Grapheme Cluster Break - E Base GAZ

E Base GAZ is a special classification for the character U+FF9E, the halfwidth katakana voiced sound mark, which indicates that this character behaves as an extended base when determining where grapheme clusters break. In text processing, this value allows the mark to attach to a preceding base character, such as a halfwidth katakana, so that the combination forms a single user-perceived character unit, rather than splitting into separate clusters. It also ensures that subsequent combining marks, like the halfwidth semivoiced sound mark, can continue to be grouped with the same base, creating a cohesive cluster without unintended breaks between the base and its diacritic-like additions.