void dfm_expand_tabs (struct dfm_reader *);
/* Line control. */
void dfm_forward_record (struct dfm_reader *);
void dfm_reread_record (struct dfm_reader *, size_t column);
void dfm_forward_columns (struct dfm_reader *, size_t columns);
void dfm_expand_tabs (struct dfm_reader *);
/* Line control. */
void dfm_forward_record (struct dfm_reader *);
void dfm_reread_record (struct dfm_reader *, size_t column);
void dfm_forward_columns (struct dfm_reader *, size_t columns);