xref: /openbsd-src/lib/libcurses/base/lib_nl.c (revision c7ef0cfc17afcba97172c25e1e3a943e893bc632)
1 /* $OpenBSD: lib_nl.c,v 1.7 2023/10/17 09:52:08 nicm Exp $ */
2 
3 /****************************************************************************
4  * Copyright 2020,2023 Thomas E. Dickey                                     *
5  * Copyright 1998-2000,2009 Free Software Foundation, Inc.                  *
6  *                                                                          *
7  * Permission is hereby granted, free of charge, to any person obtaining a  *
8  * copy of this software and associated documentation files (the            *
9  * "Software"), to deal in the Software without restriction, including      *
10  * without limitation the rights to use, copy, modify, merge, publish,      *
11  * distribute, distribute with modifications, sublicense, and/or sell       *
12  * copies of the Software, and to permit persons to whom the Software is    *
13  * furnished to do so, subject to the following conditions:                 *
14  *                                                                          *
15  * The above copyright notice and this permission notice shall be included  *
16  * in all copies or substantial portions of the Software.                   *
17  *                                                                          *
18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
21  * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
22  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
23  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
24  * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
25  *                                                                          *
26  * Except as contained in this notice, the name(s) of the above copyright   *
27  * holders shall not be used in advertising or otherwise to promote the     *
28  * sale, use or other dealings in this Software without prior written       *
29  * authorization.                                                           *
30  ****************************************************************************/
31 
32 /****************************************************************************
33  *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
34  *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
35  *     and: Thomas E. Dickey                        1996-on                 *
36  *     and: Juergen Pfeifer                         2009                    *
37  ****************************************************************************/
38 
39 /*
40  *	nl.c
41  *
42  *	Routines:
43  *		nl()
44  *		nonl()
45  *
46  */
47 
48 #include <curses.priv.h>
49 
50 MODULE_ID("$Id: lib_nl.c,v 1.7 2023/10/17 09:52:08 nicm Exp $")
51 
52 #ifdef __EMX__
53 #include <io.h>
54 #endif
55 
NCURSES_EXPORT(int)56 NCURSES_EXPORT(int)
57 NCURSES_SP_NAME(nl) (NCURSES_SP_DCL0)
58 {
59     T((T_CALLED("nl(%p)"), (void *) SP_PARM));
60     if (0 == SP_PARM)
61 	returnCode(ERR);
62     IsNl(SP_PARM) = TRUE;
63 #ifdef __EMX__
64     _nc_flush();
65     _fsetmode(NC_OUTPUT(SP_PARM), "t");
66 #endif
67     returnCode(OK);
68 }
69 
70 #if NCURSES_SP_FUNCS
71 NCURSES_EXPORT(int)
nl(void)72 nl(void)
73 {
74     return NCURSES_SP_NAME(nl) (CURRENT_SCREEN);
75 }
76 #endif
77 
78 NCURSES_EXPORT(int)
NCURSES_SP_NAME(nonl)79 NCURSES_SP_NAME(nonl) (NCURSES_SP_DCL0)
80 {
81     T((T_CALLED("nonl(%p)"), (void *) SP_PARM));
82     if (0 == SP_PARM)
83 	returnCode(ERR);
84     IsNl(SP_PARM) = FALSE;
85 #ifdef __EMX__
86     _nc_flush();
87     _fsetmode(NC_OUTPUT(SP_PARM), "b");
88 #endif
89     returnCode(OK);
90 }
91 
92 #if NCURSES_SP_FUNCS
93 NCURSES_EXPORT(int)
nonl(void)94 nonl(void)
95 {
96     return NCURSES_SP_NAME(nonl) (CURRENT_SCREEN);
97 }
98 #endif
99