Regex matching the end of a string with a word

Question

How do I match the end of a regular expression by a word? For example:

<h1><a href=...></a>CONTENT</h1>

Given that <h1> is the start tag, how do I return <a href=...></a>CONTENT?

The expression /< h1>(([<\/h1>\b])*/ does not seem to work

@Borealid: Without even clicking it, I knew which post that was :) — mpen
– mpen, Commented Feb 4, 2012 at 0:30
@Borealid: Give it a rest. There's no nested tags here, nor did the question ask for parsing. Also it's kind of rude to spam it onto every newbie question. meta.stackexchange.com/a/73168/148103 — mario
– mario, Commented Feb 4, 2012 at 0:33
@mario The two web sites mentioned in that response are actually useful, thanks! I'll use them instead. As for applicability: in my experience, one tag becomes two, and then someone puts in an HTML entity, and then you end up with a comment, and before you know it, you're parsing HTML. — Borealid
– Borealid, Commented Feb 4, 2012 at 0:40
@Borealid: Right, but that's true of everything. You start out with a simple for loop, and then requirements change, and new requirements are added, and before you know it you have a 2000-line function. Because everyone knows that you can never, ever change your design later. Refactoring is simply out of the question! Right? — ruakh
– ruakh, Commented Feb 4, 2012 at 3:37

FeRtoll · Accepted Answer · 2012-02-04 00:33:54Z

3

/<h1>([\s\S]*)<\/h1>/

I think this should help you out.

answered Feb 4, 2012 at 0:33

FeRtoll

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FeRtoll Over a year ago

Well then this should do it /<h1>([\x20-\x7E]*)<\/h1>/g

kba · Accepted Answer · 2012-02-04 01:02:32Z

0

What makes most regular expressions difficult, is the fact that they're greedy by default. By making them ungreedy using the U modifier, writing something like this becomes very trivial. The following should work.

/<h1>(.*)<\/h1>/U

answered Feb 4, 2012 at 1:02

kba

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kba Over a year ago

@M42 Yes it does, because I made it ungreedy. Please read my answer and the link about the U modifier. Or even better, test it yourself.

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