Regex to match exact path with two /

Question

I am trying to match below path with a regex.

# test-site could be anything like "shoe-site", "best-clock", etc.
/content/test-site

The current regex rule (\/content\/{1}\S+) would have been adequate.

The problem is it is matching the entire path such as /content/test-site/en_US/abc.html.

I need it to match only /content/test-site.

Example of path to be matched:

https://localhost:4502/content/test-site/en_US/book/city/sample-rooms/airport-inn/propertyCode.00000.html

Regex I've tried by far;

(\/content\/[a-z-]+)\/[a-z]{2}_[A-Z]{2}\/book(ing-path)?\/(sample-|sample-details)(.*).[0-9]{5}.*

/content/test-site is optional- it might not present sometimes in url.

What am I doing wrong and how can I fix it?

If "test-site" always consists of two words (alphanumeric or underscore) separated by `-`, you may use `\/content\/\w+-\w+`. See it here: https://regex101.com/r/vjx05U/1. If it can be anything except `/`, then you may use `\/content\/[^/]+`. Please note that `{1}` is redundant. — 41686d6564 stands w. Palestine, Sep 05 '19 at 23:50
Mach for character repetition. See here https://stackoverflow.com/questions/1023902/it-is-possible-to-match-a-character-repetition-with-regex-how — MayDisplay, Sep 05 '19 at 23:55
soo... are you matching against a full URL, or just the path? Because your "path to be matched" example is a full URL... — CrayonViolent, Sep 06 '19 at 00:51
@CrayonViolent just the path - not full url. some times it would have /content/test-site, some times not. /en_US/... etc. — Sri, Sep 06 '19 at 00:58

ManUtopiK · Answer 1 · 2019-09-06T00:04:26.757

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Regex to match any character expect /:

content\/[^\/]+

This is character classes. A character class beginning with caret will match anything not in the class. More about this.

So, with javascript:

const url = '/content/test-site/en_US/abc.html';

const path = url.match(/content\/[^\/]+/)

console.log(path[0])

edited Sep 06 '19 at 00:04

answered Sep 05 '19 at 23:53

ManUtopiK

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score 1 · Answer 2 · answered Sep 05 '19 at 23:57

1

Here is another approach:

(?:\/[a-zA-Z0-9-]+){2}

Regex Demo

Explanation:

(?:                 # Non-capturing group
\/[a-zA-Z0-9-]+     # Match starting with / and followed with characters/digits/-
)                   # Close grouping
{2}                 # Match two times, i.e. only match with two /

answered Sep 05 '19 at 23:57

vs97

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Why did you assume that "content" isn't a constant? – 41686d6564 stands w. Palestine Sep 06 '19 at 00:01
@AhmedAbdelhameed in the question it doesn't mention anywhere that content is a constant. What if it is not? We don't know, I'm leaving this for OP to decide. My answer is just one of possible approaches. – vs97 Sep 06 '19 at 00:02
The OP used it as a constant (i.e., in his/her pattern). I wouldn't _assume_ otherwise, but maybe that's just me :) – 41686d6564 stands w. Palestine Sep 06 '19 at 00:05
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@AhmedAbdelhameed I see your point, I don't think my answer does any harm though, if OP confirms that it is a constant I will delete answer, no problem. – vs97 Sep 06 '19 at 00:06
@AhmedAbdelhameed thanks for the response. can you tell me ?: why this is needed ? thanks. – Sri Sep 06 '19 at 00:17
@Sri this is a non-capturing group, see here https://stackoverflow.com/questions/3512471/what-is-a-non-capturing-group-in-regular-expressions – vs97 Sep 06 '19 at 00:19
/content/test-site is optional , in above regex it is saying +, I am not sure if I could do a whole group zero or one time. – Sri Sep 06 '19 at 00:28

score 1 · Answer 3 · answered Sep 06 '19 at 01:46

1

You can use negated character class

^(?:[^\/]*\/){2}[^\/]*

const path = '/content/test-site/en_US/abc.html';

const desired = path.match(/^(?:[^\/]*\/){2}[^\/]*/)

console.log(desired[0])

answered Sep 06 '19 at 01:46

Code Maniac

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Regex to match exact path with two /

3 Answers3