+ lookahead = lookahead->next;
+ }
+ if (left_trunc && right_trunc)
+ {
+ if (!qual_val_type(qa, CCL_BIB1_TRU, CCL_BIB1_TRU_CAN_BOTH,
+ &attset))
+ {
+ cclp->error_code = CCL_ERR_TRUNC_NOT_BOTH;
+ ccl_rpn_delete(p);
+ return NULL;
+ }
+ ccl_add_attr_numeric(p, attset, CCL_BIB1_TRU, 3);
+ }
+ else if (right_trunc)
+ {
+ if (!qual_val_type(qa, CCL_BIB1_TRU, CCL_BIB1_TRU_CAN_RIGHT,
+ &attset))
+ {
+ cclp->error_code = CCL_ERR_TRUNC_NOT_RIGHT;
+ ccl_rpn_delete(p);
+ return NULL;
+ }
+ ccl_add_attr_numeric(p, attset, CCL_BIB1_TRU, 1);
+ }
+ else if (left_trunc)
+ {
+ if (!qual_val_type(qa, CCL_BIB1_TRU, CCL_BIB1_TRU_CAN_LEFT,
+ &attset))
+ {
+ cclp->error_code = CCL_ERR_TRUNC_NOT_LEFT;
+ ccl_rpn_delete(p);
+ return NULL;
+ }
+ ccl_add_attr_numeric(p, attset, CCL_BIB1_TRU, 2);
+ }
+ else if (regex_trunc)
+ {
+ ccl_add_attr_numeric(p, attset, CCL_BIB1_TRU, 102);
+ }
+ else if (z3958_trunc)
+ {
+ ccl_add_attr_numeric(p, attset, CCL_BIB1_TRU, 104);
+ }
+ else
+ {
+ if (qual_val_type(qa, CCL_BIB1_TRU, CCL_BIB1_TRU_CAN_NONE,
+ &attset))
+ ccl_add_attr_numeric(p, attset, CCL_BIB1_TRU, 100);
+ }
+ return p;
+}
+
+/**
+ * search_term: Parse CCL search term.
+ * cclp: CCL Parser
+ * qa: Qualifier attributes already applied.
+ * term_list: tokens we accept as terms in context
+ * multi: whether we accept "multiple" tokens
+ * return: pointer to node(s); NULL on error.
+ */
+static struct ccl_rpn_node *search_term_x(CCL_parser cclp,
+ ccl_qualifier_t *qa,
+ int *term_list, int multi)
+{
+ struct ccl_rpn_node *p_top = 0;
+ struct ccl_token *lookahead = cclp->look_token;
+ int and_list = 0;
+ int auto_group = 0;
+ int or_list = 0;
+ const char **truncation_aliases;
+ const char *t_default[2];
+ const char **mask_aliases;
+ const char *m_default[2];
+
+ truncation_aliases =
+ ccl_qual_search_special(cclp->bibset, "truncation");
+ if (!truncation_aliases)
+ {
+ truncation_aliases = t_default;
+ t_default[0] = "?";
+ t_default[1] = 0;
+ }