Hello, am 2013-10-20 um 21:32 Uhr schrieb Asmus Freytag:
A typical convention is the "show special characters" in many editors.
Or in special fonts, such as CombiChar <http://eta.ktl.mii.lt/~mask/varia/KoDi-07/Inf_mokslai/Tumasonis/CombiChar.ttf>, probably by Vladas Tumasonis.
Incidentally, the dotted circle shown in the Unicode Code charts is *not* 25CC, and if I were to implement a "show dotted circle" feature in a program I would not use 25CC for this - that character has a standard glyph of rather unsuitable metrics for the purpose, never mind that many people have co-opted it.
I have written a tutorial (in German) that discusses character entry, and typographical conventions, for virttually all European languages; therein, I have to display many diacritikal marks over dotted circles. I reckon, this problem is not specific to my work. I have tried two approaches, viz. applying the respective diacritica to U+25CC, and formatting diacritical marks with the CombiChar font, respectively. I am not happy with either, but currently apply the latter, throughout. As Asmus already has said, U+25CC does not look quite right. On the other hand, the CombChar font – in order to fulfil its purpose – necessarily violates D56 of TUS. So what should a poor author do according to TUS, when he wishes to discuss diacritical marks and their associated keystrokes? D52 says about the combining characters:
These characters are not normally used in isolation unless they are being described.
But how can they be described within the framework of Unicode? Bemused, Otto Stolz
