X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/8f13fe33b766c69b10674558003d070aea5da1f2..0fe9720964da510a2b359af390a3053aace65f9f:/src/complain.c diff --git a/src/complain.c b/src/complain.c index b25f0b29..984b1361 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) 2000-2002, 2004-2006, 2009-2012 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 @@ -12,302 +14,178 @@ 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 . */ -#ifdef HAVE_CONFIG_H -# include -#endif - -#include +#include +#include "system.h" -#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 - -#if STDC_HEADERS || _LIBC -# include -# include -#else -void exit (); -#endif +#include +#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 - -/* 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; -{ - 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 /* HAVE_STRERROR_R */ -#endif /* not _LIBC */ - -/* This variable is incremented each time `warn' is called. */ -unsigned int warn_message_count; +warnings warnings_flag = + Wconflicts_sr | Wconflicts_rr | Wdeprecated | Wother; -/* This variable is incremented each time `complain' is called. */ -unsigned int complain_message_count; +warnings errors_flag; -/* 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. | -`--------------------------------*/ +err_status complaint_status = status_none; +static unsigned *indent_ptr = 0; void -#if defined VA_START && __STDC__ -warn (const char *message, ...) -#else -warn (message, va_alist) - char *message; - va_dcl -#endif +warnings_print_categories (warnings warn_flags) { -#ifdef VA_START - va_list args; -#endif - - if (error_one_per_line) + if (! (warn_flags & silent)) { - 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; + char const *warn_names[] = + { + "midrule-values", + "yacc", + "conflicts-sr", + "conflicts-rr", + "deprecated", + "other" + }; + + bool any = false; + int i; + for (i = 0; i < ARRAY_CARDINALITY (warn_names); ++i) + if (warn_flags & 1 << i) + { + bool err = warn_flags & errors_flag; + fprintf (stderr, "%s-W", any ? ", " : " ["); + fprintf (stderr, "%s%s", err ? "error=" : "" , warn_names[i]); + any = true; + } + if (any) + fprintf (stderr, "]"); } - - fflush (stdout); - if (infile != NULL) - fprintf (stderr, "%s:%d: ", infile, lineno); - else - fprintf (stderr, "%s:", program_name); - - fputs (_("warning: "), 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 - - ++warn_message_count; - putc ('\n', stderr); - fflush (stderr); } - -/*-----------------------------------------------------------. -| An error has occurred, but we can proceed, and die later. | -`-----------------------------------------------------------*/ +/** Report an error message. + * + * \param loc the location, defaulting to the current file, + * or the program name. + * \param flags the category for this message. + * \param prefix put before the message (e.g., "warning"). + * \param message the error message, a printf format string. Iff it + * ends with ": ", then no trailing newline is printed, + * and the caller should print the remaining + * newline-terminated message to stderr. + * \param args the arguments of the format string. + */ +static void -#if defined VA_START && __STDC__ -complain (const char *message, ...) -#else -complain (message, va_alist) - char *message; - va_dcl -#endif +error_message (const location *loc, warnings flags, const char *prefix, + const char *message, va_list args) { -#ifdef VA_START - va_list args; -#endif + unsigned pos = 0; - 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; + if (loc) + pos += location_print (stderr, *loc); + else + pos += fprintf (stderr, "%s", current_file ? current_file : program_name); + pos += fprintf (stderr, ": "); - old_infile = infile; - old_lineno = lineno; + if (indent_ptr) + { + if (*indent_ptr) + prefix = NULL; + if (!*indent_ptr) + *indent_ptr = pos; + else if (*indent_ptr > pos) + fprintf (stderr, "%*s", *indent_ptr - pos, ""); + indent_ptr = 0; } - fflush (stdout); - if (infile != NULL) - fprintf (stderr, "%s:%d: ", infile, lineno); - else - fprintf (stderr, "%s:", program_name); + 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 - - ++complain_message_count; - putc ('\n', stderr); + warnings_print_categories (flags); + { + size_t l = strlen (message); + if (l < 2 || message[l - 2] != ':' || message[l - 1] != ' ') + { + putc ('\n', stderr); + fflush (stderr); + if (loc && feature_flag & feature_caret && !(flags & no_caret)) + location_caret (stderr, *loc); + } + } fflush (stderr); } - -/*-------------------------------------------------. -| A severe error has occurred, we cannot proceed. | -`-------------------------------------------------*/ + +/** Raise a complaint. That can be a fatal error, a complaint or just a + warning. */ +static inline void +complains (const location *loc, warnings flags, const char *message, + va_list args) +{ + const char* prefix = + flags & fatal ? _("fatal error") + : flags & (errors_flag | complaint) ? _("error") + : _("warning"); + + if ((flags & complaint) && complaint_status < status_complaint) + complaint_status = status_complaint; + else if ((flags & (warnings_flag & errors_flag)) && ! complaint_status) + complaint_status = status_warning_as_error; + if (flags & (warnings_flag | fatal | complaint)) + error_message (loc, flags, prefix, message, args); + if (flags & fatal) + exit (EXIT_FAILURE); +} void -#if defined VA_START && __STDC__ -fatal (const char *message, ...) -#else -fatal (message, va_alist) - char *message; - va_dcl -#endif +complain (location const *loc, warnings flags, 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_start (args, message); + complains (loc, flags, 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); } - -/*------------------------------------------------------------------. -| 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_indent (location const *loc, warnings flags, unsigned *indent, + 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); + indent_ptr = indent; + va_start (args, message); + complains (loc, flags, 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); +void +complain_args (location const *loc, warnings w, unsigned *indent, + int argc, char *argv[]) +{ + switch (argc) + { + case 1: + complain_indent (loc, w, indent, "%s", _(argv[0])); + break; + case 2: + complain_indent (loc, w, indent, _(argv[0]), argv[1]); + break; + case 3: + complain_indent (loc, w, indent, _(argv[0]), argv[1], argv[2]); + break; + case 4: + complain_indent (loc, w, indent, _(argv[0]), argv[1], argv[2], argv[3]); + break; + case 5: + complain_indent (loc, w, indent, _(argv[0]), argv[1], argv[2], argv[3], + argv[4]); + break; + default: + complain (loc, fatal, "too many arguments for complains"); + break; + } }