1/**************************************************************************/
2/* string_builder.cpp */
3/**************************************************************************/
4/* This file is part of: */
5/* GODOT ENGINE */
6/* https://godotengine.org */
7/**************************************************************************/
8/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
9/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
10/* */
11/* Permission is hereby granted, free of charge, to any person obtaining */
12/* a copy of this software and associated documentation files (the */
13/* "Software"), to deal in the Software without restriction, including */
14/* without limitation the rights to use, copy, modify, merge, publish, */
15/* distribute, sublicense, and/or sell copies of the Software, and to */
16/* permit persons to whom the Software is furnished to do so, subject to */
17/* the following conditions: */
18/* */
19/* The above copyright notice and this permission notice shall be */
20/* included in all copies or substantial portions of the Software. */
21/* */
22/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
23/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
24/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
25/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
26/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
27/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
28/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
29/**************************************************************************/
30
31#include "string_builder.h"
32
33#include <string.h>
34
35StringBuilder &StringBuilder::append(const String &p_string) {
36 if (p_string.is_empty()) {
37 return *this;
38 }
39
40 strings.push_back(p_string);
41 appended_strings.push_back(-1);
42
43 string_length += p_string.length();
44
45 return *this;
46}
47
48StringBuilder &StringBuilder::append(const char *p_cstring) {
49 int32_t len = strlen(p_cstring);
50
51 c_strings.push_back(p_cstring);
52 appended_strings.push_back(len);
53
54 string_length += len;
55
56 return *this;
57}
58
59String StringBuilder::as_string() const {
60 if (string_length == 0) {
61 return "";
62 }
63
64 char32_t *buffer = memnew_arr(char32_t, string_length);
65
66 int current_position = 0;
67
68 int godot_string_elem = 0;
69 int c_string_elem = 0;
70
71 for (int i = 0; i < appended_strings.size(); i++) {
72 if (appended_strings[i] == -1) {
73 // Godot string
74 const String &s = strings[godot_string_elem];
75
76 memcpy(buffer + current_position, s.ptr(), s.length() * sizeof(char32_t));
77
78 current_position += s.length();
79
80 godot_string_elem++;
81 } else {
82 const char *s = c_strings[c_string_elem];
83
84 for (int32_t j = 0; j < appended_strings[i]; j++) {
85 buffer[current_position + j] = s[j];
86 }
87
88 current_position += appended_strings[i];
89
90 c_string_elem++;
91 }
92 }
93
94 String final_string = String(buffer, string_length);
95
96 memdelete_arr(buffer);
97
98 return final_string;
99}
100