569 lines
18 KiB
C++
569 lines
18 KiB
C++
/*************************************************************************/
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/* plist.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "modules/modules_enabled.gen.h" // For regex.
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#include "plist.h"
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#ifdef MODULE_REGEX_ENABLED
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Ref<PListNode> PListNode::new_array() {
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Ref<PListNode> node = memnew(PListNode());
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ERR_FAIL_COND_V(node.is_null(), Ref<PListNode>());
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node->data_type = PList::PLNodeType::PL_NODE_TYPE_ARRAY;
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return node;
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}
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Ref<PListNode> PListNode::new_dict() {
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Ref<PListNode> node = memnew(PListNode());
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ERR_FAIL_COND_V(node.is_null(), Ref<PListNode>());
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node->data_type = PList::PLNodeType::PL_NODE_TYPE_DICT;
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return node;
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}
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Ref<PListNode> PListNode::new_string(const String &p_string) {
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Ref<PListNode> node = memnew(PListNode());
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ERR_FAIL_COND_V(node.is_null(), Ref<PListNode>());
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node->data_type = PList::PLNodeType::PL_NODE_TYPE_STRING;
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node->data_string = p_string.utf8();
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return node;
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}
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Ref<PListNode> PListNode::new_data(const String &p_string) {
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Ref<PListNode> node = memnew(PListNode());
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ERR_FAIL_COND_V(node.is_null(), Ref<PListNode>());
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node->data_type = PList::PLNodeType::PL_NODE_TYPE_DATA;
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node->data_string = p_string.utf8();
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return node;
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}
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Ref<PListNode> PListNode::new_date(const String &p_string) {
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Ref<PListNode> node = memnew(PListNode());
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ERR_FAIL_COND_V(node.is_null(), Ref<PListNode>());
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node->data_type = PList::PLNodeType::PL_NODE_TYPE_DATE;
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node->data_string = p_string.utf8();
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return node;
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}
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Ref<PListNode> PListNode::new_bool(bool p_bool) {
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Ref<PListNode> node = memnew(PListNode());
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ERR_FAIL_COND_V(node.is_null(), Ref<PListNode>());
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node->data_type = PList::PLNodeType::PL_NODE_TYPE_BOOLEAN;
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node->data_bool = p_bool;
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return node;
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}
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Ref<PListNode> PListNode::new_int(int32_t p_int) {
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Ref<PListNode> node = memnew(PListNode());
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ERR_FAIL_COND_V(node.is_null(), Ref<PListNode>());
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node->data_type = PList::PLNodeType::PL_NODE_TYPE_INTEGER;
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node->data_int = p_int;
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return node;
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}
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Ref<PListNode> PListNode::new_real(float p_real) {
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Ref<PListNode> node = memnew(PListNode());
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ERR_FAIL_COND_V(node.is_null(), Ref<PListNode>());
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node->data_type = PList::PLNodeType::PL_NODE_TYPE_REAL;
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node->data_real = p_real;
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return node;
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}
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bool PListNode::push_subnode(const Ref<PListNode> &p_node, const String &p_key) {
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ERR_FAIL_COND_V(p_node.is_null(), false);
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if (data_type == PList::PLNodeType::PL_NODE_TYPE_DICT) {
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ERR_FAIL_COND_V(p_key.is_empty(), false);
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ERR_FAIL_COND_V(data_dict.has(p_key), false);
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data_dict[p_key] = p_node;
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return true;
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} else if (data_type == PList::PLNodeType::PL_NODE_TYPE_ARRAY) {
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data_array.push_back(p_node);
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return true;
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} else {
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ERR_FAIL_V_MSG(false, "PList: Invalid parent node type, should be DICT or ARRAY.");
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}
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}
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size_t PListNode::get_asn1_size(uint8_t p_len_octets) const {
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// Get size of all data, excluding type and size information.
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switch (data_type) {
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case PList::PLNodeType::PL_NODE_TYPE_NIL: {
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return 0;
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} break;
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case PList::PLNodeType::PL_NODE_TYPE_DATA:
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case PList::PLNodeType::PL_NODE_TYPE_DATE: {
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ERR_FAIL_V_MSG(0, "PList: DATE and DATA nodes are not supported by ASN.1 serialization.");
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} break;
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case PList::PLNodeType::PL_NODE_TYPE_STRING: {
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return data_string.length();
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} break;
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case PList::PLNodeType::PL_NODE_TYPE_BOOLEAN: {
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return 1;
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} break;
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case PList::PLNodeType::PL_NODE_TYPE_INTEGER:
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case PList::PLNodeType::PL_NODE_TYPE_REAL: {
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return 4;
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} break;
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case PList::PLNodeType::PL_NODE_TYPE_ARRAY: {
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size_t size = 0;
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for (int i = 0; i < data_array.size(); i++) {
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size += 1 + _asn1_size_len(p_len_octets) + data_array[i]->get_asn1_size(p_len_octets);
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}
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return size;
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} break;
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case PList::PLNodeType::PL_NODE_TYPE_DICT: {
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size_t size = 0;
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for (const Map<String, Ref<PListNode>>::Element *it = data_dict.front(); it; it = it->next()) {
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size += 1 + _asn1_size_len(p_len_octets); // Sequence.
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size += 1 + _asn1_size_len(p_len_octets) + it->key().utf8().length(); //Key.
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size += 1 + _asn1_size_len(p_len_octets) + it->value()->get_asn1_size(p_len_octets); // Value.
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}
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return size;
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} break;
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default: {
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return 0;
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} break;
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}
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}
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int PListNode::_asn1_size_len(uint8_t p_len_octets) {
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if (p_len_octets > 1) {
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return p_len_octets + 1;
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} else {
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return 1;
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}
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}
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void PListNode::store_asn1_size(PackedByteArray &p_stream, uint8_t p_len_octets) const {
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uint32_t size = get_asn1_size(p_len_octets);
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if (p_len_octets > 1) {
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p_stream.push_back(0x80 + p_len_octets);
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}
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for (int i = p_len_octets - 1; i >= 0; i--) {
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uint8_t x = (size >> i * 8) & 0xFF;
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p_stream.push_back(x);
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}
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}
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bool PListNode::store_asn1(PackedByteArray &p_stream, uint8_t p_len_octets) const {
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// Convert to binary ASN1 stream.
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bool valid = true;
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switch (data_type) {
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case PList::PLNodeType::PL_NODE_TYPE_NIL: {
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// Nothing to store.
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} break;
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case PList::PLNodeType::PL_NODE_TYPE_DATE:
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case PList::PLNodeType::PL_NODE_TYPE_DATA: {
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ERR_FAIL_V_MSG(false, "PList: DATE and DATA nodes are not supported by ASN.1 serialization.");
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} break;
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case PList::PLNodeType::PL_NODE_TYPE_STRING: {
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p_stream.push_back(0x0C);
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store_asn1_size(p_stream, p_len_octets);
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for (int i = 0; i < data_string.size(); i++) {
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p_stream.push_back(data_string[i]);
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}
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} break;
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case PList::PLNodeType::PL_NODE_TYPE_BOOLEAN: {
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p_stream.push_back(0x01);
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store_asn1_size(p_stream, p_len_octets);
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if (data_bool) {
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p_stream.push_back(0x01);
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} else {
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p_stream.push_back(0x00);
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}
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} break;
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case PList::PLNodeType::PL_NODE_TYPE_INTEGER: {
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p_stream.push_back(0x02);
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store_asn1_size(p_stream, p_len_octets);
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for (int i = 4; i >= 0; i--) {
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uint8_t x = (data_int >> i * 8) & 0xFF;
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p_stream.push_back(x);
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}
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} break;
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case PList::PLNodeType::PL_NODE_TYPE_REAL: {
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p_stream.push_back(0x03);
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store_asn1_size(p_stream, p_len_octets);
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for (int i = 4; i >= 0; i--) {
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uint8_t x = (data_int >> i * 8) & 0xFF;
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p_stream.push_back(x);
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}
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} break;
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case PList::PLNodeType::PL_NODE_TYPE_ARRAY: {
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p_stream.push_back(0x30); // Sequence.
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store_asn1_size(p_stream, p_len_octets);
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for (int i = 0; i < data_array.size(); i++) {
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valid = valid && data_array[i]->store_asn1(p_stream, p_len_octets);
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}
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} break;
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case PList::PLNodeType::PL_NODE_TYPE_DICT: {
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p_stream.push_back(0x31); // Set.
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store_asn1_size(p_stream, p_len_octets);
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for (const Map<String, Ref<PListNode>>::Element *it = data_dict.front(); it; it = it->next()) {
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CharString cs = it->key().utf8();
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uint32_t size = cs.length();
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// Sequence.
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p_stream.push_back(0x30);
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uint32_t seq_size = 2 * (1 + _asn1_size_len(p_len_octets)) + size + it->value()->get_asn1_size(p_len_octets);
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if (p_len_octets > 1) {
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p_stream.push_back(0x80 + p_len_octets);
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}
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for (int i = p_len_octets - 1; i >= 0; i--) {
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uint8_t x = (seq_size >> i * 8) & 0xFF;
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p_stream.push_back(x);
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}
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// Key.
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p_stream.push_back(0x0C);
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if (p_len_octets > 1) {
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p_stream.push_back(0x80 + p_len_octets);
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}
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for (int i = p_len_octets - 1; i >= 0; i--) {
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uint8_t x = (size >> i * 8) & 0xFF;
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p_stream.push_back(x);
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}
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for (uint32_t i = 0; i < size; i++) {
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p_stream.push_back(cs[i]);
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}
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// Value.
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valid = valid && it->value()->store_asn1(p_stream, p_len_octets);
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}
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} break;
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}
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return valid;
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}
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void PListNode::store_text(String &p_stream, uint8_t p_indent) const {
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// Convert to text XML stream.
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switch (data_type) {
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case PList::PLNodeType::PL_NODE_TYPE_NIL: {
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// Nothing to store.
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} break;
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case PList::PLNodeType::PL_NODE_TYPE_DATA: {
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p_stream += String("\t").repeat(p_indent);
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p_stream += "<data>\n";
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p_stream += String("\t").repeat(p_indent);
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p_stream += data_string + "\n";
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p_stream += String("\t").repeat(p_indent);
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p_stream += "</data>\n";
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} break;
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case PList::PLNodeType::PL_NODE_TYPE_DATE: {
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p_stream += String("\t").repeat(p_indent);
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p_stream += "<date>";
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p_stream += data_string;
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p_stream += "</date>\n";
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} break;
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case PList::PLNodeType::PL_NODE_TYPE_STRING: {
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p_stream += String("\t").repeat(p_indent);
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p_stream += "<string>";
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p_stream += String::utf8(data_string);
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p_stream += "</string>\n";
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} break;
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case PList::PLNodeType::PL_NODE_TYPE_BOOLEAN: {
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p_stream += String("\t").repeat(p_indent);
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if (data_bool) {
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p_stream += "<true/>\n";
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} else {
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p_stream += "<false/>\n";
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}
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} break;
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case PList::PLNodeType::PL_NODE_TYPE_INTEGER: {
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p_stream += String("\t").repeat(p_indent);
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p_stream += "<integer>";
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p_stream += itos(data_int);
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p_stream += "</integer>\n";
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} break;
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case PList::PLNodeType::PL_NODE_TYPE_REAL: {
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p_stream += String("\t").repeat(p_indent);
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p_stream += "<real>";
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p_stream += rtos(data_real);
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p_stream += "</real>\n";
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} break;
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case PList::PLNodeType::PL_NODE_TYPE_ARRAY: {
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p_stream += String("\t").repeat(p_indent);
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p_stream += "<array>\n";
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for (int i = 0; i < data_array.size(); i++) {
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data_array[i]->store_text(p_stream, p_indent + 1);
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}
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p_stream += String("\t").repeat(p_indent);
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p_stream += "</array>\n";
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} break;
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case PList::PLNodeType::PL_NODE_TYPE_DICT: {
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p_stream += String("\t").repeat(p_indent);
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p_stream += "<dict>\n";
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for (const Map<String, Ref<PListNode>>::Element *it = data_dict.front(); it; it = it->next()) {
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p_stream += String("\t").repeat(p_indent + 1);
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p_stream += "<key>";
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p_stream += it->key();
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p_stream += "</key>\n";
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it->value()->store_text(p_stream, p_indent + 1);
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}
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p_stream += String("\t").repeat(p_indent);
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p_stream += "</dict>\n";
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} break;
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}
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}
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/*************************************************************************/
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PList::PList() {
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root = PListNode::new_dict();
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}
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PList::PList(const String &p_string) {
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load_string(p_string);
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}
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bool PList::load_file(const String &p_filename) {
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root = Ref<PListNode>();
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Ref<FileAccess> fb = FileAccess::open(p_filename, FileAccess::READ);
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if (fb.is_null()) {
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return false;
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}
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unsigned char magic[8];
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fb->get_buffer(magic, 8);
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if (String((const char *)magic, 8) == "bplist00") {
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ERR_FAIL_V_MSG(false, "PList: Binary property lists are not supported.");
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} else {
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// Load text plist.
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Error err;
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Vector<uint8_t> array = FileAccess::get_file_as_array(p_filename, &err);
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ERR_FAIL_COND_V(err != OK, false);
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String ret;
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ret.parse_utf8((const char *)array.ptr(), array.size());
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return load_string(ret);
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}
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}
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bool PList::load_string(const String &p_string) {
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root = Ref<PListNode>();
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int pos = 0;
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bool in_plist = false;
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bool done_plist = false;
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List<Ref<PListNode>> stack;
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String key;
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while (pos >= 0) {
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int open_token_s = p_string.find("<", pos);
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if (open_token_s == -1) {
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ERR_FAIL_V_MSG(false, "PList: Unexpected end of data. No tags found.");
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}
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int open_token_e = p_string.find(">", open_token_s);
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pos = open_token_e;
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String token = p_string.substr(open_token_s + 1, open_token_e - open_token_s - 1);
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if (token.is_empty()) {
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ERR_FAIL_V_MSG(false, "PList: Invalid token name.");
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}
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String value;
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if (token[0] == '?' || token[0] == '!') { // Skip <?xml ... ?> and <!DOCTYPE ... >
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int end_token_e = p_string.find(">", open_token_s);
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pos = end_token_e;
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continue;
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}
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if (token.find("plist", 0) == 0) {
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in_plist = true;
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continue;
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}
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if (token == "/plist") {
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done_plist = true;
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break;
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}
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if (!in_plist) {
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ERR_FAIL_V_MSG(false, "PList: Node outside of <plist> tag.");
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}
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if (token == "dict") {
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if (!stack.is_empty()) {
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// Add subnode end enter it.
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Ref<PListNode> dict = PListNode::new_dict();
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dict->data_type = PList::PLNodeType::PL_NODE_TYPE_DICT;
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if (!stack.back()->get()->push_subnode(dict, key)) {
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ERR_FAIL_V_MSG(false, "PList: Can't push subnode, invalid parent type.");
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}
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stack.push_back(dict);
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} else {
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// Add root node.
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if (!root.is_null()) {
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ERR_FAIL_V_MSG(false, "PList: Root node already set.");
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}
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Ref<PListNode> dict = PListNode::new_dict();
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stack.push_back(dict);
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root = dict;
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}
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continue;
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}
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if (token == "/dict") {
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// Exit current dict.
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if (stack.is_empty() || stack.back()->get()->data_type != PList::PLNodeType::PL_NODE_TYPE_DICT) {
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ERR_FAIL_V_MSG(false, "PList: Mismatched </dict> tag.");
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}
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stack.pop_back();
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continue;
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}
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if (token == "array") {
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if (!stack.is_empty()) {
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// Add subnode end enter it.
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Ref<PListNode> arr = PListNode::new_array();
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if (!stack.back()->get()->push_subnode(arr, key)) {
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ERR_FAIL_V_MSG(false, "PList: Can't push subnode, invalid parent type.");
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|
}
|
|
stack.push_back(arr);
|
|
} else {
|
|
// Add root node.
|
|
if (!root.is_null()) {
|
|
ERR_FAIL_V_MSG(false, "PList: Root node already set.");
|
|
}
|
|
Ref<PListNode> arr = PListNode::new_array();
|
|
stack.push_back(arr);
|
|
root = arr;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (token == "/array") {
|
|
// Exit current array.
|
|
if (stack.is_empty() || stack.back()->get()->data_type != PList::PLNodeType::PL_NODE_TYPE_ARRAY) {
|
|
ERR_FAIL_V_MSG(false, "PList: Mismatched </array> tag.");
|
|
}
|
|
stack.pop_back();
|
|
continue;
|
|
}
|
|
|
|
if (token[token.length() - 1] == '/') {
|
|
token = token.substr(0, token.length() - 1);
|
|
} else {
|
|
int end_token_s = p_string.find("</", pos);
|
|
if (end_token_s == -1) {
|
|
ERR_FAIL_V_MSG(false, vformat("PList: Mismatched <%s> tag.", token));
|
|
}
|
|
int end_token_e = p_string.find(">", end_token_s);
|
|
pos = end_token_e;
|
|
String end_token = p_string.substr(end_token_s + 2, end_token_e - end_token_s - 2);
|
|
if (end_token != token) {
|
|
ERR_FAIL_V_MSG(false, vformat("PList: Mismatched <%s> and <%s> token pair.", token, end_token));
|
|
}
|
|
value = p_string.substr(open_token_e + 1, end_token_s - open_token_e - 1);
|
|
}
|
|
if (token == "key") {
|
|
key = value;
|
|
} else {
|
|
Ref<PListNode> var = nullptr;
|
|
if (token == "true") {
|
|
var = PListNode::new_bool(true);
|
|
} else if (token == "false") {
|
|
var = PListNode::new_bool(false);
|
|
} else if (token == "integer") {
|
|
var = PListNode::new_int(value.to_int());
|
|
} else if (token == "real") {
|
|
var = PListNode::new_real(value.to_float());
|
|
} else if (token == "string") {
|
|
var = PListNode::new_string(value);
|
|
} else if (token == "data") {
|
|
var = PListNode::new_data(value);
|
|
} else if (token == "date") {
|
|
var = PListNode::new_date(value);
|
|
} else {
|
|
ERR_FAIL_V_MSG(false, "PList: Invalid value type.");
|
|
}
|
|
if (stack.is_empty() || !stack.back()->get()->push_subnode(var, key)) {
|
|
ERR_FAIL_V_MSG(false, "PList: Can't push subnode, invalid parent type.");
|
|
}
|
|
}
|
|
}
|
|
if (!stack.is_empty() || !done_plist) {
|
|
ERR_FAIL_V_MSG(false, "PList: Unexpected end of data. Root node is not closed.");
|
|
}
|
|
return true;
|
|
}
|
|
|
|
PackedByteArray PList::save_asn1() const {
|
|
if (root == nullptr) {
|
|
ERR_FAIL_V_MSG(PackedByteArray(), "PList: Invalid PList, no root node.");
|
|
}
|
|
size_t size = root->get_asn1_size(1);
|
|
uint8_t len_octets = 0;
|
|
if (size < 0x80) {
|
|
len_octets = 1;
|
|
} else {
|
|
size = root->get_asn1_size(2);
|
|
if (size < 0xFFFF) {
|
|
len_octets = 2;
|
|
} else {
|
|
size = root->get_asn1_size(3);
|
|
if (size < 0xFFFFFF) {
|
|
len_octets = 3;
|
|
} else {
|
|
size = root->get_asn1_size(4);
|
|
if (size < 0xFFFFFFFF) {
|
|
len_octets = 4;
|
|
} else {
|
|
ERR_FAIL_V_MSG(PackedByteArray(), "PList: Data is too big for ASN.1 serializer, should be < 4 GiB.");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
PackedByteArray ret;
|
|
if (!root->store_asn1(ret, len_octets)) {
|
|
ERR_FAIL_V_MSG(PackedByteArray(), "PList: ASN.1 serializer error.");
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
String PList::save_text() const {
|
|
if (root == nullptr) {
|
|
ERR_FAIL_V_MSG(String(), "PList: Invalid PList, no root node.");
|
|
}
|
|
|
|
String ret;
|
|
ret += "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
|
|
ret += "<!DOCTYPE plist PUBLIC \"-//Apple//DTD PLIST 1.0//EN\" \"http://www.apple.com/DTDs/PropertyList-1.0.dtd\">\n";
|
|
ret += "<plist version=\"1.0\">\n";
|
|
|
|
root->store_text(ret, 0);
|
|
|
|
ret += "</plist>\n\n";
|
|
return ret;
|
|
}
|
|
|
|
Ref<PListNode> PList::get_root() {
|
|
return root;
|
|
}
|
|
|
|
#endif // MODULE_REGEX_ENABLED
|