Re: [Maxima-discuss] Basic question on paths (for luatree.{mac, lisp, lua})

[Eduardo O. <edu...@gm...>]

Problem solved - with:
  luatreedir    : pathname_directory(load_pathname);
Sorry for the noise!
The program is here:
  http://angg.twu.net/eev-maxima.html#luatree
  https://github.com/edrx/luatree/#introduction
Cheers! =)
  Eduardo


On Thu, 4 Aug 2022 at 13:00, Eduardo Ochs <edu...@gm...> wrote:

> Hi all,
>
> I finally wrote a small program in Maxima that I think that is worth
> sharing - in the sense of it having a screenshot, a github page, and
> other such things. At this moment it is in these three files - the
> .htmls are more readable:
>
>   http://angg.twu.net/MAXIMA/luatree.mac.html
>   http://angg.twu.net/MAXIMA/luatree.lisp.html
>   http://angg.twu.net/MAXIMA/luatree.lua.html
>
>   http://angg.twu.net/MAXIMA/luatree.mac
>   http://angg.twu.net/MAXIMA/luatree.lisp
>   http://angg.twu.net/MAXIMA/luatree.lua
>
> Can I ask a basic question on style? Here it goes...
>
> Right now all paths are hardcoded. I run it from Maxima like this:
>
>   load("~/MAXIMA/luatree.mac");
>   MV2 : 'integrate(fp(g(x))*gp(x), x, a, b) = 'integrate(fp(u), u, g(a),
> g(b));
>   luatree(MV2);
>
> The .mac file loads a Lisp file by running this,
>
>   load("~/MAXIMA/luatree.lisp");
>
> and a function in the .lisp file runs this:
>
>   (uiop:run-program "~/MAXIMA/luatree.lua" :input s :output :lines)
>
> Can you recommend me good ways to de-hardcode these paths, and make
> everything work by requiring only that the three files be put in the
> same directory?
>
> Btw, the output of the "luatree(MV2);" above is this:
>
>   =___________________.
>   |                   |
>   integrate__.__.__.  integrate__.__.__.
>   |          |  |  |  |          |  |  |
>   *___.      x  a  b  fp         u  g  g
>   |   |               |             |  |
>   gp  fp              u             a  b
>   |   |
>   x   g
>       |
>       x
>
> Thanks in advance! =)
>   Eduardo Ochs
>   http://angg.twu.net/eev-maxima.html
>
>