March 2000 - XEmacs-Beta - XEmacs Mailing List Archives

Re: Intent to rename source files implementing lisp objects 25 years, 1 month

SL Baur

Martin Buchholz <martin(a)xemacs.org> writes in xemacs-beta(a)xemacs.org: ... > Because of this unavoidable discontinuity, I think the best solution > will be to start a fresh CVS module for continued development. Unfortunately, I agree. I would suggest waiting until we are ready to release 21.2 before doing it though.

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Re: A real database for Emacs 25 years, 1 month

SL Baur

Jan Vroonhof <vroonhof(a)math.ethz.ch> writes in xemacs-beta(a)xemacs.org: ... > 3. The harlequin M-BS xanalysis common lisp SQL bindings allow > iterating over the result of a query using map- and do- like > functions. IIRC they do this not by downloading all the results but > by transparently creating a database cursor[1] for you. That would > be very cool. No problem. I've attached a manual session illustrating cursor usage. ;; I posted the source to `pg-util-query-results' yesterday. It is ;; written in Lisp and iterates over all returned tuples and fields. (setq P (pq-connectdb "dbname=japanese port=25432")) #<PGconn localhost:25432 steve/japanese> (pq-set-client-encoding P "MULE_INTERNAL") 0 (require 'pg-util) pg-util (let (R result) (pq-exec P "BEGIN;") (setq R (pq-exec P "DECLARE a_cursor CURSOR FOR SELECT * FROM kanji WHERE index < 5 ORDER BY index;")) (when (eq (pq-result-status R) 'pgres::command-ok) (setq R (pq-exec P "FETCH a_cursor;")) (while (and (eq (pq-result-status R) 'pgres::tuples-ok) (= (pq-ntuples R) 1)) (push (pg-util-query-results R) result) (setq R (pq-exec P "FETCH a_cursor;")))) (pq-exec P "END;") result) ((("kanji" "index" "nelson" "strokes" "meaning" "mnemonic" "radical") ("円" "4" "385" "4" "round, yen" "round coins from bank-teller's window" "")) (("kanji" "index" "nelson" "strokes" "meaning" "mnemonic" "radical") ("雨" "3" "6518" "8" "rain" "rain from heavenly clouds" "")) (("kanji" "index" "nelson" "strokes" "meaning" "mnemonic" "radical") ("右" "2" "700" "5" "right" "right hand to the mouth" "")) (("kanji" "index" "nelson" "strokes" "meaning" "mnemonic" "radical") ("一" "1" "1" "1" "one" "one finger" "")))

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Re: A real database for Emacs 25 years, 1 month

SL Baur

Hrvoje Niksic <hniksic(a)iskon.hr> writes in xemacs-beta(a)xemacs.org: > SL Baur <steve(a)beopen.com> writes: >> (setq R (pq-exec P "This is a bad query;")) >> #<PGresult PGRES_FATAL_ERROR - > > This should signal a real error. We've got an error system; let's > use it. O.K. > The PostgreSQL error object should be encapsulated within the error > data, so that a handler can use it. There is no real error object. There is an errno-like string area set aside in the PGconn object for the most recent backend error message.[1] It is not guaranteed to work, for various reasons. Footnotes: [1] Comments in the source indicate that the programmers are aware that this is perhaps not the best mechanism in the world.

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Re: A real database for Emacs 25 years, 1 month

SL Baur

Vin Shelton <acs(a)xemacs.org> writes in xemacs-beta(a)xemacs.org: > I think this was a proof of concept, designed to stimulate > discussion. Correct. > Steve doesn't expect me to apply this patch to the stable release. Correct.

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Re: Intent to rename source files implementing lisp objects 25 years, 1 month

Vin Shelton

Please don't move or rename (or even copy) the files. We all have our threshold of cleanliness, but I think this would be going too far, Martin. There is no compelling reason to make this change, and the potential for confusion and damage is not negligible. Please leave the files named the way they are. - vin

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pdump vs. temacs -batch -l ../lisp/loadup.el run-temacs -q 25 years, 1 month

Martin Buchholz

Not quite working yet. latest CVS: (martin＠polgar) /usr/local/x/build/upps/src $ make temacs /home/martin/SUNWspro/bin/cc -v -g -z ignore -L/usr/local/lib -xildoff -L/usr/ccs/lib -R/usr/dt/lib -L/usr/dt/lib -L/usr/X11R6.4/lib -o temacs abbrev.o alloc.o blocktype.o buffer.o bytecode.o callint.o callproc.o casefiddle.o casetab.o chartab.o cmdloop.o cmds.o console.o console-stream.o data.o device.o dired.o doc.o doprnt.o dynarr.o editfns.o elhash.o emacs.o eval.o events.o debug.o tests.o unexsol2-6.o tooltalk.o dgif_lib.o gif_io.o menubar.o scrollbar.o dialog.o toolbar.o menubar-x.o scrollbar-x.o dialog-x.o toolbar-x.o gui-x.o realpath.o getloadavg.o sunplay.o console-tty.o device-tty.o event-tty.o frame-tty.o objects-tty.o redisplay-tty.o cm.o terminfo.o event-unixoid.o database.o sysdll.o emodules.o process-unix.o event-stream.o extents.o faces.o fileio.o filemode.o floatfns.o fns.o font-lock.o frame.o general.o glyphs.o glyphs-eimage.o glyphs-widget.o gui.o gutter.o hash.o imgproc.o indent.o insdel.o intl.o keymap.o line-number.o lread.o lstream.o macros.o marker.o md5.o minibuf.o objects.o opaque.o print.o process.o profile.o rangetab.o redisplay.o redisplay-output.o regex.o search.o select.o signal.o sound.o specifier.o strftime.o symbols.o syntax.o sysdep.o undo.o balloon_help.o balloon-x.o console-x.o device-x.o event-Xt.o frame-x.o glyphs-x.o objects-x.o redisplay-x.o select-x.o xgccache.o widget.o window.o lastfile.o ralloc.o EmacsFrame.o EmacsShell.o TopLevelEmacsShell.o TransientEmacsShell.o EmacsManager.o ../lwlib/liblw.a -lXaw -ltiff -lpng -ljpeg -lz -lcompface -lXpm -ltt -lXmu -lXt -lXext -lX11 -lSM -lICE -ldl -lcurses /usr/demo/SOUND/lib/libaudio.a -lkvm -lkstat -lm -lsocket -lnsl -lelf -lgen -ldl (martin＠polgar) /usr/local/x/build/upps/src $ dbx temacs dbx> run-temacs Running: temacs -batch -l ../lisp/loadup.el run-temacs -q (process id 4440) Loading ../lisp/loadup.el... Using load-path (/usr/local/x/build/upps/lisp) Using module-load-path (/usr/local/x/build/upps/modules) Loading very-early-lisp... Loading /usr/local/x/build/upps/lisp/dumped-lisp.el... ,,, Loading /usr/local/x/build/upps/lisp/loaddefs.elc... Loading site-load... Finding pointers to doc strings... Finding pointers to doc strings...done Bootstrapping from temacs... Initialization error: Attempt to delete the only frame

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Re: A real database for Emacs 25 years, 1 month

Vin Shelton

I think this was a proof of concept, designed to stimulate discussion. Steve doesn't expect me to apply this patch to the stable release. - vin >>>>> On 06 Mar 2000, Jan Vroonhof <vroonhof(a)math.ethz.ch> said: Jan> SL Baur <steve(a)beopen.com> writes: >> Attached are patches to XEmacs 21.1.10 to add runtime support for the >> PostgreSQL relational database. Jan> Did mean for this to go to -patches? Or did you send it here Jan> because it still preliminary..

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Fix pdump problems. 25 years, 1 month

Andy Piper

I committed this by accident, but I think its sane. I hope the patch is ... 2000-03-06 Andy Piper <andy(a)xemacs.org> * frame.c (Fmake_frame): init gutters later. This makes pdump happy. * gmalloc.c: fix HEAP_IN_DATA + PDUMP definitions. * Makefile.in.in: ditto. * emacs.c: ditto. * mem-limits.h: ditto. * nt.c: ditto. * configure.in: ditto. -------------------------------------------------------------- Dr Andy Piper Senior Consultant Architect, BEA Systems Ltd

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Re: Intent to rename source files implementing lisp objects 25 years, 1 month

Tor Arntsen

On Mar 6, 4:04, SL Baur wrote: >Andreas Jaeger <aj(a)suse.de> writes in xemacs-beta(a)xemacs.org: > >> You should be able to move the file in the repository itself. This >> keeps the history. > >Except that you will lose the ability to check out previous versions. I missed the start of the thread, so I'm not sure what it's exactly about, but as far as moving a file in the repository is concerned Steve is right. Not being able to check out previous versions defies the whole purpose of version control. And, in addition, everybody who had the file checked out in its original incarnation will run into a CVS error the next time they do a cvs update. CVS will abort because there's an entry in people's CVS/Entries file that doesn't exist in the repository. They will have to manually edit their CVS/Entries files. This includes everybody out there who checked out the repository anonymously as well. If you want to do this you should copy, not move, the file in the repository. Then you can rm the original file in your working tree and cvs remove it in the usual way. You will still have an anomaly in that 'cvs log' and 'cvs status -v' on the (new) file will indicate that the file has a history under its new name, which is not true. It will also be checked out if you try to check out an old version, this can create trouble or at least make it a bit messy. To avoid this you should use 'cvs admin' to delete all symbolic tags for the renamed/moved file. You will still have the history but not the tags, which may or may not make the history less useful. If you don't do this then you're changing the history.. -Tor

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Re: A real database for Emacs 25 years, 1 month

Hrvoje Niksic

SL Baur <steve(a)beopen.com> writes: > (setq R (pq-exec P "This is a bad query;")) > #<PGresult PGRES_FATAL_ERROR - > This should signal a real error. We've got an error system; let's use it. The PostgreSQL error object should be encapsulated within the error data, so that a handler can use it. > DEFUN ("pq-finish", Fpq_finish, 1, 1, 0, /* > Close the connection to the backend. > Note: This entry point is provided for completeness, but its use is not > recommended. The preferred way to delete connections is to let the Emacs > garbage collection mechanism do it. I agree with Jan about this. GC is there to manage memory; programmers who rely on GC to clean up all the resources could be called lazy at best.

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XEmacs-Beta March 2000