lmd/src/plugin/ie.js

LMD: Lazy Module Declaration

/**
 * @name sandbox
 */
(function (sb) {

// Simple JSON stringify
function stringify(object) {
    var properties = [];
    for (var key in object) {
        if (object.hasOwnProperty(key)) {
            properties.push(quote(key) + ':' + getValue(object[key]));
        }
    }
    return "{" + properties.join(",") + "}";
}

function getValue(value) {
    if (typeof value === "string") {
        return quote(value);
    } else if (typeof value === "boolean") {
        return "" + value;
    } else if (value.join) {
        if (value.length == 0) {
            return "[]";
        } else {
            var flat = [];
            for (var i = 0, len = value.length; i < len; i += 1) {
                flat.push(getValue(value[i]));
            }
            return '[' + flat.join(",") + ']';
        }
    } else if (typeof value === "number") {
        return value;
    } else {
        return stringify(value);
    }
}

function pad(s) {
    return '0000'.substr(s.length) + s;
}

function replacer(c) {
    switch (c) {
        case '\b': return '\\b';
        case '\f': return '\\f';
        case '\n': return '\\n';
        case '\r': return '\\r';
        case '\t': return '\\t';
        case '"': return '\\"';
        case '\\': return '\\\\';
        default: return '\\u' + pad(c.charCodeAt(0).toString(16));
    }
}

function quote(s) {
    return '"' + s.replace(/[\u0000-\u001f"\\\u007f-\uffff]/g, replacer) + '"';
}

function indexOf(item) {
    for (var i = this.length; i --> 0;) {
        if (this[i] === item) {
            return i;
        }
    }
    return -1;
}

    /**
     * @event *:request-json requests JSON polifill with only stringify function!
     *
     * @param {Object|undefined} JSON default JSON value
     *
     * @retuns yes
     */
sb.on('*:request-json', function (JSON) {
    if (typeof JSON === "object") {
        return [JSON];
    }

    return [{stringify: stringify}];
});

    /**
     * @event *:request-indexof requests indexOf polifill
     *
     * @param {Function|undefined} arrayIndexOf default indexOf value
     *
     * @retuns yes
     */
sb.on('*:request-indexof', function (arrayIndexOf) {
    if (typeof arrayIndexOf === "function") {
        return [arrayIndexOf];
    }

    return [indexOf];
});

}(sandbox));