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203 lines
7.4 KiB
Python
203 lines
7.4 KiB
Python
"""
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pygments.lexers.textedit
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~~~~~~~~~~~~~~~~~~~~~~~~
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Lexers for languages related to text processing.
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:copyright: Copyright 2006-2022 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 bisect import bisect
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from pygments.lexer import RegexLexer, bygroups, default, include, this, using
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from pygments.lexers.python import PythonLexer
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from pygments.token import Comment, Error, Keyword, Name, Number, Operator, \
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Punctuation, String, Text, Whitespace
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__all__ = ['AwkLexer', 'SedLexer', 'VimLexer']
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class AwkLexer(RegexLexer):
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"""
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For Awk scripts.
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.. versionadded:: 1.5
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"""
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name = 'Awk'
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aliases = ['awk', 'gawk', 'mawk', 'nawk']
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filenames = ['*.awk']
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mimetypes = ['application/x-awk']
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tokens = {
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'commentsandwhitespace': [
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(r'\s+', Text),
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(r'#.*$', Comment.Single)
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],
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'slashstartsregex': [
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include('commentsandwhitespace'),
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(r'/(\\.|[^[/\\\n]|\[(\\.|[^\]\\\n])*])+/'
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r'\B', String.Regex, '#pop'),
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(r'(?=/)', Text, ('#pop', 'badregex')),
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default('#pop')
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],
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'badregex': [
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(r'\n', Text, '#pop')
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],
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'root': [
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(r'^(?=\s|/)', Text, 'slashstartsregex'),
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include('commentsandwhitespace'),
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(r'\+\+|--|\|\||&&|in\b|\$|!?~|'
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r'(\*\*|[-<>+*%\^/!=|])=?', Operator, 'slashstartsregex'),
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(r'[{(\[;,]', Punctuation, 'slashstartsregex'),
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(r'[})\].]', Punctuation),
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(r'(break|continue|do|while|exit|for|if|else|'
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r'return)\b', Keyword, 'slashstartsregex'),
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(r'function\b', Keyword.Declaration, 'slashstartsregex'),
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(r'(atan2|cos|exp|int|log|rand|sin|sqrt|srand|gensub|gsub|index|'
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r'length|match|split|sprintf|sub|substr|tolower|toupper|close|'
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r'fflush|getline|next|nextfile|print|printf|strftime|systime|'
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r'delete|system)\b', Keyword.Reserved),
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(r'(ARGC|ARGIND|ARGV|BEGIN|CONVFMT|ENVIRON|END|ERRNO|FIELDWIDTHS|'
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r'FILENAME|FNR|FS|IGNORECASE|NF|NR|OFMT|OFS|ORFS|RLENGTH|RS|'
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r'RSTART|RT|SUBSEP)\b', Name.Builtin),
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(r'[$a-zA-Z_]\w*', Name.Other),
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(r'[0-9][0-9]*\.[0-9]+([eE][0-9]+)?[fd]?', Number.Float),
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(r'0x[0-9a-fA-F]+', Number.Hex),
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(r'[0-9]+', Number.Integer),
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(r'"(\\\\|\\[^\\]|[^"\\])*"', String.Double),
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(r"'(\\\\|\\[^\\]|[^'\\])*'", String.Single),
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]
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}
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class SedLexer(RegexLexer):
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"""
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Lexer for Sed script files.
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"""
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name = 'Sed'
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aliases = ['sed', 'gsed', 'ssed']
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filenames = ['*.sed', '*.[gs]sed']
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mimetypes = ['text/x-sed']
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flags = re.MULTILINE
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# Match the contents within delimiters such as /<contents>/
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_inside_delims = r'((?:(?:\\[^\n]|[^\\])*?\\\n)*?(?:\\.|[^\\])*?)'
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tokens = {
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'root': [
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(r'\s+', Whitespace),
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(r'#.*$', Comment.Single),
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(r'[0-9]+', Number.Integer),
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(r'\$', Operator),
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(r'[{};,!]', Punctuation),
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(r'[dDFgGhHlnNpPqQxz=]', Keyword),
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(r'([berRtTvwW:])([^;\n]*)', bygroups(Keyword, String.Single)),
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(r'([aci])((?:.*?\\\n)*(?:.*?[^\\]$))', bygroups(Keyword, String.Double)),
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(r'([qQ])([0-9]*)', bygroups(Keyword, Number.Integer)),
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(r'(/)' + _inside_delims + r'(/)', bygroups(Punctuation, String.Regex, Punctuation)),
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(r'(\\(.))' + _inside_delims + r'(\2)',
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bygroups(Punctuation, None, String.Regex, Punctuation)),
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(r'(y)(.)' + _inside_delims + r'(\2)' + _inside_delims + r'(\2)',
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bygroups(Keyword, Punctuation, String.Single, Punctuation, String.Single, Punctuation)),
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(r'(s)(.)' + _inside_delims + r'(\2)' + _inside_delims + r'(\2)((?:[gpeIiMm]|[0-9])*)',
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bygroups(Keyword, Punctuation, String.Regex, Punctuation, String.Single, Punctuation,
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Keyword))
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]
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}
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class VimLexer(RegexLexer):
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"""
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Lexer for VimL script files.
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.. versionadded:: 0.8
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"""
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name = 'VimL'
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aliases = ['vim']
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filenames = ['*.vim', '.vimrc', '.exrc', '.gvimrc',
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'_vimrc', '_exrc', '_gvimrc', 'vimrc', 'gvimrc']
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mimetypes = ['text/x-vim']
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flags = re.MULTILINE
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_python = r'py(?:t(?:h(?:o(?:n)?)?)?)?'
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tokens = {
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'root': [
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(r'^([ \t:]*)(' + _python + r')([ \t]*)(<<)([ \t]*)(.*)((?:\n|.)*)(\6)',
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bygroups(using(this), Keyword, Text, Operator, Text, Text,
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using(PythonLexer), Text)),
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(r'^([ \t:]*)(' + _python + r')([ \t])(.*)',
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bygroups(using(this), Keyword, Text, using(PythonLexer))),
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(r'^\s*".*', Comment),
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(r'[ \t]+', Text),
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# TODO: regexes can have other delims
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(r'/[^/\\\n]*(?:\\[\s\S][^/\\\n]*)*/', String.Regex),
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(r'"[^"\\\n]*(?:\\[\s\S][^"\\\n]*)*"', String.Double),
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(r"'[^\n']*(?:''[^\n']*)*'", String.Single),
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# Who decided that doublequote was a good comment character??
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(r'(?<=\s)"[^\-:.%#=*].*', Comment),
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(r'-?\d+', Number),
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(r'#[0-9a-f]{6}', Number.Hex),
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(r'^:', Punctuation),
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(r'[()<>+=!|,~-]', Punctuation), # Inexact list. Looks decent.
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(r'\b(let|if|else|endif|elseif|fun|function|endfunction)\b',
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Keyword),
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(r'\b(NONE|bold|italic|underline|dark|light)\b', Name.Builtin),
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(r'\b\w+\b', Name.Other), # These are postprocessed below
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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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from pygments.lexers._vim_builtins import auto, command, option
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self._cmd = command
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self._opt = option
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self._aut = auto
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RegexLexer.__init__(self, **options)
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def is_in(self, w, mapping):
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r"""
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It's kind of difficult to decide if something might be a keyword
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in VimL because it allows you to abbreviate them. In fact,
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'ab[breviate]' is a good example. :ab, :abbre, or :abbreviate are
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valid ways to call it so rather than making really awful regexps
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like::
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\bab(?:b(?:r(?:e(?:v(?:i(?:a(?:t(?:e)?)?)?)?)?)?)?)?\b
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we match `\b\w+\b` and then call is_in() on those tokens. See
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`scripts/get_vimkw.py` for how the lists are extracted.
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"""
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p = bisect(mapping, (w,))
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if p > 0:
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if mapping[p-1][0] == w[:len(mapping[p-1][0])] and \
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mapping[p-1][1][:len(w)] == w:
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return True
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if p < len(mapping):
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return mapping[p][0] == w[:len(mapping[p][0])] and \
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mapping[p][1][:len(w)] == w
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return False
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def get_tokens_unprocessed(self, text):
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# TODO: builtins are only subsequent tokens on lines
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# and 'keywords' only happen at the beginning except
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# for :au ones
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for index, token, value in \
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RegexLexer.get_tokens_unprocessed(self, text):
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if token is Name.Other:
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if self.is_in(value, self._cmd):
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yield index, Keyword, value
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elif self.is_in(value, self._opt) or \
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self.is_in(value, self._aut):
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yield index, Name.Builtin, value
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else:
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yield index, Text, value
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else:
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yield index, token, value
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