ext/pcodehl.py

   1
   2 from pygments.lexer import RegexLexer, include, bygroups, using, this
   3 from pygments.token import *
   4
   5 class PseudoCodeLexer(RegexLexer):
   6     name = 'PseudoCode'
   7     aliases = ['pcode']
   8     filenames = ['*.pcode']
   9
  10     #: optional Comment or Whitespace
  11     _ws = r'(?:\s|//.*?\n|/[*].*?[*]/)+'
  12
  13     tokens = {
  14         'whitespace': [
  15             (r'\n', Text),
  16             (r'\s+', Text),
  17             (r'\\\n', Text), # line continuation
  18             (r'//(\n|(.|\n)*?[^\\]\n)', Comment.Single),
  19             (r'/(\\\n)?[*](.|\n)*?[*](\\\n)?/', Comment.Multiline),
  20         ],
  21         'statements': [
  22             (r'L?"', String, 'string'),
  23             (r"L?'(\\.|\\[0-7]{1,3}|\\x[a-fA-F0-9]{1,2}|[^\\\'\n])'", String.Char),
  24             (r'(\d+\.\d*|\.\d+|\d+)[eE][+-]?\d+[lL]?', Number.Float),
  25             (r'(\d+\.\d*|\.\d+|\d+[fF])[fF]?', Number.Float),
  26             (r'0x[0-9a-fA-F]+[Ll]?', Number.Hex),
  27             (r'0[0-7]+[Ll]?', Number.Oct),
  28             (r'\d+[Ll]?', Number.Integer),
  29             (r'\*/', Error),
  30             (r'[~!%^&*+=|?:<>/-]', Operator),
  31             (r'[()\[\],.]', Punctuation),
  32             (r'(auto|break|continue|else|function|is|in|not|and|or|while|'
  33              r'foreach|if|return|throw|do|cast)\b', Keyword),
  34             (r'(true|false|null|global|exit|fflush|fork|wait|try_wait)\b',
  35                 Name.Builtin),
  36             ('[a-zA-Z_][a-zA-Z0-9_]*', Name),
  37         ],
  38         'root': [
  39             include('whitespace'),
  40             ('', Text, 'statement'),
  41         ],
  42         'statement' : [
  43             include('whitespace'),
  44             include('statements'),
  45             ('[{}]', Punctuation),
  46             (';', Punctuation, '#pop'),
  47         ],
  48         'string': [
  49             (r'"', String, '#pop'),
  50             (r'\\([\\abfnrtv"\']|x[a-fA-F0-9]{2,4}|[0-7]{1,3})', String.Escape),
  51             (r'[^\\"\n]+', String), # all other characters
  52             (r'\\\n', String), # line continuation
  53             (r'\\', String), # stray backslash
  54         ],
  55     }
  56
  57 def setup(app):
  58     from sphinx.highlighting import lexers
  59     lexers['pcode'] = PseudoCodeLexer()
  60
  61 # vim: set et sw=4 sts=4 :