121 	unsigned int column;  member
423  *		 the column state and space left in the buffer
437 			ldata->column = 0;  in do_output_char()
441 			ldata->canon_column = ldata->column = 0;  in do_output_char()
445 		ldata->canon_column = ldata->column;  in do_output_char()
448 		if (O_ONOCR(tty) && ldata->column == 0)  in do_output_char()
453 				ldata->canon_column = ldata->column = 0;  in do_output_char()
456 		ldata->canon_column = ldata->column = 0;  in do_output_char()
459 		spaces = 8 - (ldata->column & 7);  in do_output_char()
463 			ldata->column += spaces;  in do_output_char()
467 		ldata->column += spaces;  in do_output_char()
470 		if (ldata->column > 0)  in do_output_char()
471 			ldata->column--;  in do_output_char()
478 				ldata->column++;  in do_output_char()
496  *	Locking: output_lock to protect column state and space left
532  *	Locking: output_lock to protect column state and space left
561 				ldata->column = 0;  in process_output_block()
564 			ldata->canon_column = ldata->column;  in process_output_block()
567 			if (O_ONOCR(tty) && ldata->column == 0)  in process_output_block()
571 			ldata->canon_column = ldata->column = 0;  in process_output_block()
576 			if (ldata->column > 0)  in process_output_block()
577 				ldata->column--;  in process_output_block()
584 					ldata->column++;  in process_output_block()
611  *	changes in column state are also saved in the buffer and executed
666 				 * previous tab, we offset by canon column.  in __process_echoes()
680 					if (ldata->column > 0)  in __process_echoes()
681 						ldata->column--;  in __process_echoes()
687 				ldata->canon_column = ldata->column;  in __process_echoes()
692 				if (ldata->column > 0)  in __process_echoes()
693 					ldata->column--;  in __process_echoes()
704 				ldata->column++;  in __process_echoes()
725 				ldata->column += 2;  in __process_echoes()
844  *	echo_move_back_col	-	add operation to move back a column
847  *	Add an operation to the echo buffer to move back one column.
857  *	echo_set_canon_col	-	add operation to set the canon column
860  *	Add an operation to the echo buffer to set the canon column
861  *	to the current column.
881  *	canon column (if applicable), to go back the correct number
1357 				/* Record the column of first canon char. */  in n_tty_receive_char_special()
1385 			/* Record the column of first canon char. */  in n_tty_receive_char_special()
1412 		/* Record the column of first canon char. */  in n_tty_receive_char_inline()
1440 		/* Record the column of first canon char. */  in n_tty_receive_char_fast()
2307  *	echo processing function to protect the column state and space
2312  *	Locking: output_lock to protect column state and space left