28 lines
801 B
JavaScript
28 lines
801 B
JavaScript
var defaults = require('./defaults');
|
|
var isUndef = require('./isUndef');
|
|
exports = function(txt, width) {
|
|
var options =
|
|
arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
|
|
defaults(options, defOptions);
|
|
var ellipsis = options.ellipsis,
|
|
separator = options.separator;
|
|
var len = txt.length;
|
|
if (width > len) return txt;
|
|
var end = width - ellipsis.length;
|
|
if (end < 1) return ellipsis;
|
|
var ret = txt.slice(0, end);
|
|
if (isUndef(separator)) return ret + ellipsis;
|
|
if (txt.indexOf(separator, end) !== end) {
|
|
var idx = ret.lastIndexOf(separator);
|
|
if (idx > -1) {
|
|
ret = ret.slice(0, idx);
|
|
}
|
|
}
|
|
return ret + ellipsis;
|
|
};
|
|
var defOptions = {
|
|
ellipsis: '...'
|
|
};
|
|
|
|
module.exports = exports;
|