c# - How can I find the first regex that matches my input in a list of regexes? -

c# - How can I find the first regex that matches my input in a list of regexes? -

is there way write following?

string input; var match = regex.match(input, @"type1"); if (!match.success) { match = regex.match(input, @"type2"); } if (!match.success) { match = regex.match(input, @"type3"); }

basically, want run string thru gammut of expressions , see 1 sticks.

var patterns = new[] { "type1", "type2", "type3" }; match match; foreach (string pattern in patterns) { match = regex.match(input, pattern); if (match.success) break; }

or

var patterns = new[] { "type1", "type2", "type3" }; var match = patterns .select(p => regex.match(input, p)) .firstordefault(m => m.success); // in original example, match lastly match if // unsuccessful. expect accident, if want // behavior, can instead: var match = patterns .select(p => regex.match(input, p)) .firstordefault(m => m.success) ?? regex.match(input, patterns[patterns.length - 1]);

because linq objects uses deferred execution, regex.match called until match found, don't have worry approach beingness eager.

c# regex