1 /* $FreeBSD$ */ 2 3 /*- 4 * Copyright (C) 2009 Gabor Kovesdan <gabor@FreeBSD.org> 5 * Copyright (C) 2012 Oleg Moskalenko <mom040267@gmail.com> 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #if !defined(__BWSTRING_H__) 31 #define __BWSTRING_H__ 32 33 #include <stdbool.h> 34 #include <stdio.h> 35 #include <errno.h> 36 #include <sysexits.h> 37 #include <wchar.h> 38 39 #include "mem.h" 40 41 extern bool byte_sort; 42 43 /* wchar_t is of 4 bytes: */ 44 #define SIZEOF_WCHAR_STRING(LEN) ((LEN)*sizeof(wchar_t)) 45 46 /* 47 * Binary "wide" string 48 */ 49 struct bwstring 50 { 51 size_t len; 52 union 53 { 54 wchar_t wstr[0]; 55 unsigned char cstr[0]; 56 } data; 57 }; 58 59 struct reader_buffer 60 { 61 wchar_t *fgetwln_z_buffer; 62 size_t fgetwln_z_buffer_size; 63 }; 64 65 typedef void *bwstring_iterator; 66 67 #define BWSLEN(s) ((s)->len) 68 69 struct bwstring *bwsalloc(size_t sz); 70 71 size_t bwsrawlen(const struct bwstring *bws); 72 const void* bwsrawdata(const struct bwstring *bws); 73 void bws_setlen(struct bwstring *bws, size_t newlen); 74 size_t bws_memsize(const struct bwstring *bws); 75 double bwstod(struct bwstring *s0, bool *empty); 76 int bws_month_score(const struct bwstring *s0); 77 78 struct bwstring *ignore_leading_blanks(struct bwstring *str); 79 struct bwstring *ignore_nonprinting(struct bwstring *str); 80 struct bwstring *dictionary_order(struct bwstring *str); 81 struct bwstring *ignore_case(struct bwstring *str); 82 83 void bwsprintf(FILE*, struct bwstring*, const char *prefix, const char *suffix); 84 void bws_disorder_warnx(struct bwstring *s, const char *fn, size_t pos); 85 86 struct bwstring *bwsdup(const struct bwstring *s); 87 struct bwstring *bwssbdup(const wchar_t *str, size_t size); 88 struct bwstring *bwscsbdup(const unsigned char *str, size_t size); 89 void bwsfree(const struct bwstring *s); 90 size_t bwscpy(struct bwstring *dst, const struct bwstring *src); 91 struct bwstring *bwsncpy(struct bwstring *dst, const struct bwstring *src, size_t size); 92 struct bwstring *bwsnocpy(struct bwstring *dst, const struct bwstring *src, size_t offset, size_t size); 93 int bwscmp(const struct bwstring *bws1, const struct bwstring *bws2, size_t offset); 94 int bwsncmp(const struct bwstring *bws1, const struct bwstring *bws2, size_t offset, size_t len); 95 int bwscoll(const struct bwstring *bws1, const struct bwstring *bws2, size_t offset); 96 size_t bwsfwrite(struct bwstring *bws, FILE *f, bool zero_ended); 97 struct bwstring *bwsfgetln(FILE *file, size_t *len, bool zero_ended, struct reader_buffer *rb); 98 99 static inline bwstring_iterator 100 bws_begin(struct bwstring *bws) 101 { 102 103 return (bwstring_iterator) (&(bws->data)); 104 } 105 106 static inline bwstring_iterator 107 bws_end(struct bwstring *bws) 108 { 109 110 return ((MB_CUR_MAX == 1) ? 111 (bwstring_iterator) (bws->data.cstr + bws->len) : 112 (bwstring_iterator) (bws->data.wstr + bws->len)); 113 } 114 115 static inline bwstring_iterator 116 bws_iterator_inc(bwstring_iterator iter, size_t pos) 117 { 118 119 if (MB_CUR_MAX == 1) 120 return ((unsigned char *) iter) + pos; 121 else 122 return ((wchar_t*) iter) + pos; 123 } 124 125 static inline wchar_t 126 bws_get_iter_value(bwstring_iterator iter) 127 { 128 129 if (MB_CUR_MAX == 1) 130 return *((unsigned char *) iter); 131 else 132 return *((wchar_t*) iter); 133 } 134 135 int 136 bws_iterator_cmp(bwstring_iterator iter1, bwstring_iterator iter2, size_t len); 137 138 #define BWS_GET(bws, pos) ((MB_CUR_MAX == 1) ? ((bws)->data.cstr[(pos)]) : (bws)->data.wstr[(pos)]) 139 140 void initialise_months(void); 141 142 #endif /* __BWSTRING_H__ */ 143