UTF8Encoder Class Reference

#include <Charset.h>

Inheritance diagram for UTF8Encoder:

Protected Member Functions
virtual int	toMultiByte (ucs4_t _uc, byte_t *_mbs, size_t _mbslen)
Protected Member Functions inherited from CharsetEncoder
	CharsetEncoder ()
Protected Member Functions inherited from Object
virtual	~Object ()
	Object ()

Additional Inherited Members
Public Member Functions inherited from Object
virtual String	toString () const
virtual void	destroy ()
String	className () const
bool	isInstanceOf (const std::type_info &typeinfo) const
virtual const std::type_info &	typeInfo () const

Detailed Description

Definition at line 132 of file Charset.h.

Member Function Documentation

toMultiByte()

int UTF8Encoder::toMultiByte ( ucs4_t _uc, byte_t * _mbs, size_t _mbslen )

protectedvirtual

Implements CharsetEncoder.

Definition at line 243 of file CharsetEncoder.cpp.

{
    int count;
    if (_uc < 0x80)
        count = 1;
    else if (_uc < 0x800)
        count = 2;
    else if (_uc < 0x10000)
        count = 3;
    else if (_uc < 0x200000)
        count = 4;
    else if (_uc < 0x4000000)
        count = 5;
    else if (_uc <= 0x7fffffff)
        count = 6;
    else
        return ILLEGAL_UCS4;
 
    if (_mbslen < (size_t)count)
        return BUFFER_SMALL;
 
    switch (count) { /* note: code falls through cases! */
        case 6: _mbs[5] = 0x80 | (_uc & 0x3f); _uc = _uc >> 6; _uc |= 0x4000000;
        case 5: _mbs[4] = 0x80 | (_uc & 0x3f); _uc = _uc >> 6; _uc |= 0x200000;
        case 4: _mbs[3] = 0x80 | (_uc & 0x3f); _uc = _uc >> 6; _uc |= 0x10000;
        case 3: _mbs[2] = 0x80 | (_uc & 0x3f); _uc = _uc >> 6; _uc |= 0x800;
        case 2: _mbs[1] = 0x80 | (_uc & 0x3f); _uc = _uc >> 6; _uc |= 0xc0;
        case 1: _mbs[0] = _uc;
    }
    return count;
}

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The documentation for this class was generated from the following files:

• Charset.h
• CharsetEncoder.cpp