1/****************************************************************************
2 * Copyright (c) 1998-2007,2008 Free Software Foundation, Inc.              *
3 *                                                                          *
4 * Permission is hereby granted, free of charge, to any person obtaining a  *
5 * copy of this software and associated documentation files (the            *
6 * "Software"), to deal in the Software without restriction, including      *
7 * without limitation the rights to use, copy, modify, merge, publish,      *
8 * distribute, distribute with modifications, sublicense, and/or sell       *
9 * copies of the Software, and to permit persons to whom the Software is    *
10 * furnished to do so, subject to the following conditions:                 *
11 *                                                                          *
12 * The above copyright notice and this permission notice shall be included  *
13 * in all copies or substantial portions of the Software.                   *
14 *                                                                          *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
22 *                                                                          *
23 * Except as contained in this notice, the name(s) of the above copyright   *
24 * holders shall not be used in advertising or otherwise to promote the     *
25 * sale, use or other dealings in this Software without prior written       *
26 * authorization.                                                           *
27 ****************************************************************************/
28
29/****************************************************************************
30 *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
31 *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
32 *     and: Thomas E. Dickey                        1996-on                 *
33 ****************************************************************************/
34
35/*
36 *	lib_tracechr.c - Tracing/Debugging routines
37 */
38#include <curses.priv.h>
39
40#include <ctype.h>
41
42MODULE_ID("$Id: lib_tracechr.c,v 1.19 2008/08/03 15:39:29 tom Exp $")
43
44#ifdef TRACE
45
46NCURSES_EXPORT(char *)
47_nc_tracechar(SCREEN *sp, int ch)
48{
49    NCURSES_CONST char *name;
50    char *MyBuffer = ((sp != 0)
51		      ? sp->tracechr_buf
52		      : _nc_globals.tracechr_buf);
53
54    if (ch > KEY_MIN || ch < 0) {
55	name = _nc_keyname(sp, ch);
56	if (name == 0 || *name == '\0')
57	    name = "NULL";
58	(void) sprintf(MyBuffer, "'%.30s' = %#03o", name, ch);
59    } else if (!is8bits(ch) || !isprint(UChar(ch))) {
60	/*
61	 * workaround for glibc bug:
62	 * sprintf changes the result from unctrl() to an empty string if it
63	 * does not correspond to a valid multibyte sequence.
64	 */
65	(void) sprintf(MyBuffer, "%#03o", ch);
66    } else {
67	name = _nc_unctrl(sp, (chtype) ch);
68	if (name == 0 || *name == 0)
69	    name = "null";	/* shouldn't happen */
70	(void) sprintf(MyBuffer, "'%.30s' = %#03o", name, ch);
71    }
72    return (MyBuffer);
73}
74
75NCURSES_EXPORT(char *)
76_tracechar(int ch)
77{
78    return _nc_tracechar(SP, ch);
79}
80#else
81EMPTY_MODULE(_nc_lib_tracechr)
82#endif
83