[css2] Only check for duplicate words that start with a letter.

--HG--
extra : convert_revision : svn%3A73dc7c4b-06e6-40f3-b4f7-9ed1dbc14bfc/trunk%402930

Author: bert-github

css2/bin/chkspaces

@@ -2,7 +2,7 @@
 # Check for lack of space before a start tag and
 # after and end tag.
 # Ian Jacobs
-# $Id: chkspaces,v 1.9 2006-10-09 18:55:52 ihickson Exp $
+# $Id: chkspaces,v 1.10 2009-04-20 13:40:26 bbos Exp $
 
 $PROGNAME = substr($0, rindex($0, "/") + 1);
 
@@ -22,7 +22,7 @@ sub readfile {
 $pattern1 = "(<\\/[^>]+>\\w+)";
 $pattern2 = "(\\w(?:<(\\w+)\\s*[^>]*>)+)";
 # Check for duplicate words.
-$pattern3 = "(\\b(\\w+)(?:\\s+|\\s*(?:<[^>]+>)+\\s*|\\s*(?:<\\/[^>]+>)+\\s*)\\2\\b)";
+$pattern3 = "(\\b([a-z]\\w*)(?:\\s+|\\s*(?:<[^>]+>)+\\s*|\\s*(?:<\\/[^>]+>)+\\s*)\\2\\b)";
 
 foreach $file (@ARGV) {
     print STDOUT "Checking $file\n";