UPDATE: Implement Insert/Delete Cells

* FIX: Update to Rust 1.78.0

* UPDATE: Parses selected row/column/range and selected sheet

.gitignore

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

Cargo.lock

@@ -370,7 +370,6 @@ dependencies = [
  "ryu",
  "serde",
  "serde_json",
- "serde_repr",
 ]
 
 [[package]]
@@ -679,17 +678,6 @@ dependencies = [
  "serde",
 ]
 
-[[package]]
-name = "serde_repr"
-version = "0.1.18"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0b2e6b945e9d3df726b65d6ee24060aff8e3533d431f677a9695db04eff9dfdb"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
-]
-
 [[package]]
 name = "sha1"
 version = "0.10.6"

assets/icon/ironcalc_icon.svg

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

base/Cargo.toml

@@ -12,8 +12,6 @@ readme = "README.md"
 
 [dependencies]
 serde = { version = "1.0", features = ["derive"] }
-serde_json = "1.0"
-serde_repr = "0.1"
 ryu = "1.0"
 chrono = "0.4"
 chrono-tz = "0.9"
@@ -21,6 +19,9 @@ regex = "1.0"
 once_cell = "1.16.0"
 bitcode = "0.6.0"
 
+[dev-dependencies]
+serde_json = "1.0"
+
 [target.'cfg(target_arch = "wasm32")'.dependencies]
 js-sys = { version = "0.3.69" }
 

base/src/actions.rs

@@ -69,21 +69,26 @@ impl Model {
         target_row: i32,
         target_column: i32,
     ) -> Result<(), String> {
-        let source_cell = self
+        if let Some(source_cell) = self
             .workbook
             .worksheet(sheet)?
             .cell(source_row, source_column)
-            .ok_or("Expected Cell to exist")?;
+        {
             let style = source_cell.get_style();
             // FIXME: we need some user_input getter instead of get_text
             let formula_or_value = self
                 .get_cell_formula(sheet, source_row, source_column)?
-            .unwrap_or_else(|| source_cell.get_text(&self.workbook.shared_strings, &self.language));
+                .unwrap_or_else(|| {
+                    source_cell.get_text(&self.workbook.shared_strings, &self.language)
+                });
             self.set_user_input(sheet, target_row, target_column, formula_or_value);
             self.workbook
                 .worksheet_mut(sheet)?
                 .set_cell_style(target_row, target_column, style);
             self.cell_clear_all(sheet, source_row, source_column)?;
+        } else {
+            self.cell_clear_all(sheet, target_row, target_column)?;
+        }
         Ok(())
     }
 
@@ -106,7 +111,7 @@ impl Model {
             return Err("Cannot add a negative number of cells :)".to_string());
         }
         // check if it is possible:
-        let dimensions = self.workbook.worksheet(sheet)?.dimension();
+        let dimensions = self.workbook.worksheet(sheet)?.get_dimension();
         let last_column = dimensions.max_column + column_count;
         if last_column > LAST_COLUMN {
             return Err(
@@ -263,7 +268,7 @@ impl Model {
             return Err("Cannot add a negative number of cells :)".to_string());
         }
         // Check if it is possible:
-        let dimensions = self.workbook.worksheet(sheet)?.dimension();
+        let dimensions = self.workbook.worksheet(sheet)?.get_dimension();
         let last_row = dimensions.max_row + row_count;
         if last_row > LAST_ROW {
             return Err(
@@ -367,13 +372,162 @@ impl Model {
             }
         }
         self.workbook.worksheets[sheet as usize].rows = new_rows;
-        self.displace_cells(
-            &(DisplaceData::Row {
+        self.displace_cells(&DisplaceData::Row {
             sheet,
             row,
             delta: -row_count,
-            }),
-        );
+        });
+        Ok(())
+    }
+
+    pub fn delete_cells_and_shift_left(
+        &mut self,
+        sheet: u32,
+        row: i32,
+        column: i32,
+        row_delta: i32,
+        column_delta: i32,
+    ) -> Result<(), String> {
+        let worksheet = &mut self.workbook.worksheet_mut(sheet)?;
+        let max_column = worksheet.get_dimension().max_column;
+
+        // Delete all cells in the range
+        for r in row..row + row_delta {
+            for c in column..column + column_delta {
+                self.cell_clear_all(sheet, r, c)?;
+            }
+        }
+
+        // Move all cells in the range
+        for r in row..row + row_delta {
+            for c in column + 1..max_column + 1 {
+                println!("{r}-{c}");
+                self.move_cell(sheet, r, c, r, c - column_delta)?;
+            }
+        }
+
+        // Update all formulas in the workbook
+        self.displace_cells(&DisplaceData::ShiftCellsRight {
+            sheet,
+            row,
+            column,
+            column_delta: -column_delta,
+            row_delta,
+        });
+
+        Ok(())
+    }
+
+    /// Insert cells and shift right
+    pub fn insert_cells_and_shift_right(
+        &mut self,
+        sheet: u32,
+        row: i32,
+        column: i32,
+        row_delta: i32,
+        column_delta: i32,
+    ) -> Result<(), String> {
+        let worksheet = &mut self.workbook.worksheet_mut(sheet)?;
+        let max_column = worksheet.get_dimension().max_column;
+
+        // Move all cells in the range
+        for r in row..row + row_delta {
+            for c in (column..max_column + 1).rev() {
+                self.move_cell(sheet, r, c, r, c + column_delta)?;
+            }
+        }
+
+        // Delete all cells in the range
+        for r in row..row + row_delta {
+            for c in column..column + column_delta {
+                self.cell_clear_all(sheet, r, c)?;
+            }
+        }
+
+        // Update all formulas in the workbook
+        self.displace_cells(&DisplaceData::ShiftCellsRight {
+            sheet,
+            row,
+            column,
+            column_delta,
+            row_delta,
+        });
+
+        Ok(())
+    }
+
+    /// Insert cells and shift down
+    pub fn insert_cells_and_shift_down(
+        &mut self,
+        sheet: u32,
+        row: i32,
+        column: i32,
+        row_delta: i32,
+        column_delta: i32,
+    ) -> Result<(), String> {
+        let worksheet = &mut self.workbook.worksheet_mut(sheet)?;
+        let max_row = worksheet.get_dimension().max_row;
+
+        // Move all cells in the range
+        for r in (row..row + max_row + 1).rev() {
+            for c in column..column + column_delta {
+                self.move_cell(sheet, r, c, r, c + column_delta)?;
+            }
+        }
+
+        // Delete all cells in the range
+        for r in row..row + row_delta {
+            for c in column..column + column_delta {
+                self.cell_clear_all(sheet, r, c)?;
+            }
+        }
+
+        // Update all formulas in the workbook
+        self.displace_cells(&DisplaceData::ShiftCellsDown {
+            sheet,
+            row,
+            column,
+            column_delta,
+            row_delta,
+        });
+
+        Ok(())
+    }
+
+    pub fn delete_cells_and_shift_up(
+        &mut self,
+        sheet: u32,
+        row: i32,
+        column: i32,
+        row_delta: i32,
+        column_delta: i32,
+    ) -> Result<(), String> {
+        let worksheet = &mut self.workbook.worksheet_mut(sheet)?;
+        let max_row = worksheet.get_dimension().max_row;
+
+        // Delete all cells in the range
+        for r in row..row + row_delta {
+            for c in column..column + column_delta {
+                self.cell_clear_all(sheet, r, c)?;
+            }
+        }
+
+        // Move all cells in the range
+        for r in row..max_row + 1 {
+            for c in column + 1..column + column_delta {
+                self.move_cell(sheet, r, c, r - row_delta, c)?;
+            }
+        }
+
+        // Update all formulas in the workbook
+        self.displace_cells(&DisplaceData::ShiftCellsDown {
+            sheet,
+            row,
+            column,
+            column_delta,
+            row_delta: -row_delta,
+        });
+
         Ok(())
     }
 

base/src/cell.rs

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

base/src/expressions/lexer/marked_token.rs

@@ -1,3 +1,5 @@
+#![deny(missing_docs)]
+
 use serde::{Deserialize, Serialize};
 
 use crate::expressions::token;
@@ -9,8 +11,11 @@ use super::{Lexer, LexerMode};
 /// A MarkedToken is a token together with its position on a formula
 #[derive(Debug, PartialEq, Serialize, Deserialize)]
 pub struct MarkedToken {
+    /// Token type (see [token::TokenType])
     pub token: token::TokenType,
+    /// Position of the start of the token (in bytes)
     pub start: i32,
+    /// Position of the end of the token (in bytes)
     pub end: i32,
 }
 
@@ -19,7 +24,7 @@ pub struct MarkedToken {
 /// # Examples
 /// ```
 /// use ironcalc_base::expressions::{
-///      lexer::util::{get_tokens, MarkedToken},
+///      lexer::marked_token::{get_tokens, MarkedToken},
 ///      token::{OpSum, TokenType},
 /// };
 ///

base/src/expressions/lexer/mod.rs

@@ -1,3 +1,5 @@
+#![deny(missing_docs)]
+
 //! A tokenizer for spreadsheet formulas.
 //!
 //! This is meant to feed a formula parser.
@@ -7,8 +9,10 @@
 //! It supports two working modes:
 //!
 //! 1. A1 or display mode
+//!
 //!    This is for user formulas. References are like `D4`, `D$4` or `F5:T10`
 //! 2. R1C1, internal or runtime mode
+//!
 //!    A reference like R1C1 refers to $A$1 and R3C4 to $D$4
 //!    R[2]C[5] refers to a cell two rows below and five columns to the right
 //!    It uses the 'en' locale and language.
@@ -55,7 +59,8 @@ use super::token::{Error, TokenType};
 use super::types::*;
 use super::utils;
 
-pub mod util;
+/// Returns an iterator over tokens together with their position in the byte string.
+pub mod marked_token;
 
 #[cfg(test)]
 mod test;
@@ -63,17 +68,28 @@ mod test;
 mod ranges;
 mod structured_references;
 
+/// This is the TokenType we return if we cannot recognize a token
 #[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
 pub struct LexerError {
+    /// Position of the beginning of the token in the byte string.
     pub position: usize,
+    /// Message describing what we think the error is.
     pub message: String,
 }
 
 pub(super) type Result<T> = std::result::Result<T, LexerError>;
 
+/// Whether we try to parse formulas in A1 mode or in the internal R1C1 mode
 #[derive(Clone, PartialEq, Eq)]
 pub enum LexerMode {
+    /// Cell references are written `=S34`. This is the display mode
     A1,
+    ///    R1C1, internal or runtime mode
+    ///
+    ///    A reference like R1C1 refers to $A$1 and R3C4 to $D$4
+    ///    R[2]C[5] refers to a cell two rows below and five columns to the right
+    ///    It uses the 'en' locale and language.
+    ///    This is used internally at runtime.
     R1C1,
 }
 
@@ -308,9 +324,9 @@ impl Lexer {
                                 return self.consume_range(None);
                             }
                             let name_upper = name.to_ascii_uppercase();
-                            if name_upper == self.language.booleans.true_value {
+                            if name_upper == self.language.booleans.r#true {
                                 return TokenType::Boolean(true);
-                            } else if name_upper == self.language.booleans.false_value {
+                            } else if name_upper == self.language.booleans.r#false {
                                 return TokenType::Boolean(false);
                             }
                             if self.mode == LexerMode::A1 {
@@ -660,8 +676,8 @@ impl Lexer {
     fn consume_error(&mut self) -> TokenType {
         let errors = &self.language.errors;
         let rest_of_formula: String = self.chars[self.position - 1..self.len].iter().collect();
-        if rest_of_formula.starts_with(&errors.ref_value) {
-            self.position += errors.ref_value.chars().count() - 1;
+        if rest_of_formula.starts_with(&errors.r#ref) {
+            self.position += errors.r#ref.chars().count() - 1;
             return TokenType::Error(Error::REF);
         } else if rest_of_formula.starts_with(&errors.name) {
             self.position += errors.name.chars().count() - 1;

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

@@ -1,6 +1,6 @@
 mod test_common;
 mod test_language;
 mod test_locale;
+mod test_marked_token;
 mod test_ranges;
 mod test_tables;
-mod test_util;

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

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

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

@@ -1,5 +1,5 @@
 use crate::expressions::{
-    lexer::util::get_tokens,
+    lexer::marked_token::{get_tokens, MarkedToken},
     token::{OpCompare, OpSum, TokenType},
 };
 
@@ -22,6 +22,29 @@ fn test_get_tokens() {
     assert_eq!(l.end, 10);
 }
 
+#[test]
+fn chinese_characters() {
+    let formula = "\"你好\" & \"世界！\"";
+    let marked_tokens = get_tokens(formula);
+    assert_eq!(marked_tokens.len(), 3);
+    let first_t = MarkedToken {
+        token: TokenType::String("你好".to_string()),
+        start: 0,
+        end: 4,
+    };
+    let second_t = MarkedToken {
+        token: TokenType::And,
+        start: 4,
+        end: 6,
+    };
+    let third_t = MarkedToken {
+        token: TokenType::String("世界！".to_string()),
+        start: 6,
+        end: 12,
+    };
+    assert_eq!(marked_tokens, vec![first_t, second_t, third_t]);
+}
+
 #[test]
 fn test_simple_tokens() {
     assert_eq!(

base/src/expressions/mod.rs

@@ -1,4 +1,3 @@
-// public modules
 pub mod lexer;
 pub mod parser;
 pub mod token;

base/src/expressions/parser/mod.rs

@@ -1,31 +1,29 @@
-/*!
-# GRAMAR
-
-<pre class="rust">
-opComp   => '=' | '<' | '>' | '<=' } '>=' | '<>'
-opFactor => '*' | '/'
-unaryOp  => '-' | '+'
-
-expr    => concat (opComp concat)*
-concat  => term ('&' term)*
-term    => factor (opFactor factor)*
-factor  => prod (opProd prod)*
-prod    => power ('^' power)*
-power   => (unaryOp)* range '%'*
-range   => primary (':' primary)?
-primary => '(' expr ')'
-        => number
-        => function '(' f_args ')'
-        => name
-        => string
-        => '{' a_args '}'
-        => bool
-        => bool()
-        => error
-
-f_args  => e (',' e)*
-</pre>
-*/
+//! # GRAMMAR
+//!
+//! <pre class="rust">
+//! opComp   => '=' | '<' | '>' | '<=' } '>=' | '<>'
+//! opFactor => '*' | '/'
+//! unaryOp  => '-' | '+'
+//!
+//! expr    => concat (opComp concat)*
+//! concat  => term ('&' term)*
+//! term    => factor (opFactor factor)*
+//! factor  => prod (opProd prod)*
+//! prod    => power ('^' power)*
+//! power   => (unaryOp)* range '%'*
+//! range   => primary (':' primary)?
+//! primary => '(' expr ')'
+//!         => number
+//!         => function '(' f_args ')'
+//!         => name
+//!         => string
+//!         => '{' a_args '}'
+//!         => bool
+//!         => bool()
+//!         => error
+//!
+//! f_args  => e (',' e)*
+//! </pre>
 
 use std::collections::HashMap;
 
@@ -44,21 +42,15 @@ use super::utils::number_to_column;
 
 use token::OpCompare;
 
-pub mod move_formula;
+pub(crate) mod move_formula;
+pub(crate) mod walk;
+
+/// Produces a string representation of a formula from the AST.
 pub mod stringify;
-pub mod walk;
 
 #[cfg(test)]
 mod test;
 
-#[cfg(test)]
-mod test_ranges;
-
-#[cfg(test)]
-mod test_move_formula;
-#[cfg(test)]
-mod test_tables;
-
 pub(crate) fn parse_range(formula: &str) -> Result<(i32, i32, i32, i32), String> {
     let mut lexer = lexer::Lexer::new(
         formula,
@@ -222,7 +214,7 @@ impl Parser {
 
     pub fn parse(&mut self, formula: &str, context: &Option<CellReferenceRC>) -> Node {
         self.lexer.set_formula(formula);
-        self.context = context.clone();
+        self.context.clone_from(context);
         self.parse_expr()
     }
 

base/src/expressions/parser/stringify.rs

@@ -1,43 +1,75 @@
+#![deny(missing_docs)]
+
 use super::{super::utils::quote_name, Node, Reference};
 use crate::constants::{LAST_COLUMN, LAST_ROW};
 use crate::expressions::token::OpUnary;
 use crate::{expressions::types::CellReferenceRC, number_format::to_excel_precision_str};
 
+/// Displaced data
 pub enum DisplaceData {
+    /// Displaces columns (inserting or deleting columns)
     Column {
+        /// Sheet in which the displace data applies
         sheet: u32,
+        /// Column from which the data is displaced
         column: i32,
+        /// Number of columns displaced (might be negative, e.g. when deleting columns)
         delta: i32,
     },
+    /// Displaces rows (Inserting or deleting rows)
     Row {
+        /// Sheet in which the displace data applies
         sheet: u32,
+        /// Row from which the data is displaced
         row: i32,
+        /// Number of rows displaced (might be negative, e.g. when deleting rows)
         delta: i32,
     },
-    CellHorizontal {
+    /// Displaces cells horizontally
+    ShiftCellsRight {
+        /// Sheet in which the displace data applies
         sheet: u32,
+        /// Row of the to left corner
         row: i32,
+        /// Column of the top left corner
         column: i32,
-        delta: i32,
+        /// Number of rows to be displaced
+        row_delta: i32,
+        /// Number of columns to be displaced (might be negative)
+        column_delta: i32,
     },
-    CellVertical {
+    /// Displaces cells vertically
+    ShiftCellsDown {
+        /// Sheet in which the displace data applies
         sheet: u32,
+        /// Row of the to left corner
         row: i32,
+        /// Column of the top left corner
         column: i32,
-        delta: i32,
+        /// Number of rows displaced (might be negative)
+        row_delta: i32,
+        /// Number of columns to be displaced
+        column_delta: i32,
     },
+    /// Displaces data due to a column move from column to column + delta
     ColumnMove {
+        /// Sheet in which the displace data applies
         sheet: u32,
+        /// Column that is moved
         column: i32,
+        /// The position of the new column is column + delta (might be negative)
         delta: i32,
     },
+    /// Doesn't do any cell displacement
     None,
 }
 
+/// Stringifies the AST formula in its internal R1C1 format
 pub fn to_rc_format(node: &Node) -> String {
     stringify(node, None, &DisplaceData::None, false)
 }
 
+/// Stringifies the formula applying the _displace_data_.
 pub fn to_string_displaced(
     node: &Node,
     context: &CellReferenceRC,
@@ -46,10 +78,12 @@ pub fn to_string_displaced(
     stringify(node, Some(context), displace_data, false)
 }
 
+/// Stringifies a formula from the AST
 pub fn to_string(node: &Node, context: &CellReferenceRC) -> String {
     stringify(node, Some(context), &DisplaceData::None, false)
 }
 
+/// Stringifies the formula for Excel compatibility
 pub fn to_excel_string(node: &Node, context: &CellReferenceRC) -> String {
     stringify(node, Some(context), &DisplaceData::None, true)
 }
@@ -116,41 +150,49 @@ pub(crate) fn stringify_reference(
                         }
                     }
                 }
-                DisplaceData::CellHorizontal {
+                DisplaceData::ShiftCellsRight {
                     sheet,
                     row: displace_row,
                     column: displace_column,
-                    delta,
+                    column_delta,
+                    row_delta,
                 } => {
-                    if sheet_index == *sheet && displace_row == &row {
-                        if *delta < 0 {
+                    if sheet_index == *sheet
+                        && displace_row >= &row
+                        && *displace_row < row + *row_delta
+                    {
+                        if *column_delta < 0 {
                             if &column >= displace_column {
-                                if column < displace_column - *delta {
+                                if column < displace_column - *column_delta {
                                     return "#REF!".to_string();
                                 }
-                                column += *delta;
+                                column += *column_delta;
                             }
                         } else if &column >= displace_column {
-                            column += *delta;
+                            column += *column_delta;
                         }
                     }
                 }
-                DisplaceData::CellVertical {
+                DisplaceData::ShiftCellsDown {
                     sheet,
                     row: displace_row,
                     column: displace_column,
-                    delta,
+                    row_delta,
+                    column_delta,
                 } => {
-                    if sheet_index == *sheet && displace_column == &column {
-                        if *delta < 0 {
+                    if sheet_index == *sheet
+                        && displace_column >= &column
+                        && *displace_column < column + *column_delta
+                    {
+                        if *row_delta < 0 {
                             if &row >= displace_row {
-                                if row < displace_row - *delta {
+                                if row < displace_row - *row_delta {
                                     return "#REF!".to_string();
                                 }
-                                row += *delta;
+                                row += *row_delta;
                             }
                         } else if &row >= displace_row {
-                            row += *delta;
+                            row += *row_delta;
                         }
                     }
                 }

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

@@ -0,0 +1,4 @@
+mod test_genertal;
+mod test_move_formula;
+mod test_ranges;
+mod test_tables;

base/src/expressions/parser/test/test_genertal.rs

@@ -1,17 +1,12 @@
 use std::collections::HashMap;
 
 use crate::expressions::lexer::LexerMode;
-use crate::expressions::parser::stringify::DisplaceData;
-
-use super::super::types::CellReferenceRC;
-use super::Parser;
-use super::{
-    super::parser::{
+use crate::expressions::parser::stringify::{to_string_displaced, DisplaceData};
+use crate::expressions::parser::{
     stringify::{to_rc_format, to_string},
-        Node,
-    },
-    stringify::to_string_displaced,
+    Node, Parser,
 };
+use crate::expressions::types::CellReferenceRC;
 
 struct Formula<'a> {
     initial: &'a str,

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

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

base/src/expressions/parser/test/test_ranges.rs

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

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

@@ -6,8 +6,8 @@ use crate::expressions::parser::stringify::to_string;
 use crate::expressions::utils::{number_to_column, parse_reference_a1};
 use crate::types::{Table, TableColumn, TableStyleInfo};
 
-use super::super::types::CellReferenceRC;
-use super::Parser;
+use crate::expressions::parser::Parser;
+use crate::expressions::types::CellReferenceRC;
 
 fn create_test_table(
     table_name: &str,

base/src/expressions/token.rs

@@ -2,7 +2,6 @@ use std::fmt;
 
 use bitcode::{Decode, Encode};
 use serde::{Deserialize, Serialize};
-use serde_repr::{Deserialize_repr, Serialize_repr};
 
 use crate::language::Language;
 
@@ -81,8 +80,7 @@ impl fmt::Display for OpProduct {
 ///  * "#ERROR!" means there was an error processing the formula (for instance "=A1+")
 ///  * "#N/IMPL!" means the formula or feature in Excel but has not been implemented in IronCalc
 /// Note that they are serialized/deserialized by index
-#[derive(Serialize_repr, Deserialize_repr, Encode, Decode, Debug, PartialEq, Eq, Clone)]
-#[repr(u8)]
+#[derive(Serialize, Deserialize, Encode, Decode, Debug, PartialEq, Eq, Clone)]
 pub enum Error {
     REF,
     NAME,
@@ -120,7 +118,7 @@ impl Error {
     pub fn to_localized_error_string(&self, language: &Language) -> String {
         match self {
             Error::NULL => language.errors.null.to_string(),
-            Error::REF => language.errors.ref_value.to_string(),
+            Error::REF => language.errors.r#ref.to_string(),
             Error::NAME => language.errors.name.to_string(),
             Error::VALUE => language.errors.value.to_string(),
             Error::DIV => language.errors.div.to_string(),
@@ -137,7 +135,7 @@ impl Error {
 
 pub fn get_error_by_name(name: &str, language: &Language) -> Option<Error> {
     let errors = &language.errors;
-    if name == errors.ref_value {
+    if name == errors.r#ref {
         return Some(Error::REF);
     } else if name == errors.name {
         return Some(Error::NAME);

base/src/functions/engineering/complex.rs

@@ -3,7 +3,7 @@ use std::fmt;
 use crate::{
     calc_result::CalcResult,
     expressions::{
-        lexer::util::get_tokens,
+        lexer::marked_token::get_tokens,
         parser::Node,
         token::{Error, OpSum, TokenType},
         types::CellReferenceIndex,

base/src/functions/financial.rs

@@ -221,7 +221,7 @@ impl Model {
                         .workbook
                         .worksheet(left.sheet)
                         .expect("Sheet expected during evaluation.")
-                        .dimension()
+                        .get_dimension()
                         .max_row;
                 }
                 if column1 == 1 && column2 == LAST_COLUMN {
@@ -229,7 +229,7 @@ impl Model {
                         .workbook
                         .worksheet(left.sheet)
                         .expect("Sheet expected during evaluation.")
-                        .dimension()
+                        .get_dimension()
                         .max_column;
                 }
                 for row in row1..row2 + 1 {
@@ -284,7 +284,7 @@ impl Model {
                         .workbook
                         .worksheet(left.sheet)
                         .expect("Sheet expected during evaluation.")
-                        .dimension()
+                        .get_dimension()
                         .max_row;
                 }
                 if column1 == 1 && column2 == LAST_COLUMN {
@@ -292,7 +292,7 @@ impl Model {
                         .workbook
                         .worksheet(left.sheet)
                         .expect("Sheet expected during evaluation.")
-                        .dimension()
+                        .get_dimension()
                         .max_column;
                 }
                 for row in row1..row2 + 1 {
@@ -360,7 +360,7 @@ impl Model {
                         .workbook
                         .worksheet(left.sheet)
                         .expect("Sheet expected during evaluation.")
-                        .dimension()
+                        .get_dimension()
                         .max_row;
                 }
                 if column1 == 1 && column2 == LAST_COLUMN {
@@ -368,7 +368,7 @@ impl Model {
                         .workbook
                         .worksheet(left.sheet)
                         .expect("Sheet expected during evaluation.")
-                        .dimension()
+                        .get_dimension()
                         .max_column;
                 }
                 for row in row1..row2 + 1 {
@@ -866,7 +866,7 @@ impl Model {
                             .workbook
                             .worksheet(left.sheet)
                             .expect("Sheet expected during evaluation.")
-                            .dimension()
+                            .get_dimension()
                             .max_row;
                     }
                     if column1 == 1 && column2 == LAST_COLUMN {
@@ -874,7 +874,7 @@ impl Model {
                             .workbook
                             .worksheet(left.sheet)
                             .expect("Sheet expected during evaluation.")
-                            .dimension()
+                            .get_dimension()
                             .max_column;
                     }
                     for row in row1..row2 + 1 {

base/src/functions/mathematical.rs

@@ -132,7 +132,7 @@ impl Model {
                             .workbook
                             .worksheet(left.sheet)
                             .expect("Sheet expected during evaluation.")
-                            .dimension()
+                            .get_dimension()
                             .max_row;
                     }
                     if column1 == 1 && column2 == LAST_COLUMN {
@@ -140,7 +140,7 @@ impl Model {
                             .workbook
                             .worksheet(left.sheet)
                             .expect("Sheet expected during evaluation.")
-                            .dimension()
+                            .get_dimension()
                             .max_column;
                     }
                     for row in row1..row2 + 1 {
@@ -199,7 +199,7 @@ impl Model {
                             .workbook
                             .worksheet(left.sheet)
                             .expect("Sheet expected during evaluation.")
-                            .dimension()
+                            .get_dimension()
                             .max_row;
                     }
                     if column1 == 1 && column2 == LAST_COLUMN {
@@ -207,7 +207,7 @@ impl Model {
                             .workbook
                             .worksheet(left.sheet)
                             .expect("Sheet expected during evaluation.")
-                            .dimension()
+                            .get_dimension()
                             .max_column;
                     }
                     for row in row1..row2 + 1 {

base/src/functions/statistical.rs

@@ -385,7 +385,7 @@ impl Model {
             .workbook
             .worksheet(first_range.left.sheet)
             .expect("Sheet expected during evaluation.")
-            .dimension();
+            .get_dimension();
         let max_row = dimension.max_row;
         let max_column = dimension.max_column;
 
@@ -530,7 +530,7 @@ impl Model {
                 .workbook
                 .worksheet(sum_range.left.sheet)
                 .expect("Sheet expected during evaluation.")
-                .dimension()
+                .get_dimension()
                 .max_row;
         }
         if left_column == 1 && right_column == LAST_COLUMN {
@@ -538,7 +538,7 @@ impl Model {
                 .workbook
                 .worksheet(sum_range.left.sheet)
                 .expect("Sheet expected during evaluation.")
-                .dimension()
+                .get_dimension()
                 .max_column;
         }
 

base/src/functions/text.rs

@@ -892,7 +892,7 @@ impl Model {
                             .workbook
                             .worksheet(left.sheet)
                             .expect("Sheet expected during evaluation.")
-                            .dimension()
+                            .get_dimension()
                             .max_row;
                     }
                     if column1 == 1 && column2 == LAST_COLUMN {
@@ -900,7 +900,7 @@ impl Model {
                             .workbook
                             .worksheet(left.sheet)
                             .expect("Sheet expected during evaluation.")
-                            .dimension()
+                            .get_dimension()
                             .max_column;
                     }
                     for row in row1..row2 + 1 {

base/src/functions/xlookup.rs

@@ -255,7 +255,7 @@ impl Model {
                                 .workbook
                                 .worksheet(left.sheet)
                                 .expect("Sheet expected during evaluation.")
-                                .dimension()
+                                .get_dimension()
                                 .max_row;
                         }
                         if column1 == 1 && column2 == LAST_COLUMN {
@@ -263,7 +263,7 @@ impl Model {
                                 .workbook
                                 .worksheet(left.sheet)
                                 .expect("Sheet expected during evaluation.")
-                                .dimension()
+                                .get_dimension()
                                 .max_column;
                         }
                         let left = CellReferenceIndex {

base/src/language/language.bin

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

base/src/language/mod.rs

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

base/src/locale/mod.rs

@@ -1,32 +1,29 @@
+use bitcode::{Decode, Encode};
 use once_cell::sync::Lazy;
-use serde::{Deserialize, Serialize};
 
 use std::collections::HashMap;
 
-#[derive(Serialize, Deserialize, Clone)]
+#[derive(Encode, Decode, Clone)]
 pub struct Locale {
     pub dates: Dates,
     pub numbers: NumbersProperties,
     pub currency: Currency,
 }
 
-#[derive(Serialize, Deserialize, Clone)]
+#[derive(Encode, Decode, Clone)]
 pub struct Currency {
     pub iso: String,
     pub symbol: String,
 }
 
-#[derive(Serialize, Deserialize, Clone)]
+#[derive(Encode, Decode, Clone)]
 pub struct NumbersProperties {
-    #[serde(rename = "symbols-numberSystem-latn")]
     pub symbols: NumbersSymbols,
-    #[serde(rename = "decimalFormats-numberSystem-latn")]
     pub decimal_formats: DecimalFormats,
-    #[serde(rename = "currencyFormats-numberSystem-latn")]
     pub currency_formats: CurrencyFormats,
 }
 
-#[derive(Serialize, Deserialize, Clone)]
+#[derive(Encode, Decode, Clone)]
 pub struct Dates {
     pub day_names: Vec<String>,
     pub day_names_short: Vec<String>,
@@ -35,8 +32,7 @@ pub struct Dates {
     pub months_letter: Vec<String>,
 }
 
-#[derive(Serialize, Deserialize, Clone)]
-#[serde(rename_all = "camelCase")]
+#[derive(Encode, Decode, Clone)]
 pub struct NumbersSymbols {
     pub decimal: String,
     pub group: String,
@@ -54,40 +50,26 @@ pub struct NumbersSymbols {
 }
 
 // See: https://cldr.unicode.org/translation/number-currency-formats/number-and-currency-patterns
-#[derive(Serialize, Deserialize, Clone)]
+#[derive(Encode, Decode, Clone)]
 pub struct CurrencyFormats {
     pub standard: String,
-    #[serde(rename = "standard-alphaNextToNumber")]
-    #[serde(skip_serializing_if = "Option::is_none")]
     pub standard_alpha_next_to_number: Option<String>,
-    #[serde(rename = "standard-noCurrency")]
     pub standard_no_currency: String,
     pub accounting: String,
-    #[serde(rename = "accounting-alphaNextToNumber")]
-    #[serde(skip_serializing_if = "Option::is_none")]
     pub accounting_alpha_next_to_number: Option<String>,
-    #[serde(rename = "accounting-noCurrency")]
     pub accounting_no_currency: String,
 }
 
-#[derive(Serialize, Deserialize, Clone)]
-#[serde(rename_all = "camelCase")]
+#[derive(Encode, Decode, Clone)]
 pub struct DecimalFormats {
     pub standard: String,
 }
 
-static LOCALES: Lazy<HashMap<String, Locale>> = Lazy::new(|| {
-    serde_json::from_str(include_str!("locales.json")).expect("Failed parsing locale")
-});
+static LOCALES: Lazy<HashMap<String, Locale>> =
+    Lazy::new(|| bitcode::decode(include_bytes!("locales.bin")).expect("Failed parsing locale"));
 
-pub fn get_locale(_id: &str) -> Result<&Locale, String> {
+pub fn get_locale(id: &str) -> Result<&Locale, String> {
     // TODO: pass the locale once we implement locales in Rust
-    let locale = LOCALES.get("en").ok_or("Invalid locale")?;
-    Ok(locale)
-}
-
-// TODO: Remove this function one we implement locales properly
-pub fn get_locale_fix(id: &str) -> Result<&Locale, String> {
     let locale = LOCALES.get(id).ok_or("Invalid locale")?;
     Ok(locale)
 }

base/src/model.rs

@@ -798,7 +798,7 @@ impl Model {
         None
     }
 
-    /// Returns a model from a String representation of a workbook
+    /// Returns a model from an internal binary representation of a workbook
     ///
     /// # Examples
     ///
@@ -816,9 +816,12 @@ impl Model {
     /// # Ok(())
     /// # }
     /// ```
+    ///
+    /// See also:
+    /// * [Model::to_bytes]
     pub fn from_bytes(s: &[u8]) -> Result<Model, String> {
         let workbook: Workbook =
-            bitcode::decode(s).map_err(|_| "Error parsing workbook".to_string())?;
+            bitcode::decode(s).map_err(|e| format!("Error parsing workbook: {e}"))?;
         Model::from_workbook(workbook)
     }
 
@@ -1760,7 +1763,10 @@ impl Model {
             .get_style(self.get_cell_style_index(sheet, row, column))
     }
 
-    /// Returns a JSON string of the workbook
+    /// Returns an internal binary representation of the workbook
+    ///
+    /// See also:
+    /// * [Model::from_bytes]
     pub fn to_bytes(&self) -> Vec<u8> {
         bitcode::encode(&self.workbook)
     }
@@ -1782,7 +1788,7 @@ impl Model {
     /// Returns markup representation of the given `sheet`.
     pub fn get_sheet_markup(&self, sheet: u32) -> Result<String, String> {
         let worksheet = self.workbook.worksheet(sheet)?;
-        let dimension = worksheet.dimension();
+        let dimension = worksheet.get_dimension();
 
         let mut rows = Vec::new();
 

base/src/new_empty.rs

@@ -6,14 +6,16 @@ use crate::{
     calc_result::Range,
     expressions::{
         lexer::LexerMode,
-        parser::stringify::{rename_sheet_in_node, to_rc_format},
-        parser::Parser,
+        parser::{
+            stringify::{rename_sheet_in_node, to_rc_format},
+            Parser,
+        },
         types::CellReferenceRC,
     },
     language::get_language,
     locale::get_locale,
     model::{get_milliseconds_since_epoch, Model, ParsedDefinedName},
-    types::{Metadata, SheetState, Workbook, WorkbookSettings, Worksheet},
+    types::{Metadata, Selection, SheetState, Workbook, WorkbookSettings, Worksheet},
     utils::ParsedReference,
 };
 
@@ -48,6 +50,12 @@ impl Model {
             color: Default::default(),
             frozen_columns: 0,
             frozen_rows: 0,
+            selection: Selection {
+                is_selected: false,
+                row: 1,
+                column: 1,
+                range: [1, 1, 1, 1],
+            },
         }
     }
 

base/src/test/functions/mod.rs

@@ -0,0 +1,18 @@
+mod test_fn_average;
+mod test_fn_averageifs;
+mod test_fn_choose;
+mod test_fn_concatenate;
+mod test_fn_count;
+mod test_fn_exact;
+mod test_fn_financial;
+mod test_fn_if;
+mod test_fn_maxifs;
+mod test_fn_minifs;
+mod test_fn_offset;
+mod test_fn_product;
+mod test_fn_rept;
+mod test_fn_sum;
+mod test_fn_sumifs;
+mod test_fn_textbefore;
+mod test_fn_textjoin;
+mod test_fn_type;

base/src/test/mod.rs

@@ -1,3 +1,5 @@
+mod engineering;
+mod functions;
 mod test_actions;
 mod test_binary_search;
 mod test_cell;
@@ -8,49 +10,30 @@ mod test_criteria;
 mod test_currency;
 mod test_date_and_time;
 mod test_error_propagation;
-mod test_fn_average;
-mod test_fn_averageifs;
-mod test_fn_choose;
-mod test_fn_concatenate;
-mod test_fn_count;
-mod test_fn_exact;
-mod test_fn_financial;
-mod test_fn_if;
-mod test_fn_maxifs;
-mod test_fn_minifs;
-mod test_fn_product;
-mod test_fn_rept;
-mod test_fn_sum;
-mod test_fn_sumifs;
-mod test_fn_textbefore;
-mod test_fn_textjoin;
+mod test_escape_quotes;
+mod test_extend;
 mod test_forward_references;
+mod test_frozen_rows_and_columns;
 mod test_frozen_rows_columns;
 mod test_general;
+mod test_get_cell_content;
 mod test_math;
 mod test_metadata;
 mod test_model_cell_clear_all;
 mod test_model_is_empty_cell;
 mod test_move_formula;
+mod test_number_format;
+mod test_percentage;
 mod test_quote_prefix;
 mod test_set_user_input;
 mod test_sheet_markup;
 mod test_sheets;
+mod test_shift_cells;
 mod test_styles;
+mod test_today;
 mod test_trigonometric;
+mod test_types;
 mod test_workbook;
 mod test_worksheet;
-pub(crate) mod util;
-
-mod engineering;
-mod test_fn_offset;
-mod test_number_format;
-
-mod test_escape_quotes;
-mod test_extend;
-mod test_fn_type;
-mod test_frozen_rows_and_columns;
-mod test_get_cell_content;
-mod test_percentage;
-mod test_today;
 mod user_model;
+pub(crate) mod util;

base/src/test/test_shift_cells.rs

@@ -0,0 +1,110 @@
+#![allow(clippy::unwrap_used)]
+
+use crate::test::util::new_empty_model;
+
+#[test]
+fn shift_cells_right() {
+    let mut model = new_empty_model();
+    let (sheet, row, column) = (0, 5, 3); // C5
+    model.set_user_input(sheet, row, column, "Hi".to_string());
+    model.set_user_input(sheet, row, column + 1, "world".to_string());
+    model.set_user_input(sheet, row, column + 2, "!".to_string());
+
+    model
+        .insert_cells_and_shift_right(sheet, row, column, 1, 1)
+        .unwrap();
+    model.evaluate();
+
+    assert_eq!(model.get_cell_content(0, 5, 3), Ok("".to_string()));
+    assert_eq!(model.get_cell_content(0, 5, 4), Ok("Hi".to_string()));
+}
+
+#[test]
+fn shift_cells_right_with_formulas() {
+    let mut model = new_empty_model();
+    let (sheet, row, column) = (0, 5, 3); // C5
+    model.set_user_input(sheet, row, column - 1, "23".to_string());
+    model.set_user_input(sheet, row, column, "42".to_string());
+    model.set_user_input(sheet, row, column + 1, "=C5*2".to_string());
+    model.set_user_input(sheet, row, column + 2, "=A5+2".to_string());
+    model.set_user_input(sheet, 20, 3, "=C5*A2".to_string());
+    model.evaluate();
+
+    model
+        .insert_cells_and_shift_right(sheet, row, column, 1, 1)
+        .unwrap();
+
+    model.evaluate();
+    assert_eq!(
+        model.get_cell_content(0, row, column - 1),
+        Ok("23".to_string())
+    );
+    assert_eq!(model.get_cell_content(0, row, column), Ok("".to_string()));
+    assert_eq!(
+        model.get_cell_content(0, row, column + 1),
+        Ok("42".to_string())
+    );
+    assert_eq!(
+        model.get_cell_content(0, row, column + 2),
+        Ok("=D5*2".to_string())
+    );
+    assert_eq!(
+        model.get_cell_content(0, row, column + 3),
+        Ok("=A5+2".to_string())
+    );
+    assert_eq!(model.get_cell_content(0, 20, 3), Ok("=D5*A2".to_string()));
+}
+
+#[test]
+fn shift_cells_left() {
+    let mut model = new_empty_model();
+    let (sheet, row, column) = (0, 5, 10); // J5
+    model.set_user_input(sheet, row, column - 1, "23".to_string());
+    model.set_user_input(sheet, row, column, "42".to_string());
+    model.set_user_input(sheet, row, column + 1, "Hi".to_string());
+    model.set_user_input(sheet, row, column + 2, "honey!".to_string());
+    model.evaluate();
+
+    model
+        .delete_cells_and_shift_left(sheet, row, column, 1, 1)
+        .unwrap();
+
+    model.evaluate();
+    assert_eq!(
+        model.get_cell_content(0, row, column - 1),
+        Ok("23".to_string())
+    );
+
+    assert_eq!(model.get_cell_content(0, row, column), Ok("Hi".to_string()));
+    assert_eq!(
+        model.get_cell_content(0, row, column + 1),
+        Ok("honey!".to_string())
+    );
+}
+
+#[test]
+fn shift_cells_left_with_formulas() {
+    let mut model = new_empty_model();
+    let (sheet, row, column) = (0, 5, 10); // J5
+    model.set_user_input(sheet, row, column - 1, "23".to_string());
+    model.set_user_input(sheet, row, column, "42".to_string());
+    model.set_user_input(sheet, row, column + 1, "33".to_string());
+    model.set_user_input(sheet, row, column + 2, "=K5*A5".to_string());
+
+    model.set_user_input(sheet, row, column + 20, "=K5*A5".to_string());
+    model.evaluate();
+
+    model
+        .delete_cells_and_shift_left(sheet, row, column, 1, 1)
+        .unwrap();
+
+    model.evaluate();
+    assert_eq!(
+        model.get_cell_content(0, row, column + 1),
+        Ok("=J5*A5".to_string())
+    );
+    assert_eq!(
+        model.get_cell_content(0, row, column + 19),
+        Ok("=J5*A5".to_string())
+    );
+}

base/src/test/test_types.rs

@@ -0,0 +1,24 @@
+#![allow(clippy::unwrap_used)]
+
+use crate::types::{Alignment, HorizontalAlignment, VerticalAlignment};
+
+#[test]
+fn alignment_default() {
+    let alignment = Alignment::default();
+    assert_eq!(
+        alignment,
+        Alignment {
+            horizontal: HorizontalAlignment::General,
+            vertical: VerticalAlignment::Bottom,
+            wrap_text: false
+        }
+    );
+
+    let s = serde_json::to_string(&alignment).unwrap();
+    // defaults stringifies as an empty object
+    assert_eq!(s, "{}");
+
+    let a: Alignment = serde_json::from_str("{}").unwrap();
+
+    assert_eq!(a, alignment)
+}

base/src/test/test_worksheet.rs

@@ -10,7 +10,7 @@ use crate::{
 fn test_worksheet_dimension_empty_sheet() {
     let model = new_empty_model();
     assert_eq!(
-        model.workbook.worksheet(0).unwrap().dimension(),
+        model.workbook.worksheet(0).unwrap().get_dimension(),
         WorksheetDimension {
             min_row: 1,
             min_column: 1,
@@ -25,7 +25,7 @@ fn test_worksheet_dimension_single_cell() {
     let mut model = new_empty_model();
     model._set("W11", "1");
     assert_eq!(
-        model.workbook.worksheet(0).unwrap().dimension(),
+        model.workbook.worksheet(0).unwrap().get_dimension(),
         WorksheetDimension {
             min_row: 11,
             min_column: 23,
@@ -41,7 +41,7 @@ fn test_worksheet_dimension_single_cell_set_empty() {
     model._set("W11", "1");
     model.cell_clear_contents(0, 11, 23).unwrap();
     assert_eq!(
-        model.workbook.worksheet(0).unwrap().dimension(),
+        model.workbook.worksheet(0).unwrap().get_dimension(),
         WorksheetDimension {
             min_row: 11,
             min_column: 23,
@@ -57,7 +57,7 @@ fn test_worksheet_dimension_single_cell_deleted() {
     model._set("W11", "1");
     model.cell_clear_all(0, 11, 23).unwrap();
     assert_eq!(
-        model.workbook.worksheet(0).unwrap().dimension(),
+        model.workbook.worksheet(0).unwrap().get_dimension(),
         WorksheetDimension {
             min_row: 1,
             min_column: 1,
@@ -77,7 +77,7 @@ fn test_worksheet_dimension_multiple_cells() {
     model._set("B19", "1");
     model.cell_clear_all(0, 11, 23).unwrap();
     assert_eq!(
-        model.workbook.worksheet(0).unwrap().dimension(),
+        model.workbook.worksheet(0).unwrap().get_dimension(),
         WorksheetDimension {
             min_row: 11,
             min_column: 2,
@@ -91,7 +91,7 @@ fn test_worksheet_dimension_multiple_cells() {
 fn test_worksheet_dimension_progressive() {
     let mut model = new_empty_model();
     assert_eq!(
-        model.workbook.worksheet(0).unwrap().dimension(),
+        model.workbook.worksheet(0).unwrap().get_dimension(),
         WorksheetDimension {
             min_row: 1,
             min_column: 1,
@@ -102,7 +102,7 @@ fn test_worksheet_dimension_progressive() {
 
     model.set_user_input(0, 30, 50, "Hello World".to_string());
     assert_eq!(
-        model.workbook.worksheet(0).unwrap().dimension(),
+        model.workbook.worksheet(0).unwrap().get_dimension(),
         WorksheetDimension {
             min_row: 30,
             min_column: 50,
@@ -113,7 +113,7 @@ fn test_worksheet_dimension_progressive() {
 
     model.set_user_input(0, 10, 15, "Hello World".to_string());
     assert_eq!(
-        model.workbook.worksheet(0).unwrap().dimension(),
+        model.workbook.worksheet(0).unwrap().get_dimension(),
         WorksheetDimension {
             min_row: 10,
             min_column: 15,
@@ -124,7 +124,7 @@ fn test_worksheet_dimension_progressive() {
 
     model.set_user_input(0, 5, 25, "Hello World".to_string());
     assert_eq!(
-        model.workbook.worksheet(0).unwrap().dimension(),
+        model.workbook.worksheet(0).unwrap().get_dimension(),
         WorksheetDimension {
             min_row: 5,
             min_column: 15,
@@ -135,7 +135,7 @@ fn test_worksheet_dimension_progressive() {
 
     model.set_user_input(0, 10, 250, "Hello World".to_string());
     assert_eq!(
-        model.workbook.worksheet(0).unwrap().dimension(),
+        model.workbook.worksheet(0).unwrap().get_dimension(),
         WorksheetDimension {
             min_row: 5,
             min_column: 15,

base/src/test/user_model/mod.rs

@@ -5,6 +5,7 @@ mod test_evaluation;
 mod test_general;
 mod test_rename_sheet;
 mod test_row_column;
+mod test_shift_cells;
 mod test_styles;
 mod test_to_from_bytes;
 mod test_undo_redo;

base/src/test/user_model/test_diff_queue.rs

@@ -25,7 +25,7 @@ fn send_queue() {
 #[test]
 fn apply_external_diffs_wrong_str() {
     let mut model1 = UserModel::from_model(new_empty_model());
-    assert!(model1.apply_external_diffs("invalid").is_err());
+    assert!(model1.apply_external_diffs("invalid".as_bytes()).is_err());
 }
 
 #[test]
@@ -155,5 +155,7 @@ fn new_sheet() {
 #[test]
 fn wrong_diffs_handled() {
     let mut model = UserModel::from_model(new_empty_model());
-    assert!(model.apply_external_diffs("Hello world").is_err());
+    assert!(model
+        .apply_external_diffs("Hello world".as_bytes())
+        .is_err());
 }

base/src/test/user_model/test_shift_cells.rs

@@ -0,0 +1,23 @@
+#![allow(clippy::unwrap_used)]
+
+use crate::UserModel;
+
+#[test]
+fn shift_cells_general() {
+    let mut model = UserModel::new_empty("model", "en", "UTC").unwrap();
+    // some reference value in A1
+    model.set_user_input(0, 1, 1, "42").unwrap();
+
+    // We put some values in row 5
+    model.set_user_input(0, 5, 3, "=1 + 1").unwrap(); // C5
+    model.set_user_input(0, 5, 7, "=C5*A1").unwrap();
+
+    // Insert one cell in C5 and push right
+    model.insert_cells_and_shift_right(0, 5, 3, 1, 1).unwrap();
+
+    // C5 should now be empty
+    assert_eq!(model.get_cell_content(0, 5, 3), Ok("".to_string()));
+
+    // D5 should have 2
+    assert_eq!(model.get_cell_content(0, 5, 4), Ok("=1+1".to_string()));
+}

base/src/test/user_model/test_styles.rs

@@ -144,13 +144,18 @@ fn basic_fill() {
 
     let style = model.get_cell_style(0, 1, 1).unwrap();
     assert_eq!(style.fill.bg_color, None);
+    assert_eq!(style.fill.fg_color, None);
 
     // bg_color
     model
         .update_range_style(&range, "fill.bg_color", "#F2F2F2")
         .unwrap();
+    model
+        .update_range_style(&range, "fill.fg_color", "#F3F4F5")
+        .unwrap();
     let style = model.get_cell_style(0, 1, 1).unwrap();
     assert_eq!(style.fill.bg_color, Some("#F2F2F2".to_owned()));
+    assert_eq!(style.fill.fg_color, Some("#F3F4F5".to_owned()));
 
     let send_queue = model.flush_send_queue();
 
@@ -159,6 +164,7 @@ fn basic_fill() {
 
     let style = model2.get_cell_style(0, 1, 1).unwrap();
     assert_eq!(style.fill.bg_color, Some("#F2F2F2".to_owned()));
+    assert_eq!(style.fill.fg_color, Some("#F3F4F5".to_owned()));
 }
 
 #[test]
@@ -171,9 +177,15 @@ fn fill_errors() {
         width: 1,
         height: 1,
     };
-    assert!(model
-        .update_range_style(&range, "fill.bg_color", "#FFF")
-        .is_err());
+    assert_eq!(
+        model.update_range_style(&range, "fill.bg_color", "#FFF"),
+        Err("Invalid color: '#FFF'.".to_string())
+    );
+
+    assert_eq!(
+        model.update_range_style(&range, "fill.fg_color", "#FFF"),
+        Err("Invalid color: '#FFF'.".to_string())
+    );
 }
 
 #[test]

base/src/test/user_model/test_to_from_bytes.rs

@@ -25,6 +25,6 @@ fn errors() {
     let model_bytes = "Early in the morning, late in the century, Cricklewood Broadway.".as_bytes();
     assert_eq!(
         &UserModel::from_bytes(model_bytes).unwrap_err(),
-        "Error parsing workbook"
+        "Error parsing workbook: invalid packing"
     );
 }

base/src/types.rs

@@ -4,37 +4,15 @@ use std::{collections::HashMap, fmt::Display};
 
 use crate::expressions::token::Error;
 
-// Useful for `#[serde(default = "default_as_true")]`
-fn default_as_true() -> bool {
-    true
-}
-
 fn default_as_false() -> bool {
     false
 }
 
-// Useful for `#[serde(skip_serializing_if = "is_true")]`
-fn is_true(b: &bool) -> bool {
-    *b
-}
-
 fn is_false(b: &bool) -> bool {
     !*b
 }
 
-fn is_zero(num: &i32) -> bool {
-    *num == 0
-}
-
-fn is_default_alignment(o: &Option<Alignment>) -> bool {
-    o.is_none() || *o == Some(Alignment::default())
-}
-
-fn hashmap_is_empty(h: &HashMap<String, Table>) -> bool {
-    h.values().len() == 0
-}
-
-#[derive(Serialize, Deserialize, Encode, Decode, Debug, PartialEq, Eq, Clone)]
+#[derive(Encode, Decode, Debug, PartialEq, Eq, Clone)]
 pub struct Metadata {
     pub application: String,
     pub app_version: String,
@@ -44,14 +22,13 @@ pub struct Metadata {
     pub last_modified: String, //"2020-11-20T16:24:35"
 }
 
-#[derive(Serialize, Deserialize, Encode, Decode, Debug, PartialEq, Eq, Clone)]
+#[derive(Encode, Decode, Debug, PartialEq, Eq, Clone)]
 pub struct WorkbookSettings {
     pub tz: String,
     pub locale: String,
 }
 /// An internal representation of an IronCalc Workbook
-#[derive(Serialize, Deserialize, Encode, Decode, Debug, PartialEq, Clone)]
-#[serde(deny_unknown_fields)]
+#[derive(Encode, Decode, Debug, PartialEq, Clone)]
 pub struct Workbook {
     pub shared_strings: Vec<String>,
     pub defined_names: Vec<DefinedName>,
@@ -60,17 +37,14 @@ pub struct Workbook {
     pub name: String,
     pub settings: WorkbookSettings,
     pub metadata: Metadata,
-    #[serde(default)]
-    #[serde(skip_serializing_if = "hashmap_is_empty")]
     pub tables: HashMap<String, Table>,
 }
 
 /// A defined name. The `sheet_id` is the sheet index in case the name is local
-#[derive(Serialize, Deserialize, Encode, Decode, Debug, PartialEq, Eq, Clone)]
+#[derive(Encode, Decode, Debug, PartialEq, Eq, Clone)]
 pub struct DefinedName {
     pub name: String,
     pub formula: String,
-    #[serde(skip_serializing_if = "Option::is_none")]
     pub sheet_id: Option<u32>,
 }
 
@@ -80,8 +54,7 @@ pub struct DefinedName {
 /// * state:
 ///    18.18.68 ST_SheetState (Sheet Visibility Types)
 ///    hidden, veryHidden, visible
-#[derive(Serialize, Deserialize, Encode, Decode, Debug, PartialEq, Eq, Clone)]
-#[serde(rename_all = "lowercase")]
+#[derive(Encode, Decode, Debug, PartialEq, Eq, Clone)]
 pub enum SheetState {
     Visible,
     Hidden,
@@ -98,8 +71,16 @@ impl Display for SheetState {
     }
 }
 
+#[derive(Encode, Decode, Debug, PartialEq, Clone)]
+pub struct Selection {
+    pub is_selected: bool,
+    pub row: i32,
+    pub column: i32,
+    pub range: [i32; 4],
+}
+
 /// Internal representation of a worksheet Excel object
-#[derive(Serialize, Deserialize, Encode, Decode, Debug, PartialEq, Clone)]
+#[derive(Encode, Decode, Debug, PartialEq, Clone)]
 pub struct Worksheet {
     pub dimension: String,
     pub cols: Vec<Col>,
@@ -109,16 +90,12 @@ pub struct Worksheet {
     pub shared_formulas: Vec<String>,
     pub sheet_id: u32,
     pub state: SheetState,
-    #[serde(skip_serializing_if = "Option::is_none")]
     pub color: Option<String>,
     pub merge_cells: Vec<String>,
     pub comments: Vec<Comment>,
-    #[serde(default)]
-    #[serde(skip_serializing_if = "is_zero")]
     pub frozen_rows: i32,
-    #[serde(default)]
-    #[serde(skip_serializing_if = "is_zero")]
     pub frozen_columns: i32,
+    pub selection: Selection,
 }
 
 /// Internal representation of Excel's sheet_data
@@ -126,7 +103,7 @@ pub struct Worksheet {
 pub type SheetData = HashMap<i32, HashMap<i32, Cell>>;
 
 // ECMA-376-1:2016 section 18.3.1.73
-#[derive(Serialize, Deserialize, Encode, Decode, Debug, PartialEq, Clone)]
+#[derive(Encode, Decode, Debug, PartialEq, Clone)]
 pub struct Row {
     /// Row index
     pub r: i32,
@@ -134,23 +111,19 @@ pub struct Row {
     pub custom_format: bool,
     pub custom_height: bool,
     pub s: i32,
-    #[serde(default = "default_as_false")]
-    #[serde(skip_serializing_if = "is_false")]
     pub hidden: bool,
 }
 
 // ECMA-376-1:2016 section 18.3.1.13
-#[derive(Serialize, Deserialize, Encode, Decode, Debug, PartialEq, Clone)]
+#[derive(Encode, Decode, Debug, PartialEq, Clone)]
 pub struct Col {
     // Column definitions are defined on ranges, unlike rows which store unique, per-row entries.
     /// First column affected by this record. Settings apply to column in \[min, max\] range.
     pub min: i32,
     /// Last column affected by this record. Settings apply to column in \[min, max\] range.
     pub max: i32,
-
     pub width: f64,
     pub custom_width: bool,
-    #[serde(skip_serializing_if = "Option::is_none")]
     pub style: Option<i32>,
 }
 
@@ -165,32 +138,55 @@ pub enum CellType {
     CompoundData = 128,
 }
 
-#[derive(Serialize, Deserialize, Encode, Decode, Debug, Clone, PartialEq)]
-#[serde(tag = "t", deny_unknown_fields)]
+#[derive(Encode, Decode, Debug, Clone, PartialEq)]
 pub enum Cell {
-    #[serde(rename = "empty")]
-    EmptyCell { s: i32 },
-    #[serde(rename = "b")]
-    BooleanCell { v: bool, s: i32 },
-    #[serde(rename = "n")]
-    NumberCell { v: f64, s: i32 },
+    EmptyCell {
+        s: i32,
+    },
+
+    BooleanCell {
+        v: bool,
+        s: i32,
+    },
+
+    NumberCell {
+        v: f64,
+        s: i32,
+    },
     // Maybe we should not have this type. In Excel this is just a string
-    #[serde(rename = "e")]
-    ErrorCell { ei: Error, s: i32 },
+    ErrorCell {
+        ei: Error,
+        s: i32,
+    },
     // Always a shared string
-    #[serde(rename = "s")]
-    SharedString { si: i32, s: i32 },
+    SharedString {
+        si: i32,
+        s: i32,
+    },
     // Non evaluated Formula
-    #[serde(rename = "u")]
-    CellFormula { f: i32, s: i32 },
-    #[serde(rename = "fb")]
-    CellFormulaBoolean { f: i32, v: bool, s: i32 },
-    #[serde(rename = "fn")]
-    CellFormulaNumber { f: i32, v: f64, s: i32 },
+    CellFormula {
+        f: i32,
+        s: i32,
+    },
+
+    CellFormulaBoolean {
+        f: i32,
+        v: bool,
+        s: i32,
+    },
+
+    CellFormulaNumber {
+        f: i32,
+        v: f64,
+        s: i32,
+    },
     // always inline string
-    #[serde(rename = "str")]
-    CellFormulaString { f: i32, v: String, s: i32 },
-    #[serde(rename = "fe")]
+    CellFormulaString {
+        f: i32,
+        v: String,
+        s: i32,
+    },
+
     CellFormulaError {
         f: i32,
         ei: Error,
@@ -209,17 +205,16 @@ impl Default for Cell {
     }
 }
 
-#[derive(Serialize, Deserialize, Encode, Decode, Debug, PartialEq, Eq, Clone)]
+#[derive(Encode, Decode, Debug, PartialEq, Eq, Clone)]
 pub struct Comment {
     pub text: String,
     pub author_name: String,
-    #[serde(skip_serializing_if = "Option::is_none")]
     pub author_id: Option<String>,
     pub cell_ref: String,
 }
 
 // ECMA-376-1:2016 section 18.5.1.2
-#[derive(Serialize, Deserialize, Encode, Decode, Debug, PartialEq, Eq, Clone)]
+#[derive(Encode, Decode, Debug, PartialEq, Eq, Clone)]
 pub struct Table {
     pub name: String,
     pub display_name: String,
@@ -227,34 +222,24 @@ pub struct Table {
     pub reference: String,
     pub totals_row_count: u32,
     pub header_row_count: u32,
-    #[serde(skip_serializing_if = "Option::is_none")]
     pub header_row_dxf_id: Option<u32>,
-    #[serde(skip_serializing_if = "Option::is_none")]
     pub data_dxf_id: Option<u32>,
-    #[serde(skip_serializing_if = "Option::is_none")]
     pub totals_row_dxf_id: Option<u32>,
     pub columns: Vec<TableColumn>,
     pub style_info: TableStyleInfo,
-    #[serde(default = "default_as_false")]
-    #[serde(skip_serializing_if = "is_false")]
     pub has_filters: bool,
 }
 
 // totals_row_label vs totals_row_function might be mutually exclusive. Use an enum?
 // the totals_row_function is an enum not String methinks
-#[derive(Serialize, Deserialize, Encode, Decode, Debug, PartialEq, Eq, Clone)]
+#[derive(Encode, Decode, Debug, PartialEq, Eq, Clone)]
 pub struct TableColumn {
     pub id: u32,
     pub name: String,
-    #[serde(skip_serializing_if = "Option::is_none")]
     pub totals_row_label: Option<String>,
-    #[serde(skip_serializing_if = "Option::is_none")]
     pub header_row_dxf_id: Option<u32>,
-    #[serde(skip_serializing_if = "Option::is_none")]
     pub data_dxf_id: Option<u32>,
-    #[serde(skip_serializing_if = "Option::is_none")]
     pub totals_row_dxf_id: Option<u32>,
-    #[serde(skip_serializing_if = "Option::is_none")]
     pub totals_row_function: Option<String>,
 }
 
@@ -272,25 +257,16 @@ impl Default for TableColumn {
     }
 }
 
-#[derive(Serialize, Deserialize, Encode, Decode, Debug, PartialEq, Eq, Clone, Default)]
+#[derive(Encode, Decode, Debug, PartialEq, Eq, Clone, Default)]
 pub struct TableStyleInfo {
-    #[serde(skip_serializing_if = "Option::is_none")]
     pub name: Option<String>,
-    #[serde(default = "default_as_false")]
-    #[serde(skip_serializing_if = "is_false")]
     pub show_first_column: bool,
-    #[serde(default = "default_as_false")]
-    #[serde(skip_serializing_if = "is_false")]
     pub show_last_column: bool,
-    #[serde(default = "default_as_false")]
-    #[serde(skip_serializing_if = "is_false")]
     pub show_row_stripes: bool,
-    #[serde(default = "default_as_false")]
-    #[serde(skip_serializing_if = "is_false")]
     pub show_column_stripes: bool,
 }
 
-#[derive(Serialize, Deserialize, Encode, Decode, Debug, PartialEq, Eq, Clone)]
+#[derive(Encode, Decode, Debug, PartialEq, Eq, Clone)]
 pub struct Styles {
     pub num_fmts: Vec<NumFmt>,
     pub fonts: Vec<Font>,
@@ -326,7 +302,7 @@ pub struct Style {
     pub quote_prefix: bool,
 }
 
-#[derive(Serialize, Deserialize, Encode, Decode, Debug, PartialEq, Eq, Clone)]
+#[derive(Encode, Decode, Debug, PartialEq, Eq, Clone)]
 pub struct NumFmt {
     pub num_fmt_id: i32,
     pub format_code: String,
@@ -516,29 +492,17 @@ pub struct Alignment {
     pub wrap_text: bool,
 }
 
-#[derive(Serialize, Deserialize, Encode, Decode, Debug, PartialEq, Eq, Clone)]
+#[derive(Encode, Decode, Debug, PartialEq, Eq, Clone)]
 pub struct CellStyleXfs {
     pub num_fmt_id: i32,
     pub font_id: i32,
     pub fill_id: i32,
     pub border_id: i32,
-    #[serde(default = "default_as_true")]
-    #[serde(skip_serializing_if = "is_true")]
     pub apply_number_format: bool,
-    #[serde(default = "default_as_true")]
-    #[serde(skip_serializing_if = "is_true")]
     pub apply_border: bool,
-    #[serde(default = "default_as_true")]
-    #[serde(skip_serializing_if = "is_true")]
     pub apply_alignment: bool,
-    #[serde(default = "default_as_true")]
-    #[serde(skip_serializing_if = "is_true")]
     pub apply_protection: bool,
-    #[serde(default = "default_as_true")]
-    #[serde(skip_serializing_if = "is_true")]
     pub apply_font: bool,
-    #[serde(default = "default_as_true")]
-    #[serde(skip_serializing_if = "is_true")]
     pub apply_fill: bool,
 }
 
@@ -559,39 +523,24 @@ impl Default for CellStyleXfs {
     }
 }
 
-#[derive(Serialize, Deserialize, Encode, Decode, Debug, PartialEq, Eq, Clone, Default)]
+#[derive(Encode, Decode, Debug, PartialEq, Eq, Clone, Default)]
 pub struct CellXfs {
     pub xf_id: i32,
     pub num_fmt_id: i32,
     pub font_id: i32,
     pub fill_id: i32,
     pub border_id: i32,
-    #[serde(default = "default_as_false")]
-    #[serde(skip_serializing_if = "is_false")]
     pub apply_number_format: bool,
-    #[serde(default = "default_as_false")]
-    #[serde(skip_serializing_if = "is_false")]
     pub apply_border: bool,
-    #[serde(default = "default_as_false")]
-    #[serde(skip_serializing_if = "is_false")]
     pub apply_alignment: bool,
-    #[serde(default = "default_as_false")]
-    #[serde(skip_serializing_if = "is_false")]
     pub apply_protection: bool,
-    #[serde(default = "default_as_false")]
-    #[serde(skip_serializing_if = "is_false")]
     pub apply_font: bool,
-    #[serde(default = "default_as_false")]
-    #[serde(skip_serializing_if = "is_false")]
     pub apply_fill: bool,
-    #[serde(default = "default_as_false")]
-    #[serde(skip_serializing_if = "is_false")]
     pub quote_prefix: bool,
-    #[serde(skip_serializing_if = "is_default_alignment")]
     pub alignment: Option<Alignment>,
 }
 
-#[derive(Serialize, Deserialize, Encode, Decode, Debug, PartialEq, Eq, Clone)]
+#[derive(Encode, Decode, Debug, PartialEq, Eq, Clone)]
 pub struct CellStyles {
     pub name: String,
     pub xf_id: i32,

base/src/user_model.rs

@@ -2,7 +2,7 @@
 
 use std::{collections::HashMap, fmt::Debug};
 
-use serde::{Deserialize, Serialize};
+use bitcode::{Decode, Encode};
 
 use crate::{
     constants,
@@ -18,19 +18,19 @@ use crate::{
     utils::is_valid_hex_color,
 };
 
-#[derive(Clone, Serialize, Deserialize)]
+#[derive(Clone, Encode, Decode)]
 struct RowData {
     row: Option<Row>,
     data: HashMap<i32, Cell>,
 }
 
-#[derive(Clone, Serialize, Deserialize)]
+#[derive(Clone, Encode, Decode)]
 struct ColumnData {
     column: Option<Col>,
     data: HashMap<i32, Cell>,
 }
 
-#[derive(Clone, Serialize, Deserialize)]
+#[derive(Clone, Encode, Decode)]
 enum Diff {
     // Cell diffs
     SetCellValue {
@@ -91,6 +91,36 @@ enum Diff {
         column: i32,
         old_data: Box<ColumnData>,
     },
+    InsertCellsShiftRight {
+        sheet: u32,
+        row: i32,
+        column: i32,
+        row_delta: i32,
+        column_delta: i32,
+    },
+    InsertCellsShiftDown {
+        sheet: u32,
+        row: i32,
+        column: i32,
+        row_delta: i32,
+        column_delta: i32,
+    },
+    DeleteCellsShiftLeft {
+        sheet: u32,
+        row: i32,
+        column: i32,
+        row_delta: i32,
+        column_delta: i32,
+        old_data: Vec<Vec<Option<Cell>>>,
+    },
+    DeleteCellsShiftUp {
+        sheet: u32,
+        row: i32,
+        column: i32,
+        row_delta: i32,
+        column_delta: i32,
+        old_data: Vec<Vec<Option<Cell>>>,
+    },
     SetFrozenRowsCount {
         sheet: u32,
         new_value: i32,
@@ -160,13 +190,13 @@ impl History {
     }
 }
 
-#[derive(Clone, Serialize, Deserialize)]
+#[derive(Clone, Encode, Decode)]
 enum DiffType {
     Undo,
     Redo,
 }
 
-#[derive(Clone, Serialize, Deserialize)]
+#[derive(Clone, Encode, Decode)]
 struct QueueDiffs {
     r#type: DiffType,
     list: DiffList,
@@ -408,9 +438,9 @@ impl UserModel {
     ///
     /// See also:
     /// * [UserModel::apply_external_diffs]
-    pub fn flush_send_queue(&mut self) -> String {
+    pub fn flush_send_queue(&mut self) -> Vec<u8> {
         // This can never fail :O:
-        let q = serde_json::to_string(&self.send_queue).unwrap();
+        let q = bitcode::encode(&self.send_queue);
         self.send_queue = vec![];
         q
     }
@@ -421,8 +451,8 @@ impl UserModel {
     ///
     /// See also:
     /// * [UserModel::flush_send_queue]
-    pub fn apply_external_diffs(&mut self, diff_list_str: &str) -> Result<(), String> {
-        if let Ok(queue_diffs_list) = serde_json::from_str::<Vec<QueueDiffs>>(diff_list_str) {
+    pub fn apply_external_diffs(&mut self, diff_list_str: &[u8]) -> Result<(), String> {
+        if let Ok(queue_diffs_list) = bitcode::decode::<Vec<QueueDiffs>>(diff_list_str) {
             for queue_diff in queue_diffs_list {
                 if matches!(queue_diff.r#type, DiffType::Redo) {
                     self.apply_diff_list(&queue_diff.list)?;
@@ -713,6 +743,123 @@ impl UserModel {
         self.model.delete_columns(sheet, column, 1)
     }
 
+    /// Insert cells in the area pushing the existing ones to the right
+    ///
+    /// See also:
+    /// * [Model::insert_cells_and_shift_right]
+    pub fn insert_cells_and_shift_right(
+        &mut self,
+        sheet: u32,
+        row: i32,
+        column: i32,
+        row_delta: i32,
+        column_delta: i32,
+    ) -> Result<(), String> {
+        let diff_list = vec![Diff::InsertCellsShiftRight {
+            sheet,
+            row,
+            column,
+            row_delta,
+            column_delta,
+        }];
+        self.push_diff_list(diff_list);
+        self.model
+            .insert_cells_and_shift_right(sheet, row, column, row_delta, column_delta)?;
+        self.model.evaluate();
+        Ok(())
+    }
+
+    /// Insert cells in the area pushing the existing ones down
+    pub fn insert_cells_and_shift_down(
+        &mut self,
+        sheet: u32,
+        row: i32,
+        column: i32,
+        row_delta: i32,
+        column_delta: i32,
+    ) -> Result<(), String> {
+        let diff_list = vec![Diff::InsertCellsShiftDown {
+            sheet,
+            row,
+            column,
+            row_delta,
+            column_delta,
+        }];
+        self.push_diff_list(diff_list);
+        self.model
+            .insert_cells_and_shift_down(sheet, row, column, row_delta, column_delta)?;
+        self.model.evaluate();
+        Ok(())
+    }
+
+    /// Delete cells in the specified area and then shift cells left to fill the gap.
+    pub fn delete_cells_and_shift_left(
+        &mut self,
+        sheet: u32,
+        row: i32,
+        column: i32,
+        row_delta: i32,
+        column_delta: i32,
+    ) -> Result<(), String> {
+        let mut old_data = Vec::new();
+        let worksheet = self.model.workbook.worksheet(sheet)?;
+        for r in row..row + row_delta {
+            let mut row_data = Vec::new();
+            for c in column..column + column_delta {
+                let cell = worksheet.cell(r, c);
+                row_data.push(cell.cloned());
+            }
+            old_data.push(row_data);
+        }
+        let diff_list = vec![Diff::DeleteCellsShiftLeft {
+            sheet,
+            row,
+            column,
+            row_delta,
+            column_delta,
+            old_data,
+        }];
+        self.push_diff_list(diff_list);
+        self.model
+            .delete_cells_and_shift_left(sheet, row, column, row_delta, column_delta)?;
+        self.model.evaluate();
+        Ok(())
+    }
+
+    /// Delete cells in the specified area and then shift cells upward to fill the gap.
+    pub fn delete_cells_and_shift_up(
+        &mut self,
+        sheet: u32,
+        row: i32,
+        column: i32,
+        row_delta: i32,
+        column_delta: i32,
+    ) -> Result<(), String> {
+        let mut old_data = Vec::new();
+        let worksheet = self.model.workbook.worksheet(sheet)?;
+        for r in row..row + row_delta {
+            let mut row_data = Vec::new();
+            for c in column..column + column_delta {
+                let cell = worksheet.cell(r, c);
+                row_data.push(cell.cloned());
+            }
+            old_data.push(row_data);
+        }
+        let diff_list = vec![Diff::DeleteCellsShiftUp {
+            sheet,
+            row,
+            column,
+            row_delta,
+            column_delta,
+            old_data,
+        }];
+        self.push_diff_list(diff_list);
+        self.model
+            .delete_cells_and_shift_up(sheet, row, column, row_delta, column_delta)?;
+        self.model.evaluate();
+        Ok(())
+    }
+
     /// Sets the width of a column
     ///
     /// See also:
@@ -845,8 +992,11 @@ impl UserModel {
                     "fill.bg_color" => {
                         style.fill.bg_color = color(value)?;
                     }
+                    "fill.fg_color" => {
+                        style.fill.fg_color = color(value)?;
+                    }
                     "num_fmt" => {
-                        style.num_fmt = value.to_owned();
+                        value.clone_into(&mut style.num_fmt);
                     }
                     "border.left" => {
                         style.border.left = border(value)?;
@@ -1095,6 +1245,94 @@ impl UserModel {
                 } => {
                     self.model.set_sheet_color(*index, old_value)?;
                 }
+                Diff::InsertCellsShiftRight {
+                    sheet,
+                    row,
+                    column,
+                    row_delta,
+                    column_delta,
+                } => {
+                    needs_evaluation = true;
+                    self.model.delete_cells_and_shift_left(
+                        *sheet,
+                        *row,
+                        *column,
+                        *row_delta,
+                        *column_delta,
+                    )?;
+                }
+                Diff::InsertCellsShiftDown {
+                    sheet,
+                    row,
+                    column,
+                    row_delta,
+                    column_delta,
+                } => {
+                    needs_evaluation = true;
+                    self.model.delete_cells_and_shift_up(
+                        *sheet,
+                        *row,
+                        *column,
+                        *row_delta,
+                        *column_delta,
+                    )?;
+                }
+                Diff::DeleteCellsShiftLeft {
+                    sheet,
+                    row,
+                    column,
+                    row_delta,
+                    column_delta,
+                    old_data,
+                } => {
+                    needs_evaluation = true;
+                    // Sets old data
+                    let worksheet = self.model.workbook.worksheet_mut(*sheet)?;
+                    for r in *row..*row + *row_delta {
+                        for c in *column..*column + *column_delta {
+                            if let Some(cell) = &old_data[r as usize][c as usize] {
+                                worksheet.update_cell(r, c, cell.clone());
+                            } else {
+                                worksheet.cell_clear_contents(r, c);
+                            }
+                        }
+                    }
+                    self.model.insert_cells_and_shift_right(
+                        *sheet,
+                        *row,
+                        *column,
+                        *row_delta,
+                        *column_delta,
+                    )?;
+                }
+                Diff::DeleteCellsShiftUp {
+                    sheet,
+                    row,
+                    column,
+                    row_delta,
+                    column_delta,
+                    old_data,
+                } => {
+                    needs_evaluation = true;
+                    // Sets old data
+                    let worksheet = self.model.workbook.worksheet_mut(*sheet)?;
+                    for r in *row..*row + *row_delta {
+                        for c in *column..*column + *column_delta {
+                            if let Some(cell) = &old_data[r as usize][c as usize] {
+                                worksheet.update_cell(r, c, cell.clone());
+                            } else {
+                                worksheet.cell_clear_contents(r, c);
+                            }
+                        }
+                    }
+                    self.model.insert_cells_and_shift_down(
+                        *sheet,
+                        *row,
+                        *column,
+                        *row_delta,
+                        *column_delta,
+                    )?;
+                }
             }
         }
         if needs_evaluation {
@@ -1215,6 +1453,72 @@ impl UserModel {
                 } => {
                     self.model.set_sheet_color(*index, new_value)?;
                 }
+                Diff::InsertCellsShiftRight {
+                    sheet,
+                    row,
+                    column,
+                    row_delta,
+                    column_delta,
+                } => {
+                    self.model.insert_cells_and_shift_right(
+                        *sheet,
+                        *row,
+                        *column,
+                        *row_delta,
+                        *column_delta,
+                    )?;
+                    needs_evaluation = true;
+                }
+                Diff::InsertCellsShiftDown {
+                    sheet,
+                    row,
+                    column,
+                    row_delta,
+                    column_delta,
+                } => {
+                    self.model.insert_cells_and_shift_down(
+                        *sheet,
+                        *row,
+                        *column,
+                        *row_delta,
+                        *column_delta,
+                    )?;
+                    needs_evaluation = true;
+                }
+                Diff::DeleteCellsShiftLeft {
+                    sheet,
+                    row,
+                    column,
+                    row_delta,
+                    column_delta,
+                    old_data: _,
+                } => {
+                    self.model.delete_cells_and_shift_left(
+                        *sheet,
+                        *row,
+                        *column,
+                        *row_delta,
+                        *column_delta,
+                    )?;
+                    needs_evaluation = true;
+                }
+                Diff::DeleteCellsShiftUp {
+                    sheet,
+                    row,
+                    column,
+                    row_delta,
+                    column_delta,
+                    old_data: _,
+                } => {
+                    self.model.delete_cells_and_shift_up(
+                        *sheet,
+                        *row,
+                        *column,
+                        *row_delta,
+                        *column_delta,
+                    )?;
+                    needs_evaluation = true;
+                }
             }
         }
 

base/src/worksheet.rs

@@ -394,7 +394,7 @@ impl Worksheet {
     }
 
     /// Calculates dimension of the sheet. This function isn't cheap to calculate.
-    pub fn dimension(&self) -> WorksheetDimension {
+    pub fn get_dimension(&self) -> WorksheetDimension {
         // FIXME: It's probably better to just track the size as operations happen.
         if self.sheet_data.is_empty() {
             return WorksheetDimension {

bindings/wasm/Makefile

@@ -1,9 +1,12 @@
 all:
-	wasm-pack build --target web --scope ironcalc
+	wasm-pack build --target web --scope ironcalc --release
 	cp README.pkg.md pkg/README.md
 	tsc types.ts --target esnext --module esnext
 	python fix_types.py
 
+tests:
+	wasm-pack build --target nodejs && node tests/test.mjs
+
 lint:
 	cargo check
 	cargo fmt -- --check

bindings/wasm/fix_types.py

@@ -14,9 +14,9 @@ export function getTokens(formula: string): any;
 """.strip()
 
 get_tokens_str_types = r"""
-* @returns {TokenType[]}
+* @returns {MarkedToken[]}
 */
-export function getTokens(formula: string): TokenType[];
+export function getTokens(formula: string): MarkedToken[];
 """.strip()
 
 update_style_str = r"""

bindings/wasm/src/lib.rs

@@ -4,7 +4,7 @@ use wasm_bindgen::{
 };
 
 use ironcalc_base::{
-    expressions::{lexer::util::get_tokens as tokenizer, types::Area},
+    expressions::{lexer::marked_token::get_tokens as tokenizer, types::Area},
     types::CellType,
     UserModel as BaseModel,
 };
@@ -71,12 +71,12 @@ impl Model {
     }
 
     #[wasm_bindgen(js_name = "flushSendQueue")]
-    pub fn flush_send_queue(&mut self) -> String {
+    pub fn flush_send_queue(&mut self) -> Vec<u8> {
         self.model.flush_send_queue()
     }
 
     #[wasm_bindgen(js_name = "applyExternalDiffs")]
-    pub fn apply_external_diffs(&mut self, diffs: &str) -> Result<(), JsError> {
+    pub fn apply_external_diffs(&mut self, diffs: &[u8]) -> Result<(), JsError> {
         self.model.apply_external_diffs(diffs).map_err(to_js_error)
     }
 

xlsx/src/bin/test.rs

@@ -8,7 +8,7 @@
 
 use std::path;
 
-use ironcalc::{compare::test_file, export::save_to_xlsx, import::load_model_from_xlsx};
+use ironcalc::{compare::test_file, export::save_to_xlsx, import::load_from_xlsx};
 
 fn main() {
     let args: Vec<_> = std::env::args().collect();
@@ -27,7 +27,7 @@ fn main() {
     let file_path = path::Path::new(file_name);
     let base_name = file_path.file_stem().unwrap().to_str().unwrap();
     let output_file_name = &format!("{base_name}.output.xlsx");
-    let mut model = load_model_from_xlsx(file_name, "en", "UTC").unwrap();
+    let mut model = load_from_xlsx(file_name, "en", "UTC").unwrap();
     model.evaluate();
     println!("Saving result as: {output_file_name}. Please open with Excel and test.");
     save_to_xlsx(&model, output_file_name).unwrap();

xlsx/src/bin/xlsx_2_icalc.rs

@@ -1,26 +1,21 @@
-//! Tests an Excel xlsx file.
-//! Returns a list of differences in json format.
-//! Saves an IronCalc version
-//! This is primary for QA internal testing and will be superseded by an official
-//! IronCalc CLI.
+//! Converts an xlsx file into the binary IronCalc format
 //!
-//! Usage: test file.xlsx
+//! Usage: xlsx_2_icalc file.xlsx
 
 use std::path;
 
-use ironcalc::{export::save_to_json, import::load_model_from_xlsx};
+use ironcalc::{export::save_to_icalc, import::load_from_xlsx};
 
 fn main() {
     let args: Vec<_> = std::env::args().collect();
     if args.len() != 2 {
         panic!("Usage: {} <file.xlsx>", args[0]);
     }
-    // first test the file
     let file_name = &args[1];
 
     let file_path = path::Path::new(file_name);
     let base_name = file_path.file_stem().unwrap().to_str().unwrap();
     let output_file_name = &format!("{base_name}.ic");
-    let model = load_model_from_xlsx(file_name, "en", "UTC").unwrap();
-    save_to_json(model.workbook, output_file_name);
+    let model = load_from_xlsx(file_name, "en", "UTC").unwrap();
+    save_to_icalc(model.workbook, output_file_name);
 }

xlsx/src/compare.rs

@@ -5,7 +5,7 @@ use ironcalc_base::types::*;
 use ironcalc_base::{expressions::utils::number_to_column, Model};
 
 use crate::export::save_to_xlsx;
-use crate::import::load_model_from_xlsx;
+use crate::import::load_from_xlsx;
 
 pub struct CompareError {
     message: String,
@@ -164,13 +164,13 @@ pub(crate) fn compare_models(m1: &Model, m2: &Model) -> Result<(), String> {
                 let mut message = "".to_string();
                 for diff in diffs {
                     message = format!(
-                        "{}\n.Diff: {}!{}{}, value1: {}, value2 {}\n {}",
+                        "{}\n.Diff: {}!{}{}, value1: {:?}, value2 {:?}\n {}",
                         message,
                         diff.sheet_name,
                         number_to_column(diff.column).unwrap(),
                         diff.row,
-                        serde_json::to_string(&diff.value1).unwrap(),
-                        serde_json::to_string(&diff.value2).unwrap(),
+                        &diff.value1,
+                        &diff.value2,
                         diff.reason
                     );
                 }
@@ -183,15 +183,15 @@ pub(crate) fn compare_models(m1: &Model, m2: &Model) -> Result<(), String> {
 
 /// Tests that file in file_path produces the same results in Excel and in IronCalc.
 pub fn test_file(file_path: &str) -> Result<(), String> {
-    let model1 = load_model_from_xlsx(file_path, "en", "UTC").unwrap();
-    let mut model2 = load_model_from_xlsx(file_path, "en", "UTC").unwrap();
+    let model1 = load_from_xlsx(file_path, "en", "UTC").unwrap();
+    let mut model2 = load_from_xlsx(file_path, "en", "UTC").unwrap();
     model2.evaluate();
     compare_models(&model1, &model2)
 }
 
 /// Tests that file in file_path can be converted to xlsx and read again
 pub fn test_load_and_saving(file_path: &str, temp_dir_name: &Path) -> Result<(), String> {
-    let model1 = load_model_from_xlsx(file_path, "en", "UTC").unwrap();
+    let model1 = load_from_xlsx(file_path, "en", "UTC").unwrap();
 
     let base_name = Path::new(file_path).file_name().unwrap().to_str().unwrap();
 
@@ -200,7 +200,7 @@ pub fn test_load_and_saving(file_path: &str, temp_dir_name: &Path) -> Result<(),
     // test can save
     save_to_xlsx(&model1, temp_file_path).unwrap();
     // test can open
-    let mut model2 = load_model_from_xlsx(temp_file_path, "en", "UTC").unwrap();
+    let mut model2 = load_from_xlsx(temp_file_path, "en", "UTC").unwrap();
     model2.evaluate();
     compare_models(&model1, &model2)
 }

xlsx/src/export/mod.rs

@@ -108,7 +108,7 @@ pub fn save_xlsx_to_writer<W: Write + Seek>(model: &Model, writer: W) -> Result<
             .workbook
             .worksheet(sheet_index as u32)
             .unwrap()
-            .dimension();
+            .get_dimension();
         let column_min_str = number_to_column(dimension.min_column).unwrap();
         let column_max_str = number_to_column(dimension.max_column).unwrap();
         let min_row = dimension.min_row;
@@ -129,9 +129,9 @@ pub fn save_xlsx_to_writer<W: Write + Seek>(model: &Model, writer: W) -> Result<
 }
 
 /// Exports an internal representation of a workbook into an equivalent IronCalc json format
-pub fn save_to_json(workbook: Workbook, output: &str) {
-    let s = serde_json::to_string(&workbook).unwrap();
+pub fn save_to_icalc(workbook: Workbook, output: &str) {
+    let s = bitcode::encode(&workbook);
     let file_path = std::path::Path::new(output);
     let mut file = fs::File::create(file_path).unwrap();
-    file.write_all(s.as_bytes()).unwrap();
+    file.write_all(&s).unwrap();
 }

xlsx/src/export/test/test_export.rs

@@ -3,7 +3,9 @@ use std::fs;
 use ironcalc_base::Model;
 
 use crate::error::XlsxError;
-use crate::{export::save_to_xlsx, import::load_model_from_xlsx};
+use crate::export::save_to_icalc;
+use crate::import::load_from_icalc;
+use crate::{export::save_to_xlsx, import::load_from_xlsx};
 
 pub fn new_empty_model() -> Model {
     Model::new_empty("model", "en", "UTC").unwrap()
@@ -26,11 +28,11 @@ fn test_values() {
 
     // noop
     model.evaluate();
-
+    {
         let temp_file_name = "temp_file_test_values.xlsx";
         save_to_xlsx(&model, temp_file_name).unwrap();
 
-    let model = load_model_from_xlsx(temp_file_name, "en", "UTC").unwrap();
+        let model = load_from_xlsx(temp_file_name, "en", "UTC").unwrap();
         assert_eq!(model.get_formatted_cell_value(0, 1, 1).unwrap(), "123.456");
         assert_eq!(
             model.get_formatted_cell_value(0, 2, 1).unwrap(),
@@ -50,6 +52,31 @@ fn test_values() {
 
         fs::remove_file(temp_file_name).unwrap();
     }
+    {
+        let temp_file_name = "temp_file_test_values.ic";
+        save_to_icalc(model.workbook, temp_file_name);
+
+        let model = load_from_icalc(temp_file_name).unwrap();
+        assert_eq!(model.get_formatted_cell_value(0, 1, 1).unwrap(), "123.456");
+        assert_eq!(
+            model.get_formatted_cell_value(0, 2, 1).unwrap(),
+            "Hello world!"
+        );
+        assert_eq!(
+            model.get_formatted_cell_value(0, 3, 1).unwrap(),
+            "Hello world!"
+        );
+        assert_eq!(
+            model.get_formatted_cell_value(0, 4, 1).unwrap(),
+            "你好世界！"
+        );
+        assert_eq!(model.get_formatted_cell_value(0, 5, 1).unwrap(), "TRUE");
+        assert_eq!(model.get_formatted_cell_value(0, 6, 1).unwrap(), "FALSE");
+        assert_eq!(model.get_formatted_cell_value(0, 7, 1).unwrap(), "#VALUE!");
+
+        fs::remove_file(temp_file_name).unwrap();
+    }
+}
 
 #[test]
 fn test_formulas() {
@@ -67,7 +94,7 @@ fn test_formulas() {
     let temp_file_name = "temp_file_test_formulas.xlsx";
     save_to_xlsx(&model, temp_file_name).unwrap();
 
-    let model = load_model_from_xlsx(temp_file_name, "en", "UTC").unwrap();
+    let model = load_from_xlsx(temp_file_name, "en", "UTC").unwrap();
     assert_eq!(model.get_formatted_cell_value(0, 1, 2).unwrap(), "11");
     assert_eq!(model.get_formatted_cell_value(0, 2, 2).unwrap(), "13");
     assert_eq!(model.get_formatted_cell_value(0, 3, 2).unwrap(), "15");
@@ -89,7 +116,7 @@ fn test_sheets() {
     let temp_file_name = "temp_file_test_sheets.xlsx";
     save_to_xlsx(&model, temp_file_name).unwrap();
 
-    let model = load_model_from_xlsx(temp_file_name, "en", "UTC").unwrap();
+    let model = load_from_xlsx(temp_file_name, "en", "UTC").unwrap();
     assert_eq!(
         model.workbook.get_worksheet_names(),
         vec!["Sheet1", "With space", "Tango & Cash", "你好世界"]
@@ -118,7 +145,7 @@ fn test_named_styles() {
     let temp_file_name = "temp_file_test_named_styles.xlsx";
     save_to_xlsx(&model, temp_file_name).unwrap();
 
-    let model = load_model_from_xlsx(temp_file_name, "en", "UTC").unwrap();
+    let model = load_from_xlsx(temp_file_name, "en", "UTC").unwrap();
     assert!(model
         .workbook
         .styles

xlsx/src/import/mod.rs

@@ -106,7 +106,7 @@ fn load_xlsx_from_reader<R: Read + std::io::Seek>(
 // Public methods
 
 /// Imports a file from disk into an internal representation
-pub fn load_from_excel(file_name: &str, locale: &str, tz: &str) -> Result<Workbook, XlsxError> {
+fn load_from_excel(file_name: &str, locale: &str, tz: &str) -> Result<Workbook, XlsxError> {
     let file_path = std::path::Path::new(file_name);
     let file = fs::File::open(file_path)?;
     let reader = BufReader::new(file);
@@ -118,7 +118,14 @@ pub fn load_from_excel(file_name: &str, locale: &str, tz: &str) -> Result<Workbo
     load_xlsx_from_reader(name, reader, locale, tz)
 }
 
-pub fn load_model_from_xlsx(file_name: &str, locale: &str, tz: &str) -> Result<Model, XlsxError> {
+pub fn load_from_xlsx(file_name: &str, locale: &str, tz: &str) -> Result<Model, XlsxError> {
     let workbook = load_from_excel(file_name, locale, tz)?;
     Model::from_workbook(workbook).map_err(XlsxError::Workbook)
 }
+
+pub fn load_from_icalc(file_name: &str) -> Result<Model, XlsxError> {
+    let contents = fs::read(file_name)
+        .map_err(|e| XlsxError::IO(format!("Could not extract workbook name: {}", e)))?;
+    let workbook: Workbook = bitcode::decode(&contents).unwrap();
+    Model::from_workbook(workbook).map_err(XlsxError::Workbook)
+}

xlsx/src/import/worksheets.rs

@@ -5,9 +5,11 @@ use ironcalc_base::{
         parser::{stringify::to_rc_format, Parser},
         token::{get_error_by_english_name, Error},
         types::CellReferenceRC,
-        utils::column_to_number,
+        utils::{column_to_number, parse_reference_a1},
+    },
+    types::{
+        Cell, Col, Comment, DefinedName, Row, Selection, SheetData, SheetState, Table, Worksheet,
     },
-    types::{Cell, Col, Comment, DefinedName, Row, SheetData, SheetState, Table, Worksheet},
 };
 use roxmltree::Node;
 use thiserror::Error;
@@ -47,6 +49,50 @@ fn get_column_from_ref(s: &str) -> String {
     column.into_iter().collect()
 }
 
+fn parse_cell_reference(cell: &str) -> Result<(i32, i32), String> {
+    if let Some(r) = parse_reference_a1(cell) {
+        Ok((r.row, r.column))
+    } else {
+        Err(format!("Invalid cell reference: '{}'", cell))
+    }
+}
+
+fn parse_range(range: &str) -> Result<(i32, i32, i32, i32), String> {
+    let parts: Vec<&str> = range.split(':').collect();
+    if parts.len() == 1 {
+        if let Some(r) = parse_reference_a1(parts[0]) {
+            Ok((r.row, r.column, r.row, r.column))
+        } else {
+            Err(format!("Invalid range: '{}'", range))
+        }
+    } else if parts.len() == 2 {
+        match (parse_reference_a1(parts[0]), parse_reference_a1(parts[1])) {
+            (Some(left), Some(right)) => {
+                return Ok((left.row, left.column, right.row, right.column));
+            }
+            _ => return Err(format!("Invalid range: '{}'", range)),
+        }
+    } else {
+        return Err(format!("Invalid range: '{}'", range));
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use crate::import::worksheets::parse_range;
+
+    #[test]
+    fn test_parse_range() {
+        assert!(parse_range("3Aw").is_err());
+        assert_eq!(parse_range("A1"), Ok((1, 1, 1, 1)));
+        assert_eq!(parse_range("B5:C6"), Ok((5, 2, 6, 3)));
+        assert!(parse_range("A1:A2:A3").is_err());
+        assert!(parse_range("A1:34").is_err());
+        assert!(parse_range("A").is_err());
+        assert!(parse_range("12").is_err());
+    }
+}
+
 fn load_dimension(ws: Node) -> String {
     // <dimension ref="A1:O18"/>
     let application_nodes = ws
@@ -490,7 +536,29 @@ fn load_sheet_rels<R: Read + std::io::Seek>(
     Ok(comments)
 }
 
-fn get_frozen_rows_and_columns(ws: Node) -> (i32, i32) {
+struct SheetView {
+    is_selected: bool,
+    selected_row: i32,
+    selected_column: i32,
+    frozen_columns: i32,
+    frozen_rows: i32,
+    range: [i32; 4],
+}
+
+impl Default for SheetView {
+    fn default() -> Self {
+        Self {
+            is_selected: false,
+            selected_row: 1,
+            selected_column: 1,
+            frozen_rows: 0,
+            frozen_columns: 0,
+            range: [1, 1, 1, 1],
+        }
+    }
+}
+
+fn get_sheet_view(ws: Node) -> SheetView {
     // <sheetViews>
     //   <sheetView workbookViewId="0">
     //     <selection activeCell="E10" sqref="E10"/>
@@ -511,19 +579,20 @@ fn get_frozen_rows_and_columns(ws: Node) -> (i32, i32) {
     // bottomLeft, bottomRight, topLeft, topRight
 
     // NB: bottomLeft is used when only rows are frozen, etc
-    // Calc ignores all those.
+    // IronCalc ignores all those.
 
     let mut frozen_rows = 0;
     let mut frozen_columns = 0;
 
-    // In Calc there can only be one sheetView
+    // In IronCalc there can only be one sheetView
     let sheet_views = ws
         .children()
         .filter(|n| n.has_tag_name("sheetViews"))
         .collect::<Vec<Node>>();
 
+    // We are only expecting one `sheetViews` element. Otherwise return a default
     if sheet_views.len() != 1 {
-        return (0, 0);
+        return SheetView::default();
     }
 
     let sheet_view = sheet_views[0]
@@ -531,25 +600,64 @@ fn get_frozen_rows_and_columns(ws: Node) -> (i32, i32) {
         .filter(|n| n.has_tag_name("sheetView"))
         .collect::<Vec<Node>>();
 
+    // We are only expecting one `sheetView` element. Otherwise return a default
     if sheet_view.len() != 1 {
-        return (0, 0);
+        return SheetView::default();
     }
 
-    let pane = sheet_view[0]
+    let sheet_view = sheet_view[0];
+    let is_selected = sheet_view.attribute("tabSelected").unwrap_or("0") == "1";
+
+    let pane = sheet_view
         .children()
         .filter(|n| n.has_tag_name("pane"))
         .collect::<Vec<Node>>();
 
     // 18.18.53 ST_PaneState (Pane State)
     // frozen, frozenSplit, split
-    if pane.len() == 1 && pane[0].attribute("state").unwrap_or("split") == "frozen" {
+    if pane.len() == 1 {
+        if let Some("frozen") = pane[0].attribute("state") {
             // TODO: Should we assert that topLeft is consistent?
             // let top_left_cell = pane[0].attribute("topLeftCell").unwrap_or("A1").to_string();
 
             frozen_columns = get_number(pane[0], "xSplit");
             frozen_rows = get_number(pane[0], "ySplit");
         }
-    (frozen_rows, frozen_columns)
+    }
+    let selections = sheet_view
+        .children()
+        .filter(|n| n.has_tag_name("selection"))
+        .collect::<Vec<Node>>();
+
+    if let Some(selection) = selections.last() {
+        let active_cell = match selection.attribute("activeCell").map(parse_cell_reference) {
+            Some(Ok(s)) => Some(s),
+            _ => None,
+        };
+        let sqref = match selection.attribute("sqref").map(parse_range) {
+            Some(Ok(s)) => Some(s),
+            _ => None,
+        };
+
+        let (selected_row, selected_column, row1, column1, row2, column2) =
+            match (active_cell, sqref) {
+                (Some(cell), Some(range)) => (cell.0, cell.1, range.0, range.1, range.2, range.3),
+                (Some(cell), None) => (cell.0, cell.1, cell.0, cell.1, cell.0, cell.1),
+                (None, Some(range)) => (range.0, range.1, range.0, range.1, range.2, range.3),
+                _ => (1, 1, 1, 1, 1, 1),
+            };
+
+        SheetView {
+            frozen_rows,
+            frozen_columns,
+            selected_row,
+            selected_column,
+            is_selected,
+            range: [row1, column1, row2, column2],
+        }
+    } else {
+        SheetView::default()
+    }
 }
 
 pub(super) struct SheetSettings {
@@ -583,7 +691,7 @@ pub(super) fn load_sheet<R: Read + std::io::Seek>(
 
     let dimension = load_dimension(ws);
 
-    let (frozen_rows, frozen_columns) = get_frozen_rows_and_columns(ws);
+    let sheet_view = get_sheet_view(ws);
 
     let cols = load_columns(ws)?;
     let color = load_sheet_color(ws)?;
@@ -856,8 +964,14 @@ pub(super) fn load_sheet<R: Read + std::io::Seek>(
         color,
         merge_cells,
         comments: settings.comments,
-        frozen_rows,
-        frozen_columns,
+        frozen_rows: sheet_view.frozen_rows,
+        frozen_columns: sheet_view.frozen_columns,
+        selection: Selection {
+            is_selected: sheet_view.is_selected,
+            row: sheet_view.selected_row,
+            column: sheet_view.selected_column,
+            range: sheet_view.range,
+        },
     })
 }
 

xlsx/tests/test.rs

@@ -3,33 +3,61 @@ use uuid::Uuid;
 
 use ironcalc::compare::{test_file, test_load_and_saving};
 use ironcalc::export::save_to_xlsx;
-use ironcalc::import::{load_from_excel, load_model_from_xlsx};
-use ironcalc_base::types::{HorizontalAlignment, VerticalAlignment, Workbook};
+use ironcalc::import::{load_from_icalc, load_from_xlsx};
+use ironcalc_base::types::{HorizontalAlignment, VerticalAlignment};
 use ironcalc_base::Model;
 
 // This is a functional test.
 // We check that the output of example.xlsx is what we expect.
 #[test]
 fn test_example() {
-    let model = load_from_excel("tests/example.xlsx", "en", "UTC").unwrap();
-    assert_eq!(model.worksheets[0].frozen_rows, 0);
-    assert_eq!(model.worksheets[0].frozen_columns, 0);
-    let contents =
-        fs::read_to_string("tests/example.json").expect("Something went wrong reading the file");
-    let model2: Workbook = serde_json::from_str(&contents).unwrap();
-    let s = serde_json::to_string(&model).unwrap();
-    assert_eq!(model, model2, "{s}");
+    let model = load_from_xlsx("tests/example.xlsx", "en", "UTC").unwrap();
+    // We should use the API once it is in place
+    let workbook = model.workbook;
+    let ws = &workbook.worksheets;
+    let expected_names = vec![
+        ("Sheet1".to_string(), false),
+        ("Second".to_string(), false),
+        ("Sheet4".to_string(), false),
+        ("shared".to_string(), false),
+        ("Table".to_string(), false),
+        ("Sheet2".to_string(), false),
+        ("Created fourth".to_string(), false),
+        ("Frozen".to_string(), true),
+        ("Split".to_string(), false),
+        ("Hidden".to_string(), false),
+    ];
+    let names: Vec<(String, bool)> = ws
+        .iter()
+        .map(|s| (s.name.clone(), s.selection.is_selected))
+        .collect();
+
+    // One is not not imported and one is hidden
+    assert_eq!(expected_names, names);
+
+    // Test selection:
+    // First sheet (Sheet1)
+    // E13 and E13:N20
+    assert_eq!(ws[0].frozen_rows, 0);
+    assert_eq!(ws[0].frozen_columns, 0);
+    assert_eq!(ws[0].selection.row, 13);
+    assert_eq!(ws[0].selection.column, 5);
+    assert_eq!(ws[0].selection.range, [13, 5, 20, 14]);
+
+    let model2 = load_from_icalc("tests/example.ic").unwrap();
+    let s = bitcode::encode(&model2.workbook);
+    assert_eq!(workbook, model2.workbook, "{:?}", s);
 }
 
 #[test]
 fn test_save_to_xlsx() {
-    let mut model = load_model_from_xlsx("tests/example.xlsx", "en", "UTC").unwrap();
+    let mut model = load_from_xlsx("tests/example.xlsx", "en", "UTC").unwrap();
     model.evaluate();
     let temp_file_name = "temp_file_example.xlsx";
     // test can safe
     save_to_xlsx(&model, temp_file_name).unwrap();
     // test can open
-    let model = load_model_from_xlsx(temp_file_name, "en", "UTC").unwrap();
+    let model = load_from_xlsx(temp_file_name, "en", "UTC").unwrap();
     let metadata = &model.workbook.metadata;
     assert_eq!(metadata.application, "IronCalc Sheets");
     // FIXME: This will need to be updated once we fix versioning
@@ -41,7 +69,9 @@ fn test_save_to_xlsx() {
 #[test]
 fn test_freeze() {
     // freeze has 3 frozen columns and 2 frozen rows
-    let model = load_from_excel("tests/freeze.xlsx", "en", "UTC").unwrap();
+    let model = load_from_xlsx("tests/freeze.xlsx", "en", "UTC")
+        .unwrap()
+        .workbook;
     assert_eq!(model.worksheets[0].frozen_rows, 2);
     assert_eq!(model.worksheets[0].frozen_columns, 3);
 }
@@ -49,7 +79,9 @@ fn test_freeze() {
 #[test]
 fn test_split() {
     // We test that a workbook with split panes do not produce frozen rows and columns
-    let model = load_from_excel("tests/split.xlsx", "en", "UTC").unwrap();
+    let model = load_from_xlsx("tests/split.xlsx", "en", "UTC")
+        .unwrap()
+        .workbook;
     assert_eq!(model.worksheets[0].frozen_rows, 0);
     assert_eq!(model.worksheets[0].frozen_columns, 0);
 }
@@ -145,14 +177,14 @@ fn test_model_has_correct_styles(model: &Model) {
 
 #[test]
 fn test_simple_text() {
-    let model = load_model_from_xlsx("tests/basic_text.xlsx", "en", "UTC").unwrap();
+    let model = load_from_xlsx("tests/basic_text.xlsx", "en", "UTC").unwrap();
 
     test_model_has_correct_styles(&model);
 
     let temp_file_name = "temp_file_test_named_styles.xlsx";
     save_to_xlsx(&model, temp_file_name).unwrap();
 
-    let model = load_model_from_xlsx(temp_file_name, "en", "UTC").unwrap();
+    let model = load_from_xlsx(temp_file_name, "en", "UTC").unwrap();
     fs::remove_file(temp_file_name).unwrap();
     test_model_has_correct_styles(&model);
 }
@@ -160,7 +192,9 @@ fn test_simple_text() {
 #[test]
 fn test_defined_names_casing() {
     let test_file_path = "tests/calc_tests/defined_names_for_unit_test.xlsx";
-    let loaded_workbook = load_from_excel(test_file_path, "en", "UTC").unwrap();
+    let loaded_workbook = load_from_xlsx(test_file_path, "en", "UTC")
+        .unwrap()
+        .workbook;
     let mut model = Model::from_bytes(&bitcode::encode(&loaded_workbook)).unwrap();
 
     let (row, column) = (2, 13); // B13