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Diffstat (limited to 'usr.bin/make/buf.h')
| -rw-r--r-- | usr.bin/make/buf.h | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/usr.bin/make/buf.h b/usr.bin/make/buf.h new file mode 100644 index 000000000000..106f34884897 --- /dev/null +++ b/usr.bin/make/buf.h @@ -0,0 +1,92 @@ +/*- + * Copyright (c) 1988, 1989, 1990, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1988, 1989 by Adam de Boor + * Copyright (c) 1989 by Berkeley Softworks + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Adam de Boor. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)buf.h 8.2 (Berkeley) 4/28/95 + * $FreeBSD$ + */ + +#ifndef buf_h_a61a6812 +#define buf_h_a61a6812 + +/*- + * buf.h -- + * Header for users of the buf library. + */ + +#include <sys/types.h> + +#include "util.h" + +/* + * There are several places where expandable buffers are used (parse.c and + * var.c). This constant is merely the starting point for those buffers. If + * lines tend to be much shorter than this, it would be best to reduce BSIZE. + * If longer, it should be increased. Reducing it will cause more copying to + * be done for longer lines, but will save space for shorter ones. In any + * case, it ought to be a power of two simply because most storage allocation + * schemes allocate in powers of two. + */ +#define MAKE_BSIZE 256 /* starting size for expandable buffers */ + +#define BUF_DEF_SIZE 256 /* Default buffer size */ +#define BUF_ADD_INC 256 /* Expansion increment when Adding */ + +typedef char Byte; + +typedef struct Buffer { + size_t size; /* Current size of the buffer */ + Byte *buf; /* The buffer itself */ + Byte *end; /* Place to write to */ +} Buffer; + +void Buf_AddByte(Buffer *, Byte); +void Buf_AddBytes(Buffer *, size_t, const Byte *); +void Buf_Append(Buffer *, const char []); +void Buf_AppendBuf(Buffer *, const Buffer *); +void Buf_AppendRange(Buffer *, const char [], const char *); +void Buf_Clear(Buffer *); +char *Buf_Data(const Buffer *); +void Buf_Destroy(Buffer *, Boolean); +Byte *Buf_GetAll(Buffer *, size_t *); +Buffer *Buf_Init(size_t); +char *Buf_Peel(Buffer *); +void Buf_ReplaceLastByte(Buffer *, Byte); +size_t Buf_Size(const Buffer *); +void Buf_StripNewlines(Buffer *); + +#endif /* buf_h_a61a6812 */ |