I need to create two regex
One, for catching these type of strings:
- /xyz-courses/test/test
- /abc-courses/test-abc/test-xyz
- /abc-courses/test-abc/test-xyz?itsok=yes
But I don't want to match these strings where fixed word is prepended with -courses:
- /fixed-courses/test/test
- /fixed-courses/test-abc/test-xyz
- /fixed-courses/test-abc/test-xyz?itsok=yes
I have created the following REGEX, which is working perfectly fine, but not sure about case how to exclude the prepended word fixed
/([^/] )-courses/([^/] )/([^/] )$
Second, I need to create REGEX to negate all regex created in previous step. I tried:
[^/([^/] )-courses/([^/] )/([^/] )]$
But this is showing invalid on all REGEX checkers.
CodePudding user response：
You may use this regex to disallow fixed- before courses:
^/((?!fixed-)[^/-] )-courses/([^/] )/([^/] )$
(?!fixed-) is a negative lookahead that will fail the match if fixed- appears right after / and before courses/.
For second part use this to negate first regex:
^/(?!((?!fixed-)[^/-] )-courses/([^/] )/([^/] )$).