In TUS, in http://www.unicode.org/versions/Unicode6.1.0/ch03.pdf
D56 Combining character sequence: A maximal character sequence consisting of either a base character followed by a sequence of one or more characters where each is a combining character, zero width joiner, or zero width non-joiner; or a sequence of one or more characters where each is a combining character, zero width joiner, or zero width non-joiner. ... So 'a' is the base character for the acute. The clauses with zwj/nj are really designed for Indic and similar scripts. The rendering isn't specified for other cases, but where the zwj/nj are not defined to have an effect, they should* be ignored for normal rendering. That being said, this is such an edge case that I don't think the 'should' is enough to jump through hoops for. ------------------------------ Mark <https://plus.google.com/114199149796022210033> * * *— Il meglio è l’inimico del bene —* ** On Mon, Feb 27, 2012 at 09:37, Eric Mader <ema...@icu-project.org> wrote: > Hello, > > I searched the list archives and didn't find anything that addressed this > exact issue. If I see a sequence like a + ZWNJ + ACUTE, should it be > rendered as a followed by an acute accent over a dotted circle, or should > it be rendered as A-ACUTE? > > (The actual case I hit was in Devanagari, but it seems to me that the > question applies to all scripts with non-spacing marks) > > Regards, > Eric Mader > > >