* src/lalr.c (state_lookahead_tokens_count): For code readability,

[bison.git] / src / complain.c

diff --git a/src/complain.c b/src/complain.c
index 7adff368b94832f5ebcab9b66f57e72423854fd6..910b41100b8d0a92a1be452db3c26f772d80d9bc 100644 (file)
--- a/src/complain.c
+++ b/src/complain.c
@@ -1,5 +1,7 @@
 /* Declaration for error-reporting function for Bison.
 /* Declaration for error-reporting function for Bison.

-   Copyright (C) 2000, 2001, 2002  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
 
    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


@@ -13,196 +15,127 @@
 
    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
 
    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>.  */
 
    USA.  */
 
 /* Based on error.c and error.h,
    written by David MacKenzie <djm@gnu.ai.mit.edu>.  */
 

+#include <config.h>

 #include "system.h"
 
 #include <stdarg.h>
 #include "system.h"
 
 #include <stdarg.h>

-#if ! (HAVE_VPRINTF || defined vfprintf)
-# define vfprintf(stream, message, args) _doprnt (message, args, stream)
-#endif
-
-#if STDC_HEADERS || _LIBC
-# include <stdlib.h>
-# include <string.h>
-#endif

 
 #include "complain.h"
 
 #include "complain.h"

+#include "files.h"
+#include "getargs.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
-# include <errno.h>
-
-/* In GNU libc we want do not want to use the common name `error' directly.
-   Instead make it a weak alias.  */
-# define error __error
-# define error_at_line __error_at_line
-
-# ifdef USE_IN_LIBIO
-#  include <libio/iolibio.h>
-#  define fflush(s) _IO_fflush (s)
-# endif
-
-#else /* not _LIBC */
-
-/* The calling program should define program_name and set it to the
-   name of the executing program.  */
-extern char *program_name;
-
-# if HAVE_STRERROR
-#  ifndef HAVE_DECL_STRERROR
-"this configure-time declaration test was not run"
-#  endif
-#  if !HAVE_DECL_STRERROR && !defined strerror
-char *strerror (int);
-#  endif
-# else
-static char *
-private_strerror (int errnum)
-{
-  extern char *sys_errlist[];
-  extern int sys_nerr;
-
-  if (errnum > 0 && errnum <= sys_nerr)
-    return _(sys_errlist[errnum]);
-  return _("Unknown system error");
-}
-#  define strerror private_strerror
-# endif /* HAVE_STRERROR */
-#endif /* not _LIBC */
-
-/* This variable is set each time `warn' is called.  */
-bool warning_issued;
-
-/* This variable is set each time `complain' is called.  */

 bool complaint_issued;
 
 \f
 bool complaint_issued;
 
 \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
 void

-warn_at (location_t location, const char *message, ...)
+error_message (location *loc,
+              const char *prefix,
+              const char *message, va_list args)

 {
 {

-  va_list args;
-
-  fflush (stdout);
-  LOCATION_PRINT (stderr, location);
+  if (loc)
+    location_print (stderr, *loc);
+  else
+    fputs (current_file ? current_file : program_name, stderr);

   fputs (": ", stderr);
   fputs (": ", stderr);

-  fputs (_("warning: "), stderr);

 
 

-  va_start (args, message);
+  if (prefix)
+    fprintf (stderr, "%s: ", prefix);
+

   vfprintf (stderr, message, args);
   va_end (args);
   vfprintf (stderr, message, args);
   va_end (args);

-
-  warning_issued = true;

   putc ('\n', stderr);
   fflush (stderr);
 }
 
   putc ('\n', stderr);
   fflush (stderr);
 }
 

-void
-warn (const char *message, ...)
-{
-  va_list args;
+/** 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);
-  fprintf (stderr, "%s: %s", infile ? infile : program_name, _("warning: "));

 
 

-  va_start (args, message);
-  vfprintf (stderr, message, args);
-  va_end (args);
+/*--------------------------------.
+| Report a warning, and proceed.  |
+`--------------------------------*/

 
 

+static void
+set_warning_issued (void)
+{
+  static bool warning_issued = false;
+  if (!warning_issued && (warnings_flag & warnings_error))
+    {
+      fprintf (stderr, "%s: warnings being treated as errors\n", program_name);
+      complaint_issued = true;
+    }

   warning_issued = true;
   warning_issued = true;

-  putc ('\n', stderr);
-  fflush (stderr);

 }
 }

-\f
-/*-----------------------------------------------------------.
-| An error has occurred, but we can proceed, and die later.  |
-`-----------------------------------------------------------*/

 
 void
 
 void

-complain_at (location_t location, const char *message, ...)
+warn_at (location loc, const char *message, ...)

 {
 {

-  va_list args;
+  set_warning_issued ();
+  ERROR_MESSAGE (&loc, _("warning"), message);
+}

 
 

-  fflush (stdout);
-  LOCATION_PRINT (stderr, location);
-  fputs (": ", stderr);
+void
+warn (const char *message, ...)
+{
+  set_warning_issued ();
+  ERROR_MESSAGE (NULL, _("warning"), message);
+}

 
 

-  va_start (args, message);
-  vfprintf (stderr, message, args);
-  va_end (args);

 
 

+/*-----------------------------------------------------------.
+| An error has occurred, but we can proceed, and die later.  |
+`-----------------------------------------------------------*/
+
+void
+complain_at (location loc, const char *message, ...)
+{
+  ERROR_MESSAGE (&loc, NULL, message);

   complaint_issued = true;
   complaint_issued = true;

-  putc ('\n', stderr);
-  fflush (stderr);

 }
 
 void
 complain (const char *message, ...)
 {
 }
 
 void
 complain (const char *message, ...)
 {

-  va_list args;
-
-  fflush (stdout);
-  fprintf (stderr, "%s: ", infile ? infile : program_name);
-
-  va_start (args, message);
-  vfprintf (stderr, message, args);
-  va_end (args);
-
+  ERROR_MESSAGE (NULL, NULL, message);

   complaint_issued = true;
   complaint_issued = true;

-  putc ('\n', stderr);
-  fflush (stderr);

 }
 }

-\f
+
+

 /*-------------------------------------------------.
 | A severe error has occurred, we cannot proceed.  |
 `-------------------------------------------------*/
 
 void
 /*-------------------------------------------------.
 | A severe error has occurred, we cannot proceed.  |
 `-------------------------------------------------*/
 
 void

-fatal_at (location_t location, const char *message, ...)
+fatal_at (location loc, const char *message, ...)

 {
 {

-  va_list args;
-
-  fflush (stdout);
-  LOCATION_PRINT (stderr, location);
-  fputs (": ", stderr);
-  fputs (_("fatal error: "), stderr);
-
-  va_start (args, message);
-  vfprintf (stderr, message, args);
-  va_end (args);
-  putc ('\n', stderr);
-  fflush (stderr);
+  ERROR_MESSAGE (&loc, _("fatal error"), message);

   exit (EXIT_FAILURE);
 }
 
 void
 fatal (const char *message, ...)
 {
   exit (EXIT_FAILURE);
 }
 
 void
 fatal (const char *message, ...)
 {

-  va_list args;
-
-  fflush (stdout);
-  fprintf (stderr, "%s: ", infile ? infile : program_name);
-
-  fputs (_("fatal error: "), stderr);
-
-  va_start (args, message);
-  vfprintf (stderr, message, args);
-  va_end (args);
-  putc ('\n', stderr);
-  fflush (stderr);
+  ERROR_MESSAGE (NULL, _("fatal error"), message);

   exit (EXIT_FAILURE);
 }
   exit (EXIT_FAILURE);
 }