Function fxAdvanceStringIndex

xs/sources/xsRegExp.c:101–117

#if mxRegExp
txNumber fxAdvanceStringIndex(txMachine* the, txString string, txNumber index, txBoolean unicodeFlag)
{
#if mxCESU8
	if (unicodeFlag) {
		txInteger character;
		txSize offset = fxCacheUnicodeLength(the, string);
		if (index >= offset)
			return index + 1;
		offset = fxCacheUnicodeToUTF8Offset(the, string, (txInteger)index);
		offset = mxPtrDiff(mxStringByteDecode(string + offset, &character) - string);
		if (character == C_EOF)
			return index + 1;
		return fxCacheUTF8ToUnicodeOffset(the, string, offset);
	}
#endif
	return index + 1;
}

txSlot* fxCheckRegExpInstance(txMachine* the, txSlot* slot)
{