phpjs
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JavaScript
function nl2br(str, is_xhtml) {
// From: http://phpjs.org/functions
// + original by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
// + improved by: Philip Peterson
// + improved by: Onno Marsman
// + improved by: Atli Þór
// + bugfixed by: Onno Marsman
// + input by: Brett Zamir (http://brett-zamir.me)
// + bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
// + improved by: Brett Zamir (http://brett-zamir.me)
// + improved by: Maximusya
// * example 1: nl2br('Kevin\nvan\nZonneveld');
// * returns 1: 'Kevin<br />\nvan<br />\nZonneveld'
// * example 2: nl2br("\nOne\nTwo\n\nThree\n", false);
// * returns 2: '<br>\nOne<br>\nTwo<br>\n<br>\nThree<br>\n'
// * example 3: nl2br("\nOne\nTwo\n\nThree\n", true);
// * returns 3: '<br />\nOne<br />\nTwo<br />\n<br />\nThree<br />\n'
var breakTag = (is_xhtml || typeof is_xhtml === 'undefined') ? '<br ' + '/>' : '<br>'; // Adjust comment to avoid issue on phpjs.org display
return (str + '').replace(/([^>\r\n]?)(\r\n|\n\r|\r|\n)/g, '$1' + breakTag + '$2');
}