Function fxGetDecompositionBuffer

xs/sources/xsString.c:3457–3498

}

txInteger fxGetDecompositionBuffer(txInteger character, txInteger* buffer, txFlag compatible)
{
	txInteger count;
	txU2 *index, code, *it;
	txString data;
	if (character < 0x10000) {
		count = mxDecompositionCount0;
		index = (txU2*)gxDecompositionIndex0;
		data = (txString)gxDecompositionData0;
		code = (txU2)character;
	}
	else if (character < 0x20000) {
		count = mxDecompositionCount1;
		index = (txU2*)gxDecompositionIndex1;
		data = (txString)gxDecompositionData1;
		code = (txU2)(character & 0xFFFF);
	}
	else {
		count = mxDecompositionCount2;
		index = (txU2*)gxDecompositionIndex2;
		data = (txString)gxDecompositionData2;
		code = (txU2)(character & 0xFFFF);
	}
	it = (txU2*)c_bsearch(&code, index, (count - 1) >> 1, sizeof(txU2) << 1, fxCompareComposition);
	if (it) {
		txInteger offset = it[1];
		txString p, q;
		txInteger* r;
		if (offset & 0x8000) {
			if (!compatible)
				return 0;
			offset &= 0x7FFF;
		}
		p = data + offset;
		q = p + ((it[3] & 0x7FFF) - offset);
		r = buffer;
		while (p < q)
			p = fxUTF8Decode(p, r++);
		return mxPtrDiff(r - buffer);
	}
	return 0;
}

void fxInsertDecomposition(txMachine* the, txNormalizeBuffer* buffer, txInteger at, txInteger code)
{