* @E_BOOK_INDEX_PREFIX: An index suitable for searching contacts with a prefix pattern
* @E_BOOK_INDEX_SUFFIX: An index suitable for searching contacts with a suffix pattern
* @E_BOOK_INDEX_PHONE: An index suitable for searching contacts for phone numbers.
- * <note><para>that phone numbers must be convertible into FQTN according to E.164 to be
+ * <note><para>Phone numbers must be convertible into FQTN according to E.164 to be
* stored in this index. The number "+9999999" for instance won't be stored because
* the country calling code "+999" currently is not assigned.</para></note>
+ * @E_BOOK_INDEX_SORT_KEY: Indicates that a given #EContactField should be usable as a sort key.
*
* The type of index defined by e_source_backend_summary_setup_set_indexed_fields()
*/
typedef enum {
E_BOOK_INDEX_PREFIX = 0,
E_BOOK_INDEX_SUFFIX,
- E_BOOK_INDEX_PHONE
+ E_BOOK_INDEX_PHONE,
+ E_BOOK_INDEX_SORT_KEY
} EBookIndexType;
/**