add: if (!this.host) return this.unicodeName + "!*@*";  
context: function usr_banmask(){    var hostmask = this.host;    if (!/^\d+\.\d+\.\d+\.\d+$/.test(hostmask))        hostmask = hostmask.replace(/^[^.]+/, "*");    else        hostmask = hostmask.replace(/[^.]+$/, "*");    return "*!" + this.name + "@" + hostmask;}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/5756a51e62112f9293edf5964d1182c7e5b4292e/irc.js/buggy/extensions/irc/js/lib/irc.js