[NTG-context] mode dependend character handling

[Hans Hagen]

Henning Hraban Ramm wrote:

> Sorry for answering that late.
>
>> The correct way would be to define swiss as a language, because
>> then you can put a suitable redefinition inside the language
>> specifics, but the following hack will work as well and is a lot
>> faster to implement (please don't tell anyone I proposed this):
>>
>>   \enableregime[il1]
>>   \let\normalssharp\ssharp
>>   \def\ssharp{\doifmodeelse{swiss}{ss}{\normalssharp}}
>
>
> Thank you, that works and is just the right solution for my problem.
>
> Mojca's proposal:
>
>> \startmode[swiss]
>> \definecharacter ssharp {ss}
>> \stopmode
>
>
> unfortunately doesn't work, at least not with utf regime and ec  
> encoding.

\startmode[*de]
  ...

languages have system modes (star prefix in order to prevent clashes 
with user modes)

Hans