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From: Robert Klemme <shortcutter@googlemail.com>
Newsgroups: comp.lang.java.programmer
Subject: Re: Regex: Any character in character class
Date: Sat, 02 Feb 2013 00:08:28 +0100
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On 01.02.2013 21:14, Sebastian wrote:
> Am 31.01.2013 04:27, schrieb Arne Vajh=F8j:
>> On 1/30/2013 4:34 AM, Sebastian wrote:
>>> I want to match any sequence of characters, including line breaks, in=
 a
>>> suffix of a multi-line string.
>>>
>>> I do not want to use Pattern.DOTALL, because line breaks are not
>>> permissible everywhere. I cannot write [.]* because dot loses its
>>> special meaning inside a character class.
>>>
>>> I have come up with [\S\s]*
>>> as meaning any sequence of non-whitespace or whitespace (incl.
>>> line-breaks). Is there a better way?

Yes.

>> Do you always want to accept line breaks or not? If not then when?

> the string I want to match basicallyhas two parts (a "protocol" and a
> "selection expression"). I want to allow line breaks anywhere in the
> selection expression, but not in the protocol.

Of course you can use DOTALL - as an embedded flag:

package rx;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Dotty {

   private static final Pattern PAT =3D
     Pattern.compile("proto.*(?s:sel.*)");

   public static void main(String[] args) {
     test("protoPselS");
     test("protoPPselS\nS");
     test("protoP\nPselS\nS");
   }

   public static void test(final CharSequence cs) {
     System.out.println("cs=3D\"" + cs + "\"");
     final Matcher m =3D PAT.matcher(cs);

     if (m.matches()) {
       System.out.println("Match: \"" + m.group() + "\"");
     } else {
       System.out.println("Mismatch");
     }

     System.out.println();
   }

}

Kind regards

	robert


--=20
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/