src/terminfo.c

   1 /* Interface from Emacs to terminfo.
   2    Copyright (C) 1985-1986, 2001-2017 Free Software Foundation, Inc.
   3
   4 This file is part of GNU Emacs.
   5
   6 GNU Emacs is free software: you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation, either version 3 of the License, or (at
   9 your option) any later version.
  10
  11 GNU Emacs is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
  18
  19 #include <config.h>
  20 #include "tparam.h"
  21
  22 #include "lisp.h"
  23
  24 /* Define these variables that serve as global parameters to termcap,
  25    so that we do not need to conditionalize the places in Emacs
  26    that set them.  */
  27
  28 char *UP, *BC, PC;
  29
  30 /* Interface to curses/terminfo library.
  31    Turns out that all of the terminfo-level routines look
  32    like their termcap counterparts except for tparm, which replaces
  33    tgoto.  Not only is the calling sequence different, but the string
  34    format is different too.
  35 */
  36
  37 extern char *tparm (const char *str, ...);
  38
  39
  40 char *
  41 tparam (const char *string, char *outstring, int len,
  42         int arg1, int arg2, int arg3, int arg4)
  43 {
  44   char *temp;
  45
  46   /* Emacs always should pass a null OUTSTRING and zero LEN.  */
  47   if (outstring || len)
  48     emacs_abort ();
  49
  50   temp = tparm (string, arg1, arg2, arg3, arg4);
  51   return xstrdup (temp);
  52 }