Well, I found how to get the output from the filter.
Consider the code:
#! /usr/bin/env perl
use PDL;
use PDL::NiceSlice;
use Filter::sh 'tee rem1.pl';
my $x=sequence(1);
my $V=$x/$x((-1)); #my $w=$A/$x((-1));
The line
use Filter::sh 'tee rem1.pl';
sends a copy of the last lines of the preprocessed source to the file
rem1.pl. After feeding the code above to perl, the contents of rem1.pl
are
my $x=sequence(1);
my $V=$x/$x((-1));
#my $w=$A/$x->slice([-1,0,0]);
This shows that the NiceSlice filter is applied to the $x in the
comment and not to the $x in the executable line. This happens even if
I use $y instead of $x in the comment.
Regards,
Luis
On Fri, Nov 04, 2022 at 11:46:05PM +0300, Yury Pakhomov wrote:
> Hi Ed,
>
> I use last version of PDL 2.081. This problem also affected preview 2.080
> version.
>
> Other machine has Fedora Core 36 with perl 5.34 and PDL 2.076
>
> Best regards,
>
> Yury
>
> 04.11.2022 18:49, Ed. пишет:
> >
> > Hi Yury,
> >
> > I had a look and I don’t think Slackware packages PDL. Can you tell us
> > what version of PDL you have installed, on the two machines where you’ve
> > tried your script?
> >
> > Best regards,
> >
> > Ed
> >
> > *From: *Yury Pakhomov <mailto:pakho...@inasan.ru>
> > *Sent: *03 November 2022 13:14
> > *To: *perldl <mailto:pdl-general@lists.sourceforge.net>
> > *Subject: *[Pdl-general] PDL::NiceSlice and Perl 5.36
> >
> > Hello All!
> >
> > After update my system (Slackware 15) some PDL programs crashed.
> > For example, below is simple part of my code.
> >
> > code.pl
> > ________________________________
> > #! /usr/bin/perl -w
> > #use v5.36;
> > use PDL;
> > use PDL::NiceSlice;
> >
> > my $c=299792;
> >
> > my $x=5000+sequence(100);
> >
> > # Average step in lam
> > my $dx=($x((-1))-$x((0)))/(nelem($x)-1);
> >
> > # Minimal step in V scale
> > my $dV=$c*$dx/$x((-1));
> >
> > # Create uniform V scale (km/s)
> > my $n=int(log($x((-1))/$x((0)))/log(1+$dV/$c))+2;
> > my $v=sequence($n)*$dV;
> > _________________________________
> >
> > # perl -c code.pl
> > syntax error at bad2.pl line 14, near "$x("
> > bad2.pl had compilation errors.
> >
> > If I change line 14 to "my $dV=$c*$dx/$x->at(-1)->sclr;" then works fine.
> > Also the original code in other computer (perl 5.34) works fine too.
> > Moreover, if delete last three lines in code.pl, then it works!
> > Where source of these errors?
> >
> >
> >
> >
> > _______________________________________________
> > pdl-general mailing list
> > pdl-general@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/pdl-general
> >
> _______________________________________________
> pdl-general mailing list
> pdl-general@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/pdl-general
--
o
W. Luis Mochán, | tel:(52)(777)329-1734 /<(*)
Instituto de Ciencias Físicas, UNAM | fax:(52)(777)317-5388 `>/ /\
Av. Universidad s/n CP 62210 | (*)/\/ \
Cuernavaca, Morelos, México | moc...@fis.unam.mx /\_/\__/
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