troubleshooting Question

C# Regex

Avatar of Misha
MishaFlag for Russian Federation asked on
Regular ExpressionsC#
4 Comments1 Solution61 ViewsLast Modified:

I need find some substring in string. There are NOT letter symbols before and after this substring. Also there are begin and end of string near this substring.

For example, I need find "qwe" in  next cases:
1) " qwe "
2) "+qwe("
3) " qwe"
4) "qwe("
5) "qwe"

And NOT find "qwe" in case "qwer"
I try this regex:


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This regex can not find "qwe" in 3,4 and 5 case .
How add symbols begin and end of string in [ ???]
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