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/* $OpenBSD: sort.h,v 1.4 1999/05/24 17:57:19 millert Exp $ */
/*-
* Copyright (c) 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Peter McIlroy.
*
* 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.
*
* @(#)sort.h 8.1 (Berkeley) 6/6/93
*/
#include <sys/param.h>
#include <db.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define NBINS 256
#define MAXMERGE 16
/* values for masks, weights, and other flags. */
#define I 1 /* mask out non-printable characters */
#define D 2 /* sort alphanumeric characters only */
#define N 4 /* Field is a number */
#define F 8 /* weight lower and upper case the same */
#define R 16 /* Field is reversed with respect to the global weight */
#define BI 32 /* ignore blanks in icol */
#define BT 64 /* ignore blanks in tcol */
/* masks for delimiters: blanks, fields, and termination. */
#define BLANK 1 /* ' ', '\t'; '\n' if -T is invoked */
#define FLD_D 2 /* ' ', '\t' default; from -t otherwise */
#define REC_D_F 4 /* '\n' default; from -T otherwise */
#define min(a, b) ((a) < (b) ? (a) : (b))
#define max(a, b) ((a) > (b) ? (a) : (b))
#define FCLOSE(file) { \
if (EOF == fclose(file)) \
err(2, "fclose"); \
}
#define EWRITE(ptr, size, n, f) { \
if (!fwrite(ptr, size, n, f)) \
err(2, "fwrite"); \
}
/* length of record is currently limited to 2^16 - 1 */
typedef u_short length_t;
#define SALIGN(n) ((n+(sizeof(length_t)-1)) & ~(sizeof(length_t)-1))
/* a record is a key/line pair starting at rec.data. It has a total length
* and an offset to the start of the line half of the pair.
*/
typedef struct recheader {
length_t length;
length_t offset;
u_char data[1];
} RECHEADER;
typedef struct trecheader {
length_t length;
length_t offset;
} TRECHEADER;
/* This is the column as seen by struct field. It is used by enterfield.
* They are matched with corresponding coldescs during initialization.
*/
struct column {
struct coldesc *p;
int num;
int indent;
};
/* a coldesc has a number and pointers to the beginning and end of the
* corresponding column in the current line. This is determined in enterkey.
*/
typedef struct coldesc {
u_char *start;
u_char *end;
int num;
} COLDESC;
/* A field has an initial and final column; an omitted final column
* implies the end of the line. Flags regulate omission of blanks and
* numerical sorts; mask determines which characters are ignored (from -i, -d);
* weights determines the sort weights of a character (from -f, -r).
*/
struct field {
struct column icol;
struct column tcol;
u_int flags;
u_char *mask;
u_char *weights;
};
union f_handle {
int top;
char **names;
};
extern int PANIC; /* maximum depth of fsort before fmerge is called */
extern u_char ascii[NBINS], Rascii[NBINS], Ftable[NBINS], RFtable[NBINS];
extern u_char alltable[NBINS], dtable[NBINS], itable[NBINS];
extern u_char d_mask[NBINS];
extern int SINGL_FLD, SEP_FLAG, UNIQUE;
extern int REC_D;
extern char *tmpdir;
extern int ND; /* limit on number of -k options. */
#include "extern.h"
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