Mojo: Mojom: Remove integer suffixes (e.g., u, l, ul, etc.).

mojo/public/tools/bindings/pylib/mojom/parse/lexer.py

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import imp
 import os.path
 import sys
 
 # Disable lint check for finding modules:
 # pylint: disable=F0401
@@ skipping 102 matching lines @@
   ## Regexes for use in tokens
   ##
 
   # valid C identifiers (K&R2: A.2.3)
   identifier = r'[a-zA-Z_][0-9a-zA-Z_]*'
 
   hex_prefix = '0[xX]'
   hex_digits = '[0-9a-fA-F]+'
 
   # integer constants (K&R2: A.2.5.1)
-  integer_suffix_opt = \
-      r'(([uU]ll)|([uU]LL)|(ll[uU]?)|(LL[uU]?)|([uU][lL])|([lL][uU]?)|[uU])?'
-  decimal_constant = \
-      '(0'+integer_suffix_opt+')|([1-9][0-9]*'+integer_suffix_opt+')'
-  octal_constant = '0[0-7]*'+integer_suffix_opt
-  hex_constant = hex_prefix+hex_digits+integer_suffix_opt
+  decimal_constant = '0|([1-9][0-9]*)'
+  octal_constant = '0[0-7]+'
+  hex_constant = hex_prefix+hex_digits
 
   bad_octal_constant = '0[0-7]*[89]'
 
   # character constants (K&R2: A.2.5.2)
   # Note: a-zA-Z and '.-~^_!=&;,' are allowed as escape chars to support #line
   # directives with Windows paths as filenames (..\..\dir\file)
   # For the same reason, decimal_escape allows all digit sequences. We want to
   # parse all correct code, even if it means to sometimes parse incorrect
   # code.
   #
@@ skipping 145 matching lines @@
     return t
 
   # Ignore C and C++ style comments
   def t_COMMENT(self, t):
     r'(/\*(.|\n)*?\*/)|(//.*(\n[ \t]*//.*)*)'
     pass
 
   def t_error(self, t):
     msg = 'Illegal character %s' % repr(t.value[0])
     self._error(msg, t)