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input.h revision 1.8 
      1 /*	$NetBSD: input.h,v 1.8 1995/05/11 21:29:16 christos Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1991, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * This code is derived from software contributed to Berkeley by
      8  * Kenneth Almquist.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by the University of
     21  *	California, Berkeley and its contributors.
     22  * 4. Neither the name of the University nor the names of its contributors
     23  *    may be used to endorse or promote products derived from this software
     24  *    without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     36  * SUCH DAMAGE.
     37  *
     38  *	@(#)input.h	8.2 (Berkeley) 5/4/95
     39  */
     40 
     41 /* PEOF (the end of file marker) is defined in syntax.h */
     42 
     43 /*
     44  * The input line number.  Input.c just defines this variable, and saves
     45  * and restores it when files are pushed and popped.  The user of this
     46  * package must set its value.
     47  */
     48 extern int plinno;
     49 extern int parsenleft;		/* number of characters left in input buffer */
     50 extern char *parsenextc;	/* next character in input buffer */
     51 extern int init_editline;	/* 0 == not setup, 1 == OK, -1 == failed */
     52 
     53 char *pfgets __P((char *, int));
     54 int pgetc __P((void));
     55 int preadbuffer __P((void));
     56 void pungetc __P((void));
     57 void pushstring __P((char *, int, void *));
     58 void popstring __P((void));
     59 void setinputfile __P((char *, int));
     60 void setinputfd __P((int, int));
     61 void setinputstring __P((char *, int));
     62 void popfile __P((void));
     63 void popallfiles __P((void));
     64 void closescript __P((void));
     65 
     66 #define pgetc_macro()	(--parsenleft >= 0? *parsenextc++ : preadbuffer())
     67