const regex = /<(?<root>[A-Z_]+)(?: .*?>|>).*?<\/\k<root>>/gm;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('<(?<root>[A-Z_]+)(?: .*?>|>).*?<\\\/\\k<root>>', 'gm')
const str = `<?xml version="1.0" encoding="windows-1251" ?><ELEM_LIST><ELEM PLAYER_NAME="Плеер" STATUS="playing"><START_TIME>15:49:41</START_TIME><BLK_TYPE>М</BLK_TYPE><TYPE>М</TYPE><NAME>Heathens</NAME><ARTIST>Twenty One Pilots</ARTIST><AUTHOR></AUTHOR><ALBUM></ALBUM><DBID></DBID><FILE_NAME>H:\\Radio\\Music\\Twenty One Pilots - Heathens.mp3</FILE_NAME><DURATION>00:03:10</DURATION></ELEM><ELEM PLAYER_NAME="Плеер" STATUS="preloaded"><START_TIME></START_TIME><BLK_TYPE>М</BLK_TYPE><TYPE>Д</TYPE><NAME>ID #5</NAME><ARTIST>Jingle</ARTIST><AUTHOR></AUTHOR><ALBUM></ALBUM><DBID></DBID><FILE_NAME>H:\\Radio\\Jingle's\\ID #5.mp3</FILE_NAME><DURATION>00:00:01</DURATION></ELEM></ELEM_LIST>`;
// 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