const regex = new RegExp('\\b\\d+\\s+[A-Z]{3}\\s+[A-Z]', 'gm')
const str = ` 1 -1 2 SER HA H 4.477 0.003 1
2 -1 2 SER HB2 H 3.765 0.001 1
3 -1 2 SER HB3 H 3.765 0.001 1
4 -1 2 SER C C 173.726 0.2 1
5 -1 2 SER CA C 58.16 0.047 1
6 -1 2 SER CB C 64.056 0.046 1
7 0 3 HIS H H 8.357 0.004 1
8 0 3 HIS HA H 4.725 0.003 1
9 0 3 HIS HB2 H 3.203 0.003 2
.....
63 7 10 GLU HA H 4.328 0.004 1
64 7 10 GLU HB2 H 2.154 0.005 2
65 7 10 GLU HB3 H 2.156 0.004 2
66 7 10 GLU HG2 H 2.262 0.014 2
67 7 10 GLU HG3 H 2.464 0.001 2
68 7 10 GLU C C 177.242 0.2 1
69 7 10 GLU CA C 59.009 0.068 1`;
// 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