const regex = /^(?<time>\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}\.\d{3}) +\[(?<thread>[^ ]+)\] +(?<severity>[^ ]+) +\[\]\[(?<request_id>[^ ]*)\]\[\] +(?<class>[^ :]*) +- +(?<log>.*)$/gm;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('^(?<time>\\d{4}-\\d{2}-\\d{2} \\d{2}:\\d{2}:\\d{2}\\.\\d{3}) +\\[(?<thread>[^ ]+)\\] +(?<severity>[^ ]+) +\\[\\]\\[(?<request_id>[^ ]*)\\]\\[\\] +(?<class>[^ :]*) +- +(?<log>.*)$', 'gm')
const str = `2021-03-09 05:31:41.396 [main] INFO [][][] o.s.c.b.c.PropertySourceBootstrapConfiguration - Located property source: [BootstrapPropertySource {name='bootstrapProperties-configmap.aa.default'}]`;
// 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