diff options
| author | Casey West <casey@geeknest.com> | 2003-04-28 07:07:36 -0400 |
|---|---|---|
| committer | Rafael Garcia-Suarez <rgarciasuarez@gmail.com> | 2003-05-05 20:31:22 +0000 |
| commit | 6c3397db56d5151f21e501fb6fe11dd893f31ba7 (patch) | |
| tree | 20ea819bb8c1bf3bc69a9e30238b7c72049fad8d /pod | |
| parent | 4b3c1a47dc0fd4f1dba8913d1d8984fe79997756 (diff) | |
| download | perl-6c3397db56d5151f21e501fb6fe11dd893f31ba7.tar.gz | |
[perl #8063] perlfilter doesn't mention potential DATA clobber
Message-ID: <20030428150736.GD62281@geeknest.com>
p4raw-id: //depot/perl@19432
Diffstat (limited to 'pod')
| -rw-r--r-- | pod/perlfilter.pod | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/pod/perlfilter.pod b/pod/perlfilter.pod index 0103f8cfa3..51cd8ced75 100644 --- a/pod/perlfilter.pod +++ b/pod/perlfilter.pod @@ -551,6 +551,20 @@ useful features from the C preprocessor and any other macro processors you know. The tricky bit will be choosing how much knowledge of Perl's syntax you want your filter to have. +=head1 THINGS TO LOOK OUT FOR + +=over 5 + +=item Some Filters Clobber the C<DATA> Handle + +Some source filters use the C<DATA> handle to read the calling program. +When using these source filters you cannot rely on this handle, nor expect +any particular kind of behavior when operating on it. Filters based on +Filter::Util::Call (and therefore Filter::Simple) do not alter the C<DATA> +filehandle. + +=back + =head1 REQUIREMENTS The Source Filters distribution is available on CPAN, in |