Re: [NTG-context] Is it possible to pass unmarked paragraphs into Lua for processing

2010-10-14 Thread Aditya Mahajan

On Thu, 14 Oct 2010, Kevin D. Robbins wrote:


Hi all,

I am wondering if and how it might be possible to catch all unmarked
paragraphs in a TeX file and pass them into Lua. So, in the following
example, each of the first three unmarked paragraphs would be passed to the
Lua function "process_paragraph" for optional processing, but the fourth
paragraph between \startmarkedparagraph...\stopmarkedparagraph would not be
passed to "process_paragraph".


If you are willing to add some more markup, then you can do

\starttext
\startMarking
...
\startmarkedparagraph
...
\stopmarkedparagraph
\stopMarking
\stoptext

where \startMarking .. \stopMarking passes everything to lua 
(http://wiki.contextgarden.net/Programming_in_LuaTeX#Manipulating_verbatim_text_for_dummies) 
and you can then search for \startmarkedparagraph ... \stopmarkedparagraph 
in lua.


Or you could just redefine \starttext ... \stoptext to do the capturing. 
Something like:


\let\normalstarttext\starttext
\let\normalstoptext\stoptext

\def\starttext{}

And in the lua end call \normalstarttext before starting typesetting and 
\normalstoptext after all typesetting is done.


Aditya
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Re: [NTG-context] Is it possible to pass unmarked paragraphs into Lua for processing

2010-10-15 Thread Kevin D. Robbins
I confess, I hadn't considered anything quite so bold as reading the whole
of the text into Lua and then processing it back out. I suppose I was
expecting one of the true TeXperts to offer suggestions involving
\appendtoks ... \to \everypar.

I also realized that I forgot to mention that I want to be able to do this
all while using the ConTeXt project/product/component support.

Any other suggestions on how I could process unmarked paragraphs in Lua?

Kevin

On Thu, Oct 14, 2010 at 3:48 PM, Aditya Mahajan  wrote:

> On Thu, 14 Oct 2010, Kevin D. Robbins wrote:
>
>  Hi all,
>>
>> I am wondering if and how it might be possible to catch all unmarked
>> paragraphs in a TeX file and pass them into Lua. So, in the following
>> example, each of the first three unmarked paragraphs would be passed to
>> the
>> Lua function "process_paragraph" for optional processing, but the fourth
>> paragraph between \startmarkedparagraph...\stopmarkedparagraph would not
>> be
>> passed to "process_paragraph".
>>
>
> If you are willing to add some more markup, then you can do
>
> \starttext
> \startMarking
> ...
> \startmarkedparagraph
> ...
> \stopmarkedparagraph
> \stopMarking
> \stoptext
>
> where \startMarking .. \stopMarking passes everything to lua (
> http://wiki.contextgarden.net/Programming_in_LuaTeX#Manipulating_verbatim_text_for_dummies)
> and you can then search for \startmarkedparagraph ... \stopmarkedparagraph
> in lua.
>
> Or you could just redefine \starttext ... \stoptext to do the capturing.
> Something like:
>
> \let\normalstarttext\starttext
> \let\normalstoptext\stoptext
>
> \def\starttext{}
>
> And in the lua end call \normalstarttext before starting typesetting and
> \normalstoptext after all typesetting is done.
>
> Aditya
>
> ___
> 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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> wiki : http://contextgarden.net
>
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>
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