[big5-enc-ascii.html]
  [big5 encoder: test for ASCII codepoint 0x9 \t]
    expected: FAIL

  [big5 encoder: test for ASCII codepoint 0xa \n]
    expected: FAIL

  [big5 encoder: test for ASCII codepoint 0xd \r]
    expected: FAIL

  [big5 encoder: test for ASCII codepoint 0x23 #]
    expected: FAIL