/*=================================================================
   Copyright (C) 2000 2013 BizStation Corp All rights reserved.

   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 2
   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, write to the Free Software 
   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  
   02111-1307, USA.
=================================================================*/
#include<bzs/env/tstring.h>
#pragma hdrstop

#include "strtrim.h"

#pragma package(smart_init)

namespace bzs
{
namespace rtl
{

char* strtrimA(char* str)
{ //trim right space
	if (str == NULL)
		return NULL;
	int k = (int)strlen(str) - 1; 

	for(; k >= 0; --k)
	{
		if (str[k] == 0x20)
			str[k] = 0x00;
		else
			break;
	}
	return str;
}

wchar_t*  wcstrim(wchar_t* str)
{
    //trim right space
	if (str == NULL)
		return NULL;
	int k = (int)wcslen(str) - 1;

	for(; k >= 0; k--)
	{
		if (str[k] == 0x20)
			str[k] = 0x00;
		else
			break;
	}
	return str;
}

char* strltrimA(char* str)
{ //trim left space
	if (str == NULL)
		return NULL;

	size_t i;
	char* point = NULL;
	size_t len = strlen(str);
	for(i = 0; i < len; i++)
	{
		if (str[i] == 0x20)
			point = str + i + 1;
		else
			break;
	}
	if (point)
		memmove(str, point, len - i + 1);
	return str;
}

wchar_t* wcsltrim(wchar_t* str)
{ //trim left space
	if (str == NULL)
		return NULL;

	size_t i;
	wchar_t* point = NULL;
	size_t len = wcslen(str); 
	for(i = 0; i < len; i++)
	{
		if (str[i] == 0x20)
			point = str + i + 1;
		else
			break;
	}
	if (point)
		memmove(str, point, (len - i + 1)*sizeof(wchar_t));
	return str;
}

#ifdef _UNICODE
int wcslen_a(wchar_t* str)
{ //How meny charctors of multibyte charctor.
	int retVale = 0;
	size_t len = wcslen(str);
	if (len)
	{
		LPWORD charType = new WORD[len + 1];
		if (GetStringTypeEx(LOCALE_USER_DEFAULT, CT_CTYPE3 , str, -1, charType))
		{
			for (size_t i=0;i<len;i++)
			{   //If Zenkaku_katakana or Hiragana then return not Zenkaku. Kanji is C3_IDEOGRAPH.
				if (!(charType[i] & C3_HALFWIDTH) 
					&& ( (charType[i] & C3_KATAKANA) 
						|| (charType[i] & C3_HIRAGANA) 
						|| (charType[i] & C3_FULLWIDTH) 
						|| (charType[i] & C3_IDEOGRAPH) 
						|| (charType[i] & C3_SYMBOL)))
					retVale += 2;
				else
					retVale += 1;
			}
		}
		delete []charType;
	}
	return retVale;
}
#endif

}//namespace rtl
}//namespace bzs