public static String fromEscapedUnicode()

in wicket-util/src/main/java/org/apache/wicket/util/string/Strings.java [439:525]
85 lines of code
31 McCabe index (conditional complexity)

	public static String fromEscapedUnicode(final String escapedUnicodeString)
	{
		int off = 0;
		char[] in = escapedUnicodeString.toCharArray();
		int len = in.length;
		char[] out = new char[len];
		char aChar;
		int outLen = 0;
		int end = off + len;

		while (off < end)
		{
			aChar = in[off++];
			if (aChar == '\\')
			{
				aChar = in[off++];
				if (aChar == 'u')
				{
					// Read the xxxx
					int value = 0;
					for (int i = 0; i < 4; i++)
					{
						aChar = in[off++];
						switch (aChar)
						{
							case '0' :
							case '1' :
							case '2' :
							case '3' :
							case '4' :
							case '5' :
							case '6' :
							case '7' :
							case '8' :
							case '9' :
								value = (value << 4) + aChar - '0';
								break;
							case 'a' :
							case 'b' :
							case 'c' :
							case 'd' :
							case 'e' :
							case 'f' :
								value = (value << 4) + 10 + aChar - 'a';
								break;
							case 'A' :
							case 'B' :
							case 'C' :
							case 'D' :
							case 'E' :
							case 'F' :
								value = (value << 4) + 10 + aChar - 'A';
								break;
							default :
								throw new IllegalArgumentException("Malformed \\uxxxx encoding.");
						}
					}
					out[outLen++] = (char)value;
				}
				else
				{
					if (aChar == 't')
					{
						aChar = '\t';
					}
					else if (aChar == 'r')
					{
						aChar = '\r';
					}
					else if (aChar == 'n')
					{
						aChar = '\n';
					}
					else if (aChar == 'f')
					{
						aChar = '\f';
					}
					out[outLen++] = aChar;
				}
			}
			else
			{
				out[outLen++] = aChar;
			}
		}
		return new String(out, 0, outLen);
	}