X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/2cec9080f685192e231333686b411fb524239a1b..0fe9720964da510a2b359af390a3053aace65f9f:/src/complain.c diff --git a/src/complain.c b/src/complain.c index 927dbb63..984b1361 100644 --- a/src/complain.c +++ b/src/complain.c @@ -1,11 +1,12 @@ /* Declaration for error-reporting function for Bison. - Copyright (C) 2000, 2001, 2002, 2004, 2005 Free Software Foundation, Inc. + 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 2, or (at your option) any - later version. + 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 @@ -13,9 +14,7 @@ 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, - USA. */ + along with this program. If not, see <http://www.gnu.org/licenses/>. */ /* Based on error.c and error.h, written by David MacKenzie <djm@gnu.ai.mit.edu>. */ @@ -24,124 +23,169 @@ #include "system.h" #include <stdarg.h> +#include <progname.h> #include "complain.h" #include "files.h" +#include "getargs.h" -/* The calling program should define program_name and set it to the - name of the executing program. */ -extern char *program_name; +warnings warnings_flag = + Wconflicts_sr | Wconflicts_rr | Wdeprecated | Wother; -/* This variable is set each time `warn' is called. */ -bool warning_issued; +warnings errors_flag; -/* This variable is set each time `complain' is called. */ -bool complaint_issued; - - -/*--------------------------------. -| Report a warning, and proceed. | -`--------------------------------*/ +err_status complaint_status = status_none; +static unsigned *indent_ptr = 0; void -warn_at (location loc, const char *message, ...) +warnings_print_categories (warnings warn_flags) { - va_list args; - - location_print (stderr, loc); - fputs (": ", stderr); - fputs (_("warning: "), stderr); - - va_start (args, message); - vfprintf (stderr, message, args); - va_end (args); - - warning_issued = true; - putc ('\n', stderr); + if (! (warn_flags & silent)) + { + 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, "]"); + } } +/** 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 -warn (const char *message, ...) +error_message (const location *loc, warnings flags, const char *prefix, + const char *message, va_list args) { - va_list args; + unsigned pos = 0; + + if (loc) + pos += location_print (stderr, *loc); + else + pos += fprintf (stderr, "%s", current_file ? current_file : program_name); + pos += fprintf (stderr, ": "); + + 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; + } + + if (prefix) + fprintf (stderr, "%s: ", prefix); - fprintf (stderr, "%s: %s", current_file ? current_file : program_name, _("warning: ")); - - va_start (args, message); vfprintf (stderr, message, args); - va_end (args); - - warning_issued = true; - 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); } - -/*-----------------------------------------------------------. -| An error has occurred, but we can proceed, and die later. | -`-----------------------------------------------------------*/ -void -complain_at (location loc, const char *message, ...) +/** 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) { - va_list args; - - location_print (stderr, loc); - fputs (": ", stderr); - - va_start (args, message); - vfprintf (stderr, message, args); - va_end (args); - - complaint_issued = true; - putc ('\n', stderr); + 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 -complain (const char *message, ...) +complain (location const *loc, warnings flags, const char *message, ...) { va_list args; - - fprintf (stderr, "%s: ", current_file ? current_file : program_name); - va_start (args, message); - vfprintf (stderr, message, args); + complains (loc, flags, message, args); va_end (args); - - complaint_issued = true; - putc ('\n', stderr); } - -/*-------------------------------------------------. -| A severe error has occurred, we cannot proceed. | -`-------------------------------------------------*/ void -fatal_at (location loc, const char *message, ...) +complain_indent (location const *loc, warnings flags, unsigned *indent, + const char *message, ...) { va_list args; - - location_print (stderr, loc); - fputs (": ", stderr); - fputs (_("fatal error: "), stderr); - + indent_ptr = indent; va_start (args, message); - vfprintf (stderr, message, args); + complains (loc, flags, message, args); va_end (args); - putc ('\n', stderr); - exit (EXIT_FAILURE); } void -fatal (const char *message, ...) +complain_args (location const *loc, warnings w, unsigned *indent, + int argc, char *argv[]) { - va_list args; - - fprintf (stderr, "%s: ", current_file ? current_file : program_name); - - fputs (_("fatal error: "), stderr); - - va_start (args, message); - vfprintf (stderr, message, args); - va_end (args); - putc ('\n', stderr); - exit (EXIT_FAILURE); + 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; + } }