* Improved Console/Scala plugin: more uniform scala.Console output,
more robust treatment of threads and interrupts.
This refers to Isabelle/477cd67f963f.
I have standardized Isabelle/Scala towards scala.Console, with
Output.writeln, Output.warning, Output.error_message using that as well.
The Scala interpreter runs on a thread-local redirection of this, to print
results in the jEdit/Console text window, instead of somewhere on
stdout/stderr (which might be actually /dev/null).
Thus it is already possible to work with isabelle.Build.build to produce
Isabelle documents in batch mode within Isabelle/jEdit, without using the
old-fashioned "isabelle scala" TTY loop. The latter is non-portable
across OS platforms, and many users don't even know how to open a
terminal.
Studying the Scala interpreter for several more hours, I did not get much
further, though. E.g. its completion mechanism is still unused by the
console plugin. These EPFL guys don't do the simplest possible
implementation by default -- it looks a bit convoluted.
Makarius
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