class StringUtils
{

    //--------------------------
    // constructor
    //--------------------------
    constructor()
    {}
    //--------------------------
    // methods
    //--------------------------
    cleanString(string)
    {
        var clean = string.replace(/(^\-+|[^a-zA-Z0-9\/_| -]+|\-+$)/g, '').toLowerCase().replace(/[\/_| -]+/g, '-');
        return clean;
    }

    decodeHTML(string, quote_style) {
        var optTemp = 0,
            i = 0,
            noquotes = false;
        if (typeof quote_style === 'undefined') {
            quote_style = 2;
        }
        string = string.toString().replace(/&lt;/g, '<').replace(/&gt;/g, '>');
        var OPTS = {
            'ENT_NOQUOTES': 0,
            'ENT_HTML_QUOTE_SINGLE': 1,
            'ENT_HTML_QUOTE_DOUBLE': 2,
            'ENT_COMPAT': 2,
            'ENT_QUOTES': 3,
            'ENT_IGNORE': 4
        };
        if (quote_style === 0) {
            noquotes = true;
        }
        if (typeof quote_style !== 'number') { // Allow for a single string or an array of string flags
            quote_style = [].concat(quote_style);
            for (i = 0; i < quote_style.length; i++) {
                // Resolve string input to bitwise e.g. 'PATHINFO_EXTENSION' becomes 4
                if (OPTS[quote_style[i]] === 0) {
                    noquotes = true;
                } else if (OPTS[quote_style[i]]) {
                    optTemp = optTemp | OPTS[quote_style[i]];
                }
            }
            quote_style = optTemp;
        }
        if (quote_style & OPTS.ENT_HTML_QUOTE_SINGLE) {
            string = string.replace(/&#0*39;/g, "'"); // PHP doesn't currently escape if more than one 0, but it should
            // string = string.replace(/&apos;|&#x0*27;/g, "'"); // This would also be useful here, but not a part of PHP
        }
        if (!noquotes) {
            string = string.replace(/&quot;/g, '"');
        }
        // Put this in last place to avoid escape being double-decoded
        string = string.replace(/&amp;/g, '&');
        return string;
    }

        //--------------------------
        // event handlers
        //--------------------------
}
export default StringUtils