gnuplot module

gnuplot module

[Mojca Miklavec]

(was: gnuplot: `! Undefined control sequence.` with format specifier %)
(sorry, but it was too long to keep it all in title :)

On Mon, Dec 12, 2011 at 01:30, Paul Menzel wrote:
>
> Thank you for the follow up. I just blindly copied the example from the
> Wiki and did not pay any attention. In my thesis, I of course use the
> ConTeXt terminal.

What is the thesis going to be about? (I just noticed that mptopdf
complains about missing bibtex files. :)

> PS: Do you have a BibTeX entry for your gnuplot module?

Do you suggest me to publish an article about the terminal in arXiv,
to get at least some citations by the time when I need to submit my
thesis? :P

But no, I don't have it. I could try to create one though, but I'm not
even sure what the webpage should be. Many scientific programs just
ask to cite their first article in some scientific journal if one uses
the software, but I neither have an article nor homepage apart from
that (still outdated) wiki page.

There is some additional documentation on
https://github.com/mojca/context-gnuplot/tree/master/texmf/doc/context/third/gnuplot
(possibly also in minimals, but I'm not sure when I last synced the
version), but even that is outdated now since they required from me to
strip down terminal options parsing code.

Mojca
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___________________________________________________________________________________

Re: gnuplot module

[Paul Menzel]

[-- Attachment #1.1: Type: text/plain, Size: 1775 bytes --]

Am Montag, den 12.12.2011, 01:40 +0100 schrieb Mojca Miklavec:
> (was: gnuplot: `! Undefined control sequence.` with format specifier %)
> (sorry, but it was too long to keep it all in title :)
> 
> On Mon, Dec 12, 2011 at 01:30, Paul Menzel wrote:
> >
> > Thank you for the follow up. I just blindly copied the example from the
> > Wiki and did not pay any attention. In my thesis, I of course use the
> > ConTeXt terminal.
> 
> What is the thesis going to be about?

The topic is how long integrated random walks stay positiv. Not being
able to prove that formally for double-integrated(?) random walk, I am
doing some simulations.

> (I just noticed that mptopdf complains about missing bibtex files. :)

It seems to work for me.

> > PS: Do you have a BibTeX entry for your gnuplot module?
> 
> Do you suggest me to publish an article about the terminal in arXiv,
> to get at least some citations by the time when I need to submit my
> thesis? :P

That is an idea. ;-)

> But no, I don't have it. I could try to create one though, but I'm not
> even sure what the webpage should be. Many scientific programs just
> ask to cite their first article in some scientific journal if one uses
> the software, but I neither have an article nor homepage apart from
> that (still outdated) wiki page.
> 
> There is some additional documentation on
> https://github.com/mojca/context-gnuplot/tree/master/texmf/doc/context/third/gnuplot
> (possibly also in minimals, but I'm not sure when I last synced the
> version), but even that is outdated now since they required from me to
> strip down terminal options parsing code.

I thought asking does not hurt. ;-) So I guess I will just reference
ConTeXt and gnuplot then.


Thanks,

Paul

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___________________________________________________________________________________

Unable to generate luatex formats

[Michael Green]

I'm getting the following error when running this command: luatools -- 
ini --verbose --compile cont-en

LuaTools | running command: luatex --ini --lua="cont-en.luc" "/usr/ 
local/texlive/2007/texmf-dist/tex/context/base/cont-en.tex" \\dump
This is LuaTeX, Version snapshot-0.25.2-2008041101 (Web2C 7.5.6)  
(INITEX)
(/usr/local/texlive/2007/texmf-dist/tex/context/base/cont-en.tex
(/usr/local/texlive/2007/../texmf-local/tex/context/base/context.tex
(/usr/local/texlive/2007/../texmf-local/tex/context/base/syst-pln.tex)
(/usr/local/texlive/2007/../texmf-local/tex/context/base/syst-prm.tex)
(/usr/local/texlive/2007/../texmf-local/tex/context/base/luat-env.tex
! LuaTeX error [string "luas[0]"]:1: attempt to call field  
'luafilechunk' (a ni
l value).
\ctxluabyteload ...nvironment.luafilechunk("#1") }

\ ...fproductionrun \else \ctxluabyteload {#1}{#2}
                                                   \fi \global  
\everyloadluac...
l.168 \registerctxluafile{luat-env}{1.001}

?

I see that it is similar to an error that ZS had.

http://www.ntg.nl/pipermail/ntg-context/2008/030012.html

  But while ZS's problem was solved by updating, I'm installing for  
the first time with the newest versions.

What might be amiss? Thanks!

mjg
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___________________________________________________________________________________

Re: Unable to generate luatex formats

[John Devereux]

Taco Hoekwater <taco@elvenkind.com> writes:

> John Devereux wrote:
>> Michael Green <merely.ridiculous@gmail.com> writes:
>> 
>>> I'm getting the following error when running this command: luatools -- 
>>> ini --verbose --compile cont-en
>
>> Hi, I am getting a similar error on debian unstable.
>
> Both of you, can you check that
>
>    luatools luat-env.lua

I just get a blank line printed. And I get the same if I feed it the name
of a random, non-existent file. Which is not encouraging...

>
> finds the file? If not, try running luatools --generate

This produces:

  LuaTools | skipping /texmf-local/web2c/texmf.cnf
  LuaTools | skipping /texmf/web2c/texmf.cnf
  LuaTools | 
  LuaTools | runtime: 0.003 seconds

I then still get the same error unfortunately :(

-- 

John Devereux
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___________________________________________________________________________________

Re: Unable to generate luatex formats

[Hans Hagen]

John Devereux wrote:
> Taco Hoekwater <taco@elvenkind.com> writes:
> 
>> John Devereux wrote:
>>> Michael Green <merely.ridiculous@gmail.com> writes:
>>>
>>>> I'm getting the following error when running this command: luatools -- 
>>>> ini --verbose --compile cont-en
>>> Hi, I am getting a similar error on debian unstable.
>> Both of you, can you check that
>>
>>    luatools luat-env.lua
> 
> I just get a blank line printed. And I get the same if I feed it the name
> of a random, non-existent file. Which is not encouraging...
> 
>> finds the file? If not, try running luatools --generate
> 
> This produces:
> 
>   LuaTools | skipping /texmf-local/web2c/texmf.cnf
>   LuaTools | skipping /texmf/web2c/texmf.cnf
>   LuaTools | 
>   LuaTools | runtime: 0.003 seconds

aha, so how about setting the env variables TEXMFCNF and TEXMF

Hans

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               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
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___________________________________________________________________________________

Re: Unable to generate luatex formats

[John Devereux]

Hans Hagen <pragma@wxs.nl> writes:

> John Devereux wrote:
>> Taco Hoekwater <taco@elvenkind.com> writes:
>> 
>>> John Devereux wrote:
>>>> Michael Green <merely.ridiculous@gmail.com> writes:
>>>>
>>>>> I'm getting the following error when running this command: luatools -- 
>>>>> ini --verbose --compile cont-en
>>>> Hi, I am getting a similar error on debian unstable.
>>> Both of you, can you check that
>>>
>>>    luatools luat-env.lua
>> 
>> I just get a blank line printed. And I get the same if I feed it the name
>> of a random, non-existent file. Which is not encouraging...
>> 
>>> finds the file? If not, try running luatools --generate
>> 
>> This produces:
>> 
>>   LuaTools | skipping /texmf-local/web2c/texmf.cnf
>>   LuaTools | skipping /texmf/web2c/texmf.cnf
>>   LuaTools | 
>>   LuaTools | runtime: 0.003 seconds
>
> aha, so how about setting the env variables TEXMFCNF and TEXMF
>
> Hans

aha indeed!

Setting TEXMF was missing from the instructions in debian... Or perhaps I
messed up my configuration in the past.

  luatools --ini --compile cont-en

works now.

I will start playing with it.

A quick try of the example snippet did not work (see dump at end of
message) but I will look into it more and try Mojcas advice re
ctxtools --update.

Thanks.


============================================================

~$cat temp.tex

\starttext
	\ctxlua{a = 1.5 ; b = 1.8 ; c = a*b ; tex.print(c) ;}
\stoptext

~$ texexec --lua temp.tex


TeXExec | processing document 'temp.tex'
TeXExec | no ctx file found
TeXExec | tex processing method: context
TeXExec | TeX run 1
TeXExec | writing option file temp.top
TeXExec | using randomseed 1151
TeXExec | tex engine: luatex
TeXExec | tex format: cont-en

(./temp.tex

ConTeXt  ver: 2008.01.28 21:28 MKIV  fmt: 2008.4.15  int: english/english

language        : language en is active
report >> utilityfile: not present
system          : cont-new loaded
(/usr/share/texmf/tex/context/base/cont-new.tex
systems         : beware: some patches loaded from cont-new.tex
(/usr/share/texmf/tex/context/base/cont-new.mkiv
lua            : used config path - /usr/share/texmf/web2c/texmf.cnf
lua            : used cache path - //home/jd/luatex-cache/context/6300afb4995fe38c77e9b86ed1ef1028
) (/usr/share/texmf/tex/context/base/cont-mtx.tex))
system         : cont-old loaded
(/usr/share/texmf/tex/context/base/cont-old.tex
loading        : Context Old Macros
)
system         : cont-fil loaded
(/usr/share/texmf/tex/context/base/cont-fil.tex
loading        : Context File Synonyms
)
bodyfont       : 12pt rm is loaded
error >> define font: font with name msam7 is not found
error >> define font: name: msam7, loading aborted
! Font \*7ptmmmarm*:=msam7 at 7pt not loadable: metric data not found or bad.
<to be read again> 
                   \relax 
\xxdododefinefont ...tspec {#4}\newfontidentifier 
                                                  \let \localrelativefontsiz...
\dodosetmathfamilyA ...amily \fontsize \endcsname 
                                                  \else \ifcsname \fontbody ...
\dosetmathfamily ...athfamily \scriptscriptfont #1
                                                  \let \fontbody #3\dodosetm...
<inserted text> ...\scriptscriptface \c!ma \empty 
                                                  \dosetmathfamily \mbfam \t...
\synchronizemath ...athfonts \the \mathstrategies 
                                                  \fi 
...
l.1 
    \starttext
? 



-- 

John Devereux
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___________________________________________________________________________________

Re: Unable to generate luatex formats

[Mojca Miklavec]

On Tue, Apr 15, 2008 at 12:37 PM, John Devereux wrote:
> Hans Hagen <pragma@wxs.nl> writes:
>
>  > John Devereux wrote:
>  >> Taco Hoekwater <taco@elvenkind.com> writes:
>  >>
>  >>> John Devereux wrote:
>  >>>> Michael Green <merely.ridiculous@gmail.com> writes:
>  >>>>
>  >>>>> I'm getting the following error when running this command: luatools --
>  >>>>> ini --verbose --compile cont-en
>  >>>> Hi, I am getting a similar error on debian unstable.
>  >>> Both of you, can you check that
>  >>>
>  >>>    luatools luat-env.lua
>  >>
>  >> I just get a blank line printed. And I get the same if I feed it the name
>  >> of a random, non-existent file. Which is not encouraging...
>  >>
>  >>> finds the file? If not, try running luatools --generate
>  >>
>  >> This produces:
>  >>
>  >>   LuaTools | skipping /texmf-local/web2c/texmf.cnf
>  >>   LuaTools | skipping /texmf/web2c/texmf.cnf
>  >>   LuaTools |
>  >>   LuaTools | runtime: 0.003 seconds
>  >
>  > aha, so how about setting the env variables TEXMFCNF and TEXMF
>  >
>  > Hans
>
>  aha indeed!
>
>  Setting TEXMF was missing from the instructions in debian... Or perhaps I
>  messed up my configuration in the past.
>
>   luatools --ini --compile cont-en
>
>  works now.
>
>  I will start playing with it.
>
>  A quick try of the example snippet did not work (see dump at end of
>  message) but I will look into it more and try Mojcas advice re
>  ctxtools --update.

ctxtools --update won't help you as you have some missing fonts (msam7.tfm).
http://packages.debian.org/etch/all/texlive-base/filelist claims that
the file should be present in texlive-base in Debian, so it's a bit
confusing.

Mojca


>  ============================================================
>
>  ~$cat temp.tex
>
>  \starttext
>         \ctxlua{a = 1.5 ; b = 1.8 ; c = a*b ; tex.print(c) ;}
>  \stoptext
>
>  ~$ texexec --lua temp.tex
>
>
>  TeXExec | processing document 'temp.tex'
>  TeXExec | no ctx file found
>  TeXExec | tex processing method: context
>  TeXExec | TeX run 1
>  TeXExec | writing option file temp.top
>  TeXExec | using randomseed 1151
>  TeXExec | tex engine: luatex
>  TeXExec | tex format: cont-en
>
>  (./temp.tex
>
>  ConTeXt  ver: 2008.01.28 21:28 MKIV  fmt: 2008.4.15  int: english/english
>
>  language        : language en is active
>  report >> utilityfile: not present
>  system          : cont-new loaded
>  (/usr/share/texmf/tex/context/base/cont-new.tex
>  systems         : beware: some patches loaded from cont-new.tex
>  (/usr/share/texmf/tex/context/base/cont-new.mkiv
>  lua            : used config path - /usr/share/texmf/web2c/texmf.cnf
>  lua            : used cache path - //home/jd/luatex-cache/context/6300afb4995fe38c77e9b86ed1ef1028
>  ) (/usr/share/texmf/tex/context/base/cont-mtx.tex))
>  system         : cont-old loaded
>  (/usr/share/texmf/tex/context/base/cont-old.tex
>  loading        : Context Old Macros
>  )
>  system         : cont-fil loaded
>  (/usr/share/texmf/tex/context/base/cont-fil.tex
>  loading        : Context File Synonyms
>  )
>  bodyfont       : 12pt rm is loaded
>  error >> define font: font with name msam7 is not found
>  error >> define font: name: msam7, loading aborted
>  ! Font \*7ptmmmarm*:=msam7 at 7pt not loadable: metric data not found or bad.
>  <to be read again>
>                    \relax
>  \xxdododefinefont ...tspec {#4}\newfontidentifier
>                                                   \let \localrelativefontsiz...
>  \dodosetmathfamilyA ...amily \fontsize \endcsname
>                                                   \else \ifcsname \fontbody ...
>  \dosetmathfamily ...athfamily \scriptscriptfont #1
>                                                   \let \fontbody #3\dodosetm...
>  <inserted text> ...\scriptscriptface \c!ma \empty
>                                                   \dosetmathfamily \mbfam \t...
>  \synchronizemath ...athfonts \the \mathstrategies
>                                                   \fi
>  ...
>  l.1
>     \starttext
>  ?
>
>
>
>  --
>
>  John Devereux
___________________________________________________________________________________
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___________________________________________________________________________________

Re: Unable to generate luatex formats

[John Devereux]

"Mojca Miklavec" <mojca.miklavec.lists@gmail.com> writes:

> On Tue, Apr 15, 2008 at 12:37 PM, John Devereux wrote:
>> Hans Hagen <pragma@wxs.nl> writes:
>>
>>  > John Devereux wrote:
>>  >> Taco Hoekwater <taco@elvenkind.com> writes:
>>  >>
>>  >>> John Devereux wrote:
>>  >>>> Michael Green <merely.ridiculous@gmail.com> writes:
>>  >>>>
>>  >>>>> I'm getting the following error when running this command: luatools --
>>  >>>>> ini --verbose --compile cont-en
>>  >>>> Hi, I am getting a similar error on debian unstable.
>>  >>> Both of you, can you check that
>>  >>>
>>  >>>    luatools luat-env.lua
>>  >>
>>  >> I just get a blank line printed. And I get the same if I feed it the name
>>  >> of a random, non-existent file. Which is not encouraging...
>>  >>
>>  >>> finds the file? If not, try running luatools --generate
>>  >>
>>  >> This produces:
>>  >>
>>  >>   LuaTools | skipping /texmf-local/web2c/texmf.cnf
>>  >>   LuaTools | skipping /texmf/web2c/texmf.cnf
>>  >>   LuaTools |
>>  >>   LuaTools | runtime: 0.003 seconds
>>  >
>>  > aha, so how about setting the env variables TEXMFCNF and TEXMF
>>  >
>>  > Hans
>>
>>  aha indeed!
>>
>>  Setting TEXMF was missing from the instructions in debian... Or perhaps I
>>  messed up my configuration in the past.
>>
>>   luatools --ini --compile cont-en
>>
>>  works now.
>>
>>  I will start playing with it.
>>
>>  A quick try of the example snippet did not work (see dump at end of
>>  message) but I will look into it more and try Mojcas advice re
>>  ctxtools --update.
>
> ctxtools --update won't help you as you have some missing fonts (msam7.tfm).
> http://packages.debian.org/etch/all/texlive-base/filelist claims that
> the file should be present in texlive-base in Debian, so it's a bit
> confusing.
>
> Mojca

Hi Mojca,

There is a file here:

  /usr/share/texmf-texlive/fonts/tfm/public/ams/msam7.tfm

But I don't know what else is needed.

John

>>  ============================================================
>>
>>  ~$cat temp.tex
>>
>>  \starttext
>>         \ctxlua{a = 1.5 ; b = 1.8 ; c = a*b ; tex.print(c) ;}
>>  \stoptext
>>
>>  ~$ texexec --lua temp.tex
>>
>>
>>  TeXExec | processing document 'temp.tex'
>>  TeXExec | no ctx file found
>>  TeXExec | tex processing method: context
>>  TeXExec | TeX run 1
>>  TeXExec | writing option file temp.top
>>  TeXExec | using randomseed 1151
>>  TeXExec | tex engine: luatex
>>  TeXExec | tex format: cont-en
>>
>>  (./temp.tex
>>
>>  ConTeXt  ver: 2008.01.28 21:28 MKIV  fmt: 2008.4.15  int: english/english
>>
>>  language        : language en is active
>>  report >> utilityfile: not present
>>  system          : cont-new loaded
>>  (/usr/share/texmf/tex/context/base/cont-new.tex
>>  systems         : beware: some patches loaded from cont-new.tex
>>  (/usr/share/texmf/tex/context/base/cont-new.mkiv
>>  lua            : used config path - /usr/share/texmf/web2c/texmf.cnf
>>  lua            : used cache path - //home/jd/luatex-cache/context/6300afb4995fe38c77e9b86ed1ef1028
>>  ) (/usr/share/texmf/tex/context/base/cont-mtx.tex))
>>  system         : cont-old loaded
>>  (/usr/share/texmf/tex/context/base/cont-old.tex
>>  loading        : Context Old Macros
>>  )
>>  system         : cont-fil loaded
>>  (/usr/share/texmf/tex/context/base/cont-fil.tex
>>  loading        : Context File Synonyms
>>  )
>>  bodyfont       : 12pt rm is loaded
>>  error >> define font: font with name msam7 is not found
>>  error >> define font: name: msam7, loading aborted
>>  ! Font \*7ptmmmarm*:=msam7 at 7pt not loadable: metric data not found or bad.
>>  <to be read again>
>>                    \relax
>>  \xxdododefinefont ...tspec {#4}\newfontidentifier
>>                                                   \let \localrelativefontsiz...
>>  \dodosetmathfamilyA ...amily \fontsize \endcsname
>>                                                   \else \ifcsname \fontbody ...
>>  \dosetmathfamily ...athfamily \scriptscriptfont #1
>>                                                   \let \fontbody #3\dodosetm...
>>  <inserted text> ...\scriptscriptface \c!ma \empty
>>                                                   \dosetmathfamily \mbfam \t...
>>  \synchronizemath ...athfonts \the \mathstrategies
>>                                                   \fi
>>  ...
>>  l.1
>>     \starttext
>>  ?

-- 

John Devereux
___________________________________________________________________________________
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___________________________________________________________________________________

Re: Unable to generate luatex formats

[Mojca Miklavec]

On Tue, Apr 15, 2008 at 1:25 PM, John Devereux wrote:
>
> "Mojca Miklavec" writes:
>
>  >>  Setting TEXMF was missing from the instructions in debian... Or perhaps I
>  >>  messed up my configuration in the past.
>  >>
>  >>   luatools --ini --compile cont-en
>  >>
>  >>  works now.
>  >>
>  >>  I will start playing with it.
>  >>
>  >>  A quick try of the example snippet did not work (see dump at end of
>  >>  message) but I will look into it more and try Mojcas advice re
>  >>  ctxtools --update.
>  >
>  > ctxtools --update won't help you as you have some missing fonts (msam7.tfm).
>  > http://packages.debian.org/etch/all/texlive-base/filelist claims that
>  > the file should be present in texlive-base in Debian, so it's a bit
>  > confusing.
>  >
>  > Mojca
>
>  Hi Mojca,
>
>  There is a file here:
>
>   /usr/share/texmf-texlive/fonts/tfm/public/ams/msam7.tfm
>
>  But I don't know what else is needed.

I would say that the installation might be slightly broken, even if
only a few variables are missing. How exactly did you install LuaTeX
and latest ConTeXt?

>  Setting TEXMF was missing from the instructions in debian...

This should not happen, but once you answer the question about how you
have installed it, it might become clearer.

Some time ago there was some problem on debian since Hans's lua
scripts were unable to parse TEXMFCNF (texmf.cnf) files properly, but
this might have been resolved in the meantime.

Mojca
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___________________________________________________________________________________

Re: Unable to generate luatex formats

[John Devereux]

"Mojca Miklavec" <mojca.miklavec.lists@gmail.com> writes:

> On Tue, Apr 15, 2008 at 1:25 PM, John Devereux wrote:
>>
>> "Mojca Miklavec" writes:
>>
>>  >>  Setting TEXMF was missing from the instructions in debian... Or perhaps I
>>  >>  messed up my configuration in the past.
>>  >>
>>  >>   luatools --ini --compile cont-en
>>  >>
>>  >>  works now.
>>  >>
>>  >>  I will start playing with it.
>>  >>
>>  >>  A quick try of the example snippet did not work (see dump at end of
>>  >>  message) but I will look into it more and try Mojcas advice re
>>  >>  ctxtools --update.
>>  >
>>  > ctxtools --update won't help you as you have some missing fonts (msam7.tfm).
>>  > http://packages.debian.org/etch/all/texlive-base/filelist claims that
>>  > the file should be present in texlive-base in Debian, so it's a bit
>>  > confusing.
>>  >
>>  > Mojca
>>
>>  Hi Mojca,
>>
>>  There is a file here:
>>
>>   /usr/share/texmf-texlive/fonts/tfm/public/ams/msam7.tfm
>>
>>  But I don't know what else is needed.
>
> I would say that the installation might be slightly broken, even if
> only a few variables are missing. How exactly did you install LuaTeX
> and latest ConTeXt?

Mojca,

I followed the instructions here, where applicable for debian sid:

<http://wiki.contextgarden.net/Debian_installation>

Then the instruction in the README.MarkIV that appeared in the pckage
documentation directory (appended to end of post).

However I have been using context for years, and may well have messed
something up! It seems to work OK with my "normal" documents. Except I
notice \usemodule[gnuplot] does not work.

John

>>  Setting TEXMF was missing from the instructions in debian...
>
> This should not happen, but once you answer the question about how you
> have installed it, it might become clearer.
>
> Some time ago there was some problem on debian since Hans's lua
> scripts were unable to parse TEXMFCNF (texmf.cnf) files properly, but
> this might have been resolved in the meantime.

============================================================

README.luatex
=============

Mark IV is the name of the LuaTeX-aware part of ConTeXt; that is, when you
use ConTeXt over the LuaTeX engine instead of PDFTeX or XeTeX. You run it
with texexec --lua.

Currently the integration of Mark IV into Debian is not completely done,
especially because the details are currently worked out (see the dev-context
mailing list).

If you want to start using Mark IV the following the following few points
should get you started:

1) Right versions:
    luatex >= 0.20.2
    context >= 2007.12.20

2) environment variables and luatex-cache
   Mark IV ships its own implementation of file searching and doesn't
   use the ls-R databases, but luatex-cache. You have to tell luatools
   where to find texmf.cnf, and then generate the cache:
   	export TEXMFCNF=/usr/share/texmf/web2c
	luatools --generate --verbose
   This will generate the luatex-cache in $HOME. If you want to put it
   somewhere else set (and export) the TEXMFCACHE variable (like
   export TEXMFCACHE=/tmp)

3) Generate a Mark IV format
   This is not integrated into the usual format building process, and 
   probably will need some time to be worked out completely as the 
   current fmtutil cannot cope with Mark IV formats. Call
   	luatools --ini --compile cont-en

4) Now you can try some simple document like (thanks to Arthur Reutenauer)
	\starttext

	\ctxlua{a = 1.5 ; b = 1.8 ; c = a*b ; tex.print(c) ;}
	or the equivalent:
	\startlua
	a = 1.5
	b = 1.8
	c = a*b
	tex.print(c)
	\stoplua

	You can also do more elaborate calculations with the lua math library:
	\ctxlua{tex.print("$\string\\sqrt{2} = " .. math.sqrt(2) .. "$")}

	\stoptext
  and run it with
  	texexec --lua filename.tex


-- 

John Devereux
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Re: Unable to generate luatex formats

[Mojca Miklavec]

>  However I have been using context for years, and may well have messed
>  something up! It seems to work OK with my "normal" documents. Except I
>  notice \usemodule[gnuplot] does not work.

What exactly goes wrong?

Mojca
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Re: Unable to generate luatex formats

[John Devereux]

"Mojca Miklavec" <mojca.miklavec.lists@gmail.com> writes:

>>  However I have been using context for years, and may well have messed
>>  something up! It seems to work OK with my "normal" documents. Except I
>>  notice \usemodule[gnuplot] does not work.
>
> What exactly goes wrong?

I have got this working now too. The problems were:

  - the syntax seems to have changed since I originally used it. Used
    to be \startGNUPLOTgraphic now needs to be \startGNUPLOTscript

  - I missed the bit on the wiki about enabling write18

  - I was misled by some examples (in the source code) into thinking
    that parameters go in curly brackets, but this does not work for
    me (and fails silently).

So in the source code you have

  \startGNUPLOTscript{sin}
      plot sin(x)
  \stopGNUPLOTscript
  \useGNUPLOTgraphic{sin}

but I needed


  \startGNUPLOTscript[sin]
      plot sin(x)
  \stopGNUPLOTscript
  \useGNUPLOTgraphic[sin]

to make it work.


-- 

John Devereux
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Re: Unable to generate luatex formats

[Mojca Miklavec]

On Wed, Apr 16, 2008 at 5:18 PM, John Devereux wrote:
> "Mojca Miklavec" writes:
>
> >>  However I have been using context for years, and may well have messed
>  >>  something up! It seems to work OK with my "normal" documents. Except I
>  >>  notice \usemodule[gnuplot] does not work.
>  >
>  > What exactly goes wrong?
>
>  I have got this working now too. The problems were:
>
>   - the syntax seems to have changed since I originally used it. Used
>     to be \startGNUPLOTgraphic now needs to be \startGNUPLOTscript
>
>   - I missed the bit on the wiki about enabling write18
>
>   - I was misled by some examples (in the source code) into thinking
>     that parameters go in curly brackets, but this does not work for
>     me (and fails silently).
>
>  So in the source code you have
>
>   \startGNUPLOTscript{sin}
>       plot sin(x)
>   \stopGNUPLOTscript
>   \useGNUPLOTgraphic{sin}
>
>  but I needed
>
>
>   \startGNUPLOTscript[sin]
>       plot sin(x)
>   \stopGNUPLOTscript
>   \useGNUPLOTgraphic[sin]
>
>  to make it work.

I'm sorry about that. Yes, the syntax change is my fault, but it won't
happen again. If I wanted to support
   \useGNUPLOTgraphic[sin][1,3][width=.7\textwidth]
and alike, the curly braces didn't fit in so nicely.

The module has initially been part of ConTeXt (Hans has written most
of it at the beginning), but it was easier to develop it as a module
once I started writing metapost code for the dedicated terminal etc.

I have removed the faulty examples a few days ago (just didn't upload
the new version yet). I was trying to write code in such a way that
curly braces would work as well for backward compatibility, but failed
to do so (the code is there, but only half of it works). However, all
of these changes have happened rather early in the process and won't
happen again.

Moreover, it would be nice to get the TikZ terminal working with
ConTeXt (I need to find some time for it, and then finally convince
the gnuplot developers to include it into the binary).

Mojca
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___________________________________________________________________________________

gnuplot module

[John Devereux]

"Mojca Miklavec" <mojca.miklavec.lists@gmail.com> writes:

> On Wed, Apr 16, 2008 at 5:18 PM, John Devereux wrote:
>> "Mojca Miklavec" writes:
>>
>> >>  However I have been using context for years, and may well have messed
>>  >>  something up! It seems to work OK with my "normal" documents. Except I
>>  >>  notice \usemodule[gnuplot] does not work.
>>  >
>>  > What exactly goes wrong?
>>
>>  I have got this working now too. The problems were:
>>
>>   - the syntax seems to have changed since I originally used it. Used
>>     to be \startGNUPLOTgraphic now needs to be \startGNUPLOTscript
>>
>>   - I missed the bit on the wiki about enabling write18
>>
>>   - I was misled by some examples (in the source code) into thinking
>>     that parameters go in curly brackets, but this does not work for
>>     me (and fails silently).
>>
>>  So in the source code you have
>>
>>   \startGNUPLOTscript{sin}
>>       plot sin(x)
>>   \stopGNUPLOTscript
>>   \useGNUPLOTgraphic{sin}
>>
>>  but I needed
>>
>>
>>   \startGNUPLOTscript[sin]
>>       plot sin(x)
>>   \stopGNUPLOTscript
>>   \useGNUPLOTgraphic[sin]
>>
>>  to make it work.
>
> I'm sorry about that. Yes, the syntax change is my fault, but it won't
> happen again. If I wanted to support
>    \useGNUPLOTgraphic[sin][1,3][width=.7\textwidth]
> and alike, the curly braces didn't fit in so nicely.

Yes it's fine, the square brackets are better.

> The module has initially been part of ConTeXt (Hans has written most
> of it at the beginning), but it was easier to develop it as a module
> once I started writing metapost code for the dedicated terminal etc.
>
> I have removed the faulty examples a few days ago (just didn't upload
> the new version yet). I was trying to write code in such a way that
> curly braces would work as well for backward compatibility, but failed
> to do so (the code is there, but only half of it works). However, all
> of these changes have happened rather early in the process and won't
> happen again.
>
> Moreover, it would be nice to get the TikZ terminal working with
> ConTeXt (I need to find some time for it, and then finally convince
> the gnuplot developers to include it into the binary).

I really like gnuplot and the gnuplot module. It is great to be able
to include the data inline with the document. And it would be nice to
see it part of the distribution. I am using a stock debian gnuplot, so
I don't know the implications of the context and TikZ terminals. Does
it mean I would not end up with so many  *-gnuplot-* files? :)

-- 

John Devereux
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___________________________________________________________________________________

Re: gnuplot module

[Mojca Miklavec]

On Wed, Apr 16, 2008 at 9:24 PM, John Devereux wrote:
> "Mojca Miklavec" writes:
>
>  I really like gnuplot and the gnuplot module. It is great to be able
>  to include the data inline with the document. And it would be nice to
>  see it part of the distribution. I am using a stock debian gnuplot, so
>  I don't know the implications of the context and TikZ terminals.

No major difference. But it would (should, at least) be compatible
with all the three: LaTeX/plain/ConTeXt.

>  Does
>  it mean I would not end up with so many  *-gnuplot-* files? :)

When I have developed the terminal with enormous Hans's and Taco's
help, I have asked him to implement some functionality to delete the
files with ctxtools --purge. He has implemented some functionality
(\registertempfile or something - need to check), but it deletes the
files automatically at the end of run, so one either needs to:
- delete the files
- leave the files
- no option to delete files with ctxtools
The problem with deleting the files immediately is that if you make a
trivial mistake in the gnuplot script, gnuplot won't create any
output, and it's rather difficult to spot the error in the long bunch
of ConTeXt messages. You just get no graphic, any you wonder why.

Do you have any suggestions about how to reduce the number of files in
some sensible way?

Mojca
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___________________________________________________________________________________

Re: gnuplot module

[Henning Hraban Ramm]

Am 2008-04-17 um 15:42 schrieb Mojca Miklavec:
> Do you have any suggestions about how to reduce the number of files in
> some sensible way?

I don't use gnuplot, but it's the same problem with lilypond - lots  
of files cluttering my project directory.

It would be a good solution if we could write all those temp files to  
a configurable directory (that one can delete or not).
The problem is probably that our client app (gnuplot, lilypond) or at  
least ConTeXt's "has changed" testing depends on that files.
If you find a solution for gnuplot I'd like to copy it for lilypond.


Greetlings from Lake Constance!
Hraban
---
http://www.fiee.net/texnique/
http://wiki.contextgarden.net
https://www.cacert.org (I'm an assurer)

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___________________________________________________________________________________

Re: gnuplot module

[Mojca Miklavec]

On Thu, Apr 17, 2008 at 4:23 PM, Henning Hraban Ramm wrote:
> Am 2008-04-17 um 15:42 schrieb Mojca Miklavec:
>
> > Do you have any suggestions about how to reduce the number of files in
>  > some sensible way?
>
>  I don't use gnuplot, but it's the same problem with lilypond - lots
>  of files cluttering my project directory.
>
>  It would be a good solution if we could write all those temp files to
>  a configurable directory (that one can delete or not).

A configurable directory would indeed be the perfect solution (also
for other temp files).

>  The problem is probably that our client app (gnuplot, lilypond) or at
>  least ConTeXt's "has changed" testing depends on that files.

Which is not always desirable. If I have
plot 'data.dat'
and change data, then the graph won't be recompiled.

Mojca
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___________________________________________________________________________________

Re: gnuplot module

[John Devereux]

"Mojca Miklavec" <mojca.miklavec.lists@gmail.com> writes:

> On Wed, Apr 16, 2008 at 9:24 PM, John Devereux wrote:
>> "Mojca Miklavec" writes:
>>
>>  I really like gnuplot and the gnuplot module. It is great to be able
>>  to include the data inline with the document. And it would be nice to
>>  see it part of the distribution. I am using a stock debian gnuplot, so
>>  I don't know the implications of the context and TikZ terminals.
>
> No major difference. But it would (should, at least) be compatible
> with all the three: LaTeX/plain/ConTeXt.
>
>>  Does
>>  it mean I would not end up with so many  *-gnuplot-* files? :)
>
> When I have developed the terminal with enormous Hans's and Taco's
> help, I have asked him to implement some functionality to delete the
> files with ctxtools --purge. He has implemented some functionality
> (\registertempfile or something - need to check), but it deletes the
> files automatically at the end of run, so one either needs to:
> - delete the files
> - leave the files
> - no option to delete files with ctxtools
> The problem with deleting the files immediately is that if you make a
> trivial mistake in the gnuplot script, gnuplot won't create any
> output, and it's rather difficult to spot the error in the long bunch
> of ConTeXt messages. You just get no graphic, any you wonder why.
>
> Do you have any suggestions about how to reduce the number of files in
> some sensible way?

The ideal would be an option when processing the source file, to turn
off file deletion. Like

texexec document.tex --keep-temporaries

So by default the source directory would be kept clean, but when
"debugging" the intermediate files would be available.

Or perhaps some option passed to \startGNUPLOTscript (or
\useGNUPLOTgraphic) if that is possible?

 \startGNUPLOTscript[example][keeptemporaryfile=yes]

That might be better otherwise debugging a big document could result
it hundreds of files.

Another possibility would be to put the files in /tmp.

-- 

John Devereux
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___________________________________________________________________________________

Re: gnuplot module

[Mojca Miklavec]

On Thu, Apr 17, 2008 at 4:27 PM, John Devereux wrote:
> "Mojca Miklavec" writes:
>
>  > Do you have any suggestions about how to reduce the number of files in
>  > some sensible way?
>
>  The ideal would be an option when processing the source file, to turn
>  off file deletion. Like
>
>  texexec document.tex --keep-temporaries
>
>  So by default the source directory would be kept clean, but when
>  "debugging" the intermediate files would be available.
>
>  Or perhaps some option passed to \startGNUPLOTscript (or
>  \useGNUPLOTgraphic) if that is possible?
>
>   \startGNUPLOTscript[example][keeptemporaryfile=yes]

This sounds fine (having a --debug-like option), but one more question
- what about caching existing results? (If all files are deleted, then
it's not possible to ask for --ifchanged, so gnuplot needs to be run
each time.)

>  That might be better otherwise debugging a big document could result
>  it hundreds of files.
>
>  Another possibility would be to put the files in /tmp.

That's not too practical.

Mojca
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Re: gnuplot module

[John Devereux]

"Mojca Miklavec" <mojca.miklavec.lists@gmail.com> writes:

> On Thu, Apr 17, 2008 at 4:27 PM, John Devereux wrote:
>> "Mojca Miklavec" writes:
>>
>>  > Do you have any suggestions about how to reduce the number of files in
>>  > some sensible way?
>>
>>  The ideal would be an option when processing the source file, to turn
>>  off file deletion. Like
>>
>>  texexec document.tex --keep-temporaries
>>
>>  So by default the source directory would be kept clean, but when
>>  "debugging" the intermediate files would be available.
>>
>>  Or perhaps some option passed to \startGNUPLOTscript (or
>>  \useGNUPLOTgraphic) if that is possible?
>>
>>   \startGNUPLOTscript[example][keeptemporaryfile=yes]
>
> This sounds fine (having a --debug-like option), but one more question
> - what about caching existing results? (If all files are deleted, then
> it's not possible to ask for --ifchanged, so gnuplot needs to be run
> each time.)

Actually the configurable temp dir would be OK too.

  texexec document.tex --tempdir=./temporaries

Regarding cacheing, this would be nice but I don't know if it can be
done. I think you still need to run gnuplot in case the data has
changed.

>>  That might be better otherwise debugging a big document could result
>>  it hundreds of files.
>>
>>  Another possibility would be to put the files in /tmp.
>
> That's not too practical.



-- 

John Devereux
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