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job control for the es shell
A feature, which IMHO is badly missing form the es shell, is job control.
That's why I made a hack that implements it. If your are interested,
you can get it form:
http://theorie1.physik.uni-erlangen.de/rogalsky/es/es.html
Some Notes:
1) The patch makes use of the waitpid subroutine. Make sure, that your
C-library has the waitpid subroutine.
2) In contrast to the wait3 subroutine waitpid gives no information on
rusage. Therefore wait3 support is broken. You have to out comment
USE_WAIT3 in config.h manually. (It is possible to replace waitpid
with wait4, which gives rusage information. Unfortunately I don't
have wait4.)
3) A small modification to %interactive-loop is necessary. You can
change initial.es or supply your own %interactive-loop in .esrc.
Until I finish the development phase and switch to the maintain/
bugfixing phase I leave the initial.es untouched and put all job
control scripting into my .esrc. I included my .esrc in the source.
I also patched the LIBREADLINE support:
1) The saved history gets read in if you set $history. But this is
a hack and needs to be rewritten.
2) I fixed a memory leak: LIBREADLINE expects the input line buffers to
be freed by the application.
P.S.: Can anybody explain to me, what the Ref, RefPop, RefReturn etc
macros are for?
--
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I Dipl. Phys. Olaf Rogalsky Institut f. Theo. Physik I I
I Tel.: 09131 8528440 Univ. Erlangen-Nuernberg I
I Fax.: 09131 8528444 Staudtstrasse 7 B3 I
I rogalsky@theorie1.physik.uni-erlangen.de D-91058 Erlangen I
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