2 * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
3 * See the copyright notice in the ACK home directory, in the file "Copyright".
5 /* $Id: input.h,v 1.3 1994/06/27 08:00:21 ceriel Exp $ */
8 #include <inp_pkg.spec>
10 /* Note: The following macro only garuantees one PushBack.
12 #define UnGetChar() ((LexSave != EOI) ? ChPushBack(LexSave) : 0)
14 extern int LexSave; /* last character read by GetChar */
15 extern int GetChar(); /* character input, with trigraph parsing */