+void
+syn_delete( Syntax *syn )
+{
+ LDAP_STAILQ_REMOVE(&syn_list, syn, Syntax, ssyn_next);
+}
+
+int
+syn_start( Syntax **syn )
+{
+ assert( syn != NULL );
+
+ *syn = LDAP_STAILQ_FIRST(&syn_list);
+
+ return (*syn != NULL);
+}
+
+int
+syn_next( Syntax **syn )
+{
+ assert( syn != NULL );
+
+#if 0 /* pedantic check: don't use this */
+ {
+ Syntax *tmp = NULL;
+
+ LDAP_STAILQ_FOREACH(tmp,&syn_list,ssyn_next) {
+ if ( tmp == *syn ) {
+ break;
+ }
+ }
+
+ assert( tmp != NULL );
+ }
+#endif
+
+ *syn = LDAP_STAILQ_NEXT(*syn,ssyn_next);
+
+ return (*syn != NULL);
+}
+
+void
+syn_unparse( BerVarray *res, Syntax *start, Syntax *end, int sys )
+{
+ Syntax *syn;
+ int i, num;
+ struct berval bv, *bva = NULL, idx;
+ char ibuf[32];
+
+ if ( !start )
+ start = LDAP_STAILQ_FIRST( &syn_list );
+
+ /* count the result size */
+ i = 0;
+ for ( syn = start; syn; syn = LDAP_STAILQ_NEXT( syn, ssyn_next ) ) {
+ if ( sys && !( syn->ssyn_flags & SLAP_SYNTAX_HARDCODE ) ) break;
+ i++;
+ if ( syn == end ) break;
+ }
+ if ( !i ) return;
+
+ num = i;
+ bva = ch_malloc( (num+1) * sizeof(struct berval) );
+ BER_BVZERO( bva );
+ idx.bv_val = ibuf;
+ if ( sys ) {
+ idx.bv_len = 0;
+ ibuf[0] = '\0';
+ }
+ i = 0;
+ for ( syn = start; syn; syn = LDAP_STAILQ_NEXT( syn, ssyn_next ) ) {
+ if ( sys && !( syn->ssyn_flags & SLAP_SYNTAX_HARDCODE ) ) break;
+ if ( ldap_syntax2bv( &syn->ssyn_syn, &bv ) == NULL ) {
+ ber_bvarray_free( bva );
+ }
+ if ( !sys ) {
+ idx.bv_len = sprintf(idx.bv_val, "{%d}", i);
+ }
+ bva[i].bv_len = idx.bv_len + bv.bv_len;
+ bva[i].bv_val = ch_malloc( bva[i].bv_len + 1 );
+ strcpy( bva[i].bv_val, ibuf );
+ strcpy( bva[i].bv_val + idx.bv_len, bv.bv_val );
+ i++;
+ bva[i].bv_val = NULL;
+ ldap_memfree( bv.bv_val );
+ if ( syn == end ) break;
+ }
+ *res = bva;
+}
+