Perl 5.6.1: Problem with CRLF/LF conversions

Sven Köhler skoehler@upb.de
Wed Nov 6 03:47:00 GMT 2002


warum verweißt du ihn auf perl5.8?
ist es nicht wünschenswert, daß perl dateien im text-mode öffnet?
bzw. sie nur genau dann als binär behandelt, wenn man binmode() aufruft?

Gerrit P. Haase wrote:

> Hallo Mikael,
>
> Am Dienstag, 5. November 2002 um 14:41 schriebst du:
>
>
>
> >I'm trying to port a framework of perl scripts to cygwin. I'm running
> >cygwin 1.3.14 on WinXP. The problem is that perl seems to assume binmode
> >whenever I read a file, but text mode when I write to one.
>
>
> >The sample code below shows the problem.
> >If I write a line to a file with a LF-only ending, perl (or cygwin) 
> adds a
> >CR. When I later read the same line from the file the CR isn't removed.
>
>
> >Is there some special option I need to set to make perl always assume 
> text
> >mode unless I explicitly use the binmode command?
>
>
>
> >#!/usr/bin/perl -w
>
>
> >open(F, "> foobar.txt") || die "Cannot create foobar.txt";
> >print F "Line1\n";
> >print F "Line2\n";
> >close F;
>
>
> >open(F, "< foobar.txt") || die "Cannot open foobar.txt";
> >while () {
> >    s/(.)/sprintf("%02x ", ord($1))/ges;
> >    print "$_\n";
> >}
> >close F;
>
>
> >exit 0;
>
>
>
> Please consider to upgrade Perl to version 5.8,
> click the 'Exp' radiobutton in setup.exe to load
> down and install perl-5.8.0
>
> Then you may play with the new PERLIO features,
> please see: perldoc perlio for details.
>
>
> Gerrit




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