Changes between Version 3 and Version 4 of PythonChallenge3da

PythonChallenge3da

v3	v4
84	84	char lastlet;
85	85	}}}
86		'~~current' will hold actually computed 'hash' (bitmask), and 'lastlet' will hold latest letter 'in the middle~~'.
	86	''current'' will hold actually computed ''hash'' (bitmask), and ''lastlet'' will hold latest letter ''in the middle''.
87	87
88	88	{{{
91	91	current <<= 2, current \|= getcase(letter);
92	92	}}}
93		Precompute '~~hash~~' for first 8 characters, by simply shifting our variable by two bits, and adding the proper bits.
	93	Precompute ''hash'' for first 8 characters, by simply shifting our variable by two bits, and adding the proper bits.
94	94
95		Later process the rest of the line, remembering current '~~middle letter~~'. Because in our hash we represent every letter as two bits we need to binary-and only the last 18 bits, that's what 0x3ffff is there for.
	95	Later process the rest of the line, remembering current ''middle letter''. Because in our hash we represent every letter as two bits we need to binary-and only the last 18 bits, that's what 0x3ffff is there for.