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Groups > comp.lang.java.programmer > #17157

Re: retriving escape unicode sequences from files ...

From "Arne Vajhøj" <arne.vajhøj@1:261/38.remove-5qr-this>
Subject Re: retriving escape unicode sequences from files ...
Message-ID <501D6353.56117.calajapr@time.synchro.net> (permalink)
Newsgroups comp.lang.java.programmer
References <501C1568.56042.calajapr@time.synchro.net>
Date 2012-08-04 18:41 +0000
Organization tds.net

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  To: qwertmonkey
From: Arne Vajhoj <arne@vajhoej.dk>

On 8/2/2012 11:52 PM, qwertmonkey@syberianoutpost.ru wrote:
>   Why is it that if you save a unicode sequence in a file, say "frantais"
> ~
> \u0066\u0072\u0061\u006e\u00e7\u0061\u0069\u0073
> ~
>   and then retrieve as a String you can't then convert it back to a UTF-8
String
> ~

Some code from my shelf:

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

public class Unescape {
     private static final Pattern p = Pattern.compile("\\\\u([0-9A-F]{4})");
     public static String U2U(String s) {
         String res = s;
         Matcher m = p.matcher(res);
         while(m.find()) {
             res = res.replaceAll("\\" + m.group(0),
Character.toString((char)Integer.parseInt(m.group(1), 16)));
         }
         return res;
     }
     public static void main(String[] args) {

System.out.println(U2U("\\u0041\\u0042\\u0043\\u000A\\u0031\\u0032\\u0033"));
     }
}

Arne

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Thread

retriving escape unicode sequences from files ... "qwertmonkey" <qwertmonkey@1:261/38.remove-yy0-this> - 2012-08-03 18:54 +0000
  Re: retriving escape unicode sequences from files ... "markspace" <markspace@1:261/38.remove-yy0-this> - 2012-08-03 18:54 +0000
  Re: retriving escape unicode sequences from files ... "Roedy Green" <roedy.green@1:261/38.remove-yy0-this> - 2012-08-03 18:54 +0000
  Re: retriving escape unicode sequences from files ... "glen herrmannsfeldt" <glen.herrmannsfeldt@1:261/38.remove-5qr-this> - 2012-08-04 18:41 +0000
  Re: retriving escape unicode sequences from files ... "Arne Vajhøj" <arne.vajhøj@1:261/38.remove-5qr-this> - 2012-08-04 18:41 +0000
    Re: retriving escape unicode sequences from files ... "Daniel Pitts" <daniel.pitts@1:261/38.remove-5qr-this> - 2012-08-04 18:41 +0000
      Re: retriving escape unicode sequences from files ... "markspace" <markspace@1:261/38.remove-5qr-this> - 2012-08-04 18:41 +0000
        Re: retriving escape unicode sequences from files ... "Lew" <lew@1:261/38.remove-5qr-this> - 2012-08-04 18:41 +0000
      Re: retriving escape unicode sequences from files ... "Arne Vajhøj" <arne.vajhøj@1:261/38.remove-p82-this> - 2012-08-08 06:20 +0000

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