14b88c807SRodney W. Grimes /*- 24b88c807SRodney W. Grimes * Copyright (c) 1991, 1993 34b88c807SRodney W. Grimes * The Regents of the University of California. All rights reserved. 44b88c807SRodney W. Grimes * 54b88c807SRodney W. Grimes * This code is derived from software contributed to Berkeley by 64b88c807SRodney W. Grimes * Kenneth Almquist. 74b88c807SRodney W. Grimes * 84b88c807SRodney W. Grimes * Redistribution and use in source and binary forms, with or without 94b88c807SRodney W. Grimes * modification, are permitted provided that the following conditions 104b88c807SRodney W. Grimes * are met: 114b88c807SRodney W. Grimes * 1. Redistributions of source code must retain the above copyright 124b88c807SRodney W. Grimes * notice, this list of conditions and the following disclaimer. 134b88c807SRodney W. Grimes * 2. Redistributions in binary form must reproduce the above copyright 144b88c807SRodney W. Grimes * notice, this list of conditions and the following disclaimer in the 154b88c807SRodney W. Grimes * documentation and/or other materials provided with the distribution. 16fbbd9655SWarner Losh * 3. Neither the name of the University nor the names of its contributors 174b88c807SRodney W. Grimes * may be used to endorse or promote products derived from this software 184b88c807SRodney W. Grimes * without specific prior written permission. 194b88c807SRodney W. Grimes * 204b88c807SRodney W. Grimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 214b88c807SRodney W. Grimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 224b88c807SRodney W. Grimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 234b88c807SRodney W. Grimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 244b88c807SRodney W. Grimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 254b88c807SRodney W. Grimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 264b88c807SRodney W. Grimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 274b88c807SRodney W. Grimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 284b88c807SRodney W. Grimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 294b88c807SRodney W. Grimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 304b88c807SRodney W. Grimes * SUCH DAMAGE. 314b88c807SRodney W. Grimes */ 324b88c807SRodney W. Grimes 334b88c807SRodney W. Grimes /* PEOF (the end of file marker) is defined in syntax.h */ 344b88c807SRodney W. Grimes 354b88c807SRodney W. Grimes /* 364b88c807SRodney W. Grimes * The input line number. Input.c just defines this variable, and saves 374b88c807SRodney W. Grimes * and restores it when files are pushed and popped. The user of this 384b88c807SRodney W. Grimes * package must set its value. 394b88c807SRodney W. Grimes */ 404b88c807SRodney W. Grimes extern int plinno; 414b88c807SRodney W. Grimes extern int parsenleft; /* number of characters left in input buffer */ 4246c6b52dSJilles Tjoelker extern const char *parsenextc; /* next character in input buffer */ 434b88c807SRodney W. Grimes 4435dab859SJilles Tjoelker struct alias; 45eaa34893SJilles Tjoelker struct parsefile; 46eaa34893SJilles Tjoelker 47338b821bSJilles Tjoelker void resetinput(void); 485134c3f7SWarner Losh int pgetc(void); 495134c3f7SWarner Losh int preadbuffer(void); 50960da934SJilles Tjoelker int preadateof(void); 515134c3f7SWarner Losh void pungetc(void); 525545faddSJilles Tjoelker void pushstring(const char *, int, struct alias *); 53*d2c23317SStephane Rochoy void setinputfile(const char *, int, int); 545134c3f7SWarner Losh void setinputfd(int, int); 5546c6b52dSJilles Tjoelker void setinputstring(const char *, int); 565134c3f7SWarner Losh void popfile(void); 57eaa34893SJilles Tjoelker struct parsefile *getcurrentfile(void); 58eaa34893SJilles Tjoelker void popfilesupto(struct parsefile *); 595134c3f7SWarner Losh void popallfiles(void); 605134c3f7SWarner Losh void closescript(void); 614b88c807SRodney W. Grimes 624b88c807SRodney W. Grimes #define pgetc_macro() (--parsenleft >= 0? *parsenextc++ : preadbuffer()) 63