posix - Regex for detecting a query string -


i'm trying use regex testing url.

  • accepted cases: 

    www.mystite.com/whatever/?bla=dfgsd&page=test  www.mystite.com/whatever/?bla=dfgsd&page=test& www.mystite.com/whatever/?bla=dfgsd&page=test&hello=bla  www.mystite.com/whatever/?page=test&hello=bla

  • rejected:

    www.mystite.com/whatever/?hello=bla&page=testfff  www.mystite.com/whatever/?page=testfff&hello=bla - not

because misses &page=test&, page=test& or &page=test

that's tried, , doesn't work:

([^&]+)([page=test])([^&]+)

you can ignore domain , sub folder, i'm trying check after question mark

after reading question 3rd time think asking for:

&?page=test($|&)

this matches occurences of "page=test" optional "&" @ start. @ end there needs either "&" (optionally followed other characters) or nothing (end of string).

does solve problem?


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