View file File name : filter.sl Content :define filter_region () { variable cmd, file; check_region (1); % spot pushed () = dupmark (); ERROR_BLOCK { pop_mark (0); pop_spot (); } do { cmd = read_mini ("Filter command:", Null_String, Null_String); } while (not (strlen (cmd))); file = make_tmp_file ("/tmp/jedfilter"); ERROR_BLOCK { pop_spot (); () = delete_file (file); } () = pipe_region (sprintf ("%s > %s", cmd, file)); push_spot (); if (-1 == insert_file (file)) { pop_spot (); error ("Error encountered running filter."); } pop_spot (); del_region (); EXECUTE_ERROR_BLOCK; }