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.

--- a/tests/ChangeLog	Tue Jul 13 10:20:22 2010 +0200
+++ b/tests/ChangeLog	Sat Jul 24 15:56:57 2010 +0100
@@ -1,3 +1,9 @@
+2010-07-24  Aidan Kehoe  <kehoea@parhasard.net>
+
+	* automated/lisp-tests.el:
+	Test a couple of things #'reduce was just made more careful
+	about.
+
 2010-06-13  Stephen J. Turnbull  <stephen@xemacs.org>
 
 	* gtk/event-stream-tests.el: