Error when article name is a UTF-8 string or contains some UTF-8 characters

[zwcloud]

When article name is a UTF-8 string or contains some UTF-8 characters,

gajus.contents.id(articleName)

will return a empty string, which leads to the Error('Invalid ID.')

My temporary solution:
Implement the function contents.formatId like below

contents.formatId = function (str) {
    if (!str.match(/^[a-z]+[a-z0-9\-_:\.]*$/)) {
        return "hash" + str.hashCode();
    }
};

Then gajus/contents works perfectly.

PS:
The implementation of str.hashCode()

String.prototype.hashCode = function () {
    var hash = 0, i, chr, len;
    if (this.length == 0) return hash;
    for (i = 0, len = this.length; i < len; i++) {
        chr = this.charCodeAt(i);
        hash = ((hash << 5) - hash) + chr;
        hash |= 0; // Convert to 32bit integer
    }
    return hash;
};