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#!/usr/bin/env python |
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""" |
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Pandoc filter for adding complex figures. |
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""" |
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from panflute import ( |
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Caption, |
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Div, |
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Doc, |
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Element, |
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Figure, |
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Plain, |
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convert_text, |
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debug, |
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run_filter, |
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) |
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# pylint: disable=broad-exception-caught |
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def figure(elem: Element, doc: Doc) -> Figure | None: |
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""" |
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Transform a div element into a figure element. |
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Arguments |
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--------- |
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elem |
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The pandoc element |
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doc |
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The pandoc document |
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Returns |
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------- |
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Figure | None |
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Figure or None. |
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""" |
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if ( |
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doc.api_version >= (1, 23) |
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and isinstance(elem, Div) |
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and "figure" in elem.classes |
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and "caption" in elem.attributes |
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): |
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try: |
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caption = convert_text(elem.attributes["caption"]) |
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del elem.attributes["caption"] |
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elem.classes.remove("figure") |
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return Figure( |
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*elem.content, |
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caption=Caption(Plain(*caption[0].content)), |
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identifier=elem.identifier, |
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classes=elem.classes, |
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attributes=elem.attributes, |
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) |
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except Exception as error: # noqa: B902 |
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debug(f"[WARNING] pandoc-figure: {error}") |
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return None |
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def prepare(doc: Doc) -> None: |
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""" |
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Prepare the pandoc document. |
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Arguments |
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--------- |
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doc |
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The pandoc document |
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""" |
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if doc.api_version < (1, 23): |
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debug( |
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f"[WARNING] pandoc-figure: pandoc api version " |
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f"{'.'.join(str(value) for value in doc.api_version)} " |
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"is not compatible" |
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) |
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def main(doc: Doc | None = None) -> Doc: |
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""" |
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Convert the pandoc document. |
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Arguments |
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--------- |
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doc |
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The pandoc document |
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Returns |
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------- |
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Doc |
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The modified pandoc document |
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""" |
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return run_filter(figure, prepare=prepare, doc=doc) |
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if __name__ == "__main__": |
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main() |
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chdemko /
pandoc-figure
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