xref: /PHP-8.0/ext/intl/grapheme/grapheme_util.h (revision 1312c417)
1 /*
2    +----------------------------------------------------------------------+
3    | This source file is subject to version 3.01 of the PHP license,      |
4    | that is bundled with this package in the file LICENSE, and is        |
5    | available through the world-wide-web at the following url:           |
6    | http://www.php.net/license/3_01.txt                                  |
7    | If you did not receive a copy of the PHP license and are unable to   |
8    | obtain it through the world-wide-web, please send a note to          |
9    | license@php.net so we can mail you a copy immediately.               |
10    +----------------------------------------------------------------------+
11    | Authors: Ed Batutis <ed@batutis.com>                                 |
12    +----------------------------------------------------------------------+
13  */
14 
15 #ifndef GRAPHEME_GRAPHEME_UTIL_H
16 #define GRAPHEME_GRAPHEME_UTIL_H
17 
18 #include "php_intl.h"
19 #include "intl_convert.h"
20 
21 /* get_break_interator: get a break iterator from the global structure */
22 UBreakIterator* grapheme_get_break_iterator(void *stack_buffer, UErrorCode *status );
23 
24 zend_long grapheme_ascii_check(const unsigned char *day, size_t len);
25 void grapheme_substr_ascii(char *str, size_t str_len, int32_t f, int32_t l, char **sub_str, int32_t *sub_str_len);
26 zend_long grapheme_strrpos_ascii(char *haystack, size_t haystack_len, char *needle, size_t needle_len, int32_t offset);
27 
28 int32_t grapheme_strrpos_utf16(char *haystack, size_t haystack_len, char *needle, size_t needle_len, int32_t offset, int f_ignore_case);
29 int32_t grapheme_strpos_utf16(char *haystack, size_t haystack_len, char *needle, size_t needle_len, int32_t offset, int *puchar_pos, int f_ignore_case, int last);
30 
31 int32_t grapheme_split_string(const UChar *text, int32_t text_length, int boundary_array[], int boundary_array_len );
32 
33 int32_t grapheme_count_graphemes(UBreakIterator *bi, UChar *string, int32_t string_len);
34 
35 int32_t grapheme_get_haystack_offset(UBreakIterator* bi, int32_t offset);
36 
37 UBreakIterator* grapheme_get_break_iterator(void *stack_buffer, UErrorCode *status );
38 
39 /* OUTSIDE_STRING: check if (possibly negative) long offset is outside the string with int32_t length */
40 #define OUTSIDE_STRING(offset, max_len) ( offset <= INT32_MIN || offset > INT32_MAX || (offset < 0 ? -offset > (zend_long) max_len : offset > (zend_long) max_len) )
41 
42 #endif // GRAPHEME_GRAPHEME_UTIL_H
43