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/*************************************************************************
** Message.h **
** **
** This file is part of dvisvgm -- the DVI to SVG converter **
** Copyright (C) 2005-2011 Martin Gieseking <martin.gieseking@uos.de> **
** **
** 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 **
** 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, see <http://www.gnu.org/licenses/>. **
*************************************************************************/
#ifndef MESSAGE_H
#define MESSAGE_H
#include <algorithm>
#include <string>
#include <ostream>
#include <sstream>
#include "Terminal.h"
class Message;
class MessageStream
{
friend class Message;
public:
MessageStream () : _os(0), _nl(false) {}
MessageStream (std::ostream &os);
~MessageStream ();
template <typename T>
MessageStream& operator << (const T &obj) {
std::ostringstream oss;
oss << obj;
(*this) << oss.str();
return *this;
}
MessageStream& operator << (const char *str);
MessageStream& operator << (const char &c);
MessageStream& operator << (const std::string &str) {return (*this) << str.c_str();}
void indent (int level) {_indent = std::max(0, level*2);}
void indent (bool reset=false);
void outdent (bool all=false);
void clearline ();
protected:
void putChar (const char c, std::ostream &os);
std::ostream* os () {return _os;}
private:
std::ostream *_os;
bool _nl; ///< true if previous character was a newline
int _col; ///< current terminal column
int _indent; ///< indentation width (number of columns/characters)
};
struct Message
{
static MessageStream& mstream (bool prefix=false, int color=Terminal::DEFAULT, bool light=false);
static MessageStream& estream (bool prefix=false);
static MessageStream& wstream (bool prefix=false);
enum {ERRORS=1, WARNINGS=2, MESSAGES=4};
static int LEVEL;
static bool COLORIZE;
};
#endif
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