const regex = new RegExp('(?<!(?=(((f|ht)tps?)\\:\\/\\/?)(www\\.?)))Nissan(?![^<\\s]+)(?=[^<>]*<)(?!(?:(?!</?(?:a|span)[ >/])(?:.|\\n))*</(?:a|span)>)', 'g')
const str = `You know odoo become now http://www.odoo.com.
Nissan is car manufacter odoocompany.
<p>Nissan</p>
<p>Nissan is company and Nissan Micra is product</p>
<p><a href="www.Nissan.com">Nissan</a> is company and <span><a href="www.Nissan.com">Nissan</a></span> Micra is product</p>
<p><span>Nissan</span></p>
<p>Nissan is product <a href="nissan.com">Nissan</a> ignore Nissan</p>
<p><a href="nissan.com"><span>Nissan</span></a></p>
<p>odoo is a name Company and Nissan Micra is a model of best selling.</p>
Company Nissan is a name. and Nissan Micra is model name.
Company <a href="nissan.com"><span>Nissan</span></a> is a name. and Nissan Micra is model name.
This is new <a href='https://www.url.com'><span>URL</span></a>.<br /> Company Nissan is a name. and Nissan Micra is model name. </p>`;
// 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