public BomInput()

in src/main/java/com/univocity/parsers/common/input/BomInput.java [51:91]

38 lines of code
15 McCabe index (conditional complexity)


	public BomInput(InputStream input) {
		this.input = input;

		try { //This looks shitty on purpose (all in the name of speed).
			if ((bytes[0] = next()) == 0xEF) {
				if ((bytes[1] = next()) == 0xBB) {
					if ((bytes[2] = next()) == 0xBF) {
						setEncoding("UTF-8");
					}
				}
			} else if (bytes[0] == 0xFE) {
				if ((bytes[1] = next()) == 0xFF) {
					setEncoding("UTF-16BE");
				}
			} else if (bytes[0] == 0xFF) {
				if ((bytes[1] = next()) == 0xFE) {
					if ((bytes[2] = next()) == 0x00) {
						if ((bytes[3] = next()) == 0x00) {
							setEncoding("UTF-32LE");
						} else {
							setEncoding("UTF-16LE"); //gotcha!
						}
					} else {
						setEncoding("UTF-16LE"); //gotcha!
					}
				}
			} else if (bytes[0] == 0x00) {
				if ((bytes[1] = next()) == 0x00) {
					if ((bytes[2] = next()) == 0xFE) {
						if ((bytes[3] = next()) == 0xFF) {
							setEncoding("UTF-32BE");
						}
					}
				}
			}
		} catch (IOException e) {
			// store the exception for later. We want the wrapper to behave exactly like the original input stream and
			// might need to return any bytes read before this blew up.
			exception = e;
		}
	}