X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/342b8b6e2156e923797745af2da2596e3086ccd5..4654b0c0a8a355e7a8fcdf51b1a5eb6c485126f1:/src/complain.c diff --git a/src/complain.c b/src/complain.c index 620e726c..2c26c4e4 100644 --- a/src/complain.c +++ b/src/complain.c @@ -1,10 +1,12 @@ /* Declaration for error-reporting function for Bison. - Copyright 2000 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 - Free Software Foundation; either version 2, or (at your option) any - later version. + 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 Free Software Foundation, either version 3 of the License, or + (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of @@ -12,298 +14,126 @@ GNU General Public License for more details. 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, - USA. */ + along with this program. If not, see . */ /* Based on error.c and error.h, written by David MacKenzie . */ +#include #include "system.h" -#if HAVE_VPRINTF || HAVE_DOPRNT || _LIBC -# ifdef __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 - -#if STDC_HEADERS || _LIBC -# include -# include -#else -void exit (); -#endif +#include #include "complain.h" +#include "files.h" +#include "getargs.h" -#ifndef HAVE_DECL_STRERROR_R -"this configure-time declaration test was not run" -#endif -#if !HAVE_DECL_STRERROR_R -char *strerror_r (); -#endif - -#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 +bool complaint_issued; -/* 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 -# 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; + -# ifdef HAVE_STRERROR_R -# define __strerror_r strerror_r -# else -# if HAVE_STRERROR -# ifndef strerror /* On some systems, strerror is a macro */ -char *strerror (); -# endif -# else -static char * -private_strerror (errnum) - int errnum; +/** 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 +error_message (location *loc, + const char *prefix, + const char *message, va_list args) { - extern char *sys_errlist[]; - extern int sys_nerr; + if (loc) + location_print (stderr, *loc); + else + fputs (current_file ? current_file : program_name, stderr); + fputs (": ", stderr); + + if (prefix) + fprintf (stderr, "%s: ", prefix); - if (errnum > 0 && errnum <= sys_nerr) - return _(sys_errlist[errnum]); - return _("Unknown system error"); + vfprintf (stderr, message, args); + va_end (args); + putc ('\n', stderr); + fflush (stderr); } -# define strerror private_strerror -# endif /* HAVE_STRERROR */ -# endif /* HAVE_STRERROR_R */ -#endif /* not _LIBC */ -/* This variable is incremented each time `warn' is called. */ -unsigned int warn_message_count; +/** 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); \ +} -/* This variable is incremented each time `complain' is called. */ -unsigned int complain_message_count; -/* 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. | `--------------------------------*/ -void -#if defined VA_START && defined __STDC__ -warn (const char *message, ...) -#else -warn (message, va_alist) - char *message; - va_dcl -#endif +static void +set_warning_issued (void) { -#ifdef VA_START - va_list args; -#endif - - if (error_one_per_line) + static bool warning_issued = false; + if (!warning_issued && (warnings_flag & warnings_error)) { - 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; + fprintf (stderr, "%s: warnings being treated as errors\n", program_name); + complaint_issued = true; } + warning_issued = true; +} - fflush (stdout); - if (infile != NULL) - fprintf (stderr, "%s:%d: ", infile, lineno); - else - fprintf (stderr, "%s:", program_name); +void +warn_at (location loc, const char *message, ...) +{ + set_warning_issued (); + ERROR_MESSAGE (&loc, _("warning"), message); +} - fputs (_("warning: "), stderr); +void +warn (const char *message, ...) +{ + set_warning_issued (); + ERROR_MESSAGE (NULL, _("warning"), message); +} -#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 && defined __STDC__ -complain (const char *message, ...) -#else -complain (message, va_alist) - char *message; - va_dcl -#endif +complain_at (location loc, const char *message, ...) { -#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; - } + ERROR_MESSAGE (&loc, NULL, message); + complaint_issued = true; +} - fflush (stdout); - if (infile != NULL) - fprintf (stderr, "%s:%d: ", infile, lineno); - else - fprintf (stderr, "%s:", program_name); +void +complain (const char *message, ...) +{ + ERROR_MESSAGE (NULL, NULL, message); + complaint_issued = true; +} -#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 - ++complain_message_count; - putc ('\n', stderr); - fflush (stderr); -} - /*-------------------------------------------------. | A severe error has occurred, we cannot proceed. | `-------------------------------------------------*/ void -#if defined VA_START && defined __STDC__ -fatal (const char *message, ...) -#else -fatal (message, va_alist) - char *message; - va_dcl -#endif +fatal_at (location loc, const char *message, ...) { -#ifdef VA_START - va_list args; -#endif - - fflush (stdout); - if (infile != NULL) - fprintf (stderr, "%s:%d: ", infile, lineno); - else - fprintf (stderr, "%s:", program_name); - - fputs (_("fatal error: "), stderr); - -#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); + ERROR_MESSAGE (&loc, _("fatal error"), message); + exit (EXIT_FAILURE); } - -/*------------------------------------------------------------------. -| 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 && defined __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 +fatal (const char *message, ...) { -#ifdef VA_START - va_list args; -#endif - - fflush (stdout); - if (infile != NULL) - fprintf (stderr, "%s:%d: ", infile, lineno); - else - fprintf (stderr, "%s:", program_name); - - fputs (_("fatal error: "), stderr); - -#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 - - 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); + ERROR_MESSAGE (NULL, _("fatal error"), message); + exit (EXIT_FAILURE); }