On Sun, 5 Jun 2016, Wolfgang Schuster wrote:

...

Aditya Mahajan mailto:adityam@umich.edu 5. Juni 2016 um 00:32 Hi,

I discovered this bug while answering a question on TeX.SX. Consider:

\define\cyrdash{\dontleavehmode\scale[sx=0.80]{---}} \unprotect \setuplanguage [\s!ru] [ \c!midsentence=\cyrdash, \c!leftsentence=\cyrdash, \c!rightsentence=\cyrdash, ] \protect

\setupbodyfont[dejavu]

\starttext Normal text|<|English

\mainlanguage[ru] Normal text|<|Russian \stoptext

The pdf shows:

Normal text—English Normal text„Russian

Why the quote instead of the emdash. The output is okay is if \mainlanguage is set before |<| is used for the first time. When subsentences are nested the inner group uses the leftsubsentence and rightsubsentence symbols.

\mainlanguage[ru]

\starttext outer|<|inner|<|nested|>|inner|>|outer \stoptext

Ah, thanks! Aditya