/*global Autolinker */
/**
* Date: 2015-10-05
* Author: Kasper Søfren <soefritz@gmail.com> (https://github.com/kafoso)
*
* A truncation feature, where the ellipsis will be placed in the dead-center of the URL.
*
* @param {String} url A URL.
* @param {Number} truncateLen The maximum length of the truncated output URL string.
* @param {String} ellipsisChars The characters to place within the url, e.g. "..".
* @return {String} The truncated URL.
*/
Autolinker.truncate.TruncateMiddle = function(url, truncateLen, ellipsisChars){
if (url.length <= truncateLen) {
return url;
}
var availableLength = truncateLen - ellipsisChars.length;
var end = "";
if (availableLength > 0) {
end = url.substr((-1)*Math.floor(availableLength/2));
}
return (url.substr(0, Math.ceil(availableLength/2)) + ellipsisChars + end).substr(0, truncateLen);
};