Adds all simple case mappings and the full case folding for c to builder.
Also adds special case closure mappings.
See the Rust documentation for add_case_closure_to for more information.
Finds all characters and strings which may casemap to s as their full case folding string
and adds them to the set.
Returns true if the string was found
See the Rust documentation for add_string_case_closure_to for more information.
StaticcreateConstruct a new CaseMapCloser instance using a particular data source.
See the Rust documentation for new for more information.
See the Rust documentation for
CaseMapCloserfor more information.