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/* $OpenBSD: lib_tracechr.c,v 1.2 1997/12/03 05:21:36 millert Exp $ */
/***************************************************************************
* COPYRIGHT NOTICE *
****************************************************************************
* ncurses is copyright (C) 1992-1995 *
* Zeyd M. Ben-Halim *
* zmbenhal@netcom.com *
* Eric S. Raymond *
* esr@snark.thyrsus.com *
* *
* Permission is hereby granted to reproduce and distribute ncurses *
* by any means and for any fee, whether alone or as part of a *
* larger distribution, in source or in binary form, PROVIDED *
* this notice is included with any such distribution, and is not *
* removed from any of its header files. Mention of ncurses in any *
* applications linked with it is highly appreciated. *
* *
* ncurses comes AS IS with no warranty, implied or expressed. *
* *
***************************************************************************/
/*
* lib_tracechr.c - Tracing/Debugging routines
*/
#ifndef TRACE
#define TRACE /* turn on internal defs for this module */
#endif
#include <curses.priv.h>
#include <ctype.h>
char *_tracechar(const unsigned char ch)
{
static char crep[20];
/*
* We can show the actual character if it's either an ordinary printable
* or one of the high-half characters.
*/
if (isprint(ch) || (ch & 0x80))
{
crep[0] = '\'';
crep[1] = ch; /* necessary; printf tries too hard on metachars */
(void) sprintf(crep + 2, "' = 0x%02x", (unsigned)ch);
}
else
(void) sprintf(crep, "0x%02x", (unsigned)ch);
return(crep);
}
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