Wow, that's powerful! I'll add the wiki entries later tonight.
Thanks a lot! > On Aug 3, 2021, at 17:02, Hans Hagen <j.ha...@xs4all.nl> wrote: > > On 8/2/2021 8:54 PM, Benjamin Buchmuller via ntg-context wrote: >> That's great, I wikified a Note for testing if a buffer exists or has >> content (using the \getbuffer[…] approach for the moment). >> If I was asked, I'd opt for \doifelseemptybuffer (doifemptyelse?) since one >> could think of similar commands that test for empty "objects". >> Is there an option for testing blocks? (I actually use blocks quite >> frequently …) >> I just realized they are probably handled very differently during the >> typesetting. Basically I would just need to test if during the first run any >> of \beginBLOCK … \endBLOCK was invoked (but if one gets a test for some >> content in-between that's even better). >> As an alternative solution, is there a way to add content to buffers? >> Unfortunately, I can't use \getbuffer[first,second], but >> \startbuffer[first][add=yes] … \stopbuffer would be nice. > just for fun I made this: > > \starttext > > \startbuffer[test] > test > \stopbuffer > > \startbuffer[oeps] > oeps > \stopbuffer > > \typebuffer[test] \getbuffer[test] > > \startbuffer[test = * + test] > prepend > \stopbuffer > > \typebuffer[test] \getbuffer[test] > > \startbuffer[test = test + *] > append > \stopbuffer > > \typebuffer[test] \getbuffer[test] > > \startbuffer[test = * +++ test] > before > \stopbuffer > > \typebuffer[test] \getbuffer[test] > > \startbuffer[test = test +++ *] > after > \stopbuffer > > \typebuffer[test] \getbuffer[test] > > \startbuffer[test = * + oeps + test + oeps + * ] > DONE > \stopbuffer > > \typebuffer[test] \getbuffer[test] > > \stoptext > > which results in > > test > test > prependtest > prependtest > prependtestappend > prependtestappend > before > prependtestappend > before > prependtestappend > before > prependtestappend > after > before > prependtestappend > after > DONEoepsbefore > prependtestappend > afteroepsDONE > DONEoepsbefore > prependtestappend > afteroepsDONE > > so basically one can combine buffers any way > > + : nothing in between > ++ : space in between > +++ : empty line in between > > > ----------------------------------------------------------------- > Hans Hagen | PRAGMA ADE > Ridderstraat 27 | 8061 GH Hasselt | The Netherlands > tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl > ----------------------------------------------------------------- ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net ___________________________________________________________________________________
