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  1. /*  $NetBSD: input.h,v 1.12 2000/05/22 10:18:47 elric 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 (char *, int);
  54. int pgetc (void);
  55. int preadbuffer (void);
  56. void pungetc (void);
  57. void pushstring (char *, int, void *);
  58. void popstring (void);
  59. void setinputfile (const char *, int);
  60. void setinputfd (int, int);
  61. void setinputstring (char *, int);
  62. void popfile (void);
  63. void popallfiles (void);
  64. void closescript (void);
  65.  
  66. #define pgetc_macro()   (--parsenleft >= 0? *parsenextc++ : preadbuffer())
  67.