manual hyphenation LMTX

manual hyphenation LMTX

[jbf via ntg-context]

I may have seen a response to this at some stage in the list, but I 
cannot find it.

\- works for manual hyphenation in Mkiv but not (for me at least) in LMTX.

My general setting  is \setupalign [hz, 
nothyphenated,stretched,verytolerant] because I am typesetting a book 
for visually-impaired readers using Atkinson Hyperlegible, especially 
developed by the Braille Foundation. In general, hyphenation is not 
recommended for the visually-impaired, but just occasionally it becomes 
necessary.

Is there a reason for LMTX is not accepting \- or is there another way 
to achieve it in LMTX?

Julian

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Re: manual hyphenation LMTX

[Hans Hagen via ntg-context]

On 9/28/2021 2:57 AM, jbf via ntg-context wrote:
> I may have seen a response to this at some stage in the list, but I 
> cannot find it.
> 
> \- works for manual hyphenation in Mkiv but not (for me at least) in LMTX.
> 
> My general setting  is \setupalign [hz, 
> nothyphenated,stretched,verytolerant] because I am typesetting a book 
> for visually-impaired readers using Atkinson Hyperlegible, especially 
> developed by the Braille Foundation. In general, hyphenation is not 
> recommended for the visually-impaired, but just occasionally it becomes 
> necessary.
> 
> Is there a reason for LMTX is not accepting \- or is there another way 
> to achieve it in LMTX?

just a side effect of more control (in the engine) and therefore also in 
lmtx

we can do something like this:

\unprotect

\def\v!explicit{explicit}

\permanent\protected\def\doexplicithyphens{\hyphenationmode\bitwiseflip\hyphenationmode 
\explicithyphenationcode}
\permanent\protected\def\noexplicithyphens{\hyphenationmode\bitwiseflip\hyphenationmode-\explicithyphenationcode}

\defcsname\??aligncommand\v!explicit\endcsname{\toksapp\t_spac_align_collected{\nohyphens\doexplicithyphens}}

\protect

\starttext

{ \setupalign [hz,nothyphenated,stretched,verytolerant] 
\dorecurse{100}{test\-}test \par }

{ \setupalign [hz,explicit,stretched,verytolerant] 
\dorecurse{100}{test\-}test \par }

\stoptext

if we can agree on the keyword ...

Hans

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