1 /* PSPP - computes sample statistics.
2 Copyright (C) 1997-9, 2000 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License as
6 published by the Free Software Foundation; either version 2 of the
7 License, or (at your option) any later version.
9 This program is distributed in the hope that it will be useful, but
10 WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
29 #include "memcasecmp.h"
37 #include "vsnprintf.h"
38 #include "xvasprintf.h"
42 void buf_reverse (char *, size_t);
43 char *buf_find_reverse (const char *, size_t, const char *, size_t);
44 int buf_compare_case (const char *, const char *, size_t);
45 int buf_compare_rpad (const char *, size_t, const char *, size_t);
46 void buf_copy_lpad (char *, size_t, const char *, size_t);
47 void buf_copy_rpad (char *, size_t, const char *, size_t);
48 void buf_copy_str_lpad (char *, size_t, const char *);
49 void buf_copy_str_rpad (char *, size_t, const char *);
51 int str_compare_rpad (const char *, const char *);
52 void str_copy_rpad (char *, size_t, const char *);
53 void str_copy_trunc (char *, size_t, const char *);
54 void str_copy_buf_trunc (char *, size_t, const char *, size_t);
55 void str_uppercase (char *);
56 void str_lowercase (char *);
58 char *spprintf (char *dst, const char *format, ...);
60 void *mempset (void *, int, size_t);
62 /* Common character classes for use with substring and string functions. */
64 #define CC_SPACES " \t\v\r\n"
65 #define CC_DIGITS "0123456789"
66 #define CC_XDIGITS "0123456789abcdefABCDEF"
67 #define CC_LETTERS "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
68 #define CC_ALNUM CC_LETTERS CC_DIGITS
77 #define SS_EMPTY_INITIALIZER {NULL, 0}
78 #define SS_LITERAL_INITIALIZER(LITERAL) \
79 {(char *) LITERAL, (sizeof LITERAL) - 1}
82 These functions do not allocate any memory, so the substrings
83 they create should not normally be destroyed. */
84 struct substring ss_empty (void);
85 struct substring ss_cstr (const char *);
86 struct substring ss_buffer (const char *, size_t);
87 struct substring ss_substr (struct substring, size_t start, size_t);
88 struct substring ss_head (struct substring, size_t);
89 struct substring ss_tail (struct substring, size_t);
91 /* Constructors and destructor that allocate and deallocate
94 void ss_alloc_substring (struct substring *, struct substring);
95 void ss_alloc_uninit (struct substring *, size_t);
96 void ss_alloc_substring_pool (struct substring *, struct substring,
98 void ss_alloc_uninit_pool (struct substring *, size_t, struct pool *);
99 void ss_dealloc (struct substring *);
102 Functions that advance the beginning of a string should not be
103 used if a substring is to be deallocated. */
104 void ss_truncate (struct substring *, size_t);
105 size_t ss_rtrim (struct substring *, struct substring trim_set);
106 size_t ss_ltrim (struct substring *, struct substring trim_set);
107 void ss_trim (struct substring *, struct substring trim_set);
108 bool ss_chomp (struct substring *, char);
109 bool ss_separate (struct substring src, struct substring delimiters,
110 size_t *save_idx, struct substring *token);
111 bool ss_tokenize (struct substring src, struct substring delimiters,
112 size_t *save_idx, struct substring *token);
113 void ss_advance (struct substring *, size_t);
114 bool ss_match_char (struct substring *, char);
115 bool ss_match_string (struct substring *, const struct substring);
116 int ss_get_char (struct substring *);
117 size_t ss_get_chars (struct substring *, size_t cnt, struct substring *);
118 bool ss_get_until (struct substring *, char delimiter, struct substring *);
119 size_t ss_get_long (struct substring *, long *);
122 bool ss_is_empty (struct substring);
123 size_t ss_length (struct substring);
124 char *ss_data (struct substring);
125 char *ss_end (struct substring);
126 int ss_at (struct substring, size_t idx);
127 int ss_first (struct substring);
128 int ss_last (struct substring);
129 size_t ss_span (struct substring, struct substring skip_set);
130 size_t ss_cspan (struct substring, struct substring stop_set);
131 size_t ss_find_char (struct substring, char);
132 int ss_compare (struct substring, struct substring);
133 int ss_compare_case (struct substring, struct substring);
134 int ss_equals (struct substring, struct substring);
135 int ss_equals_case (struct substring, struct substring);
136 size_t ss_pointer_to_position (struct substring, const char *);
137 char *ss_xstrdup (struct substring);
139 /* Variable length strings. */
145 size_t capacity; /* Allocated capacity, not including one
146 extra byte allocated for null terminator. */
149 #define DS_EMPTY_INITIALIZER {SS_EMPTY_INITIALIZER, 0}
151 /* Constructors, destructors. */
152 void ds_init_empty (struct string *);
153 void ds_init_string (struct string *, const struct string *);
154 void ds_init_substring (struct string *, struct substring);
155 void ds_init_cstr (struct string *, const char *);
156 void ds_destroy (struct string *);
157 void ds_swap (struct string *, struct string *);
161 void ds_register_pool (struct string *, struct pool *);
162 void ds_unregister_pool (struct string *, struct pool *);
165 void ds_assign_string (struct string *, const struct string *);
166 void ds_assign_substring (struct string *, struct substring);
167 void ds_assign_cstr (struct string *, const char *);
169 /* Shrink, extend. */
170 void ds_clear (struct string *);
171 void ds_extend (struct string *, size_t);
172 void ds_shrink (struct string *);
173 void ds_truncate (struct string *, size_t);
175 /* Padding, trimming. */
176 size_t ds_rtrim (struct string *, struct substring trim_set);
177 size_t ds_ltrim (struct string *, struct substring trim_set);
178 size_t ds_trim (struct string *, struct substring trim_set);
179 bool ds_chomp (struct string *, char);
180 bool ds_separate (const struct string *src, struct substring delimiters,
181 size_t *save_idx, struct substring *token);
182 bool ds_tokenize (const struct string *src, struct substring delimiters,
183 size_t *save_idx, struct substring *token);
184 void ds_rpad (struct string *, size_t length, char pad);
185 void ds_set_length (struct string *, size_t new_length, char pad);
187 /* Extracting substrings. */
188 struct substring ds_ss (const struct string *);
189 struct substring ds_substr (const struct string *, size_t start, size_t);
190 struct substring ds_head (const struct string *, size_t);
191 struct substring ds_tail (const struct string *, size_t);
194 bool ds_is_empty (const struct string *);
195 size_t ds_length (const struct string *);
196 char *ds_data (const struct string *);
197 char *ds_end (const struct string *);
198 int ds_at (const struct string *, size_t idx);
199 int ds_first (const struct string *);
200 int ds_last (const struct string *);
201 size_t ds_span (const struct string *, struct substring skip_set);
202 size_t ds_cspan (const struct string *, struct substring stop_set);
203 size_t ds_find_char (const struct string *, char);
204 int ds_compare (const struct string *, const struct string *);
205 size_t ds_pointer_to_position (const struct string *, const char *);
206 char *ds_xstrdup (const struct string *);
208 size_t ds_capacity (const struct string *);
209 char *ds_cstr (const struct string *);
212 bool ds_read_line (struct string *, FILE *);
213 bool ds_read_config_line (struct string *, int *line_number, FILE *);
214 size_t ds_read_stream (struct string *, size_t size, size_t cnt, FILE *stream);
217 void ds_put_char (struct string *, int ch);
218 void ds_put_char_multiple (struct string *, int ch, size_t);
219 void ds_put_cstr (struct string *, const char *);
220 void ds_put_substring (struct string *, struct substring);
221 void ds_put_vformat (struct string *st, const char *, va_list)
222 PRINTF_FORMAT (2, 0);
223 void ds_put_format (struct string *, const char *, ...)
224 PRINTF_FORMAT (2, 3);
225 char *ds_put_uninit (struct string *st, size_t incr);