/*****************************************************************************
* ustring.cpp
*****************************************************************************
* Copyright (C) 2003 the VideoLAN team
*
* Authors: Cyril Deguet <asmax@via.ecp.fr>
* Olivier Teulière <ipkiss@via.ecp.fr>
*
* 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#include <sstream>
#include "ustring.hpp"
const uint32_t UString::npos = 0xffffffff;
UString::UString( const UString &rOther ): SkinObject( rOther.getIntf() )
{
m_length = rOther.m_length;
m_pString = new uint32_t[m_length + 1];
memcpy( m_pString, rOther.m_pString, 4 * m_length + 4);
}
UString::UString( intf_thread_t *pIntf, const char *pString ):
SkinObject( pIntf )
{
// First we compute the length of the string
const char *pCur = pString;
for( m_length = 0; pCur && *pCur; m_length++ )
{
if( (*pCur & 0xfc) == 0xfc )
{
pCur += 6;
}
else if ( (*pCur & 0xf8 ) == 0xf8 )
{
pCur += 5;
}
else if ( (*pCur & 0xf0 ) == 0xf0 )
{
pCur += 4;
}
else if ( (*pCur & 0xe0 ) == 0xe0 )
{
pCur += 3;
}
else if ( (*pCur & 0xc0 ) == 0xc0 )
{
pCur += 2;
}
else
{
pCur++;
}
}
if( !pCur || *pCur )
{
msg_Err( pIntf, "invalid UTF8 string: %s", pString ? pString : "nil" );
m_length = 0;
m_pString = NULL;
return;
}
m_pString = new uint32_t[m_length + 1];
// Convert the UTF8 string into UNICODE
pCur = pString;
uint32_t aChar = 0; // current unicode character
int remaining = 0; // remaining bytes
for( uint32_t i = 0; i <= m_length; i++ )
{
if( (*pCur & 0xfc) == 0xfc )
{
aChar = *pCur & 1;
remaining = 5;
}
else if ( (*pCur & 0xf8 ) == 0xf8 )
{
aChar = *pCur & 3;
remaining = 4;
}
else if ( (*pCur & 0xf0 ) == 0xf0 )
{
aChar = *pCur & 7;
remaining = 3;
}
else if ( (*pCur & 0xe0 ) == 0xe0 )
{
aChar = *pCur & 15;
remaining = 2;
}
else if ( (*pCur & 0xc0 ) == 0xc0 )
{
aChar = *pCur & 31;
remaining = 1;
}
else
{
aChar = *pCur;
remaining = 0;
}
while( remaining )
{
pCur++;
remaining--;
aChar = ( aChar << 6 ) | ( *pCur & 0x3f );
}
m_pString[i] = aChar;
pCur++;
}
m_pString[m_length] = 0;
}
UString::~UString()
{
delete[] m_pString;
}
bool UString::operator ==( const UString &rOther ) const
{
if( size() != rOther.size() )
{
return false;
}
for( uint32_t i = 0; i < size(); i++ )
{
if( m_pString[i] != rOther.m_pString[i] )
{
return false;
}
}
return true;
}
bool UString::operator !=( const UString &rOther ) const
{
return !(*this == rOther);
}
bool UString::operator <( const UString &rOther ) const
{
const uint32_t *pOther = rOther.u_str();
uint32_t i;
for( i = 0; i < __MIN(m_length, rOther.length()); i++ )
{
if( m_pString[i] < pOther[i] )
{
return true;
}
else if( m_pString[i] > pOther[i] )
{
return false;
}
}
return( m_pString[i] < pOther[i] );
}
bool UString::operator <=( const UString &rOther ) const
{
return !( rOther < *this );
}
bool UString::operator >( const UString &rOther ) const
{
return ( rOther < *this );
}
bool UString::operator >=( const UString &rOther ) const
{
return !( *this < rOther );
}
UString& UString::operator =( const UString &rOther )
{
if( this == &rOther )
return *this;
m_length = rOther.m_length;
delete[] m_pString;
m_pString = new uint32_t[size() + 1];
for( uint32_t i = 0; i <= size(); i++ )
{
m_pString[i] = rOther.m_pString[i];
}
return *this;
}
UString& UString::operator +=( const UString &rOther )
{
if( this == &rOther )
return *this;
int tempLength = this->length() + rOther.length();
uint32_t *pTempString = new uint32_t[tempLength + 1];
// Copy the first string
memcpy( pTempString, this->m_pString, sizeof(uint32_t) * this->size() );
// Append the second string
// memcpy( pTempString + 4 * size(), rOther.m_pString,
// 4 * rOther.size() );
for( uint32_t i = 0; i < rOther.size(); i++ )
{
pTempString[this->size() + i] = rOther.m_pString[i];
}
pTempString[tempLength] = 0;
// Set the string internally
delete[] m_pString;
m_pString = pTempString;
m_length = tempLength;
return *this;
}
const UString UString::operator +( const UString &rOther ) const
{
UString result( *this );
result += rOther;
return result;
}
const UString UString::operator +( const char *pString ) const
{
UString temp( getIntf(), pString );
return (*this + temp );
}
uint32_t UString::find( const UString &str, uint32_t position ) const
{
uint32_t pos;
for( pos = position; pos + str.size() <= size(); pos++ )
{
bool match = true;
for( uint32_t i = 0; i < str.size(); i++ )
{
if( m_pString[pos + i] != str.m_pString[i] )
{
match = false;
break;
}
}
// Found
if( match )
{
return pos;
}
}
// Not found
return npos;
}
uint32_t UString::find( const char *pString, uint32_t position ) const
{
UString tmp( getIntf(), pString );
return find( tmp, position );
}
void UString::replace( uint32_t position, uint32_t n1, const UString &str )
{
UString start( substr( 0, position ) );
UString end( substr( position + n1 ) );
*this = start + str + end;
}
void UString::replace( uint32_t position, uint32_t n1, const char *pString )
{
replace( position, n1, UString( getIntf(), pString ) );
}
UString UString::substr( uint32_t position, uint32_t n) const
{
UString tmp( getIntf(), "" );
if( position > size() )
{
msg_Err( getIntf(), "invalid position in UString::substr()" );
return tmp;
}
tmp.m_length = (n < size() - position) ? n : size() - position;
delete[] tmp.m_pString;
tmp.m_pString = new uint32_t[tmp.size() + 1];
for( uint32_t i = 0; i < tmp.size(); i++ )
{
tmp.m_pString[i] = m_pString[position + i];
}
return tmp;
}
UString UString::fromInt( intf_thread_t *pIntf, int number)
{
std::stringstream ss;
ss << number;
return UString( pIntf, ss.str().c_str() );
}
¤ Dauer der Verarbeitung: 0.6 Sekunden
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*© Formatika GbR, Deutschland