Arthur Reutenauer wrote: > there is a concept in Unicode, that of grapheme cluster > (http://unicode.org/glossary/#grapheme_cluster)
I am intrigued to know why Unicode defines a grapheme cluster in terms of a /horizontally/ segmentable unit of text : > A grapheme cluster represents a horizontally segmentable unit of text, Why not, I wonder, just a /segmentable/ unit of text; are there no grapheme clusters in vertically-written languages ? Philip Taylor
