input.h revision 17987
11556Srgrimes/*- 21556Srgrimes * Copyright (c) 1991, 1993 31556Srgrimes * The Regents of the University of California. All rights reserved. 41556Srgrimes * 51556Srgrimes * This code is derived from software contributed to Berkeley by 61556Srgrimes * Kenneth Almquist. 71556Srgrimes * 81556Srgrimes * Redistribution and use in source and binary forms, with or without 91556Srgrimes * modification, are permitted provided that the following conditions 101556Srgrimes * are met: 111556Srgrimes * 1. Redistributions of source code must retain the above copyright 121556Srgrimes * notice, this list of conditions and the following disclaimer. 131556Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 141556Srgrimes * notice, this list of conditions and the following disclaimer in the 151556Srgrimes * documentation and/or other materials provided with the distribution. 161556Srgrimes * 3. All advertising materials mentioning features or use of this software 171556Srgrimes * must display the following acknowledgement: 181556Srgrimes * This product includes software developed by the University of 191556Srgrimes * California, Berkeley and its contributors. 201556Srgrimes * 4. Neither the name of the University nor the names of its contributors 211556Srgrimes * may be used to endorse or promote products derived from this software 221556Srgrimes * without specific prior written permission. 231556Srgrimes * 241556Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 251556Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 261556Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 271556Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 281556Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 291556Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 301556Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 311556Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 321556Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 331556Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 341556Srgrimes * SUCH DAMAGE. 351556Srgrimes * 3617987Speter * @(#)input.h 8.2 (Berkeley) 5/4/95 3717987Speter * $Id: input.h,v 1.2 1994/09/24 02:57:40 davidg Exp $ 381556Srgrimes */ 391556Srgrimes 401556Srgrimes/* PEOF (the end of file marker) is defined in syntax.h */ 411556Srgrimes 421556Srgrimes/* 431556Srgrimes * The input line number. Input.c just defines this variable, and saves 441556Srgrimes * and restores it when files are pushed and popped. The user of this 451556Srgrimes * package must set its value. 461556Srgrimes */ 471556Srgrimesextern int plinno; 481556Srgrimesextern int parsenleft; /* number of characters left in input buffer */ 491556Srgrimesextern char *parsenextc; /* next character in input buffer */ 501556Srgrimesextern int init_editline; /* 0 == not setup, 1 == OK, -1 == failed */ 511556Srgrimes 5217987Speterchar *pfgets __P((char *, int)); 5317987Speterint pgetc __P((void)); 5417987Speterint preadbuffer __P((void)); 5517987Spetervoid pungetc __P((void)); 5617987Spetervoid pushstring __P((char *, int, void *)); 5717987Spetervoid popstring __P((void)); 5817987Spetervoid setinputfile __P((char *, int)); 5917987Spetervoid setinputfd __P((int, int)); 6017987Spetervoid setinputstring __P((char *, int)); 6117987Spetervoid popfile __P((void)); 6217987Spetervoid popallfiles __P((void)); 6317987Spetervoid closescript __P((void)); 641556Srgrimes 651556Srgrimes#define pgetc_macro() (--parsenleft >= 0? *parsenextc++ : preadbuffer()) 66