Google Git
Sign in
android / platform / tools / idea / 9b5d02ac8c92b1e71523cc15cb3d168d57fbd898 / . / python / helpers / docutils / writers / latex2e / __init__.py
blob: c8ef32ef6879914947466c8a53d4763c285c256d [file] [log] [blame]
# -*- coding: utf8 -*-
# $Id: __init__.py 6385 2010-08-13 12:17:01Z milde $
# Author: Engelbert Gruber <grubert@users.sourceforge.net>
# Copyright: This module has been placed in the public domain.
"""LaTeX2e document tree Writer."""
__docformat__ = 'reStructuredText'
# code contributions from several people included, thanks to all.
# some named: David Abrahams, Julien Letessier, Lele Gaifax, and others.
#
# convention deactivate code by two # i.e. ##.
import sys
import os
import time
import re
import string
from docutils import frontend, nodes, languages, writers, utils, io
from docutils.transforms import writer_aux
# compatibility module for Python 2.3
if not hasattr(string, 'Template'):
import docutils._string_template_compat
string.Template = docutils._string_template_compat.Template
class Writer(writers.Writer):
supported = ('latex','latex2e')
"""Formats this writer supports."""
default_template = 'default.tex'
default_template_path = os.path.dirname(__file__)
default_preamble = '\n'.join([r'% PDF Standard Fonts',
r'\usepackage{mathptmx} % Times',
r'\usepackage[scaled=.90]{helvet}',
r'\usepackage{courier}'])
settings_spec = (
'LaTeX-Specific Options',
None,
(('Specify documentclass. Default is "article".',
['--documentclass'],
{'default': 'article', }),
('Specify document options. Multiple options can be given, '
'separated by commas. Default is "a4paper".',
['--documentoptions'],
{'default': 'a4paper', }),
('Footnotes with numbers/symbols by Docutils. (default)',
['--docutils-footnotes'],
{'default': True, 'action': 'store_true',
'validator': frontend.validate_boolean}),
('Alias for --docutils-footnotes (deprecated)',
['--use-latex-footnotes'],
{'action': 'store_true',
'validator': frontend.validate_boolean}),
('Use figure floats for footnote text (deprecated)',
['--figure-footnotes'],
{'action': 'store_true',
'validator': frontend.validate_boolean}),
('Format for footnote references: one of "superscript" or '
'"brackets". Default is "superscript".',
['--footnote-references'],
{'choices': ['superscript', 'brackets'], 'default': 'superscript',
'metavar': '<format>',
'overrides': 'trim_footnote_reference_space'}),
('Use \\cite command for citations. ',
['--use-latex-citations'],
{'default': 0, 'action': 'store_true',
'validator': frontend.validate_boolean}),
('Use figure floats for citations '
'(might get mixed with real figures). (default)',
['--figure-citations'],
{'dest': 'use_latex_citations', 'action': 'store_false',
'validator': frontend.validate_boolean}),
('Format for block quote attributions: one of "dash" (em-dash '
'prefix), "parentheses"/"parens", or "none". Default is "dash".',
['--attribution'],
{'choices': ['dash', 'parentheses', 'parens', 'none'],
'default': 'dash', 'metavar': '<format>'}),
('Specify LaTeX packages/stylesheets. '
' A style is referenced with \\usepackage if extension is '
'".sty" or omitted and with \\input else. '
' Overrides previous --stylesheet and --stylesheet-path settings.',
['--stylesheet'],
{'default': '', 'metavar': '<file>',
'overrides': 'stylesheet_path'}),
('Like --stylesheet, but the path is rewritten '
'relative to the output file. ',
['--stylesheet-path'],
{'metavar': '<file>', 'overrides': 'stylesheet'}),
('Link to the stylesheet(s) in the output file. (default)',
['--link-stylesheet'],
{'dest': 'embed_stylesheet', 'action': 'store_false'}),
('Embed the stylesheet(s) in the output file. '
'Stylesheets must be accessible during processing. ',
['--embed-stylesheet'],
{'default': 0, 'action': 'store_true',
'validator': frontend.validate_boolean}),
('Customization by LaTeX code in the preamble. '
'Default: select PDF standard fonts (Times, Helvetica, Courier).',
['--latex-preamble'],
{'default': default_preamble}),
('Specify the template file. Default: "%s".' % default_template,
['--template'],
{'default': default_template, 'metavar': '<file>'}),
('Table of contents by LaTeX. (default) ',
['--use-latex-toc'],
{'default': 1, 'action': 'store_true',
'validator': frontend.validate_boolean}),
('Table of contents by Docutils (without page numbers). ',
['--use-docutils-toc'],
{'dest': 'use_latex_toc', 'action': 'store_false',
'validator': frontend.validate_boolean}),
('Add parts on top of the section hierarchy.',
['--use-part-section'],
{'default': 0, 'action': 'store_true',
'validator': frontend.validate_boolean}),
('Attach author and date to the document info table. (default) ',
['--use-docutils-docinfo'],
{'dest': 'use_latex_docinfo', 'action': 'store_false',
'validator': frontend.validate_boolean}),
('Attach author and date to the document title.',
['--use-latex-docinfo'],
{'default': 0, 'action': 'store_true',
'validator': frontend.validate_boolean}),
("Typeset abstract as topic. (default)",
['--topic-abstract'],
{'dest': 'use_latex_abstract', 'action': 'store_false',
'validator': frontend.validate_boolean}),
("Use LaTeX abstract environment for the document's abstract. ",
['--use-latex-abstract'],
{'default': 0, 'action': 'store_true',
'validator': frontend.validate_boolean}),
('Color of any hyperlinks embedded in text '
'(default: "blue", "0" to disable).',
['--hyperlink-color'], {'default': 'blue'}),
('Enable compound enumerators for nested enumerated lists '
'(e.g. "1.2.a.ii"). Default: disabled.',
['--compound-enumerators'],
{'default': None, 'action': 'store_true',
'validator': frontend.validate_boolean}),
('Disable compound enumerators for nested enumerated lists. '
'This is the default.',
['--no-compound-enumerators'],
{'action': 'store_false', 'dest': 'compound_enumerators'}),
('Enable section ("." subsection ...) prefixes for compound '
'enumerators. This has no effect without --compound-enumerators.'
'Default: disabled.',
['--section-prefix-for-enumerators'],
{'default': None, 'action': 'store_true',
'validator': frontend.validate_boolean}),
('Disable section prefixes for compound enumerators. '
'This is the default.',
['--no-section-prefix-for-enumerators'],
{'action': 'store_false', 'dest': 'section_prefix_for_enumerators'}),
('Set the separator between section number and enumerator '
'for compound enumerated lists. Default is "-".',
['--section-enumerator-separator'],
{'default': '-', 'metavar': '<char>'}),
('When possibile, use the specified environment for literal-blocks. '
'Default is quoting of whitespace and special chars.',
['--literal-block-env'],
{'default': ''}),
('When possibile, use verbatim for literal-blocks. '
'Compatibility alias for "--literal-block-env=verbatim".',
['--use-verbatim-when-possible'],
{'default': 0, 'action': 'store_true',
'validator': frontend.validate_boolean}),
('Table style. "standard" with horizontal and vertical lines, '
'"booktabs" (LaTeX booktabs style) only horizontal lines '
'above and below the table and below the header or "borderless". '
'Default: "standard"',
['--table-style'],
{'choices': ['standard', 'booktabs','nolines', 'borderless'],
'default': 'standard',
'metavar': '<format>'}),
('LaTeX graphicx package option. '
'Possible values are "dvips", "pdftex". "auto" includes LaTeX code '
'to use "pdftex" if processing with pdf(la)tex and dvips otherwise. '
'Default is no option.',
['--graphicx-option'],
{'default': ''}),
('LaTeX font encoding. '
'Possible values are "", "T1" (default), "OT1", "LGR,T1" or '
'any other combination of options to the `fontenc` package. ',
['--font-encoding'],
{'default': 'T1'}),
('Per default the latex-writer puts the reference title into '
'hyperreferences. Specify "ref*" or "pageref*" to get the section '
'number or the page number.',
['--reference-label'],
{'default': None, }),
('Specify style and database for bibtex, for example '
'"--use-bibtex=mystyle,mydb1,mydb2".',
['--use-bibtex'],
{'default': None, }),
),)
settings_defaults = {'sectnum_depth': 0 # updated by SectNum transform
}
relative_path_settings = ('stylesheet_path',)
config_section = 'latex2e writer'
config_section_dependencies = ('writers',)
head_parts = ('head_prefix', 'requirements', 'latex_preamble',
'stylesheet', 'fallbacks', 'pdfsetup', 'title', 'subtitle')
visitor_attributes = head_parts + ('body_pre_docinfo', 'docinfo',
'dedication', 'abstract', 'body')
output = None
"""Final translated form of `document`."""
def __init__(self):
writers.Writer.__init__(self)
self.translator_class = LaTeXTranslator
# Override parent method to add latex-specific transforms
def get_transforms(self):
# call the parent class' method
transform_list = writers.Writer.get_transforms(self)
# print transform_list
# Convert specific admonitions to generic one
transform_list.append(writer_aux.Admonitions)
# TODO: footnote collection transform
# transform_list.append(footnotes.collect)
return transform_list
def translate(self):
visitor = self.translator_class(self.document)
self.document.walkabout(visitor)
# copy parts
for part in self.visitor_attributes:
setattr(self, part, getattr(visitor, part))
# get template string from file
try:
file = open(self.document.settings.template, 'rb')
except IOError:
file = open(os.path.join(os.path.dirname(__file__),
self.document.settings.template), 'rb')
template = string.Template(unicode(file.read(), 'utf-8'))
file.close()
# fill template
self.assemble_parts() # create dictionary of parts
self.output = template.substitute(self.parts)
def assemble_parts(self):
"""Assemble the `self.parts` dictionary of output fragments."""
writers.Writer.assemble_parts(self)
for part in self.visitor_attributes:
lines = getattr(self, part)
if part in self.head_parts:
if lines:
lines.append('') # to get a trailing newline
self.parts[part] = '\n'.join(lines)
else:
# body contains inline elements, so join without newline
self.parts[part] = ''.join(lines)
class Babel(object):
"""Language specifics for LaTeX."""
# country code by a.schlock.
# partly manually converted from iso and babel stuff, dialects and some
_ISO639_TO_BABEL = {
'no': 'norsk', #XXX added by hand ( forget about nynorsk?)
'gd': 'scottish', #XXX added by hand
'hu': 'magyar', #XXX added by hand
'pt': 'portuguese',#XXX added by hand
'sl': 'slovenian',
'af': 'afrikaans',
'bg': 'bulgarian',
'br': 'breton',
'ca': 'catalan',
'cs': 'czech',
'cy': 'welsh',
'da': 'danish',
'fr': 'french',
# french, francais, canadien, acadian
'de': 'ngerman', #XXX rather than german
# ngerman, naustrian, german, germanb, austrian
'el': 'greek',
'en': 'english',
# english, USenglish, american, UKenglish, british, canadian
'eo': 'esperanto',
'es': 'spanish',
'et': 'estonian',
'eu': 'basque',
'fi': 'finnish',
'ga': 'irish',
'gl': 'galician',
'he': 'hebrew',
'hr': 'croatian',
'hu': 'hungarian',
'is': 'icelandic',
'it': 'italian',
'la': 'latin',
'nl': 'dutch',
'pl': 'polish',
'pt': 'portuguese',
'ro': 'romanian',
'ru': 'russian',
'sk': 'slovak',
'sr': 'serbian',
'sv': 'swedish',
'tr': 'turkish',
'uk': 'ukrainian'
}
def __init__(self, lang):
self.language = lang
self.quote_index = 0
self.quotes = ('``', "''")
self.setup = '' # language dependent configuration code
# double quotes are "active" in some languages (e.g. German).
# TODO: use \textquotedbl in OT1 font encoding?
self.literal_double_quote = u'"'
if self.language.startswith('de'):
self.quotes = (r'\glqq{}', r'\grqq{}')
self.literal_double_quote = ur'\dq{}'
if self.language.startswith('it'):
self.literal_double_quote = ur'{\char`\"}'
if self.language.startswith('es'):
# reset tilde ~ to the original binding (nobreakspace):
self.setup = ('\n'
r'\addto\shorthandsspanish{\spanishdeactivate{."~<>}}')
def next_quote(self):
q = self.quotes[self.quote_index]
self.quote_index = (self.quote_index+1) % 2
return q
def quote_quotes(self,text):
t = None
for part in text.split('"'):
if t == None:
t = part
else:
t += self.next_quote() + part
return t
def get_language(self):
lang = self.language.split('_')[0] # filter dialects
return self._ISO639_TO_BABEL.get(lang, "")
# Building blocks for the latex preamble
# --------------------------------------
class SortableDict(dict):
"""Dictionary with additional sorting methods
Tip: use key starting with with '_' for sorting before small letters
and with '~' for sorting after small letters.
"""
def sortedkeys(self):
"""Return sorted list of keys"""
keys = self.keys()
keys.sort()
return keys
def sortedvalues(self):
"""Return list of values sorted by keys"""
return [self[key] for key in self.sortedkeys()]
# PreambleCmds
# `````````````
# A container for LaTeX code snippets that can be
# inserted into the preamble if required in the document.
#
# .. The package 'makecmds' would enable shorter definitions using the
# \providelength and \provideenvironment commands.
# However, it is pretty non-standard (texlive-latex-extra).
class PreambleCmds(object):
"""Building blocks for the latex preamble."""
PreambleCmds.abstract = r"""
% abstract title
\providecommand*{\DUtitleabstract}[1]{\centerline{\textbf{#1}}}"""
PreambleCmds.admonition = r"""
% admonition (specially marked topic)
\providecommand{\DUadmonition}[2][class-arg]{%
% try \DUadmonition#1{#2}:
\ifcsname DUadmonition#1\endcsname%
\csname DUadmonition#1\endcsname{#2}%
\else
\begin{center}
\fbox{\parbox{0.9\textwidth}{#2}}
\end{center}
\fi
}"""
## PreambleCmds.caption = r"""% configure caption layout
## \usepackage{caption}
## \captionsetup{singlelinecheck=false}% no exceptions for one-liners"""
PreambleCmds.color = r"""\usepackage{color}"""
PreambleCmds.docinfo = r"""
% docinfo (width of docinfo table)
\DUprovidelength{\DUdocinfowidth}{0.9\textwidth}"""
# PreambleCmds.docinfo._depends = 'providelength'
PreambleCmds.embedded_package_wrapper = r"""\makeatletter
%% embedded stylesheet: %s
%s
\makeatother"""
PreambleCmds.dedication = r"""
% dedication topic
\providecommand{\DUtopicdedication}[1]{\begin{center}#1\end{center}}"""
PreambleCmds.error = r"""
% error admonition title
\providecommand*{\DUtitleerror}[1]{\DUtitle{\color{red}#1}}"""
# PreambleCmds.errortitle._depends = 'color'
PreambleCmds.fieldlist = r"""
% fieldlist environment
\ifthenelse{\isundefined{\DUfieldlist}}{
\newenvironment{DUfieldlist}%
{\quote\description}
{\enddescription\endquote}
}{}"""
PreambleCmds.float_settings = r"""\usepackage{float} % float configuration
\floatplacement{figure}{H} % place figures here definitely"""
PreambleCmds.footnotes = r"""% numeric or symbol footnotes with hyperlinks
\providecommand*{\DUfootnotemark}[3]{%
\raisebox{1em}{\hypertarget{#1}{}}%
\hyperlink{#2}{\textsuperscript{#3}}%
}
\providecommand{\DUfootnotetext}[4]{%
\begingroup%
\renewcommand{\thefootnote}{%
\protect\raisebox{1em}{\protect\hypertarget{#1}{}}%
\protect\hyperlink{#2}{#3}}%
\footnotetext{#4}%
\endgroup%
}"""
PreambleCmds.footnote_floats = r"""% settings for footnotes as floats:
\setlength{\floatsep}{0.5em}
\setlength{\textfloatsep}{\fill}
\addtolength{\textfloatsep}{3em}
\renewcommand{\textfraction}{0.5}
\renewcommand{\topfraction}{0.5}
\renewcommand{\bottomfraction}{0.5}
\setcounter{totalnumber}{50}
\setcounter{topnumber}{50}
\setcounter{bottomnumber}{50}"""
PreambleCmds.graphicx_auto = r"""% Check output format
\ifx\pdftexversion\undefined
\usepackage{graphicx}
\else
\usepackage[pdftex]{graphicx}
\fi'))"""
PreambleCmds.inline = r"""
% inline markup (custom roles)
% \DUrole{#1}{#2} tries \DUrole#1{#2}
\providecommand*{\DUrole}[2]{%
\ifcsname DUrole#1\endcsname%
\csname DUrole#1\endcsname{#2}%
\else% backwards compatibility: try \docutilsrole#1{#2}
\ifcsname docutilsrole#1\endcsname%
\csname docutilsrole#1\endcsname{#2}%
\else%
#2%
\fi%
\fi%
}"""
PreambleCmds.legend = r"""
% legend environment
\ifthenelse{\isundefined{\DUlegend}}{
\newenvironment{DUlegend}{\small}{}
}{}"""
PreambleCmds.lineblock = r"""
% lineblock environment
\DUprovidelength{\DUlineblockindent}{2.5em}
\ifthenelse{\isundefined{\DUlineblock}}{
\newenvironment{DUlineblock}[1]{%
\list{}{\setlength{\partopsep}{\parskip}
\addtolength{\partopsep}{\baselineskip}
\setlength{\topsep}{0pt}
\setlength{\itemsep}{0.15\baselineskip}
\setlength{\parsep}{0pt}
\setlength{\leftmargin}{#1}}
\raggedright
}
{\endlist}
}{}"""
# PreambleCmds.lineblock._depends = 'providelength'
PreambleCmds.linking = r"""
%% hyperlinks:
\ifthenelse{\isundefined{\hypersetup}}{
\usepackage[unicode,colorlinks=%s,linkcolor=%s,urlcolor=%s]{hyperref}
\urlstyle{same} %% normal text font (alternatives: tt, rm, sf)
}{}"""
PreambleCmds.minitoc = r"""%% local table of contents
\usepackage{minitoc}"""
PreambleCmds.optionlist = r"""
% optionlist environment
\providecommand*{\DUoptionlistlabel}[1]{\bf #1 \hfill}
\DUprovidelength{\DUoptionlistindent}{3cm}
\ifthenelse{\isundefined{\DUoptionlist}}{
\newenvironment{DUoptionlist}{%
\list{}{\setlength{\labelwidth}{\DUoptionlistindent}
\setlength{\rightmargin}{1cm}
\setlength{\leftmargin}{\rightmargin}
\addtolength{\leftmargin}{\labelwidth}
\addtolength{\leftmargin}{\labelsep}
\renewcommand{\makelabel}{\DUoptionlistlabel}}
}
{\endlist}
}{}"""
# PreambleCmds.optionlist._depends = 'providelength'
PreambleCmds.providelength = r"""
% providelength (provide a length variable and set default, if it is new)
\providecommand*{\DUprovidelength}[2]{
\ifthenelse{\isundefined{#1}}{\newlength{#1}\setlength{#1}{#2}}{}
}"""
PreambleCmds.rubric = r"""
% rubric (informal heading)
\providecommand*{\DUrubric}[2][class-arg]{%
\subsubsection*{\centering\textit{\textmd{#2}}}}"""
PreambleCmds.sidebar = r"""
% sidebar (text outside the main text flow)
\providecommand{\DUsidebar}[2][class-arg]{%
\begin{center}
\colorbox[gray]{0.80}{\parbox{0.9\textwidth}{#2}}
\end{center}
}"""
PreambleCmds.subtitle = r"""
% subtitle (for topic/sidebar)
\providecommand*{\DUsubtitle}[2][class-arg]{\par\emph{#2}\smallskip}"""
PreambleCmds.table = r"""\usepackage{longtable}
\usepackage{array}
\setlength{\extrarowheight}{2pt}
\newlength{\DUtablewidth} % internal use in tables"""
# Options [force,almostfull] prevent spurious error messages, see
# de.comp.text.tex/2005-12/msg01855
PreambleCmds.textcomp = """\
\\usepackage{textcomp} % text symbol macros"""
PreambleCmds.documenttitle = r"""
%% Document title
\title{%s}
\author{%s}
\date{%s}
\maketitle
"""
PreambleCmds.titlereference = r"""
% titlereference role
\providecommand*{\DUroletitlereference}[1]{\textsl{#1}}"""
PreambleCmds.title = r"""
% title for topics, admonitions and sidebar
\providecommand*{\DUtitle}[2][class-arg]{%
% call \DUtitle#1{#2} if it exists:
\ifcsname DUtitle#1\endcsname%
\csname DUtitle#1\endcsname{#2}%
\else
\smallskip\noindent\textbf{#2}\smallskip%
\fi
}"""
PreambleCmds.topic = r"""
% topic (quote with heading)
\providecommand{\DUtopic}[2][class-arg]{%
\ifcsname DUtopic#1\endcsname%
\csname DUtopic#1\endcsname{#2}%
\else
\begin{quote}#2\end{quote}
\fi
}"""
PreambleCmds.transition = r"""
% transition (break, fancybreak, anonymous section)
\providecommand*{\DUtransition}[1][class-arg]{%
\hspace*{\fill}\hrulefill\hspace*{\fill}
\vskip 0.5\baselineskip
}"""
class DocumentClass(object):
"""Details of a LaTeX document class."""
def __init__(self, document_class, with_part=False):
self.document_class = document_class
self._with_part = with_part
self.sections = ['section', 'subsection', 'subsubsection',
'paragraph', 'subparagraph']
if self.document_class in ('book', 'memoir', 'report',
'scrbook', 'scrreprt'):
self.sections.insert(0, 'chapter')
if self._with_part:
self.sections.insert(0, 'part')
def section(self, level):
"""Return the LaTeX section name for section `level`.
The name depends on the specific document class.
Level is 1,2,3..., as level 0 is the title.
"""
if level <= len(self.sections):
return self.sections[level-1]
else:
return self.sections[-1]
class Table(object):
"""Manage a table while traversing.
Maybe change to a mixin defining the visit/departs, but then
class Table internal variables are in the Translator.
Table style might be
:standard: horizontal and vertical lines
:booktabs: only horizontal lines (requires "booktabs" LaTeX package)
:borderless: no borders around table cells
:nolines: alias for borderless
"""
def __init__(self,translator,latex_type,table_style):
self._translator = translator
self._latex_type = latex_type
self._table_style = table_style
self._open = 0
# miscellaneous attributes
self._attrs = {}
self._col_width = []
self._rowspan = []
self.stubs = []
self._in_thead = 0
def open(self):
self._open = 1
self._col_specs = []
self.caption = []
self._attrs = {}
self._in_head = 0 # maybe context with search
def close(self):
self._open = 0
self._col_specs = None
self.caption = []
self._attrs = {}
self.stubs = []
def is_open(self):
return self._open
def set_table_style(self, table_style):
if not table_style in ('standard','booktabs','borderless','nolines'):
return
self._table_style = table_style
def get_latex_type(self):
return self._latex_type
def set(self,attr,value):
self._attrs[attr] = value
def get(self,attr):
if attr in self._attrs:
return self._attrs[attr]
return None
def get_vertical_bar(self):
if self._table_style == 'standard':
return '|'
return ''
# horizontal lines are drawn below a row,
def get_opening(self):
if self._latex_type == 'longtable':
# otherwise longtable might move before paragraph and subparagraph
prefix = '\\leavevmode\n'
else:
prefix = ''
prefix += '\setlength{\DUtablewidth}{\linewidth}'
return '%s\n\\begin{%s}[c]' % (prefix, self._latex_type)
def get_closing(self):
line = ''
if self._table_style == 'booktabs':
line = '\\bottomrule\n'
elif self._table_style == 'standard':
lines = '\\hline\n'
return '%s\\end{%s}' % (line,self._latex_type)
def visit_colspec(self, node):
self._col_specs.append(node)
# "stubs" list is an attribute of the tgroup element:
self.stubs.append(node.attributes.get('stub'))
def get_colspecs(self):
"""Return column specification for longtable.
Assumes reST line length being 80 characters.
Table width is hairy.
=== ===
ABC DEF
=== ===
usually gets to narrow, therefore we add 1 (fiddlefactor).
"""
width = 80
total_width = 0.0
# first see if we get too wide.
for node in self._col_specs:
colwidth = float(node['colwidth']+1) / width
total_width += colwidth
self._col_width = []
self._rowspan = []
# donot make it full linewidth
factor = 0.93
if total_width > 1.0:
factor /= total_width
bar = self.get_vertical_bar()
latex_table_spec = ''
for node in self._col_specs:
colwidth = factor * float(node['colwidth']+1) / width
self._col_width.append(colwidth+0.005)
self._rowspan.append(0)
latex_table_spec += '%sp{%.3f\\DUtablewidth}' % (bar, colwidth+0.005)
return latex_table_spec+bar
def get_column_width(self):
"""Return columnwidth for current cell (not multicell)."""
return '%.2f\\DUtablewidth' % self._col_width[self._cell_in_row-1]
def get_caption(self):
if not self.caption:
return ''
caption = ''.join(self.caption)
if 1 == self._translator.thead_depth():
return r'\caption{%s}\\' '\n' % caption
return r'\caption[]{%s (... continued)}\\' '\n' % caption
def need_recurse(self):
if self._latex_type == 'longtable':
return 1 == self._translator.thead_depth()
return 0
def visit_thead(self):
self._in_thead += 1
if self._table_style == 'standard':
return ['\\hline\n']
elif self._table_style == 'booktabs':
return ['\\toprule\n']
return []
def depart_thead(self):
a = []
#if self._table_style == 'standard':
# a.append('\\hline\n')
if self._table_style == 'booktabs':
a.append('\\midrule\n')
if self._latex_type == 'longtable':
if 1 == self._translator.thead_depth():
a.append('\\endfirsthead\n')
else:
a.append('\\endhead\n')
a.append(r'\multicolumn{%d}{c}' % len(self._col_specs) +
r'{\hfill ... continued on next page} \\')
a.append('\n\\endfoot\n\\endlastfoot\n')
# for longtable one could add firsthead, foot and lastfoot
self._in_thead -= 1
return a
def visit_row(self):
self._cell_in_row = 0
def depart_row(self):
res = [' \\\\\n']
self._cell_in_row = None # remove cell counter
for i in range(len(self._rowspan)):
if (self._rowspan[i]>0):
self._rowspan[i] -= 1
if self._table_style == 'standard':
rowspans = [i+1 for i in range(len(self._rowspan))
if (self._rowspan[i]<=0)]
if len(rowspans)==len(self._rowspan):
res.append('\\hline\n')
else:
cline = ''
rowspans.reverse()
# TODO merge clines
while 1:
try:
c_start = rowspans.pop()
except:
break
cline += '\\cline{%d-%d}\n' % (c_start,c_start)
res.append(cline)
return res
def set_rowspan(self,cell,value):
try:
self._rowspan[cell] = value
except:
pass
def get_rowspan(self,cell):
try:
return self._rowspan[cell]
except:
return 0
def get_entry_number(self):
return self._cell_in_row
def visit_entry(self):
self._cell_in_row += 1
def is_stub_column(self):
if len(self.stubs) >= self._cell_in_row:
return self.stubs[self._cell_in_row-1]
return False
class LaTeXTranslator(nodes.NodeVisitor):
# When options are given to the documentclass, latex will pass them
# to other packages, as done with babel.
# Dummy settings might be taken from document settings
# Config setting defaults
# -----------------------
# TODO: use mixins for different implementations.
# list environment for docinfo. else tabularx
## use_optionlist_for_docinfo = False # TODO: NOT YET IN USE
# Use compound enumerations (1.A.1.)
compound_enumerators = 0
# If using compound enumerations, include section information.
section_prefix_for_enumerators = 0
# This is the character that separates the section ("." subsection ...)
# prefix from the regular list enumerator.
section_enumerator_separator = '-'
# default link color
hyperlink_color = 'blue'
# Auxiliary variables
# -------------------
has_latex_toc = False # is there a toc in the doc? (needed by minitoc)
is_toc_list = False # is the current bullet_list a ToC?
section_level = 0
# Flags to encode():
# inside citation reference labels underscores dont need to be escaped
inside_citation_reference_label = False
verbatim = False # do not encode
insert_non_breaking_blanks = False # replace blanks by "~"
insert_newline = False # add latex newline commands
literal = False # literal text (block or inline)
def __init__(self, document):
nodes.NodeVisitor.__init__(self, document)
# Reporter
# ~~~~~~~~
self.warn = self.document.reporter.warning
self.error = self.document.reporter.error
# Settings
# ~~~~~~~~
self.settings = settings = document.settings
self.latex_encoding = self.to_latex_encoding(settings.output_encoding)
self.use_latex_toc = settings.use_latex_toc
self.use_latex_docinfo = settings.use_latex_docinfo
self._use_latex_citations = settings.use_latex_citations
self.embed_stylesheet = settings.embed_stylesheet
self._reference_label = settings.reference_label
self.hyperlink_color = settings.hyperlink_color
self.compound_enumerators = settings.compound_enumerators
self.font_encoding = settings.font_encoding
self.section_prefix_for_enumerators = (
settings.section_prefix_for_enumerators)
self.section_enumerator_separator = (
settings.section_enumerator_separator.replace('_', '\\_'))
# literal blocks:
self.literal_block_env = ''
self.literal_block_options = ''
if settings.literal_block_env != '':
(none,
self.literal_block_env,
self.literal_block_options,
none ) = re.split('(\w+)(.*)', settings.literal_block_env)
elif settings.use_verbatim_when_possible:
self.literal_block_env = 'verbatim'
#
if self.settings.use_bibtex:
self.bibtex = self.settings.use_bibtex.split(',',1)
# TODO avoid errors on not declared citations.
else:
self.bibtex = None
# language:
# (labels, bibliographic_fields, and author_separators)
self.language = languages.get_language(settings.language_code)
self.babel = Babel(settings.language_code)
self.author_separator = self.language.author_separators[0]
self.d_options = [self.settings.documentoptions,
self.babel.get_language()]
self.d_options = ','.join([opt for opt in self.d_options if opt])
self.d_class = DocumentClass(settings.documentclass,
settings.use_part_section)
# graphic package options:
if self.settings.graphicx_option == '':
self.graphicx_package = r'\usepackage{graphicx}'
elif self.settings.graphicx_option.lower() == 'auto':
self.graphicx_package = PreambleCmds.graphicx_auto
else:
self.graphicx_package = (r'\usepackage[%s]{graphicx}' %
self.settings.graphicx_option)
# footnotes:
self.docutils_footnotes = settings.docutils_footnotes
if settings.use_latex_footnotes:
self.docutils_footnotes = True
self.warn('`use_latex_footnotes` is deprecated. '
'The setting has been renamed to `docutils_footnotes` '
'and the alias will be removed in a future version.')
self.figure_footnotes = settings.figure_footnotes
if self.figure_footnotes:
self.docutils_footnotes = True
self.warn('The "figure footnotes" workaround/setting is strongly '
'deprecated and will be removed in a future version.')
# Output collection stacks
# ~~~~~~~~~~~~~~~~~~~~~~~~
# Document parts
self.head_prefix = [r'\documentclass[%s]{%s}' %
(self.d_options, self.settings.documentclass)]
self.requirements = SortableDict() # made a list in depart_document()
self.latex_preamble = [settings.latex_preamble]
self.stylesheet = []
self.fallbacks = SortableDict() # made a list in depart_document()
self.pdfsetup = [] # PDF properties (hyperref package)
self.title = []
self.subtitle = []
## self.body_prefix = ['\\begin{document}\n']
self.body_pre_docinfo = [] # title data and \maketitle
self.docinfo = []
self.dedication = []
self.abstract = []
self.body = []
## self.body_suffix = ['\\end{document}\n']
# A heterogenous stack used in conjunction with the tree traversal.
# Make sure that the pops correspond to the pushes:
self.context = []
# Title metadata:
self.title_labels = []
self.subtitle_labels = []
# (if use_latex_docinfo: collects lists of
# author/organization/contact/address lines)
self.author_stack = []
# date (the default supresses the "auto-date" feature of \maketitle)
self.date = []
# PDF properties: pdftitle, pdfauthor
# TODO?: pdfcreator, pdfproducer, pdfsubject, pdfkeywords
self.pdfinfo = []
self.pdfauthor = []
# Stack of section counters so that we don't have to use_latex_toc.
# This will grow and shrink as processing occurs.
# Initialized for potential first-level sections.
self._section_number = [0]
# The current stack of enumerations so that we can expand
# them into a compound enumeration.
self._enumeration_counters = []
# The maximum number of enumeration counters we've used.
# If we go beyond this number, we need to create a new
# counter; otherwise, just reuse an old one.
self._max_enumeration_counters = 0
self._bibitems = []
# object for a table while proccessing.
self.table_stack = []
self.active_table = Table(self, 'longtable', settings.table_style)
# Where to collect the output of visitor methods (default: body)
self.out = self.body
self.out_stack = [] # stack of output collectors
# Process settings
# ~~~~~~~~~~~~~~~~
# Static requirements
# TeX font encoding
if self.font_encoding:
encodings = [r'\usepackage[%s]{fontenc}' % self.font_encoding]
else:
encodings = [r'%\usepackage[OT1]{fontenc}'] # just a comment
# Docutils' output-encoding => TeX input encoding:
if self.latex_encoding != 'ascii':
encodings.append(r'\usepackage[%s]{inputenc}'
% self.latex_encoding)
self.requirements['_static'] = '\n'.join(
encodings + [
r'\usepackage{ifthen}',
# multi-language support (language is in document options)
'\\usepackage{babel}%s' % self.babel.setup,
])
# page layout with typearea (if there are relevant document options)
if (settings.documentclass.find('scr') == -1 and
(self.d_options.find('DIV') != -1 or
self.d_options.find('BCOR') != -1)):
self.requirements['typearea'] = r'\usepackage{typearea}'
# Stylesheets
# get list of style sheets from settings
styles = utils.get_stylesheet_list(settings)
# adapt path if --stylesheet_path is used
if settings.stylesheet_path and not(self.embed_stylesheet):
styles = [utils.relative_path(settings._destination, sheet)
for sheet in styles]
for sheet in styles:
(base, ext) = os.path.splitext(sheet)
is_package = ext in ['.sty', '']
if self.embed_stylesheet:
if is_package:
sheet = base + '.sty' # adapt package name
# wrap in \makeatletter, \makeatother
wrapper = PreambleCmds.embedded_package_wrapper
else:
wrapper = '%% embedded stylesheet: %s\n%s'
settings.record_dependencies.add(sheet)
self.stylesheet.append(wrapper %
(sheet, io.FileInput(source_path=sheet, encoding='utf-8').read()))
else: # link to style sheet
if is_package:
self.stylesheet.append(r'\usepackage{%s}' % base)
else:
self.stylesheet.append(r'\input{%s}' % sheet)
# PDF setup
if self.hyperlink_color == '0':
self.hyperlink_color = 'black'
self.colorlinks = 'false'
else:
self.colorlinks = 'true'
# LaTeX Toc
# include all supported sections in toc and PDF bookmarks
# (or use documentclass-default (as currently))?
## if self.use_latex_toc:
## self.requirements['tocdepth'] = (r'\setcounter{tocdepth}{%d}' %
## len(self.d_class.sections))
# LaTeX section numbering
if not self.settings.sectnum_xform: # section numbering by LaTeX:
# sectnum_depth:
# None "sectnum" directive without depth arg -> LaTeX default
# 0 no "sectnum" directive -> no section numbers
# else value of the "depth" argument: translate to LaTeX level
# -1 part (0 with "article" document class)
# 0 chapter (missing in "article" document class)
# 1 section
# 2 subsection
# 3 subsubsection
# 4 paragraph
# 5 subparagraph
if settings.sectnum_depth is not None:
# limit to supported levels
sectnum_depth = min(settings.sectnum_depth,
len(self.d_class.sections))
# adjust to document class and use_part_section settings
if 'chapter' in self.d_class.sections:
sectnum_depth -= 1
if self.d_class.sections[0] == 'part':
sectnum_depth -= 1
self.requirements['sectnum_depth'] = (
r'\setcounter{secnumdepth}{%d}' % sectnum_depth)
# start with specified number:
if (hasattr(settings, 'sectnum_start') and
settings.sectnum_start != 1):
self.requirements['sectnum_start'] = (
r'\setcounter{%s}{%d}' % (self.d_class.sections[0],
settings.sectnum_start-1))
# currently ignored (configure in a stylesheet):
## settings.sectnum_prefix
## settings.sectnum_suffix
# Auxiliary Methods
# -----------------
def to_latex_encoding(self,docutils_encoding):
"""Translate docutils encoding name into LaTeX's.
Default method is remove "-" and "_" chars from docutils_encoding.
"""
tr = { 'iso-8859-1': 'latin1', # west european
'iso-8859-2': 'latin2', # east european
'iso-8859-3': 'latin3', # esperanto, maltese
'iso-8859-4': 'latin4', # north european, scandinavian, baltic
'iso-8859-5': 'iso88595', # cyrillic (ISO)
'iso-8859-9': 'latin5', # turkish
'iso-8859-15': 'latin9', # latin9, update to latin1.
'mac_cyrillic': 'maccyr', # cyrillic (on Mac)
'windows-1251': 'cp1251', # cyrillic (on Windows)
'koi8-r': 'koi8-r', # cyrillic (Russian)
'koi8-u': 'koi8-u', # cyrillic (Ukrainian)
'windows-1250': 'cp1250', #
'windows-1252': 'cp1252', #
'us-ascii': 'ascii', # ASCII (US)
# unmatched encodings
#'': 'applemac',
#'': 'ansinew', # windows 3.1 ansi
#'': 'ascii', # ASCII encoding for the range 32--127.
#'': 'cp437', # dos latin us
#'': 'cp850', # dos latin 1
#'': 'cp852', # dos latin 2
#'': 'decmulti',
#'': 'latin10',
#'iso-8859-6': '' # arabic
#'iso-8859-7': '' # greek
#'iso-8859-8': '' # hebrew
#'iso-8859-10': '' # latin6, more complete iso-8859-4
}
encoding = docutils_encoding.lower()
if encoding in tr:
return tr[encoding]
# convert: latin-1, latin_1, utf-8 and similar things
encoding = encoding.replace('_', '').replace('-', '')
# strip the error handler
return encoding.split(':')[0]
def language_label(self, docutil_label):
return self.language.labels[docutil_label]
def ensure_math(self, text):
if not hasattr(self, 'ensure_math_re'):
chars = { # lnot,pm,twosuperior,threesuperior,mu,onesuperior,times,div
'latin1' : '\xac\xb1\xb2\xb3\xb5\xb9\xd7\xf7' , # ¬±²³µ¹×÷
# TODO?: use texcomp instead.
}
self.ensure_math_re = re.compile('([%s])' % chars['latin1'])
text = self.ensure_math_re.sub(r'\\ensuremath{\1}', text)
return text
def encode(self, text):
"""Return text with 'problematic' characters escaped.
Escape the ten special printing characters ``# $ % & ~ _ ^ \ { }``,
square brackets ``[ ]``, double quotes and (in OT1) ``< | >``.
Separate ``-`` (and more in literal text) to prevent input ligatures.
Translate non-supported Unicode characters.
"""
if self.verbatim:
return text
# Separate compound characters, e.g. '--' to '-{}-'.
separate_chars = '-'
# In monospace-font, we also separate ',,', '``' and "''" and some
# other characters which can't occur in non-literal text.
if self.literal:
separate_chars += ',`\'"<>'
# LaTeX encoding maps:
special_chars = {
ord('#'): ur'\#',
ord('$'): ur'\$',
ord('%'): ur'\%',
ord('&'): ur'\&',
ord('~'): ur'\textasciitilde{}',
ord('_'): ur'\_',
ord('^'): ur'\textasciicircum{}',
ord('\\'): ur'\textbackslash{}',
ord('{'): ur'\{',
ord('}'): ur'\}',
# Square brackets are ordinary chars and cannot be escaped with '\',
# so we put them in a group '{[}'. (Alternative: ensure that all
# macros with optional arguments are terminated with {} and text
# inside any optional argument is put in a group ``[{text}]``).
# Commands with optional args inside an optional arg must be put
# in a group, e.g. ``\item[{\hyperref[label]{text}}]``.
ord('['): ur'{[}',
ord(']'): ur'{]}'
}
# Unicode chars that are not recognized by LaTeX's utf8 encoding
unsupported_unicode_chars = {
0x00A0: ur'~', # NO-BREAK SPACE
0x00AD: ur'\-', # SOFT HYPHEN
#
0x2011: ur'\hbox{-}', # NON-BREAKING HYPHEN
0x21d4: ur'$\Leftrightarrow$',
# Docutils footnote symbols:
0x2660: ur'$\spadesuit$',
0x2663: ur'$\clubsuit$',
}
# Unicode chars that are recognized by LaTeX's utf8 encoding
unicode_chars = {
0x200C: ur'\textcompwordmark', # ZERO WIDTH NON-JOINER
0x2013: ur'\textendash{}',
0x2014: ur'\textemdash{}',
0x2018: ur'\textquoteleft{}',
0x2019: ur'\textquoteright{}',
0x201A: ur'\quotesinglbase{}', # SINGLE LOW-9 QUOTATION MARK
0x201C: ur'\textquotedblleft{}',
0x201D: ur'\textquotedblright{}',
0x201E: ur'\quotedblbase{}', # DOUBLE LOW-9 QUOTATION MARK
0x2030: ur'\textperthousand{}', # PER MILLE SIGN
0x2031: ur'\textpertenthousand{}', # PER TEN THOUSAND SIGN
0x2039: ur'\guilsinglleft{}',
0x203A: ur'\guilsinglright{}',
0x2423: ur'\textvisiblespace{}', # OPEN BOX
0x2020: ur'\dag{}',
0x2021: ur'\ddag{}',
0x2026: ur'\dots{}',
0x2122: ur'\texttrademark{}',
}
# Unicode chars that require a feature/package to render
pifont_chars = {
0x2665: ur'\ding{170}', # black heartsuit
0x2666: ur'\ding{169}', # black diamondsuit
}
# recognized with 'utf8', if textcomp is loaded
textcomp_chars = {
# Latin-1 Supplement
0x00a2: ur'\textcent{}', # ¢ CENT SIGN
0x00a4: ur'\textcurrency{}', # ¤ CURRENCY SYMBOL
0x00a5: ur'\textyen{}', # ¥ YEN SIGN
0x00a6: ur'\textbrokenbar{}', # ¦ BROKEN BAR
0x00a7: ur'\textsection{}', # § SECTION SIGN
0x00a8: ur'\textasciidieresis{}', # ¨ DIAERESIS
0x00a9: ur'\textcopyright{}', # © COPYRIGHT SIGN
0x00aa: ur'\textordfeminine{}', # ª FEMININE ORDINAL INDICATOR
0x00ac: ur'\textlnot{}', # ¬ NOT SIGN
0x00ae: ur'\textregistered{}', # ® REGISTERED SIGN
0x00af: ur'\textasciimacron{}', # ¯ MACRON
0x00b0: ur'\textdegree{}', # ° DEGREE SIGN
0x00b1: ur'\textpm{}', # ± PLUS-MINUS SIGN
0x00b2: ur'\texttwosuperior{}', # ² SUPERSCRIPT TWO
0x00b3: ur'\textthreesuperior{}', # ³ SUPERSCRIPT THREE
0x00b4: ur'\textasciiacute{}', # ´ ACUTE ACCENT
0x00b5: ur'\textmu{}', # µ MICRO SIGN
0x00b6: ur'\textparagraph{}', # ¶ PILCROW SIGN # not equal to \textpilcrow
0x00b9: ur'\textonesuperior{}', # ¹ SUPERSCRIPT ONE
0x00ba: ur'\textordmasculine{}', # º MASCULINE ORDINAL INDICATOR
0x00bc: ur'\textonequarter{}', # 1/4 FRACTION
0x00bd: ur'\textonehalf{}', # 1/2 FRACTION
0x00be: ur'\textthreequarters{}', # 3/4 FRACTION
0x00d7: ur'\texttimes{}', # × MULTIPLICATION SIGN
0x00f7: ur'\textdiv{}', # ÷ DIVISION SIGN
#
0x0192: ur'\textflorin{}', # LATIN SMALL LETTER F WITH HOOK
0x02b9: ur'\textasciiacute{}', # MODIFIER LETTER PRIME
0x02ba: ur'\textacutedbl{}', # MODIFIER LETTER DOUBLE PRIME
0x2016: ur'\textbardbl{}', # DOUBLE VERTICAL LINE
0x2022: ur'\textbullet{}', # BULLET
0x2032: ur'\textasciiacute{}', # PRIME
0x2033: ur'\textacutedbl{}', # DOUBLE PRIME
0x2035: ur'\textasciigrave{}', # REVERSED PRIME
0x2036: ur'\textgravedbl{}', # REVERSED DOUBLE PRIME
0x203b: ur'\textreferencemark{}', # REFERENCE MARK
0x203d: ur'\textinterrobang{}', # INTERROBANG
0x2044: ur'\textfractionsolidus{}', # FRACTION SLASH
0x2045: ur'\textlquill{}', # LEFT SQUARE BRACKET WITH QUILL
0x2046: ur'\textrquill{}', # RIGHT SQUARE BRACKET WITH QUILL
0x2052: ur'\textdiscount{}', # COMMERCIAL MINUS SIGN
0x20a1: ur'\textcolonmonetary{}', # COLON SIGN
0x20a3: ur'\textfrenchfranc{}', # FRENCH FRANC SIGN
0x20a4: ur'\textlira{}', # LIRA SIGN
0x20a6: ur'\textnaira{}', # NAIRA SIGN
0x20a9: ur'\textwon{}', # WON SIGN
0x20ab: ur'\textdong{}', # DONG SIGN
0x20ac: ur'\texteuro{}', # EURO SIGN
0x20b1: ur'\textpeso{}', # PESO SIGN
0x20b2: ur'\textguarani{}', # GUARANI SIGN
0x2103: ur'\textcelsius{}', # DEGREE CELSIUS
0x2116: ur'\textnumero{}', # NUMERO SIGN
0x2117: ur'\textcircledP{}', # SOUND RECORDING COYRIGHT
0x211e: ur'\textrecipe{}', # PRESCRIPTION TAKE
0x2120: ur'\textservicemark{}', # SERVICE MARK
0x2122: ur'\texttrademark{}', # TRADE MARK SIGN
0x2126: ur'\textohm{}', # OHM SIGN
0x2127: ur'\textmho{}', # INVERTED OHM SIGN
0x212e: ur'\textestimated{}', # ESTIMATED SYMBOL
0x2190: ur'\textleftarrow{}', # LEFTWARDS ARROW
0x2191: ur'\textuparrow{}', # UPWARDS ARROW
0x2192: ur'\textrightarrow{}', # RIGHTWARDS ARROW
0x2193: ur'\textdownarrow{}', # DOWNWARDS ARROW
0x2212: ur'\textminus{}', # MINUS SIGN
0x2217: ur'\textasteriskcentered{}', # ASTERISK OPERATOR
0x221a: ur'\textsurd{}', # SQUARE ROOT
0x2422: ur'\textblank{}', # BLANK SYMBOL
0x25e6: ur'\textopenbullet{}', # WHITE BULLET
0x25ef: ur'\textbigcircle{}', # LARGE CIRCLE
0x266a: ur'\textmusicalnote{}', # EIGHTH NOTE
0x26ad: ur'\textmarried{}', # MARRIAGE SYMBOL
0x26ae: ur'\textdivorced{}', # DIVORCE SYMBOL
0x27e8: ur'\textlangle{}', # MATHEMATICAL LEFT ANGLE BRACKET
0x27e9: ur'\textrangle{}', # MATHEMATICAL RIGHT ANGLE BRACKET
}
# TODO: greek alphabet ... ?
# see also LaTeX codec
# http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/252124
# and unimap.py from TeXML
# set up the translation table:
table = special_chars
# keep the underscore in citation references
if self.inside_citation_reference_label:
del(table[ord('_')])
# Workarounds for OT1 font-encoding
if self.font_encoding in ['OT1', '']:
# * out-of-order characters in cmtt
if self.literal:
# replace underscore by underlined blank,
# because this has correct width.
table[ord('_')] = u'\\underline{~}'
# the backslash doesn't work, so we use a mirrored slash.
# \reflectbox is provided by graphicx:
self.requirements['graphicx'] = self.graphicx_package
table[ord('\\')] = ur'\reflectbox{/}'
# * ``< | >`` come out as different chars (except for cmtt):
else:
table[ord('|')] = ur'\textbar{}'
table[ord('<')] = ur'\textless{}'
table[ord('>')] = ur'\textgreater{}'
if self.insert_non_breaking_blanks:
table[ord(' ')] = ur'~'
if self.literal:
# double quotes are 'active' in some languages
table[ord('"')] = self.babel.literal_double_quote
else:
text = self.babel.quote_quotes(text)
# Unicode chars:
table.update(unsupported_unicode_chars)
table.update(pifont_chars)
if not self.latex_encoding.startswith('utf8'):
table.update(unicode_chars)
table.update(textcomp_chars)
# Characters that require a feature/package to render
for ch in text:
if ord(ch) in pifont_chars:
self.requirements['pifont'] = '\\usepackage{pifont}'
if ord(ch) in textcomp_chars:
self.requirements['textcomp'] = PreambleCmds.textcomp
text = text.translate(table)
# Break up input ligatures
for char in separate_chars * 2:
# Do it twice ("* 2") because otherwise we would replace
# '---' by '-{}--'.
text = text.replace(char + char, char + '{}' + char)
# Literal line breaks (in address or literal blocks):
if self.insert_newline:
# for blank lines, insert a protected space, to avoid
# ! LaTeX Error: There's no line here to end.
textlines = [line + '~'*(not line.lstrip())
for line in text.split('\n')]
text = '\\\\\n'.join(textlines)
if self.literal and not self.insert_non_breaking_blanks:
# preserve runs of spaces but allow wrapping
text = text.replace(' ', ' ~')
if not self.latex_encoding.startswith('utf8'):
text = self.ensure_math(text)
return text
def attval(self, text,
whitespace=re.compile('[\n\r\t\v\f]')):
"""Cleanse, encode, and return attribute value text."""
return self.encode(whitespace.sub(' ', text))
# TODO: is this used anywhere? (update or delete)
## def astext(self):
## """Assemble document parts and return as string."""
## head = '\n'.join(self.head_prefix + self.stylesheet + self.head)
## body = ''.join(self.body_prefix + self.body + self.body_suffix)
## return head + '\n' + body
def is_inline(self, node):
"""Check whether a node represents an inline element"""
return isinstance(node.parent, nodes.TextElement)
def append_hypertargets(self, node):
"""Append hypertargets for all ids of `node`"""
# hypertarget places the anchor at the target's baseline,
# so we raise it explicitely
self.out.append('%\n'.join(['\\raisebox{1em}{\\hypertarget{%s}{}}' %
id for id in node['ids']]))
def ids_to_labels(self, node, set_anchor=True):
"""Return list of label definitions for all ids of `node`
If `set_anchor` is True, an anchor is set with \phantomsection.
"""
labels = ['\\label{%s}' % id for id in node.get('ids', [])]
if set_anchor and labels:
labels.insert(0, '\\phantomsection')
return labels
def push_output_collector(self, new_out):
self.out_stack.append(self.out)
self.out = new_out
def pop_output_collector(self):
self.out = self.out_stack.pop()
# Visitor methods
# ---------------
def visit_Text(self, node):
self.out.append(self.encode(node.astext()))
def depart_Text(self, node):
pass
def visit_address(self, node):
self.visit_docinfo_item(node, 'address')
def depart_address(self, node):
self.depart_docinfo_item(node)
def visit_admonition(self, node):
self.fallbacks['admonition'] = PreambleCmds.admonition
if 'error' in node['classes']:
self.fallbacks['error'] = PreambleCmds.error
# strip the generic 'admonition' from the list of classes
node['classes'] = [cls for cls in node['classes']
if cls != 'admonition']
self.out.append('\n\\DUadmonition[%s]{\n' % ','.join(node['classes']))
def depart_admonition(self, node=None):
self.out.append('}\n')
def visit_author(self, node):
self.visit_docinfo_item(node, 'author')
def depart_author(self, node):
self.depart_docinfo_item(node)
def visit_authors(self, node):
# not used: visit_author is called anyway for each author.
pass
def depart_authors(self, node):
pass
def visit_block_quote(self, node):
self.out.append( '%\n\\begin{quote}\n')
def depart_block_quote(self, node):
self.out.append( '\n\\end{quote}\n')
def visit_bullet_list(self, node):
if self.is_toc_list:
self.out.append( '%\n\\begin{list}{}{}\n' )
else:
self.out.append( '%\n\\begin{itemize}\n' )
def depart_bullet_list(self, node):
if self.is_toc_list:
self.out.append( '\n\\end{list}\n' )
else:
self.out.append( '\n\\end{itemize}\n' )
def visit_superscript(self, node):
self.out.append(r'\textsuperscript{')
if node['classes']:
self.visit_inline(node)
def depart_superscript(self, node):
if node['classes']:
self.depart_inline(node)
self.out.append('}')
def visit_subscript(self, node):
self.out.append(r'\textsubscript{') # requires `fixltx2e`
if node['classes']:
self.visit_inline(node)
def depart_subscript(self, node):
if node['classes']:
self.depart_inline(node)
self.out.append('}')
def visit_caption(self, node):
self.out.append( '\\caption{' )
def depart_caption(self, node):
self.out.append('}\n')
def visit_title_reference(self, node):
self.fallbacks['titlereference'] = PreambleCmds.titlereference
self.out.append(r'\DUroletitlereference{')
if node['classes']:
self.visit_inline(node)
def depart_title_reference(self, node):
if node['classes']:
self.depart_inline(node)
self.out.append( '}' )
def visit_citation(self, node):
# TODO maybe use cite bibitems
if self._use_latex_citations:
self.push_output_collector([])
else:
# TODO: do we need these?
## self.requirements['~fnt_floats'] = PreambleCmds.footnote_floats
self.out.append(r'\begin{figure}[b]')
self.append_hypertargets(node)
def depart_citation(self, node):
if self._use_latex_citations:
label = self.out[0]
text = ''.join(self.out[1:])
self._bibitems.append([label, text])
self.pop_output_collector()
else:
self.out.append('\\end{figure}\n')
def visit_citation_reference(self, node):
if self._use_latex_citations:
if not self.inside_citation_reference_label:
self.out.append(r'\cite{')
self.inside_citation_reference_label = 1
else:
assert self.body[-1] in (' ', '\n'),\
'unexpected non-whitespace while in reference label'
del self.body[-1]
else:
href = ''
if 'refid' in node:
href = node['refid']
elif 'refname' in node:
href = self.document.nameids[node['refname']]
self.out.append('[\\hyperlink{%s}{' % href)
def depart_citation_reference(self, node):
if self._use_latex_citations:
followup_citation = False
# check for a following citation separated by a space or newline
next_siblings = node.traverse(descend=0, siblings=1,
include_self=0)
if len(next_siblings) > 1:
next = next_siblings[0]
if (isinstance(next, nodes.Text) and
next.astext() in (' ', '\n')):
if next_siblings[1].__class__ == node.__class__:
followup_citation = True
if followup_citation:
self.out.append(',')
else:
self.out.append('}')
self.inside_citation_reference_label = False
else:
self.out.append('}]')
def visit_classifier(self, node):
self.out.append( '(\\textbf{' )
def depart_classifier(self, node):
self.out.append( '})\n' )
def visit_colspec(self, node):
self.active_table.visit_colspec(node)
def depart_colspec(self, node):
pass
def visit_comment(self, node):
# Precede every line with a comment sign, wrap in newlines
self.out.append('\n%% %s\n' % node.astext().replace('\n', '\n% '))
raise nodes.SkipNode
def depart_comment(self, node):
pass
def visit_compound(self, node):
pass
def depart_compound(self, node):
pass
def visit_contact(self, node):
self.visit_docinfo_item(node, 'contact')
def depart_contact(self, node):
self.depart_docinfo_item(node)
def visit_container(self, node):
pass
def depart_container(self, node):
pass
def visit_copyright(self, node):
self.visit_docinfo_item(node, 'copyright')
def depart_copyright(self, node):
self.depart_docinfo_item(node)
def visit_date(self, node):
self.visit_docinfo_item(node, 'date')
def depart_date(self, node):
self.depart_docinfo_item(node)
def visit_decoration(self, node):
# header and footer
pass
def depart_decoration(self, node):
pass
def visit_definition(self, node):
pass
def depart_definition(self, node):
self.out.append('\n')
def visit_definition_list(self, node):
self.out.append( '%\n\\begin{description}\n' )
def depart_definition_list(self, node):
self.out.append( '\\end{description}\n' )
def visit_definition_list_item(self, node):
pass
def depart_definition_list_item(self, node):
pass
def visit_description(self, node):
self.out.append(' ')
def depart_description(self, node):
pass
def visit_docinfo(self, node):
self.push_output_collector(self.docinfo)
def depart_docinfo(self, node):
self.pop_output_collector()
# Some itmes (e.g. author) end up at other places
if self.docinfo:
# tabularx: automatic width of columns, no page breaks allowed.
self.requirements['tabularx'] = r'\usepackage{tabularx}'
self.fallbacks['_providelength'] = PreambleCmds.providelength
self.fallbacks['docinfo'] = PreambleCmds.docinfo
#
self.docinfo.insert(0, '\n% Docinfo\n'
'\\begin{center}\n'
'\\begin{tabularx}{\\DUdocinfowidth}{lX}\n')
self.docinfo.append('\\end{tabularx}\n'
'\\end{center}\n')
def visit_docinfo_item(self, node, name):
if name == 'author':
self.pdfauthor.append(self.attval(node.astext()))
if self.use_latex_docinfo:
if name in ('author', 'organization', 'contact', 'address'):
# We attach these to the last author. If any of them precedes
# the first author, put them in a separate "author" group
# (in lack of better semantics).
if name == 'author' or not self.author_stack:
self.author_stack.append([])
if name == 'address': # newlines are meaningful
self.insert_newline = 1
text = self.encode(node.astext())
self.insert_newline = False
else:
text = self.attval(node.astext())
self.author_stack[-1].append(text)
raise nodes.SkipNode
elif name == 'date':
self.date.append(self.attval(node.astext()))
raise nodes.SkipNode
self.out.append('\\textbf{%s}: &\n\t' % self.language_label(name))
if name == 'address':
self.insert_newline = 1
self.out.append('{\\raggedright\n')
self.context.append(' } \\\\\n')
else:
self.context.append(' \\\\\n')
def depart_docinfo_item(self, node):
self.out.append(self.context.pop())
# for address we did set insert_newline
self.insert_newline = False
def visit_doctest_block(self, node):
self.visit_literal_block(node)
def depart_doctest_block(self, node):
self.depart_literal_block(node)
def visit_document(self, node):
# titled document?
if (self.use_latex_docinfo or len(node) and
isinstance(node[0], nodes.title)):
self.title_labels += self.ids_to_labels(node)
def depart_document(self, node):
# Complete header with information gained from walkabout
# a) conditional requirements (before style sheet)
self.requirements = self.requirements.sortedvalues()
# b) coditional fallback definitions (after style sheet)
self.fallbacks = self.fallbacks.sortedvalues()
# c) PDF properties
self.pdfsetup.append(PreambleCmds.linking % (self.colorlinks,
self.hyperlink_color,
self.hyperlink_color))
if self.pdfauthor:
authors = self.author_separator.join(self.pdfauthor)
self.pdfinfo.append(' pdfauthor={%s}' % authors)
if self.pdfinfo:
self.pdfsetup += [r'\hypersetup{'] + self.pdfinfo + ['}']
# Complete body
# a) document title (part 'body_prefix'):
# NOTE: Docutils puts author/date into docinfo, so normally
# we do not want LaTeX author/date handling (via \maketitle).
# To deactivate it, we add \title, \author, \date,
# even if the arguments are empty strings.
if self.title or self.author_stack or self.date:
authors = ['\\\\\n'.join(author_entry)
for author_entry in self.author_stack]
title = [''.join(self.title)] + self.title_labels
if self.subtitle:
title += [r'\\ % subtitle',
r'\large{%s}' % ''.join(self.subtitle)
] + self.subtitle_labels
self.body_pre_docinfo.append(PreambleCmds.documenttitle % (
'%\n '.join(title),
' \\and\n'.join(authors),
', '.join(self.date)))
# b) bibliography
# TODO insertion point of bibliography should be configurable.
if self._use_latex_citations and len(self._bibitems)>0:
if not self.bibtex:
widest_label = ''
for bi in self._bibitems:
if len(widest_label)<len(bi[0]):
widest_label = bi[0]
self.out.append('\n\\begin{thebibliography}{%s}\n' %
widest_label)
for bi in self._bibitems:
# cite_key: underscores must not be escaped
cite_key = bi[0].replace(r'\_','_')
self.out.append('\\bibitem[%s]{%s}{%s}\n' %
(bi[0], cite_key, bi[1]))
self.out.append('\\end{thebibliography}\n')
else:
self.out.append('\n\\bibliographystyle{%s}\n' %
self.bibtex[0])
self.out.append('\\bibliography{%s}\n' % self.bibtex[1])
# c) make sure to generate a toc file if needed for local contents:
if 'minitoc' in self.requirements and not self.has_latex_toc:
self.out.append('\n\\faketableofcontents % for local ToCs\n')
def visit_emphasis(self, node):
self.out.append('\\emph{')
if node['classes']:
self.visit_inline(node)
def depart_emphasis(self, node):
if node['classes']:
self.depart_inline(node)
self.out.append('}')
def visit_entry(self, node):
self.active_table.visit_entry()
# cell separation
# BUG: the following fails, with more than one multirow
# starting in the second column (or later) see
# ../../../test/functional/input/data/latex.txt
if self.active_table.get_entry_number() == 1:
# if the first row is a multirow, this actually is the second row.
# this gets hairy if rowspans follow each other.
if self.active_table.get_rowspan(0):
count = 0
while self.active_table.get_rowspan(count):
count += 1
self.out.append(' & ')
self.active_table.visit_entry() # increment cell count
else:
self.out.append(' & ')
# multirow, multicolumn
# IN WORK BUG TODO HACK continues here
# multirow in LaTeX simply will enlarge the cell over several rows
# (the following n if n is positive, the former if negative).
if 'morerows' in node and 'morecols' in node:
raise NotImplementedError('Cells that '
'span multiple rows *and* columns are not supported, sorry.')
if 'morerows' in node:
self.requirements['multirow'] = r'\usepackage{multirow}'
count = node['morerows'] + 1
self.active_table.set_rowspan(
self.active_table.get_entry_number()-1,count)
self.out.append('\\multirow{%d}{%s}{%%' %
(count,self.active_table.get_column_width()))
self.context.append('}')
elif 'morecols' in node:
# the vertical bar before column is missing if it is the first
# column. the one after always.
if self.active_table.get_entry_number() == 1:
bar1 = self.active_table.get_vertical_bar()
else:
bar1 = ''
count = node['morecols'] + 1
self.out.append('\\multicolumn{%d}{%sl%s}{' %
(count, bar1, self.active_table.get_vertical_bar()))
self.context.append('}')
else:
self.context.append('')
# header / not header
if isinstance(node.parent.parent, nodes.thead):
self.out.append('\\textbf{%')
self.context.append('}')
elif self.active_table.is_stub_column():
self.out.append('\\textbf{')
self.context.append('}')
else:
self.context.append('')
def depart_entry(self, node):
self.out.append(self.context.pop()) # header / not header
self.out.append(self.context.pop()) # multirow/column
# if following row is spanned from above.
if self.active_table.get_rowspan(self.active_table.get_entry_number()):
self.out.append(' & ')
self.active_table.visit_entry() # increment cell count
def visit_row(self, node):
self.active_table.visit_row()
def depart_row(self, node):
self.out.extend(self.active_table.depart_row())
def visit_enumerated_list(self, node):
# We create our own enumeration list environment.
# This allows to set the style and starting value
# and unlimited nesting.
enum_style = {'arabic':'arabic',
'loweralpha':'alph',
'upperalpha':'Alph',
'lowerroman':'roman',
'upperroman':'Roman' }
enum_suffix = ''
if 'suffix' in node:
enum_suffix = node['suffix']
enum_prefix = ''
if 'prefix' in node:
enum_prefix = node['prefix']
if self.compound_enumerators:
pref = ''
if self.section_prefix_for_enumerators and self.section_level:
for i in range(self.section_level):
pref += '%d.' % self._section_number[i]
pref = pref[:-1] + self.section_enumerator_separator
enum_prefix += pref
for ctype, cname in self._enumeration_counters:
enum_prefix += '\\%s{%s}.' % (ctype, cname)
enum_type = 'arabic'
if 'enumtype' in node:
enum_type = node['enumtype']
if enum_type in enum_style:
enum_type = enum_style[enum_type]
counter_name = 'listcnt%d' % len(self._enumeration_counters)
self._enumeration_counters.append((enum_type, counter_name))
# If we haven't used this counter name before, then create a
# new counter; otherwise, reset & reuse the old counter.
if len(self._enumeration_counters) > self._max_enumeration_counters:
self._max_enumeration_counters = len(self._enumeration_counters)
self.out.append('\\newcounter{%s}\n' % counter_name)
else:
self.out.append('\\setcounter{%s}{0}\n' % counter_name)
self.out.append('\\begin{list}{%s\\%s{%s}%s}\n' %
(enum_prefix,enum_type,counter_name,enum_suffix))
self.out.append('{\n')
self.out.append('\\usecounter{%s}\n' % counter_name)
# set start after usecounter, because it initializes to zero.
if 'start' in node:
self.out.append('\\addtocounter{%s}{%d}\n' %
(counter_name,node['start']-1))
## set rightmargin equal to leftmargin
self.out.append('\\setlength{\\rightmargin}{\\leftmargin}\n')
self.out.append('}\n')
def depart_enumerated_list(self, node):
self.out.append('\\end{list}\n')
self._enumeration_counters.pop()
def visit_field(self, node):
# real output is done in siblings: _argument, _body, _name
pass
def depart_field(self, node):
self.out.append('\n')
##self.out.append('%[depart_field]\n')
def visit_field_argument(self, node):
self.out.append('%[visit_field_argument]\n')
def depart_field_argument(self, node):
self.out.append('%[depart_field_argument]\n')
def visit_field_body(self, node):
pass
def depart_field_body(self, node):
if self.out is self.docinfo:
self.out.append(r'\\')
def visit_field_list(self, node):
if self.out is not self.docinfo:
self.fallbacks['fieldlist'] = PreambleCmds.fieldlist
self.out.append('%\n\\begin{DUfieldlist}\n')
def depart_field_list(self, node):
if self.out is not self.docinfo:
self.out.append('\\end{DUfieldlist}\n')
def visit_field_name(self, node):
if self.out is self.docinfo:
self.out.append('\\textbf{')
else:
# Commands with optional args inside an optional arg must be put
# in a group, e.g. ``\item[{\hyperref[label]{text}}]``.
self.out.append('\\item[{')
def depart_field_name(self, node):
if self.out is self.docinfo:
self.out.append('}: &')
else:
self.out.append(':}]')
def visit_figure(self, node):
self.requirements['float_settings'] = PreambleCmds.float_settings
# ! the 'align' attribute should set "outer alignment" !
# For "inner alignment" use LaTeX default alignment (similar to HTML)
## if ('align' not in node.attributes or
## node.attributes['align'] == 'center'):
## align = '\n\\centering'
## align_end = ''
## else:
## # TODO non vertical space for other alignments.
## align = '\\begin{flush%s}' % node.attributes['align']
## align_end = '\\end{flush%s}' % node.attributes['align']
## self.out.append( '\\begin{figure}%s\n' % align )
## self.context.append( '%s\\end{figure}\n' % align_end )
self.out.append('\\begin{figure}')
if node.get('ids'):
self.out += ['\n'] + self.ids_to_labels(node)
def depart_figure(self, node):
self.out.append('\\end{figure}\n')
def visit_footer(self, node):
self.push_output_collector([])
self.out.append(r'\newcommand{\DUfooter}{')
def depart_footer(self, node):
self.out.append('}')
self.requirements['~footer'] = ''.join(self.out)
self.pop_output_collector()
def visit_footnote(self, node):
try:
backref = node['backrefs'][0]
except IndexError:
backref = node['ids'][0] # no backref, use self-ref instead
if self.settings.figure_footnotes:
self.requirements['~fnt_floats'] = PreambleCmds.footnote_floats
self.out.append('\\begin{figure}[b]')
self.append_hypertargets(node)
if node.get('id') == node.get('name'): # explicite label
self.out += self.ids_to_labels(node)
elif self.docutils_footnotes:
self.fallbacks['footnotes'] = PreambleCmds.footnotes
num,text = node.astext().split(None,1)
if self.settings.footnote_references == 'brackets':
num = '[%s]' % num
self.out.append('%%\n\\DUfootnotetext{%s}{%s}{%s}{' %
(node['ids'][0], backref, self.encode(num)))
if node['ids'] == node['names']:
self.out += self.ids_to_labels(node)
# mask newline to prevent spurious whitespace:
self.out.append('%')
## else: # TODO: "real" LaTeX \footnote{}s
def depart_footnote(self, node):
if self.figure_footnotes:
self.out.append('\\end{figure}\n')
else:
self.out.append('}\n')
def visit_footnote_reference(self, node):
href = ''
if 'refid' in node:
href = node['refid']
elif 'refname' in node:
href = self.document.nameids[node['refname']]
# if not self.docutils_footnotes:
# TODO: insert footnote content at (or near) this place
# print "footnote-ref to", node['refid']
# footnotes = (self.document.footnotes +
# self.document.autofootnotes +
# self.document.symbol_footnotes)
# for footnote in footnotes:
# # print footnote['ids']
# if node.get('refid', '') in footnote['ids']:
# print 'matches', footnote['ids']
format = self.settings.footnote_references
if format == 'brackets':
self.append_hypertargets(node)
self.out.append('\\hyperlink{%s}{[' % href)
self.context.append(']}')
else:
self.fallbacks['footnotes'] = PreambleCmds.footnotes
self.out.append(r'\DUfootnotemark{%s}{%s}{' %
(node['ids'][0], href))
self.context.append('}')
def depart_footnote_reference(self, node):
self.out.append(self.context.pop())
# footnote/citation label
def label_delim(self, node, bracket, superscript):
if isinstance(node.parent, nodes.footnote):
if not self.figure_footnotes:
raise nodes.SkipNode
if self.settings.footnote_references == 'brackets':
self.out.append(bracket)
else:
self.out.append(superscript)
else:
assert isinstance(node.parent, nodes.citation)
if not self._use_latex_citations:
self.out.append(bracket)
def visit_label(self, node):
"""footnote or citation label: in brackets or as superscript"""
self.label_delim(node, '[', '\\textsuperscript{')
def depart_label(self, node):
self.label_delim(node, ']', '}')
# elements generated by the framework e.g. section numbers.
def visit_generated(self, node):
pass
def depart_generated(self, node):
pass
def visit_header(self, node):
self.push_output_collector([])
self.out.append(r'\newcommand{\DUheader}{')
def depart_header(self, node):
self.out.append('}')
self.requirements['~header'] = ''.join(self.out)
self.pop_output_collector()
def to_latex_length(self, length_str):
"""Convert string with rst lenght to LaTeX"""
match = re.match('(\d*\.?\d*)\s*(\S*)', length_str)
if not match:
return length_str
value, unit = match.groups()[:2]
# no unit or "DTP" points (called 'bp' in TeX):
if unit in ('', 'pt'):
length_str = '%sbp' % value
# percentage: relate to current line width
elif unit == '%':
length_str = '%.3f\\linewidth' % (float(value)/100.0)
return length_str
def visit_image(self, node):
self.requirements['graphicx'] = self.graphicx_package
attrs = node.attributes
# Add image URI to dependency list, assuming that it's
# referring to a local file.
self.settings.record_dependencies.add(attrs['uri'])
# alignment defaults:
if not 'align' in attrs:
# Set default align of image in a figure to 'center'
if isinstance(node.parent, nodes.figure):
attrs['align'] = 'center'
# query 'align-*' class argument
for cls in node['classes']:
if cls.startswith('align-'):
attrs['align'] = cls.split('-')[1]
# pre- and postfix (prefix inserted in reverse order)
pre = []
post = []
include_graphics_options = []
display_style = ('block-', 'inline-')[self.is_inline(node)]
align_codes = {
# inline images: by default latex aligns the bottom.
'bottom': ('', ''),
'middle': (r'\raisebox{-0.5\height}{', '}'),
'top': (r'\raisebox{-\height}{', '}'),
# block level images:
'center': (r'\noindent\makebox[\textwidth][c]{', '}'),
'left': (r'\noindent{', r'\hfill}'),
'right': (r'\noindent{\hfill', '}'),}
if 'align' in attrs:
try:
align_code = align_codes[attrs['align']]
pre.append(align_code[0])
post.append(align_code[1])
except KeyError:
pass # TODO: warn?
if 'height' in attrs:
include_graphics_options.append('height=%s' %
self.to_latex_length(attrs['height']))
if 'scale' in attrs:
include_graphics_options.append('scale=%f' %
(attrs['scale'] / 100.0))
if 'width' in attrs:
include_graphics_options.append('width=%s' %
self.to_latex_length(attrs['width']))
if not self.is_inline(node):
pre.append('\n')
post.append('\n')
pre.reverse()
self.out.extend(pre)
options = ''
if include_graphics_options:
options = '[%s]' % (','.join(include_graphics_options))
self.out.append('\\includegraphics%s{%s}' % (options, attrs['uri']))
self.out.extend(post)
def depart_image(self, node):
if node.get('ids'):
self.out += self.ids_to_labels(node) + ['\n']
def visit_interpreted(self, node):
# @@@ Incomplete, pending a proper implementation on the
# Parser/Reader end.
self.visit_literal(node)
def depart_interpreted(self, node):
self.depart_literal(node)
def visit_legend(self, node):
self.fallbacks['legend'] = PreambleCmds.legend
self.out.append('\\begin{DUlegend}')
def depart_legend(self, node):
self.out.append('\\end{DUlegend}\n')
def visit_line(self, node):
self.out.append('\item[] ')
def depart_line(self, node):
self.out.append('\n')
def visit_line_block(self, node):
self.fallbacks['_providelength'] = PreambleCmds.providelength
self.fallbacks['lineblock'] = PreambleCmds.lineblock
if isinstance(node.parent, nodes.line_block):
self.out.append('\\item[]\n'
'\\begin{DUlineblock}{\\DUlineblockindent}\n')
else:
self.out.append('\n\\begin{DUlineblock}{0em}\n')
def depart_line_block(self, node):
self.out.append('\\end{DUlineblock}\n')
def visit_list_item(self, node):
self.out.append('\n\\item ')
def depart_list_item(self, node):
pass
def visit_literal(self, node):
self.literal = True
self.out.append('\\texttt{')
if node['classes']:
self.visit_inline(node)
def depart_literal(self, node):
self.literal = False
if node['classes']:
self.depart_inline(node)
self.out.append('}')
# Literal blocks are used for '::'-prefixed literal-indented
# blocks of text, where the inline markup is not recognized,
# but are also the product of the "parsed-literal" directive,
# where the markup is respected.
#
# In both cases, we want to use a typewriter/monospaced typeface.
# For "real" literal-blocks, we can use \verbatim, while for all
# the others we must use \mbox or \alltt.
#
# We can distinguish between the two kinds by the number of
# siblings that compose this node: if it is composed by a
# single element, it's either
# * a real one,
# * a parsed-literal that does not contain any markup, or
# * a parsed-literal containing just one markup construct.
def is_plaintext(self, node):
"""Check whether a node can be typeset verbatim"""
return (len(node) == 1) and isinstance(node[0], nodes.Text)
def visit_literal_block(self, node):
"""Render a literal block."""
# environments and packages to typeset literal blocks
packages = {'listing': r'\usepackage{moreverb}',
'lstlisting': r'\usepackage{listings}',
'Verbatim': r'\usepackage{fancyvrb}',
# 'verbatim': '',
'verbatimtab': r'\usepackage{moreverb}'}
if not self.active_table.is_open():
# no quote inside tables, to avoid vertical space between
# table border and literal block.
# BUG: fails if normal text preceeds the literal block.
self.out.append('%\n\\begin{quote}')
self.context.append('\n\\end{quote}\n')
else:
self.out.append('\n')
self.context.append('\n')
if self.literal_block_env != '' and self.is_plaintext(node):
self.requirements['literal_block'] = packages.get(
self.literal_block_env, '')
self.verbatim = True
self.out.append('\\begin{%s}%s\n' % (self.literal_block_env,
self.literal_block_options))
else:
self.literal = True
self.insert_newline = True
self.insert_non_breaking_blanks = True
self.out.append('{\\ttfamily \\raggedright \\noindent\n')
def depart_literal_block(self, node):
if self.verbatim:
self.out.append('\n\\end{%s}\n' % self.literal_block_env)
self.verbatim = False
else:
self.out.append('\n}')
self.insert_non_breaking_blanks = False
self.insert_newline = False
self.literal = False
self.out.append(self.context.pop())
## def visit_meta(self, node):
## self.out.append('[visit_meta]\n')
# TODO: set keywords for pdf?
# But:
# The reStructuredText "meta" directive creates a "pending" node,
# which contains knowledge that the embedded "meta" node can only
# be handled by HTML-compatible writers. The "pending" node is
# resolved by the docutils.transforms.components.Filter transform,
# which checks that the calling writer supports HTML; if it doesn't,
# the "pending" node (and enclosed "meta" node) is removed from the
# document.
# --- docutils/docs/peps/pep-0258.html#transformer
## def depart_meta(self, node):
## self.out.append('[depart_meta]\n')
def visit_option(self, node):
if self.context[-1]:
# this is not the first option
self.out.append(', ')
def depart_option(self, node):
# flag tha the first option is done.
self.context[-1] += 1
def visit_option_argument(self, node):
"""Append the delimiter betweeen an option and its argument to body."""
self.out.append(node.get('delimiter', ' '))
def depart_option_argument(self, node):
pass
def visit_option_group(self, node):
self.out.append('\n\\item[')
# flag for first option
self.context.append(0)
def depart_option_group(self, node):
self.context.pop() # the flag
self.out.append('] ')
def visit_option_list(self, node):
self.fallbacks['_providelength'] = PreambleCmds.providelength
self.fallbacks['optionlist'] = PreambleCmds.optionlist
self.out.append('%\n\\begin{DUoptionlist}\n')
def depart_option_list(self, node):
self.out.append('\n\\end{DUoptionlist}\n')
def visit_option_list_item(self, node):
pass
def depart_option_list_item(self, node):
pass
def visit_option_string(self, node):
##self.out.append(self.starttag(node, 'span', '', CLASS='option'))
pass
def depart_option_string(self, node):
##self.out.append('</span>')
pass
def visit_organization(self, node):
self.visit_docinfo_item(node, 'organization')
def depart_organization(self, node):
self.depart_docinfo_item(node)
def visit_paragraph(self, node):
# no newline if the paragraph is first in a list item
if ((isinstance(node.parent, nodes.list_item) or
isinstance(node.parent, nodes.description)) and
node is node.parent[0]):
return
index = node.parent.index(node)
if (isinstance(node.parent, nodes.compound) and
index > 0 and
not isinstance(node.parent[index - 1], nodes.paragraph) and
not isinstance(node.parent[index - 1], nodes.compound)):
return
self.out.append('\n')
if node.get('ids'):
self.out += self.ids_to_labels(node) + ['\n']
def depart_paragraph(self, node):
self.out.append('\n')
def visit_problematic(self, node):
self.requirements['color'] = PreambleCmds.color
self.out.append('%\n')
self.append_hypertargets(node)
self.out.append(r'\hyperlink{%s}{\textbf{\color{red}' % node['refid'])
def depart_problematic(self, node):
self.out.append('}}')
def visit_raw(self, node):
if not 'latex' in node.get('format', '').split():
raise nodes.SkipNode
if node['classes']:
self.visit_inline(node)
# append "as-is" skipping any LaTeX-encoding
self.verbatim = True
def depart_raw(self, node):
self.verbatim = False
if node['classes']:
self.depart_inline(node)
def has_unbalanced_braces(self, string):
"""Test whether there are unmatched '{' or '}' characters."""
level = 0
for ch in string:
if ch == '{':
level += 1
if ch == '}':
level -= 1
if level < 0:
return True
return level != 0
def visit_reference(self, node):
# We need to escape #, \, and % if we use the URL in a command.
special_chars = {ord('#'): ur'\#',
ord('%'): ur'\%',
ord('\\'): ur'\\',
}
# external reference (URL)
if 'refuri' in node:
href = unicode(node['refuri']).translate(special_chars)
# problematic chars double caret and unbalanced braces:
if href.find('^^') != -1 or self.has_unbalanced_braces(href):
self.error(
'External link "%s" not supported by LaTeX.\n'
' (Must not contain "^^" or unbalanced braces.)' % href)
if node['refuri'] == node.astext():
self.out.append(r'\url{%s}' % href)
raise nodes.SkipNode
self.out.append(r'\href{%s}{' % href)
return
# internal reference
if 'refid' in node:
href = node['refid']
elif 'refname' in node:
href = self.document.nameids[node['refname']]
else:
raise AssertionError('Unknown reference.')
if not self.is_inline(node):
self.out.append('\n')
self.out.append('\\hyperref[%s]{' % href)
if self._reference_label:
self.out.append('\\%s{%s}}' %
(self._reference_label, href.replace('#', '')))
raise nodes.SkipNode
def depart_reference(self, node):
self.out.append('}')
if not self.is_inline(node):
self.out.append('\n')
def visit_revision(self, node):
self.visit_docinfo_item(node, 'revision')
def depart_revision(self, node):
self.depart_docinfo_item(node)
def visit_section(self, node):
self.section_level += 1
# Initialize counter for potential subsections:
self._section_number.append(0)
# Counter for this section's level (initialized by parent section):
self._section_number[self.section_level - 1] += 1
def depart_section(self, node):
# Remove counter for potential subsections:
self._section_number.pop()
self.section_level -= 1
def visit_sidebar(self, node):
self.requirements['color'] = PreambleCmds.color
self.fallbacks['sidebar'] = PreambleCmds.sidebar
self.out.append('\n\\DUsidebar{\n')
def depart_sidebar(self, node):
self.out.append('}\n')
attribution_formats = {'dash': ('---', ''),
'parentheses': ('(', ')'),
'parens': ('(', ')'),
'none': ('', '')}
def visit_attribution(self, node):
prefix, suffix = self.attribution_formats[self.settings.attribution]
self.out.append('\n\\begin{flushright}\n')
self.out.append(prefix)
self.context.append(suffix)
def depart_attribution(self, node):
self.out.append(self.context.pop() + '\n')
self.out.append('\\end{flushright}\n')
def visit_status(self, node):
self.visit_docinfo_item(node, 'status')
def depart_status(self, node):
self.depart_docinfo_item(node)
def visit_strong(self, node):
self.out.append('\\textbf{')
if node['classes']:
self.visit_inline(node)
def depart_strong(self, node):
if node['classes']:
self.depart_inline(node)
self.out.append('}')
def visit_substitution_definition(self, node):
raise nodes.SkipNode
def visit_substitution_reference(self, node):
self.unimplemented_visit(node)
def visit_subtitle(self, node):
if isinstance(node.parent, nodes.document):
self.push_output_collector(self.subtitle)
self.subtitle_labels += self.ids_to_labels(node, set_anchor=False)
# section subtitle: "starred" (no number, not in ToC)
elif isinstance(node.parent, nodes.section):
self.out.append(r'\%s*{' %
self.d_class.section(self.section_level + 1))
else:
self.fallbacks['subtitle'] = PreambleCmds.subtitle
self.out.append('\n\\DUsubtitle[%s]{' % node.parent.tagname)
def depart_subtitle(self, node):
if isinstance(node.parent, nodes.document):
self.pop_output_collector()
else:
self.out.append('}\n')
def visit_system_message(self, node):
self.requirements['color'] = PreambleCmds.color
self.fallbacks['title'] = PreambleCmds.title
node['classes'] = ['system-message']
self.visit_admonition(node)
self.out.append('\\DUtitle[system-message]{system-message}\n')
self.append_hypertargets(node)
try:
line = ', line~%s' % node['line']
except KeyError:
line = ''
self.out.append('\n\n{\color{red}%s/%s} in \\texttt{%s}%s\n' %
(node['type'], node['level'],
self.encode(node['source']), line))
if len(node['backrefs']) == 1:
self.out.append('\n\\hyperlink{%s}{' % node['backrefs'][0])
self.context.append('}')
else:
backrefs = ['\\hyperlink{%s}{%d}' % (href, i+1)
for (i, href) in enumerate(node['backrefs'])]
self.context.append('backrefs: ' + ' '.join(backrefs))
def depart_system_message(self, node):
self.out.append(self.context.pop())
self.depart_admonition()
def visit_table(self, node):
self.requirements['table'] = PreambleCmds.table
if self.active_table.is_open():
self.table_stack.append(self.active_table)
# nesting longtable does not work (e.g. 2007-04-18)
self.active_table = Table(self,'tabular',self.settings.table_style)
self.active_table.open()
for cls in node['classes']:
self.active_table.set_table_style(cls)
if self.active_table._table_style == 'booktabs':
self.requirements['booktabs'] = r'\usepackage{booktabs}'
self.out.append('\n' + self.active_table.get_opening())
def depart_table(self, node):
self.out.append(self.active_table.get_closing() + '\n')
self.active_table.close()
if len(self.table_stack)>0:
self.active_table = self.table_stack.pop()
else:
self.active_table.set_table_style(self.settings.table_style)
# Insert hyperlabel after (long)table, as
# other places (beginning, caption) result in LaTeX errors.
if node.get('ids'):
self.out += self.ids_to_labels(node, set_anchor=False) + ['\n']
def visit_target(self, node):
# Skip indirect targets:
if ('refuri' in node # external hyperlink
or 'refid' in node # resolved internal link
or 'refname' in node): # unresolved internal link
## self.out.append('%% %s\n' % node) # for debugging
return
self.out.append('%\n')
# do we need an anchor (\phantomsection)?
set_anchor = not(isinstance(node.parent, nodes.caption) or
isinstance(node.parent, nodes.title))
# TODO: where else can/must we omit the \phantomsection?
self.out += self.ids_to_labels(node, set_anchor)
def depart_target(self, node):
pass
def visit_tbody(self, node):
# BUG write preamble if not yet done (colspecs not [])
# for tables without heads.
if not self.active_table.get('preamble written'):
self.visit_thead(None)
self.depart_thead(None)
def depart_tbody(self, node):
pass
def visit_term(self, node):
"""definition list term"""
# Commands with optional args inside an optional arg must be put
# in a group, e.g. ``\item[{\hyperref[label]{text}}]``.
self.out.append('\\item[{')
def depart_term(self, node):
# \leavevmode results in a line break if the
# term is followed by an item list.
self.out.append('}] \leavevmode ')
def visit_tgroup(self, node):
#self.out.append(self.starttag(node, 'colgroup'))
#self.context.append('</colgroup>\n')
pass
def depart_tgroup(self, node):
pass
_thead_depth = 0
def thead_depth (self):
return self._thead_depth
def visit_thead(self, node):
self._thead_depth += 1
if 1 == self.thead_depth():
self.out.append('{%s}\n' % self.active_table.get_colspecs())
self.active_table.set('preamble written',1)
self.out.append(self.active_table.get_caption())
self.out.extend(self.active_table.visit_thead())
def depart_thead(self, node):
if node is not None:
self.out.extend(self.active_table.depart_thead())
if self.active_table.need_recurse():
node.walkabout(self)
self._thead_depth -= 1
def bookmark(self, node):
"""Return label and pdfbookmark string for titles."""
result = ['']
if self.settings.sectnum_xform: # "starred" section cmd
# add to the toc and pdfbookmarks
section_name = self.d_class.section(max(self.section_level, 1))
section_title = self.encode(node.astext())
result.append(r'\phantomsection')
result.append(r'\addcontentsline{toc}{%s}{%s}' %
(section_name, section_title))
result += self.ids_to_labels(node.parent, set_anchor=False)
return '%\n '.join(result) + '%\n'
def visit_title(self, node):
"""Append section and other titles."""
# Document title
if node.parent.tagname == 'document':
self.push_output_collector(self.title)
self.context.append('')
self.pdfinfo.append(' pdftitle={%s},' %
self.encode(node.astext()))
# Topic titles (topic, admonition, sidebar)
elif (isinstance(node.parent, nodes.topic) or
isinstance(node.parent, nodes.admonition) or
isinstance(node.parent, nodes.sidebar)):
self.fallbacks['title'] = PreambleCmds.title
classes = ','.join(node.parent['classes'])
if not classes:
classes = node.tagname
self.out.append('\\DUtitle[%s]{' % classes)
self.context.append('}\n')
# Table caption
elif isinstance(node.parent, nodes.table):
self.push_output_collector(self.active_table.caption)
self.context.append('')
# Section title
else:
self.out.append('\n\n')
self.out.append('%' + '_' * 75)
self.out.append('\n\n')
#
section_name = self.d_class.section(self.section_level)
# number sections?
if (self.settings.sectnum_xform # numbering by Docutils
or (self.section_level > len(self.d_class.sections))):
section_star = '*'
else: # LaTeX numbered sections
section_star = ''
self.out.append(r'\%s%s{' % (section_name, section_star))
# System messages heading in red:
if ('system-messages' in node.parent['classes']):
self.requirements['color'] = PreambleCmds.color
self.out.append('\color{red}')
# label and ToC entry:
self.context.append(self.bookmark(node) + '}\n')
# MAYBE postfix paragraph and subparagraph with \leavemode to
# ensure floats stay in the section and text starts on a new line.
def depart_title(self, node):
self.out.append(self.context.pop())
if (isinstance(node.parent, nodes.table) or
node.parent.tagname == 'document'):
self.pop_output_collector()
def minitoc(self, node, title, depth):
"""Generate a local table of contents with LaTeX package minitoc"""
section_name = self.d_class.section(self.section_level)
# name-prefix for current section level
minitoc_names = {'part': 'part', 'chapter': 'mini'}
if 'chapter' not in self.d_class.sections:
minitoc_names['section'] = 'sect'
try:
minitoc_name = minitoc_names[section_name]
except KeyError: # minitoc only supports part- and toplevel
self.warn('Skipping local ToC at %s level.\n' % section_name +
' Feature not supported with option "use-latex-toc"',
base_node=node)
return
# Requirements/Setup
self.requirements['minitoc'] = PreambleCmds.minitoc
self.requirements['minitoc-'+minitoc_name] = (r'\do%stoc' %
minitoc_name)
# depth: (Docutils defaults to unlimited depth)
maxdepth = len(self.d_class.sections)
self.requirements['minitoc-%s-depth' % minitoc_name] = (
r'\mtcsetdepth{%stoc}{%d}' % (minitoc_name, maxdepth))
# Process 'depth' argument (!Docutils stores a relative depth while
# minitoc expects an absolute depth!):
offset = {'sect': 1, 'mini': 0, 'part': 0}
if 'chapter' in self.d_class.sections:
offset['part'] = -1
if depth:
self.out.append('\\setcounter{%stocdepth}{%d}' %
(minitoc_name, depth + offset[minitoc_name]))
# title:
self.out.append('\\mtcsettitle{%stoc}{%s}\n' % (minitoc_name, title))
# the toc-generating command:
self.out.append('\\%stoc\n' % minitoc_name)
def visit_topic(self, node):
# Topic nodes can be generic topic, abstract, dedication, or ToC.
# table of contents:
if 'contents' in node['classes']:
self.out.append('\n')
self.out += self.ids_to_labels(node)
# add contents to PDF bookmarks sidebar
if isinstance(node.next_node(), nodes.title):
self.out.append('\n\\pdfbookmark[%d]{%s}{%s}\n' %
(self.section_level+1,
node.next_node().astext(),
node.get('ids', ['contents'])[0]
))
if self.use_latex_toc:
title = ''
if isinstance(node.next_node(), nodes.title):
title = self.encode(node.pop(0).astext())
depth = node.get('depth', 0)
if 'local' in node['classes']:
self.minitoc(node, title, depth)
self.context.append('')
return
if depth:
self.out.append('\\setcounter{tocdepth}{%d}\n' % depth)
if title != 'Contents':
self.out.append('\\renewcommand{\\contentsname}{%s}\n' %
title)
self.out.append('\\tableofcontents\n\n')
self.has_latex_toc = True
else: # Docutils generated contents list
# set flag for visit_bullet_list() and visit_title()
self.is_toc_list = True
self.context.append('')
elif ('abstract' in node['classes'] and
self.settings.use_latex_abstract):
self.push_output_collector(self.abstract)
self.out.append('\\begin{abstract}')
self.context.append('\\end{abstract}\n')
if isinstance(node.next_node(), nodes.title):
node.pop(0) # LaTeX provides its own title
else:
self.fallbacks['topic'] = PreambleCmds.topic
# special topics:
if 'abstract' in node['classes']:
self.fallbacks['abstract'] = PreambleCmds.abstract
self.push_output_collector(self.abstract)
if 'dedication' in node['classes']:
self.fallbacks['dedication'] = PreambleCmds.dedication
self.push_output_collector(self.dedication)
self.out.append('\n\\DUtopic[%s]{\n' % ','.join(node['classes']))
self.context.append('}\n')
def depart_topic(self, node):
self.out.append(self.context.pop())
self.is_toc_list = False
if ('abstract' in node['classes'] or
'dedication' in node['classes']):
self.pop_output_collector()
def visit_inline(self, node): # <span>, i.e. custom roles
# insert fallback definition
self.fallbacks['inline'] = PreambleCmds.inline
self.out += [r'\DUrole{%s}{' % cls for cls in node['classes']]
self.context.append('}' * (len(node['classes'])))
def depart_inline(self, node):
self.out.append(self.context.pop())
def visit_rubric(self, node):
self.fallbacks['rubric'] = PreambleCmds.rubric
self.out.append('\n\\DUrubric{')
self.context.append('}\n')
def depart_rubric(self, node):
self.out.append(self.context.pop())
def visit_transition(self, node):
self.fallbacks['transition'] = PreambleCmds.transition
self.out.append('\n\n')
self.out.append('%' + '_' * 75 + '\n')
self.out.append(r'\DUtransition')
self.out.append('\n\n')
def depart_transition(self, node):
pass
def visit_version(self, node):
self.visit_docinfo_item(node, 'version')
def depart_version(self, node):
self.depart_docinfo_item(node)
def unimplemented_visit(self, node):
raise NotImplementedError('visiting unimplemented node type: %s' %
node.__class__.__name__)
# def unknown_visit(self, node):
# def default_visit(self, node):
# vim: set ts=4 et ai :