Mercurial > libedl

comparison src/str.c @ 4:c2408abb258a

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
*: add dumping to string, rename EDL_file to EDL
author Paper <mrpapersonic@gmail.com>
date Mon, 25 Dec 2023 16:24:16 -0500
parents
children a6ab6d9c0dac
comparison
equal deleted inserted replaced
3:bd99b6549eb4 4:c2408abb258a
1 #include <stdlib.h>
2 #include <string.h>
3 #include "str.h"
4
5 int EDL_internal_string_init(EDL_internal_string* str) {
6 if (!str)
7 return 0;
8
9 str->size = 0;
10 str->capacity = 0;
11 str->data = NULL;
12 return 1;
13 }
14
15 int EDL_internal_string_allocate(EDL_internal_string* str, size_t new_capacity) {
16 if (new_capacity == str->capacity)
17 return 1; // nothing to do
18
19 str->data = realloc(str->data, new_capacity * sizeof(char));
20 if (!str->data)
21 return 0;
22
23 if (new_capacity > str->capacity)
24 memset(&str->data[str->capacity], 0, (new_capacity - str->capacity) * sizeof(char));
25
26 str->capacity = new_capacity;
27
28 return 1;
29 }
30
31 int EDL_internal_string_append(EDL_internal_string* str, const char* data, const size_t length) {
32 /* this sucks, but I'm too lazy to write anything smarter. */
33 {
34 size_t capacity = 1;
35 while (capacity < (str->size + length + 1))
36 capacity *= 2;
37
38 if (capacity < str->capacity || !EDL_internal_string_allocate(str, capacity))
39 return 0;
40 }
41
42 strncat(str->data, data, length);
43 str->size += length;
44
45 return 1;
46 }
47
48 void EDL_internal_string_free(EDL_internal_string* str) {
49 if (str->data)
50 free(str->data);
51 }