X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/4a120d45e6a181ced2f24f2f6d23e2faa9fbd778..21fe08cadcb84fddd5038ac6857a904dbe1ad885:/src/complain.c diff --git a/src/complain.c b/src/complain.c index 04b82ad0..f3cd0ec1 100644 --- a/src/complain.c +++ b/src/complain.c @@ -1,5 +1,7 @@ /* 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 @@ -13,257 +15,116 @@ 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 . */ -#ifdef HAVE_CONFIG_H -# include -#endif - -#include - -#if HAVE_VPRINTF || HAVE_DOPRNT || _LIBC -# if __STDC__ -# include -# define VA_START(args, lastarg) va_start(args, lastarg) -# else -# include -# 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 +#include "system.h" -#if STDC_HEADERS || _LIBC -# include -# include -#else -void exit (); -#endif +#include #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; -/*--------------------------------. -| 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); } - -/*-----------------------------------------------------------. -| 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); } - -/*-------------------------------------------------. -| 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; } - -/*------------------------------------------------------------------. -| 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); }