1 #ifndef COND_H 2 #define COND_H 3 /* $OpenPackages$ */ 4 /* $OpenBSD: cond.h,v 1.1 2001/05/23 12:34:41 espie Exp $ */ 5 6 /* 7 * Copyright (c) 2001 Marc Espie. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE OPENBSD PROJECT AND CONTRIBUTORS 19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBSD 22 * PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 /* cond 32 * Parse Makefile conditionals. 33 */ 34 35 /* Values returned by Cond_Eval. */ 36 #define COND_PARSE 0 /* Parse the next lines */ 37 #define COND_SKIP 1 /* Skip the next lines */ 38 #define COND_INVALID 2 /* Not a conditional statement */ 39 40 /* whattodo = Cond_Eval(line); 41 * Parses a conditional expression (without the leading dot), 42 * and returns a decision value. 43 * State is kept internally, since conditionals nest. */ 44 extern int Cond_Eval(const char *); 45 46 /* Cond_End(); 47 * To call at end of parsing, checks that all conditionals were 48 * closed. */ 49 extern void Cond_End(void); 50 51 #endif 52