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#!/usr/bin/env python |
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""" |
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Pandoc filter for changing color in LaTeX |
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""" |
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from panflute import run_filter, debug, Span, Div, RawInline, RawBlock, MetaInlines |
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def x11colors(): |
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# See https://www.w3.org/TR/css-color-3/#svg-color |
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return { |
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'aliceblue': 'F0F8FF', |
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'antiquewhite': 'FAEBD7', |
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'aqua': '00FFFF', |
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'aquamarine': '7FFFD4', |
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'azure': 'F0FFFF', |
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'beige': 'F5F5DC', |
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'bisque': 'FFE4C4', |
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'black': '000000', |
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'blanchedalmond': 'FFEBCD', |
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'blue': '0000FF', |
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'blueviolet': '8A2BE2', |
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'brown': 'A52A2A', |
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'burlywood': 'DEB887', |
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'cadetblue': '5F9EA0', |
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'chartreuse': '7FFF00', |
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'chocolate': 'D2691E', |
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'coral': 'FF7F50', |
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'cornflowerblue': '6495ED', |
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'cornsilk': 'FFF8DC', |
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'crimson': 'DC143C', |
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'cyan': '00FFFF', |
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'darkblue': '00008B', |
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'darkcyan': '008B8B', |
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'darkgoldenrod': 'B8860B', |
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'darkgray': 'A9A9A9', |
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'darkgreen': '006400', |
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'darkgrey': 'A9A9A9', |
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'darkkhaki': 'BDB76B', |
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'darkmagenta': '8B008B', |
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'darkolivegreen': '556B2F', |
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'darkorange': 'FF8C00', |
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'darkorchid': '9932CC', |
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'darkred': '8B0000', |
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'darksalmon': 'E9967A', |
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'darkseagreen': '8FBC8F', |
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'darkslateblue': '483D8B', |
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'darkslategray': '2F4F4F', |
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'darkslategrey': '2F4F4F', |
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'darkturquoise': '00CED1', |
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'darkviolet': '9400D3', |
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'deeppink': 'FF1493', |
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'deepskyblue': '00BFFF', |
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'dimgray': '696969', |
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'dimgrey': '696969', |
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'dodgerblue': '1E90FF', |
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'firebrick': 'B22222', |
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'floralwhite': 'FFFAF0', |
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'forestgreen': '228B22', |
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'fuchsia': 'FF00FF', |
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'gainsboro': 'DCDCDC', |
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'ghostwhite': 'F8F8FF', |
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'gold': 'FFD700', |
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'goldenrod': 'DAA520', |
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'gray': '808080', |
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'green': '008000', |
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'greenyellow': 'ADFF2F', |
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'grey': '808080', |
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'honeydew': 'F0FFF0', |
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'hotpink': 'FF69B4', |
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'indianred': 'CD5C5C', |
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'indigo': '4B0082', |
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'ivory': 'FFFFF0', |
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'khaki': 'F0E68C', |
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'lavender': 'E6E6FA', |
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'lavenderblush': 'FFF0F5', |
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'lawngreen': '7CFC00', |
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'lemonchiffon': 'FFFACD', |
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'lightblue': 'ADD8E6', |
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'lightcoral': 'F08080', |
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'lightcyan': 'E0FFFF', |
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'lightgoldenrodyellow': 'FAFAD2', |
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'lightgray': 'D3D3D3', |
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'lightgreen': '90EE90', |
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'lightgrey': 'D3D3D3', |
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'lightpink': 'FFB6C1', |
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'lightsalmon': 'FFA07A', |
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'lightseagreen': '20B2AA', |
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'lightskyblue': '87CEFA', |
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'lightslategray': '778899', |
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'lightslategrey': '778899', |
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'lightsteelblue': 'B0C4DE', |
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'lightyellow': 'FFFFE0', |
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'lime': '00FF00', |
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'limegreen': '32CD32', |
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'linen': 'FAF0E6', |
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'magenta': 'FF00FF', |
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'maroon': '800000', |
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'mediumaquamarine': '66CDAA', |
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'mediumblue': '0000CD', |
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'mediumorchid': 'BA55D3', |
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'mediumpurple': '9370DB', |
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'mediumseagreen': '3CB371', |
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'mediumslateblue': '7B68EE', |
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'mediumspringgreen': '00FA9A', |
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'mediumturquoise': '48D1CC', |
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'mediumvioletred': 'C71585', |
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'midnightblue': '191970', |
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'mintcream': 'F5FFFA', |
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'mistyrose': 'FFE4E1', |
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'moccasin': 'FFE4B5', |
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'navajowhite': 'FFDEAD', |
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'navy': '000080', |
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'oldlace': 'FDF5E6', |
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'olive': '808000', |
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'olivedrab': '6B8E23', |
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'orange': 'FFA500', |
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'orangered': 'FF4500', |
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'orchid': 'DA70D6', |
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'palegoldenrod': 'EEE8AA', |
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'palegreen': '98FB98', |
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'paleturquoise': 'AFEEEE', |
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'palevioletred': 'DB7093', |
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'papayawhip': 'FFEFD5', |
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'peachpuff': 'FFDAB9', |
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'peru': 'CD853F', |
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'pink': 'FFC0CB', |
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'plum': 'DDA0DD', |
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'powderblue': 'B0E0E6', |
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'purple': '800080', |
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'red': 'FF0000', |
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'rosybrown': 'BC8F8F', |
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'royalblue': '4169E1', |
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'saddlebrown': '8B4513', |
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'salmon': 'FA8072', |
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'sandybrown': 'F4A460', |
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'seagreen': '2E8B57', |
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'seashell': 'FFF5EE', |
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'sienna': 'A0522D', |
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'silver': 'C0C0C0', |
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'skyblue': '87CEEB', |
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'slateblue': '6A5ACD', |
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'slategray': '708090', |
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'slategrey': '708090', |
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'snow': 'FFFAFA', |
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'springgreen': '00FF7F', |
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'steelblue': '4682B4', |
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'tan': 'D2B48C', |
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'teal': '008080', |
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'thistle': 'D8BFD8', |
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'tomato': 'FF6347', |
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'turquoise': '40E0D0', |
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'violet': 'EE82EE', |
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'wheat': 'F5DEB3', |
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'white': 'FFFFFF', |
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'whitesmoke': 'F5F5F5', |
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'yellow': 'FFFF00', |
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'yellowgreen': '9ACD32' |
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} |
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def latex_code(color): |
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return '\\color{' + color + '} ' |
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def get_correct_color(color): |
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if color in x11colors(): |
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return color |
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else: |
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debug('[WARNING] pandoc-latex-color: ' + color + ' is not a correct X11 color; using black') |
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return 'black' |
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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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def color(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']: |
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# Is there a latex-color attribute? |
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if 'latex-color' in elem.attributes: |
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return add_latex(elem, latex_code(get_correct_color(elem.attributes['latex-color']))) |
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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 color 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 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-color') |
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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 color |
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if 'color' in definition: |
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color = get_correct_color(definition['color']) |
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else: |
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debug('[WARNING] pandoc-latex-color: color is not defined; using black') |
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color = 'black' |
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# Add a definition |
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defined.append({'classes' : set(classes), 'latex': latex_code(color)}) |
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def finalize(doc): |
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# Add header-includes if necessary |
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if 'header-includes' not in doc.metadata: |
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doc.metadata['header-includes'] = [] |
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# Add usefull LaTexPackage |
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doc.metadata['header-includes'].append(MetaInlines(RawInline('\\usepackage{xcolor}', 'tex'))) |
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def main(doc = None): |
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return run_filter(color, prepare=prepare, finalize=finalize, doc=doc) |
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if __name__ == '__main__': |
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main() |
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chdemko /
pandoc-latex-color
