34  *	Create a new screen, horizontally.
55 		    "222|Screen must be larger than %d lines to split", 4 - 1);  in vs_split()
59 	/* Wait for any messages in the screen. */  in vs_split()
62 	/* Get a new screen map. */  in vs_split()
70 	/* Split the screen in half. */  in vs_split()
77 	 * we know to fix the screen up later.  in vs_split()
81 	/* The columns in the screen don't change. */  in vs_split()
86 	 * Split the screen, and link the screens together.  If creating a  in vs_split()
87 	 * screen to edit the colon command line or the cursor is in the top  in vs_split()
88 	 * half of the current screen, the new screen goes under the current  in vs_split()
89 	 * screen.  Else, it goes above the current screen.  in vs_split()
92 	 * with the cursor on the colon command line.  Then split the screen  in vs_split()
104 		 * If the parent is the bottom half of the screen, shift  in vs_split()
105 		 * the map down to match on-screen text.  in vs_split()
122 	 * The child may have different screen options sizes than the parent,  in vs_split()
124 	 * new screen sizes.  in vs_split()
131 		/* Fix the parent screen. */  in vs_split()
137 		/* Fix the child screen. */  in vs_split()
147 		 * The new screen may be a small screen, even if the parent  in vs_split()
149 		 * splitting the screen so the screen is much smaller than  in vs_split()
170 	/* Fit the screen into the logical chain. */  in vs_split()
177 	 * Initialize the screen flags:  in vs_split()
179 	 * If we're in vi mode in one screen, we don't have to reinitialize.  in vs_split()
189 	 * Draw the new screen from scratch, and add a status line.  in vs_split()
199  *	Create a new screen, vertically.
214 		    "288|Screen must be larger than %d columns to split",  in vs_vsplit()
219 	/* Wait for any messages in the screen. */  in vs_vsplit()
222 	/* Get a new screen map. */  in vs_vsplit()
231 	 * Split the screen in half; we have to sacrifice a column to delimit  in vs_vsplit()
240 	 * We reserve a column for the screen, "knowing" that curses needs  in vs_vsplit()
258 	/* Fit the screen into the logical chain. */  in vs_vsplit()
264 	/* Redraw the old screen from scratch. */  in vs_vsplit()
268 	 * Initialize the screen flags:  in vs_vsplit()
270 	 * If we're in vi mode in one screen, we don't have to reinitialize.  in vs_vsplit()
280 	 * Draw the new screen from scratch, and add a status line.  in vs_vsplit()
290  *	Insert the new screen into the correct place in the logical
313 	 * If we reached the end, this screen goes there.  Otherwise,  in vs_insert()
314 	 * put it before or after the screen where we stopped.  in vs_insert()
327  *	Discard the screen, folding the real-estate into a related screen,
328  *	if one exists, and return that screen.
342 	 * Save the old screen's cursor information.  in vs_discard()
364 	 * Find a set of screens that cover one of the screen's borders.  in vs_discard()
368 	 * It's possible (I think?), to create a screen that shares no full  in vs_discard()
376 	 * Modify the affected screens.  Redraw the modified screen(s) from  in vs_discard()
381 	 * Don't clean up the discarded screen's information.  If the screen  in vs_discard()
390 			 * text line info, unless it's a small screen.  in vs_discard()
434 	/* Find the closest screen that changed and move to it. */  in vs_discard()
439 	/* Tell the display that we're discarding a screen. */  in vs_discard()
447  *	Find a set of screens that covers a screen's border.
465 		/* Test if precedes the screen vertically. */  in vs_join()
500 		/* Test if follows the screen vertically. */  in vs_join()
535 		/* Test if precedes the screen horizontally. */  in vs_join()
571 		/* Test if precedes the screen horizontally. */  in vs_join()
605  *	Background the current screen, and foreground a new one.
624 		/* Get the specified background screen. */  in vs_fg()
635 		    "224|There's no background screen editing a file named %s");  in vs_fg()
640 		/* Remove the new screen from the background queue. */  in vs_fg()
643 		/* Split the screen; if we fail, hook the screen back in. */  in vs_fg()
649 		/* Move the old screen to the background queue. */  in vs_fg()
658  *	Background the screen, and switch to the next one.
670 	/* Try and join with another screen. */  in vs_bg()
675 		    "225|You may not background your only displayed screen");  in vs_bg()
679 	/* Move the old screen to the background queue. */  in vs_bg()
683 	/* Toss the screen map. */  in vs_bg()
696  *	Swap the current screen with a backgrounded one.
708 	/* Get the specified background screen. */  in vs_swap()
713 	 * Save the old screen's cursor information.  in vs_swap()
732 	/* Initialize screen information. */  in vs_swap()
740 	 * The new screens may have different screen options sizes than the  in vs_swap()
742 	 * than the new screen sizes.  in vs_swap()
756 	/* Allocate a new screen map. */  in vs_swap()
766 	 * The new screen replaces the old screen in the parent/child list.  in vs_swap()
767 	 * We insert the new screen after the old one.  If we're exiting,  in vs_swap()
775 	 * Don't change the screen's cursor information other than to  in vs_swap()
780 	/* Draw the new screen from scratch, and add a status line. */  in vs_swap()
791  *	Change the absolute size of the current screen.
822 	/* Find first overlapping screen */  in vs_resize()
862 				    "227|The screen cannot shrink" :  in vs_resize()
863 				    "228|The screen cannot grow");  in vs_resize()
868 				    "226|The screen can only shrink to %d rows",  in vs_resize()
878 	 * screen, but this isn't likely to be a common enough operation  in vs_resize()
909  *	Get the specified background screen, or, if name is NULL, the first
910  *	background screen.
921 	/* If name is NULL, return the first background screen on the list. */  in vs_getbg()