正则表达式中的任何字符（包括换行符）模式是什么？

Question

Does regex have a pattern that match any characters including new line in regex? The dot pattern match any characters but isn't including new line, (currently, I'm using [^~] because the ~ character is rarely use).

Edit: I'm using regex with C# language.

Answer 1

Using #C , you can use the RegexOptions.Singleline compiler flag.

Use single-line mode, where ( . ) matches every character (instead of every character except \\n )

And instead of the RegexOptions.Singleline compiler flag, you can get the same effect by placing an inline modifier at the very beginning of your regular expression.

Regex.Match(input, @"(?s)foo.*bar");

Answer 2

In perl : Use s modifier.

Treat string as single line. That is, change "." to match any character whatsoever, even a newline, which normally it would not match.

http://perldoc.perl.org/perlre.html

Example:

#!/usr/bin/env perl

$_ = "Word1Word2Word3Word4\nEuropeWorld";

if ( m/Word4.Europe/s ) {
    print "yes\n";
    }

Answer 3

I am not familiar with C#, but I am sure regex works the identically everywhere.