/* Lisp object printing and output streams.
-Copyright (C) 1985-1986, 1988, 1993-1995, 1997-2011
+Copyright (C) 1985-1986, 1988, 1993-1995, 1997-2012
Free Software Foundation, Inc.
This file is part of GNU Emacs.
#endif
/* Avoid actual stack overflow in print. */
-static int print_depth;
+static ptrdiff_t print_depth;
/* Level of nesting inside outputting backquote in new style. */
-static int new_backquote_output;
+static ptrdiff_t new_backquote_output;
/* Detect most circularities to print finite output. */
#define PRINT_CIRCLE 200
N the object has been printed so we can refer to it as #N#.
print_number_index holds the largest N already used.
N has to be striclty larger than 0 since we need to distinguish -N. */
-static int print_number_index;
+static ptrdiff_t print_number_index;
static void print_interval (INTERVAL interval, Lisp_Object printcharfun);
/* GDB resets this to zero on W32 to disable OutputDebugString calls. */
int print_output_debug_flag EXTERNALLY_VISIBLE = 1;
\f
-/* Low level output routines for characters and strings */
+/* Low level output routines for characters and strings. */
/* Lisp functions to do output using a stream
must have the stream in a variable called printcharfun
and must start with PRINTPREPARE, end with PRINTFINISH,
and use PRINTDECLARE to declare common variables.
Use PRINTCHAR to output one character,
- or call strout to output a block of characters. */
+ or call strout to output a block of characters. */
#define PRINTDECLARE \
struct buffer *old = current_buffer; \
if (print_buffer_pos != print_buffer_pos_byte \
&& NILP (BVAR (current_buffer, enable_multibyte_characters))) \
{ \
- USE_SAFE_ALLOCA; \
- unsigned char *temp; \
- SAFE_ALLOCA (temp, unsigned char *, print_buffer_pos + 1); \
+ unsigned char *temp \
+ = (unsigned char *) alloca (print_buffer_pos + 1); \
copy_text ((unsigned char *) print_buffer, temp, \
print_buffer_pos_byte, 1, 0); \
insert_1_both ((char *) temp, print_buffer_pos, \
print_buffer_pos, 0, 1, 0); \
- SAFE_FREE (); \
} \
else \
insert_1_both (print_buffer, print_buffer_pos, \
printcharfun = Vprin1_to_string_buffer;
PRINTPREPARE;
print (object, printcharfun, NILP (noescape));
- /* Make Vprin1_to_string_buffer be the default buffer after PRINTFINSH */
+ /* Make Vprin1_to_string_buffer be the default buffer after PRINTFINISH */
PRINTFINISH;
}
to make it write to the debugging output. */)
(Lisp_Object character)
{
- CHECK_CHARACTER (character);
- putc ((int) XINT (character), stderr);
+ CHECK_NUMBER (character);
+ putc (XINT (character) & 0xFF, stderr);
#ifdef WINDOWSNT
/* Send the output to a debugger (nothing happens if there isn't one). */
{
Lisp_Object errname, errmsg, file_error, tail;
struct gcpro gcpro1;
- int i;
if (context != 0)
write_string_1 (context, -1, stream);
}
else
{
- Lisp_Object error_conditions;
+ Lisp_Object error_conditions = Fget (errname, Qerror_conditions);
errmsg = Fget (errname, Qerror_message);
- error_conditions = Fget (errname, Qerror_conditions);
file_error = Fmemq (Qfile_error, error_conditions);
}
if (!NILP (file_error) && CONSP (tail))
errmsg = XCAR (tail), tail = XCDR (tail);
- if (STRINGP (errmsg))
- Fprinc (errmsg, stream);
- else
- write_string_1 ("peculiar error", -1, stream);
+ {
+ const char *sep = ": ";
- for (i = 0; CONSP (tail); tail = XCDR (tail), i = 1)
- {
- Lisp_Object obj;
+ if (!STRINGP (errmsg))
+ write_string_1 ("peculiar error", -1, stream);
+ else if (SCHARS (errmsg))
+ Fprinc (errmsg, stream);
+ else
+ sep = NULL;
- write_string_1 (i ? ", " : ": ", 2, stream);
- obj = XCAR (tail);
- if (!NILP (file_error) || EQ (errname, Qend_of_file))
- Fprinc (obj, stream);
- else
- Fprin1 (obj, stream);
- }
+ for (; CONSP (tail); tail = XCDR (tail), sep = ", ")
+ {
+ Lisp_Object obj;
+
+ if (sep)
+ write_string_1 (sep, 2, stream);
+ obj = XCAR (tail);
+ if (!NILP (file_error)
+ || EQ (errname, Qend_of_file) || EQ (errname, Quser_error))
+ Fprinc (obj, stream);
+ else
+ Fprin1 (obj, stream);
+ }
+ }
UNGCPRO;
}
int loop_count = 0;
Lisp_Object halftail;
- /* Give up if we go so deep that print_object will get an error. */
- /* See similar code in print_object. */
- if (print_depth >= PRINT_CIRCLE)
- error ("Apparently circular structure being printed");
-
/* Avoid infinite recursion for circular nested structure
in the case where Vprint_circle is nil. */
if (NILP (Vprint_circle))
{
+ /* Give up if we go so deep that print_object will get an error. */
+ /* See similar code in print_object. */
+ if (print_depth >= PRINT_CIRCLE)
+ error ("Apparently circular structure being printed");
+
for (i = 0; i < print_depth; i++)
if (EQ (obj, being_printed[i]))
return;
#define PRINT_STRING_NON_CHARSET_FOUND 1
#define PRINT_STRING_UNSAFE_CHARSET_FOUND 2
-/* Bitwise or of the above macros. */
+/* Bitwise or of the above macros. */
static int print_check_string_result;
static void
QUIT;
- /* See similar code in print_preprocess. */
- if (print_depth >= PRINT_CIRCLE)
- error ("Apparently circular structure being printed");
-
/* Detect circularities and truncate them. */
- if (PRINT_CIRCLE_CANDIDATE_P (obj))
+ if (NILP (Vprint_circle))
{
- if (NILP (Vprint_circle) && NILP (Vprint_gensym))
- {
- /* Simple but incomplete way. */
- int i;
- for (i = 0; i < print_depth; i++)
- if (EQ (obj, being_printed[i]))
- {
- sprintf (buf, "#%d", i);
- strout (buf, -1, -1, printcharfun);
- return;
- }
- being_printed[print_depth] = obj;
- }
- else
+ /* Simple but incomplete way. */
+ int i;
+
+ /* See similar code in print_preprocess. */
+ if (print_depth >= PRINT_CIRCLE)
+ error ("Apparently circular structure being printed");
+
+ for (i = 0; i < print_depth; i++)
+ if (EQ (obj, being_printed[i]))
+ {
+ sprintf (buf, "#%d", i);
+ strout (buf, -1, -1, printcharfun);
+ return;
+ }
+ being_printed[print_depth] = obj;
+ }
+ else if (PRINT_CIRCLE_CANDIDATE_P (obj))
+ {
+ /* With the print-circle feature. */
+ Lisp_Object num = Fgethash (obj, Vprint_number_table, Qnil);
+ if (INTEGERP (num))
{
- /* With the print-circle feature. */
- Lisp_Object num = Fgethash (obj, Vprint_number_table, Qnil);
- if (INTEGERP (num))
+ EMACS_INT n = XINT (num);
+ if (n < 0)
+ { /* Add a prefix #n= if OBJ has not yet been printed;
+ that is, its status field is nil. */
+ sprintf (buf, "#%"pI"d=", -n);
+ strout (buf, -1, -1, printcharfun);
+ /* OBJ is going to be printed. Remember that fact. */
+ Fputhash (obj, make_number (- n), Vprint_number_table);
+ }
+ else
{
- EMACS_INT n = XINT (num);
- if (n < 0)
- { /* Add a prefix #n= if OBJ has not yet been printed;
- that is, its status field is nil. */
- sprintf (buf, "#%"pI"d=", -n);
- strout (buf, -1, -1, printcharfun);
- /* OBJ is going to be printed. Remember that fact. */
- Fputhash (obj, make_number (- n), Vprint_number_table);
- }
- else
- {
- /* Just print #n# if OBJ has already been printed. */
- sprintf (buf, "#%"pI"d#", n);
- strout (buf, -1, -1, printcharfun);
- return;
- }
+ /* Just print #n# if OBJ has already been printed. */
+ sprintf (buf, "#%"pI"d#", n);
+ strout (buf, -1, -1, printcharfun);
+ return;
}
}
}
/* Detect circular list. */
if (NILP (Vprint_circle))
{
- /* Simple but imcomplete way. */
+ /* Simple but incomplete way. */
if (i != 0 && EQ (obj, halftail))
{
sprintf (buf, " . #%"pMd, i / 2);
Vprint_gensym = Qnil;
DEFVAR_LISP ("print-circle", Vprint_circle,
- doc: /* *Non-nil means print recursive structures using #N= and #N# syntax.
+ doc: /* Non-nil means print recursive structures using #N= and #N# syntax.
If nil, printing proceeds recursively and may lead to
`max-lisp-eval-depth' being exceeded or an error may occur:
\"Apparently circular structure being printed.\" Also see
Vprint_circle = Qnil;
DEFVAR_LISP ("print-continuous-numbering", Vprint_continuous_numbering,
- doc: /* *Non-nil means number continuously across print calls.
+ doc: /* Non-nil means number continuously across print calls.
This affects the numbers printed for #N= labels and #M# references.
See also `print-circle', `print-gensym', and `print-number-table'.
This variable should not be set with `setq'; bind it with a `let' instead. */);
HCoop / bpt / emacs.git / blobdiff