hvextern

[Steve Litt]

Hi all,

I just found out today that Herbert Voss has recently (starting about a
year ago) created software, called hvextern, that takes a separate
source code file, and turns it into an image file for inclusion in your
document. Here's a quote from https://ctan.org/pkg/hvextern?lang=en :

"This package allows to write METAPOST, TEX, ConTEXt, LATEX, LuaTEX,
LuaLATEX, XETEX, XELATEX, Lua, Perl, or Python source code into an
external file, run that file via shell-escape to create PDF, PNG, or
text output, and include that output automatically into the main LATEX
document."

This means that as the source code changes, you just rerun hvextern and
recompile your LaTeX document. I see no reason why this can't be used
in LyX too. If you're a technical author like I am, this just might be
a pretty big deal.

If you want a several-page detailed description of hvexern and its use
and capabilities, you can see Herbert's article at
https://tug.org/TUGboat/tb43-3/tb135voss-extern.pdf . It was included in
in TUGboat volume 43, #3. 

Thanks,

SteveT

Steve Litt 
Autumn 2022 featured book: Thriving in Tough Times
http://www.troubleshooters.com/bookstore/thrive.htm
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Re: LyX 1.0

[Herbert Voss]

Am 05.06.23 um 22:49 schrieb Pavel Sanda:

On Mon, Jun 05, 2023 at 04:52:19PM +0200, Herbert Voss wrote:

there are some packages which read and write on PS level.

Are some of them important enought to put some note about them + -dNoSafer
parameter into our release notes?



no, not really ...

Herbert




This is the reason why I _always_ use both optional arguments. However, in
general -dALLOWPSTRANSPARENCY should be enough.

Ok, this is now committed and will be part of 2.4.

Thanks,
Pavel


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