const regex = /(var preferences = {)[\s\S]*(};)/mg;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('(var preferences = {)[\\s\\S]*(};)', 'mg')
const str = `<!DOCTYPE html>
<html>
<head>
<meta http-equiv='x-ua-compatible' content='IE=edge,chrome=1' />
<meta name="robots" content="nofollow" />
<meta name="robots" content="noindex" />
<meta name="robots" content="noarchive" />
<meta http-equiv="Cache-Control" content="private, no-cache, no-store, must-revalidate, max-age=0" />
<meta http-equiv="Pragma" content="no-cache" />
<meta http-equiv="Expires" content="0" />
<meta http-equiv="Expires" content="Tue, 01 Jan 1980 1:00:00 GMT" />
<meta charset='UTF-8' />
<title>BLANK - FILL WITH CLIENT TITLE</title>
<link href='css/bpdev.css' rel='stylesheet' type='text/css' />
<script src='https://code.jquery.com/jquery-1.11.1.min.js'></script>
<script>!window.jQuery && document.write('<script src="common/js/jquery/jquery-1.11.1.min.js"><\\/script>');</script>
<link rel='shortcut icon' href='images/favicon.ico' type='image/x-icon' />
<style id="antiClickjack">body{display:none !important;}</style>
</head>
<body id='userTools'>
<div id='notificationContainer' data-automation='notification_window'></div>
<div id='overlay' class='modalOverlay' data-automation='modal_overlay'></div>
<div id='dialog' class='modal' data-automation='modal_window'></div>
<div id='container'>
<div id='header' data-automation='header'></div>
<div id='loader' data-automation='content_loader'></div>
<div id='content' data-automation='content_area'></div>
</div>
<div id='copyFooter' class='copyright' data-automation='copyright_footer'></div>
<script src='common/js/gateway.framework-min.js' type='text/javascript'></script>
<script src='common/js/gateway.app-min.js' type='text/javascript'></script>
<script type='text/javascript'>
if (self === top) {
var antiClickjack = document.getElementById('antiClickjack');
antiClickjack.parentNode.removeChild(antiClickjack);
} else {
top.location = self.location;
}
(function(\$) {
var preferences = {
logo : 'images/logo.png',
logoWidth : 250,
logoHeight : 38,
logoAlt : '',
logoLink : '',
logoutURL : '../../pkmslogout'
};
Gateway.startGateway(preferences, true);
}(jQuery));
</script>
</body>
</html>`;
// Reset `lastIndex` if this regex is defined globally
// regex.lastIndex = 0;
let m;
while ((m = regex.exec(str)) !== null) {
// This is necessary to avoid infinite loops with zero-width matches
if (m.index === regex.lastIndex) {
regex.lastIndex++;
}
// The result can be accessed through the `m`-variable.
m.forEach((match, groupIndex) => {
console.log(`Found match, group ${groupIndex}: ${match}`);
});
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for JavaScript, please visit: https://developer.mozilla.org/en/docs/Web/JavaScript/Guide/Regular_Expressions