C# regex

Regex c#

using System.Text.RegularExpressions;

Regex.Replace("String containing pattern", "(con.*ern)+", match => match.Groups[0].Value.ToUpper())); 
// "String CONTAINING PATTERN"
Regex.Replace("helo world", "(h)(.*?)(l)", "H$2$3$3")
// "Hello world"
new Regex("pattern").Replace("pattern pattern pattern", "replaced", 1)) // first occurance
// "replaced pattern pattern"

Source: grepper.com

Regex c#

// Retirer les espaces au début et à la fin

using System.Text.RegularExpressions;

Regex regex = new Regex(@"(^\s+|\s+$)");
regex.Replace(str, "");

-1

Source: grepper.com

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