RegEx to get ALL Strings between two Strings

Question

I seem to have a love/hate relationship with RegEx in that I love how incredibly powerful it is, but at the same time, I don't quite understand all of the nuances of it yet.

I've got rather lengthy JSON feed that I need to parse and capture ALL of the matches between two specific strings. I've included a link to the regex101.com example with a few of the JSON results.

regex101.com Example

I'm trying to match every string between each /content/usergenerated and /jcr:content

...

I guess what I should really be trying to match is a string that starts with /content/webAppName/en/home and ends before /jcr:content

The path that I care about will always start with /content/webAppName/en/home

Your regex is working, you just need to extract the first match from it, as seen in the Match panel on the right. — Rory McCrossan
– Rory McCrossan, Commented Jan 28, 2015 at 16:41
"I seem to have a love/hate relationship with RegEx": don't worry, this is the only true love. — Casimir et Hippolyte
– Casimir et Hippolyte, Commented Jan 28, 2015 at 16:46
My biggest issue that was identified below was that I wasn't using the global modifier. I feel pretty stupid about that mistake. Doh! — Gdubz
– Gdubz, Commented Jan 28, 2015 at 18:16

score 1 · Accepted Answer · 2015-01-28 16:49:20Z

1

you have to use "positive look-ahead" that match a sequence of digits if they are followed by something https://regex101.com/r/fU1iD1/4

edited Jan 28, 2015 at 16:49

answered Jan 28, 2015 at 16:42

user1839730

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Gdubz Over a year ago

Your more compact version works perfectly, thank you!

chris · Accepted Answer · 2015-01-28 16:41:59Z

0

Just wrap the two things you're looking to remove in parenthesis, and then remove them from the output. So...

(\/content\/usergenerated)(.*)(\/jcr\:content)

replaced by

/2

Which is everything in the middle of those two.

edit: Sorry, didn't look at your example :) - there was a deleted answer that said to add the g modifier, which looks like it works.

answered Jan 28, 2015 at 16:41

chris

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1 Comment

Gdubz Over a year ago

This works as well, though it returns more than I really need. Mulder90's response is what I should have been doing from the start. Nevertheless, thank you!

Bharat · Accepted Answer · 2015-01-28 17:09:31Z

0

/content/usergenerated/content/webAppName/en/home([a-zA-Z/-]+)/jcr:content

This should work. It matches 3 out of 4 don't know why it doesn't match one of em. You could use exec() in a loop till it returns null and get hold of the object[1] which contains data for the first and only capture group.

all the best.

PS: I used gmi in options for the regex.

answered Jan 28, 2015 at 17:09

Bharat

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