Previously the OpenDocument writer emitted a fresh automatic style
(L1..Ln, P1..Pn, T1..Tn) for nearly every list, list-item paragraph,
block quote, preformatted block, and inline text style. This produced
large ODT files, made `--reference-doc` customization ineffective (the
user's predefined styles were never referenced), and gave each list its
own indentation independent of any containing block quote.
This commit teaches the writer to reference the predefined styles that
LibreOffice ships and that pandoc's reference.odt now exports:
- Bullet lists use `List_20_1`; ordered lists with default start and
decimal format use `Numbering_20_1`. Non-default ordered lists
generate a single named override style (`Pandoc_Numbering_N`)
memoised by (ListNumberStyle, ListNumberDelim); a non-default start
value with the default format is expressed via `text:start-value`
on the `text:list` element instead of a new style.
- List-item paragraphs use `List_20_Bullet[_Tight]` and
`List_20_Number[_Tight]`. The Tight variants are pandoc-specific
(zero top/bottom margin) and are injected into the user's
reference.odt if missing, just like the Skylighting token styles.
- Block quotes use the predefined `Quotations` paragraph style
directly. Nested block quotes use a single automatic style that
inherits from Quotations and only adds extra margin-left, so a list
inside a block quote now inherits its container's indent (#2747).
- Preformatted blocks use `Preformatted_20_Text` directly.
- Emphasis, Strong, Strikeout, Subscript, Superscript and Code spans
use the predefined `Emphasis`, `Strong_20_Emphasis`, `Strikeout`,
`Subscript`, `Superscript` and `Source_20_Text` text styles.
- `paraStyle`/`paraStyleFromParent` no longer emit a wrapper automatic
style when its only attribute would be `parent-style-name`; the
parent name is returned directly.
Closes#9136.
Closes#5086.
Closes#2747.
Closes#3426.
Closes#7336.
Co-authored by: Claude Opus 4.7.
These styles were going into an office:styles element in content.xml,
but this is invalid. Instead they must go in styles.xml. See #9287.
The variable `highlighting-styles` no longer has any effect on
the default opendocument template, and highlighting styles are
not included in opendocument output.
The only element in meta for which data/templates/default.opendocument
allows block element content appears to be "abstract", which is already
filtered out of meta' at this point, so simply convert all blocks to
linebreak-separated inlines.
Fixes: #8256
John MacFarlane