/***********************************************************************

*                                                                      *

*               This software is part of the ast package               *

*          Copyright (c) 1985-2011 AT&T Intellectual Property          *

*                      and is licensed under the                       *

*                 Eclipse Public License, Version 1.0                  *

*                    by AT&T Intellectual Property                     *

*                                                                      *

*                A copy of the License is available at                 *

*          http://www.eclipse.org/org/documents/epl-v10.html           *

*         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *

*                                                                      *

*              Information and Software Systems Research               *

*                            AT&T Research                             *

*                           Florham Park NJ                            *

*                                                                      *

*                 Glenn Fowler <gsf@research.att.com>                  *

*                  David Korn <dgk@research.att.com>                   *

*                   Phong Vo <kpv@research.att.com>                    *

*                                                                      *

***********************************************************************/

#pragma prototyped

/*

 * standalone mini error implementation

 */

#include <ast.h>

#include <error.h>

Error_info_t	error_info;

void

errorv(const char* id, int level, va_list ap)

{

	char*	a;

	char*	s;

	int	flags;

	if (level < 0)

		flags = 0;

	else

	{

		flags = level & ~ERROR_LEVEL;

		level &= ERROR_LEVEL;

	}

	a = va_arg(ap, char*);

	if (level && ((s = error_info.id) || (s = (char*)id)))

	{

		if (!(flags & ERROR_USAGE))

			sfprintf(sfstderr, "%s: ", s);

		else if (strcmp(a, "%s"))

			sfprintf(sfstderr, "Usage: %s ", s);

	}

	if (flags & ERROR_USAGE)

		/*nop*/;

	else if (level < 0)

		sfprintf(sfstderr, "debug%d: ", level);

	else if (level)

	{

		if (level == ERROR_WARNING)

		{

			sfprintf(sfstderr, "warning: ");

			error_info.warnings++;

		}

		else

		{

			error_info.errors++;

			if (level == ERROR_PANIC)

				sfprintf(sfstderr, "panic: ");

		}

		if (error_info.line)

		{

			if (error_info.file && *error_info.file)

				sfprintf(sfstderr, "\"%s\", ", error_info.file);

			sfprintf(sfstderr, "line %d: ", error_info.line);

		}

	}

	sfvprintf(sfstderr, a, ap);

	sfprintf(sfstderr, "\n");

	if (level >= ERROR_FATAL)

		exit(level - ERROR_FATAL + 1);

}

void

error(int level, ...)

{

	va_list	ap;

	va_start(ap, level);

	errorv(NiL, level, ap);

	va_end(ap);

}

int

errorf(void* handle, void* discipline, int level, ...)

{

	va_list	ap;

	va_start(ap, level);

	errorv((discipline && handle) ? *((char**)handle) : (char*)handle, level, ap);

	va_end(ap);

	return 0;

}