dist/layouts.js
function isSpecial(key) {
    if (key.length > 1) {
        return !!exports.specialKeys.filter(function (specialKey) {
            var pattern = new RegExp("^(" + specialKey + ")(:(\\d+(\\.\\d+)?))?$", 'g');
            return pattern.test(key);
        }).length;
    }
    return false;
}
function isSpecial(key) {
    if (key.length > 1) {
        return !!exports.specialKeys.filter(function (specialKey) {
            var pattern = new RegExp("^(" + specialKey + ")(:(\\d+(\\.\\d+)?))?$", 'g');
            return pattern.test(key);
        }).length;
    }
    return false;
}
function isSpecial ( key ) { if ( key . length > 1 ) { return ! ! exports . specialKeys . filter ( function ( specialKey ) { var pattern = new RegExp ( "^(" + specialKey + ")(:(\\d+(\\.\\d+)?))?$" , 'g' ) ; return pattern . test ( key ) ; } ) . length ; } return false ; }
Helper function to determine if given key is special or not.

@param {string}  key
@returns {boolean}
Helper function to determine if given key is special or not .