1 /* $NetBSD: input.h,v 1.21 2018/08/19 23:50:27 kre 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 const char *parsenextc; /* next character in input buffer */ 47 extern int init_editline; /* 0 == not setup, 1 == OK, -1 == failed */ 48 extern int whichprompt; /* 1 ==> PS1, 2 ==> PS2 */ 49 50 struct alias; 51 struct parsefile; 52 53 char *pfgets(char *, int); 54 int pgetc(void); 55 int preadbuffer(void); 56 int at_eof(void); 57 void pungetc(void); 58 void pushstring(const char *, int, struct alias *); 59 void popstring(void); 60 void setinputfile(const char *, int); 61 void setinputfd(int, int); 62 void setinputstring(char *, int, int); 63 void popfile(void); 64 struct parsefile *getcurrentfile(void); 65 void popfilesupto(struct parsefile *); 66 void popallfiles(void); 67 void closescript(int); 68 69 #define pgetc_macro() (--parsenleft >= 0? *parsenextc++ : preadbuffer()) 70