rem: return "label=regexp:" + label.replace(/\s+/g, function(str) { if (str.match(/\xA0/)) { if (str.length > 1) { return "\\s+"; } else { return "\\s"; } } else { return str; } }); 
add: return "label=regexp:" + label.replace(/[\(\)\[\]\\\^\$\*\+\?\.\|\{\}]/g, function(str) {return '\\' + str}) 
context:         return "label=regexp:" + label.replace(/\s+/g, function(str) {                if (str.match(/\xA0/)) {                    if (str.length > 1) {                        return "\\s+";                    } else {                        return "\\s";                    }                } else {                    return str;                }            });
meta: 3428	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/3428/48a39914f9ae277dd86c2a30b4fba104f24b8752/recorder-handlers.js/clean/src/content/recorder-handlers.js