Add a dedicated function to convert a line into a string and use it to simplify the search window function.

grid-view.c

@@ -209,3 +209,15 @@ grid_view_delete_cells(struct grid *gd, u_int px, u_int py, u_int nx)
 
 	grid_move_cells(gd, px, px + nx, py, (sx - 1) - (px + nx));
 }
+
+/* Convert cells into a string. */
+char *
+grid_view_string_cells(struct grid *gd, u_int px, u_int py, u_int nx)
+{
+	GRID_DEBUG(gd, "px=%u, py=%u, nx=%u", px, py, nx);
+
+	px = grid_view_x(gd, px);
+	py = grid_view_y(gd, py);
+
+	return (grid_string_cells(gd, px, py, nx));
+}