Topic summary
Compatibility character
Extracted from the Wikipedia article Unicode compatibility characters.
Compatibility character types and keywords
The compatibility decomposition property for the 5,402 Unicode compatibility characters includes a keyword that divides the compatibility characters into 17 logical groups. Those characters with a compatibility decomposition but without a keyword are termed canonically decomposable characters and those characters are not compatibility characters. Keywords for compatibility decomposable characters include: initial, medial, final, isolated, wide, narrow, small, square, vertical, circle, noBreak, fraction, sub, super, and compat. These keywords provide some indication of the relation between the compatibility character and its compatibility decomposition character sequence. Compatibility characters fall into three basic categories: