const regex = new RegExp('^==\\h*Upgrade Notice\\h*==(?:(?:\\R(?!=\\h*\\d+\\.\\d+\\.\\d+\\h*=$).*)*\\R=\\h*(\\d+\\.\\d+\\.\\d+)\\h*=$\\s*){1}^((?:\\h*\\S.*(?:\\R\\h*\\S.*)*)+)', 'mg')
const str = `Some stuff before this notice like a changelog with versioning and explanation text.
== Upgrade Notice ==
= 1.3.0 =
When using Master Pro, 1.3.0 is the new minimal required version!
This is a test
= 1.1.0 =
When using Master Pro, 1.1.0 is the new minimal required version!
this is
a test
= 1.0.0 =
No upgrade - just install :)
another thest
[See changelog for all versions](https://plugins.svn.wordpress.org/master-pro/trunk/CHANGELOG.md).`;
// 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