/*
* String Builder
**************************************************************/

// Assign our class to Array class
var StringBuilderEx = Array;

// Using prototype I link function append to push
Array.prototype.append = Array.prototype.push;

// First solution using regular expression
Array.prototype.appendFormat = function(pattern) {
    var args = this._convertToArray(arguments).slice(1);

    this[this.length] = pattern.replace(/\{(\d+)\}/g,
        function(pattern, index) {
            return args[index].toString();
        });
};

// Second solution using split and join
Array.prototype.appendFormatEx = function(pattern) {
    if (this._parameters == null)
        this._parameters = new Array();

    var args = this._convertToArray(arguments).slice(1);

    for (var t = 0, len = args.length; t < len; t++) {
        this._parameters[this._parameters.length] = args[t];
    }

    this[this.length] = pattern;
};

// Used to convert arguments in array
Array.prototype._convertToArray = function(arguments) {
    if (!arguments)
        return new Array();

    if (arguments.toArray)
        return arguments.toArray();

    var len = arguments.length
    var results = new Array(len);

    while (len--) {
        results[len] = arguments[len];
    }

    return results;
};

// Concatenate the strings using join (some lines of code are relay with second solution)
Array.prototype.toString = function() {
    var hasParameters = this._parameters != null;
    hasParameters = hasParameters && this._parameters.length > 0;

    if (hasParameters) {
        var values = this.join("").split('?');
        var tempBuffer = new Array();

        for (var t = 0, len = values.length; t < len; t++) {
            tempBuffer[tempBuffer.length] = values[t];
            tempBuffer[tempBuffer.length] = this._parameters[t];
        }

        return tempBuffer.join("");
    }
    else {
        return this.join("");
    }
};