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textconsole.h

/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * 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
 * 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
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * 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.
 *
 * $URL: https://scummvm.svn.sourceforge.net/svnroot/scummvm/scummvm/tags/release-1-2-1/common/textconsole.h $
 * $Id: textconsole.h 46205 2009-11-29 21:56:10Z fingolfin $
 */

#ifndef COMMON_CONSOLE_H
#define COMMON_CONSOLE_H

#include "common/scummsys.h"

namespace Common {

/**
 * An output formatter takes a source string and 'decorates' it with
 * extra information, storing the result in a destination buffer.
 * A typical use is to (optionally) enhance the output given by
 * the error() and debug() functions with extra information on
 * the state of the active engine.
 */
typedef void (*OutputFormatter)(char *dst, const char *src, size_t dstSize);

/**
 * Set the output formatter used by error().
 */
void setErrorOutputFormatter(OutputFormatter f);


/**
 * A callback which is invoked by error() just before aborting.
 * A typical example would be a function which shows a debug
 * console and displays the given message in it.
 */
typedef void (*ErrorHandler)(const char *msg);

/**
 * Set a callback that is invoked by error() after the error
 * message has been printed, but before the application is
 * terminated.
 * This can be used to e.g. show a debugger console.
 */
void setErrorHandler(ErrorHandler handler);

}     // End of namespace Common


void NORETURN_PRE error(const char *s, ...) GCC_PRINTF(1, 2) NORETURN_POST;

#ifdef DISABLE_TEXT_CONSOLE

inline int printf(const char *s, ...) { return 0; }

inline void warning(const char *s, ...) {}

#else

/**
 * Print a warning message to the text console (stderr).
 * Automatically prepends the text "WARNING: " and appends
 * an exclamation mark and a newline.
 */
void warning(const char *s, ...) GCC_PRINTF(1, 2);

#endif


#endif

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