// StrFilterBase.cpp: implementation of the CStrFilter class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "StrFilter.h"

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

CStrFilter::CStrFilter()
{
}

CStrFilter::~CStrFilter()
{
}
const CStrFilter & CStrFilter::operator=(CStrFilter & str)
{
	Format( "%s", str );

	m_markID = m_markID;
	m_reLeft = str.m_reLeft;
	m_reRight= str.m_reRight;
	m_markIDArray.Copy( str.m_markIDArray );
	m_markStrArray.Copy( str.m_markStrArray );

	return *this;
}

const CString & CStrFilter::operator=(CString & str)
{
	Format( "%s", str );
	return *this;
}

const CString & CStrFilter::operator = (const char * str)
{
	Format( "%s", str );
	return *this;
}

void CStrFilter::AddMark(const char * mark, UINT id)
{
	m_markStrArray.Add( mark );
	m_markIDArray.Add( id );
}

void CStrFilter::RemoveAllMark()
{
	m_markStrArray.RemoveAll();
	m_markIDArray.RemoveAll();
}

BOOL CStrFilter::Separate()
{
int i;
int size = m_markStrArray.GetSize();
	for( i = 0; i < size; i++ )
	{
		if( Separate( m_markStrArray[i] ) )
		{//已找到標(biāo)志并成功分離出字串
			m_markID = m_markIDArray[i];
			return TRUE;
		}
	}
	return FALSE;
}

BOOL CStrFilter::Separate(char mark)
{
int i;
	i = Find( mark );
	if( i < 0 )
	{
		return FALSE;
	}

	if( i == 0 )
	{
		m_reLeft.Empty();
	}
	else
	{
		m_reLeft = Left( i );
	}

	i = GetLength() - i - 1;
	if( i <= 0 )
	{
		m_reRight.Empty();
	}
	else
	{
		m_reRight = Right( i );
	}
	return TRUE;
}

BOOL CStrFilter::Separate(const char * mark)
{
int i;
	i = Find( mark );
	if( i < 0 )
	{
		return FALSE;
	}

	if( i == 0 )
	{
		m_reLeft.Empty();
	}
	else
	{
		m_reLeft = Left( i );
	}

	i = GetLength() - i - strlen( mark );
	if( i <= 0 )
	{
		m_reRight.Empty();
	}
	else
	{
		m_reRight = Right( i );
	}
	return TRUE;
}

BOOL CStrFilter::SeparateAll(char mark, CStringArray & strArray)
{
BOOL re = FALSE;
	while( Separate( mark ) )
	{
		if( !m_reLeft.IsEmpty() )
		{
			strArray.Add( m_reLeft );
		}
		*this = m_reRight;
		re = TRUE;
	}
	if( !m_reRight.IsEmpty() )
	{
		strArray.Add( m_reRight );
	}
	return re;
}

BOOL CStrFilter::SeparateAll( const char * mark, CStringArray & strArray)
{
BOOL re = FALSE;
	while( Separate( mark ) )
	{
		if( !m_reLeft.IsEmpty() )
		{
			strArray.Add( m_reLeft );
		}
		*this = m_reRight;
		re = TRUE;
	}
	if( !m_reRight.IsEmpty() )
	{
		strArray.Add( m_reRight );
	}
	return re;
}

//過濾%AA形式的HEX字符，指接在str中修改
BOOL CStrFilter::ConvertURLHex()
{
char * str = GetBuffer( GetLength() );//取得本字串的地址

//pS0:源串指針 pS1:新串指針
char * pS0, *pS1;
char hex1, hex2;
int re = 0;
int i;

	pS0 = pS1 = str;
	while( 1 )
	{
		//復(fù)制非HEX編碼的字串，直到碰到% or 0，跳出循環(huán)后pS0指向% or 0
		for( i = 0; ; i++ )
		{
			if( pS0[i] == '%' || pS0[i] == '\0' )
			{
				if( i > 0 )
				{
					memcpy( pS1, pS0, i );
					pS0 += i;
					pS1 += i;
				}
				break;
			}
		}

		if( *pS0 == '\0' )
		{
			break;
		}

		//此時(shí)pS0指向形如%AA的HEX編碼
		pS0++;	//使pS0指向第一個(gè)HEX編碼
		hex1 = *(pS0++);	//第一個(gè)HEX
		hex2 = *(pS0++);	//第二個(gè)HEX

		if( hex1 >= '0' && hex1 <= '9' )
		{
			hex1 = hex1 - '0';
		}
		else
		{//字符
			hex1 &= ~0x20;//強(qiáng)制為大寫
			if( hex1 >= 'A' && hex1 <= 'F' )
			{
				hex1 = (hex1 - 'A') + 10;
			}
			else
			{//錯(cuò)誤編碼的標(biāo)志
				hex1 = 17;
			}
		}
		if( hex2 >= '0' && hex2 <= '9' )
		{
			hex2 = hex2 - '0';
		}
		else
		{
			hex2 &= ~0x20;//強(qiáng)制為大寫
			if( hex2 >= 'A' && hex2 <= 'F' )
			{
				hex2 = (hex2 - 'A') + 10;
			}
			else
			{//錯(cuò)誤編碼的標(biāo)志
				hex2 = 17;
			}
		}

		if( hex1 == 17 || hex2 == 17 )
		{//非法編碼，設(shè)置返回標(biāo)志，原樣復(fù)制
			re = 1;
			memcpy( pS1, pS0-3, 3 );
			pS1 += 3;
		}
		else
		{//解碼HEX
			*(pS1++) = (hex1<<4) + hex2;
		}
	}
	
	*(pS1) = '\0';

	ReleaseBuffer();

	return (re == 0);
}