/* Printing of backtraces and error messages
- * Copyright (C) 1996,1997,1998,1999,2000,2001 Free Software Foundation
+ * Copyright (C) 1996,1997,1998,1999,2000,2001, 2003, 2004, 2006 Free Software Foundation
*
- * This program 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.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This program is distributed in the hope that it will be useful,
+ * This library 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.
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with this software; see the file COPYING. If not, write to
- * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
- * Boston, MA 02111-1307 USA
- *
- * As a special exception, the Free Software Foundation gives permission
- * for additional uses of the text contained in its release of GUILE.
- *
- * The exception is that, if you link the GUILE library with other files
- * to produce an executable, this does not by itself cause the
- * resulting executable to be covered by the GNU General Public License.
- * Your use of that executable is in no way restricted on account of
- * linking the GUILE library code into it.
- *
- * This exception does not however invalidate any other reasons why
- * the executable file might be covered by the GNU General Public License.
- *
- * This exception applies only to the code released by the
- * Free Software Foundation under the name GUILE. If you copy
- * code from other Free Software Foundation releases into a copy of
- * GUILE, as the General Public License permits, the exception does
- * not apply to the code that you add in this way. To avoid misleading
- * anyone as to the status of such modified files, you must delete
- * this exception notice from them.
- *
- * If you write modifications of your own for GUILE, it is your choice
- * whether to permit this exception to apply to your modifications.
- * If you do not wish that, delete this exception notice.
- *
- * The author can be reached at djurfeldt@nada.kth.se
- * Mikael Djurfeldt, SANS/NADA KTH, 10044 STOCKHOLM, SWEDEN */
-
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#if HAVE_CONFIG_H
+# include <config.h>
+#endif
#include <stdio.h>
#include <ctype.h>
+#include <assert.h>
#include "libguile/_scm.h"
#include "libguile/fluids.h"
#include "libguile/ports.h"
#include "libguile/strings.h"
+#include "libguile/dynwind.h"
#include "libguile/validate.h"
+#include "libguile/lang.h"
#include "libguile/backtrace.h"
#include "libguile/filesys.h"
+#include "libguile/private-options.h"
/* {Error reporting and backtraces}
- * (A first approximation.)
*
* Note that these functions shouldn't generate errors themselves.
*/
-#ifndef SCM_RECKLESS
+/* Print parameters for error messages. */
+
+#define DISPLAY_ERROR_MESSAGE_MAX_LEVEL 7
+#define DISPLAY_ERROR_MESSAGE_MAX_LENGTH 10
+
+/* Print parameters for failing expressions in error messages.
+ * (See also `print_params' below for backtrace print parameters.)
+ */
+
+#define DISPLAY_EXPRESSION_MAX_LEVEL 2
+#define DISPLAY_EXPRESSION_MAX_LENGTH 3
+
#undef SCM_ASSERT
#define SCM_ASSERT(_cond, _arg, _pos, _subr) \
if (!(_cond)) \
return SCM_BOOL_F;
-#endif
SCM scm_the_last_stack_fluid_var;
* filename with the source properties? Then we could in case of
* non-file ports give at least some more details than just
* "<unnamed port>". */
- if (SCM_STRINGP (fname))
+ if (scm_is_true (fname))
scm_prin1 (fname, port, 0);
else
scm_puts ("<unnamed port>", port);
- if (!SCM_FALSEP (line) && !SCM_FALSEP (col))
+ if (scm_is_true (line) && scm_is_true (col))
{
scm_putc (':', port);
- scm_intprint (SCM_INUM (line) + 1, 10, port);
+ scm_intprint (scm_to_long (line) + 1, 10, port);
scm_putc (':', port);
- scm_intprint (SCM_INUM (col) + 1, 10, port);
+ scm_intprint (scm_to_long (col) + 1, 10, port);
}
}
else
}
+struct display_error_message_data {
+ SCM message;
+ SCM args;
+ SCM port;
+ scm_print_state *pstate;
+ int old_fancyp;
+ int old_level;
+ int old_length;
+};
+
+static SCM
+display_error_message (struct display_error_message_data *d)
+{
+ if (scm_is_string (d->message) && scm_is_true (scm_list_p (d->args)))
+ scm_simple_format (d->port, d->message, d->args);
+ else
+ scm_display (d->message, d->port);
+ scm_newline (d->port);
+ return SCM_UNSPECIFIED;
+}
+
+static void
+before_display_error_message (struct display_error_message_data *d)
+{
+ scm_print_state *pstate = d->pstate;
+ d->old_fancyp = pstate->fancyp;
+ d->old_level = pstate->level;
+ d->old_length = pstate->length;
+ pstate->fancyp = 1;
+ pstate->level = DISPLAY_ERROR_MESSAGE_MAX_LEVEL;
+ pstate->length = DISPLAY_ERROR_MESSAGE_MAX_LENGTH;
+}
+
+static void
+after_display_error_message (struct display_error_message_data *d)
+{
+ scm_print_state *pstate = d->pstate;
+ pstate->fancyp = d->old_fancyp;
+ pstate->level = d->old_level;
+ pstate->length = d->old_length;
+}
+
void
scm_display_error_message (SCM message, SCM args, SCM port)
{
- if (SCM_STRINGP (message) && !SCM_FALSEP (scm_list_p (args)))
- {
- scm_simple_format (port, message, args);
- scm_newline (port);
- }
- else
- {
- scm_display (message, port);
- scm_newline (port);
- }
+ struct display_error_message_data d;
+ SCM print_state;
+ scm_print_state *pstate;
+
+ port = scm_i_port_with_print_state (port, SCM_UNDEFINED);
+ print_state = SCM_PORT_WITH_PS_PS (port);
+ pstate = SCM_PRINT_STATE (print_state);
+
+ d.message = message;
+ d.args = args;
+ d.port = port;
+ d.pstate = pstate;
+ scm_internal_dynamic_wind ((scm_t_guard) before_display_error_message,
+ (scm_t_inner) display_error_message,
+ (scm_t_guard) after_display_error_message,
+ &d,
+ &d);
}
static void
-display_expression (SCM frame,SCM pname,SCM source,SCM port)
+display_expression (SCM frame, SCM pname, SCM source, SCM port)
{
SCM print_state = scm_make_print_state ();
scm_print_state *pstate = SCM_PRINT_STATE (print_state);
pstate->writingp = 0;
pstate->fancyp = 1;
- pstate->level = 2;
- pstate->length = 3;
- if (SCM_SYMBOLP (pname) || SCM_STRINGP (pname))
+ pstate->level = DISPLAY_EXPRESSION_MAX_LEVEL;
+ pstate->length = DISPLAY_EXPRESSION_MAX_LENGTH;
+ if (scm_is_symbol (pname) || scm_is_string (pname))
{
if (SCM_FRAMEP (frame)
&& SCM_FRAME_EVAL_ARGS_P (frame))
{
scm_puts (" in expression ", port);
pstate->writingp = 1;
- scm_iprin1 (scm_unmemoize (source), port, pstate);
+ scm_iprin1 (scm_i_unmemoize_expr (source), port, pstate);
}
}
else if (SCM_MEMOIZEDP (source))
{
scm_puts ("In expression ", port);
pstate->writingp = 1;
- scm_iprin1 (scm_unmemoize (source), port, pstate);
+ scm_iprin1 (scm_i_unmemoize_expr (source), port, pstate);
}
scm_puts (":\n", port);
scm_free_print_state (print_state);
SCM prev_frame = SCM_BOOL_F;
SCM pname = a->subr;
- if (SCM_DEBUGGINGP
+ if (scm_debug_mode_p
&& SCM_STACKP (a->stack)
&& SCM_STACK_LENGTH (a->stack) > 0)
{
current_frame = scm_stack_ref (a->stack, SCM_INUM0);
source = SCM_FRAME_SOURCE (current_frame);
prev_frame = SCM_FRAME_PREV (current_frame);
- if (!SCM_MEMOIZEDP (source) && !SCM_FALSEP (prev_frame))
+ if (!SCM_MEMOIZEDP (source) && scm_is_true (prev_frame))
source = SCM_FRAME_SOURCE (prev_frame);
- if (!SCM_SYMBOLP (pname) && !SCM_STRINGP (pname) && SCM_FRAME_PROC_P (current_frame)
- && SCM_EQ_P (scm_procedure_p (SCM_FRAME_PROC (current_frame)), SCM_BOOL_T))
+ if (!scm_is_symbol (pname)
+ && !scm_is_string (pname)
+ && SCM_FRAME_PROC_P (current_frame)
+ && scm_is_true (scm_procedure_p (SCM_FRAME_PROC (current_frame))))
pname = scm_procedure_name (SCM_FRAME_PROC (current_frame));
}
- if (SCM_SYMBOLP (pname) || SCM_STRINGP (pname) || SCM_MEMOIZEDP (source))
+ if (scm_is_symbol (pname) || scm_is_string (pname) || SCM_MEMOIZEDP (source))
{
display_header (source, a->port);
display_expression (current_frame, pname, source, a->port);
(SCM stack, SCM port, SCM subr, SCM message, SCM args, SCM rest),
"Display an error message to the output port @var{port}.\n"
"@var{stack} is the saved stack for the error, @var{subr} is\n"
- "the name of the procedure in which the error occured and\n"
+ "the name of the procedure in which the error occurred and\n"
"@var{message} is the actual error message, which may contain\n"
"formatting instructions. These will format the arguments in\n"
"the list @var{args} accordingly. @var{rest} is currently\n"
print_params_t *new_params;
SCM_VALIDATE_NONEMPTYLIST_COPYLEN (2, params, n);
- for (ls = params; !SCM_NULLP (ls); ls = SCM_CDR (ls))
+ for (ls = params; !SCM_NULL_OR_NIL_P (ls); ls = SCM_CDR (ls))
SCM_ASSERT (scm_ilength (SCM_CAR (params)) == 2
- && SCM_INUMP (SCM_CAAR (ls))
- && SCM_INUM (SCM_CAAR (ls)) >= 0
- && SCM_INUMP (SCM_CADAR (ls))
- && SCM_INUM (SCM_CADAR (ls)) >= 0,
+ && scm_is_unsigned_integer (SCM_CAAR (ls), 0, INT_MAX)
+ && scm_is_unsigned_integer (SCM_CADAR (ls), 0, INT_MAX),
params,
SCM_ARG2,
s_scm_set_print_params_x);
- new_params = scm_must_malloc (n * sizeof (print_params_t),
- FUNC_NAME);
+ new_params = scm_malloc (n * sizeof (print_params_t));
if (print_params != default_print_params)
- scm_must_free (print_params);
+ free (print_params);
print_params = new_params;
for (i = 0; i < n; ++i)
{
- print_params[i].level = SCM_INUM (SCM_CAAR (params));
- print_params[i].length = SCM_INUM (SCM_CADAR (params));
+ print_params[i].level = scm_to_int (SCM_CAAR (params));
+ print_params[i].length = scm_to_int (SCM_CADAR (params));
params = SCM_CDR (params);
}
n_print_params = n;
}
static void
-display_frame_expr (char *hdr,SCM exp,char *tlr,int indentation,SCM sport,SCM port,scm_print_state *pstate)
+display_frame_expr (char *hdr, SCM exp, char *tlr, int indentation, SCM sport, SCM port, scm_print_state *pstate)
{
- SCM string;
int i = 0, n;
scm_t_ptob_descriptor *ptob = scm_ptobs + SCM_PTOBNUM (sport);
do
{
pstate->length = print_params[i].length;
ptob->seek (sport, 0, SEEK_SET);
- if (SCM_CONSP (exp))
+ if (scm_is_pair (exp))
{
pstate->level = print_params[i].level - 1;
scm_iprlist (hdr, exp, tlr[0], sport, pstate);
}
while (indentation + n > SCM_BACKTRACE_WIDTH && i < n_print_params);
ptob->truncate (sport, n);
- string = scm_strport_to_string (sport);
- /* Remove control characters */
- for (i = 0; i < n; ++i)
- if (iscntrl (SCM_STRING_CHARS (string)[i]))
- SCM_STRING_CHARS (string)[i] = ' ';
- /* Truncate */
- if (indentation + n > SCM_BACKTRACE_WIDTH)
- {
- n = SCM_BACKTRACE_WIDTH - indentation;
- SCM_STRING_CHARS (string)[n - 1] = '$';
- }
- scm_lfwrite (SCM_STRING_CHARS (string), n, port);
+ scm_display (scm_strport_to_string (sport), port);
}
static void
-display_application (SCM frame,int indentation,SCM sport,SCM port,scm_print_state *pstate)
+display_application (SCM frame, int indentation, SCM sport, SCM port, scm_print_state *pstate)
{
SCM proc = SCM_FRAME_PROC (frame);
- SCM name = (!SCM_FALSEP (scm_procedure_p (proc))
+ SCM name = (scm_is_true (scm_procedure_p (proc))
? scm_procedure_name (proc)
: SCM_BOOL_F);
display_frame_expr ("[",
- scm_cons (!SCM_FALSEP (name) ? name : proc,
+ scm_cons (scm_is_true (name) ? name : proc,
SCM_FRAME_ARGS (frame)),
SCM_FRAME_EVAL_ARGS_P (frame) ? " ..." : "]",
indentation,
"output.")
#define FUNC_NAME s_scm_display_application
{
- SCM_VALIDATE_FRAME (1,frame);
+ SCM_VALIDATE_FRAME (1, frame);
if (SCM_UNBNDP (port))
- port = scm_cur_outp;
+ port = scm_current_output_port ();
else
- SCM_VALIDATE_OPOUTPORT (2,port);
+ SCM_VALIDATE_OPOUTPORT (2, port);
if (SCM_UNBNDP (indent))
indent = SCM_INUM0;
- else
- SCM_VALIDATE_INUM (3,indent);
if (SCM_FRAME_PROC_P (frame))
/* Display an application. */
/* Create a string port used for adaptation of printing parameters. */
sport = scm_mkstrport (SCM_INUM0,
- scm_make_string (SCM_MAKINUM (240),
+ scm_make_string (scm_from_int (240),
SCM_UNDEFINED),
SCM_OPN | SCM_WRTNG,
FUNC_NAME);
pstate->writingp = 1;
pstate->fancyp = 1;
- display_application (frame, SCM_INUM (indent), sport, port, pstate);
+ display_application (frame, scm_to_int (indent), sport, port, pstate);
return SCM_BOOL_T;
}
else
display_backtrace_get_file_line (frame, &file, &line);
- if (SCM_EQ_P (file, *last_file))
+ if (scm_is_eq (file, *last_file))
return;
*last_file = file;
scm_puts ("In ", port);
- if (SCM_FALSEP (file))
- if (SCM_FALSEP (line))
+ if (scm_is_false (file))
+ if (scm_is_false (line))
scm_puts ("unknown file", port);
else
scm_puts ("current input", port);
display_backtrace_get_file_line (frame, &file, &line);
- if (SCM_EQ_P (SCM_SHOW_FILE_NAME, sym_base))
+ if (scm_is_eq (SCM_PACK (SCM_SHOW_FILE_NAME), sym_base))
{
- if (SCM_FALSEP (file))
+ if (scm_is_false (file))
{
- if (SCM_FALSEP (line))
+ if (scm_is_false (line))
scm_putc ('?', port);
else
scm_puts ("<stdin>", port);
else
{
pstate -> writingp = 0;
- scm_iprin1 (SCM_STRINGP (file) ? scm_basename (file, SCM_UNDEFINED) : file,
+#ifdef HAVE_POSIX
+ scm_iprin1 ((scm_is_string (file)?
+ scm_basename (file, SCM_UNDEFINED) : file),
port, pstate);
+#else
+ scm_iprin1 (file, port, pstate);
+#endif
pstate -> writingp = 1;
}
scm_putc (':', port);
}
- else if (!SCM_FALSEP (line))
+ else if (scm_is_true (line))
{
int i, j=0;
- for (i = SCM_INUM (line)+1; i > 0; i = i/10, j++)
+ for (i = scm_to_int (line)+1; i > 0; i = i/10, j++)
;
indent (4-j, port);
}
- if (SCM_FALSEP (line))
+ if (scm_is_false (line))
scm_puts (" ?", port);
else
- scm_intprint (SCM_INUM (line) + 1, 10, port);
+ scm_intprint (scm_to_int (line) + 1, 10, port);
scm_puts (": ", port);
}
static void
-display_frame (SCM frame,int nfield,int indentation,SCM sport,SCM port,scm_print_state *pstate)
+display_frame (SCM frame, int nfield, int indentation, SCM sport, SCM port, scm_print_state *pstate)
{
int n, i, j;
}
/* display file name and line number */
- if (!SCM_FALSEP (SCM_SHOW_FILE_NAME))
+ if (scm_is_true (SCM_PACK (SCM_SHOW_FILE_NAME)))
display_backtrace_file_and_line (frame, port, pstate);
/* Check size of frame number. */
indent (nfield - (i ? i : 1), port);
/* Frame number. */
- scm_iprin1 (SCM_MAKINUM (n), port, pstate);
+ scm_iprin1 (scm_from_int (n), port, pstate);
/* Real frame marker */
scm_putc (SCM_FRAME_REAL_P (frame) ? '*' : ' ', port);
/* Display a special form. */
{
SCM source = SCM_FRAME_SOURCE (frame);
- SCM copy = (SCM_CONSP (source)
+ SCM copy = (scm_is_pair (source)
? scm_source_property (source, scm_sym_copy)
: SCM_BOOL_F);
SCM umcopy = (SCM_MEMOIZEDP (source)
- ? scm_unmemoize (source)
+ ? scm_i_unmemoize_expr (source)
: SCM_BOOL_F);
display_frame_expr ("(",
- SCM_CONSP (copy) ? copy : umcopy,
+ scm_is_pair (copy) ? copy : umcopy,
")",
nfield + 1 + indentation,
sport,
SCM port;
SCM first;
SCM depth;
+ SCM highlight_objects;
};
static SCM
/* Argument checking and extraction. */
SCM_VALIDATE_STACK (1, a->stack);
SCM_VALIDATE_OPOUTPORT (2, a->port);
- n_frames = SCM_INUM (scm_stack_length (a->stack));
- n = SCM_INUMP (a->depth) ? SCM_INUM (a->depth) : SCM_BACKTRACE_DEPTH;
+ n_frames = scm_to_int (scm_stack_length (a->stack));
+ n = scm_is_integer (a->depth) ? scm_to_int (a->depth) : SCM_BACKTRACE_DEPTH;
if (SCM_BACKWARDS_P)
{
- beg = SCM_INUMP (a->first) ? SCM_INUM (a->first) : 0;
+ beg = scm_is_integer (a->first) ? scm_to_int (a->first) : 0;
end = beg + n - 1;
if (end >= n_frames)
end = n_frames - 1;
}
else
{
- if (SCM_INUMP (a->first))
+ if (scm_is_integer (a->first))
{
- beg = SCM_INUM (a->first);
+ beg = scm_to_int (a->first);
end = beg - n + 1;
if (end < 0)
end = 0;
/* Create a string port used for adaptation of printing parameters. */
sport = scm_mkstrport (SCM_INUM0,
- scm_make_string (SCM_MAKINUM (240), SCM_UNDEFINED),
+ scm_make_string (scm_from_int (240), SCM_UNDEFINED),
SCM_OPN | SCM_WRTNG,
FUNC_NAME);
pstate = SCM_PRINT_STATE (print_state);
pstate->writingp = 1;
pstate->fancyp = 1;
+ pstate->highlight_objects = a->highlight_objects;
/* First find out if it's reasonable to do indentation. */
if (SCM_BACKWARDS_P)
unsigned int j;
indent_p = 1;
- frame = scm_stack_ref (a->stack, SCM_MAKINUM (beg));
+ frame = scm_stack_ref (a->stack, scm_from_int (beg));
for (i = 0, j = 0; i < n; ++i)
{
if (SCM_FRAME_REAL_P (frame))
}
/* Determine size of frame number field. */
- j = SCM_FRAME_NUMBER (scm_stack_ref (a->stack, SCM_MAKINUM (end)));
+ j = SCM_FRAME_NUMBER (scm_stack_ref (a->stack, scm_from_int (end)));
for (i = 0; j > 0; ++i) j /= 10;
nfield = i ? i : 1;
/* Print frames. */
- frame = scm_stack_ref (a->stack, SCM_MAKINUM (beg));
+ frame = scm_stack_ref (a->stack, scm_from_int (beg));
indentation = 1;
last_file = SCM_UNDEFINED;
for (i = 0; i < n; ++i)
{
- if (!SCM_EQ_P (SCM_SHOW_FILE_NAME, sym_base))
+ if (!scm_is_eq (SCM_PACK (SCM_SHOW_FILE_NAME), sym_base))
display_backtrace_file (frame, &last_file, a->port, pstate);
display_frame (frame, nfield, indentation, sport, a->port, pstate);
}
#undef FUNC_NAME
-SCM_DEFINE (scm_display_backtrace, "display-backtrace", 2, 2, 0,
- (SCM stack, SCM port, SCM first, SCM depth),
- "Display a backtrace to the output port @var{port}. @var{stack}\n"
+SCM_DEFINE (scm_display_backtrace_with_highlights, "display-backtrace", 2, 3, 0,
+ (SCM stack, SCM port, SCM first, SCM depth, SCM highlights),
+ "Display a backtrace to the output port @var{port}. @var{stack}\n"
"is the stack to take the backtrace from, @var{first} specifies\n"
- "where in the stack to start and @var{depth} how much frames\n"
- "to display. Both @var{first} and @var{depth} can be @code{#f},\n"
- "which means that default values will be used.")
-#define FUNC_NAME s_scm_display_backtrace
+ "where in the stack to start and @var{depth} how many frames\n"
+ "to display. @var{first} and @var{depth} can be @code{#f},\n"
+ "which means that default values will be used.\n"
+ "If @var{highlights} is given it should be a list; the elements\n"
+ "of this list will be highlighted wherever they appear in the\n"
+ "backtrace.")
+#define FUNC_NAME s_scm_display_backtrace_with_highlights
{
struct display_backtrace_args a;
struct display_error_handler_data data;
a.port = port;
a.first = first;
a.depth = depth;
+ if (SCM_UNBNDP (highlights))
+ a.highlight_objects = SCM_EOL;
+ else
+ a.highlight_objects = highlights;
data.mode = "backtrace";
data.port = port;
scm_internal_catch (SCM_BOOL_T,
}
#undef FUNC_NAME
+SCM
+scm_display_backtrace (SCM stack, SCM port, SCM first, SCM depth)
+{
+ return scm_display_backtrace_with_highlights (stack, port, first, depth,
+ SCM_EOL);
+}
+
SCM_VARIABLE (scm_has_shown_backtrace_hint_p_var, "has-shown-backtrace-hint?");
-SCM_DEFINE (scm_backtrace, "backtrace", 0, 0, 0,
- (),
+SCM_DEFINE (scm_backtrace_with_highlights, "backtrace", 0, 1, 0,
+ (SCM highlights),
"Display a backtrace of the stack saved by the last error\n"
- "to the current output port.")
-#define FUNC_NAME s_scm_backtrace
+ "to the current output port. If @var{highlights} is given\n"
+ "it should be a list; the elements of this list will be\n"
+ "highlighted wherever they appear in the backtrace.")
+#define FUNC_NAME s_scm_backtrace_with_highlights
{
+ SCM port = scm_current_output_port ();
SCM the_last_stack =
scm_fluid_ref (SCM_VARIABLE_REF (scm_the_last_stack_fluid_var));
- if (!SCM_FALSEP (the_last_stack))
+
+ if (SCM_UNBNDP (highlights))
+ highlights = SCM_EOL;
+
+ if (scm_is_true (the_last_stack))
{
- scm_newline (scm_cur_outp);
- scm_puts ("Backtrace:\n", scm_cur_outp);
- scm_display_backtrace (the_last_stack,
- scm_cur_outp,
- SCM_UNDEFINED,
- SCM_UNDEFINED);
- scm_newline (scm_cur_outp);
- if (SCM_FALSEP (SCM_VARIABLE_REF (scm_has_shown_backtrace_hint_p_var))
+ scm_newline (port);
+ scm_puts ("Backtrace:\n", port);
+ scm_display_backtrace_with_highlights (the_last_stack,
+ port,
+ SCM_BOOL_F,
+ SCM_BOOL_F,
+ highlights);
+ scm_newline (port);
+ if (scm_is_false (SCM_VARIABLE_REF (scm_has_shown_backtrace_hint_p_var))
&& !SCM_BACKTRACE_P)
{
scm_puts ("Type \"(debug-enable 'backtrace)\" if you would like "
"a backtrace\n"
"automatically if an error occurs in the future.\n",
- scm_cur_outp);
+ port);
SCM_VARIABLE_SET (scm_has_shown_backtrace_hint_p_var, SCM_BOOL_T);
}
}
else
{
- scm_puts ("No backtrace available.\n", scm_cur_outp);
+ scm_puts ("No backtrace available.\n", port);
}
return SCM_UNSPECIFIED;
}
#undef FUNC_NAME
+SCM
+scm_backtrace (void)
+{
+ return scm_backtrace_with_highlights (SCM_EOL);
+}
+
\f
void
SCM f = scm_make_fluid ();
scm_the_last_stack_fluid_var = scm_c_define ("the-last-stack", f);
-#ifndef SCM_MAGIC_SNARFER
#include "libguile/backtrace.x"
-#endif
}
/*