Shape/Reordering characters
The shaping engine inserts a placeholder glyph (U+25CC) wherever
combining marks occur without a valid base. The character U+25CC
belongs to the class of generic bases (GB). Well-formed Buginese
character clusters are defined as follows:
Cases:
Simple non-compounding cluster: < S | Rsv | WS | O | J | WJ >
Shape/Reordering characters The shaping engine inserts a placeholder glyph (U+25CC) wherever combining marks occur without a valid base. The character U+25CC belongs to the class of generic bases (GB). Well-formed Buginese character clusters are defined as follows:
Cases:
Ex. ᨔᨗᨔᨗᨊᨗᨊ