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.
Update tests.
Reason: it turns out that the native output generated by
pretty-simple isn't always readable by the native reader.
According to https://github.com/cdepillabout/pretty-simple/issues/99
it is not a design goal of the library that the rendered values
be readable using 'read'. This makes it unsuitable for our
purposes.
pretty-show is a bit slower and it uses 4-space indents
(non-configurable), but it doesn't have this serious drawback.
Previously we used our own homespun formatting. But this
produces over-long lines that aren't ideal for diffs in tests.
Easier to use something off-the-shelf and standard.
Closes#7580.
Performance is slower by about a factor of 10, but this isn't
really a problem because native isn't suitable as a serialization
format. (For serialization you should use json, because the reader
is so much faster than native.)
John MacFarlane