Mercurial > hg > xemacs-beta
annotate lib-src/digest-doc.c @ 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 | ed624ab64583 |
| children | 061f4f90f874 |
| rev | line source |
|---|---|
| 428 | 1 /* Give this program DOCSTR.mm.nn as standard input |
| 2 and it outputs to standard output | |
| 3 a file of nroff output containing the doc strings. | |
| 4 | |
| 5 See also sorted-doc.c, which produces similar output | |
| 6 but in texinfo format and sorted by function/variable name. */ | |
| 7 | |
| 5091 | 8 #ifdef HAVE_CONFIG_H |
| 438 | 9 #include <config.h> |
| 428 | 10 #endif |
| 11 #include <stdio.h> | |
| 12 | |
| 13 int | |
| 2367 | 14 main (int argc, char **argv) |
| 428 | 15 { |
| 16 register int ch; | |
| 17 register int notfirst = 0; | |
| 18 | |
| 19 printf (".TL\n"); | |
| 613 | 20 printf ("Command Summary for XEmacs\n"); |
| 21 printf (".AU\nThe XEmacs Advocacy Group\n"); | |
| 428 | 22 while ((ch = getchar ()) != EOF) |
| 23 { | |
| 24 if (ch == '\037') | |
| 25 { | |
| 26 if (notfirst) | |
| 27 printf ("\n.DE"); | |
| 28 else | |
| 29 notfirst = 1; | |
| 30 | |
| 31 printf ("\n.SH\n"); | |
| 32 | |
| 33 ch = getchar (); | |
| 34 printf (ch == 'F' ? "Function " : "Variable "); | |
| 35 | |
| 36 while ((ch = getchar ()) != '\n') /* Changed this line */ | |
| 37 { | |
| 38 if (ch != EOF) | |
| 39 putchar (ch); | |
| 40 else | |
| 41 { | |
| 42 ungetc (ch, stdin); | |
| 43 break; | |
| 44 } | |
| 45 } | |
| 46 printf ("\n.DS L\n"); | |
| 47 } | |
| 48 else | |
| 49 putchar (ch); | |
| 50 } | |
| 51 return 0; | |
| 52 } |