Crate spreadsheet_ods

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Expand description

Implements reading and writing of ODS Files.

use chrono::NaiveDate;
use icu_locid::locale;
use spreadsheet_ods::color::Rgb;
use spreadsheet_ods::formula;
use spreadsheet_ods::mm;
use spreadsheet_ods::style::units::{Border, Length, TextRelief};
use spreadsheet_ods::style::CellStyle;
use spreadsheet_ods::{format, OdsResult};
use spreadsheet_ods::{Sheet, Value, WorkBook};
use std::fs;

  fs::create_dir_all("test_out").expect("create_dir");

  let path = std::path::Path::new("test_out/lib_example.ods");
  let mut wb = if path.exists() {
    spreadsheet_ods::read_ods(path).unwrap()
  } else {
    WorkBook::new(locale!("en_US"))
  };

  if wb.num_sheets() == 0 {
    let mut sheet = Sheet::new("one");
    sheet.set_value(0, 0, true);
    wb.push_sheet(sheet);
  }

  let sheet = wb.sheet(0);
  let _n = sheet.value(0, 0).as_f64_or(0f64);
  if let Value::Boolean(v) = sheet.value(1, 1) {
    if *v {
      println!("was true");
    }
  }

  if wb.num_sheets() == 1 {
    wb.push_sheet(Sheet::new("two"));
  }

  let date_format = format::create_date_dmy_format("date_format");
  let date_format = wb.add_datetime_format(date_format);

  let mut date_style = CellStyle::new("nice_date_style", &date_format);
  date_style.set_font_bold();
  date_style.set_font_relief(TextRelief::Engraved);
  date_style.set_border(mm!(0.2), Border::Dashed, Rgb::new(192, 72, 72));
  let date_style_ref = wb.add_cellstyle(date_style);

  let sheet = wb.sheet_mut(1);
  sheet.set_value(0, 0, 21.4f32);
  sheet.set_value(0, 1, "foo");
  sheet.set_styled_value(0, 2, NaiveDate::from_ymd_opt(2020, 03, 01), &date_style_ref);
  sheet.set_formula(0, 3, format!("of:={}+1", formula::fcellref(0, 0)));

  let mut sheet = Sheet::new("sample");
  sheet.set_value(5, 5, "sample");
  wb.push_sheet(sheet);

  spreadsheet_ods::write_ods(&mut wb, "test_out/lib_example.ods").expect("write_ods")

This does not cover the entire ODS spec.

What is supported:

  • Spread-sheets

    • Handles all datatypes
      • Uses time::Duration
      • Uses chrono::NaiveDate and NaiveDateTime
    • Column/Row/Cell styles
    • Formulas
      • Only as strings, but support functions for cell/range references.
    • Row/Column spans
    • Header rows/columns, print ranges
    • Formatted text as xml text.

  • Formulas

    • Only as strings.
    • Utilities for cell/range references.

  • Styles

    • Default styles per data type.
    • Preserves all style attributes.
    • Table, row, column, cell, paragraph and text styles.
    • Stylemaps (basic support)
    • Support for setting most style attributes.

  • Value formatting

    • The whole set is available.
    • Utility functions for common formats.
    • Basic localization support.

  • Content validation

  • Fonts

    • Preserves all font attributes.
    • Basic support for setting this stuff.

  • Page layouts

    • Style attributes
    • Header/footer content as XML text.

  • Cell/range references

    • Parsing and formatting

What might be problematic:

  • The text content of each cell is not formatted according to the given ValueFormat, but instead is a simple to_string() of the data type. This data is not necessary to read the contents correctly. LibreOffice seems to ignore this completely and display everything correctly.

Next on the TO-DO list:

  • Calculation settings.
  • Named expressions.

There are a number of features that are not parsed to a structure, but which are stored as a XML. This might work as long as these features don’t refer to data that is no longer valid after some modification. But they are written back to the ods.

Anyway those are:

  • tracked-changes
  • variable-decls
  • sequence-decls
  • user-field-decls
  • dde-connection-decls
  • calculation-settings
  • label-ranges
  • named-expressions
  • database-ranges
  • data-pilot-tables
  • consolidation
  • dde-links
  • table:desc
  • table-source
  • dde-source
  • scenario
  • forms
  • shapes
  • calcext:conditional-formats

When storing a previously read ODS file, all the contained files are copied to the new file. The files content.xml, styles.xml, settings.xml and manifest.xml are written from the data.

Re-exports§

Modules§

  • cell
    Detail structs for a Cell.
  • condition
    Defines conditional expressions that are used for cell-validation and conditional styles via style-maps.
  • defaultstyles
    Creates default formats for a new Workbook.
  • draw
    Draw.
  • format
    Defines one ValueFormatXX per ValueType for textual formatting of those values.
  • formula
    For now defines functions to create cell references for formulas.
  • manifest
    The manifest for all files contained in the zip.
  • metadata
    Document metadata.
  • refs
    Defines types for cell references.
  • sheet
    Detail structs for a Sheet.
  • style
    Styles define a large number of attributes.
  • text
    Text is stored as a simple String whenever possible. When there is a more complex structure, a TextTag is constructed which mirrors the Xml tree structure.
  • validation
    Content validation.
  • workbook
    Detail structs for the WorkBook.
  • xlink
    Enums for XLink.
  • xmltree
    Defines an XML-Tree. This is used for parts of the spreadsheet that are not destructured in detail, but simply passed through. With a little bit of luck there is still some meaning left after modifying the rest.

Macros§

  • cell
    Macro for cell-references. This one returns the reference itself. For use in formulas use fcell, which returns the correct string for formulas.
  • cm
    Centimeters.
  • currency
    currency value
  • deg
    deg angles. 360°
  • em
    Length depending on font size.
  • fcell
    Macro for cell-references. Returns as string with the cell-reference in a format suitable for formulas.
  • formula
    Simple macro for formula.
  • grad
    grad angles. 400°
  • inch
    Inches.
  • mm
    Millimeters.
  • pc
    Pica. 12/72“
  • percent
    currency value
  • pt
    Point. 1/72“
  • rad
    radians angle.

Structs§

  • CellContent
    A copy of the relevant data for a spreadsheet cell.
  • CellContentRef
    Holds references to the combined content of a cell. A temporary to hold the data when iterating over a sheet.
  • OdsOptions
    Read options for ods-files.
  • Sheet
    One sheet of the spreadsheet.
  • WorkBook
    Book is the main structure for the Spreadsheet.

Enums§

Functions§

Type Aliases§