I updated this wiki page:
https://cwiki.apache.org/confluence/display/DAFFODIL/Unparsing%3A+Data+Output+Stream+Buffering+and+dfdl%3AoutputValueCalc To be a bit of an intro to unparsing, followed by the discussion of the buffer splitting/collapsing algorithm as before, though explaining how it works (in my branch to be merged soon), rather than as analysis of a bug behavior (which I have fixed). Comments, improvements, questions, are always welcome.
