diff -r 5314ebdcb38d -r 2d43f05b284c pdcurses/deleteln.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/pdcurses/deleteln.c	Thu Jul 23 18:07:39 2015 +0300
@@ -0,0 +1,208 @@
+/* Public Domain Curses */
+
+#include <curspriv.h>
+
+RCSID("$Id: deleteln.c,v 1.35 2008/07/13 16:08:18 wmcbrine Exp $")
+
+/*man-start**************************************************************
+
+  Name:                                                         deleteln
+
+  Synopsis:
+        int deleteln(void);
+        int wdeleteln(WINDOW *win);
+        int insdelln(int n);
+        int winsdelln(WINDOW *win, int n);
+        int insertln(void);
+        int winsertln(WINDOW *win);
+
+        int mvdeleteln(int y, int x);
+        int mvwdeleteln(WINDOW *win, int y, int x);
+        int mvinsertln(int y, int x);
+        int mvwinsertln(WINDOW *win, int y, int x);
+
+  Description:
+        With the deleteln() and wdeleteln() functions, the line under
+        the cursor in the window is deleted.  All lines below the
+        current line are moved up one line.  The bottom line of the
+        window is cleared.  The cursor position does not change.
+
+        With the insertln() and winsertn() functions, a blank line is 
+        inserted above the current line and the bottom line is lost.
+
+        mvdeleteln(), mvwdeleteln(), mvinsertln() and mvwinsertln() 
+        allow moving the cursor and inserting/deleting in one call.
+
+  Return Value:
+        All functions return OK on success and ERR on error.
+
+  Portability                                X/Open    BSD    SYS V
+        deleteln                                Y       Y       Y
+        wdeleteln                               Y       Y       Y
+        mvdeleteln                              -       -       -
+        mvwdeleteln                             -       -       -
+        insdelln                                Y       -      4.0
+        winsdelln                               Y       -      4.0
+        insertln                                Y       Y       Y
+        winsertln                               Y       Y       Y
+        mvinsertln                              -       -       -
+        mvwinsertln                             -       -       -
+
+**man-end****************************************************************/
+
+int wdeleteln(WINDOW *win)
+{
+    chtype blank, *temp, *ptr;
+    int y;
+
+    PDC_LOG(("wdeleteln() - called\n"));
+
+    if (!win)
+        return ERR;
+
+    /* wrs (4/10/93) account for window background */
+
+    blank = win->_bkgd;
+
+    temp = win->_y[win->_cury];
+
+    for (y = win->_cury; y < win->_bmarg; y++)
+    {
+        win->_y[y] = win->_y[y + 1];
+        win->_firstch[y] = 0;
+        win->_lastch[y] = win->_maxx - 1;
+    }
+
+    for (ptr = temp; (ptr - temp < win->_maxx); ptr++)
+        *ptr = blank;           /* make a blank line */
+
+    if (win->_cury <= win->_bmarg) 
+    {
+        win->_firstch[win->_bmarg] = 0;
+        win->_lastch[win->_bmarg] = win->_maxx - 1;
+        win->_y[win->_bmarg] = temp;
+    }
+
+    return OK;
+}
+
+int deleteln(void)
+{
+    PDC_LOG(("deleteln() - called\n"));
+
+    return wdeleteln(stdscr);
+}
+
+int mvdeleteln(int y, int x)
+{
+    PDC_LOG(("mvdeleteln() - called\n"));
+
+    if (move(y, x) == ERR)
+        return ERR;
+
+    return wdeleteln(stdscr);
+}
+
+int mvwdeleteln(WINDOW *win, int y, int x)
+{
+    PDC_LOG(("mvwdeleteln() - called\n"));
+
+    if (wmove(win, y, x) == ERR)
+        return ERR;
+
+    return wdeleteln(win);
+}
+
+int winsdelln(WINDOW *win, int n)
+{
+    int i;
+
+    PDC_LOG(("winsdelln() - called\n"));
+
+    if (!win)
+        return ERR;
+
+    if (n > 0)
+    {
+        for (i = 0; i < n; i++)
+            if (winsertln(win) == ERR)
+                return ERR;
+    }
+    else if (n < 0)
+    {
+        n = -n;
+        for (i = 0; i < n; i++)
+            if (wdeleteln(win) == ERR)
+                return ERR;
+    }
+
+    return OK;
+}
+
+int insdelln(int n)
+{
+    PDC_LOG(("insdelln() - called\n"));
+
+    return winsdelln(stdscr, n);
+}
+
+int winsertln(WINDOW *win)
+{
+    chtype blank, *temp, *end;
+    int y;
+
+    PDC_LOG(("winsertln() - called\n"));
+
+    if (!win)
+        return ERR;
+
+    /* wrs (4/10/93) account for window background */
+
+    blank = win->_bkgd;
+
+    temp = win->_y[win->_maxy - 1];
+
+    for (y = win->_maxy - 1; y > win->_cury; y--)
+    {
+        win->_y[y] = win->_y[y - 1];
+        win->_firstch[y] = 0;
+        win->_lastch[y] = win->_maxx - 1;
+    }
+
+    win->_y[win->_cury] = temp;
+
+    for (end = &temp[win->_maxx - 1]; temp <= end; temp++)
+        *temp = blank;
+
+    win->_firstch[win->_cury] = 0;
+    win->_lastch[win->_cury] = win->_maxx - 1;
+
+    return OK;
+}
+
+int insertln(void)
+{
+    PDC_LOG(("insertln() - called\n"));
+
+    return winsertln(stdscr);
+}
+
+int mvinsertln(int y, int x)
+{
+    PDC_LOG(("mvinsertln() - called\n"));
+
+    if (move(y, x) == ERR)
+        return ERR;
+
+    return winsertln(stdscr);
+}
+
+int mvwinsertln(WINDOW *win, int y, int x)
+{
+    PDC_LOG(("mvwinsertln() - called\n"));
+
+    if (wmove(win, y, x) == ERR)
+        return ERR;
+
+    return winsertln(win);
+}