Thank you, Mark. This helps to clarify things, but still doesn't explicitly answer my question of how to encode "a sentence like "In this language the diacritic ^ may appear above the letters ...", but instead of ^ I want to use a combining character" and want to display exactly one space before the combining character - do I encode two spaces or one?
In this language the diacritic ̊ may appear above the letters...
Two spaces, at least in Thunderbird Mail.
-- Curtis Clark http://www.csupomona.edu/~jcclark/ Mockingbird Font Works http://www.mockfont.com/