var.h revision 146134
1/*- 2 * Copyright (c) 2002 Juli Mallett. 3 * Copyright (c) 1988, 1989, 1990, 1993 4 * The Regents of the University of California. All rights reserved. 5 * Copyright (c) 1989 by Berkeley Softworks 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * Adam de Boor. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the University of 22 * California, Berkeley and its contributors. 23 * 4. Neither the name of the University nor the names of its contributors 24 * may be used to endorse or promote products derived from this software 25 * without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 30 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 37 * SUCH DAMAGE. 38 * 39 * $FreeBSD: head/usr.bin/make/var.h 146134 2005-05-12 11:58:39Z harti $ 40 */ 41 42#ifndef var_h_9cccafce 43#define var_h_9cccafce 44 45struct GNode; 46struct Buffer; 47 48/* Variables defined in a global context, e.g in the Makefile itself */ 49extern struct GNode *VAR_GLOBAL; 50 51/* Variables defined on the command line */ 52extern struct GNode *VAR_CMD; 53 54/* 55 * Value returned by Var_Parse when an error is encountered. It actually 56 * points to an empty string, so naive callers needn't worry about it. 57 */ 58extern char var_Error[]; 59 60/* 61 * TRUE if environment should be searched for all variables before 62 * the global context 63 */ 64extern Boolean checkEnvFirst; 65 66/* Do old-style variable substitution */ 67extern Boolean oldVars; 68 69void Var_Append(const char *, const char *, struct GNode *); 70void Var_Delete(const char *, struct GNode *); 71void Var_Dump(void); 72Boolean Var_Exists(const char *, struct GNode *); 73void Var_Init(char **); 74size_t Var_Match(const char [], struct GNode *); 75char *Var_Parse(const char *, struct GNode *, Boolean, size_t *, Boolean *); 76void Var_Set(const char *, const char *, struct GNode *); 77void Var_SetEnv(const char *, struct GNode *); 78struct Buffer *Var_Subst(const char *, struct GNode *, Boolean); 79struct Buffer *Var_SubstOnly(const char *, const char *, Boolean); 80char *Var_Value(const char *, struct GNode *, char **); 81 82#endif /* var_h_9cccafce */ 83