In the online 4.0 book, chapter 15 http://www.unicode.org/versions/Unicode4.0.0/ch15.pdf
the definition for Word Joiner says: > Until Unicode 3.1.1, U+FEFF was the only code point with word > joining semantics, but because it is more commonly used as > byte order mark, the use of U+2060 [word joiner] to indicate > word joining is strongly preferred for any new text. However, a couple of paragraphs up, the definition for No-Break Space says: > U+00A0 [No-Break Space] behaves like the following coded > character sequence: U+FEFF [Zero Width No-Break Space] + > U+0020 [Space] + U+FEFF [Zero Width No-Break Space]. Is this something that has slipped by the editors? Or am I missing something? Pim Blokland

