Canonical Combining Class - CCC118

CCC118 is a specific numeric value assigned to certain characters, indicating a high level of canonical combining class, which dictates how diacritical marks and other combining characters attach to their base characters during text normalization and rendering. A CCC of 118 places a mark in a particular stacking position, typically used for Vietnamese tone marks or similar complex script elements, ensuring they are ordered correctly relative to other combining signs. This value prevents reordering during canonical decomposition, preserving the intended visual and semantic sequence. In practice, CCC118 helps maintain consistent behavior across platforms when processing accented letters, as the higher number signals that the mark should sit closer to the base character than many other diacritics.