[Octave-patch-tracker] [patch #8033] Implement missing function evalc()

[John W. Eaton]

Follow-up Comment #2, patch #8033 (project octave):

You have an unwind_protect frame in Fevalc to protect the
buffer_error_messages variable.  Shouldn't you also use it to protect the
pager_stream evalc mode?

Fevalc needs a doc string, and needs to be added to the manual.

Is there some more general concept that we can capture in the pager instead of
just "evalc mode"?

Does this approach for implementing evalc work if the pager is not enabled? 
What about for output that doesn't go through the pager at all?  For example,
what happens if someone uses "system" to run a program inside a .m file, or a
DEFUN function that writes directly to std::cout?


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