Mercurial > hg > xemacs-beta
comparison lisp/cl-macs.el @ 1123:37bdd24225ef
[xemacs-hg @ 2002-11-27 07:15:02 by ben]
bug fixes, profiling debugging improvements
configure.in: Check for GCC version and only use -Wpacked in v3.
.cvsignore: Add .idb, .ilk for MS Windows VC++.
cl-macs.el: Document better.
cmdloop.el: Removed.
Remove nonworking breakpoint-on-error now that debug-on-error
works as documented.
help.el: Extract out with-displaying-help-buffer into a more general
mechanism.
lib-complete.el: Support thunks in find-library-source-path.
startup.el: Don't catch errors when noninteractive, because that makes
stack traces from stack-trace-on-error useless.
.cvsignore: Windows shit.
alloc.c: Better redisplay-related assert.
elhash.c: Comment change.
eval.c: Don't generate large warning strings (e.g. backtraces) when they will
be discarded.
Implement debug-on-error as documented -- it will enter the
debugger and crash when an uncaught signal happens noninteractively
and we are --debug.
Better redisplay-related asserts.
frame-msw.c, frame.c, lisp.h, redisplay.c, scrollbar-gtk.c, scrollbar-x.c, signal.c, sysdep.c: Fix up documentation related to QUIT (which CANNOT garbage-collect
under any circumstances), and to redisplay critical sections.
lread.c: Add load-ignore-out-of-date-elc-files,
load-always-display-messages, load-show-full-path-in-messages for
more robust package compilation and debugging.
profile.c: Overhaul profile code. Change format to include call count and be
extensible for further info. Remove call-count-profile-table.
Add set-profiling-info. See related profile.el changes (which
SHOULD ABSOLUTELY be in the core! Get rid of xemacs-devel and
xemacs-base packages *yesterday*!).
| author | ben |
|---|---|
| date | Wed, 27 Nov 2002 07:15:36 +0000 |
| parents | 79c6ff3eef26 |
| children | 01c57eb70ae9 |
comparison
equal
deleted
inserted
replaced
| 1122:7abc2b15a990 | 1123:37bdd24225ef |
|---|---|
| 738 | 738 |
| 739 \(loop for (x y) on plist by #'cddr do ...) | 739 \(loop for (x y) on plist by #'cddr do ...) |
| 740 | 740 |
| 741 Destructuring is forgiving in that mismatches in the number of elements on | 741 Destructuring is forgiving in that mismatches in the number of elements on |
| 742 either size will be handled gracefully, either by ignoring or initializing | 742 either size will be handled gracefully, either by ignoring or initializing |
| 743 to nil. | 743 to nil. Destructuring is extremely powerful, and is probably the single |
| 744 most useful feature of `loop'. | |
| 745 | |
| 746 Other useful features of loops are iterating over hash-tables, collecting values into lists, and being able to modify lists in-place as you iterate over them. As an example of the first two, | |
| 747 | |
| 748 \(loop for x being the hash-key in table using (hash-value y) | |
| 749 collect (cons x y)) | |
| 750 | |
| 751 converts hash-table TABLE to an alist. (What `collect' actually does is | |
| 752 push its value onto the end of an internal list and establish this list as | |
| 753 the default return value of the loop. See below for more information.) | |
| 754 | |
| 755 An example of in-place modification is | |
| 756 | |
| 757 \(setq foo '(1 3 5)) | |
| 758 \(loop for x in-ref foo do | |
| 759 (setf x (* x x))) | |
| 760 | |
| 761 after which foo will contain '(1 9 25). | |
| 744 | 762 |
| 745 If you don't understand how a particular loop clause works, create an | 763 If you don't understand how a particular loop clause works, create an |
| 746 example and use `macroexpand-sexp' to expand the macro. | 764 example and use `macroexpand-sexp' to expand the macro. |
| 747 | 765 |
| 748 Valid clauses are: | 766 Valid clauses are: |