Q:

How do I find out which language some Unicode characters belong to?

On Facebook, there are currently messages floating around with these strange chars: 

ก็็็็็็็็็็็็็็็็็็็็ กิิิิิิิิิิิิิิิิิิิิ ก้้้้้้้้้้้้้้้้้้้

They are used to confuse the reader, because they break out of the designated text areas.
Do they really belong to a language? If so, which one?

A:

They are Thai characters with long strings of combining diacritic marks after base characters. You do quite similar things with Latin letters, too, e.g. â̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂̂ (which is a with circumflex followed by several combining circumflexes). Or you could use a sequence of combining horns: ư̛̛̛̛̛̛̛̛̛̛̛̛̛̛̛̛̛̛ or cedillas: ç̧̧̧̧̧̧̧̧̧̧̧̧̧̧̧̧̧̧̧̧̧̧̧̧̧̧̧̧̧̧̧. It naturally depends on rendering software how the contrived sequences will be displayed.

