[NTG-context] texmfstart texexec --pdf --pages=1:2 => empty PDF

[Tobias Burnus]

Hello,

Tobias Burnus schrieb:
> I freshly switched to the ruby script and have now a problem:
>    texmfstart texexec --pdf --pages=1:2
> produces: No pages of output.
>    texmfstart texexec --pdf
> however, works: Output written on tmp_.pdf (3 pages, 103204 bytes)
>   
I do not know what that option does. It seems to do something, but not
the right thing.
Actually, looking at texexec.rb I get the impression that --pages= is
not supported. One finds there
-------------
# so far for compatibility
@@extrastringvars = [
    'pages', 'background', 'backspace', 'topspace', 'boxtype', 'tempdir',
-------------

Could the --pages option made to work in texexec.rb? In texexec.pl I
find the following. I probably should learn ruby [and python for that
matter] ...

Tobias
--------------------
    if ($Pages)  {
        if ( lc $Pages eq "odd" ) {
            print OPT "\\chardef\\whichpagetoshipout=1\n";
        } elsif ( lc $Pages eq "even" ) {
            print OPT "\\chardef\\whichpagetoshipout=2\n";
        } else {
            my @Pages = split( /\,/, $Pages );
            $Pages = '';
            foreach my $page (@Pages) {
                if ( $page =~ /\:/ ) {
                    my ( $from, $to ) = split( /\:/, $page );
                    foreach ( my $i = $from ; $i <= $to ; $i++ ) {
                        $Pages .= $i . ',';
                    }
                } else {
                    $Pages .= $page . ',';
                }
            }
            chop $Pages;
            print OPT "\\def\\pagestoshipout\{$Pages\}\n";
        }
    }