+ * Revision 1.14 1994-10-04 17:46:55 adam
+ * Function options now returns arg with error option.
+ *
+ * Revision 1.13 1994/10/04 12:08:05 adam
+ * Some bug fixes and some optimizations.
+ *
+ * Revision 1.12 1994/10/03 17:23:03 adam
+ * First version of dictionary lookup with regular expressions and errors.
+ *
+ * Revision 1.11 1994/09/28 13:07:09 adam
+ * Use log_mask_str now.
+ *
+ * Revision 1.10 1994/09/26 10:17:24 adam
+ * Minor changes.
+ *
+ * Revision 1.9 1994/09/22 14:43:56 adam
+ * First functional version of lookup with error correction. A 'range'
+ * specified the maximum number of insertions+deletions+substitutions.
+ *
+ * Revision 1.8 1994/09/22 10:43:44 adam