Mojo: Mojom: Remove support for octal.

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

Index: mojo/public/tools/bindings/pylib/mojom/parse/lexer.py
diff --git a/mojo/public/tools/bindings/pylib/mojom/parse/lexer.py b/mojo/public/tools/bindings/pylib/mojom/parse/lexer.py
index f4769e73737eaa2b9a874da6847f9a24c4367462..ad13311edef7c3bd6914c09c6d7a5afa2954a9b4 100644
--- a/mojo/public/tools/bindings/pylib/mojom/parse/lexer.py
+++ b/mojo/public/tools/bindings/pylib/mojom/parse/lexer.py
@@ -79,7 +79,7 @@ class Lexer(object):
 
     # Constants
     'ORDINAL',
-    'INT_CONST_DEC', 'INT_CONST_OCT', 'INT_CONST_HEX',
+    'INT_CONST_DEC', 'INT_CONST_HEX',
     'FLOAT_CONST',
     'CHAR_CONST',
 
@@ -117,10 +117,9 @@ class Lexer(object):
 
   # integer constants (K&R2: A.2.5.1)
   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]'
+  # Don't allow octal constants (even invalid octal).
+  octal_constant_disallowed = '0[0-9]+'
 
   # character constants (K&R2: A.2.5.2)
   # Note: a-zA-Z and '.-~^_!=&;,' are allowed as escape chars to support #line
@@ -219,15 +218,11 @@ class Lexer(object):
   def t_INT_CONST_HEX(self, t):
     return t
 
-  @TOKEN(bad_octal_constant)
-  def t_BAD_CONST_OCT(self, t):
-    msg = "Invalid octal constant"
+  @TOKEN(octal_constant_disallowed)
+  def t_OCTAL_CONSTANT_DISALLOWED(self, t):
+    msg = "Octal values not allowed"
     self._error(msg, t)
 
-  @TOKEN(octal_constant)
-  def t_INT_CONST_OCT(self, t):
-    return t
-
   @TOKEN(decimal_constant)
   def t_INT_CONST_DEC(self, t):
     return t