Regex for specific strings/paths

Question

I need a regular expression to match many specific paths/strings but I can't figure it out.

E.g.

../foo/hoo/something.js -> Needs to match ../foo/hoo/

../foo/bar/somethingElse.js -> Needs to match ../foo/bar/

../foo/something-else.js -> Needs to match ../foo/

What I tried with no luck is the following regex:

/\..\/foo\/|bar\/|hoo\//g

What's the key? In first two you want to match both dirs, in the third one dir and filename... — pavel
– pavel, Commented Dec 12, 2017 at 8:56
Thanks for your comment I miss-typed my case. The case is as shown in updated answer. — korteee
– korteee, Commented Dec 12, 2017 at 8:58

lumio · Accepted Answer · 2017-12-12 09:03:09Z

1

This should work out for you:

/(\.\.\/foo\/(hoo\/|bar\/)?)/

https://regex101.com/r/1aTf7y/1

So you select ../foo/ at first and then have a group that can either contain hoo/ or bar/. And the question mark allows 0 or one instances.

If you want to be a little less specific, you could also do

/(\.\.\/[^\/]+\/(hoo\/|bar\/)?)/

The [^\/]+ allows all characters except for a slash

answered Dec 12, 2017 at 9:03

lumio

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marvel308 · Accepted Answer · 2017-12-12 09:02:52Z

1

You can use the regex

(\/[^\/\s]+)+(?=\/)

see the regex101 demo

function match(str){
  console.log(str.match(/(\/[^\/\s]+)+(?=\/)/)[0]);
}

match('./foo/hoo/something.js');
match('../foo/bar/somethingElse.js');
match('../foo/something-else.js');

answered Dec 12, 2017 at 9:02

marvel308

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1 Comment

korteee Over a year ago

This also matches strings which do not start from '../foo'

pavel · Accepted Answer · 2017-12-12 09:04:36Z

0

This should be the regex for matching all dirs without filename.

 /^(.*[/])[^/]+$/

answered Dec 12, 2017 at 9:04

pavel

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