Iavra Text Eval

/*:
 * @plugindesc v1.00 Adds a new escape code, that allows to insert arbitrary script calls inside text (for example messages).
 * <Iavra Text Eval>
 * @author Iavra
 *
 * @param Escape Code
 * @desc Code to be used to insert evaluated expressions. "code" serves as a placeholder for the expression.
 * @default #{code}
 *
 * @help
 * After activating the plugin, you can use javascript inside text by surrounding it with the escape code defined in
 * the plugin parameter "Escape Code". So the following example:
 *
 * "Actor 1 has #{$gameActors.actors(1).atk} attack."
 *
 * Would show the attack value of actor number 1. The escape code has been made configurable, since it might already be
 * used by a different plugin and, depending on the javascript code used, some characters might not be usable.
 */
(function ($, undefined) {
    "use strict";

    var _params = $plugins.filter(function (p) { return p.description.contains('<Iavra Text Eval>'); })[0].parameters;
    var _param_escapeCode = _params['Escape Code'];

    var _regex = new RegExp(_param_escapeCode.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&").replace('code', '([\\S\\s]+?)'), 'g');

    var alias_windowBase_convertEscapeCharacters = $.prototype.convertEscapeCharacters;

    Window_Base.prototype.convertEscapeCharacters = function (text) {
        return alias_windowBase_convertEscapeCharacters.call(this, text.replace(_regex, function (m, c) { return eval(c); }));
    };

})(this.IAVRA || (this.IAVRA = {}));