mplib & undefined commands

mplib & undefined commands

[Mojca Miklavec]

Hello Hans,

I have modified the gnuplot module a bit, and stumbled upon:

1.) the need for
     \ifx\savebuffer\undefined \else \savebuffer[...]\fi
which has been expected

2.) undefined command
     \forceMPTEXcheck{put_text}
I have now used a wrapper to skip that line in LuaTeX (btw: what's the
suggested \if clause or \beginNOLUATEX to check for luatex/mkiv?) Does
it make sense to define \let\forceMPTEXcheck\empty in mkiv perhaps?

3.) undefined command \obeyMPlines. I actually forgot why I needed it,
but according to the comment:
    \obeyMPlines % <- no longer a problem
    \def\obeyedline{}% <- thanks to this
I simply commented out the first line and hoped for no problems in mkii

4.) It seems to work without problems now, except for one tiny detail
that I get in the final PDF.
    [do we need TeXtexts in MkIV]

What is that supposed to mean?


I need to admit that I have the following piece of code in the module
(in case that matters). Maybe I'm the only one who uses it, so if you
have any idea how to modify the macros to make
\sometxt[gp][iwona,14pt]{text} work in mkiv, I will happily drop the
old code/replace it for mkiv.

Thanks a lot,
    Mojca

The relevant code from the module:

%D Aditya, thanks a lot for requesting it!
%D Hans, thanks a lot for implementing this!
\definetextext[gp]{\strut}
%D TODO (feature request):
%D \starttyping
%D    \sometxt[gp][ss,20pt]{abc}
%D \stoptyping
%D should become equivalent to
%D \starttyping
%D    \sometxt{\switchtobodyfont[ss,20pt]\strut abc}
%D \stoptyping

%D The following patch has been written by Aditya and seems to work OK,
%D however it would be more clean to have this functionality in the core.
%D Redefining low-level macros might be a bit dangerous, esp. since
%D they tend to change over time.
%D
%D TODO: remind Hans to implement it in core ;)
%D       and remove this patch from the module

\long\def\redofiltersometxt[#1]%
{\doifnextcharelse[{\reredofiltersometxt[#1]}{\redodofiltersometxt[#1]}}

\long\def\redodofiltersometxt[#1]#2%
  {\increment\txtcounter
   \TeXtext[#1]\txtcounter{#2}%
   \filtersometxt}

\long\def\reredofiltersometxt[#1][#2]#3%
  {\increment\txtcounter
   \TeXtext[#1]\txtcounter{\switchtobodyfont[#2]\strut#3}%
   \filtersometxt}
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Re: mplib & undefined commands

[Hans Hagen]

Hi Mojca

> I have modified the gnuplot module a bit, and stumbled upon:
> 
> 1.) the need for
>      \ifx\savebuffer\undefined \else \savebuffer[...]\fi
> which has been expected
> 
> 2.) undefined command
>      \forceMPTEXcheck{put_text}

ok, i will add a fake

> I have now used a wrapper to skip that line in LuaTeX (btw: what's the
> suggested \if clause or \beginNOLUATEX to check for luatex/mkiv?) Does
> it make sense to define \let\forceMPTEXcheck\empty in mkiv perhaps?

best make a

yourmodule.tex
yourmodule.mkii
yourmodule.mkiv

and in the tex file adds:

\loadmarkfile{yourmodule}


> 3.) undefined command \obeyMPlines. I actually forgot why I needed it,
> but according to the comment:
>     \obeyMPlines % <- no longer a problem
>     \def\obeyedline{}% <- thanks to this
> I simply commented out the first line and hoped for no problems in mkii

ok, another fake

> 4.) It seems to work without problems now, except for one tiny detail
> that I get in the final PDF.
>     [do we need TeXtexts in MkIV]
> 
> What is that supposed to mean?

well, that everything now can be 'textext'

> I need to admit that I have the following piece of code in the module
> (in case that matters). Maybe I'm the only one who uses it, so if you
> have any idea how to modify the macros to make
> \sometxt[gp][iwona,14pt]{text} work in mkiv, I will happily drop the
> old code/replace it for mkiv.

hm, so \sometxt is not working? i thought that i tested it (maybe not 
... too much to test)

> \long\def\redofiltersometxt[#1]%
> {\doifnextcharelse[{\reredofiltersometxt[#1]}{\redodofiltersometxt[#1]}}
> 
> \long\def\redodofiltersometxt[#1]#2%
>   {\increment\txtcounter
>    \TeXtext[#1]\txtcounter{#2}%
>    \filtersometxt}
> 
> \long\def\reredofiltersometxt[#1][#2]#3%
>   {\increment\txtcounter
>    \TeXtext[#1]\txtcounter{\switchtobodyfont[#2]\strut#3}%
>    \filtersometxt}

i think that we have it in the core


anyhow, just collects what does not work

(btw, i fixed something in textext ... i used to work only for code 
passed as mpgraphic, but now it works also with libraries and so)


-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
      tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
-----------------------------------------------------------------
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maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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___________________________________________________________________________________

Re: mplib & undefined commands

[Mojca Miklavec]

Hi,

On Sat, Apr 12, 2008 at 9:38 AM, Hans Hagen wrote:
>
>  > 2.) undefined command
>  >      \forceMPTEXcheck{put_text}
>
>  ok, i will add a fake

Thanks.

>
>  > I have now used a wrapper to skip that line in LuaTeX (btw: what's the
>  > suggested \if clause or \beginNOLUATEX to check for luatex/mkiv?) Does
>  > it make sense to define \let\forceMPTEXcheck\empty in mkiv perhaps?
>
>  best make a
>
>  yourmodule.tex
>  yourmodule.mkii
>  yourmodule.mkiv
>
>  and in the tex file adds:
>
>  \loadmarkfile{yourmodule}

OK, once I rewrite some more code than a few lines, I will split it
(but now there are really only minor, one-line patches).

>  > 3.) undefined command \obeyMPlines. I actually forgot why I needed it,
>  > but according to the comment:
>  >     \obeyMPlines % <- no longer a problem
>  >     \def\obeyedline{}% <- thanks to this
>  > I simply commented out the first line and hoped for no problems in mkii
>
>  ok, another fake

Thanks. Still - I don't know if it's still needed at all and what
exactly it was used for (maybe metapost has complained about too long
lines long time ago).

>  > 4.) It seems to work without problems now, except for one tiny detail
>  > that I get in the final PDF.
>  >     [do we need TeXtexts in MkIV]
>  >
>  > What is that supposed to mean?
>
>  well, that everything now can be 'textext'
>
>
>  > I need to admit that I have the following piece of code in the module
>  > (in case that matters). Maybe I'm the only one who uses it, so if you
>  > have any idea how to modify the macros to make
>  > \sometxt[gp][iwona,14pt]{text} work in mkiv, I will happily drop the
>  > old code/replace it for mkiv.
>
>  hm, so \sometxt is not working? i thought that i tested it (maybe not
>  ... too much to test)

\sometxt is working, only some Aditya's extensions complain. I will
test a bit, try to rewrite some bits and pieces, collect the missing
parts and report back.

>
>  > \long\def\redofiltersometxt[#1]%
>  > {\doifnextcharelse[{\reredofiltersometxt[#1]}{\redodofiltersometxt[#1]}}
>  >
>  > \long\def\redodofiltersometxt[#1]#2%
>  >   {\increment\txtcounter
>  >    \TeXtext[#1]\txtcounter{#2}%
>  >    \filtersometxt}
>  >
>  > \long\def\reredofiltersometxt[#1][#2]#3%
>  >   {\increment\txtcounter
>  >    \TeXtext[#1]\txtcounter{\switchtobodyfont[#2]\strut#3}%
>  >    \filtersometxt}
>
>  i think that we have it in the core

You have added the ability to use
    \sometxt[something]{abc}
with a background definition of:
    \definetextext[something]{\strut}
but I wanted to have two square brackets and Aditya has written a
small patch which does that. Let me explore a bit more in the new mkiv
sources and report back.

>  anyhow, just collects what does not work
>
>  (btw, i fixed something in textext ... i used to work only for code
>  passed as mpgraphic, but now it works also with libraries and so)

Thanks :) I didn't notice any weird behaviour so far, but I'm glad
that it's away before I started complaining about it :) :P

Mojca
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If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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___________________________________________________________________________________

Re: mplib & undefined commands

[Hans Hagen]

Mojca Miklavec wrote:

> Thanks. Still - I don't know if it's still needed at all and what
> exactly it was used for (maybe metapost has complained about too long
> lines long time ago).

indeed; also, at some point texexec would take care of it; nowadays the 
limitation is gone (in tex and mp)

> \sometxt is working, only some Aditya's extensions complain. I will
> test a bit, try to rewrite some bits and pieces, collect the missing
> parts and report back.

ok

> You have added the ability to use
>     \sometxt[something]{abc}
> with a background definition of:
>     \definetextext[something]{\strut}
> but I wanted to have two square brackets and Aditya has written a
> small patch which does that. Let me explore a bit more in the new mkiv
> sources and report back.

ok; keep in mind that in mkii things are bit tricky because there 
\sometxt is expanded first and replace by a reference next and a on 
standard optional [ parser is used

Hans

-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
      tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
-----------------------------------------------------------------
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : https://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________