1 /*
2 * Copyright (C) 2020 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "ExpandableString.h"
18
19 #include <stdio.h>
20 #include <stdlib.h>
21 #include <string.h>
22
ExpandableStringInitialize(struct ExpandableString * s)23 void ExpandableStringInitialize(struct ExpandableString *s) {
24 memset(s, 0, sizeof(*s));
25 }
26
ExpandableStringRelease(struct ExpandableString * s)27 void ExpandableStringRelease(struct ExpandableString* s) {
28 free(s->data);
29 memset(s, 0, sizeof(*s));
30 }
31
ExpandableStringAppend(struct ExpandableString * s,const char * text)32 bool ExpandableStringAppend(struct ExpandableString* s, const char* text) {
33 size_t textSize = strlen(text);
34 size_t requiredSize = s->dataSize + textSize + 1;
35 char* data = (char*) realloc(s->data, requiredSize);
36 if (data == NULL) {
37 return false;
38 }
39 s->data = data;
40 memcpy(s->data + s->dataSize, text, textSize + 1);
41 s->dataSize += textSize;
42 return true;
43 }
44
ExpandableStringAssign(struct ExpandableString * s,const char * text)45 bool ExpandableStringAssign(struct ExpandableString* s, const char* text) {
46 ExpandableStringRelease(s);
47 return ExpandableStringAppend(s, text);
48 }