const regex = new RegExp('\\bp(ost|ostal)?(([ \\.]*(O|0|o)(ffice)?)|([ \\.]*box))([ \\.]*Box)?\\b', 'gi')
const str = `po box 1272
po box 29407
3001 p street suite a
po box 882
490 post st ste 700
530 post cpurt
530 post ct
postal box 1216
2 mile klondike highway po box 440
mile 1.5 klondike hwy po box 535
346 a tundra way po box 324
7307 s frontier drive/po box 877509
4540 edinburgh dr. po box 545, king salmon
650 oliver rd. po box 241702
#320 fortaleza street, po box 9024070,
10 el campo
`;
// 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