lib/libcurses/meta.c

   1 /*      $NetBSD: meta.c,v 1.8 2011/08/07 10:52:18 blymn Exp $   */
   2
   3 /*-
   4  * Copyright (c) 1998-2000 Brett Lymn
   5  *                         (blymn@baea.com.au, brett_lymn@yahoo.com.au)
   6  * All rights reserved.
   7  *
   8  * This code has been donated to The NetBSD Foundation by the Author.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. The name of the author may not be used to endorse or promote products
  16  *    derived from this software without specific prior written permission
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  *
  29  *
  30  */
  31
  32 #include <sys/cdefs.h>
  33 #ifndef lint
  34 __RCSID("$NetBSD: meta.c,v 1.8 2011/08/07 10:52:18 blymn Exp $");
  35 #endif                          /* not lint */
  36
  37 #include "curses.h"
  38 #include "curses_private.h"
  39
  40 /*
  41  * meta --
  42  *    Turn on or off the terminal meta mode.
  43  */
  44 int
  45 meta(/*ARGSUSED*/ WINDOW *win, bool bf)
  46 {
  47         if (bf == TRUE) {
  48                 if (meta_on != NULL) {
  49 #ifdef DEBUG
  50                         __CTRACE(__CTRACE_MISC, "meta: TRUE\n");
  51 #endif
  52                         tputs(meta_on, 0, __cputchar);
  53                         _cursesi_screen->meta_state = TRUE;
  54                         fflush(_cursesi_screen->outfd);
  55                 }
  56         } else {
  57                 if (meta_off != NULL) {
  58 #ifdef DEBUG
  59                         __CTRACE(__CTRACE_MISC, "meta: FALSE\n");
  60 #endif
  61                         tputs(meta_off, 0, __cputchar);
  62                         _cursesi_screen->meta_state = FALSE;
  63                         fflush(_cursesi_screen->outfd);
  64                 }
  65         }
  66
  67         return OK;
  68 }
  69
  70 /*
  71  * __restore_meta_state --
  72  *    Restore old meta state.
  73  */
  74 void
  75 __restore_meta_state(void)
  76 {
  77         meta(NULL, _cursesi_screen->meta_state);
  78 }
  79