1 #ifndef COND_H 2 #define COND_H 3 /* $OpenBSD: cond.h,v 1.5 2010/07/19 19:46:44 espie Exp $ */ 4 5 /* 6 * Copyright (c) 2001 Marc Espie. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE OPENBSD PROJECT AND CONTRIBUTORS 18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 20 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBSD 21 * PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 22 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 23 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 /* cond 31 * Parse Makefile conditionals. 32 */ 33 34 /* Values returned by Cond_Eval. */ 35 #define COND_PARSE 0 /* Parse the next lines */ 36 #define COND_SKIP 1 /* Skip the next lines */ 37 #define COND_INVALID 2 /* Not a conditional statement */ 38 #define COND_ISFOR 3 39 #define COND_ISUNDEF 4 40 #define COND_ISINCLUDE 5 41 #define COND_ISPOISON 6 42 43 /* whattodo = Cond_Eval(line); 44 * Parses a conditional expression (without the leading dot), 45 * and returns a decision value. 46 * State is kept internally, since conditionals nest. */ 47 extern int Cond_Eval(const char *); 48 49 /* Cond_End(); 50 * To call at end of parsing, checks that all conditionals were 51 * closed. */ 52 extern void Cond_End(void); 53 54 #endif 55