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
53 char *name; /* the variable's name */
54 struct Buffer *val; /* its value */
55 int flags; /* miscellaneous status flags */
57 #define VAR_IN_USE 1 /* Variable's value currently being used.
58 * Used to avoid recursion */
60 #define VAR_FROM_ENV 2 /* Variable comes from the environment */
62 #define VAR_JUNK 4 /* Variable is a junk variable that
63 * should be destroyed when done with
64 * it. Used by Var_Parse for undefined,
65 * modified variables */
68 /* Var*Pattern flags */
69 #define VAR_SUB_GLOBAL 0x01 /* Apply substitution globally */
70 #define VAR_SUB_ONE 0x02 /* Apply substitution to one word */
71 #define VAR_SUB_MATCHED 0x04 /* There was a match */
72 #define VAR_MATCH_START 0x08 /* Match at start of word */
73 #define VAR_MATCH_END 0x10 /* Match at end of word */
74 #define VAR_NOSUBST 0x20 /* don't expand vars in VarGetPattern */
77 char *lhs; /* String to match */
78 size_t leftLen; /* Length of string */
79 char *rhs; /* Replacement string (w/ &'s removed) */
80 size_t rightLen; /* Length of replacement */
92 typedef Boolean VarModifyProc(const char *, Boolean, struct Buffer *, void *);
97 void VarREError(int, regex_t *, const char *);
102 VarModifyProc VarHead;
103 VarModifyProc VarTail;
104 VarModifyProc VarSuffix;
105 VarModifyProc VarRoot;
106 VarModifyProc VarMatch;
108 VarModifyProc VarSYSVMatch;
110 VarModifyProc VarNoMatch;
111 VarModifyProc VarRESubstitute;
112 VarModifyProc VarSubstitute;
114 void Var_Delete(const char *, struct GNode *);
115 void Var_Set(const char *, const char *, struct GNode *);
116 void Var_Append(const char *, const char *, struct GNode *);
117 Boolean Var_Exists(const char *, struct GNode *);
118 char *Var_Value(const char *, struct GNode *, char **);
119 char *Var_Quote(const char *);
120 char *Var_Parse(char *, struct GNode *, Boolean, size_t *, Boolean *);
121 char *Var_Subst(const char *, char *, struct GNode *, Boolean);
122 char *Var_GetTail(char *);
123 char *Var_GetHead(char *);
125 void Var_Dump(struct GNode *);
127 #endif /* var_h_9cccafce */