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150 lines
5.6 KiB
150 lines
5.6 KiB
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# :Author: Günter Milde <milde@users.sourceforge.net>
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# :Revision: $Revision: 8046 $
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# :Date: $Date: 2017-03-11 13:09:36 +0100 (Sa, 11. Mär 2017) $
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# :Copyright: © 2010 Günter Milde.
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# :License: Released under the terms of the `2-Clause BSD license`_, in short:
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#
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# Copying and distribution of this file, with or without modification,
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# are permitted in any medium without royalty provided the copyright
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# notice and this notice are preserved.
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# This file is offered as-is, without any warranty.
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#
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# .. _2-Clause BSD license: http://www.spdx.org/licenses/BSD-2-Clause
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"""
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XeLaTeX document tree Writer.
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A variant of Docutils' standard 'latex2e' writer producing LaTeX output
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suited for processing with the Unicode-aware TeX engines
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LuaTeX and XeTeX.
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"""
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__docformat__ = 'reStructuredText'
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import os
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import os.path
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import re
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import docutils
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from docutils import frontend, nodes, utils, writers, languages
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from docutils.writers import latex2e
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class Writer(latex2e.Writer):
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"""A writer for Unicode-aware LaTeX variants (XeTeX, LuaTeX)"""
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supported = ('lxtex', 'xetex','xelatex','luatex', 'lualatex')
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"""Formats this writer supports."""
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default_template = 'xelatex.tex'
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default_preamble = '\n'.join([
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r'% Linux Libertine (free, wide coverage, not only for Linux)',
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r'\setmainfont{Linux Libertine O}',
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r'\setsansfont{Linux Biolinum O}',
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r'\setmonofont[HyphenChar=None,Scale=MatchLowercase]{DejaVu Sans Mono}',
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])
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config_section = 'xetex writer'
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config_section_dependencies = ('writers', 'latex2e writer')
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settings_spec = frontend.filter_settings_spec(
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latex2e.Writer.settings_spec,
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'font_encoding',
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template=('Template file. Default: "%s".' % default_template,
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['--template'], {'default': default_template, 'metavar': '<file>'}),
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latex_preamble=('Customization by LaTeX code in the preamble. '
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'Default: select "Linux Libertine" fonts.',
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['--latex-preamble'],
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{'default': default_preamble}),
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)
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def __init__(self):
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latex2e.Writer.__init__(self)
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self.settings_defaults.update({'fontencoding': ''}) # use default (EU1 or EU2)
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self.translator_class = XeLaTeXTranslator
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class Babel(latex2e.Babel):
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"""Language specifics for XeTeX.
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Use `polyglossia` instead of `babel` and adapt settings.
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"""
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language_codes = latex2e.Babel.language_codes.copy()
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# Additionally supported or differently named languages:
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language_codes.update({
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# code Polyglossia-name comment
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'cop': 'coptic',
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'de': 'german', # new spelling (de_1996)
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'de-1901': 'ogerman', # old spelling
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'dv': 'divehi', # Maldivian
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'dsb': 'lsorbian',
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'el-polyton': 'polygreek',
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'fa': 'farsi',
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'grc': 'ancientgreek',
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'hsb': 'usorbian',
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'sh-Cyrl': 'serbian', # Serbo-Croatian, Cyrillic script
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'sh-Latn': 'croatian', # Serbo-Croatian, Latin script
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'sq': 'albanian',
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'sr': 'serbian', # Cyrillic script (sr-Cyrl)
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'th': 'thai',
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'vi': 'vietnamese',
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# zh-Latn: ??? # Chinese Pinyin
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})
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# normalize (downcase) keys
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language_codes = dict([(k.lower(), v) for (k,v) in list(language_codes.items())])
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# Languages without Polyglossia support:
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for key in ('af', # 'afrikaans',
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'de-AT', # 'naustrian',
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'de-AT-1901', # 'austrian',
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# TODO: use variant=... for English variants
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'en-CA', # 'canadian',
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'en-GB', # 'british',
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'en-NZ', # 'newzealand',
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'en-US', # 'american',
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'fr-CA', # 'canadien',
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'grc-ibycus', # 'ibycus', (Greek Ibycus encoding)
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'sr-Latn', # 'serbian script=latin'
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):
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del(language_codes[key.lower()])
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def __init__(self, language_code, reporter):
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self.language_code = language_code
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self.reporter = reporter
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self.language = self.language_name(language_code)
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self.otherlanguages = {}
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self.warn_msg = 'Language "%s" not supported by Polyglossia.'
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self.quote_index = 0
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self.quotes = ('"', '"')
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# language dependent configuration:
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# double quotes are "active" in some languages (e.g. German).
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self.literal_double_quote = '"' # TODO: use \textquotedbl ?
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def __call__(self):
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setup = [r'\usepackage{polyglossia}',
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r'\setdefaultlanguage{%s}' % self.language]
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if self.otherlanguages:
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setup.append(r'\setotherlanguages{%s}' %
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','.join(sorted(self.otherlanguages.keys())))
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return '\n'.join(setup)
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class XeLaTeXTranslator(latex2e.LaTeXTranslator):
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"""
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Generate code for LaTeX using Unicode fonts (XeLaTex or LuaLaTeX).
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See the docstring of docutils.writers._html_base.HTMLTranslator for
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notes on and examples of safe subclassing.
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"""
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def __init__(self, document):
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self.is_xetex = True # typeset with XeTeX or LuaTeX engine
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latex2e.LaTeXTranslator.__init__(self, document, Babel)
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if self.latex_encoding == 'utf8':
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self.requirements.pop('_inputenc', None)
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else:
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self.requirements['_inputenc'] = (r'\XeTeXinputencoding %s '
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% self.latex_encoding)
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