"""
sphinx.builders.latex
~~~~~~~~~~~~~~~~~~~~~
LaTeX builder.
:copyright: Copyright 2007-2019 by the Sphinx team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
import os
import warnings
from os import path
from docutils.frontend import OptionParser
import sphinx.builders.latex.nodes # NOQA # Workaround: import this before writer to avoid ImportError
from sphinx import package_dir, addnodes, highlighting
from sphinx.builders import Builder
from sphinx.builders.latex.util import ExtBabel
from sphinx.config import ENUM
from sphinx.deprecation import RemovedInSphinx40Warning
from sphinx.environment.adapters.asset import ImageAdapter
from sphinx.errors import NoUri, SphinxError
from sphinx.locale import _, __
from sphinx.util import texescape, logging, progress_message, status_iterator
from sphinx.util.console import bold, darkgreen # type: ignore
from sphinx.util.docutils import SphinxFileOutput, new_document
from sphinx.util.fileutil import copy_asset_file
from sphinx.util.i18n import format_date
from sphinx.util.nodes import inline_all_toctrees
from sphinx.util.osutil import SEP, make_filename_from_project
from sphinx.util.template import LaTeXRenderer
from sphinx.writers.latex import (
ADDITIONAL_SETTINGS, DEFAULT_SETTINGS, LaTeXWriter, LaTeXTranslator
)
# load docutils.nodes after loading sphinx.builders.latex.nodes
from docutils import nodes # NOQA
if False:
# For type annotation
from typing import Any, Dict, Iterable, List, Tuple, Union # NOQA
from sphinx.application import Sphinx # NOQA
from sphinx.config import Config # NOQA
XINDY_LANG_OPTIONS = {
# language codes from docutils.writers.latex2e.Babel
# ! xindy language names may differ from those in use by LaTeX/babel
# ! xindy does not support all Latin scripts as recognized by LaTeX/babel
# ! not all xindy-supported languages appear in Babel.language_codes
# cd /usr/local/texlive/2018/texmf-dist/xindy/modules/lang
# find . -name '*utf8.xdy'
# LATIN
'sq': '-L albanian -C utf8 ',
'hr': '-L croatian -C utf8 ',
'cs': '-L czech -C utf8 ',
'da': '-L danish -C utf8 ',
'nl': '-L dutch -C ij-as-ij-utf8 ',
'en': '-L english -C utf8 ',
'eo': '-L esperanto -C utf8 ',
'et': '-L estonian -C utf8 ',
'fi': '-L finnish -C utf8 ',
'fr': '-L french -C utf8 ',
'de': '-L german -C din5007-utf8 ',
'is': '-L icelandic -C utf8 ',
'it': '-L italian -C utf8 ',
'la': '-L latin -C utf8 ',
'lv': '-L latvian -C utf8 ',
'lt': '-L lithuanian -C utf8 ',
'dsb': '-L lower-sorbian -C utf8 ',
'ds': '-L lower-sorbian -C utf8 ', # trick, no conflict
'nb': '-L norwegian -C utf8 ',
'no': '-L norwegian -C utf8 ', # and what about nynorsk?
'pl': '-L polish -C utf8 ',
'pt': '-L portuguese -C utf8 ',
'ro': '-L romanian -C utf8 ',
'sk': '-L slovak -C small-utf8 ', # there is also slovak-large
'sl': '-L slovenian -C utf8 ',
'es': '-L spanish -C modern-utf8 ', # there is also spanish-traditional
'sv': '-L swedish -C utf8 ',
'tr': '-L turkish -C utf8 ',
'hsb': '-L upper-sorbian -C utf8 ',
'hs': '-L upper-sorbian -C utf8 ', # trick, no conflict
'vi': '-L vietnamese -C utf8 ',
# CYRILLIC
# for usage with pdflatex, needs also cyrLICRutf8.xdy module
'be': '-L belarusian -C utf8 ',
'bg': '-L bulgarian -C utf8 ',
'mk': '-L macedonian -C utf8 ',
'mn': '-L mongolian -C cyrillic-utf8 ',
'ru': '-L russian -C utf8 ',
'sr': '-L serbian -C utf8 ',
'sh-cyrl': '-L serbian -C utf8 ',
'sh': '-L serbian -C utf8 ', # trick, no conflict
'uk': '-L ukrainian -C utf8 ',
# GREEK
# can work only with xelatex/lualatex, not supported by texindy+pdflatex
'el': '-L greek -C utf8 ',
# FIXME, not compatible with [:2] slice but does Sphinx support Greek ?
'el-polyton': '-L greek -C polytonic-utf8 ',
}
XINDY_CYRILLIC_SCRIPTS = [
'be', 'bg', 'mk', 'mn', 'ru', 'sr', 'sh', 'uk',
]
logger = logging.getLogger(__name__)
[文档]class LaTeXBuilder(Builder):
"""
Builds LaTeX output to create PDF.
"""
name = 'latex'
format = 'latex'
epilog = __('The LaTeX files are in %(outdir)s.')
if os.name == 'posix':
epilog += __("\nRun 'make' in that directory to run these through "
"(pdf)latex\n"
"(use `make latexpdf' here to do that automatically).")
supported_image_types = ['application/pdf', 'image/png', 'image/jpeg']
supported_remote_images = False
default_translator_class = LaTeXTranslator
def init(self):
# type: () -> None
self.babel = None # type: ExtBabel
self.context = {} # type: Dict[str, Any]
self.docnames = [] # type: Iterable[str]
self.document_data = [] # type: List[Tuple[str, str, str, str, str, bool]]
self.usepackages = self.app.registry.latex_packages
texescape.init()
self.init_context()
self.init_babel()
def get_outdated_docs(self):
# type: () -> Union[str, List[str]]
return 'all documents' # for now
def get_target_uri(self, docname, typ=None):
# type: (str, str) -> str
if docname not in self.docnames:
raise NoUri
else:
return '%' + docname
def get_relative_uri(self, from_, to, typ=None):
# type: (str, str, str) -> str
# ignore source path
return self.get_target_uri(to, typ)
def init_document_data(self):
# type: () -> None
preliminary_document_data = [list(x) for x in self.config.latex_documents]
if not preliminary_document_data:
logger.warning(__('no "latex_documents" config value found; no documents '
'will be written'))
return
# assign subdirs to titles
self.titles = [] # type: List[Tuple[str, str]]
for entry in preliminary_document_data:
docname = entry[0]
if docname not in self.env.all_docs:
logger.warning(__('"latex_documents" config value references unknown '
'document %s'), docname)
continue
self.document_data.append(entry) # type: ignore
if docname.endswith(SEP + 'index'):
docname = docname[:-5]
self.titles.append((docname, entry[2]))
def init_context(self):
# type: () -> None
self.context = DEFAULT_SETTINGS.copy()
# Add special settings for latex_engine
self.context.update(ADDITIONAL_SETTINGS.get(self.config.latex_engine, {}))
# for xelatex+French, don't use polyglossia by default
if self.config.latex_engine == 'xelatex':
if self.config.language:
if self.config.language[:2] == 'fr':
self.context['polyglossia'] = ''
self.context['babel'] = r'\usepackage{babel}'
# Apply extension settings to context
self.context['packages'] = self.usepackages
# Apply user settings to context
self.context.update(self.config.latex_elements)
self.context['release'] = self.config.release
self.context['use_xindy'] = self.config.latex_use_xindy
if self.config.today:
self.context['date'] = self.config.today
else:
self.context['date'] = format_date(self.config.today_fmt or _('%b %d, %Y'),
language=self.config.language)
if self.config.latex_logo:
self.context['logofilename'] = path.basename(self.config.latex_logo)
# for compatibilities
self.context['indexname'] = _('Index')
if self.config.release:
# Show the release label only if release value exists
self.context['releasename'] = _('Release')
def init_babel(self):
# type: () -> None
self.babel = ExtBabel(self.config.language, not self.context['babel'])
if self.config.language and not self.babel.is_supported_language():
# emit warning if specified language is invalid
# (only emitting, nothing changed to processing)
logger.warning(__('no Babel option known for language %r'),
self.config.language)
def write_stylesheet(self):
# type: () -> None
highlighter = highlighting.PygmentsBridge('latex', self.config.pygments_style)
stylesheet = path.join(self.outdir, 'sphinxhighlight.sty')
with open(stylesheet, 'w') as f:
f.write('\\NeedsTeXFormat{LaTeX2e}[1995/12/01]\n')
f.write('\\ProvidesPackage{sphinxhighlight}'
'[2016/05/29 stylesheet for highlighting with pygments]\n\n')
f.write(highlighter.get_stylesheet())
def write(self, *ignored):
# type: (Any) -> None
docwriter = LaTeXWriter(self)
docsettings = OptionParser(
defaults=self.env.settings,
components=(docwriter,),
read_config_files=True).get_default_values() # type: Any
self.init_document_data()
self.write_stylesheet()
for entry in self.document_data:
docname, targetname, title, author, docclass = entry[:5]
toctree_only = False
if len(entry) > 5:
toctree_only = entry[5]
destination = SphinxFileOutput(destination_path=path.join(self.outdir, targetname),
encoding='utf-8', overwrite_if_changed=True)
with progress_message(__("processing %s") % targetname):
toctrees = self.env.get_doctree(docname).traverse(addnodes.toctree)
if toctrees:
if toctrees[0].get('maxdepth') > 0:
tocdepth = toctrees[0].get('maxdepth')
else:
tocdepth = None
else:
tocdepth = None
doctree = self.assemble_doctree(
docname, toctree_only,
appendices=((docclass != 'howto') and self.config.latex_appendices or []))
doctree['tocdepth'] = tocdepth
self.post_process_images(doctree)
self.update_doc_context(title, author)
with progress_message(__("writing")):
docsettings.author = author
docsettings.title = title
docsettings.contentsname = self.get_contentsname(docname)
docsettings.docname = docname
docsettings.docclass = docclass
doctree.settings = docsettings
docwriter.write(doctree, destination)
def get_contentsname(self, indexfile):
# type: (str) -> str
tree = self.env.get_doctree(indexfile)
contentsname = None
for toctree in tree.traverse(addnodes.toctree):
if 'caption' in toctree:
contentsname = toctree['caption']
break
return contentsname
def update_doc_context(self, title, author):
# type: (str, str) -> None
self.context['title'] = title
self.context['author'] = author
def assemble_doctree(self, indexfile, toctree_only, appendices):
# type: (str, bool, List[str]) -> nodes.document
self.docnames = set([indexfile] + appendices)
logger.info(darkgreen(indexfile) + " ", nonl=True)
tree = self.env.get_doctree(indexfile)
tree['docname'] = indexfile
if toctree_only:
# extract toctree nodes from the tree and put them in a
# fresh document
new_tree = new_document('<latex output>')
new_sect = nodes.section()
new_sect += nodes.title('<Set title in conf.py>',
'<Set title in conf.py>')
new_tree += new_sect
for node in tree.traverse(addnodes.toctree):
new_sect += node
tree = new_tree
largetree = inline_all_toctrees(self, self.docnames, indexfile, tree,
darkgreen, [indexfile])
largetree['docname'] = indexfile
for docname in appendices:
appendix = self.env.get_doctree(docname)
appendix['docname'] = docname
largetree.append(appendix)
logger.info('')
logger.info(__("resolving references..."))
self.env.resolve_references(largetree, indexfile, self)
# resolve :ref:s to distant tex files -- we can't add a cross-reference,
# but append the document name
for pendingnode in largetree.traverse(addnodes.pending_xref):
docname = pendingnode['refdocname']
sectname = pendingnode['refsectname']
newnodes = [nodes.emphasis(sectname, sectname)] # type: List[nodes.Node]
for subdir, title in self.titles:
if docname.startswith(subdir):
newnodes.append(nodes.Text(_(' (in '), _(' (in ')))
newnodes.append(nodes.emphasis(title, title))
newnodes.append(nodes.Text(')', ')'))
break
else:
pass
pendingnode.replace_self(newnodes)
return largetree
def apply_transforms(self, doctree):
# type: (nodes.document) -> None
warnings.warn('LaTeXBuilder.apply_transforms() is deprecated.',
RemovedInSphinx40Warning)
def finish(self):
# type: () -> None
self.copy_image_files()
self.write_message_catalog()
self.copy_support_files()
if self.config.latex_additional_files:
self.copy_latex_additional_files()
@progress_message(__('copying TeX support files'))
def copy_support_files(self):
# type: () -> None
"""copy TeX support files from texinputs."""
# configure usage of xindy (impacts Makefile and latexmkrc)
# FIXME: convert this rather to a confval with suitable default
# according to language ? but would require extra documentation
if self.config.language:
xindy_lang_option = \
XINDY_LANG_OPTIONS.get(self.config.language[:2],
'-L general -C utf8 ')
xindy_cyrillic = self.config.language[:2] in XINDY_CYRILLIC_SCRIPTS
else:
xindy_lang_option = '-L english -C utf8 '
xindy_cyrillic = False
context = {
'latex_engine': self.config.latex_engine,
'xindy_use': self.config.latex_use_xindy,
'xindy_lang_option': xindy_lang_option,
'xindy_cyrillic': xindy_cyrillic,
}
logger.info(bold(__('copying TeX support files...')))
staticdirname = path.join(package_dir, 'texinputs')
for filename in os.listdir(staticdirname):
if not filename.startswith('.'):
copy_asset_file(path.join(staticdirname, filename),
self.outdir, context=context)
# use pre-1.6.x Makefile for make latexpdf on Windows
if os.name == 'nt':
staticdirname = path.join(package_dir, 'texinputs_win')
copy_asset_file(path.join(staticdirname, 'Makefile_t'),
self.outdir, context=context)
# the logo is handled differently
if self.config.latex_logo:
if not path.isfile(path.join(self.confdir, self.config.latex_logo)):
raise SphinxError(__('logo file %r does not exist') % self.config.latex_logo)
else:
copy_asset_file(path.join(self.confdir, self.config.latex_logo), self.outdir)
@progress_message(__('copying additional files'))
def copy_latex_additional_files(self):
# type: () -> None
for filename in self.config.latex_additional_files:
logger.info(' ' + filename, nonl=True)
copy_asset_file(path.join(self.confdir, filename), self.outdir)
def copy_image_files(self):
# type: () -> None
if self.images:
stringify_func = ImageAdapter(self.app.env).get_original_image_uri
for src in status_iterator(self.images, __('copying images... '), "brown",
len(self.images), self.app.verbosity,
stringify_func=stringify_func):
dest = self.images[src]
try:
copy_asset_file(path.join(self.srcdir, src),
path.join(self.outdir, dest))
except Exception as err:
logger.warning(__('cannot copy image file %r: %s'),
path.join(self.srcdir, src), err)
def write_message_catalog(self):
# type: () -> None
formats = self.config.numfig_format
context = {
'addtocaptions': r'\@iden',
'figurename': formats.get('figure', '').split('%s', 1),
'tablename': formats.get('table', '').split('%s', 1),
'literalblockname': formats.get('code-block', '').split('%s', 1)
}
if self.context['babel'] or self.context['polyglossia']:
context['addtocaptions'] = r'\addto\captions%s' % self.babel.get_language()
filename = path.join(package_dir, 'templates', 'latex', 'sphinxmessages.sty_t')
copy_asset_file(filename, self.outdir, context=context, renderer=LaTeXRenderer())
def validate_config_values(app, config):
# type: (Sphinx, Config) -> None
for key in list(config.latex_elements):
if key not in DEFAULT_SETTINGS:
msg = __("Unknown configure key: latex_elements[%r]. ignored.")
logger.warning(msg % (key,))
config.latex_elements.pop(key)
def default_latex_engine(config):
# type: (Config) -> str
""" Better default latex_engine settings for specific languages. """
if config.language == 'ja':
return 'platex'
else:
return 'pdflatex'
def default_latex_docclass(config):
# type: (Config) -> Dict[str, str]
""" Better default latex_docclass settings for specific languages. """
if config.language == 'ja':
return {'manual': 'jsbook',
'howto': 'jreport'}
else:
return {}
def default_latex_use_xindy(config):
# type: (Config) -> bool
""" Better default latex_use_xindy settings for specific engines. """
return config.latex_engine in {'xelatex', 'lualatex'}
def default_latex_documents(config):
# type: (Config) -> List[Tuple[str, str, str, str, str]]
""" Better default latex_documents settings. """
return [(config.master_doc,
make_filename_from_project(config.project) + '.tex',
texescape.escape_abbr(texescape.escape(config.project)),
texescape.escape_abbr(texescape.escape(config.author)),
'manual')]
def setup(app):
# type: (Sphinx) -> Dict[str, Any]
app.setup_extension('sphinx.builders.latex.transforms')
app.add_builder(LaTeXBuilder)
app.connect('config-inited', validate_config_values)
app.add_config_value('latex_engine', default_latex_engine, None,
ENUM('pdflatex', 'xelatex', 'lualatex', 'platex'))
app.add_config_value('latex_documents', default_latex_documents, None)
app.add_config_value('latex_logo', None, None, [str])
app.add_config_value('latex_appendices', [], None)
app.add_config_value('latex_use_latex_multicolumn', False, None)
app.add_config_value('latex_use_xindy', default_latex_use_xindy, None)
app.add_config_value('latex_toplevel_sectioning', None, None,
ENUM(None, 'part', 'chapter', 'section'))
app.add_config_value('latex_domain_indices', True, None, [list])
app.add_config_value('latex_show_urls', 'no', None)
app.add_config_value('latex_show_pagerefs', False, None)
app.add_config_value('latex_elements', {}, None)
app.add_config_value('latex_additional_files', [], None)
app.add_config_value('latex_docclass', default_latex_docclass, None)
return {
'version': 'builtin',
'parallel_read_safe': True,
'parallel_write_safe': True,
}
