CODEWITHSUNDEEP
regex
user14910152
user14910152

Reputation: 3

Regex for trailing slash and includes hompage "/"

I am using this Regex as a filter to capture all of my pages that have a trailing slash (as opposed to their identical non-trailing slash versions)

^(/[a-z0–9/_\-]*[/])$

I see that it filters exactly what I want except for the homepage which is "/" in google analytics. How can I include all of my pages /mypage/, /features/, /blog/this-is-my-blog-title in the report and exclude their alter egos of /mypage, /features, /blog/this-is-my-blog-title in the expression?

Upvotes: 0

Views: 1727

Answers (3)

Faheel
Faheel

Reputation: 2563

You can use this regular expression:

\/(?:[\w-]+\/)*

Check it out at regex101.com, which also includes an explanation of how the regex will perform the matching.

Upvotes: 1

Charlie Armstrong
Charlie Armstrong

Reputation: 2342

To get the same exact meaning as your current regex, but allow a single /, just add it in as an "or" option. The "or" character in regex is |. So something like this would work:

^(/[a-z0–9/_\-]*[/]|/)$

One minor improvement you can make is to take the third / out of the character class, since it is only one character. You might as well just match it literally. You also don't need to escape the -, since it is at the end of the character class:

^(/[a-z0–9/_-]*/|/)$

Now this still has the same exact meaning as your original regex, and it also captures a single /. There are a lot of other conditions in this regex, though. If you just want to check for any string ending in a /, you can shorten it way down to this:

^.*/$

This will match any string that ends in a /, including just a single /. It also happens to be much shorter and a little bit faster than your original regex. Here's a breakdown of this updated regex:

  • ^ This match has to start at the start of the string
  • .* Match 0 or more of any characters
  • / Match a literal /. This ensures that the string ends in a /.
  • $ This match has to end at the end of the string. This ensures that the / was actually at the end of the string, and not halfway through.

Upvotes: 1

alexis
alexis

Reputation: 50220

Your homepage path is one character long, so simply replacing * with + in your regex will exclude it:

^(/[a-z0–9/_\-]+[/])$

But to match paths ending in /, I’d write just

^.+/$

Upvotes: 0

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