all files / montage/core/converter/ trim-converter.js

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/**
 * @module montage/core/converter/trim-converter
 * @requires montage/core/converter/converter
 */
var Converter = require("./converter").Converter;
 
 
/**
 * Trims a string of any leading or trailing white space.
 * @memberof module:montage/core/converter#
 * @function
 * @param {string} str String to be trimmed.
 * @returns {string} The trimmed string.
 */
var trim = exports.trim = function (str) {
    // from Google Closure library
    // Since IE doesn't include non-breaking-space (0xa0) in their \s character
    // class (as required by section 7.2 of the ECMAScript spec), we explicitly
    // include it in the regexp to enforce consistent cross-browser behavior.
    return str.replace(/^[\s\xa0]+|[\s\xa0]+$/g, '');
};
 
/**
 * @class TrimConverter
 * @classdesc Trims a string of white space.
 * @example
 * <caption>Removes leading and trailing white space from a string.</caption>
 * var Converter= require("./converter").Converter,
 * TrimConverter = require("./converter").TrimConverter;
 * var str = "      Hello World     ";
 * var trimConverter = new TrimConverter();
 * console.log("After trim: " + trimConverter.convert(str));
 * // After trim: Hello World
 */
exports.TrimConverter = Converter.specialize( /** @lends TrimConverter# */ {
 
    _convert: {
        value: function (v) {
            Eif (v && typeof v === 'string') {
                return trim(v);
            }
        }
    },
 
    /**
     * Trims the provided string and returns the new string.
     * @function
     * @param {string} v The string to trim.
     * @returns this._convert(v)
     */
    convert: {value: function (v) {
        return this._convert(v);
    }},
 
    /**
     * Reverts the conversion.
     * @function
     * @param {string} v The string to revert.
     * @returns this._convert(v)
     */
    revert: {value: function (v) {
        return this._convert(v);
    }}
 
});