function lastBraceInKey()

in js/libs/purl-2.3.1/purl.js [160:170]


    function lastBraceInKey(str) {
        var len = str.length,
            brace,
            c;
        for (var i = 0; i < len; ++i) {
            c = str[i];
            if (']' == c) brace = false;
            if ('[' == c) brace = true;
            if ('=' == c && !brace) return i;
        }
    }