/* Declaration for error-reporting function for Bison.
- Copyright (C) 2000-2002, 2004-2006, 2009-2010 Free Software
+ Copyright (C) 2000-2002, 2004-2006, 2009-2012 Free Software
Foundation, Inc.
This program is free software: you can redistribute it and/or modify
#include "system.h"
#include <stdarg.h>
+#include <progname.h>
#include "complain.h"
#include "files.h"
#include "getargs.h"
+warnings warnings_flag = Wconflicts_sr | Wconflicts_rr | Wother;
+
bool complaint_issued;
static unsigned *indent_ptr = 0;
-\f
+void
+warnings_print_categories (warnings warn_flags)
+{
+ if (! (warn_flags & silent))
+ {
+ char const *warn_names[] =
+ {
+ "midrule-values",
+ "yacc",
+ "conflicts-sr",
+ "conflicts-rr",
+ "other"
+ };
+
+ bool any = false;
+ int i;
+ for (i = 0; i < ARRAY_CARDINALITY (warn_names); ++i)
+ if (warn_flags & 1 << i)
+ {
+ fprintf (stderr, "%s-W%s", any ? ", " : " [", 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.
+ * \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
-error_message (location *loc,
- const char *prefix,
- const char *message, va_list args)
+error_message (const location *loc, warnings flags, const char *prefix,
+ const char *message, va_list args)
{
+ (void) flags;
unsigned pos = 0;
if (loc)
fprintf (stderr, "%s: ", prefix);
vfprintf (stderr, message, args);
- putc ('\n', stderr);
- fflush (stderr);
-}
-
-/** 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); \
- va_end (args); \
+ warnings_print_categories (flags);
+ {
+ size_t l = strlen (message);
+ if (l < 2 || message[l-2] != ':' || message[l-1] != ' ')
+ {
+ putc ('\n', stderr);
+ fflush (stderr);
+ }
+ }
}
+/** Raise a complaint. That can be a fatal error, a complaint or just a
+ warning. */
-/*--------------------------------.
-| Report a warning, and proceed. |
-`--------------------------------*/
-
-static void
-set_warning_issued (void)
+static inline void
+complains (const location *loc, warnings flags, const char *message,
+ va_list args)
{
- static bool warning_issued = false;
- if (!warning_issued && (warnings_flag & warnings_error))
+ if (flags & complaint)
{
- fprintf (stderr, "%s: warnings being treated as errors\n", program_name);
+ error_message (loc, complaint, NULL, message, args);
complaint_issued = true;
}
- warning_issued = true;
-}
-
-void
-warn_at (location loc, const char *message, ...)
-{
- set_warning_issued ();
- ERROR_MESSAGE (&loc, _("warning"), message);
-}
-
-void
-warn_at_indent (location loc, unsigned *indent,
- const char *message, ...)
-{
- set_warning_issued ();
- indent_ptr = indent;
- ERROR_MESSAGE (&loc, _("warning"), message);
+ else if (flags & fatal)
+ {
+ error_message (loc, fatal, _("fatal error"), message, args);
+ exit (EXIT_FAILURE);
+ }
+ else if (flags & Wyacc)
+ {
+ if (yacc_flag)
+ {
+ error_message (loc, flags, NULL, message, args);
+ complaint_issued = true;
+ }
+ else if (warnings_flag & Wyacc)
+ {
+ set_warning_issued ();
+ error_message (loc, flags, _("warning"), message, args);
+ }
+ }
+ else if (warnings_flag & flags)
+ {
+ set_warning_issued ();
+ error_message (loc, flags, _("warning"), message, args);
+ }
}
void
-warn (const char *message, ...)
+complain (warnings flags, const char *message, ...)
{
- set_warning_issued ();
- ERROR_MESSAGE (NULL, _("warning"), message);
+ va_list args;
+ va_start (args, message);
+ complains (NULL, flags, message, args);
+ va_end (args);
}
-
-/*-----------------------------------------------------------.
-| An error has occurred, but we can proceed, and die later. |
-`-----------------------------------------------------------*/
-
void
-complain_at (location loc, const char *message, ...)
+complain_at (location loc, warnings flags, const char *message, ...)
{
- ERROR_MESSAGE (&loc, NULL, message);
- complaint_issued = true;
+ va_list args;
+ va_start (args, message);
+ complains (&loc, flags, message, args);
+ va_end (args);
}
-void
-complain_at_indent (location loc, unsigned *indent,
- const char *message, ...)
+void complain_at_indent (location loc, warnings flags, unsigned *indent,
+ const char *message, ...)
{
indent_ptr = indent;
- ERROR_MESSAGE (&loc, NULL, message);
- complaint_issued = true;
-}
-void
-complain (const char *message, ...)
-{
- ERROR_MESSAGE (NULL, NULL, message);
- complaint_issued = true;
+ va_list args;
+ va_start (args, message);
+ complains (&loc, flags, message, args);
+ va_end (args);
}
-
-/*--------------------------------------------------------------.
-| An incompatibility with POSIX Yacc: mapped either to warn* or |
-| complain* depending on yacc_flag. |
-`--------------------------------------------------------------*/
+/*--------------------------------.
+| Report a warning, and proceed. |
+`--------------------------------*/
void
-yacc_at (location loc, const char *message, ...)
+set_warning_issued (void)
{
- if (yacc_flag)
+ static bool warning_issued = false;
+ if (!warning_issued && (warnings_flag & Werror))
{
- ERROR_MESSAGE (&loc, NULL, message);
+ fprintf (stderr, "%s: warnings being treated as errors\n", program_name);
complaint_issued = true;
}
- else if (warnings_flag & warnings_yacc)
- {
- set_warning_issued ();
- ERROR_MESSAGE (&loc, _("warning"), message);
- }
-}
-
-
-/*-------------------------------------------------.
-| A severe error has occurred, we cannot proceed. |
-`-------------------------------------------------*/
-
-void
-fatal_at (location loc, const char *message, ...)
-{
- ERROR_MESSAGE (&loc, _("fatal error"), message);
- exit (EXIT_FAILURE);
-}
-
-void
-fatal (const char *message, ...)
-{
- ERROR_MESSAGE (NULL, _("fatal error"), message);
- exit (EXIT_FAILURE);
+ warning_issued = true;
}
projects / bison.git / blobdiff