Re: Regexp Octal question

From:
 hiwa <HGA03630@nifty.ne.jp>
Newsgroups:
comp.lang.java.programmer
Date:
Mon, 25 Jun 2007 17:39:26 -0700
Message-ID:
<1182818366.981879.95210@j4g2000prf.googlegroups.com>
On Jun 26, 9:23 am, hiwa <HGA03...@nifty.ne.jp> wrote:

On Jun 26, 6:28 am, julien <richard.jul...@gmail.com> wrote:

Hi,

Strange question, if somebody have an answer, will be really helpfull.

I used a regexp (octal) : < \0 > to find < (char)0 > char in a
string.

1) If i get the regexp \0 from a text file, the regexp NOT match.
2) If i defines directly the regexp \0 in java code, the regexp MATCH.
3) If i get regexp \x00 (another way to match (char)0) from a file,
the regexp MATCH
4) If i defines directly the regexp \x00 in java code, the regexp
MATCH

So, to resume, i cant successfull get the regexp from a file.
Any idea ? This case is really strange for me.
Thanks in advance.


I don't understand your question.
Post a small demo code that is generally compilable, runnable and
could reproduce your problem. See:http://homepage1.nifty.com/algafield/sscce.html
andhttp://www.yoda.arachsys.com/java/newsgroups.html


And there should be no problem. Try this code:
/*** content of the regex.txt file *************************
\0103
************************************************************/
import java.io.*;

public class Julien{

  public static void main(String[] args) throws Exception{
    String regexFromFile;
    String regexFromCode = "\\0103";
    String text = "ABCDEF";

    BufferedReader br = new BufferedReader(new
FileReader("regex.txt"));

    regexFromFile = br.readLine();

    System.out.println(text.replaceAll(regexFromFile, "G"));
    System.out.println(text.replaceAll(regexFromCode, "G"));
  }
}

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