old_contents: from pygments.lexer import RegexLexer
  from pygments.token import *
  
  __all__ = ['AqlLexer']
  
  class AqlLexer(RegexLexer):
      name = 'AQL'
      aliases = ['aql']
      filenames = ['*.txt', '*.aql']
  
      tokens = {
          'root': [
              (r'"', String, 'string'),
              (r'/', String.Regex, 'regex'),
              (r'&', Operator),
              (r'([a-zA-Z_%]([a-zA-Z0-9_\-%])*:)?([a-zA-Z_\%]([a-zA-Z0-9_\-%])*)', Name.Variable),
              (r'(==)|(_=_)|(_i_)|(_o_)|(_l_)|(_r_)|(_ol_)|(_or_)', Operator),
              (r'>([a-zA-Z_%][a-zA-Z0-9_\-%]*)?(@(l|r)?)', Operator),
              (r'((\.)|(\^)|(->)|(>))([a-zA-Z_%][a-zA-Z0-9_\-%]*)?(\s*(\*)|([ \t,0-9]+))?', Operator),
              (r'(==)|(_=_)|(_i_)|(_o_)|(_l_)|(_r_)|(_ol_)|(_or_)', Operator),
              (r'#[0-9a-zA-Z]+', Name.Label),
              (r'.', Text)
              
          ],
          'string': [
  			(r'"', String, 'root'),
  			(r'.', String)
          ], 
          'regex': [
  			(r'/', String.Regex, 'root'),
  			(r'.', String.Regex)
          ]
      }
  
new_contents: from pygments.lexer import RegexLexer
  from pygments.token import *
  
  __all__ = ['AqlLexer']
  
  class AqlLexer(RegexLexer):
      name = 'AQL'
      aliases = ['aql']
      filenames = ['*.txt', '*.aql']
  
      tokens = {
          'root': [
              (r'"', String, 'string'),
              (r'/', String.Regex, 'regex'),
              (r'/\*', String.Comment, 'comment'),
              (r'&', Operator),
              (r'([a-zA-Z_%]([a-zA-Z0-9_\-%])*:)?([a-zA-Z_\%]([a-zA-Z0-9_\-%])*)', Name.Variable),
              (r'(==)|(_=_)|(_i_)|(_o_)|(_l_)|(_r_)|(_ol_)|(_or_)', Operator),
              (r'>([a-zA-Z_%][a-zA-Z0-9_\-%]*)?(@(l|r)?)', Operator),
              (r'((\.)|(\^)|(->)|(>))([a-zA-Z_%][a-zA-Z0-9_\-%]*)?(\s*(\*)|([ \t,0-9]+))?', Operator),
              (r'(==)|(_=_)|(_i_)|(_o_)|(_l_)|(_r_)|(_ol_)|(_or_)', Operator),
              (r'#[0-9a-zA-Z]+', Name.Label),
              (r'.', Text)
              
          ],
          'string': [
  			(r'"', String, 'root'),
  			(r'.', String)
          ], 
          'regex': [
  			(r'/', String.Regex, 'root'),
  			(r'.', String.Regex)
          ],
          'comment': [
  			(r'\*/', String.Comment, 'root'),
  			(r'.', String.Comment)
          ]
      }
  
subject: allow comments