+/** \brief returns token as it relates to originl text
+ \param chain ICU chain
+ \param start offset in original text
+ \param len number of uchars in original text
+*/
+YAZ_EXPORT void icu_chain_get_org_info(yaz_icu_chain_t chain,
+ size_t *start, size_t *len);
+
+/** \brief ICU tokenizer iterator type (opaque) */
+typedef struct icu_iter *yaz_icu_iter_t;
+
+/** \brief create ICU tokenizer iterator from chain
+ \param chain ICU chain
+ \returns ICU iterator
+*/
+YAZ_EXPORT
+yaz_icu_iter_t icu_iter_create(struct icu_chain *chain);
+
+/** \brief starts iteration over string
+ \param iter ICU tokenizer iterator
+ \param src8cstr input string (0-terminated)
+
+ Call icu_iter_next to iterate over each token.
+*/
+YAZ_EXPORT
+void icu_iter_first(yaz_icu_iter_t iter, const char *src8cstr);
+
+/** \brief iterates over one token
+ \param iter ICU tokenizer iterator
+ \retval 0 no more tokens (EOF)
+ \retval 1 got one token (use icu_iter_get..-functions)
+*/
+YAZ_EXPORT
+int icu_iter_next(yaz_icu_iter_t iter);
+
+/** \brief destroy ICU tokenizer iterator
+ \param iter ICU tokenizer iterator
+*/
+YAZ_EXPORT
+void icu_iter_destroy(yaz_icu_iter_t iter);
+
+/** \brief returns ICU normalized token
+ \param iter ICU tokenizer iterator
+ \returns string (0-terminated)
+*/
+YAZ_EXPORT
+const char *icu_iter_get_norm(yaz_icu_iter_t iter);
+
+/** \brief returns ICU sortkey string
+ \param iter ICU tokenizer iterator
+ \returns string (0-terminated)
+*/
+YAZ_EXPORT
+const char *icu_iter_get_sortkey(yaz_icu_iter_t iter);
+
+/** \brief returns ICU display string
+ \param iter ICU tokenizer iterator
+ \returns string (0-terminated)
+*/
+YAZ_EXPORT
+const char *icu_iter_get_display(yaz_icu_iter_t iter);
+
+/** \brief returns ICU token count for iterator
+ \param iter ICU tokenizer iterator
+ \returns token count (1, 2, 3...)
+*/
+YAZ_EXPORT
+int icu_iter_get_token_number(yaz_icu_iter_t iter);
+
+/** \brief returns ICU original token start (offset) and length
+ \param iter ICU tokenizer iterator
+ \param start offset of last token in original text
+ \param len length of last token in original text
+*/
+YAZ_EXPORT
+void icu_iter_get_org_info(yaz_icu_iter_t iter, size_t *start, size_t *len);
+