1 /**************************************************************************** 2 * Copyright (c) 1998-2009,2012 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 42 MODULE_ID("$Id: lib_tracechr.c,v 1.22 2012/02/22 22:40:24 tom Exp $") 43 44 #ifdef TRACE 45 46 #define MyBufSize sizeof(_nc_globals.tracechr_buf) 47 48 NCURSES_EXPORT(char *) 49 _nc_tracechar(SCREEN *sp, int ch) 50 { 51 NCURSES_CONST char *name; 52 char *MyBuffer = ((sp != 0) 53 ? sp->tracechr_buf 54 : _nc_globals.tracechr_buf); 55 56 if (ch > KEY_MIN || ch < 0) { 57 name = safe_keyname(SP_PARM, ch); 58 if (name == 0 || *name == '\0') 59 name = "NULL"; 60 _nc_SPRINTF(MyBuffer, _nc_SLIMIT(MyBufSize) 61 "'%.30s' = %#03o", name, ch); 62 } else if (!is8bits(ch) || !isprint(UChar(ch))) { 63 /* 64 * workaround for glibc bug: 65 * sprintf changes the result from unctrl() to an empty string if it 66 * does not correspond to a valid multibyte sequence. 67 */ 68 _nc_SPRINTF(MyBuffer, _nc_SLIMIT(MyBufSize) 69 "%#03o", ch); 70 } else { 71 name = safe_unctrl(SP_PARM, (chtype) ch); 72 if (name == 0 || *name == 0) 73 name = "null"; /* shouldn't happen */ 74 _nc_SPRINTF(MyBuffer, _nc_SLIMIT(MyBufSize) 75 "'%.30s' = %#03o", name, ch); 76 } 77 return (MyBuffer); 78 } 79 80 NCURSES_EXPORT(char *) 81 _tracechar(int ch) 82 { 83 return _nc_tracechar(CURRENT_SCREEN, ch); 84 } 85 #else 86 EMPTY_MODULE(_nc_lib_tracechr) 87 #endif 88