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| | | Junior Member
 
Group: Forum Members
Last Login: 4/22/2011 10:39:32 PM
Posts: 11, Visits: 13 |
| how do i find a pattern in richtextbox??
the text is like :
hello i want to {help|meet|call} you {please|come|soon}.
i want to find all such strings which have curly braces and then replace the whole string with any word from within it, RANDOMLY.
so on the click of a button the above line might become :
hello i want to help you please.
OR
hello i want to call you soon.
i thought of using regex but iam completely blank on how to use it, also i didnt understand some tutorials on google.
this method works
[code]
Random r = new Random();
private void butRegex_Click(object sender, EventArgs e)
{
string stringWithTextIn = "hello i want to {help|meet|call} you.";
Regex regex = new Regex(@"({.*})");
string r = regex.Replace(stringWithTextIn, new MatchEvaluator(ReplaceMatch));
MessageBox.Show(r);
}
string ReplaceMatch(Match m)
{
string s = m.Value; // Get matched text only
s = s.Substring(1, s.Length - 2); // Remove '{' and '}'
string[] parts = s.Split('|'); // Break into words
return parts[r.Next(0,parts.Length)]; // return randow word
}[/code]
but it works only when there is one variation i.e for sentences like
hello i want to {help|meet|call} you.
any idea what is wrong??
working on a new one. |
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