Hi Mark,
the use of DOT BELOW and LINE BELOW is in fact consistent in German Duden. The
difference in the diacritics is used to denote length of the stressed vowel, DOT BELOW
denotes a short vowel and LINE BELOW denotes a long vowel.
Diphthongs are always long and there is a single line under the whole Diphthong.
Digraphs (e.g. the "ou" in words borrowed from French) also have either a single line
under the whole digraph or (this happens rarely) a single dot in the middle of the
digraph.
--Jörg Knappen
Gesendet: Donnerstag, 16. April 2015 um 10:01 Uhr
Von: "Mark Davis ☕️" <mark@macchiato.com>
An: "Unicode Public" <unicode@unicode.org>, "Unicode Book" <book@unicode.org>
Betreff: Combining character example
I happened to run across a good example of productive use of combining marks, the Duden site (a great online dictionary for German). They use U+0323 ( ̣) COMBINING DOT BELOW to indicate the stress. Here is an example:
ụnterbuttern
They aren't, however, consistent; you also see underlining for stress.
- e̲i̲nschränken
But not, interestingly, with the HTML underline, but with U+0332 ( ̲ ) COMBINING LOW LINE.