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rtf.py
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""" pygments.formatters.rtf ~~~~~~~~~~~~~~~~~~~~~~~ A formatter that generates RTF files. :copyright: Copyright 2006-2023 by the Pygments team, see AUTHORS. :license: BSD, see LICENSE for details. """ from pygments.formatter import Formatter from pygments.util import get_int_opt, surrogatepair __all__ = ['RtfFormatter'] class RtfFormatter(Formatter): """ Format tokens as RTF markup. This formatter automatically outputs full RTF documents with color information and other useful stuff. Perfect for Copy and Paste into Microsoft(R) Word(R) documents. Please note that ``encoding`` and ``outencoding`` options are ignored. The RTF format is ASCII natively, but handles unicode characters correctly thanks to escape sequences. .. versionadded:: 0.6 Additional options accepted: `style` The style to use, can be a string or a Style subclass (default: ``'default'``). `fontface` The used font family, for example ``Bitstream Vera Sans``. Defaults to some generic font which is supposed to have fixed width. `fontsize` Size of the font used. Size is specified in half points. The default is 24 half-points, giving a size 12 font. .. versionadded:: 2.0 """ name = 'RTF' aliases = ['rtf'] filenames = ['*.rtf'] def __init__(self, **options): r""" Additional options accepted: ``fontface`` Name of the font used. Could for example be ``'Courier New'`` to further specify the default which is ``'\fmodern'``. The RTF specification claims that ``\fmodern`` are "Fixed-pitch serif and sans serif fonts". Hope every RTF implementation thinks the same about modern... """ Formatter.__init__(self, **options) self.fontface = options.get('fontface') or '' self.fontsize = get_int_opt(options, 'fontsize', 0) def _escape(self, text): return text.replace('\\', '\\\\') \ .replace('{', '\\{') \ .replace('}', '\\}') def _escape_text(self, text): # empty strings, should give a small performance improvement if not text: return '' # escape text text = self._escape(text) buf = [] for c in text: cn = ord(c) if cn < (2**7): # ASCII character buf.append(str(c)) elif (2**7) <= cn < (2**16): # single unicode escape sequence buf.append('{\\u%d}' % cn) elif (2**16) <= cn: # RTF limits unicode to 16 bits. # Force surrogate pairs buf.append('{\\u%d}{\\u%d}' % surrogatepair(cn)) return ''.join(buf).replace('\n', '\\par\n') def format_unencoded(self, tokensource, outfile): # rtf 1.8 header outfile.write('{\\rtf1\\ansi\\uc0\\deff0' '{\\fonttbl{\\f0\\fmodern\\fprq1\\fcharset0%s;}}' '{\\colortbl;' % (self.fontface and ' ' + self._escape(self.fontface) or '')) # convert colors and save them in a mapping to access them later. color_mapping = {} offset = 1 for _, style in self.style: for color in style['color'], style['bgcolor'], style['border']: if color and color not in color_mapping: color_mapping[color] = offset outfile.write('\\red%d\\green%d\\blue%d;' % ( int(color[0:2], 16), int(color[2:4], 16), int(color[4:6], 16) )) offset += 1 outfile.write('}\\f0 ') if self.fontsize: outfile.write('\\fs%d' % self.fontsize) # highlight stream for ttype, value in tokensource: while not self.style.styles_token(ttype) and ttype.parent: ttype = ttype.parent style = self.style.style_for_token(ttype) buf = [] if style['bgcolor']: buf.append('\\cb%d' % color_mapping[style['bgcolor']]) if style['color']: buf.append('\\cf%d' % color_mapping[style['color']]) if style['bold']: buf.append('\\b') if style['italic']: buf.append('\\i') if style['underline']: buf.append('\\ul') if style['border']: buf.append('\\chbrdr\\chcfpat%d' % color_mapping[style['border']]) start = ''.join(buf) if start: outfile.write('{%s ' % start) outfile.write(self._escape_text(value)) if start: outfile.write('}') outfile.write('}')