[NTG-context] Missing parinitskips in \normalizelinemode=0

[Hans Hagen]

On 10/19/2022 3:01 AM, Max Chernoff via ntg-context wrote:
> Hi Hans,
> 
> When running in \normalizelinemode=0, the \parinitleftskip and
> \parinitrightskip nodes are either nonexistant or invisible from Lua,
> causing tex.linebreak to not work correctly.
> 
> This sample file:
> 
>     \enabledirectives[system.callbacks.permitoverloads]
>     
>     \normalizelinemode=0
>     
>     \directlua{
>         callback.register("pre_linebreak_filter", function(head)
>             tex.preparelinebreak(head)
>             local list, info = tex.linebreak(head)
>             print(info)
>     
>             return head
>         end)
>     }
>     
>     \starttext
>        \input knuth
>     \stoptext
> 
> Produces this output:
> 
>     luatex warning  > linebreak: list seems already prepared
>     luatex warning  > linebreak: [ leftinit | rightinit | leftfill | rigthfill ] expected
>     nil
i'll bypass that warnign when the mode is zero

btw, you need to work with a copy of the list

Hans

-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
        tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-----------------------------------------------------------------