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/*
* Copyright (c) 2003 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __CPRINTF_HH__
#define __CPRINTF_HH__
#include <iostream>
#include <list>
#include <sstream>
#include <string>
namespace cp {
#include "base/cprintf_formats.hh"
class ArgList
{
private:
class Base
{
public:
virtual ~Base() {}
virtual void process(std::ostream &out, Format &fmt) = 0;
};
template <typename T>
class Node : public Base
{
public:
const T &data;
public:
Node(const T &d) : data(d) {}
virtual void process(std::ostream &out, Format &fmt) {
switch (fmt.format) {
case Format::character:
format_char(out, data, fmt);
break;
case Format::integer:
format_integer(out, data, fmt);
break;
case Format::floating:
format_float(out, data, fmt);
break;
case Format::string:
format_string(out, data, fmt);
break;
default:
out << "<bad format>";
break;
}
}
};
typedef std::list<Base *> list_t;
protected:
list_t objects;
std::ostream *stream;
public:
ArgList() : stream(&std::cout) {}
~ArgList();
template<class T>
void append(const T &data) {
Base *obj = new ArgList::Node<T>(data);
objects.push_back(obj);
}
template<class T>
void prepend(const T &data) {
Base *obj = new ArgList::Node<T>(data);
objects.push_front(obj);
}
void dump(const std::string &format);
void dump(std::ostream &strm, const std::string &fmt)
{ stream = &strm; dump(fmt); }
std::string dumpToString(const std::string &format);
friend ArgList &operator<<(std::ostream &str, ArgList &list);
};
template<class T>
inline ArgList &
operator,(ArgList &alist, const T &data)
{
alist.append(data);
return alist;
}
class ArgListNull {
};
inline ArgList &
operator,(ArgList &alist, ArgListNull)
{ return alist; }
//
// cprintf(format, args, ...) prints to cout
// (analogous to printf())
//
inline void
__cprintf(const std::string &format, ArgList &args)
{ args.dump(format); delete &args; }
#define __cprintf__(format, args...) \
cp::__cprintf(format, (*(new cp::ArgList), args))
#define cprintf(args...) \
__cprintf__(args, cp::ArgListNull())
//
// ccprintf(stream, format, args, ...) prints to the specified stream
// (analogous to fprintf())
//
inline void
__ccprintf(std::ostream &stream, const std::string &format, ArgList &args)
{ args.dump(stream, format); delete &args; }
#define __ccprintf__(stream, format, args...) \
cp::__ccprintf(stream, format, (*(new cp::ArgList), args))
#define ccprintf(stream, args...) \
__ccprintf__(stream, args, cp::ArgListNull())
//
// csprintf(format, args, ...) returns a string
// (roughly analogous to sprintf())
//
inline std::string
__csprintf(const std::string &format, ArgList &args)
{ std::string s = args.dumpToString(format); delete &args; return s; }
#define __csprintf__(format, args...) \
cp::__csprintf(format, (*(new cp::ArgList), args))
#define csprintf(args...) \
__csprintf__(args, cp::ArgListNull())
template<class T>
inline ArgList &
operator<<(ArgList &list, const T &data)
{
list.append(data);
return list;
}
inline ArgList &
operator<<(std::ostream &str, ArgList &list)
{
list.stream = &str;
return list;
}
class ArgListTemp
{
private:
std::string format;
ArgList *args;
public:
ArgListTemp(const std::string &f) : format(f) { args = new ArgList; }
~ArgListTemp() { args->dump(format); delete args; }
operator ArgList *() { return args; }
};
#define cformat(format) \
(*((cp::ArgList *)cp::ArgListTemp(format)))
}
#endif // __CPRINTF_HH__
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