- Reduce white space diffs after harti commited my change to FreeBSD.
[dragonfly.git] / usr.bin / make / buf.h
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edf6dd37 1/*-
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2 * Copyright (c) 1988, 1989, 1990, 1993
3 * The Regents of the University of California. All rights reserved.
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4 * Copyright (c) 1988, 1989 by Adam de Boor
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 * from: @(#)buf.h 8.1 (Berkeley) 6/6/93
40 * $FreeBSD: src/usr.bin/make/buf.h,v 1.9 1999/08/28 01:03:26 peter Exp $
fa8e78c0 41 * $DragonFly: src/usr.bin/make/buf.h,v 1.27 2005/02/07 20:09:45 okumoto Exp $
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42 */
43
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44#ifndef buf_h_a61a6812
45#define buf_h_a61a6812
46
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47/*-
48 * buf.h --
49 * Header for users of the buf library.
50 */
51
9863ce62 52#include <sys/types.h>
984263bc 53
1e609a21 54#include "sprite.h"
984263bc 55
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56/*
57 * There are several places where expandable buffers are used (parse.c and
58 * var.c). This constant is merely the starting point for those buffers. If
59 * lines tend to be much shorter than this, it would be best to reduce BSIZE.
60 * If longer, it should be increased. Reducing it will cause more copying to
61 * be done for longer lines, but will save space for shorter ones. In any
62 * case, it ought to be a power of two simply because most storage allocation
63 * schemes allocate in powers of two.
64 */
65#define MAKE_BSIZE 256 /* starting size for expandable buffers */
66
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67#define BUF_DEF_SIZE 256 /* Default buffer size */
68#define BUF_ADD_INC 256 /* Expansion increment when Adding */
9863ce62 69
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70typedef char Byte;
71
72typedef struct Buffer {
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73 size_t size; /* Current size of the buffer */
74 Byte *buf; /* The buffer itself */
75 Byte *end; /* Place to write to */
6a3d9147 76} Buffer;
984263bc 77
f3d85b3c 78void Buf_AddByte(Buffer *, Byte);
6a3d9147 79void Buf_AddBytes(Buffer *, size_t, const Byte *);
6a3d9147 80Byte *Buf_GetAll(Buffer *, size_t *);
0964826d 81void Buf_Clear(Buffer *);
e03e8291 82size_t Buf_Size(const Buffer *);
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83Buffer *Buf_Init(size_t);
84void Buf_Destroy(Buffer *, Boolean);
85void Buf_ReplaceLastByte(Buffer *, Byte);
984263bc 86
fcf95e9c 87void Buf_Append(Buffer *, const char []);
76b1c519 88void Buf_AppendRange(Buffer *, const char [], const char *);
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89void Buf_StripNewlines(Buffer *);
90
9863ce62 91#endif /* buf_h_a61a6812 */