libcutils

libcutils/include/cutils/dyn_string.h
dyn_string.h
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1#ifndef CUTILS_DYN_STRING_H
2#define CUTILS_DYN_STRING_H
3
4#define STRING_DEFAULT_SIZE 8
5
6#include <stdlib.h>
7#include <string.h>
8#include <cutils/common.h>
9
10typedef struct String
11{
12 char* chars;
13 size_t capacity;
14 size_t length;
15} String;
16
17#define new_string() string_with_capacity(STRING_DEFAULT_SIZE)
18String* string_with_capacity(size_t capacity);
19void delete_string(String* string);
20
21HEDLEY_INLINE
22static char string_at(const String* string, size_t index)
23{
24 return string->chars[index];
25}
26
27#define string_pop(string) string_pop_at(string, string->length-1)
28char string_pop_at(String* string, size_t index);
29
30bool string_insert(String* string, size_t index, char character);
31#define string_push(string, character) string_insert(string, string->length, character)
32
33HEDLEY_INLINE
34static void string_remove(String* string, size_t index)
35{
36 if(index < string->length)
37 {
38 memmove(string->chars+index, string->chars+index+1, (string->length-index-1)*sizeof(*string->chars));
39 string->length--;
40 }
41}
42void string_remove_range(String* string, size_t index, size_t length);
43size_t string_strip(String* string, char character);
44
45bool string_adjust_size(String* string, size_t size);
46bool string_find_char(const String* haystack, const char needle, size_t* pos);
47HEDLEY_INLINE
48static bool string_find_str(const String* haystack, const String* needle, size_t* pos)
49{
50 return cutil_memmem(haystack->chars, haystack->length, needle->chars, needle->length, pos);
51}
52HEDLEY_INLINE
53static int string_cmp(const String* s1, const String* s2)
54{
55 return memcmp(s1->chars, s2->chars, s1->length);
56}
57
58size_t string_count(const String* string, char character);
59
60bool string_concat(String* string, const String* other);
61
62String* from_cstring(const char* cstring);
63String* from_cstring_reuse(char* cstring, size_t capacity);
64String* from_cstring_del(char* cstring);
65char* to_cstring(const String* string);
66char* to_cstring_del(String* string);
67void string_move(String* dest, String* src);
68
69#endif /* CUTILS_DYN_STRING_H */
70