const regex = /[^\[]+\[(?<timestamp>[^\]]+)\].*\n.*\n(?<description>.*)\n\s+\[(?<eventtype>\w+)\D+(?<eventid>\d+)\]/g;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('[^\\[]+\\[(?<timestamp>[^\\]]+)\\].*\\n.*\\n(?<description>.*)\\n\\s+\\[(?<eventtype>\\w+)\\D+(?<eventid>\\d+)\\]', 'g')
const str = `<DIV id="A">[Jan 22 20h39:02.924] - <a href="javascript://" onClick="toggle(this)">Disconnected from server 'SERVER102'</a>
<DIV id="B"><UL>
Disconnected from server SERVER102. Reason: Initiated by the Server application<P>
[Error event 8000]
</P>
</UL><HR></DIV>
</DIV>`;
// 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