/* Lisp parsing and input streams.
Copyright (C) 1985, 1986, 1987, 1988, 1989, 1993, 1994, 1995,
1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
- 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+ 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
This file is part of GNU Emacs.
-GNU Emacs is free software; you can redistribute it and/or modify
+GNU Emacs 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 3, or (at your option)
-any later version.
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
-along with GNU Emacs; see the file COPYING. If not, write to
-the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-Boston, MA 02110-1301, USA. */
+along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
#include <config.h>
Lisp_Object prompt, inherit_input_method, seconds;
{
Lisp_Object val;
- int c;
if (! NILP (prompt))
message_with_string ("%s", prompt, 0);
val = read_filtered_event (1, 1, 1, ! NILP (inherit_input_method), seconds);
- c = XINT (val);
- return make_number (char_resolve_modifier_mask (c));
+
+ return (NILP (val) ? Qnil
+ : make_number (char_resolve_modifier_mask (XINT (val))));
}
DEFUN ("read-event", Fread_event, Sread_event, 0, 3, 0,
Lisp_Object prompt, inherit_input_method, seconds;
{
Lisp_Object val;
- int c;
if (! NILP (prompt))
message_with_string ("%s", prompt, 0);
+
val = read_filtered_event (1, 1, 0, ! NILP (inherit_input_method), seconds);
- c = XINT (val);
- return make_number (char_resolve_modifier_mask (c));
+
+ return (NILP (val) ? Qnil
+ : make_number (char_resolve_modifier_mask (XINT (val))));
}
DEFUN ("get-file-char", Fget_file_char, Sget_file_char, 0, 0, 0,
2000-09-21: It's not possible to just check for the file loaded
being a member of Vloads_in_progress. This fails because of the
way the byte compiler currently works; `provide's are not
- evaluted, see font-lock.el/jit-lock.el as an example. This
+ evaluated, see font-lock.el/jit-lock.el as an example. This
leads to a certain amount of ``normal'' recursion.
Also, just loading a file recursively is not always an error in
int count = 0;
Lisp_Object tem;
for (tem = Vloads_in_progress; CONSP (tem); tem = XCDR (tem))
- if (!NILP (Fequal (found, XCAR (tem))))
- count++;
- if (count > 3)
- {
- if (fd >= 0)
- emacs_close (fd);
- signal_error ("Recursive load", Fcons (found, Vloads_in_progress));
- }
+ if (!NILP (Fequal (found, XCAR (tem))) && (++count > 3))
+ {
+ if (fd >= 0)
+ emacs_close (fd);
+ signal_error ("Recursive load", Fcons (found, Vloads_in_progress));
+ }
record_unwind_protect (record_load_unwind, Vloads_in_progress);
Vloads_in_progress = Fcons (found, Vloads_in_progress);
}
UNGCPRO;
- if (saved_doc_string)
- free (saved_doc_string);
+ xfree (saved_doc_string);
saved_doc_string = 0;
saved_doc_string_size = 0;
- if (prev_saved_doc_string)
- xfree (prev_saved_doc_string);
+ xfree (prev_saved_doc_string);
prev_saved_doc_string = 0;
prev_saved_doc_string_size = 0;
register const unsigned char *s = SDATA (pathname);
return (IS_DIRECTORY_SEP (s[0])
|| (SCHARS (pathname) > 2
- && IS_DEVICE_SEP (s[1]) && IS_DIRECTORY_SEP (s[2]))
-#ifdef VMS
- || index (s, ':')
-#endif /* VMS */
- );
+ && IS_DEVICE_SEP (s[1]) && IS_DIRECTORY_SEP (s[2])));
}
DEFUN ("locate-file-internal", Flocate_file_internal, Slocate_file_internal, 2, 4, 0,
specbind (Qeval_buffer_list, Fcons (buf, Veval_buffer_list));
specbind (Qstandard_output, tem);
record_unwind_protect (save_excursion_restore, save_excursion_save ());
- BUF_SET_PT (XBUFFER (buf), BUF_BEGV (XBUFFER (buf)));
+ BUF_TEMP_SET_PT (XBUFFER (buf), BUF_BEGV (XBUFFER (buf)));
readevalloop (buf, 0, filename, Feval,
!NILP (printflag), unibyte, Qnil, Qnil, Qnil);
unbind_to (count, Qnil);
{
register int c = READCHAR;
/* \u allows up to four hex digits, \U up to eight. Default to the
- behaviour for \u, and change this value in the case that \U is seen. */
+ behavior for \u, and change this value in the case that \U is seen. */
int unicode_hex_count = 4;
switch (c)
/* A Unicode escape. We only permit them in strings and characters,
not arbitrarily in the source code, as in some other languages. */
{
- int i = 0;
+ unsigned int i = 0;
int count = 0;
while (++count <= unicode_hex_count)
break;
}
}
-
+ if (i > 0x10FFFF)
+ error ("Non-Unicode character: 0x%x", i);
return i;
}
}
/* Feval doesn't get called from here, so no gc protection is needed. */
-#define SUBSTITUTE(get_val, set_val) \
-{ \
- Lisp_Object old_value = get_val; \
- Lisp_Object true_value \
- = substitute_object_recurse (object, placeholder,\
- old_value); \
- \
- if (!EQ (old_value, true_value)) \
- { \
- set_val; \
- } \
-}
+#define SUBSTITUTE(get_val, set_val) \
+ do { \
+ Lisp_Object old_value = get_val; \
+ Lisp_Object true_value \
+ = substitute_object_recurse (object, placeholder, \
+ old_value); \
+ \
+ if (!EQ (old_value, true_value)) \
+ { \
+ set_val; \
+ } \
+ } while (0)
static Lisp_Object
substitute_object_recurse (object, placeholder, subtree)
{
case Lisp_Vectorlike:
{
- int i;
- int length = XINT (Flength(subtree));
+ int i, length = 0;
+ if (BOOL_VECTOR_P (subtree))
+ return subtree; /* No sub-objects anyway. */
+ else if (CHAR_TABLE_P (subtree) || SUB_CHAR_TABLE_P (subtree)
+ || COMPILEDP (subtree))
+ length = ASIZE (subtree) & PSEUDOVECTOR_SIZE_MASK;
+ else if (VECTORP (subtree))
+ length = ASIZE (subtree);
+ else
+ /* An unknown pseudovector may contain non-Lisp fields, so we
+ can't just blindly traverse all its fields. We used to call
+ `Flength' which signaled `sequencep', so I just preserved this
+ behavior. */
+ wrong_type_argument (Qsequencep, subtree);
+
for (i = 0; i < length; i++)
- {
- Lisp_Object idx = make_number (i);
- SUBSTITUTE (Faref (subtree, idx),
- Faset (subtree, idx, true_value));
- }
+ SUBSTITUTE (AREF (subtree, i),
+ ASET (subtree, i, true_value));
return subtree;
}
case Lisp_Cons:
{
- SUBSTITUTE (Fcar_safe (subtree),
- Fsetcar (subtree, true_value));
- SUBSTITUTE (Fcdr_safe (subtree),
- Fsetcdr (subtree, true_value));
+ SUBSTITUTE (XCAR (subtree),
+ XSETCAR (subtree, true_value));
+ SUBSTITUTE (XCDR (subtree),
+ XSETCDR (subtree, true_value));
return subtree;
}
}
/* This is sometimes needed in the middle of GC. */
obsize &= ~ARRAY_MARK_FLAG;
- /* Combining next two lines breaks VMS C 2.3. */
- hash = hash_string (ptr, size_byte);
- hash %= obsize;
+ hash = hash_string (ptr, size_byte) % obsize;
bucket = XVECTOR (obarray)->contents[hash];
oblookup_last_bucket_number = hash;
if (EQ (bucket, make_number (0)))
}
#endif
-#if (!(defined(WINDOWSNT) || (defined(HAVE_CARBON))))
+#if (!(defined(WINDOWSNT) || (defined(HAVE_NS))))
/* When Emacs is invoked over network shares on NT, PATH_LOADSEARCH is
almost never correct, thereby causing a warning to be printed out that
confuses users. Since PATH_LOADSEARCH is always overridden by the
- EMACSLOADPATH environment variable below, disable the warning on NT.
- Also, when using the "self-contained" option for Carbon Emacs for MacOSX,
- the "standard" paths may not exist and would be overridden by
- EMACSLOADPATH as on NT. Since this depends on how the executable
- was build and packaged, turn off the warnings in general */
+ EMACSLOADPATH environment variable below, disable the warning on NT. */
/* Warn if dirs in the *standard* path don't exist. */
if (!turn_off_warning)
}
}
}
-#endif /* !(WINDOWSNT || HAVE_CARBON) */
+#endif /* !(WINDOWSNT || HAVE_NS) */
/* If the EMACSLOADPATH environment variable is set, use its value.
This doesn't apply if we're dumping. */
HCoop / bpt / emacs.git / blobdiff