bin/sh/input.h

   1 /*      $NetBSD: input.h,v 1.14 2002/11/24 22:35:40 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. Neither the name of the University nor the names of its contributors
  19  *    may be used to endorse or promote products derived from this software
  20  *    without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  *
  34  *      @(#)input.h     8.2 (Berkeley) 5/4/95
  35  */
  36
  37 /* PEOF (the end of file marker) is defined in syntax.h */
  38
  39 /*
  40  * The input line number.  Input.c just defines this variable, and saves
  41  * and restores it when files are pushed and popped.  The user of this
  42  * package must set its value.
  43  */
  44 extern int plinno;
  45 extern int parsenleft;          /* number of characters left in input buffer */
  46 extern char *parsenextc;        /* next character in input buffer */
  47 extern int init_editline;       /* 0 == not setup, 1 == OK, -1 == failed */
  48
  49 char *pfgets(char *, int);
  50 int pgetc(void);
  51 int preadbuffer(void);
  52 void pungetc(void);
  53 void pushstring(char *, int, void *);
  54 void popstring(void);
  55 void setinputfile(const char *, int);
  56 void setinputfd(int, int);
  57 void setinputstring(char *, int);
  58 void popfile(void);
  59 void popallfiles(void);
  60 void closescript(int);
  61
  62 #define pgetc_macro()   (--parsenleft >= 0? *parsenextc++ : preadbuffer())