text: """
      pygments.lexers.x10
      ~~~~~~~~~~~~~~~~~~~
  
      Lexers for the X10 programming language.
  
      :copyright: Copyright 2006-2021 by the Pygments team, see AUTHORS.
      :license: BSD, see LICENSE for details.
  """
  
  import re
  
  from pygments.lexer import RegexLexer
  from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
      Number, Punctuation, Error
  
  __all__ = ['X10Lexer']
  
  class X10Lexer(RegexLexer):
      """
      For the X10 language.
  
      .. versionadded:: 0.1
      """
  
      name = 'X10'
      aliases = ['x10', 'xten']
      filenames = ['*.x10']
      mimetypes = ['text/x-x10']
  
      keywords = (
          'as', 'assert', 'async', 'at', 'athome', 'ateach', 'atomic',
          'break', 'case', 'catch', 'class', 'clocked', 'continue',
          'def', 'default', 'do', 'else', 'final', 'finally', 'finish',
          'for', 'goto', 'haszero', 'here', 'if', 'import', 'in',
          'instanceof', 'interface', 'isref', 'new', 'offer',
          'operator', 'package', 'return', 'struct', 'switch', 'throw',
          'try', 'type', 'val', 'var', 'when', 'while'
      )
  
      types = (
          'void'
      )
  
      values = (
          'false', 'null', 'self', 'super', 'this', 'true'
      )
  
      modifiers = (
          'abstract', 'extends', 'implements', 'native', 'offers',
          'private', 'property', 'protected', 'public', 'static',
          'throws', 'transient'
      )
  
      tokens = {
          'root': [
              (r'[^\S\n]+', Text),
              (r'//.*?\n', Comment.Single),
              (r'/\*(.|\n)*?\*/', Comment.Multiline),
              (r'\b(%s)\b' % '|'.join(keywords), Keyword),
              (r'\b(%s)\b' % '|'.join(types), Keyword.Type),
              (r'\b(%s)\b' % '|'.join(values), Keyword.Constant),
              (r'\b(%s)\b' % '|'.join(modifiers), Keyword.Declaration),
              (r'"(\\\\|\\[^\\]|[^"\\])*"', String),
              (r"'\\.'|'[^\\]'|'\\u[0-9a-fA-F]{4}'", String.Char),
              (r'.', Text)
          ],
      }
  