Regex: match not-words except token











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i am trying to match all not-words except ";;;" in a string, but i don't succeed. The not-words are unknown beforehand. Please see an example as follows:



Teststring: 
ab-cd ef;;;gh;ij;;;
Result:
abcdef;;;ghij;;;


Does anybody know a smart solution for that?



Thank you very much!










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  • 4




    "Not-words"? Could you clarify what a "not-word" is?
    – connectyourcharger
    Nov 22 at 13:06










  • By not-words i mean any non alphanumeric character. I want to replace all of those except ";;;"
    – user10690376
    Nov 22 at 13:19















up vote
-3
down vote

favorite












i am trying to match all not-words except ";;;" in a string, but i don't succeed. The not-words are unknown beforehand. Please see an example as follows:



Teststring: 
ab-cd ef;;;gh;ij;;;
Result:
abcdef;;;ghij;;;


Does anybody know a smart solution for that?



Thank you very much!










share|improve this question




















  • 4




    "Not-words"? Could you clarify what a "not-word" is?
    – connectyourcharger
    Nov 22 at 13:06










  • By not-words i mean any non alphanumeric character. I want to replace all of those except ";;;"
    – user10690376
    Nov 22 at 13:19













up vote
-3
down vote

favorite









up vote
-3
down vote

favorite











i am trying to match all not-words except ";;;" in a string, but i don't succeed. The not-words are unknown beforehand. Please see an example as follows:



Teststring: 
ab-cd ef;;;gh;ij;;;
Result:
abcdef;;;ghij;;;


Does anybody know a smart solution for that?



Thank you very much!










share|improve this question















i am trying to match all not-words except ";;;" in a string, but i don't succeed. The not-words are unknown beforehand. Please see an example as follows:



Teststring: 
ab-cd ef;;;gh;ij;;;
Result:
abcdef;;;ghij;;;


Does anybody know a smart solution for that?



Thank you very much!







regex regex-negation regex-lookarounds






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share|improve this question













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edited Nov 22 at 13:06









Poul Bak

5,42831132




5,42831132










asked Nov 22 at 13:03









user10690376

1




1








  • 4




    "Not-words"? Could you clarify what a "not-word" is?
    – connectyourcharger
    Nov 22 at 13:06










  • By not-words i mean any non alphanumeric character. I want to replace all of those except ";;;"
    – user10690376
    Nov 22 at 13:19














  • 4




    "Not-words"? Could you clarify what a "not-word" is?
    – connectyourcharger
    Nov 22 at 13:06










  • By not-words i mean any non alphanumeric character. I want to replace all of those except ";;;"
    – user10690376
    Nov 22 at 13:19








4




4




"Not-words"? Could you clarify what a "not-word" is?
– connectyourcharger
Nov 22 at 13:06




"Not-words"? Could you clarify what a "not-word" is?
– connectyourcharger
Nov 22 at 13:06












By not-words i mean any non alphanumeric character. I want to replace all of those except ";;;"
– user10690376
Nov 22 at 13:19




By not-words i mean any non alphanumeric character. I want to replace all of those except ";;;"
– user10690376
Nov 22 at 13:19












1 Answer
1






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oldest

votes

















up vote
0
down vote













You can use the following regex to get all the parts of the string, you want to keep:



/w+(?:;{3})?/g


It matches any number of Word chars, followed by a non capturing Group matching 3 semi colons. This is optional.



You can then create the result by joining all the matches to a string.






share|improve this answer





















  • Thank you. Can you think of a way to match all the W characters (except ;;;) in order to replace them?
    – user10690376
    Nov 22 at 14:21










  • Here you get 'what you want', not 'what you don't want', so Theres nothing that should be replaced.
    – Poul Bak
    Nov 22 at 14:29











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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes








up vote
0
down vote













You can use the following regex to get all the parts of the string, you want to keep:



/w+(?:;{3})?/g


It matches any number of Word chars, followed by a non capturing Group matching 3 semi colons. This is optional.



You can then create the result by joining all the matches to a string.






share|improve this answer





















  • Thank you. Can you think of a way to match all the W characters (except ;;;) in order to replace them?
    – user10690376
    Nov 22 at 14:21










  • Here you get 'what you want', not 'what you don't want', so Theres nothing that should be replaced.
    – Poul Bak
    Nov 22 at 14:29















up vote
0
down vote













You can use the following regex to get all the parts of the string, you want to keep:



/w+(?:;{3})?/g


It matches any number of Word chars, followed by a non capturing Group matching 3 semi colons. This is optional.



You can then create the result by joining all the matches to a string.






share|improve this answer





















  • Thank you. Can you think of a way to match all the W characters (except ;;;) in order to replace them?
    – user10690376
    Nov 22 at 14:21










  • Here you get 'what you want', not 'what you don't want', so Theres nothing that should be replaced.
    – Poul Bak
    Nov 22 at 14:29













up vote
0
down vote










up vote
0
down vote









You can use the following regex to get all the parts of the string, you want to keep:



/w+(?:;{3})?/g


It matches any number of Word chars, followed by a non capturing Group matching 3 semi colons. This is optional.



You can then create the result by joining all the matches to a string.






share|improve this answer












You can use the following regex to get all the parts of the string, you want to keep:



/w+(?:;{3})?/g


It matches any number of Word chars, followed by a non capturing Group matching 3 semi colons. This is optional.



You can then create the result by joining all the matches to a string.







share|improve this answer












share|improve this answer



share|improve this answer










answered Nov 22 at 13:25









Poul Bak

5,42831132




5,42831132












  • Thank you. Can you think of a way to match all the W characters (except ;;;) in order to replace them?
    – user10690376
    Nov 22 at 14:21










  • Here you get 'what you want', not 'what you don't want', so Theres nothing that should be replaced.
    – Poul Bak
    Nov 22 at 14:29


















  • Thank you. Can you think of a way to match all the W characters (except ;;;) in order to replace them?
    – user10690376
    Nov 22 at 14:21










  • Here you get 'what you want', not 'what you don't want', so Theres nothing that should be replaced.
    – Poul Bak
    Nov 22 at 14:29
















Thank you. Can you think of a way to match all the W characters (except ;;;) in order to replace them?
– user10690376
Nov 22 at 14:21




Thank you. Can you think of a way to match all the W characters (except ;;;) in order to replace them?
– user10690376
Nov 22 at 14:21












Here you get 'what you want', not 'what you don't want', so Theres nothing that should be replaced.
– Poul Bak
Nov 22 at 14:29




Here you get 'what you want', not 'what you don't want', so Theres nothing that should be replaced.
– Poul Bak
Nov 22 at 14:29


















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