- Add brace around switch statement.
[dragonfly.git] / usr.bin / make / var.h
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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: src/usr.bin/make/var.h,v 1.1 2002/10/28 23:33:57 jmallett Exp $
86c5d5e5 40 * $DragonFly: src/usr.bin/make/var.h,v 1.14 2005/02/08 02:07:03 okumoto Exp $
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41 */
42
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43#ifndef var_h_9cccafce
44#define var_h_9cccafce
45
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46#include <regex.h>
47
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48#include "config.h"
49
50struct GNode;
6a3d9147 51struct Buffer;
9863ce62 52
953a35a5 53typedef struct Var {
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54 char *name; /* the variable's name */
55 struct Buffer *val; /* its value */
56 int flags; /* miscellaneous status flags */
57
58#define VAR_IN_USE 1 /* Variable's value currently being used.
59 * Used to avoid recursion */
60
61#define VAR_FROM_ENV 2 /* Variable comes from the environment */
62
63#define VAR_JUNK 4 /* Variable is a junk variable that
64 * should be destroyed when done with
65 * it. Used by Var_Parse for undefined,
66 * modified variables */
67
68#define VAR_TO_ENV 8 /* Place variable in environment */
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69} Var;
70
71/* Var*Pattern flags */
72#define VAR_SUB_GLOBAL 0x01 /* Apply substitution globally */
73#define VAR_SUB_ONE 0x02 /* Apply substitution to one word */
74#define VAR_SUB_MATCHED 0x04 /* There was a match */
75#define VAR_MATCH_START 0x08 /* Match at start of word */
76#define VAR_MATCH_END 0x10 /* Match at end of word */
77#define VAR_NOSUBST 0x20 /* don't expand vars in VarGetPattern */
78
79typedef struct {
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80 char *lhs; /* String to match */
81 size_t leftLen; /* Length of string */
82 char *rhs; /* Replacement string (w/ &'s removed) */
83 size_t rightLen; /* Length of replacement */
84 int flags;
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85} VarPattern;
86
fbfaa208 87typedef struct {
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88 regex_t re;
89 int nsub;
90 regmatch_t *matches;
91 char *replace;
92 int flags;
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93} VarREPattern;
94
86c5d5e5 95typedef Boolean VarModifyProc(const char *, Boolean, struct Buffer *, void *);
07d5ef71 96
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97/*
98 * var.c
99 */
100void VarREError(int, regex_t *, const char *);
101
102/*
103 * var_modify.c
104 */
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105VarModifyProc VarHead;
106VarModifyProc VarTail;
107VarModifyProc VarSuffix;
108VarModifyProc VarRoot;
109VarModifyProc VarMatch;
953a35a5 110#ifdef SYSVVARSUB
07d5ef71 111VarModifyProc VarSYSVMatch;
953a35a5 112#endif
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113VarModifyProc VarNoMatch;
114VarModifyProc VarRESubstitute;
115VarModifyProc VarSubstitute;
9863ce62 116
7034e6b9 117void Var_Delete(const char *, struct GNode *);
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118void Var_Set(const char *, const char *, struct GNode *);
119void Var_SetEnv(const char *, struct GNode *);
120void Var_Append(const char *, const char *, struct GNode *);
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121Boolean Var_Exists(const char *, struct GNode *);
122char *Var_Value(const char *, struct GNode *, char **);
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123char *Var_Quote(const char *);
124char *Var_Parse(char *, struct GNode *, Boolean, size_t *, Boolean *);
b0ef9278 125struct Buffer *Var_Subst(const char *, const char *, struct GNode *, Boolean);
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126char *Var_GetTail(char *);
127char *Var_GetHead(char *);
128void Var_Init(void);
129void Var_Dump(struct GNode *);
130
131#endif /* var_h_9cccafce */