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/* $OpenBSD: bwstring.h,v 1.2 2015/12/31 16:09:31 millert Exp $ */
/*-
* Copyright (C) 2009 Gabor Kovesdan <gabor@FreeBSD.org>
* Copyright (C) 2012 Oleg Moskalenko <mom040267@gmail.com>
* All rights reserved.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*/
#if !defined(__BWSTRING_H__)
#define __BWSTRING_H__
#include <stdbool.h>
#include <stdio.h>
#include <errno.h>
#include <wchar.h>
#include "mem.h"
extern bool byte_sort;
extern size_t sort_mb_cur_max;
/* wchar_t is of 4 bytes: */
#define SIZEOF_WCHAR_STRING(LEN) ((LEN)*sizeof(wchar_t))
/*
* Binary "wide" string
*/
struct bwstring {
size_t len;
union
{
wchar_t wstr[0];
unsigned char cstr[0];
} data;
};
struct reader_buffer {
wchar_t *fgetwln_z_buffer;
size_t fgetwln_z_buffer_size;
};
typedef void *bwstring_iterator;
#define BWSLEN(s) ((s)->len)
struct bwstring *bwsalloc(size_t sz);
size_t bwsrawlen(const struct bwstring *bws);
const void* bwsrawdata(const struct bwstring *bws);
void bws_setlen(struct bwstring *bws, size_t newlen);
size_t bws_memsize(const struct bwstring *bws);
double bwstod(struct bwstring *s0, bool *empty);
int bws_month_score(const struct bwstring *s0);
struct bwstring *ignore_leading_blanks(struct bwstring *str);
struct bwstring *ignore_nonprinting(struct bwstring *str);
struct bwstring *dictionary_order(struct bwstring *str);
struct bwstring *ignore_case(struct bwstring *str);
void bwsprintf(FILE*, struct bwstring*, const char *prefix, const char *suffix);
void bws_disorder_warnx(struct bwstring *s, const char *fn, size_t pos);
struct bwstring *bwsdup(const struct bwstring *s);
struct bwstring *bwssbdup(const wchar_t *str, size_t size);
struct bwstring *bwscsbdup(const unsigned char *str, size_t size);
void bwsfree(struct bwstring *s);
size_t bwscpy(struct bwstring *dst, const struct bwstring *src);
struct bwstring *bwsncpy(struct bwstring *dst, const struct bwstring *src, size_t size);
struct bwstring *bwsnocpy(struct bwstring *dst, const struct bwstring *src, size_t offset, size_t size);
int bwscmp(const struct bwstring *bws1, const struct bwstring *bws2, size_t offset);
int bwsncmp(const struct bwstring *bws1, const struct bwstring *bws2, size_t offset, size_t len);
int bwscoll(const struct bwstring *bws1, const struct bwstring *bws2, size_t offset);
size_t bwsfwrite(struct bwstring *bws, FILE *f, bool zero_ended);
struct bwstring *bwsfgetln(FILE *file, size_t *len, bool zero_ended, struct reader_buffer *rb);
static inline bwstring_iterator
bws_begin(struct bwstring *bws)
{
return (bwstring_iterator) (&(bws->data));
}
static inline bwstring_iterator
bws_end(struct bwstring *bws)
{
return ((sort_mb_cur_max == 1) ?
(bwstring_iterator) (bws->data.cstr + bws->len) :
(bwstring_iterator) (bws->data.wstr + bws->len));
}
static inline bwstring_iterator
bws_iterator_inc(bwstring_iterator iter, size_t pos)
{
if (sort_mb_cur_max == 1)
return ((unsigned char *) iter) + pos;
else
return ((wchar_t*) iter) + pos;
}
static inline wchar_t
bws_get_iter_value(bwstring_iterator iter)
{
if (sort_mb_cur_max == 1)
return *((unsigned char *) iter);
else
return *((wchar_t*) iter);
}
int
bws_iterator_cmp(bwstring_iterator iter1, bwstring_iterator iter2, size_t len);
#define BWS_GET(bws, pos) ((sort_mb_cur_max == 1) ? ((bws)->data.cstr[(pos)]) : (bws)->data.wstr[(pos)])
void initialise_months(void);
#endif /* __BWSTRING_H__ */
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