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
8 * This code is derived from software contributed to Berkeley by
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
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.
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
42 #ifndef var_h_9cccafce
43 #define var_h_9cccafce
49 /* Variables defined in a global context, e.g in the Makefile itself */
50 extern struct GNode *VAR_GLOBAL;
52 /* Variables defined on the command line */
53 extern struct GNode *VAR_CMD;
56 * Value returned by Var_Parse when an error is encountered. It actually
57 * points to an empty string, so naive callers needn't worry about it.
59 extern char var_Error[];
62 * TRUE if environment should be searched for all variables before
65 extern Boolean checkEnvFirst;
67 /* Do old-style variable substitution */
68 extern Boolean oldVars;
70 void Var_Append(const char *, const char *, struct GNode *);
71 void Var_Delete(const char *, struct GNode *);
73 Boolean Var_Exists(const char *, struct GNode *);
74 void Var_Init(char **);
75 size_t Var_Match(const char [], struct GNode *);
76 char *Var_Parse(const char *, struct GNode *, Boolean, size_t *, Boolean *);
77 void Var_Print(struct Lst *, Boolean);
78 void Var_Set(const char *, const char *, struct GNode *);
79 void Var_SetGlobal(const char *, const char *);
80 void Var_SetEnv(const char *, struct GNode *);
81 struct Buffer *Var_Subst(const char *, struct GNode *, Boolean);
82 struct Buffer *Var_SubstOnly(const char *, const char *, Boolean);
83 const char *Var_Value(const char [], struct GNode *);
85 #endif /* var_h_9cccafce */