/* Declaration for error-reporting function for Bison.
- Copyright (C) 2000 Free Software Foundation, Inc.
+
+ Copyright (C) 2000, 2001, 2002, 2004, 2005, 2006
+ Free Software Foundation, Inc.
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
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
USA. */
/* Based on error.c and error.h,
written by David MacKenzie <djm@gnu.ai.mit.edu>. */
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <stdio.h>
-
-#if HAVE_VPRINTF || HAVE_DOPRNT || _LIBC
-# if __STDC__
-# include <stdarg.h>
-# define VA_START(args, lastarg) va_start(args, lastarg)
-# else
-# include <varargs.h>
-# define VA_START(args, lastarg) va_start(args)
-# endif
-#else
-# define va_alist a1, a2, a3, a4, a5, a6, a7, a8
-# define va_dcl char *a1, *a2, *a3, *a4, *a5, *a6, *a7, *a8;
-#endif
+#include <config.h>
+#include "system.h"
-#if STDC_HEADERS || _LIBC
-# include <stdlib.h>
-# include <string.h>
-#else
-void exit ();
-#endif
+#include <stdarg.h>
#include "complain.h"
+#include "files.h"
-#ifndef _
-# define _(String) String
-#endif
-
-#ifdef _LIBC
-/* In the GNU C library, there is a predefined variable for this. */
-# define program_name program_invocation_name
-#else /* not _LIBC */
/* The calling program should define program_name and set it to the
name of the executing program. */
extern char *program_name;
-#endif
-
-/* This variable is incremented each time `warn' is called. */
-unsigned int warn_message_count;
-/* This variable is incremented each time `complain' is called. */
-unsigned int complain_message_count;
+bool complaint_issued;
-/* Sometimes we want to have at most one error per line. This
- variable controls whether this mode is selected or not. */
-int error_one_per_line;
\f
-/*--------------------------------.
-| Report a warning, and proceed. |
-`--------------------------------*/
+/** Report an error message.
+ *
+ * \param loc the location, defaulting to the current file,
+ * or the program name.
+ * \param prefix put before the message (e.g., "warning").
+ * \param message the error message, a printf format string.
+ * \param args the arguments of the format string.
+ */
+static
void
-#if defined VA_START && __STDC__
-warn (const char *message, ...)
-#else
-warn (message, va_alist)
- char *message;
- va_dcl
-#endif
+error_message (location *loc,
+ const char *prefix,
+ const char *message, va_list args)
{
-#ifdef VA_START
- va_list args;
-#endif
-
- if (error_one_per_line)
- {
- static const char *old_infile;
- static int old_lineno;
-
- if (old_lineno == lineno &&
- (infile == old_infile || !strcmp (old_infile, infile)))
- /* Simply return and print nothing. */
- return;
-
- old_infile = infile;
- old_lineno = lineno;
- }
-
- fflush (stdout);
- if (infile != NULL)
- fprintf (stderr, "%s:%d: ", infile, lineno);
+ if (loc)
+ location_print (stderr, *loc);
else
- fprintf (stderr, "%s:", program_name);
+ fputs (current_file ? current_file : program_name, stderr);
+ fputs (": ", stderr);
- fputs (_("warning: "), stderr);
+ if (prefix)
+ fprintf (stderr, "%s: ", prefix);
-#ifdef VA_START
- VA_START (args, message);
vfprintf (stderr, message, args);
va_end (args);
-#else
- fprintf (stderr, message, a1, a2, a3, a4, a5, a6, a7, a8);
-#endif
-
- ++warn_message_count;
putc ('\n', stderr);
fflush (stderr);
}
-\f
-/*-----------------------------------------------------------.
-| An error has occurred, but we can proceed, and die later. |
-`-----------------------------------------------------------*/
-void
-#if defined VA_START && __STDC__
-complain (const char *message, ...)
-#else
-complain (message, va_alist)
- char *message;
- va_dcl
-#endif
-{
-#ifdef VA_START
- va_list args;
-#endif
-
- if (error_one_per_line)
- {
- static const char *old_infile;
- static int old_lineno;
-
- if (old_lineno == lineno &&
- (infile == old_infile || !strcmp (old_infile, infile)))
- /* Simply return and print nothing. */
- return;
-
- old_infile = infile;
- old_lineno = lineno;
- }
+/** Wrap error_message() with varargs handling. */
+#define ERROR_MESSAGE(Loc, Prefix, Message) \
+{ \
+ va_list args; \
+ va_start (args, Message); \
+ error_message (Loc, Prefix, Message, args); \
+}
- fflush (stdout);
- if (infile != NULL)
- fprintf (stderr, "%s:%d: ", infile, lineno);
- else
- fprintf (stderr, "%s:", program_name);
-#ifdef VA_START
- VA_START (args, message);
- vfprintf (stderr, message, args);
- va_end (args);
-#else
- fprintf (stderr, message, a1, a2, a3, a4, a5, a6, a7, a8);
-#endif
+/*--------------------------------.
+| Report a warning, and proceed. |
+`--------------------------------*/
- ++complain_message_count;
- putc ('\n', stderr);
- fflush (stderr);
+void
+warn_at (location loc, const char *message, ...)
+{
+ ERROR_MESSAGE (&loc, _("warning"), message);
}
-\f
-/*-------------------------------------------------.
-| A severe error has occurred, we cannot proceed. |
-`-------------------------------------------------*/
void
-#if defined VA_START && __STDC__
-fatal (const char *message, ...)
-#else
-fatal (message, va_alist)
- char *message;
- va_dcl
-#endif
+warn (const char *message, ...)
{
-#ifdef VA_START
- va_list args;
-#endif
+ ERROR_MESSAGE (NULL, _("warning"), message);
+}
- fflush (stdout);
- if (infile != NULL)
- fprintf (stderr, "%s:%d: ", infile, lineno);
- else
- fprintf (stderr, "%s:", program_name);
- fputs (_("fatal error: "), stderr);
+/*-----------------------------------------------------------.
+| An error has occurred, but we can proceed, and die later. |
+`-----------------------------------------------------------*/
-#ifdef VA_START
- VA_START (args, message);
- vfprintf (stderr, message, args);
- va_end (args);
-#else
- fprintf (stderr, message, a1, a2, a3, a4, a5, a6, a7, a8);
-#endif
- putc ('\n', stderr);
- fflush (stderr);
- exit (1);
+void
+complain_at (location loc, const char *message, ...)
+{
+ ERROR_MESSAGE (&loc, NULL, message);
+ complaint_issued = true;
}
-\f
-/*------------------------------------------------------------------.
-| A severe error has occurred, we cannot proceed. Exit with STATUS, |
-| and report the error message of the errno ERRNUM. |
-`------------------------------------------------------------------*/
void
-#if defined VA_START && __STDC__
-error (int status, int errnum,
- const char *message, ...)
-#else
-error (status, errnum, message, va_alist)
- int status;
- int errnum;
- char *message;
- va_dcl
-#endif
+complain (const char *message, ...)
{
-#ifdef VA_START
- va_list args;
-#endif
+ ERROR_MESSAGE (NULL, NULL, message);
+ complaint_issued = true;
+}
- fflush (stdout);
- if (infile != NULL)
- fprintf (stderr, "%s:%d: ", infile, lineno);
- else
- fprintf (stderr, "%s:", program_name);
- fputs (_("fatal error: "), stderr);
+/*-------------------------------------------------.
+| A severe error has occurred, we cannot proceed. |
+`-------------------------------------------------*/
-#ifdef VA_START
- VA_START (args, message);
- vfprintf (stderr, message, args);
- va_end (args);
-#else
- fprintf (stderr, message, a1, a2, a3, a4, a5, a6, a7, a8);
-#endif
+void
+fatal_at (location loc, const char *message, ...)
+{
+ ERROR_MESSAGE (&loc, _("fatal error"), message);
+ exit (EXIT_FAILURE);
+}
- if (errnum)
- {
-#if defined HAVE_STRERROR_R || _LIBC
- char errbuf[1024];
-# if HAVE_WORKING_STRERROR_R || _LIBC
- fprintf (stderr, ": %s", __strerror_r (errnum, errbuf, sizeof errbuf));
-# else
- /* Don't use __strerror_r's return value because on some systems
- (at least DEC UNIX 4.0[A-D]) strerror_r returns `int'. */
- __strerror_r (errnum, errbuf, sizeof errbuf);
- fprintf (stderr, ": %s", errbuf);
-# endif
-#else
- fprintf (stderr, ": %s", strerror (errnum));
-#endif
- }
- putc ('\n', stderr);
- fflush (stderr);
- if (status)
- exit (status);
+void
+fatal (const char *message, ...)
+{
+ ERROR_MESSAGE (NULL, _("fatal error"), message);
+ exit (EXIT_FAILURE);
}
projects / bison.git / blobdiff