/* version.c by Michael Hanson */
/* you may use this, but not for profit, and give me credit */ 
/* esc - map string into escaped character if appropriate */

char esc(s,i)
register char s[];
int *i;
{
	int index();
	static char real[] = " \\\b\t\v\f\n\r\(\!\)\^";
	static char symb[] = "s\\btvfnr(!)^";

	if(s[*i] != '\\')
		return s[*i];
	if(s[*i] == '\0')  /* not special at end */
		return '\\';
	(*i)++;
	real[sizeof(real)-1] = s[*i];
	return real[index(symb, s[*i])];
}