const regex = /^\h*(<[^>]*>|\S+)\h+(.*?)\h+(<[^>]*>|\S+)\h*$/gm;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('^\\h*(<[^>]*>|\\S+)\\h+(.*?)\\h+(<[^>]*>|\\S+)\\h*$', 'gm')
const str = `ewd1 serpent 0 n ne o u w nw swamp
bats 0 n ne o u w nw swamp
undead 0 n ne o u w nw swamp
n river2 n ne o u
1002 e d
n <ewd8 ewd9 ewd2> se
n ewd9 s
n ewd2 sw
n rough w nw swamp
ewd2 serpent 0 w nw n swamp
bats 0 w nw n swamp
undead 0 w nw n swamp
n rough w nw n swamp
n <ewd1 ewd9 ewd10> ne o
n ewd9 e
n ewd10 se
n ewd4 s
n ewd3 sw`;
// 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