ezc/src/var.cpp

/*
 * This file is a part of EZC -- Easy templating in C++ library
 * and is distributed under the BSD 3-Clause licence.
 * Author: Tomasz Sowa <t.sowa@ttmath.org>
 */

/*
 * Copyright (c) 2021, Tomasz Sowa
 * 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 Tomasz Sowa nor the names of contributors to this
 *    project 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.
 */

#include "var.h"
#include "utf8/utf8.h"


namespace Ezc
{


Var::Var()
{
	clear();
}

void Var::clear()
{
	//res = false;
	//is_function = false;

	type = TYPE_VOID;
	model = nullptr;
	model_container_wrapper = nullptr;
	date = nullptr;
	space_wrapper = nullptr;
	space_local.clear();
	stream.clear();
}



bool Var::to_bool() const
{
	switch(type)
	{
	case TYPE_VOID:
		return false;

	case TYPE_BOOL:
		return space_local.to_bool();

	case TYPE_STRING:
		return to_bool_str();
	}

	return false;
}


bool Var::to_bool_str() const
{
	if( space_local.is_str() )
		return !space_local.get_str()->empty();
	else
	if( space_local.is_wstr() )
		return !space_local.get_wstr()->empty();

	return false;
}



void Var::set(bool val)
{
	type = TYPE_BOOL;
	space_local.set(val);
}


void Var::set(const char * str)
{
	type = TYPE_STRING;
	space_local.set(str);
}


void Var::set(const wchar_t * str)
{
	type = TYPE_STRING;
	space_local.set(str);
}


void Var::set(const std::string & str)
{
	type = TYPE_STRING;
	space_local.set(str);
}


void Var::set(const std::wstring & str)
{
	type = TYPE_STRING;
	space_local.set(str);
}


void Var::set_function(const std::wstring & str)
{
	type = TYPE_FUNCTION;
	space_local.set(str);
}



bool Var::is_equal(const char * str) const
{
	switch(type)
	{
	case TYPE_BOOL:
		return is_equal_bool(str);

	case TYPE_STRING:
		return is_equal_string(str);
	}

	return false;
}


bool Var::is_equal(const wchar_t * str) const
{
	switch(type)
	{
	case TYPE_BOOL:
		return is_equal_bool(str);

	case TYPE_STRING:
		return is_equal_string(str);
	}

	return false;
}


bool Var::is_equal(const std::string & str) const
{
	return is_equal(str.c_str());
}


bool Var::is_equal(const std::wstring & str) const
{
	return is_equal(str.c_str());
}


bool Var::is_equal_bool(const char * str) const
{
	if( space_local.to_bool() )
	{
		return str[0] != 0;
	}
	else
	{
		return str[0] == 0;
	}
}


bool Var::is_equal_string(const char * str) const
{
	if( space_local.is_str() )
	{
		return space_local.is_equal(str);
	}
	else
	if( space_local.is_wstr() )
	{
		std::string space_str_utf8;
		pt::wide_to_utf8(*space_local.get_wstr(), space_str_utf8);
		return space_str_utf8 == str;
	}

	return false;
}



bool Var::is_equal_bool(const wchar_t * str) const
{
	if( space_local.to_bool() )
	{
		return str[0] != 0;
	}
	else
	{
		return str[0] == 0;
	}
}


bool Var::is_equal_string(const wchar_t * str) const
{
	if( space_local.is_wstr() )
	{
		return space_local.is_equal(str);
	}
	else
	if( space_local.is_str() )
	{
		std::string str_utf8;
		pt::wide_to_utf8(str, str_utf8);
		return space_local.is_equal(str_utf8);
	}

	return false;
}


void Var::serialize_to(pt::WTextStream & str)
{
	switch(type)
	{
	case TYPE_BOOL:
	case TYPE_LONG:
	case TYPE_STRING:
		space_local.serialize_to_string(str);
		break;
	case TYPE_STREAM:
		str = stream;
		break;
	}
}



Var & Var::operator<<(const char * str)
{
	type == TYPE_STREAM;
	stream << str;
	return *this;
}


Var & Var::operator<<(const wchar_t * str)
{
	type == TYPE_STREAM;
	stream << str;
	return *this;
}


Var & Var::operator<<(const std::string & str)
{
	type == TYPE_STREAM;
	stream << str;
	return *this;
}


Var & Var::operator<<(const std::wstring & str)
{
	type == TYPE_STREAM;
	stream << str;
	return *this;
}





}