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diff --git a/skins/vector/cssjanus/csslex.py b/skins/vector/cssjanus/csslex.py
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+#!/usr/bin/python
+#
+# Copyright 2007 Google Inc. All Rights Reserved.
+
+"""CSS Lexical Grammar rules.
+
+CSS lexical grammar from http://www.w3.org/TR/CSS21/grammar.html
+"""
+
+__author__ = ['elsigh@google.com (Lindsey Simon)',
+              'msamuel@google.com (Mike Samuel)']
+
+# public symbols
+__all__ = [ "NEWLINE", "HEX", "NON_ASCII", "UNICODE", "ESCAPE", "NMSTART", "NMCHAR", "STRING1", "STRING2", "IDENT", "NAME", "HASH", "NUM", "STRING", "URL", "SPACE", "WHITESPACE", "COMMENT", "QUANTITY", "PUNC" ]
+
+# The comments below are mostly copied verbatim from the grammar.
+
+# "@import"               {return IMPORT_SYM;}
+# "@page"                 {return PAGE_SYM;}
+# "@media"                {return MEDIA_SYM;}
+# "@charset"              {return CHARSET_SYM;}
+KEYWORD = r'(?:\@(?:import|page|media|charset))'
+
+# nl                      \n|\r\n|\r|\f ; a newline
+NEWLINE = r'\n|\r\n|\r|\f'
+
+# h                       [0-9a-f]      ; a hexadecimal digit
+HEX = r'[0-9a-f]'
+
+# nonascii                [\200-\377]
+NON_ASCII = r'[\200-\377]'
+
+# unicode                 \\{h}{1,6}(\r\n|[ \t\r\n\f])?
+UNICODE = r'(?:(?:\\' + HEX + r'{1,6})(?:\r\n|[ \t\r\n\f])?)'
+
+# escape                  {unicode}|\\[^\r\n\f0-9a-f]
+ESCAPE = r'(?:' + UNICODE + r'|\\[^\r\n\f0-9a-f])'
+
+# nmstart                 [_a-z]|{nonascii}|{escape}
+NMSTART = r'(?:[_a-z]|' + NON_ASCII + r'|' + ESCAPE + r')'
+
+# nmchar                  [_a-z0-9-]|{nonascii}|{escape}
+NMCHAR = r'(?:[_a-z0-9-]|' + NON_ASCII + r'|' + ESCAPE + r')'
+
+# ident                   -?{nmstart}{nmchar}*
+IDENT = r'-?' + NMSTART + NMCHAR + '*'
+
+# name                    {nmchar}+
+NAME = NMCHAR + r'+'
+
+# hash
+HASH = r'#' + NAME
+
+# string1                 \"([^\n\r\f\\"]|\\{nl}|{escape})*\"  ; "string"
+STRING1 = r'"(?:[^\"\\]|\\.)*"'
+
+# string2                 \'([^\n\r\f\\']|\\{nl}|{escape})*\'  ; 'string'
+STRING2 = r"'(?:[^\'\\]|\\.)*'"
+
+# string                  {string1}|{string2}
+STRING = '(?:' + STRING1 + r'|' + STRING2 + ')'
+
+# num                     [0-9]+|[0-9]*"."[0-9]+
+NUM = r'(?:[0-9]*\.[0-9]+|[0-9]+)'
+
+# s                       [ \t\r\n\f]
+SPACE = r'[ \t\r\n\f]'
+
+# w                       {s}*
+WHITESPACE = '(?:' + SPACE + r'*)'
+
+# url special chars
+URL_SPECIAL_CHARS = r'[!#$%&*-~]'
+
+# url chars               ({url_special_chars}|{nonascii}|{escape})*
+URL_CHARS = r'(?:%s|%s|%s)*' % (URL_SPECIAL_CHARS, NON_ASCII, ESCAPE)
+
+# url
+URL = r'url\(%s(%s|%s)%s\)' % (WHITESPACE, STRING, URL_CHARS, WHITESPACE)
+
+# comments
+# see http://www.w3.org/TR/CSS21/grammar.html
+COMMENT = r'/\*[^*]*\*+([^/*][^*]*\*+)*/'
+
+# {E}{M}             {return EMS;}
+# {E}{X}             {return EXS;}
+# {P}{X}             {return LENGTH;}
+# {C}{M}             {return LENGTH;}
+# {M}{M}             {return LENGTH;}
+# {I}{N}             {return LENGTH;}
+# {P}{T}             {return LENGTH;}
+# {P}{C}             {return LENGTH;}
+# {D}{E}{G}          {return ANGLE;}
+# {R}{A}{D}          {return ANGLE;}
+# {G}{R}{A}{D}       {return ANGLE;}
+# {M}{S}             {return TIME;}
+# {S}                {return TIME;}
+# {H}{Z}             {return FREQ;}
+# {K}{H}{Z}          {return FREQ;}
+# %                  {return PERCENTAGE;}
+UNIT = r'(?:em|ex|px|cm|mm|in|pt|pc|deg|rad|grad|ms|s|hz|khz|%)'
+
+# {num}{UNIT|IDENT}                   {return NUMBER;}
+QUANTITY = '%s(?:%s%s|%s)?' % (NUM, WHITESPACE, UNIT, IDENT)
+
+# "<!--"                  {return CDO;}
+# "-->"                   {return CDC;}
+# "~="                    {return INCLUDES;}
+# "|="                    {return DASHMATCH;}
+# {w}"{"                  {return LBRACE;}
+# {w}"+"                  {return PLUS;}
+# {w}">"                  {return GREATER;}
+# {w}","                  {return COMMA;}
+PUNC =  r'<!--|-->|~=|\|=|[\{\+>,:;]'