Regex to Match Number of Subdirectories in a URL












0















I found an article that almost covered my exact need. However, it needs to be adjusted a bit and I can't quite figure it out.



VARIATION 1: EXACTLY X NUMBERS OF SUB-DIRECTORIES, WITH TRAILING SLASH
This variation assumes each subdirectory ends in a trailing slash.



Regex for exactly one sub-directory
^/[^/]+/$



example matching URL path: /retail/



Regex for exactly two sub-directories
^/[^/]+/[^/]+/$



example matching URL path: /retail/clothing/



I would like to adjust these two rules to match a specific directory.



In my case, I have a site that has multiple top-level directories (products and stores, each with 2 additionally subdirectories).



I would like to create a regex rule to only target /products/ plus the following 3 subdirectories.










share|improve this question


















  • 1





    What regex engine are you using? Are you using a specific language?

    – Conner
    Nov 21 '18 at 4:51











  • I'm trying to get this to work in Google Analytics.

    – Leigh
    Nov 21 '18 at 6:02











  • support.google.com/analytics/answer/1034324?hl=en It appears Google Analytics doesn't support {3}. You could submit a feature request.

    – Conner
    Nov 21 '18 at 6:05


















0















I found an article that almost covered my exact need. However, it needs to be adjusted a bit and I can't quite figure it out.



VARIATION 1: EXACTLY X NUMBERS OF SUB-DIRECTORIES, WITH TRAILING SLASH
This variation assumes each subdirectory ends in a trailing slash.



Regex for exactly one sub-directory
^/[^/]+/$



example matching URL path: /retail/



Regex for exactly two sub-directories
^/[^/]+/[^/]+/$



example matching URL path: /retail/clothing/



I would like to adjust these two rules to match a specific directory.



In my case, I have a site that has multiple top-level directories (products and stores, each with 2 additionally subdirectories).



I would like to create a regex rule to only target /products/ plus the following 3 subdirectories.










share|improve this question


















  • 1





    What regex engine are you using? Are you using a specific language?

    – Conner
    Nov 21 '18 at 4:51











  • I'm trying to get this to work in Google Analytics.

    – Leigh
    Nov 21 '18 at 6:02











  • support.google.com/analytics/answer/1034324?hl=en It appears Google Analytics doesn't support {3}. You could submit a feature request.

    – Conner
    Nov 21 '18 at 6:05
















0












0








0








I found an article that almost covered my exact need. However, it needs to be adjusted a bit and I can't quite figure it out.



VARIATION 1: EXACTLY X NUMBERS OF SUB-DIRECTORIES, WITH TRAILING SLASH
This variation assumes each subdirectory ends in a trailing slash.



Regex for exactly one sub-directory
^/[^/]+/$



example matching URL path: /retail/



Regex for exactly two sub-directories
^/[^/]+/[^/]+/$



example matching URL path: /retail/clothing/



I would like to adjust these two rules to match a specific directory.



In my case, I have a site that has multiple top-level directories (products and stores, each with 2 additionally subdirectories).



I would like to create a regex rule to only target /products/ plus the following 3 subdirectories.










share|improve this question














I found an article that almost covered my exact need. However, it needs to be adjusted a bit and I can't quite figure it out.



VARIATION 1: EXACTLY X NUMBERS OF SUB-DIRECTORIES, WITH TRAILING SLASH
This variation assumes each subdirectory ends in a trailing slash.



Regex for exactly one sub-directory
^/[^/]+/$



example matching URL path: /retail/



Regex for exactly two sub-directories
^/[^/]+/[^/]+/$



example matching URL path: /retail/clothing/



I would like to adjust these two rules to match a specific directory.



In my case, I have a site that has multiple top-level directories (products and stores, each with 2 additionally subdirectories).



I would like to create a regex rule to only target /products/ plus the following 3 subdirectories.







regex






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Nov 21 '18 at 4:40









LeighLeigh

31




31








  • 1





    What regex engine are you using? Are you using a specific language?

    – Conner
    Nov 21 '18 at 4:51











  • I'm trying to get this to work in Google Analytics.

    – Leigh
    Nov 21 '18 at 6:02











  • support.google.com/analytics/answer/1034324?hl=en It appears Google Analytics doesn't support {3}. You could submit a feature request.

    – Conner
    Nov 21 '18 at 6:05
















  • 1





    What regex engine are you using? Are you using a specific language?

    – Conner
    Nov 21 '18 at 4:51











  • I'm trying to get this to work in Google Analytics.

    – Leigh
    Nov 21 '18 at 6:02











  • support.google.com/analytics/answer/1034324?hl=en It appears Google Analytics doesn't support {3}. You could submit a feature request.

    – Conner
    Nov 21 '18 at 6:05










1




1





What regex engine are you using? Are you using a specific language?

– Conner
Nov 21 '18 at 4:51





What regex engine are you using? Are you using a specific language?

– Conner
Nov 21 '18 at 4:51













I'm trying to get this to work in Google Analytics.

– Leigh
Nov 21 '18 at 6:02





I'm trying to get this to work in Google Analytics.

– Leigh
Nov 21 '18 at 6:02













support.google.com/analytics/answer/1034324?hl=en It appears Google Analytics doesn't support {3}. You could submit a feature request.

– Conner
Nov 21 '18 at 6:05







support.google.com/analytics/answer/1034324?hl=en It appears Google Analytics doesn't support {3}. You could submit a feature request.

– Conner
Nov 21 '18 at 6:05














1 Answer
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oldest

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I don’t have a system to test this, but I think you can use the ‘?’ and parens to add the variable sub-dirs on your base match for “/products/“.



The base regex would be “^/products/$”.
Then to match 0 or 1 subdirectories, you could add “([^/]+/)?”
Add three of these and I think you have the regex to match your base plus 0 to 3 subdirectories. I think that is what you were asking for.



^/products/([^/]+/)?([^/]+/)?([^/]+/)?$


The equivalent RE worked in Emacs for these test lines:



/products/
/products/a/
/products/a/b/
/products/a/b/c/


And did not match this:



/products/a/b/c/d/


If you always wanted the 3 subdirectories, drop the ‘?’s to make the extras required.



^/products/[^/]+/[^/]+/[^/]+/$


Hope this helps!






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    I don’t have a system to test this, but I think you can use the ‘?’ and parens to add the variable sub-dirs on your base match for “/products/“.



    The base regex would be “^/products/$”.
    Then to match 0 or 1 subdirectories, you could add “([^/]+/)?”
    Add three of these and I think you have the regex to match your base plus 0 to 3 subdirectories. I think that is what you were asking for.



    ^/products/([^/]+/)?([^/]+/)?([^/]+/)?$


    The equivalent RE worked in Emacs for these test lines:



    /products/
    /products/a/
    /products/a/b/
    /products/a/b/c/


    And did not match this:



    /products/a/b/c/d/


    If you always wanted the 3 subdirectories, drop the ‘?’s to make the extras required.



    ^/products/[^/]+/[^/]+/[^/]+/$


    Hope this helps!






    share|improve this answer




























      1














      I don’t have a system to test this, but I think you can use the ‘?’ and parens to add the variable sub-dirs on your base match for “/products/“.



      The base regex would be “^/products/$”.
      Then to match 0 or 1 subdirectories, you could add “([^/]+/)?”
      Add three of these and I think you have the regex to match your base plus 0 to 3 subdirectories. I think that is what you were asking for.



      ^/products/([^/]+/)?([^/]+/)?([^/]+/)?$


      The equivalent RE worked in Emacs for these test lines:



      /products/
      /products/a/
      /products/a/b/
      /products/a/b/c/


      And did not match this:



      /products/a/b/c/d/


      If you always wanted the 3 subdirectories, drop the ‘?’s to make the extras required.



      ^/products/[^/]+/[^/]+/[^/]+/$


      Hope this helps!






      share|improve this answer


























        1












        1








        1







        I don’t have a system to test this, but I think you can use the ‘?’ and parens to add the variable sub-dirs on your base match for “/products/“.



        The base regex would be “^/products/$”.
        Then to match 0 or 1 subdirectories, you could add “([^/]+/)?”
        Add three of these and I think you have the regex to match your base plus 0 to 3 subdirectories. I think that is what you were asking for.



        ^/products/([^/]+/)?([^/]+/)?([^/]+/)?$


        The equivalent RE worked in Emacs for these test lines:



        /products/
        /products/a/
        /products/a/b/
        /products/a/b/c/


        And did not match this:



        /products/a/b/c/d/


        If you always wanted the 3 subdirectories, drop the ‘?’s to make the extras required.



        ^/products/[^/]+/[^/]+/[^/]+/$


        Hope this helps!






        share|improve this answer













        I don’t have a system to test this, but I think you can use the ‘?’ and parens to add the variable sub-dirs on your base match for “/products/“.



        The base regex would be “^/products/$”.
        Then to match 0 or 1 subdirectories, you could add “([^/]+/)?”
        Add three of these and I think you have the regex to match your base plus 0 to 3 subdirectories. I think that is what you were asking for.



        ^/products/([^/]+/)?([^/]+/)?([^/]+/)?$


        The equivalent RE worked in Emacs for these test lines:



        /products/
        /products/a/
        /products/a/b/
        /products/a/b/c/


        And did not match this:



        /products/a/b/c/d/


        If you always wanted the 3 subdirectories, drop the ‘?’s to make the extras required.



        ^/products/[^/]+/[^/]+/[^/]+/$


        Hope this helps!







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Nov 21 '18 at 8:00









        Bill StaffordBill Stafford

        263




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