pub unsafe fn uregex_setFindProgressCallback(
regexp: *mut URegularExpression,
callback: Option<URegexFindProgressCallback>,
context: *const c_void,
status: *mut UErrorCode,
)pub unsafe fn uregex_setFindProgressCallback(
regexp: *mut URegularExpression,
callback: Option<URegexFindProgressCallback>,
context: *const c_void,
status: *mut UErrorCode,
)