[l2h] dvips version detection + perl warning

[Ross Moore]

Hi Erling,

On Wed, 17 Dec 2003, Erling D. Andersen wrote:

> Hi,
>
> By the way I get dvips from the latest fptex for Windows.
>
> >Can you reply to this email, including the lines that  dvips
> >prints when it first starts up.
> >In a terminal, or DOS window, or whatever, please try:
> >  dvips --help    or  dvips -help   or  dvips -h
> >  dvips --version  or   dvips -version  or  dvips -v
> >or whatever else might reveal the startup message.
> >Try several, in case the responses are different.
>
> Here are
>
> C:\>dvis -v
> 'dvis' is not recognized as an internal or external command,
> operable program or batch file.

That's a mis-typing; result as expected.

>
> C:\>dvips -v
> This is dvips(k) 5.94a Copyright 2003 Radical Eye Software (www.radicaleye.com)

This is what we want to use, I'd expect.

>
> C:\>dvips --version
> dvips(k) 5.94a
> kpathsea version 3.5.2
> Copyright (C) 2003 Radical Eye Software.
> There is NO warranty.  You may redistribute this software
> under the terms of the GNU General Public License
> and the Dvips copyright.
> For more information about these matters, see the files
> named COPYING and dvips.h.
> Primary author of Dvips: T. Rokicki; -k maintainer: T. Kacvinsky/ S. Rahtz.

A much longer version; fine.


>
> C:\>
>

> >So to check what is happening, can you please add some print lines:
> >
> >>   foreach $veropt (@tryopts) {
> >>       my ($stat,$msg,$err) = &get_out_err("$dvips $veropt");
> >>
> >>       $msg .= $err || '';
> >
> >print "\nSTAT:$stat, MSG=$msg";
> >>
> >>       if(!$stat && $msg =~ /(?:^| )dvips(?:\(k\)|k|)\s*(\d+[.]?\d*[A-Z]?)/is) {
> >>         $version = $1;
> >print "; VERSION=$version\n";
> >>         last;
> >>       }
> >>     }
> >>
>
> Ross note that
>
> C:\Program Files\TeXLive\bin\win32\dvips.exe
>
> i.e. it contain a space in path. Can it cause problems. The output you ask for is below.
>
> Warning: Will not automatically install LaTeX2HTML style files.
> checking for dvips... C:\Program Files\TeXLive\bin\win32\dvips.exe
> checking dvips version...
> STAT:1, MSG=This is dvips(k) 5.94a Copyright 2003 Radical Eye Software (www.ra
> caleye.com)
> Missing DVI file argument (or -f).
> Try --help for more information.
> STAT:1, MSG='C:\Program' is not recognized as an internal or external command,
> operable program or batch file.
> STAT:1, MSG='C:\Program' is not recognized as an internal or external command,
> operable program or batch file.
> STAT:1, MSG='C:\Program' is not recognized as an internal or external command,
> operable program or batch file.

Note how all of these return a $stat of 1 .
So the reg-exp is never tested.

The first one succeeds, sort of.
If it had a $stat of 0 then it would be used to get the version.

To find out exactly what command is being tested,
put another `print'  statement:

> >>   foreach $veropt (@tryopts) {
   print "\nCMD: $dvips $veropt ";
> >>       my ($stat,$msg,$err) = &get_out_err("$dvips $veropt");


I suspect that it is *not*  dvips -v
so to fix the problem nicely, the commands to be tested
should include this as one option.
Preferably quite early in the list.


> C:\Program Files\TeXLive\bin\win32\dvips.exe
>
> i.e. it contain a space in path. Can it cause problems. The output you ask for is below.

Yes. This could be why the 2nd, 3rd and 4th tests fail.


Hope this helps,

	Ross


>
> Erling
>
>
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