快速取得option的值

[RubyLouvre]

            function getVal(strOption) {
                var re_attr = /\s+(\w+)(?:\s*=\s*("[^"]*"|'[^']*'|[^\s>]+))?/g;
                var re = RegExp('<option((?:' + re_attr.source + ')*)\\s*>([\\s\\S]*?)<\/option>', 'i');
                var a = re.exec(strOption);
                if (a) {
                    var t;
                    while (t = re_attr.exec(a[1])) {
                        if (t[1].toLowerCase() == 'value') {
                            var val = t[2];
                            if (val.length > 1) {
                                var c1 = val.charAt(0);
                                var c2 = val.charAt(val.length - 1);
                                if (c1 == '"' && c2 == '"' || c1 == "'" && c2 == "'")
                                    val = val.slice(1, -1);
                            }
                            return val;
                        }
                    }
                    return a[4];
                }
            }
            var a = ["<option value='xxx' id=ppp>rrrr</option>",
                "<option  id=ppp>rrrr</option>",
                "<option xxx=\"value='dd'\" id=ppp>rrrr</option>",
                "<option value=77d id=ppp>rrrr</option>"];
            for (var i = 0; i < a.length; ++i)
                a[i] = getVal(a[i]);
            alert(a.join('\n'));

[RubyLouvre]

function hasValueAttr(strOption) {
            return /^<option(?:\s+\w+(?:\s*=\s*(?:"[^"]*"|'[^']*'|[^\s>]+))?)*\s+value[\s=]/i.test(strOption);
        }

[RubyLouvre]

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