121 	unsigned int column;  member
428  *		 the column state and space left in the buffer
442 			ldata->column = 0;  in do_output_char()
446 			ldata->canon_column = ldata->column = 0;  in do_output_char()
450 		ldata->canon_column = ldata->column;  in do_output_char()
453 		if (O_ONOCR(tty) && ldata->column == 0)  in do_output_char()
458 				ldata->canon_column = ldata->column = 0;  in do_output_char()
461 		ldata->canon_column = ldata->column = 0;  in do_output_char()
464 		spaces = 8 - (ldata->column & 7);  in do_output_char()
468 			ldata->column += spaces;  in do_output_char()
472 		ldata->column += spaces;  in do_output_char()
475 		if (ldata->column > 0)  in do_output_char()
476 			ldata->column--;  in do_output_char()
483 				ldata->column++;  in do_output_char()
501  *	Locking: output_lock to protect column state and space left
537  *	Locking: output_lock to protect column state and space left
566 				ldata->column = 0;  in process_output_block()
569 			ldata->canon_column = ldata->column;  in process_output_block()
572 			if (O_ONOCR(tty) && ldata->column == 0)  in process_output_block()
576 			ldata->canon_column = ldata->column = 0;  in process_output_block()
581 			if (ldata->column > 0)  in process_output_block()
582 				ldata->column--;  in process_output_block()
589 					ldata->column++;  in process_output_block()
616  *	changes in column state are also saved in the buffer and executed
671 				 * previous tab, we offset by canon column.  in __process_echoes()
685 					if (ldata->column > 0)  in __process_echoes()
686 						ldata->column--;  in __process_echoes()
692 				ldata->canon_column = ldata->column;  in __process_echoes()
697 				if (ldata->column > 0)  in __process_echoes()
698 					ldata->column--;  in __process_echoes()
709 				ldata->column++;  in __process_echoes()
730 				ldata->column += 2;  in __process_echoes()
849  *	echo_move_back_col	-	add operation to move back a column
852  *	Add an operation to the echo buffer to move back one column.
862  *	echo_set_canon_col	-	add operation to set the canon column
865  *	Add an operation to the echo buffer to set the canon column
866  *	to the current column.
886  *	canon column (if applicable), to go back the correct number
1362 				/* Record the column of first canon char. */  in n_tty_receive_char_special()
1390 			/* Record the column of first canon char. */  in n_tty_receive_char_special()
1417 		/* Record the column of first canon char. */  in n_tty_receive_char_inline()
1445 		/* Record the column of first canon char. */  in n_tty_receive_char_fast()
2291  *	echo processing function to protect the column state and space
2296  *	Locking: output_lock to protect column state and space left