I want to put inside parentheses the non-alphanumeric characters within a text.
For example:
"I would like to add * parentheses % around certain text within cells*."
I want to put inside parentheses via regex method the non-alphanumeric characters within above string.
Result:
"I would like to add (*) parentheses (%) around certain text within cells(*)."
string s = Regex.Replace(
@"I would like to add * parentheses % around certain text within cells*.",
@"([^.\d\w\s])", "($1)");
or to be more selective:
string s = Regex.Replace(
@"I would like to add * parentheses % around certain text within cells*.",
@"([*%])", "($1)");
In additio to Marc's "($1)"
answer, you can also use a MatchEvaluator:
Regex.Replace(test, "[^a-zA-z0-9 ]+", m => "(" + m.Value + ")");
Which would mainly be useful when you need to do more complicated manipulation of the found patterns.
replacng single chars and not the '.' :
Regex.Replace(test, @"[^a-zA-z0-9\. ]", m => "(" + m.Value + ")");
您可以使用string.replace或Regex.replace
string replace = Regex.Replace("a*", "([^a-zA-Z0-9])", "($1)");
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