Files
odfstudio/schema
László Németh 7d6696757d tdf#159923 sw cui offapi xmloff: add custom word spacing
Add com::sun::star::text::ParaWordSpacing UNO
and loext:word-spacing ODF extensions to set
desired word spacing of a justified paragraph
relative to the width of the space character,
like DTP software do.

Add Justification section and "Word spacing"
spin box to the Text Align pane of paragraph settings.

This extends not only the smart justify interoperability
feature for custom shrinking (until 0%), but for custom
expansion, too, until 1000%, like Adobe InDesign do.

Note: this value hasn't been applied in the last
paragraph line, yet.

See also XSL-FO/CSS word-spacing and
commit 7d08767b89
"tdf#130088 tdf#119908 smart justify: fix DOCX line count + compat opt."

Change-Id: I06f771335135e4682a1d1abfc9a247dbe4bc6b66
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/184187
Reviewed-by: László Németh <nemeth@numbertext.org>
Tested-by: Jenkins
2025-04-15 22:40:12 +02:00
..
…

Schemas for Validating ODF Files

Schemas that can be used for validating ODF files

subdirs:

  • mathml2: W3C MathML 2.0 XML Schema (needed for Math embedded objects)
  • odf1.0, odf1.1, odf1.2: official OASIS RelaxNG schemas
  • odf1.3: current OASIS draft ODF 1.3 RelaxNG schema
  • libreoffice: draft ODF schema, with additional LO extensions

The extension schema in libreoffice/ is used by all unit tests if --with-export-validation is given, which is the default.

Notably this means that if you add a new feature to the ODF filters and you add the required unit test for the new feature, then most likely the test will fail with a complaint from the validator; in this case the schema needs to be updated to contain the new elements and attributes.

The extension schema uses the RelaxNG "include" feature to refer to the ODF schema; this means that it only contains those parts of the schema that actually need to be changed - this works well in many cases because the ODF schema is quite well structured with many named patterns, but unfortunately there are a few places where that isn't the case and large chunks needed to be copied to override them.

In the easy case, to add an attribute you just want to search for the corresponding element, which will have a "foo-attlist" named pattern, and then add another attribute like this:

<rng:define name="draw-enhanced-geometry-attlist" combine="interleave"> rng:optional <rng:attribute name="drawooo:sub-view-size"> <rng:ref name="string"/> </rng:attribute> </rng:optional> </rng:define>

Currently only the features that are actually exported in the unit tests have been added to the schema; there is still some work to do here to add everything; the crashtesting script also does ODF validation of all files and now also uses the custom schema.

Unfortunately it turned out that there are a lot of extensions already for which no proposal exists [1], and in many cases not even an entry on the Wiki [2], so clearly something like this extension schema is needed.

[1] git grep TODO schema/libreoffice

[2] https://wiki.documentfoundation.org/Development/ODF_Implementer_Notes/List_of_LibreOffice_ODF_Extensions