#include "cmd.h"




namespace parser
{
	static void command_line_to_arguments(const char* cmdl, std::vector<std::string>& args)
	{
		while(*cmdl)
		{
			const char* h = cmdl;
			while(*h == ' ' || *h == '\t')
				h++;
			if(*h == 0)
				break;
			
			cmdl = h;
			if(*h == '\"')
			{
				cmdl++;
				h++;
				while(*h)
				{
					if(*h == '\"')
						break;
					if(*h == '\\')
						h++;
					h++;
				}
			}
			else
			{
				while(*h)
				{
					if(*h == ' ' || *h == '\t')
						break;
					h++;
				}
			}
			if(h > cmdl)
				args.push_back(std::string(cmdl, h - cmdl));
			else if(*h == '\"')
				args.push_back("");
			
			if(*h == 0)
				break;

			cmdl = h + 1;
		}
	}
}




cmd_line::cmd_line()
{}
cmd_line::~cmd_line()
{}

cmd_line* cmd_line::from_console(const char* tips)
{
	std::string in("");
	char		ch = 0;

	if(!tips || *tips == 0)
		tips = "input";

	printf("%s%s>%s", CONSOLE_COLOR_FRONT_BLUE, tips, CONSOLE_COLOR_NONE);
	while((ch = getchar()) != '\n')
		in.append(1, ch);

	return cmd_line::from_command_line(in.c_str());
}
cmd_line* cmd_line::from_command_line(const char* cmdl)
{
	cmd_line* cmd = new cmd_line();

	cmd->cmd_line_ = cmdl;
	parser::command_line_to_arguments(cmdl, cmd->arguments_);

	return cmd;
}

size_t cmd_line::count(void)
{
	return arguments_.size();
}
const char* cmd_line::parameter(int ind)
{
	if(ind >= 0 && ind < arguments_.size())
		return arguments_[ind].c_str();
	else
		return nullptr;
}
const char* cmd_line::parameter(const char* key)
{
	for(int i = 0; i < arguments_.size() - 1; ++i)
	{
		if(arguments_[i] == key)
			return arguments_[i + 1].c_str();
	}

	return nullptr;
}