ICU_chain_step_type_casemap, // apply utf16 charmap
ICU_chain_step_type_normalize, // apply utf16 normalization
ICU_chain_step_type_tokenize // apply utf16 tokenization
ICU_chain_step_type_casemap, // apply utf16 charmap
ICU_chain_step_type_normalize, // apply utf16 normalization
ICU_chain_step_type_tokenize // apply utf16 tokenization