+
+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:
+ wrbuf_puts(w, "@ bad op (unknown) ");
+ };
+ 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;
+ const char *cp;
+
+ 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];
+ wrbuf_puts (w, "@attr ");
+ if (att->set)
+ {
+ wrbuf_puts (w, att->set);
+ wrbuf_puts (w, " ");
+ }
+ sprintf(tmpattr, "%d=%d ", att->type, att->value);
+ wrbuf_puts (w, tmpattr);
+ }
+ for (cp = p->u.t.term; *cp; cp++)
+ {
+ if (*cp == ' ' || *cp == '\\')
+ wrbuf_putc (w, '\\');
+ wrbuf_putc (w, *cp);
+ }
+ wrbuf_puts (w, " ");
+ break;
+ }
+}