private boolean isMacHFSPath()

in org.eclipse.jgit/src/org/eclipse/jgit/lib/ObjectChecker.java [853:923]
70 lines of code
29 McCabe index (conditional complexity)

	private boolean isMacHFSPath(byte[] raw, int ptr, int end, byte[] path,
			@Nullable AnyObjectId id) throws CorruptObjectException {
		boolean ignorable = false;
		int g = 0;
		while (ptr < end) {
			switch (raw[ptr]) {
			case (byte) 0xe2: // http://www.utf8-chartable.de/unicode-utf8-table.pl?start=8192
				if (!checkTruncatedIgnorableUTF8(raw, ptr, end, id)) {
					return false;
				}
				switch (raw[ptr + 1]) {
				case (byte) 0x80:
					switch (raw[ptr + 2]) {
					case (byte) 0x8c:	// U+200C 0xe2808c ZERO WIDTH NON-JOINER
					case (byte) 0x8d:	// U+200D 0xe2808d ZERO WIDTH JOINER
					case (byte) 0x8e:	// U+200E 0xe2808e LEFT-TO-RIGHT MARK
					case (byte) 0x8f:	// U+200F 0xe2808f RIGHT-TO-LEFT MARK
					case (byte) 0xaa:	// U+202A 0xe280aa LEFT-TO-RIGHT EMBEDDING
					case (byte) 0xab:	// U+202B 0xe280ab RIGHT-TO-LEFT EMBEDDING
					case (byte) 0xac:	// U+202C 0xe280ac POP DIRECTIONAL FORMATTING
					case (byte) 0xad:	// U+202D 0xe280ad LEFT-TO-RIGHT OVERRIDE
					case (byte) 0xae:	// U+202E 0xe280ae RIGHT-TO-LEFT OVERRIDE
						ignorable = true;
						ptr += 3;
						continue;
					default:
						return false;
					}
				case (byte) 0x81:
					switch (raw[ptr + 2]) {
					case (byte) 0xaa:	// U+206A 0xe281aa INHIBIT SYMMETRIC SWAPPING
					case (byte) 0xab:	// U+206B 0xe281ab ACTIVATE SYMMETRIC SWAPPING
					case (byte) 0xac:	// U+206C 0xe281ac INHIBIT ARABIC FORM SHAPING
					case (byte) 0xad:	// U+206D 0xe281ad ACTIVATE ARABIC FORM SHAPING
					case (byte) 0xae:	// U+206E 0xe281ae NATIONAL DIGIT SHAPES
					case (byte) 0xaf:	// U+206F 0xe281af NOMINAL DIGIT SHAPES
						ignorable = true;
						ptr += 3;
						continue;
					default:
						return false;
					}
				default:
					return false;
				}
			case (byte) 0xef: // http://www.utf8-chartable.de/unicode-utf8-table.pl?start=65024
				if (!checkTruncatedIgnorableUTF8(raw, ptr, end, id)) {
					return false;
				}
				// U+FEFF 0xefbbbf ZERO WIDTH NO-BREAK SPACE
				if ((raw[ptr + 1] == (byte) 0xbb)
						&& (raw[ptr + 2] == (byte) 0xbf)) {
					ignorable = true;
					ptr += 3;
					continue;
				}
				return false;
			default:
				if (g == path.length) {
					return false;
				}
				if (toLower(raw[ptr++]) != path[g++]) {
					return false;
				}
			}
		}
		if (g == path.length && ignorable) {
			return true;
		}
		return false;
	}