UPDATE: Dump of initial files
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Nicolás Hatcher
267
xlsx/src/export/worksheets.rs
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267
xlsx/src/export/worksheets.rs
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//! # A note on shared formulas
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//! Although both Excel and IronCalc uses shared formulas they are used in a slightly different way that cannot be mapped 1-1
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//! In IronCalc _all_ formulas are shared and there is a list of shared formulas much like there is a list of shared strings.
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//! In Excel the situation in more nuanced. A shared formula is shared amongst a rage of cells.
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//! The top left cell would be the "mother" cell that would contain the shared formula:
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//! <c r="F4" t="str">
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//! <f t="shared" ref="F4:F8" si="42">A4+C4</f>
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//! <v>123</v>
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//! </c>
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//! Cells in the range F4:F8 will then link to that formula like so:
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//! <c r="F6">
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//! <f t="shared" si="42"/>
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//! <v>1</v>
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//! </c>
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//! Formula in F6 would then be 'A6+C6'
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use std::collections::HashMap;
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use itertools::Itertools;
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use ironcalc_base::{
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expressions::{
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parser::{stringify::to_excel_string, Node},
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types::CellReferenceRC,
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utils::number_to_column,
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},
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types::{Cell, Worksheet},
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};
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use super::{escape::escape_xml, xml_constants::XML_DECLARATION};
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fn get_cell_style_attribute(s: i32) -> String {
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if s == 0 {
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"".to_string()
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} else {
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format!(" s=\"{}\"", s)
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}
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}
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fn get_formula_attribute(
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sheet_name: String,
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row: i32,
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column: i32,
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parsed_formula: &Node,
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) -> String {
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let cell_ref = CellReferenceRC {
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sheet: sheet_name,
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row,
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column,
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};
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let formula = &to_excel_string(parsed_formula, &cell_ref);
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escape_xml(formula).to_string()
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}
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pub(crate) fn get_worksheet_xml(
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worksheet: &Worksheet,
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parsed_formulas: &[Node],
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dimension: &str,
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) -> String {
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let mut sheet_data_str: Vec<String> = vec![];
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let mut cols_str: Vec<String> = vec![];
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for col in &worksheet.cols {
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// <col min="4" max="4" width="12" customWidth="1"/>
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let min = col.min;
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let max = col.max;
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let width = col.width;
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let custom_width = i32::from(col.custom_width);
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let column_style = match col.style {
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Some(s) => format!(" style=\"{s}\""),
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None => "".to_string(),
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};
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cols_str.push(format!(
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"<col min=\"{min}\" max=\"{max}\" width=\"{width}\" customWidth=\"{custom_width}\"{column_style}/>"
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));
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}
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// this is a bit of an overkill. A dictionary of the row styles by row_index
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let mut row_style_dict = HashMap::new();
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for row in &worksheet.rows {
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// {
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// "height": 13,
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// "r": 7,
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// "custom_format": false,
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// "custom_height": true,
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// "s": 0
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// "hidden": false,
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// },
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row_style_dict.insert(row.r, row.clone());
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}
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for (row_index, row_data) in worksheet.sheet_data.iter().sorted_by_key(|x| x.0) {
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let mut row_data_str: Vec<String> = vec![];
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for (column_index, cell) in row_data.iter().sorted_by_key(|x| x.0) {
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let column_name = number_to_column(*column_index).unwrap();
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let cell_name = format!("{column_name}{row_index}");
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match cell {
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Cell::EmptyCell { s } => {
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// they only hold the style
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let style = get_cell_style_attribute(*s);
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row_data_str.push(format!("<c r=\"{cell_name}\"{style}/>"));
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}
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Cell::BooleanCell { v, s } => {
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// <c r="A8" t="b" s="1">
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// <v>1</v>
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// </c>
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let b = i32::from(*v);
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let style = get_cell_style_attribute(*s);
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row_data_str.push(format!(
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"<c r=\"{cell_name}\" t=\"b\"{style}><v>{b}</v></c>"
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));
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}
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Cell::NumberCell { v, s } => {
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// Normally the type number is left out. Example:
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// <c r="C6" s="1">
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// <v>3</v>
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// </c>
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let style = get_cell_style_attribute(*s);
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row_data_str.push(format!("<c r=\"{cell_name}\"{style}><v>{v}</v></c>"));
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}
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Cell::ErrorCell { ei, s } => {
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let style = get_cell_style_attribute(*s);
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row_data_str.push(format!(
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"<c r=\"{cell_name}\" t=\"e\"{style}><v>{ei}</v></c>"
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));
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}
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Cell::SharedString { si, s } => {
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// Example:
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// <c r="A1" s="1" t="s">
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// <v>5</v>
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// </c>
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// Cell on A1 contains a string (t="s") of style="1". The string is the 6th in the list of shared strings
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let style = get_cell_style_attribute(*s);
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row_data_str.push(format!(
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"<c r=\"{cell_name}\" t=\"s\"{style}><v>{si}</v></c>"
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));
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}
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Cell::CellFormula { f: _, s: _ } => {
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panic!("Model needs to be evaluated before saving!");
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}
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Cell::CellFormulaBoolean { f, v, s } => {
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// <c r="A4" t="b" s="3">
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// <f>ISTEXT(A5)</f>
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// <v>1</v>
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// </c>
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let style = get_cell_style_attribute(*s);
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let formula = get_formula_attribute(
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worksheet.get_name(),
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*row_index,
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*column_index,
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&parsed_formulas[*f as usize],
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);
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let b = i32::from(*v);
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row_data_str.push(format!(
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"<c r=\"{cell_name}\" t=\"b\"{style}><f>{formula}</f><v>{b}</v></c>"
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));
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}
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Cell::CellFormulaNumber { f, v, s } => {
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// Note again type is skipped
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// <c r="C4" s="3">
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// <f>A5+C3</f>
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// <v>123</v>
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// </c>
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let formula = get_formula_attribute(
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worksheet.get_name(),
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*row_index,
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*column_index,
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&parsed_formulas[*f as usize],
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);
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let style = get_cell_style_attribute(*s);
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row_data_str.push(format!(
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"<c r=\"{cell_name}\"{style}><f>{formula}</f><v>{v}</v></c>"
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));
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}
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Cell::CellFormulaString { f, v, s } => {
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// <c r="C6" t="str" s="5">
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// <f>CONCATENATE(A1, A2)</f>
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// <v>Hello world!</v>
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// </c>
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let formula = get_formula_attribute(
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worksheet.get_name(),
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*row_index,
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*column_index,
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&parsed_formulas[*f as usize],
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);
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let style = get_cell_style_attribute(*s);
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row_data_str.push(format!(
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"<c r=\"{cell_name}\" t=\"str\"{style}><f>{formula}</f><v>{v}</v></c>"
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));
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}
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Cell::CellFormulaError {
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f,
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ei,
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s,
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o: _,
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m: _,
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} => {
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// <c r="C6" t="e" s="4">
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// <f>A1/A3<f/>
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// <v>#DIV/0!</v>
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// </c>
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let formula = get_formula_attribute(
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worksheet.get_name(),
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*row_index,
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*column_index,
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&parsed_formulas[*f as usize],
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);
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let style = get_cell_style_attribute(*s);
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row_data_str.push(format!(
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"<c r=\"{cell_name}\" t=\"e\"{style}><f>{formula}</f><v>{ei}</v></c>"
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));
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}
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}
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}
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let row_style_str = match row_style_dict.get(row_index) {
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Some(row_style) => {
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let hidden_str = if row_style.hidden {
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r#" hidden="1""#
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} else {
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""
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};
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format!(
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r#" s="{}" ht="{}" customHeight="{}" customFormat="{}"{}"#,
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row_style.s,
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row_style.height,
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i32::from(row_style.custom_height),
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i32::from(row_style.custom_format),
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hidden_str,
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)
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}
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None => "".to_string(),
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};
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sheet_data_str.push(format!(
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"<row r=\"{row_index}\"{row_style_str}>{}</row>",
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row_data_str.join("")
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))
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}
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let sheet_data = sheet_data_str.join("");
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let cols = cols_str.join("");
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let cols = if cols.is_empty() {
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"".to_string()
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} else {
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format!("<cols>{cols}</cols>")
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};
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format!(
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"{XML_DECLARATION}
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<worksheet \
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xmlns=\"http://schemas.openxmlformats.org/spreadsheetml/2006/main\" \
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xmlns:r=\"http://schemas.openxmlformats.org/officeDocument/2006/relationships\">\
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<dimension ref=\"{dimension}\"/>\
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<sheetViews>\
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<sheetView workbookViewId=\"0\">\
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<selection activeCell=\"A1\" sqref=\"A1\"/>\
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</sheetView>\
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</sheetViews>\
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{cols}\
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<sheetData>\
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{sheet_data}\
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</sheetData>\
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</worksheet>"
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)
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}
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