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Groups > comp.lang.java.programmer > #39780

Re: Handle delimiter in read message

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On 5/23/2022 9:31 AM, e.d.pro...@gmail.com wrote:
>> I found out I can do:
>>
>> String endofMsg = sb.toString().substring(sb.toString().length() - 6);
>> return endofMsg.matches("\\r\\n##\\r\\n|.*\\n##\\n$");
>>
>> I had to use the last 6 characters since newline is different for each platform.
>>
>> //mike
> 
> I'm not clear what is the problem you're trying to solve, but System.getProperty("line.separator") is system dependent, so if you're running that on one system to get a value to use on a different system, your value will be wrong if the systems are different. *nix uses \n for linefeed, Windows uses \r\n , so you're checking for the presence of \n if you want to check for a linefeed.

     Also (if I recall correctly), various Internet RFC's require CR-LF
line terminators, regardless of the system sending the lines.  I don't
know whether mike's messages follow such a protocol, but many do.

     His best bet may be to recognize all of CR, LF, and CR-LF as line
terminators, and maybe even LF-CR as well.

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Thread

Handle delimiter in read message mike <mikaelpetterson@hotmail.com> - 2022-05-22 23:09 -0700
  Re: Handle delimiter in read message mike <mikaelpetterson@hotmail.com> - 2022-05-23 02:31 -0700
    Re: Handle delimiter in read message mike <mikaelpetterson@hotmail.com> - 2022-05-23 02:59 -0700
      Re: Handle delimiter in read message mike <mikaelpetterson@hotmail.com> - 2022-05-23 04:34 -0700
        Re: Handle delimiter in read message "e.d.pro...@gmail.com" <e.d.programmer@gmail.com> - 2022-05-23 06:31 -0700
          Re: Handle delimiter in read message Eric Sosman <esosman@comcast-dot-net.invalid> - 2022-05-23 10:33 -0400
        Re: Handle delimiter in read message Arne Vajhøj <arne@vajhoej.dk> - 2022-05-23 11:21 -0400
    Re: Handle delimiter in read message Stanimir Stamenkov <s7an10@netscape.net> - 2022-06-07 23:19 +0300

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