+ case YAZ_chain_step_type_stemming:
+ if (dst)
+ {
+ struct icu_buf_utf16 *src = dst;
+ dst = icu_buf_utf16_create(0);
+ yaz_stemmer_stem(step->u.stemmer, dst, src, &iter->status);
+ icu_buf_utf16_destroy(src);
+ }
+ break;
+ case ICU_chain_step_type_join:
+ if (dst)
+ {
+ while (1)
+ {
+ struct icu_buf_utf16 *dst1 =
+ icu_iter_invoke(iter, step->previous, 0);
+
+ if (!dst1)
+ break;
+ dst = icu_buf_utf16_append(dst, step->u.join);
+ dst = icu_buf_utf16_append(dst, dst1);
+ icu_buf_utf16_destroy(dst1);
+ }
+ }
+ break;