I want to strip off the 're:'
off subject lines in emails:
My string helper extension does the following:
return Regex.Replace(value, "([re:][re :])", "",RegexOptions.IgnoreCase);
However, it seems to match on "re:"
, but not "re:".
Is there any reason for this and how do I go about fixing it?
You probably mean something like:
Regex.Replace(value, "re:|re :", "", RegexOptions.IgnoreCase);
Which can also be written as:
Regex.Replace(value, "re ?:", "", RegexOptions.IgnoreCase);
And here is a possibly better expression:
Regex.Replace(value, "^\s*re\s*:\s*", "", RegexOptions.IgnoreCase);
Which only matches at the beginning of the string ( ^
) and also removes any following spaces ( \s*
).
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