mirror of
https://github.com/sphinx-doc/sphinx.git
synced 2025-02-25 18:55:22 -06:00
f996859420
.. note::
$ find sphinx tests LICENSE doc/conf.py -type f -exec sed -i '' -e 's/2007\-20../2007-2021/' {} \;
$ git co sphinx/locale/**/*.js sphinx/templates/epub3/mimetype
107 lines
4.4 KiB
Python
107 lines
4.4 KiB
Python
"""
|
|
sphinx.ext.mathjax
|
|
~~~~~~~~~~~~~~~~~~
|
|
|
|
Allow `MathJax <https://www.mathjax.org/>`_ to be used to display math in
|
|
Sphinx's HTML writer -- requires the MathJax JavaScript library on your
|
|
webserver/computer.
|
|
|
|
:copyright: Copyright 2007-2021 by the Sphinx team, see AUTHORS.
|
|
:license: BSD, see LICENSE for details.
|
|
"""
|
|
|
|
import json
|
|
from typing import Any, Dict, cast
|
|
|
|
from docutils import nodes
|
|
|
|
import sphinx
|
|
from sphinx.application import Sphinx
|
|
from sphinx.builders.html import StandaloneHTMLBuilder
|
|
from sphinx.domains.math import MathDomain
|
|
from sphinx.environment import BuildEnvironment
|
|
from sphinx.errors import ExtensionError
|
|
from sphinx.locale import _
|
|
from sphinx.util.math import get_node_equation_number
|
|
from sphinx.writers.html import HTMLTranslator
|
|
|
|
|
|
def html_visit_math(self: HTMLTranslator, node: nodes.math) -> None:
|
|
self.body.append(self.starttag(node, 'span', '', CLASS='math notranslate nohighlight'))
|
|
self.body.append(self.builder.config.mathjax_inline[0] +
|
|
self.encode(node.astext()) +
|
|
self.builder.config.mathjax_inline[1] + '</span>')
|
|
raise nodes.SkipNode
|
|
|
|
|
|
def html_visit_displaymath(self: HTMLTranslator, node: nodes.math_block) -> None:
|
|
self.body.append(self.starttag(node, 'div', CLASS='math notranslate nohighlight'))
|
|
if node['nowrap']:
|
|
self.body.append(self.encode(node.astext()))
|
|
self.body.append('</div>')
|
|
raise nodes.SkipNode
|
|
|
|
# necessary to e.g. set the id property correctly
|
|
if node['number']:
|
|
number = get_node_equation_number(self, node)
|
|
self.body.append('<span class="eqno">(%s)' % number)
|
|
self.add_permalink_ref(node, _('Permalink to this equation'))
|
|
self.body.append('</span>')
|
|
self.body.append(self.builder.config.mathjax_display[0])
|
|
parts = [prt for prt in node.astext().split('\n\n') if prt.strip()]
|
|
if len(parts) > 1: # Add alignment if there are more than 1 equation
|
|
self.body.append(r' \begin{align}\begin{aligned}')
|
|
for i, part in enumerate(parts):
|
|
part = self.encode(part)
|
|
if r'\\' in part:
|
|
self.body.append(r'\begin{split}' + part + r'\end{split}')
|
|
else:
|
|
self.body.append(part)
|
|
if i < len(parts) - 1: # append new line if not the last equation
|
|
self.body.append(r'\\')
|
|
if len(parts) > 1: # Add alignment if there are more than 1 equation
|
|
self.body.append(r'\end{aligned}\end{align} ')
|
|
self.body.append(self.builder.config.mathjax_display[1])
|
|
self.body.append('</div>\n')
|
|
raise nodes.SkipNode
|
|
|
|
|
|
def install_mathjax(app: Sphinx, env: BuildEnvironment) -> None:
|
|
if app.builder.format != 'html' or app.builder.math_renderer_name != 'mathjax': # type: ignore # NOQA
|
|
return
|
|
if not app.config.mathjax_path:
|
|
raise ExtensionError('mathjax_path config value must be set for the '
|
|
'mathjax extension to work')
|
|
|
|
builder = cast(StandaloneHTMLBuilder, app.builder)
|
|
domain = cast(MathDomain, env.get_domain('math'))
|
|
if domain.has_equations():
|
|
# Enable mathjax only if equations exists
|
|
options = {'async': 'async'}
|
|
if app.config.mathjax_options:
|
|
options.update(app.config.mathjax_options)
|
|
builder.add_js_file(app.config.mathjax_path, **options)
|
|
|
|
if app.config.mathjax_config:
|
|
body = "MathJax.Hub.Config(%s)" % json.dumps(app.config.mathjax_config)
|
|
builder.add_js_file(None, type="text/x-mathjax-config", body=body)
|
|
|
|
|
|
def setup(app: Sphinx) -> Dict[str, Any]:
|
|
app.add_html_math_renderer('mathjax',
|
|
(html_visit_math, None),
|
|
(html_visit_displaymath, None))
|
|
|
|
# more information for mathjax secure url is here:
|
|
# https://docs.mathjax.org/en/latest/start.html#secure-access-to-the-cdn
|
|
app.add_config_value('mathjax_path',
|
|
'https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.7/latest.js?'
|
|
'config=TeX-AMS-MML_HTMLorMML', 'html')
|
|
app.add_config_value('mathjax_options', {}, 'html')
|
|
app.add_config_value('mathjax_inline', [r'\(', r'\)'], 'html')
|
|
app.add_config_value('mathjax_display', [r'\[', r'\]'], 'html')
|
|
app.add_config_value('mathjax_config', None, 'html')
|
|
app.connect('env-updated', install_mathjax)
|
|
|
|
return {'version': sphinx.__display_version__, 'parallel_read_safe': True}
|