/*
 *  call-seq:
 *     index_reader.term_docs -> TermDocEnum
 *
 *  Builds a TermDocEnum (term-document enumerator) for the index. You can use
 *  this object to iterate through the documents in which certain terms occur.
 *  See TermDocEnum for more info.
 */
static VALUE
frt_ir_term_docs(VALUE self)
{
    IndexReader *ir = (IndexReader *)DATA_PTR(self);
    return frt_get_tde(self, ir->term_docs(ir));
}