*/
    String getIndexFieldAnchor();

    /**
     * Get the value for the key 'index.field.segment'. <br>
     * The value is, e.g. segment <br>
     * comment: Field name for segment in the index.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getIndexFieldSegment();

    /**

1342F         ; valid                                  # 15.0 EGYPTIAN HIEROGLYPH V011D
13430..13438  ; disallowed                             # 12.0 EGYPTIAN HIEROGLYPH VERTICAL JOINER..EGYPTIAN HIEROGLYPH END SEGMENT
13439..1343F  ; disallowed                             # 15.0 EGYPTIAN HIEROGLYPH INSERT AT MIDDLE..EGYPTIAN HIEROGLYPH END WALLED ENCLOSURE