Re: [NTG-context] problem with math: "\left" leads to "udefined symbol" --solved (sort of)

well after incrementally deleting most everything from my document I now seem to have a reproducible example:

8<--------------------------------------------
\definesynonyms[MySymbol][MySymbols][\meaning]
\MySymbol [whaever] {this} {  means }

\starttext
\startformula
x = \left ( 1 + 2 \right )
\stopformula
\stoptext
8<--------------------------------------------


the apparent "culprit" is the presence of the \definesynonyms' stuff. without it the rest (identical to your minimal example) compiles. with it it does not... remember that I am really unexperienced with context': at the time (2 years ago), when I first tried this, it worked. I now realize (after reading up on the definesynonyms' syntax again ...) that in the definition a _command_ has to go into the third bracket. seemingly at the time I was just putting a placeholder \meaning' there (never attempting to use it as a command acting on the explanatory text for that symbol definition but only wanting a glossary.


the strange thing (for me) is that this worked just fine two years ago, now it does produce a very strange error as described. question is why.

but replacing \meaning' by \infull' suffices to restore sane behaviour.


while I understand, that I did something stupid (putting a non-existent command \meaning' in the definition), I would have presumed that this might trigger an error at that place rather than making \left (' suddenly an undefined control sequence. any explanation what is going on here would be greatly appreciated.


On Tue, 24 Jan 2017 15:02:38 +0100, Hans Hagen <pra...@wxs.nl> wrote:


 this just works here ... so can others confirm it?
\starttext
\startformula
x =  \left ( 1 + 2 \right )
\stopformula
\stoptext



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