[NTG-context] ' undefined inside \startformula .. \stopformula

[Taco Hoekwater]

Hans Hagen wrote:
>>
>>This is a typo in math-pln.tex. The end of the file should be
>>
>>\bgroup
>>     \catcode`\_ = 13
>>     \catcode`\' = 13
>>     \doglobal\appendtoks
>>         \let_\activemathunderscore
>>         \let'\activemathquote
>>     \to \everymathematics %<--- was \everymath
>>\egroup
>>  
> 
> ok, fixed ... the _ thing is kind of weird and taco and i could not cook 
> up a reason why plain does/needs that ; the ' (prime) is needed
> 
> this trickery is related to a change in the catcode management of 
> context (which interferes with some plain tex left-overs)

Hans has uploaded a new version, with fix (context 2006.12.27).

Best, Taco