Philippe Verdy wrote: > (1) a singleton (example the AngstrÃm symbol, canonically > mapped to A with diaeresis,
The ÃngstrÃm (note spelling) sign is canonically mapped to capital a with ring. There are several meanings of "compatibility characters". The most important here are the characters that have a compatibility decomposition mapping. For details, see UTR 20: http://www.unicode.org/reports/tr20/. > And the "oe ligature" has only a compatiblity decomposition, > and then is not a compatibility character. The oe ligature characters have no decomposition at all. > > Is somewhere a complete chart of "compatibility characters" ? > > Look at the Unicode data file which lists composition exclusions... Which is unrelated to the question posed! See UTR 20 instead. /kent k
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