 +7,6 @@ lang: en-US
 # WEEKNUM
 
 ::: warning
-🚧 This function is implemented but currently lacks detailed documentation. For guidance, you may refer to the equivalent functionality in [Microsoft Excel documentation](https://support.microsoft.com/en-us/office/excel-functions-by-category-5f91f4e9-7b42-46d2-9bd1-63f26a86c0eb).
+🚧 This function is not yet available in IronCalc.
+[Follow development here](https://github.com/ironcalc/IronCalc/labels/Functions)
 :::

docs/src/functions/date_and_time/workday.intl.md

@@ -7,5 +7,6 @@ lang: en-US
 # WORKDAY.INTL
 
 ::: warning
-🚧 This function is implemented but currently lacks detailed documentation. For guidance, you may refer to the equivalent functionality in [Microsoft Excel documentation](https://support.microsoft.com/en-us/office/excel-functions-by-category-5f91f4e9-7b42-46d2-9bd1-63f26a86c0eb).
+🚧 This function is not yet available in IronCalc.
+[Follow development here](https://github.com/ironcalc/IronCalc/labels/Functions)
 :::

docs/src/functions/date_and_time/workday.md

@@ -7,5 +7,6 @@ lang: en-US
 # WORKDAY
 
 ::: warning
-🚧 This function is implemented but currently lacks detailed documentation. For guidance, you may refer to the equivalent functionality in [Microsoft Excel documentation](https://support.microsoft.com/en-us/office/excel-functions-by-category-5f91f4e9-7b42-46d2-9bd1-63f26a86c0eb).
+🚧 This function is not yet available in IronCalc.
+[Follow development here](https://github.com/ironcalc/IronCalc/labels/Functions)
 :::

docs/src/functions/date_and_time/yearfrac.md

@@ -7,5 +7,6 @@ lang: en-US
 # YEARFRAC
 
 ::: warning
-🚧 This function is implemented but currently lacks detailed documentation. For guidance, you may refer to the equivalent functionality in [Microsoft Excel documentation](https://support.microsoft.com/en-us/office/excel-functions-by-category-5f91f4e9-7b42-46d2-9bd1-63f26a86c0eb).
+🚧 This function is not yet available in IronCalc.
+[Follow development here](https://github.com/ironcalc/IronCalc/labels/Functions)
 :::

docs/src/functions/math-and-trigonometry.md

@@ -14,10 +14,10 @@ You can track the progress in this [GitHub issue](https://github.com/ironcalc/Ir
 | ABS             | <Badge type="tip" text="Available" />          | –             |
 | ACOS            | <Badge type="tip" text="Available" />          | [ACOS](math_and_trigonometry/acos) |
 | ACOSH           | <Badge type="tip" text="Available" />          | [ACOSH](math_and_trigonometry/acosh) |
-| ACOT            | <Badge type="tip" text="Available" />          | –             |
+| ACOT            | <Badge type="info" text="Not implemented yet" /> | –             |
-| ACOTH           | <Badge type="tip" text="Available" />          | –             |
+| ACOTH           | <Badge type="info" text="Not implemented yet" /> | –             |
 | AGGREGATE       | <Badge type="info" text="Not implemented yet" /> | –             |
-| ARABIC          | <Badge type="tip" text="Available" />          | –             |
+| ARABIC          | <Badge type="info" text="Not implemented yet" /> | –             |
 | ASIN            | <Badge type="tip" text="Available" />          | [ASIN](math_and_trigonometry/asin) |
 | ASINH           | <Badge type="tip" text="Available" />          | [ASINH](math_and_trigonometry/asinh) |
 | ATAN            | <Badge type="tip" text="Available" />          | [ATAN](math_and_trigonometry/atan) |
@@ -27,64 +27,64 @@ You can track the progress in this [GitHub issue](https://github.com/ironcalc/Ir
 | CEILING         | <Badge type="info" text="Not implemented yet" /> | –             |
 | CEILING.MATH    | <Badge type="info" text="Not implemented yet" /> | –             |
 | CEILING.PRECISE | <Badge type="info" text="Not implemented yet" /> | –             |
-| COMBIN          | <Badge type="tip" text="Available" />          | –             |
+| COMBIN          | <Badge type="info" text="Not implemented yet" /> | –             |
-| COMBINA         | <Badge type="tip" text="Available" />          | –             |
+| COMBINA         | <Badge type="info" text="Not implemented yet" /> | –             |
 | COS             | <Badge type="tip" text="Available" />          | [COS](math_and_trigonometry/cos) |
 | COSH            | <Badge type="tip" text="Available" />          | [COSH](math_and_trigonometry/cosh) |
-| COT             | <Badge type="tip" text="Available" />          | –             |
+| COT             | <Badge type="info" text="Not implemented yet" /> | –             |
-| COTH            | <Badge type="tip" text="Available" />          | –             |
+| COTH            | <Badge type="info" text="Not implemented yet" /> | –             |
-| CSC             | <Badge type="tip" text="Available" />          | –             |
+| CSC             | <Badge type="info" text="Not implemented yet" /> | –             |
-| CSCH            | <Badge type="tip" text="Available" />          | –             |
+| CSCH            | <Badge type="info" text="Not implemented yet" /> | –             |
 | DECIMAL         | <Badge type="info" text="Not implemented yet" /> | –             |
-| DEGREES         | <Badge type="tip" text="Available" /> | [DEGREES](math_and_trigonometry/degrees) |
+| DEGREES         | <Badge type="info" text="Not implemented yet" /> | –             |
-| EVEN            | <Badge type="tip" text="Available" /> | [EVEN](math_and_trigonometry/even) |
+| EVEN            | <Badge type="info" text="Not implemented yet" /> | –             |
-| EXP             | <Badge type="tip" text="Available" /> | –             |
+| EXP             | <Badge type="info" text="Not implemented yet" /> | –             |
 | FACT            | <Badge type="info" text="Not implemented yet" /> | –             |
 | FACTDOUBLE      | <Badge type="info" text="Not implemented yet" /> | –             |
 | FLOOR           | <Badge type="info" text="Not implemented yet" /> | –             |
 | FLOOR.MATH      | <Badge type="info" text="Not implemented yet" /> | –             |
 | FLOOR.PRECISE   | <Badge type="info" text="Not implemented yet" /> | –             |
 | GCD             | <Badge type="info" text="Not implemented yet" /> | –             |
-| INT             | <Badge type="tip" text="Available" />          | –             |
+| INT             | <Badge type="info" text="Not implemented yet" /> | –             |
 | ISO.CEILING     | <Badge type="info" text="Not implemented yet" /> | –             |
 | LCM             | <Badge type="info" text="Not implemented yet" /> | –             |
 | LET             | <Badge type="info" text="Not implemented yet" /> | –             |
-| LN              | <Badge type="tip" text="Available" />           | –             |
+| LN              | <Badge type="info" text="Available" />           | –             |
-| LOG             | <Badge type="tip" text="Available" />           | –             |
+| LOG             | <Badge type="info" text="Available" />           | –             |
-| LOG10           | <Badge type="tip" text="Available" />           | –             |
+| LOG10           | <Badge type="info" text="Available" />           | –             |
 | MDETERM         | <Badge type="info" text="Not implemented yet" /> | –             |
 | MINVERSE        | <Badge type="info" text="Not implemented yet" /> | –             |
 | MMULT           | <Badge type="info" text="Not implemented yet" /> | –             |
-| MOD             | <Badge type="tip" text="Available" />          | [MOD](math_and_trigonometry/mod) |
+| MOD             | <Badge type="info" text="Not implemented yet" /> | –             |
-| MROUND          | <Badge type="tip" text="Available" />          | –             |
+| MROUND          | <Badge type="info" text="Not implemented yet" /> | –             |
 | MULTINOMIAL     | <Badge type="info" text="Not implemented yet" /> | –             |
 | MUNIT           | <Badge type="info" text="Not implemented yet" /> | –             |
-| ODD             | <Badge type="tip" text="Available" /> | [ODD](math_and_trigonometry/odd) |
+| ODD             | <Badge type="info" text="Not implemented yet" /> | –             |
 | PI              | <Badge type="info" text="Not implemented yet" /> | –             |
 | POWER           | <Badge type="tip" text="Available" />          | –             |
 | PRODUCT         | <Badge type="tip" text="Available" />          | –             |
-| QUOTIENT        | <Badge type="tip" text="Available" /> | [QUOTIENT](math_and_trigonometry/quotient) |
+| QUOTIENT        | <Badge type="info" text="Not implemented yet" /> | –             |
-| RADIANS         | <Badge type="tip" text="Available" /> | [RADIANS](math_and_trigonometry/radians) |
+| RADIANS         | <Badge type="info" text="Not implemented yet" /> | –             |
 | RAND            | <Badge type="tip" text="Available" />          | –             |
 | RANDARRAY       | <Badge type="info" text="Not implemented yet" /> | –             |
 | RANDBETWEEN     | <Badge type="tip" text="Available" />          | –             |
-| ROMAN           | <Badge type="tip" text="Available" />          | –             |
+| ROMAN           | <Badge type="info" text="Not implemented yet" /> | –             |
 | ROUND           | <Badge type="tip" text="Available" />          | –             |
 | ROUNDDOWN       | <Badge type="tip" text="Available" />          | –             |
 | ROUNDUP         | <Badge type="tip" text="Available" />          | –             |
-| SEC             | <Badge type="tip" text="Available" />          | –             |
+| SEC             | <Badge type="info" text="Not implemented yet" /> | –             |
-| SECH            | <Badge type="tip" text="Available" />          | –             |
+| SECH            | <Badge type="info" text="Not implemented yet" /> | –             |
 | SERIESSUM       | <Badge type="info" text="Not implemented yet" /> | –             |
 | SEQUENCE        | <Badge type="info" text="Not implemented yet" /> | –             |
-| SIGN            | <Badge type="tip" text="Available" /> | –             |
+| SIGN            | <Badge type="info" text="Not implemented yet" /> | –             |
 | SIN             | <Badge type="tip" text="Available" />          | [SIN](math_and_trigonometry/sin) |
 | SINH            | <Badge type="tip" text="Available" />          | [SINH](math_and_trigonometry/sinh) |
 | SQRT            | <Badge type="tip" text="Available" />          | –             |
-| SQRTPI          | <Badge type="tip" text="Available" />         | –             |
+| SQRTPI          | <Badge type="info" text="Available" />         | –             |
 | SUBTOTAL        | <Badge type="info" text="Not implemented yet" /> | –             |
 | SUM             | <Badge type="tip" text="Available" />          | –             |
 | SUMIF           | <Badge type="tip" text="Available" />          | –             |
-| SUMIFS          | <Badge type="tip" text="Available" />         | –             |
+| SUMIFS          | <Badge type="info" text="Available" />         | –             |
 | SUMPRODUCT      | <Badge type="info" text="Not implemented yet" /> | –             |
 | SUMSQ           | <Badge type="info" text="Not implemented yet" /> | –             |
 | SUMX2MY2        | <Badge type="info" text="Not implemented yet" /> | –             |
@@ -92,4 +92,4 @@ You can track the progress in this [GitHub issue](https://github.com/ironcalc/Ir
 | SUMXMY2         | <Badge type="info" text="Not implemented yet" /> | –             |
 | TAN             | <Badge type="tip" text="Available" />          | [TAN](math_and_trigonometry/tan) |
 | TANH            | <Badge type="tip" text="Available" />          | [TANH](math_and_trigonometry/tanh) |
-| TRUNC           | <Badge type="tip" text="Available" />          | –             |
+| TRUNC           | <Badge type="info" text="Not implemented yet" /> | –             |

docs/src/functions/math_and_trigonometry/acot.md

@@ -7,5 +7,6 @@ lang: en-US
 # ACOT
 
 ::: warning
-🚧 This function is implemented but currently lacks detailed documentation. For guidance, you may refer to the equivalent functionality in [Microsoft Excel documentation](https://support.microsoft.com/en-us/office/excel-functions-by-category-5f91f4e9-7b42-46d2-9bd1-63f26a86c0eb).
+🚧 This function is not yet available in IronCalc.
+[Follow development here](https://github.com/ironcalc/IronCalc/labels/Functions)
 :::