I’ve tried context.processbuffer but I am afraid it’s not what I am after, most probably I have not phrased clearly my question.

What I am looking for is roughly what’s described in Taco’s presentation https://meeting.contextgarden.net/2014/talks/2014-09-12-taco-luatex/luatextalk.pdf

A way to decompose some input into tokens which represent either normal text, csnames etc…  I had a try to this token library in LuaTeX but I could not find examples of how to use it. I suspect that buffers mechanism use it somehow.

Thanks

De : Hans Hagen
Envoyé le :lundi 26 novembre 2018 18:55
À : mailing list for ConTeXt users; Joseph Canedo
Objet :Re: [NTG-context] Grammar to parse TeX input?

On 11/26/2018 3:19 PM, Joseph Canedo wrote:

> \startluacode

>

> function zzz_function(text)

>

> - How to process ‘text’ to get bits which are macros, groups etc… ?

> Eventually expanded ?

>

> end

>

> \stopluacode

>

> \definebuffer[ZZZBuffer]

>

> \def\StartZZZ{\grabbufferdata[ZZZBuffer][StartZZZ][StopZZZ]}

>

> \def\StopZZZ{\ctxlua{zzz_function(buffers.getcontent('ZZZBuffer'))}}

>

> \StartZZZ

>

> \input knuth

>

> \StopZZZ

context.processbuffer { "ZZZBuffer" }

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