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#!/usr/bin/env python |
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""" |
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Pandoc filter for changing font size in LaTeX |
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""" |
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from panflute import * |
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def latex_code(size): |
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return '\\' + size + ' ' |
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def get_correct_size(size): |
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if size in ['Huge', 'huge', 'LARGE', 'Large', 'large', 'normalsize', 'small', 'footnotesize', 'scriptsize', 'tiny']: |
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return size |
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else: |
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return 'normalsize' |
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def fontsize(elem, doc): |
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# Is it in the right format and is it a Span, Div, Code or CodeBlock? |
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if doc.format == 'latex' and elem.tag in ['Span', 'Div', 'Code', 'CodeBlock']: |
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# Is there a latex-fontsize attribute? |
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if 'latex-fontsize' in elem.attributes: |
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return add_latex(elem, latex_code(get_correct_size(elem.attributes['latex-fontsize']))) |
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else: |
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# Get the classes |
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classes = set(elem.classes) |
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# Loop on all fontsize definition |
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for definition in doc.defined: |
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# Are the classes correct? |
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if classes >= definition['classes']: |
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return add_latex(elem, definition['latex']) |
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def add_latex(elem, latex): |
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# Is it a Span? |
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if isinstance(elem, Span): |
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elem.content.insert(0, RawInline(latex, 'tex')) |
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# Is it a Div? |
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elif isinstance(elem, Div): |
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elem.content.insert(0, RawBlock('{' + latex, 'tex')) |
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elem.content.append(RawBlock('}', 'tex')) |
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# Is it a Code? |
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elif isinstance(elem, Code): |
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return [RawInline('{' + latex, 'tex'), elem, RawInline('}', 'tex')] |
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# Is it a CodeBlock? |
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elif isinstance(elem, CodeBlock): |
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return [RawBlock('{' + latex, 'tex'), elem, RawBlock('}', 'tex')] |
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def prepare(doc): |
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# Prepare the definitions |
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doc.defined = [] |
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# Get the meta data |
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meta = doc.get_metadata('pandoc-latex-fontsize') |
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if isinstance(meta, list): |
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# Loop on all definitions |
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for definition in meta: |
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# Verify the definition |
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if isinstance(definition, dict) and 'classes' in definition and isinstance(definition['classes'], list): |
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add_definition(doc.defined, definition) |
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def add_definition(defined, definition): |
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# Get the classes |
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classes = definition['classes'] |
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# Get the size |
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if 'size' in definition: |
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size = get_correct_size(definition['size']) |
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else: |
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size = 'normalsize' |
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# Add a definition |
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defined.append({'classes' : set(classes), 'latex': latex_code(size)}) |
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def main(doc = None): |
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run_filter(fontsize, prepare = prepare, doc = doc) |
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if __name__ == '__main__': |
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main() |
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chdemko /
pandoc-latex-fontsize
