/*
- * Copyright (c) 1996-1998, Index Data.
+ * Copyright (c) 1996-1999, Index Data.
* See the file LICENSE for details.
* Sebastian Hammer, Adam Dickmeiss
*
* $Log: yaz-ccl.c,v $
- * Revision 1.2 1999-06-16 12:00:08 adam
+ * Revision 1.4 1999-12-20 15:20:13 adam
+ * Implemented ccl_pquery to convert from CCL tree to prefix query.
+ *
+ * Revision 1.3 1999/11/30 13:47:12 adam
+ * Improved installation. Moved header files to include/yaz.
+ *
+ * Revision 1.2 1999/06/16 12:00:08 adam
* Added proximity.
*
* Revision 1.1 1999/06/08 10:12:43 adam
#include <string.h>
#include <assert.h>
-#include <yaz-ccl.h>
+#include <yaz/yaz-ccl.h>
static Z_RPNStructure *ccl_rpn_structure (ODR o, struct ccl_rpn_node *p);
return NULL;
return ccl_rpn_term (o, p);
}
+
+static void ccl_pquery_complex (WRBUF w, struct ccl_rpn_node *p)
+{
+ switch (p->kind)
+ {
+ case CCL_RPN_AND:
+ wrbuf_puts (w, "@and ");
+ break;
+ case CCL_RPN_OR:
+ wrbuf_puts(w, "@or ");
+ break;
+ case CCL_RPN_NOT:
+ wrbuf_puts(w, "@not ");
+ break;
+ case CCL_RPN_PROX:
+ wrbuf_puts(w, "@prox 0 2 0 1 known 2 ");
+ break;
+ default:
+ assert(0);
+ };
+ ccl_pquery(w, p->u.p[0]);
+ ccl_pquery(w, p->u.p[1]);
+}
+
+void ccl_pquery (WRBUF w, struct ccl_rpn_node *p)
+{
+ struct ccl_rpn_attr *att;
+
+ switch (p->kind)
+ {
+ case CCL_RPN_AND:
+ case CCL_RPN_OR:
+ case CCL_RPN_NOT:
+ case CCL_RPN_PROX:
+ ccl_pquery_complex (w, p);
+ break;
+ case CCL_RPN_SET:
+ wrbuf_puts (w, "@set ");
+ wrbuf_puts (w, p->u.setname);
+ wrbuf_puts (w, " ");
+ break;
+ case CCL_RPN_TERM:
+ for (att = p->u.t.attr_list; att; att = att->next)
+ {
+ char tmpattr[128];
+ sprintf(tmpattr, "@attr %d=%d ", att->type, att->value);
+ wrbuf_puts (w, tmpattr);
+ }
+ wrbuf_puts (w, "{");
+ wrbuf_puts (w, p->u.t.term);
+ wrbuf_puts (w, "} ");
+ break;
+ default:
+ assert (0);
+ };
+}