[NTG-context] em-dash ligature is converted to en-dash in the generic fontloader

Ulrike Fischer news3 at nililand.de
Fri Mar 1 13:15:42 CET 2019

Am Fri, 1 Mar 2019 11:17:56 +0100 schrieb Hans Hagen:

>  it looks ok in context 

You need to set automatichyphenmode=0 to see the problem in context:
the handling of the --- ligature is clearly broken in some cases:

A---B A --- B

> Hm, I don't see those lines here 

I see 

 local tail = getprev(stop) 

in line 844 of font-ots.lua in a just updated context minimals. 

If I change this to 

 local tail = stop

as suggested by Marcel and rebuild the formats, the ligature behaves

> (and definitely not in the tex live code freeze window)

TeXLive is frozen and pretest has begun, so I don't see a danger to
apply patches now. 

Ulrike Fischer 

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