CODEWITHSUNDEEP
c#regex
Atila Sos
Atila Sos

Reputation: 105

Regex \b with words starting with special characters

I'm having some difficulties with the regex boundary \b character. I need to search for an exact keyword inside some loaded text(either plain textual data or Xml). Because the need for exact matches I use the \bkeyword\b pattern but I get a different behaviour than what I expect when the keyword starts with a special character. For example the pattern \b€ 3,5\b doesn't match in I have € 3,5 to spend!. This is the case with any special characters.

I've search around but came up with no solution. Is there some mechanism that acts like a \b but for special characters ? Also note that i cannot alter the keyword. Any help would be appreciated.

Upvotes: 0

Views: 730

Answers (1)

Jerry
Jerry

Reputation: 71548

You can perhaps make use of a positive lookbehind:

(?<=^|\s)€ 3,5\b

The positive lookbehind will match either the beginning of the string or a \s, without including them in the match itself.

Upvotes: 1

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