#include <string.h>
#include "fun.h"

#ifndef NULL
#define NULL 0
#endif

fun::fun()
: name(NULL), numParams(0), params(NULL), numToks(0), toks(NULL)
{
}

fun::fun(const char* name, const unsigned int numParams, char** params, const unsigned int numToks, const token* toks)
: numParams(numParams), numToks(numToks)
{
	this->name = new char[strlen(name) + 1];
	strcpy(this->name, name);
	this->params = new char*[numParams];
	for(unsigned int i = 0; i < numParams; i++)
	{
		this->params[i] = new char[strlen(params[i]) + 1];
		strcpy(this->params[i], params[i]);
	}
	this->toks = new token[numToks];
	for(i = 0; i < numToks; i++)
		this->toks[i] = toks[i];
}

fun::fun(const fun& f2)
: numParams(f2.numParams), numToks(f2.numToks)
{
	name = new char[strlen(f2.name) + 1];
	strcpy(name, f2.name);
	params = new char*[numParams];
	for(unsigned int i = 0; i < numParams; i++)
	{
		params[i] = new char[strlen(f2.params[i]) + 1];
		strcpy(params[i], f2.params[i]);
	}
	toks = new token[numToks];
	for(i = 0; i < numToks; i++)
		toks[i] = f2.toks[i];
}

fun::~fun()
{
	delete[] name;
	for(unsigned int i = 0; i < numParams; i++)
		delete[] params[i];
	delete[] params;
	delete[] toks;
}

const fun& fun::operator =(const fun& f2)
{
	if(this != &f2)
	{
		delete[] name;
		for(unsigned int i = 0; i < numParams; i++)
			delete[] params[i];
		delete[] params;
		delete[] toks;
		name = new char[strlen(f2.name) + 1];
		strcpy(name, f2.name);
		numParams = f2.numParams;
		params = new char*[numParams];
		for(i = 0; i < numParams; i++)
		{
			params[i] = new char[strlen(f2.params[i]) + 1];
			strcpy(params[i], f2.params[i]);
		}
		numToks = f2.numToks;
		toks = new token[numToks];
		for(i = 0; i < numToks; i++)
			toks[i] = f2.toks[i];
	}

	return *this;
}