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 <adityam@umich.edu> 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
>
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