15 Dec
2012
15 Dec
'12
11:40 a.m.
···
\begingroup \grabbufferdata[simplesteps][startframe][stopframe]% }
With the \grabbufferdata command the content beginning from \startframe until \stopframe is stored in a buffer with the name “simplesteps”.
(1) What does the \begingroup do? I could not find a \endgroup in the patch, nor in the module code.
It’s in the definition of \buff_stop in buff-ini.mkiv. The first thing \startbuffer does is to insert a bgroup, too. Philipp