Random selection of a word in a set with lua and mkiv

Random selection of a word in a set with lua and mkiv

[Otared Kavian]

Hi all,

Assuming that we have a set of words or expressions, say
	{Maths, Physics, Algebra, Analysis, Chemistry, Geometry, Wave equation, Schrödinger equation}
is it possible to write a lua function, named for instance
	randomselectword
which returns one of the words or expressions selected at random in the above set?
Indeed this is intended to be used in a TeX file processed with mkiv.

Thanks in advance for any idea and help.

Best regards: OK
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___________________________________________________________________________________

Re: Random selection of a word in a set with lua and mkiv

[Hans Hagen]

On 8-6-2011 6:52, Otared Kavian wrote:
> Hi all,
>
> Assuming that we have a set of words or expressions, say
> 	{Maths, Physics, Algebra, Analysis, Chemistry, Geometry, Wave equation, Schrödinger equation}
> is it possible to write a lua function, named for instance
> 	randomselectword
> which returns one of the words or expressions selected at random in the above set?
> Indeed this is intended to be used in a TeX file processed with mkiv.

something

function document.r(str)
   local set = utilities.parsers.settings_to_array(str)
   context(set[math.round(math.random(1,#set))])
end

\ctxlua{document.r("math physics")}

(untested)

-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
     tel: 038 477 53 69 | voip: 087 875 68 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: Random selection of a word in a set with lua and mkiv

[Mathieu Dupont]

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This following code works, except that the first random is always the same (Analysis) for some reason.
Anyone knows why ?
\enableregime[il1]\starttext\startluacode	userdata = userdata or {}	math.randomseed( os.time() )	function userdata.random(...)		context(arg[math.random(1, #arg)])	end\stopluacode\def\CHOOSERANDOM#1{\ctxlua{userdata.random(#1)}}\dorecurse{10}{\CHOOSERANDOM{"Maths", "Physics", "Algebra", "Analysis", "Chemistry", "Geometry", "Wave equation", "Schrödinger equation"}\par}\stoptext


Mathieu



> From: otared@gmail.com
> Date: Wed, 8 Jun 2011 18:52:36 +0200
> To: ntg-context@ntg.nl
> Subject: [NTG-context] Random selection of a word in a set with lua and mkiv
> 
> Hi all,
> 
> Assuming that we have a set of words or expressions, say
> 	{Maths, Physics, Algebra, Analysis, Chemistry, Geometry, Wave equation, Schrödinger equation}
> is it possible to write a lua function, named for instance
> 	randomselectword
> which returns one of the words or expressions selected at random in the above set?
> Indeed this is intended to be used in a TeX file processed with mkiv.
> 
> Thanks in advance for any idea and help.
> 
> Best regards: OK
> ___________________________________________________________________________________
> 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  : http://foundry.supelec.fr/projects/contextrev/
> wiki     : http://contextgarden.net
> ___________________________________________________________________________________
 		 	   		  

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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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archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________

Re: Random selection of a word in a set with lua and mkiv

[Hans Hagen]

On 8-6-2011 7:00, Mathieu Dupont wrote:
>
>
> This following code works, except that the first random is always the same (Analysis) for some reason.
> Anyone knows why ?
> \enableregime[il1]\starttext\startluacode	userdata = userdata or {}	math.randomseed( os.time() )	function userdata.random(...)		context(arg[math.random(1, #arg)])	end\stopluacode\def\CHOOSERANDOM#1{\ctxlua{userdata.random(#1)}}\dorecurse{10}{\CHOOSERANDOM{"Maths", "Physics", "Algebra", "Analysis", "Chemistry", "Geometry", "Wave equation", "Schrödinger equation"}\par}\stoptext

Because context remembers the seed (is reported in the log). Delete the 
tuc file and you will get another value. We could get oscillation 
otherwise.


-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
     tel: 038 477 53 69 | voip: 087 875 68 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  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________

Re: Random selection of a word in a set with lua and mkiv

[Mathieu Dupont]

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I see.So it can be fixed by simply adding the first line before the second :\CHOOSERANDOM{""}\CHOOSERANDOM{"Maths", "Physics", "Algebra", "Analysis", "Chemistry", "Geometry", "Wave equation", "Schrödinger equation"}Thanks, that fixes one of my problems !


Mathieu



> Date: Wed, 8 Jun 2011 19:07:50 +0200
> From: pragma@wxs.nl
> To: ntg-context@ntg.nl
> CC: mathieudupont@hotmail.com
> Subject: Re: [NTG-context] Random selection of a word in a set with lua and mkiv
> 
> On 8-6-2011 7:00, Mathieu Dupont wrote:
> >
> >
> > This following code works, except that the first random is always the same (Analysis) for some reason.
> > Anyone knows why ?
> > \enableregime[il1]\starttext\startluacode	userdata = userdata or {}	math.randomseed( os.time() )	function userdata.random(...)		context(arg[math.random(1, #arg)])	end\stopluacode\def\CHOOSERANDOM#1{\ctxlua{userdata.random(#1)}}\dorecurse{10}{\CHOOSERANDOM{"Maths", "Physics", "Algebra", "Analysis", "Chemistry", "Geometry", "Wave equation", "Schrödinger equation"}\par}\stoptext
> 
> Because context remembers the seed (is reported in the log). Delete the 
> tuc file and you will get another value. We could get oscillation 
> otherwise.
> 
> 
> -----------------------------------------------------------------
>                                            Hans Hagen | PRAGMA ADE
>                Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
>      tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
>                                               | www.pragma-pod.nl
> -----------------------------------------------------------------
 		 	   		  

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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
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
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___________________________________________________________________________________

Re: Random selection of a word in a set with lua and mkiv

[Otared Kavian]

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Dear Hans, dear Mathieu,

Thank you very much for your quick thoughts and solutions!
It is amazing how fast one gets a solution to one's problem on this list…

Just a note for Mathieu: I think that
	\enableregime[il1]
is not needed in mkiv, since a unicode regime is the default there (however with mkii I use
	\enableregime[utf]
but in the case we are discussing, one has to use lua, so mkiv is mandatory).

Best regards: OK


On 8 juin 2011, at 19:00, Mathieu Dupont wrote:

> 
> This following code works, except that the first random is always the same (Analysis) for some reason.
> 
> Anyone knows why ?
> 
> \enableregime[il1]
> \starttext
> \startluacode
> 	userdata = userdata or {}
> 	math.randomseed( os.time() )
> 	function userdata.random(...)
> 		context(arg[math.random(1, #arg)])
> 	end
> \stopluacode
> \def\CHOOSERANDOM#1{\ctxlua{userdata.random(#1)}}
> \dorecurse{10}{\CHOOSERANDOM{"Maths", "Physics", "Algebra", "Analysis", "Chemistry", "Geometry", "Wave equation", "Schrödinger equation"}\par}
> \stoptext
> 
> 
> 
> Mathieu
> 
> 
> 
> 
> > From: otared@gmail.com
> > Date: Wed, 8 Jun 2011 18:52:36 +0200
> > To: ntg-context@ntg.nl
> > Subject: [NTG-context] Random selection of a word in a set with lua and mkiv
> > 
> > Hi all,
> > 
> > Assuming that we have a set of words or expressions, say
> > {Maths, Physics, Algebra, Analysis, Chemistry, Geometry, Wave equation, Schrödinger equation}
> > is it possible to write a lua function, named for instance
> > randomselectword
> > which returns one of the words or expressions selected at random in the above set?
> > Indeed this is intended to be used in a TeX file processed with mkiv.
> > 
> > Thanks in advance for any idea and help.
> > 
> > Best regards: OK
> > ___________________________________________________________________________________
> > 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 : http://foundry.supelec.fr/projects/contextrev/
> > wiki : http://contextgarden.net
> > ___________________________________________________________________________________
> ___________________________________________________________________________________
> 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  : http://foundry.supelec.fr/projects/contextrev/
> wiki     : http://contextgarden.net
> ___________________________________________________________________________________

%%%%%%%%%%%%%%%%%%
Otared Kavian
Département de Mathématiques
Université de Versailles Saint-Quentin
Bâtiment Fermat
45 avenue des Etats Unis
78035 Versailles cedex

Téléphone: +33 1 39 25 46 42
Secrétariat: +33 1 39 25 46 44 
Secrétariat: +33 1 39 25 46 46

e-mail: Otared.Kavian@math.uvsq.fr





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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
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________

Re: Random selection of a word in a set with lua and mkiv

[Hans Hagen]

On 8-6-2011 10:12, Otared Kavian wrote:

> Thank you very much for your quick thoughts and solutions!
> It is amazing how fast one gets a solution to one's problem on this list…

well, this was an easy one -)

> Just a note for Mathieu: I think that
> 	\enableregime[il1]

depends on the input encoding ... regimes are still supported but indeed 
all ends up in utf internally

Hans

-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
     tel: 038 477 53 69 | voip: 087 875 68 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  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________