mirror of
https://github.com/wiidev/usbloadergx.git
synced 2024-11-05 02:55:07 +01:00
9e79c9d99b
* code cleanup
170 lines
4.2 KiB
C++
170 lines
4.2 KiB
C++
#include <wctype.h>
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#include "wstring.hpp"
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using namespace std;
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wString::wString( const wchar_t *s ) :
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std::basic_string<wchar_t, std::char_traits<wchar_t>, std::allocator<wchar_t> >( s )
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{
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}
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wString::wString( const basic_string<wchar_t, char_traits<wchar_t>, allocator<wchar_t> > &ws ) :
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basic_string<wchar_t, char_traits<wchar_t>, allocator<wchar_t> >( ws )
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{
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}
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wString::wString( const string &s )
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{
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std::string::size_type size;
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size = s.size();
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resize( size );
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for ( std::string::size_type i = 0; i < size; ++i )
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( *this )[i] = ( unsigned char )s[i];
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}
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wString &wString::operator=( const string & s )
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{
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std::string::size_type size;
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size = s.size();
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this->resize( size );
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for ( std::string::size_type i = 0; i < size; ++i )
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( *this )[i] = ( unsigned char )s[i];
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return *this;
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}
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void wString::fromUTF8( const char *s )
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{
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size_t len = utf8Len( s );
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clear();
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if ( len == 0 )
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return;
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reserve( len );
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for ( int i = 0; s[i] != 0; )
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{
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if ( ( s[i] & 0xF8 ) == 0xF0 )
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{
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push_back( ( ( wchar_t )( s[i] & 0x07 ) << 18 ) | ( ( wchar_t )( s[i + 1] & 0x3F ) << 12 ) | ( ( wchar_t )( s[i + 2] & 0x3F ) << 6 ) | ( wchar_t )( s[i + 3] & 0x3F ) );
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i += 4;
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}
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else if ( ( s[i] & 0xF0 ) == 0xE0 )
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{
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push_back( ( ( wchar_t )( s[i] & 0x0F ) << 12 ) | ( ( wchar_t )( s[i + 1] & 0x3F ) << 6 ) | ( wchar_t )( s[i + 2] & 0x3F ) );
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i += 3;
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}
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else if ( ( s[i] & 0xE0 ) == 0xC0 )
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{
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push_back( ( ( wchar_t )( s[i] & 0x1F ) << 6 ) | ( wchar_t )( s[i + 1] & 0x3F ) );
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i += 2;
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}
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else
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{
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push_back( ( wchar_t )s[i] );
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++i;
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}
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}
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}
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string wString::toUTF8( void ) const
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{
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string s;
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size_t len = 0;
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wchar_t wc;
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for ( size_t i = 0; i < size(); ++i )
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{
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wc = operator[]( i );
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if ( wc < 0x80 )
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++len;
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else if ( wc < 0x800 )
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len += 2;
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else if ( wc < 0x10000 )
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len += 3;
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else
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len += 4;
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}
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s.reserve( len );
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for ( size_t i = 0; i < size(); ++i )
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{
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wc = operator[]( i );
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if ( wc < 0x80 )
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s.push_back( ( char )wc );
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else if ( wc < 0x800 )
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{
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s.push_back( ( char )( ( wc >> 6 ) | 0xC0 ) );
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s.push_back( ( char )( ( wc & 0x3F ) | 0x80 ) );
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}
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else if ( wc < 0x10000 )
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{
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s.push_back( ( char )( ( wc >> 12 ) | 0xE0 ) );
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s.push_back( ( char )( ( ( wc >> 6 ) & 0x3F ) | 0x80 ) );
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s.push_back( ( char )( ( wc & 0x3F ) | 0x80 ) );
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}
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else
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{
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s.push_back( ( char )( ( ( wc >> 18 ) & 0x07 ) | 0xF0 ) );
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s.push_back( ( char )( ( ( wc >> 12 ) & 0x3F ) | 0x80 ) );
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s.push_back( ( char )( ( ( wc >> 6 ) & 0x3F ) | 0x80 ) );
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s.push_back( ( char )( ( wc & 0x3F ) | 0x80 ) );
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}
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}
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return s;
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}
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size_t utf8Len( const char *s )
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{
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size_t len = 0;
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for ( int i = 0; s[i] != 0; )
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{
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if ( ( s[i] & 0xF8 ) == 0xF0 )
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{
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if ( ( ( s[i + 1] & 0xC0 ) != 0x80 ) || ( ( s[i + 2] & 0xC0 ) != 0x80 ) || ( ( s[i + 3] & 0xC0 ) != 0x80 ) )
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return 0;
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++len;
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i += 4;
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}
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else if ( ( s[i] & 0xF0 ) == 0xE0 )
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{
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if ( ( ( s[i + 1] & 0xC0 ) != 0x80 ) || ( ( s[i + 2] & 0xC0 ) != 0x80 ) )
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return 0;
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++len;
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i += 3;
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}
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else if ( ( s[i] & 0xE0 ) == 0xC0 )
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{
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if ( ( ( s[i + 1] & 0xC0 ) != 0x80 ) )
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return 0;
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++len;
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i += 2;
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}
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else if ( ( s[i] & 0x80 ) == 0x00 )
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{
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++len;
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++i;
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}
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else
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return 0;
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}
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return len;
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}
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int wcsnicmp( const wchar_t *s1, const wchar_t *s2, int len )
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{
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if ( len <= 0 )
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return ( 0 );
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do
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{
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int r = towupper( *s1 ) - towupper( *s2++ );
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if ( r ) return r;
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if ( *s1++ == 0 )
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break;
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}
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while ( --len != 0 );
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return ( 0 );
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}
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