const regex = /\b(\d+)(\s?)(f{1,2})(?:(\.)\B|\b(?!\.))/gm;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('\\b(\\d+)(\\s?)(f{1,2})(?:(\\.)\\B|\\b(?!\\.))', 'gm')
const str = `00f aaa +
00f. aaa +
00ff aaa +
00ff. aaa +
00 f aaa +
00 f. aaa +
00 ff aaa +
00 ff. aaa +
+ aaa 00f aaa +
+ aaa 00f. aaa +
+ aaa 00ff aaa +
+ aaa 00ff. aaa +
+ aaa 00 f aaa +
+ aaa 00 f. aaa +
+ aaa 00 ff aaa +
+ aaa 00 ff. aaa +
+ aaa 00f
+ aaa 00f.
+ aaa 00ff
+ aaa 00ff.
+ aaa 00 f
+ aaa 00 f.
+ aaa 00 ff
+ aaa 00 ff.
00 faaa -
00 f.aaa -
00 ffaaa -
00 ff.aaa -
00af aaa -
00af. aaa -
00aff aaa -
00aff. aaa -
- aaa 00 faaa -
- aaa 00 f.aaa -
- aaa 00 ffaaa -
- aaa 00 ff.aaa -
- aaa 00af aaa -
- aaa 00af. aaa -
- aaa 00aff aaa -
- aaa 00aff. aaa -
- aaa00f
- aaa00f.
- aaa00ff
- aaa00ff.
- aaa 00af
- aaa 00af.
- aaa 00aff
- aaa 00aff.
00faaa -
00f.aaa -
00ffaaa -
00ff.aaa -
00af aaa -
00af. aaa -
00aff aaa -
00aff. aaa -
- aaa00 faaa -
- aaa00 f.aaa -
- aaa00 ffaaa -
- aaa00 ff.aaa -
- aaa00af aaa -
- aaa00af. aaa -
- aaa00aff aaa -
- aaa00aff. aaa -
- aaa00af
- aaa00af.
- aaa00aff
- aaa00aff.`;
// 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