Re: [NTG-context] Questions regarding \startexceptions and ligature prevention

-----Ursprüngliche Nachricht----- Von: Hans Hagen Gesendet: Montag, 22. März 2021 11:28 An: mailing list for ConTeXt users ; Maier, Denis Christian (UB) Betreff: Re: [NTG-context] Questions regarding \startexceptions and ligature prevention

On 3/22/2021 10:33 AM, denis.maier@ub.unibe.ch wrote:

...

Hi,

there's this rather new mechanism for preventing ligatures:

\startexceptions[de]

au{f-}{f}{ff}(f\zwnj f)asse

au{f-}{f}{ff}(f\zwnj f)asste

\stopexceptions

Two questions:

1. Can you have multiple \startexceptions[de] environments ? Will they accumulate ? (I'm thinking about preparing a general list of exceptions, but of course you will also want individual exceptions.)

you can find out by trying ...

Ok, it does...

...

2. What is the exact meaning of these four arguments ? {1}{2}{3} is clear, but what about the parentheses ? the lookup is using the third argument, the replacement is the fourth

auffasste => auf\zwnj fasste

when not hyphenated (without the () the third one is the replacement)

So, what's the advantage of using au{f-}{f}{ff}(f\zwnj f)as-ste over au{f-}{f}{ff}as-ste if any? Besides, is it intentional that this here will suppress the ff ligature? --------------------------------------------------------------- \enabletrackers[hyphenation.applied.visualize] \startexceptions[de] au{f-}{f}{ff}as-sen \stopexceptions \mainlanguage[de] \starttext auffassen \stoptext --------------------------------------------------------------- I don't see why that should happen here. Denis