/****************************************************************//* Unctrl() routines of the PCcurses package			*//*								*//****************************************************************//* This version of curses is based on ncurses, a curses version	*//* Originally written by Pavel Curtis at Cornell University.	*//* I have made substantial changes to make it run on IBM PC's,	*//* And therefore consider myself free to make it public domain.	*//*		Bjorn Larsson (...mcvax!enea!infovax!bl)	*//****************************************************************//* 1.0:	Release:					870515	*//****************************************************************//* Modified to run under the MINIX operating system by Don Cope *//* These changes are also released into the public domain.      *//* 							900906  *//****************************************************************/#include <curses.h>#include "curspriv.h"static char strbuf[3] = {0, 0, 0};/****************************************************************//* Unctrl() returns a char pointer to a string corresponding to	*//* Argument character 'c'.					*//****************************************************************/char *unctrl(c)char c;{  int ic = c;  ic &= 0xff;  if ((ic >= ' ') && (ic != 0x7f)) {	/* normal characters */	strbuf[0] = ic;	strbuf[1] = '\0';	return(strbuf);  }				/* if */  strbuf[0] = '^';		/* '^' prefix */  if (c == 0x7f)		/* DEL */	strbuf[1] = '?';  else				/* other control */	strbuf[1] = ic + '@';  return(strbuf);}				/* unctrl */