mirror of
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e519aab43a
Also documented missing short command line options to fix #24134. This bumps the minimum sphinx version required to build the docs to 1.3.4. Thanks Simon Charette for review.
321 lines
10 KiB
Python
321 lines
10 KiB
Python
"""
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Sphinx plugins for Django documentation.
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"""
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import json
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import os
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import re
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from docutils import nodes
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from docutils.parsers.rst import directives
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from sphinx import addnodes
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from sphinx.builders.html import StandaloneHTMLBuilder
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from sphinx.domains.std import Cmdoption
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from sphinx.util.compat import Directive
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from sphinx.util.console import bold
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from sphinx.util.nodes import set_source_info
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from sphinx.writers.html import SmartyPantsHTMLTranslator
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# RE for option descriptions without a '--' prefix
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simple_option_desc_re = re.compile(
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r'([-_a-zA-Z0-9]+)(\s*.*?)(?=,\s+(?:/|-|--)|$)')
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def setup(app):
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app.add_crossref_type(
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directivename="setting",
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rolename="setting",
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indextemplate="pair: %s; setting",
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)
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app.add_crossref_type(
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directivename="templatetag",
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rolename="ttag",
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indextemplate="pair: %s; template tag"
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)
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app.add_crossref_type(
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directivename="templatefilter",
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rolename="tfilter",
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indextemplate="pair: %s; template filter"
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)
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app.add_crossref_type(
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directivename="fieldlookup",
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rolename="lookup",
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indextemplate="pair: %s; field lookup type",
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)
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app.add_description_unit(
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directivename="django-admin",
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rolename="djadmin",
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indextemplate="pair: %s; django-admin command",
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parse_node=parse_django_admin_node,
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)
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app.add_directive('django-admin-option', Cmdoption)
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app.add_config_value('django_next_version', '0.0', True)
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app.add_directive('versionadded', VersionDirective)
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app.add_directive('versionchanged', VersionDirective)
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app.add_builder(DjangoStandaloneHTMLBuilder)
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# register the snippet directive
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app.add_directive('snippet', SnippetWithFilename)
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# register a node for snippet directive so that the xml parser
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# knows how to handle the enter/exit parsing event
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app.add_node(snippet_with_filename,
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html=(visit_snippet, depart_snippet_literal),
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latex=(visit_snippet_latex, depart_snippet_latex),
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man=(visit_snippet_literal, depart_snippet_literal),
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text=(visit_snippet_literal, depart_snippet_literal),
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texinfo=(visit_snippet_literal, depart_snippet_literal))
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return {'parallel_read_safe': True}
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class snippet_with_filename(nodes.literal_block):
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"""
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Subclass the literal_block to override the visit/depart event handlers
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"""
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pass
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def visit_snippet_literal(self, node):
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"""
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default literal block handler
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"""
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self.visit_literal_block(node)
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def depart_snippet_literal(self, node):
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"""
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default literal block handler
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"""
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self.depart_literal_block(node)
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def visit_snippet(self, node):
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"""
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HTML document generator visit handler
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"""
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lang = self.highlightlang
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linenos = node.rawsource.count('\n') >= self.highlightlinenothreshold - 1
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fname = node['filename']
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highlight_args = node.get('highlight_args', {})
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if 'language' in node:
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# code-block directives
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lang = node['language']
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highlight_args['force'] = True
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if 'linenos' in node:
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linenos = node['linenos']
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def warner(msg):
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self.builder.warn(msg, (self.builder.current_docname, node.line))
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highlighted = self.highlighter.highlight_block(node.rawsource, lang,
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warn=warner,
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linenos=linenos,
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**highlight_args)
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starttag = self.starttag(node, 'div', suffix='',
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CLASS='highlight-%s' % lang)
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self.body.append(starttag)
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self.body.append('<div class="snippet-filename">%s</div>\n''' % (fname,))
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self.body.append(highlighted)
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self.body.append('</div>\n')
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raise nodes.SkipNode
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def visit_snippet_latex(self, node):
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"""
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Latex document generator visit handler
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"""
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code = node.rawsource.rstrip('\n')
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lang = self.hlsettingstack[-1][0]
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linenos = code.count('\n') >= self.hlsettingstack[-1][1] - 1
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fname = node['filename']
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highlight_args = node.get('highlight_args', {})
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if 'language' in node:
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# code-block directives
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lang = node['language']
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highlight_args['force'] = True
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if 'linenos' in node:
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linenos = node['linenos']
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def warner(msg):
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self.builder.warn(msg, (self.curfilestack[-1], node.line))
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hlcode = self.highlighter.highlight_block(code, lang, warn=warner,
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linenos=linenos,
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**highlight_args)
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self.body.append(
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'\n{\\colorbox[rgb]{0.9,0.9,0.9}'
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'{\\makebox[\\textwidth][l]'
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'{\\small\\texttt{%s}}}}\n' % (
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# Some filenames have '_', which is special in latex.
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fname.replace('_', r'\_'),
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)
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)
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if self.table:
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hlcode = hlcode.replace('\\begin{Verbatim}',
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'\\begin{OriginalVerbatim}')
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self.table.has_problematic = True
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self.table.has_verbatim = True
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hlcode = hlcode.rstrip()[:-14] # strip \end{Verbatim}
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hlcode = hlcode.rstrip() + '\n'
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self.body.append('\n' + hlcode + '\\end{%sVerbatim}\n' %
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(self.table and 'Original' or ''))
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# Prevent rawsource from appearing in output a second time.
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raise nodes.SkipNode
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def depart_snippet_latex(self, node):
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"""
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Latex document generator depart handler.
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"""
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pass
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class SnippetWithFilename(Directive):
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"""
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The 'snippet' directive that allows to add the filename (optional)
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of a code snippet in the document. This is modeled after CodeBlock.
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"""
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has_content = True
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optional_arguments = 1
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option_spec = {'filename': directives.unchanged_required}
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def run(self):
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code = '\n'.join(self.content)
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literal = snippet_with_filename(code, code)
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if self.arguments:
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literal['language'] = self.arguments[0]
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literal['filename'] = self.options['filename']
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set_source_info(self, literal)
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return [literal]
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class VersionDirective(Directive):
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has_content = True
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required_arguments = 1
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optional_arguments = 1
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final_argument_whitespace = True
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option_spec = {}
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def run(self):
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if len(self.arguments) > 1:
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msg = """Only one argument accepted for directive '{directive_name}::'.
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Comments should be provided as content,
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not as an extra argument.""".format(directive_name=self.name)
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raise self.error(msg)
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env = self.state.document.settings.env
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ret = []
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node = addnodes.versionmodified()
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ret.append(node)
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if self.arguments[0] == env.config.django_next_version:
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node['version'] = "Development version"
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else:
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node['version'] = self.arguments[0]
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node['type'] = self.name
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if self.content:
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self.state.nested_parse(self.content, self.content_offset, node)
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env.note_versionchange(node['type'], node['version'], node, self.lineno)
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return ret
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class DjangoHTMLTranslator(SmartyPantsHTMLTranslator):
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"""
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Django-specific reST to HTML tweaks.
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"""
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# Don't use border=1, which docutils does by default.
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def visit_table(self, node):
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self.context.append(self.compact_p)
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self.compact_p = True
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self._table_row_index = 0 # Needed by Sphinx
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self.body.append(self.starttag(node, 'table', CLASS='docutils'))
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def depart_table(self, node):
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self.compact_p = self.context.pop()
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self.body.append('</table>\n')
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def visit_desc_parameterlist(self, node):
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self.body.append('(') # by default sphinx puts <big> around the "("
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self.first_param = 1
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self.optional_param_level = 0
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self.param_separator = node.child_text_separator
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self.required_params_left = sum([isinstance(c, addnodes.desc_parameter)
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for c in node.children])
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def depart_desc_parameterlist(self, node):
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self.body.append(')')
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#
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# Turn the "new in version" stuff (versionadded/versionchanged) into a
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# better callout -- the Sphinx default is just a little span,
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# which is a bit less obvious that I'd like.
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#
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# FIXME: these messages are all hardcoded in English. We need to change
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# that to accommodate other language docs, but I can't work out how to make
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# that work.
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#
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version_text = {
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'versionchanged': 'Changed in Django %s',
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'versionadded': 'New in Django %s',
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}
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def visit_versionmodified(self, node):
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self.body.append(
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self.starttag(node, 'div', CLASS=node['type'])
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)
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version_text = self.version_text.get(node['type'])
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if version_text:
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title = "%s%s" % (
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version_text % node['version'],
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":" if len(node) else "."
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)
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self.body.append('<span class="title">%s</span> ' % title)
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def depart_versionmodified(self, node):
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self.body.append("</div>\n")
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# Give each section a unique ID -- nice for custom CSS hooks
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def visit_section(self, node):
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old_ids = node.get('ids', [])
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node['ids'] = ['s-' + i for i in old_ids]
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node['ids'].extend(old_ids)
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SmartyPantsHTMLTranslator.visit_section(self, node)
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node['ids'] = old_ids
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def parse_django_admin_node(env, sig, signode):
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command = sig.split(' ')[0]
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env.ref_context['std:program'] = command
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title = "django-admin %s" % sig
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signode += addnodes.desc_name(title, title)
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return command
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class DjangoStandaloneHTMLBuilder(StandaloneHTMLBuilder):
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"""
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Subclass to add some extra things we need.
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"""
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name = 'djangohtml'
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def finish(self):
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super(DjangoStandaloneHTMLBuilder, self).finish()
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self.info(bold("writing templatebuiltins.js..."))
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xrefs = self.env.domaindata["std"]["objects"]
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templatebuiltins = {
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"ttags": [n for ((t, n), (l, a)) in xrefs.items()
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if t == "templatetag" and l == "ref/templates/builtins"],
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"tfilters": [n for ((t, n), (l, a)) in xrefs.items()
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if t == "templatefilter" and l == "ref/templates/builtins"],
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}
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outfilename = os.path.join(self.outdir, "templatebuiltins.js")
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with open(outfilename, 'w') as fp:
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fp.write('var django_template_builtins = ')
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json.dump(templatebuiltins, fp)
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fp.write(';\n')
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