1 /**************************************************************************** 2 * Copyright 2020 Thomas E. Dickey * 3 * Copyright 1998-2009,2012 Free Software Foundation, Inc. * 4 * * 5 * Permission is hereby granted, free of charge, to any person obtaining a * 6 * copy of this software and associated documentation files (the * 7 * "Software"), to deal in the Software without restriction, including * 8 * without limitation the rights to use, copy, modify, merge, publish, * 9 * distribute, distribute with modifications, sublicense, and/or sell * 10 * copies of the Software, and to permit persons to whom the Software is * 11 * furnished to do so, subject to the following conditions: * 12 * * 13 * The above copyright notice and this permission notice shall be included * 14 * in all copies or substantial portions of the Software. * 15 * * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 19 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 22 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 23 * * 24 * Except as contained in this notice, the name(s) of the above copyright * 25 * holders shall not be used in advertising or otherwise to promote the * 26 * sale, use or other dealings in this Software without prior written * 27 * authorization. * 28 ****************************************************************************/ 29 30 /**************************************************************************** 31 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * 32 * and: Eric S. Raymond <esr@snark.thyrsus.com> * 33 * and: Thomas E. Dickey 1996-on * 34 ****************************************************************************/ 35 36 /* 37 * lib_tracechr.c - Tracing/Debugging routines 38 */ 39 #include <curses.priv.h> 40 41 #include <ctype.h> 42 43 MODULE_ID("$Id: lib_tracechr.c,v 1.23 2020/02/02 23:34:34 tom Exp $") 44 45 #ifdef TRACE 46 47 #define MyBufSize sizeof(_nc_globals.tracechr_buf) 48 49 NCURSES_EXPORT(char *) 50 _nc_tracechar(SCREEN *sp, int ch) 51 { 52 NCURSES_CONST char *name; 53 char *MyBuffer = ((sp != 0) 54 ? sp->tracechr_buf 55 : _nc_globals.tracechr_buf); 56 57 if (ch > KEY_MIN || ch < 0) { 58 name = safe_keyname(SP_PARM, ch); 59 if (name == 0 || *name == '\0') 60 name = "NULL"; 61 _nc_SPRINTF(MyBuffer, _nc_SLIMIT(MyBufSize) 62 "'%.30s' = %#03o", name, ch); 63 } else if (!is8bits(ch) || !isprint(UChar(ch))) { 64 /* 65 * workaround for glibc bug: 66 * sprintf changes the result from unctrl() to an empty string if it 67 * does not correspond to a valid multibyte sequence. 68 */ 69 _nc_SPRINTF(MyBuffer, _nc_SLIMIT(MyBufSize) 70 "%#03o", ch); 71 } else { 72 name = safe_unctrl(SP_PARM, (chtype) ch); 73 if (name == 0 || *name == 0) 74 name = "null"; /* shouldn't happen */ 75 _nc_SPRINTF(MyBuffer, _nc_SLIMIT(MyBufSize) 76 "'%.30s' = %#03o", name, ch); 77 } 78 return (MyBuffer); 79 } 80 81 NCURSES_EXPORT(char *) 82 _tracechar(int ch) 83 { 84 return _nc_tracechar(CURRENT_SCREEN, ch); 85 } 86 #else 87 EMPTY_MODULE(_nc_lib_tracechr) 88 #endif 89