[lltx] [luatex] paragraph breaking in lua (node-ltp)

[Hans Hagen]

On 9/25/2014 9:39 AM, Taco Hoekwater wrote:
> Hi,
>
> On 25 Sep 2014, at 08:58, Élie Roux <elie.roux at telecom-bretagne.eu> wrote:
>>
>>> I recently learned that Taco (I think) did a full reimplementation in
>>> lua that would be perfect for me to do a few experiments.
>>>
>>> Unfortunately I'm unable to to make this work e.g., produce a short TeX
>>> file that actually uses the code. Anybody out there who could give a
>>> helping hand?
>>
>> The best would certainly be to make a short plain TeX example using the
>> raw file, and start to work on the bugs, maybe Taco and Hans would be
>> ready to help?
>
> The node-ltp.lua file in ConTeXt has this alternative paragraph breaker in lua.
>
> The code in there was originally written by me, but then modified quite a bit
> by Hans: he adapted it for use in ConTeXt as well as improved the structure
> to make better advantage of the lua programming language. As I wrote on
> SX, use within ConTeXt should be simple:
>
>    \startparbuilder[basic]
>    This is a sample paragraph ....
>    \stopparbuilder
>
> but the code is bit outdated (has bugs right now). It is connected to ConTeXt,
> but mostly in the diagnostics code, not in its code functionality. Whether Hans
> wants to create an agnostic version, I do not know, but it would not hurt to ask.

the two bugs are (were) in old-school tracing which is what i never use

the par builder code is pretty compatible (although it gives on purpose 
different but consistent results with hz .. the new hz code was 
prototyped this way) .. i still need to find a real application for it

fyi: the code is already kind of old and evolves stepwise into a 
pluggable framework (i reported on this several times in articles and 
status documents)

Hans


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