+ * Revision 1.24 1998-10-28 15:10:09 adam
+ * Added --with-yc option to configure. For the data1_node in data1.h:
+ * decreased size of localdata and removed member "line" which wasn't useful.
+ *
+ * Revision 1.23 1998/03/12 11:28:45 adam
+ * Fix: didn't set root member of tagged node in function.
+ * data1_add_insert_taggeddata.
+ *
+ * Revision 1.22 1998/03/05 08:15:32 adam
+ * Implemented data1_add_insert_taggeddata utility which is more flexible
+ * than data1_insert_taggeddata.
+ *
+ * Revision 1.21 1998/02/27 14:08:05 adam
+ * Added const to some char pointer arguments.
+ * Reworked data1_read_node so that it doesn't create a tree with
+ * pointers to original "SGML"-buffer.
+ *
+ * Revision 1.20 1998/02/11 11:53:35 adam
+ * Changed code so that it compiles as C++.
+ *
+ * Revision 1.19 1997/12/09 16:17:09 adam
+ * Fix bug regarding variants. Tags with prefix "var" was incorrectly
+ * interpreted as "start of variants". Now, only "var" indicates such
+ * start.
+ * Cleaned up data1_read_node so tag names and variant names are
+ * copied and not pointed to by the generated data1 tree. Data nodes
+ * still point to old buffer.
+ *
+ * Revision 1.18 1997/11/18 09:51:09 adam
+ * Removed element num_children from data1_node. Minor changes in
+ * data1 to Explain.
+ *
+ * Revision 1.17 1997/11/05 09:20:51 adam
+ * Minor change.
+ *
+ * Revision 1.16 1997/09/17 12:10:37 adam
+ * YAZ version 1.4.
+ *
+ * Revision 1.15 1997/09/05 09:50:57 adam
+ * Removed global data1_tabpath - uses data1_get_tabpath() instead.
+ *
+ * Revision 1.14 1997/05/14 06:54:04 adam
+ * C++ support.
+ *
+ * Revision 1.13 1996/10/29 13:35:38 adam
+ * Implemented data1_set_tabpath and data1_get_tabpath.
+ *
+ * Revision 1.12 1996/10/11 10:35:38 adam
+ * Fixed a bug that caused data1_read_node to core dump when no abstract
+ * syntax was defined in a "sgml"-record.
+ *
+ * Revision 1.11 1996/07/06 19:58:35 quinn
+ * System headerfiles gathered in yconfig
+ *
+ * Revision 1.10 1996/01/19 15:41:47 quinn
+ * Fixed uninitialized boolean.
+ *
+ * Revision 1.9 1996/01/17 14:52:47 adam
+ * Changed prototype for reader function parsed to data1_read_record.
+ *
+ * Revision 1.8 1995/12/15 16:20:41 quinn
+ * Added formatted text.
+ *
+ * Revision 1.7 1995/12/13 13:44:32 quinn
+ * Modified Data1-system to use nmem
+ *
+ * Revision 1.6 1995/12/12 16:37:08 quinn
+ * Added destroy element to data1_node.
+ *
+ * Revision 1.5 1995/12/11 15:22:37 quinn
+ * Added last_child field to the node.
+ * Rewrote schema-mapping.
+ *
+ * Revision 1.4 1995/11/13 09:27:36 quinn
+ * Fiddling with the variant stuff.
+ *
+ * Revision 1.3 1995/11/01 16:34:57 quinn
+ * Making data1 look for tables in data1_tabpath
+ *
+ * Revision 1.2 1995/11/01 13:54:48 quinn