- /* go through each TERM token. If no truncation attribute is yet
- met, then look for left/right truncation markers (?) and
- set left_trunc/right_trunc/mid_trunc accordingly */
- for (no = 0; is_term_ok(lookahead->kind, term_list); no++)
- {
- for (i = 0; i<lookahead->len; i++)
- if (truncation_value == -1 && lookahead->name[i] == '?')
- {
- if (no == 0 && i == 0 && lookahead->len >= 1)
- left_trunc = 1;
- else if (!is_term_ok(lookahead->next->kind, term_list) &&
- i == lookahead->len-1 && i >= 1)
- right_trunc = 1;
- else
- mid_trunc = 1;
- }
- len += 1+lookahead->len;
- lookahead = lookahead->next;
- }
- /* len now holds the number of characters in the RPN term */
- /* no holds the number of CCL tokens (1 or more) */
-
- if (structure_value == -1 &&
- qual_val_type (qa, CCL_BIB1_STR, CCL_BIB1_STR_WP))
- { /* no structure attribute met. Apply either structure attribute
- WORD or PHRASE depending on number of CCL tokens */
- if (no == 1)
- add_attr (p, CCL_BIB1_STR, 2);
- else
- add_attr (p, CCL_BIB1_STR, 1);
- }
-
- /* make the RPN token */
- p->u.t.term = (char *)malloc (len);
- ccl_assert (p->u.t.term);
- p->u.t.term[0] = '\0';
- for (i = 0; i<no; i++)
- {
- const char *src_str = cclp->look_token->name;
- int src_len = cclp->look_token->len;
-
- if (i == 0 && left_trunc)
- {
- src_len--;
- src_str++;
- }
- else if (i == no-1 && right_trunc)
- src_len--;
- if (src_len)
- {
- int len = strlen(p->u.t.term);
- if (len &&
- !strchr("-+", *src_str) &&
- !strchr("-+", p->u.t.term[len-1]))
- {
- strcat (p->u.t.term, " ");
- }
- }
- strxcat (p->u.t.term, src_str, src_len);
- ADVANCE;
- }
- if (left_trunc && right_trunc)
- {
- if (!qual_val_type (qa, CCL_BIB1_TRU, CCL_BIB1_TRU_CAN_BOTH))
- {
- cclp->error_code = CCL_ERR_TRUNC_NOT_BOTH;
- ccl_rpn_delete (p);
- return NULL;
- }
- add_attr (p, CCL_BIB1_TRU, 3);
- }
- else if (right_trunc)
- {
- if (!qual_val_type (qa, CCL_BIB1_TRU, CCL_BIB1_TRU_CAN_RIGHT))
- {
- cclp->error_code = CCL_ERR_TRUNC_NOT_RIGHT;
- ccl_rpn_delete (p);
- return NULL;
- }
- add_attr (p, CCL_BIB1_TRU, 1);
- }
- else if (left_trunc)
- {
- if (!qual_val_type (qa, CCL_BIB1_TRU, CCL_BIB1_TRU_CAN_LEFT))
- {
- cclp->error_code = CCL_ERR_TRUNC_NOT_LEFT;
- ccl_rpn_delete (p);
- return NULL;
- }
- add_attr (p, CCL_BIB1_TRU, 2);
- }
- else
- {
- if (qual_val_type (qa, CCL_BIB1_TRU, CCL_BIB1_TRU_CAN_NONE))
- add_attr (p, CCL_BIB1_TRU, 100);
- }
- return p;