fail-in-regex.js

var Expr = Sizzle.selectors = {
  order: [ "ID", "NAME", "TAG" ],
  match: {
    ID: /#((?:[\w\u00c0-\uFFFF_-]|\\.)+)/,
    CLASS: /\.((?:[\w\u00c0-\uFFFF_-]|\\.)+)/,
    NAME: /\[name=['"]*((?:[\w\u00c0-\uFFFF_-]|\\.)+)['"]*\]/,
    ATTR: /\[\s*((?:[\w\u00c0-\uFFFF_-]|\\.)+)\s*(?:(\S?=)\s*(['"]*)(.*?)\3|)\s*\]/,
    TAG: /^((?:[\w\u00c0-\uFFFF\*_-]|\\.)+)/,
    CHILD: /:(only|nth|last|first)-child(?:\((even|odd|[\dn+-]*)\))?/,
    POS: /:(nth|eq|gt|lt|first|last|even|odd)(?:\((\d*)\))?(?=[^-]|$)/,
    PSEUDO: /:((?:[\w\u00c0-\uFFFF_-]|\\.)+)(?:\((['"]*)((?:\([^\)]+\)|[^\2\(\)]*)+)\2\))?/
  }
}

fix.diff

--- a/pygments/lexers/web.py	Sun Jan 04 22:41:03 2009 +0100
+++ b/pygments/lexers/web.py	Thu Jan 15 11:52:01 2009 -0800
@@ -44,7 +44,7 @@
             (r'//.*?\n', Comment),
             (r'/\*.*?\*/', Comment),
             (r'/(\\\\|\\/|[^/\n])*/[gim]+\b', String.Regex),
-            (r'/(\\\\|\\/|[^/\n])*/(?=\s*[,);])', String.Regex),
+            (r'/(\\\\|\\/|[^/\n])*/(?=\s*[,);\n])', String.Regex),
             (r'/(\\\\|\\/|[^/\n])*/(?=\s*\.[a-z])', String.Regex),
             (r'[~\^\*!%&<>\|+=:;,/?\\-]+', Operator),
             (r'[{}\[\]();.]+', Punctuation),