| LineBreakProperties | Struct for entries of line break properties | 
| LineBreakPropertiesIndex | Struct for the second-level index to the line breaking properties | 
| LineBreakPropertiesLang | Struct for association of language-specific line breaking properties with language names | 
| WordBreakProperties | Struct for entries of word break properties | 
 1.6.2
 1.6.2