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Lua's warning system is plugged into pandoc's reporting architecture.
Warnings that are raised with the Lua `warn` function are now reported
together with other messages.
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Should fix the following error when running tests from Hackage tarball:
```
pandoc.mediabag: [WARNING] Could not fetch resource lua/module/sample.svg: replacing image with description
FAIL
fetch // populates media bag:
File lua/module/sample.svg not found in resource path
DEBUG:root:haskell-pandoc-lua-engine:
fill // populates media bag:
lua/module/pandoc-mediabag.lua:70:
expected values to be equal, got 'nil' and 'image/svg+xml'
```
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The value did not hold the actual file path for scripts in the *custom*
folder of the datadir.
Fixes: #8781
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* T.P.Format: export `formatFromFilePaths` [API change]
* Lua: add function `pandoc.format.from_path`
* Update lua-filters.md
* The old T.P.App.FormatHeuristics module has been removed.
This is an alternative to #8693.
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Ensures that objects with nested AST elements can be encoded as JSON.
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This only affects the name in the Lua-internal documentation. It is
still possible to load the modules via `require 'text'`, although this
is deprecated.
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The documentation in the Haskell sources has been updated.
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A metatable used during initialization was not properly removed from the
stack. Likewise, accessing the CommonState from Lua previously led to
the pollution of the Lua stack with a left-over value.
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The function returns the CPU time consumed by pandoc and can be used to
benchmark Lua computations.
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Closes: #8605
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All major AST elements now have `__tojson` metamethods that return the
JSON representation of an element. This allows to JSON-encode these
elements with libraries that respect the `__tojson` metamethod,
including dkjson.
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The PathTemplate type exported from Text.Pandoc.Chunks is now an
instance of the ToJSON and FromJSON classes.
Closes: #8607
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Otherwise sections are always numbered in the TOC,
even if `--number-sections` is not used.
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This simplifies the creation of custom readers and writers that are
based on built-in formats.
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Allows to write the complete mediabag or just a specific file to a given
directory.
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+ Re-use `toTocTree` in constructing `chunkedTOC`.
Previously we used an entirely different function toTOCTree'.
+ Improve `tocToList` so that it avoids empty lists of
items that are omitted because they are below the toc depth.
pandoc-lua-engine:
+ Fix structure tests in light of last change.
T.P.Writers.ChunkedHTML:
+ Reuse `tocToList` in `buildTOC`.
T.P.Writers.EPUB:
+ Adjust EPUB writer for Chunks changes.
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Adds support for table of contents and chunks handling. The function
`make_sections` has been given a friendlier interface and was moved to
the new module; the old `pandoc.utils.make_sections` has been
deprecated.
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It has been removed from pandoc-types.
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This fails to build because pandoc-lua-marshal still needs updating.
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Thanks and credit go to Aner Lucero, who laid the groundwork for this
feature in the 2021 GSoC project. He contributed many changes, including
modifications to the readers for HTML, JATS, and LaTeX, and to the HTML
and JATS writers.
Shared (Albert Krewinkel):
- The new function `figureDiv`, exported from `Text.Pandoc.Shared`,
offers a standardized way to convert a figure into a Div element.
Readers (Aner Lucero):
- HTML reader: `<figure>` elements are parsed as figures, with the
caption taken from the respective `<figcaption>` elements.
- JATS reader: The `<fig>` and `<caption>` elements are parsed into
figure elements, even if the contents is more complex.
- LaTeX reader: support for figures with non-image contents and for
subfigures.
- Markdown reader: paragraphs containing just an image are treated as
figures if the `implicit_figures` extension is enabled. The identifier
is used as the figure's identifier and the image description is also
used as figure caption; all other attributes are treated as belonging
to the image.
Writers (Aner Lucero, Albert Krewinkel):
- DokuWiki, Haddock, Jira, Man, MediaWiki, Ms, Muse, PPTX, RTF, TEI,
ZimWiki writers: Figures are rendered like Div elements.
- Asciidoc writer: The figure contents is unwrapped; each image in the
the figure becomes a separate figure.
- Classic custom writers: Figures are passed to the global function
`Figure(caption, contents, attr)`, where `caption` and `contents` are
strings and `attr` is a table of key-value pairs.
- ConTeXt writer: Figures are wrapped in a "placefigure" environment
with `\startplacefigure`/`\endplacefigure`, adding the features
caption and listing title as properties. Subfigures are place in a
single row with the `\startfloatcombination` environment.
- DocBook writer: Uses `mediaobject` elements, unless the figure contains
subfigures or tables, in which case the figure content is unwrapped.
- Docx writer: figures with multiple content blocks are rendered as
tables with style `FigureTable`; like before, single-image figures are
still output as paragraphs with style `Figure` or `Captioned Figure`,
depending on whether a caption is attached.
- DokuWiki writer: Caption and "alt-text" are no longer combined. The
alt text of a figure will now be lost in the conversion.
- FB2 writer: The figure caption is added as alt text to the images in
the figure; pre-existing alt texts are kept.
- ICML writer: Only single-image figures are supported. The contents of
figures with additional elements gets unwrapped.
- HTML writer: the alt text is no longer constructed from the caption,
as was the case with implicit figures. This reduces duplication, but
comes at the risk of images that are missing alt texts. Authors should
take care to provide alt texts for all images.
Some readers, most notably the Markdown reader with the
`implicit_figures` extension, add a caption that's identical to the
image description. The writer checks for this and adds an
`aria-hidden` attribute to the `<figcaption>` element in that case.
- JATS writer: The `<fig>` and `<caption>` elements are used write
figures.
- LaTeX writer: complex figures, e.g. with non-image contents and
subfigures, are supported. The `subfigure` template variable is set if
the document contains subfigures, triggering the conditional loading
of the *subcaption* package. Contants of figures that contain tables
are become unwrapped, as longtable environments are not allowed within
figures.
- Markdown writer: figures are output as implicit figures if possible,
via HTML if the `raw_html` extension is enabled, and as Div elements
otherwise.
- OpenDocument writer: A separate paragraph is generated for each block
element in a figure, each with style `FigureWithCaption`. Behavior for
single-image figures therefore remains unchanged.
- Org writer: Only the first element in a figure is given a caption;
additional block elements in the figure are appended without any
caption being added.
- RST writer: Single-image figures are supported as before; the contents
of more complex images become nested in a container of type `float`.
- Texinfo writer: Figures are rendered as float with type `figure`.
- Textile writer: Figures are rendered with the help of HTML elements.
- XWiki: Figures are placed in a group.
Co-authored-by: Aner Lucero <[email protected]>
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Rationale: we need this splitting level now not just in
EPUB but in chunked HTML.
`--epub-chapter-level` will still function as a deprecated
synonynm. `epub-chapter-level` will also continue to work in
defaults files, ande `epub_chapter_level` will still work for
Lua marshalling.
[API changes]
Text.Pandoc.App.Opt: remove `optEpubChapterLevel`, add
`optSplitLevel`.
Text.Pandoc.Options: remove `writerEpubChapterLevel`, add
`writerSplitLevel`.
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Closes: #8512
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The new type CustomComponents is exported from T.P.Scripting, and the
ScriptEngine fields are changed. Instead of separate fields for custom
readers and writers, we now have a single function that loads any number
of "components" from a script: these may be custom readers, custom
writers, templates for writers, or extension configs. (Note: it's
possible to have a custom reader and a custom writer for a format
together in the same file.)
Pandoc now checks the folder `custom` in the user's data directory for a
matching script if it can't find one in the local directory. Previously,
the `readers` and `writers` data directories were search for custom
readers and writers, respectively. Scripts in those directories must be
moved to the `custom` folder.
Custom readers used to implement a fallback behavior that allowed to
consume just a string value as input to the `Reader` function. This has
been removed, the first argument is now always a list of sources. Use
`tostring` on that argument to get a string.
Closes #8417.
Signed-off-by: Albert Krewinkel <[email protected]>
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This change also affects the `pandoc.utils.blocks_to_inlines` Lua
function.
Closes: #8499
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This allows to pass structured values as format specifiers to
`pandoc.write` and `pandoc.read`.
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Allow processing of CLI options in Lua.
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This Unicode char (U+2029) is intended as a semantic separator between
paragraphs; it is cleaner and less intrusive than the pilcrow sign that
we used before. This also changes the default `sep` value used in the
`pandoc.utils.blocks_to_inlines` Lua function.
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A new error `PandocNoTemplateError` (code 87) is thrown if a template is
required but cannot be found.
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