Mercurial > hg > xemacs-beta
view lib-src/ad2c @ 5241:d579d76f3dcc
Be more careful about side-effects from Lisp code, #'reduce
src/ChangeLog addition:
2010-07-24 Aidan Kehoe <kehoea@parhasard.net>
* lisp.h (PARSE_KEYWORDS):
Always accept a nil :allow-other-keys keyword argument, as
described in the ALLOW-OTHER-KEYS-NIL Common Lisp issue writeup,
and as necessary for Paul Dietz' tests for #'reduce.
* fns.c (mapping_interaction_error): New.
(Freduce): Call mapping_interaction_error when KEY or FUNCTION
have modified a string SEQUENCE such that the byte length of the
string has changed, or such that the current cursor pointer
doesn't point to the beginning of a character.
Cf. the MAPPING-DESTRUCTIVE-INTERACTION Common Lisp issue
writeup.
When traversing a list, GCPRO the part of it we still have to
traverse, to avoid any crashes if FUNCTION or KEY amputate it
behind us and force a garbage collection.
tests/ChangeLog addition:
2010-07-24 Aidan Kehoe <kehoea@parhasard.net>
* automated/lisp-tests.el:
Test a couple of things #'reduce was just made more careful
about.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Sat, 24 Jul 2010 15:56:57 +0100 |
| parents | ba07c880114a |
| children | cd167465bf69 061f4f90f874 |
line wrap: on
line source
#!/bin/sh # # ad2c : Convert app-defaults file to C strings decls. # # George Ferguson, ferguson@cs.rcohester.edu, 12 Nov 1990. # 19 Mar 1991 : gf # Made it self-contained. # 6 Jan 1992 : mycroft@gnu.ai.mit.edu (Charles Hannum) # Removed use of "-n" and ":read" label since Gnu and # IBM sed print pattern space on "n" command. Still works # with Sun sed, of course. # 7 Jan 1992: matthew@sunpix.East.Sun.COM (Matthew Stier) # Escape quotes after escaping backslashes. # # This file is part of XEmacs. # # XEmacs is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License as published by the # Free Software Foundation; either version 2, or (at your option) any # later version. # # XEmacs is distributed in the hope that it will be useful, but WITHOUT # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License # for more details. # # You should have received a copy of the GNU General Public License # along with XEmacs; see the file COPYING. If not, write to # the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, # Boston, MA 02110-1301, USA. */ # # Synched up with: Not in FSF. sed ' /^!/d /^$/d s/\\/\\\\/g s/\\$//g s/"/\\"/g s/^/"/ : test /\\$/b slash s/$/",/ p d : slash n /^!/d /^$/d s/"/\\"/g s/\\\\/\\/g s/\\n/\\\\n/g s/\\t/\\\\t/g s/\\f/\\\\f/g s/\\b/\\\\b/g b test' "$@"