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595 lines
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595 lines
20 KiB
# -*- coding: utf-8 -*-
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"""
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pygments.lexers.markup
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~~~~~~~~~~~~~~~~~~~~~~
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Lexers for non-HTML markup languages.
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:copyright: Copyright 2006-2017 by the Pygments team, see AUTHORS.
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:license: BSD, see LICENSE for details.
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"""
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import re
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from pygments.lexers.html import HtmlLexer, XmlLexer
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from pygments.lexers.javascript import JavascriptLexer
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from pygments.lexers.css import CssLexer
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from pygments.lexer import RegexLexer, DelegatingLexer, include, bygroups, \
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using, this, do_insertions, default, words
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from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
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Number, Punctuation, Generic, Other
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from pygments.util import get_bool_opt, ClassNotFound
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__all__ = ['BBCodeLexer', 'MoinWikiLexer', 'RstLexer', 'TexLexer', 'GroffLexer',
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'MozPreprocHashLexer', 'MozPreprocPercentLexer',
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'MozPreprocXulLexer', 'MozPreprocJavascriptLexer',
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'MozPreprocCssLexer', 'MarkdownLexer']
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class BBCodeLexer(RegexLexer):
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"""
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A lexer that highlights BBCode(-like) syntax.
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.. versionadded:: 0.6
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"""
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name = 'BBCode'
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aliases = ['bbcode']
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mimetypes = ['text/x-bbcode']
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tokens = {
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'root': [
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(r'[^[]+', Text),
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# tag/end tag begin
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(r'\[/?\w+', Keyword, 'tag'),
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# stray bracket
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(r'\[', Text),
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],
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'tag': [
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(r'\s+', Text),
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# attribute with value
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(r'(\w+)(=)("?[^\s"\]]+"?)',
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bygroups(Name.Attribute, Operator, String)),
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# tag argument (a la [color=green])
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(r'(=)("?[^\s"\]]+"?)',
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bygroups(Operator, String)),
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# tag end
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(r'\]', Keyword, '#pop'),
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],
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}
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class MoinWikiLexer(RegexLexer):
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"""
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For MoinMoin (and Trac) Wiki markup.
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.. versionadded:: 0.7
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"""
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name = 'MoinMoin/Trac Wiki markup'
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aliases = ['trac-wiki', 'moin']
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filenames = []
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mimetypes = ['text/x-trac-wiki']
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flags = re.MULTILINE | re.IGNORECASE
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tokens = {
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'root': [
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(r'^#.*$', Comment),
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(r'(!)(\S+)', bygroups(Keyword, Text)), # Ignore-next
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# Titles
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(r'^(=+)([^=]+)(=+)(\s*#.+)?$',
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bygroups(Generic.Heading, using(this), Generic.Heading, String)),
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# Literal code blocks, with optional shebang
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(r'(\{\{\{)(\n#!.+)?', bygroups(Name.Builtin, Name.Namespace), 'codeblock'),
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(r'(\'\'\'?|\|\||`|__|~~|\^|,,|::)', Comment), # Formatting
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# Lists
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(r'^( +)([.*-])( )', bygroups(Text, Name.Builtin, Text)),
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(r'^( +)([a-z]{1,5}\.)( )', bygroups(Text, Name.Builtin, Text)),
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# Other Formatting
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(r'\[\[\w+.*?\]\]', Keyword), # Macro
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(r'(\[[^\s\]]+)(\s+[^\]]+?)?(\])',
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bygroups(Keyword, String, Keyword)), # Link
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(r'^----+$', Keyword), # Horizontal rules
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(r'[^\n\'\[{!_~^,|]+', Text),
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(r'\n', Text),
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(r'.', Text),
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],
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'codeblock': [
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(r'\}\}\}', Name.Builtin, '#pop'),
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# these blocks are allowed to be nested in Trac, but not MoinMoin
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(r'\{\{\{', Text, '#push'),
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(r'[^{}]+', Comment.Preproc), # slurp boring text
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(r'.', Comment.Preproc), # allow loose { or }
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],
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}
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class RstLexer(RegexLexer):
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"""
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For `reStructuredText <http://docutils.sf.net/rst.html>`_ markup.
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.. versionadded:: 0.7
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Additional options accepted:
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`handlecodeblocks`
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Highlight the contents of ``.. sourcecode:: language``,
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``.. code:: language`` and ``.. code-block:: language``
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directives with a lexer for the given language (default:
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``True``).
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.. versionadded:: 0.8
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"""
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name = 'reStructuredText'
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aliases = ['rst', 'rest', 'restructuredtext']
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filenames = ['*.rst', '*.rest']
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mimetypes = ["text/x-rst", "text/prs.fallenstein.rst"]
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flags = re.MULTILINE
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def _handle_sourcecode(self, match):
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from pygments.lexers import get_lexer_by_name
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# section header
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yield match.start(1), Punctuation, match.group(1)
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yield match.start(2), Text, match.group(2)
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yield match.start(3), Operator.Word, match.group(3)
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yield match.start(4), Punctuation, match.group(4)
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yield match.start(5), Text, match.group(5)
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yield match.start(6), Keyword, match.group(6)
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yield match.start(7), Text, match.group(7)
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# lookup lexer if wanted and existing
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lexer = None
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if self.handlecodeblocks:
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try:
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lexer = get_lexer_by_name(match.group(6).strip())
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except ClassNotFound:
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pass
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indention = match.group(8)
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indention_size = len(indention)
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code = (indention + match.group(9) + match.group(10) + match.group(11))
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# no lexer for this language. handle it like it was a code block
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if lexer is None:
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yield match.start(8), String, code
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return
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# highlight the lines with the lexer.
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ins = []
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codelines = code.splitlines(True)
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code = ''
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for line in codelines:
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if len(line) > indention_size:
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ins.append((len(code), [(0, Text, line[:indention_size])]))
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code += line[indention_size:]
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else:
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code += line
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for item in do_insertions(ins, lexer.get_tokens_unprocessed(code)):
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yield item
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# from docutils.parsers.rst.states
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closers = u'\'")]}>\u2019\u201d\xbb!?'
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unicode_delimiters = u'\u2010\u2011\u2012\u2013\u2014\u00a0'
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end_string_suffix = (r'((?=$)|(?=[-/:.,; \n\x00%s%s]))'
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% (re.escape(unicode_delimiters),
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re.escape(closers)))
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tokens = {
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'root': [
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# Heading with overline
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(r'^(=+|-+|`+|:+|\.+|\'+|"+|~+|\^+|_+|\*+|\++|#+)([ \t]*\n)'
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r'(.+)(\n)(\1)(\n)',
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bygroups(Generic.Heading, Text, Generic.Heading,
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Text, Generic.Heading, Text)),
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# Plain heading
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(r'^(\S.*)(\n)(={3,}|-{3,}|`{3,}|:{3,}|\.{3,}|\'{3,}|"{3,}|'
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r'~{3,}|\^{3,}|_{3,}|\*{3,}|\+{3,}|#{3,})(\n)',
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bygroups(Generic.Heading, Text, Generic.Heading, Text)),
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# Bulleted lists
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(r'^(\s*)([-*+])( .+\n(?:\1 .+\n)*)',
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bygroups(Text, Number, using(this, state='inline'))),
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# Numbered lists
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(r'^(\s*)([0-9#ivxlcmIVXLCM]+\.)( .+\n(?:\1 .+\n)*)',
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bygroups(Text, Number, using(this, state='inline'))),
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(r'^(\s*)(\(?[0-9#ivxlcmIVXLCM]+\))( .+\n(?:\1 .+\n)*)',
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bygroups(Text, Number, using(this, state='inline'))),
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# Numbered, but keep words at BOL from becoming lists
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(r'^(\s*)([A-Z]+\.)( .+\n(?:\1 .+\n)+)',
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bygroups(Text, Number, using(this, state='inline'))),
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(r'^(\s*)(\(?[A-Za-z]+\))( .+\n(?:\1 .+\n)+)',
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bygroups(Text, Number, using(this, state='inline'))),
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# Line blocks
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(r'^(\s*)(\|)( .+\n(?:\| .+\n)*)',
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bygroups(Text, Operator, using(this, state='inline'))),
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# Sourcecode directives
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(r'^( *\.\.)(\s*)((?:source)?code(?:-block)?)(::)([ \t]*)([^\n]+)'
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r'(\n[ \t]*\n)([ \t]+)(.*)(\n)((?:(?:\8.*|)\n)+)',
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_handle_sourcecode),
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# A directive
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(r'^( *\.\.)(\s*)([\w:-]+?)(::)(?:([ \t]*)(.*))',
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bygroups(Punctuation, Text, Operator.Word, Punctuation, Text,
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using(this, state='inline'))),
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# A reference target
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(r'^( *\.\.)(\s*)(_(?:[^:\\]|\\.)+:)(.*?)$',
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bygroups(Punctuation, Text, Name.Tag, using(this, state='inline'))),
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# A footnote/citation target
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(r'^( *\.\.)(\s*)(\[.+\])(.*?)$',
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bygroups(Punctuation, Text, Name.Tag, using(this, state='inline'))),
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# A substitution def
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(r'^( *\.\.)(\s*)(\|.+\|)(\s*)([\w:-]+?)(::)(?:([ \t]*)(.*))',
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bygroups(Punctuation, Text, Name.Tag, Text, Operator.Word,
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Punctuation, Text, using(this, state='inline'))),
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# Comments
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(r'^ *\.\..*(\n( +.*\n|\n)+)?', Comment.Preproc),
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# Field list
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(r'^( *)(:[a-zA-Z-]+:)(\s*)$', bygroups(Text, Name.Class, Text)),
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(r'^( *)(:.*?:)([ \t]+)(.*?)$',
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bygroups(Text, Name.Class, Text, Name.Function)),
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# Definition list
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(r'^(\S.*(?<!::)\n)((?:(?: +.*)\n)+)',
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bygroups(using(this, state='inline'), using(this, state='inline'))),
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# Code blocks
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(r'(::)(\n[ \t]*\n)([ \t]+)(.*)(\n)((?:(?:\3.*|)\n)+)',
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bygroups(String.Escape, Text, String, String, Text, String)),
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include('inline'),
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],
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'inline': [
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(r'\\.', Text), # escape
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(r'``', String, 'literal'), # code
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(r'(`.+?)(<.+?>)(`__?)', # reference with inline target
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bygroups(String, String.Interpol, String)),
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(r'`.+?`__?', String), # reference
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(r'(`.+?`)(:[a-zA-Z0-9:-]+?:)?',
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bygroups(Name.Variable, Name.Attribute)), # role
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(r'(:[a-zA-Z0-9:-]+?:)(`.+?`)',
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bygroups(Name.Attribute, Name.Variable)), # role (content first)
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(r'\*\*.+?\*\*', Generic.Strong), # Strong emphasis
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(r'\*.+?\*', Generic.Emph), # Emphasis
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(r'\[.*?\]_', String), # Footnote or citation
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(r'<.+?>', Name.Tag), # Hyperlink
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(r'[^\\\n\[*`:]+', Text),
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(r'.', Text),
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],
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'literal': [
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(r'[^`]+', String),
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(r'``' + end_string_suffix, String, '#pop'),
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(r'`', String),
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]
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}
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def __init__(self, **options):
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self.handlecodeblocks = get_bool_opt(options, 'handlecodeblocks', True)
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RegexLexer.__init__(self, **options)
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def analyse_text(text):
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if text[:2] == '..' and text[2:3] != '.':
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return 0.3
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p1 = text.find("\n")
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p2 = text.find("\n", p1 + 1)
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if (p2 > -1 and # has two lines
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p1 * 2 + 1 == p2 and # they are the same length
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text[p1+1] in '-=' and # the next line both starts and ends with
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text[p1+1] == text[p2-1]): # ...a sufficiently high header
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return 0.5
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class TexLexer(RegexLexer):
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"""
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Lexer for the TeX and LaTeX typesetting languages.
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"""
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name = 'TeX'
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aliases = ['tex', 'latex']
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filenames = ['*.tex', '*.aux', '*.toc']
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mimetypes = ['text/x-tex', 'text/x-latex']
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tokens = {
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'general': [
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(r'%.*?\n', Comment),
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(r'[{}]', Name.Builtin),
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(r'[&_^]', Name.Builtin),
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],
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'root': [
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(r'\\\[', String.Backtick, 'displaymath'),
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(r'\\\(', String, 'inlinemath'),
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(r'\$\$', String.Backtick, 'displaymath'),
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(r'\$', String, 'inlinemath'),
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(r'\\([a-zA-Z]+|.)', Keyword, 'command'),
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(r'\\$', Keyword),
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include('general'),
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(r'[^\\$%&_^{}]+', Text),
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],
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'math': [
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(r'\\([a-zA-Z]+|.)', Name.Variable),
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include('general'),
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(r'[0-9]+', Number),
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(r'[-=!+*/()\[\]]', Operator),
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(r'[^=!+*/()\[\]\\$%&_^{}0-9-]+', Name.Builtin),
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],
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'inlinemath': [
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(r'\\\)', String, '#pop'),
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(r'\$', String, '#pop'),
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include('math'),
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],
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'displaymath': [
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(r'\\\]', String, '#pop'),
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(r'\$\$', String, '#pop'),
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(r'\$', Name.Builtin),
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include('math'),
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],
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'command': [
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(r'\[.*?\]', Name.Attribute),
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(r'\*', Keyword),
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default('#pop'),
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],
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}
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def analyse_text(text):
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for start in ("\\documentclass", "\\input", "\\documentstyle",
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"\\relax"):
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if text[:len(start)] == start:
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return True
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class GroffLexer(RegexLexer):
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"""
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Lexer for the (g)roff typesetting language, supporting groff
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extensions. Mainly useful for highlighting manpage sources.
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.. versionadded:: 0.6
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"""
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name = 'Groff'
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aliases = ['groff', 'nroff', 'man']
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filenames = ['*.[1234567]', '*.man']
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mimetypes = ['application/x-troff', 'text/troff']
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tokens = {
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'root': [
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(r'(\.)(\w+)', bygroups(Text, Keyword), 'request'),
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(r'\.', Punctuation, 'request'),
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# Regular characters, slurp till we find a backslash or newline
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(r'[^\\\n]+', Text, 'textline'),
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default('textline'),
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],
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'textline': [
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include('escapes'),
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(r'[^\\\n]+', Text),
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(r'\n', Text, '#pop'),
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],
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'escapes': [
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# groff has many ways to write escapes.
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(r'\\"[^\n]*', Comment),
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(r'\\[fn]\w', String.Escape),
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(r'\\\(.{2}', String.Escape),
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(r'\\.\[.*\]', String.Escape),
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(r'\\.', String.Escape),
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(r'\\\n', Text, 'request'),
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],
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'request': [
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(r'\n', Text, '#pop'),
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include('escapes'),
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(r'"[^\n"]+"', String.Double),
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(r'\d+', Number),
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(r'\S+', String),
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(r'\s+', Text),
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],
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}
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def analyse_text(text):
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if text[:1] != '.':
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return False
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if text[:3] == '.\\"':
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return True
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if text[:4] == '.TH ':
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return True
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if text[1:3].isalnum() and text[3].isspace():
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return 0.9
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class MozPreprocHashLexer(RegexLexer):
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"""
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Lexer for Mozilla Preprocessor files (with '#' as the marker).
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Other data is left untouched.
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.. versionadded:: 2.0
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"""
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name = 'mozhashpreproc'
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aliases = [name]
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filenames = []
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mimetypes = []
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tokens = {
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'root': [
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(r'^#', Comment.Preproc, ('expr', 'exprstart')),
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(r'.+', Other),
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],
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'exprstart': [
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(r'(literal)(.*)', bygroups(Comment.Preproc, Text), '#pop:2'),
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(words((
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'define', 'undef', 'if', 'ifdef', 'ifndef', 'else', 'elif',
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'elifdef', 'elifndef', 'endif', 'expand', 'filter', 'unfilter',
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'include', 'includesubst', 'error')),
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Comment.Preproc, '#pop'),
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],
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'expr': [
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(words(('!', '!=', '==', '&&', '||')), Operator),
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(r'(defined)(\()', bygroups(Keyword, Punctuation)),
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(r'\)', Punctuation),
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(r'[0-9]+', Number.Decimal),
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(r'__\w+?__', Name.Variable),
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(r'@\w+?@', Name.Class),
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(r'\w+', Name),
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(r'\n', Text, '#pop'),
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(r'\s+', Text),
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(r'\S', Punctuation),
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],
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}
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class MozPreprocPercentLexer(MozPreprocHashLexer):
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"""
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Lexer for Mozilla Preprocessor files (with '%' as the marker).
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Other data is left untouched.
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.. versionadded:: 2.0
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"""
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name = 'mozpercentpreproc'
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aliases = [name]
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filenames = []
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mimetypes = []
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tokens = {
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'root': [
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(r'^%', Comment.Preproc, ('expr', 'exprstart')),
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(r'.+', Other),
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],
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}
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class MozPreprocXulLexer(DelegatingLexer):
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"""
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Subclass of the `MozPreprocHashLexer` that highlights unlexed data with the
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`XmlLexer`.
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.. versionadded:: 2.0
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"""
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name = "XUL+mozpreproc"
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aliases = ['xul+mozpreproc']
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filenames = ['*.xul.in']
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mimetypes = []
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def __init__(self, **options):
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super(MozPreprocXulLexer, self).__init__(
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XmlLexer, MozPreprocHashLexer, **options)
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class MozPreprocJavascriptLexer(DelegatingLexer):
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"""
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Subclass of the `MozPreprocHashLexer` that highlights unlexed data with the
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`JavascriptLexer`.
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.. versionadded:: 2.0
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"""
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name = "Javascript+mozpreproc"
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aliases = ['javascript+mozpreproc']
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filenames = ['*.js.in']
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mimetypes = []
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def __init__(self, **options):
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super(MozPreprocJavascriptLexer, self).__init__(
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JavascriptLexer, MozPreprocHashLexer, **options)
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class MozPreprocCssLexer(DelegatingLexer):
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"""
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Subclass of the `MozPreprocHashLexer` that highlights unlexed data with the
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`CssLexer`.
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.. versionadded:: 2.0
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"""
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name = "CSS+mozpreproc"
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aliases = ['css+mozpreproc']
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filenames = ['*.css.in']
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mimetypes = []
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def __init__(self, **options):
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super(MozPreprocCssLexer, self).__init__(
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CssLexer, MozPreprocPercentLexer, **options)
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class MarkdownLexer(RegexLexer):
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"""
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For `Markdown <https://help.github.com/categories/writing-on-github/>`_ markup.
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.. versionadded:: 2.2
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"""
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name = 'markdown'
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aliases = ['md']
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filenames = ['*.md']
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mimetypes = ["text/x-markdown"]
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flags = re.MULTILINE
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def _handle_codeblock(self, match):
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"""
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match args: 1:backticks, 2:lang_name, 3:newline, 4:code, 5:backticks
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"""
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from pygments.lexers import get_lexer_by_name
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# section header
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yield match.start(1), String , match.group(1)
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yield match.start(2), String , match.group(2)
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yield match.start(3), Text , match.group(3)
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# lookup lexer if wanted and existing
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lexer = None
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if self.handlecodeblocks:
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try:
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lexer = get_lexer_by_name( match.group(2).strip() )
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except ClassNotFound:
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pass
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code = match.group(4)
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# no lexer for this language. handle it like it was a code block
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if lexer is None:
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yield match.start(4), String, code
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else:
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for item in do_insertions([], lexer.get_tokens_unprocessed(code)):
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yield item
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yield match.start(5), String , match.group(5)
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tokens = {
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'root': [
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# heading with pound prefix
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(r'^(#)([^#].+\n)', bygroups(Generic.Heading, Text)),
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(r'^(#{2,6})(.+\n)', bygroups(Generic.Subheading, Text)),
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# task list
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(r'^(\s*)([*-] )(\[[ xX]\])( .+\n)',
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bygroups(Text, Keyword, Keyword, using(this, state='inline'))),
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# bulleted lists
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(r'^(\s*)([*-])(\s)(.+\n)',
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bygroups(Text, Keyword, Text, using(this, state='inline'))),
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# numbered lists
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(r'^(\s*)([0-9]+\.)( .+\n)',
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bygroups(Text, Keyword, using(this, state='inline'))),
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# quote
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(r'^(\s*>\s)(.+\n)', bygroups(Keyword, Generic.Emph)),
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# text block
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(r'^(```\n)([\w\W]*?)(^```$)', bygroups(String, Text, String)),
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# code block with language
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(r'^(```)(\w+)(\n)([\w\W]*?)(^```$)', _handle_codeblock),
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include('inline'),
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],
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'inline': [
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# escape
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(r'\\.', Text),
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# italics
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(r'(\s)([*_][^*_]+[*_])(\W|\n)', bygroups(Text, Generic.Emph, Text)),
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# bold
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# warning: the following rule eats internal tags. eg. **foo _bar_ baz** bar is not italics
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(r'(\s)((\*\*|__).*\3)((?=\W|\n))', bygroups(Text, Generic.Strong, None, Text)),
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# "proper way" (r'(\s)([*_]{2}[^*_]+[*_]{2})((?=\W|\n))', bygroups(Text, Generic.Strong, Text)),
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# strikethrough
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(r'(\s)(~~[^~]+~~)((?=\W|\n))', bygroups(Text, Generic.Deleted, Text)),
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# inline code
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(r'`[^`]+`', String.Backtick),
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# mentions and topics (twitter and github stuff)
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(r'[@#][\w/:]+', Name.Entity),
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# (image?) links eg: 
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(r'(!?\[)([^]]+)(\])(\()([^)]+)(\))', bygroups(Text, Name.Tag, Text, Text, Name.Attribute, Text)),
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# general text, must come last!
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(r'[^\\\s]+', Text),
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(r'.', Text),
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],
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}
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def __init__(self, **options):
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self.handlecodeblocks = get_bool_opt(options, 'handlecodeblocks', True)
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|
RegexLexer.__init__(self, **options)
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