+/* * * * * * * *
+ * High-level interface
+ * These routines build the nfa and add converters, all
+ * in one go.
+ * * * * * * * */
+
+int yaz_nfa_add_string_rule( yaz_nfa *n,
+ yaz_nfa_char *from_string,
+ size_t from_length,
+ yaz_nfa_char *to_string,
+ size_t to_length ) {
+ yaz_nfa_state *s=
+ yaz_nfa_add_sequence(n, 0, from_string,from_length);
+ yaz_nfa_converter *c=
+ yaz_nfa_create_string_converter(n,to_string,to_length);
+ return yaz_nfa_set_result(n,s,c);
+}
+
+int yaz_nfa_add_ascii_string_rule( yaz_nfa *n,
+ char *from_string,
+ char *to_string) {
+ size_t from_len = strlen(from_string);
+ size_t to_len = strlen(to_string);
+ yaz_nfa_char *from_buf=
+ nmem_malloc(n->nmem, from_len*sizeof(yaz_nfa_char));
+ yaz_nfa_char *to_buf=
+ nmem_malloc(n->nmem, to_len*sizeof(yaz_nfa_char));
+ int i;
+ for (i=0;i<from_len;i++)
+ from_buf[i]=from_string[i];
+ for (i=0;i<to_len;i++)
+ to_buf[i]=to_string[i];
+ return yaz_nfa_add_string_rule(n,from_buf, from_len,
+ to_buf, to_len);
+}
+
+int yaz_nfa_add_char_range_rule (yaz_nfa *n,
+ yaz_nfa_char range_start,
+ yaz_nfa_char range_end,
+ yaz_nfa_char output_range_start) {
+ yaz_nfa_state *s=
+ yaz_nfa_add_range(n, 0, range_start, range_end);
+ yaz_nfa_converter *c=
+ yaz_nfa_create_range_converter(n,0,range_start, output_range_start);
+ return yaz_nfa_set_result(n,s,c);
+}
+
+int yaz_nfa_add_char_string_rule (yaz_nfa *n,
+ yaz_nfa_char range_start,
+ yaz_nfa_char range_end,
+ yaz_nfa_char* to_string,
+ size_t to_length) {
+ yaz_nfa_state *s=
+ yaz_nfa_add_range(n, 0, range_start, range_end);
+ yaz_nfa_converter *c=
+ yaz_nfa_create_string_converter(n,to_string,to_length);
+ return yaz_nfa_set_result(n,s,c);
+}
+
+
+int yaz_nfa_convert_slice (yaz_nfa *n,
+ yaz_nfa_char **inbuff,
+ size_t *incharsleft,
+ yaz_nfa_char **outbuff,
+ size_t *outcharsleft) {
+ void *resptr;
+ yaz_nfa_converter *conv;
+ int rc;
+
+ if (*outcharsleft==0)
+ rc=YAZ_NFA_NOSPACE; /* no room in outbuff */
+ else if (*incharsleft==0)
+ rc = YAZ_NFA_SUCCESS; /* all done */
+ else {
+ rc=yaz_nfa_match(n, inbuff, incharsleft, &resptr);
+ if (rc==YAZ_NFA_SUCCESS) {
+ conv= (yaz_nfa_converter *)resptr;
+ rc=yaz_nfa_run_converters(n,conv,outbuff,outcharsleft);
+ } else if (rc==YAZ_NFA_NOMATCH) {
+ **outbuff = **inbuff;
+ (*outbuff)++;
+ (*inbuff)++;
+ (*outcharsleft)--;
+ (*incharsleft)--;
+ rc=YAZ_NFA_SUCCESS;
+ }
+ /* else just return the error code */
+ }
+ return rc;
+}