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 bool null_terminated;
16} String;
17
18#define new_string(null_terminated) string_with_capacity(STRING_DEFAULT_SIZE, null_terminated)
19String* string_with_capacity(size_t capacity, bool null_terminated);
20void delete_string(String* string);
21
22HEDLEY_INLINE
23static char string_at(const String* string, size_t index)
24{
25 return string->chars[index];
26}
27
28#define string_pop(string) string_pop_at(string, string->length-1)
29char string_pop_at(String* string, size_t index);
30
31bool string_insert(String* string, size_t index, char character);
32#define string_push(string, character) string_insert(string, string->length, character)
33
34HEDLEY_INLINE
35static void string_remove(String* string, size_t index)
36{
37 if(index < string->length)
38 {
39 memmove(string->chars+index, string->chars+index+1, (string->length-index-1+(string->null_terminated?1:0))*sizeof(*string->chars));
40 string->length--;
41 }
42}
43void string_remove_range(String* string, size_t index, size_t length);
44size_t string_strip(String* string, char character);
45
46bool string_grow(String* string, size_t add);
47bool string_adjust_size(String* string, size_t size);
48bool string_find_char(const String* haystack, const char needle, size_t* pos);
49HEDLEY_INLINE
50static bool string_find_str(const String* haystack, const String* needle, size_t* pos)
51{
52 return cutil_memmem(haystack->chars, haystack->length, needle->chars, needle->length, pos);
53}
54HEDLEY_INLINE
55static int string_cmp(const String* s1, const String* s2)
56{
57 return memcmp(s1->chars, s2->chars, s1->length);
58}
59
60size_t string_count(const String* string, char character);
61
62bool string_concat(String* string, const String* other);
63
64String* from_cstring(const char* cstring, bool null_terminated);
65String* from_cstring_reuse(char* cstring, size_t capacity, bool null_terminated);
66String* from_cstring_del(char* cstring, bool null_terminated);
67char* to_cstring(const String* string);
68char* to_cstring_del(String* string);
69void string_move(String* dest, String* src);
70
71#endif /* CUTILS_DYN_STRING_H */
72