mirror of
https://github.com/RGBCube/serenity
synced 2025-05-14 10:54:57 +00:00
e8e728454c
- Parsing invalid JSON no longer asserts
Instead of asserting when coming across malformed JSON,
JsonParser::parse now returns an Optional<JsonValue>.
- Disallow trailing commas in JSON objects and arrays
- No longer parse 'undefined', as that is a purely JS thing
- No longer allow non-whitespace after anything consumed by the initial
parse() call. Examples of things that were valid and no longer are:
- undefineddfz
- {"foo": 1}abcd
- [1,2,3]4
- JsonObject.for_each_member now iterates in original insertion order
100 lines
3.6 KiB
C++
100 lines
3.6 KiB
C++
/*
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* Copyright (c) 2020, Hüseyin Aslıtürk <asliturk@hotmail.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "CharacterMapFile.h"
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#include <LibCore/File.h>
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namespace Keyboard {
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Optional<CharacterMapData> CharacterMapFile::load_from_file(const String& file_name)
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{
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auto path = file_name;
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if (!path.ends_with(".json")) {
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StringBuilder full_path;
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full_path.append("/res/keymaps/");
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full_path.append(file_name);
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full_path.append(".json");
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path = full_path.to_string();
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}
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auto file = Core::File::construct(path);
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file->open(Core::IODevice::ReadOnly);
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if (!file->is_open()) {
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dbg() << "Failed to open " << file_name << ":" << file->error_string();
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return {};
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}
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auto file_contents = file->read_all();
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auto json_result = JsonValue::from_string(file_contents);
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ASSERT(json_result.has_value());
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auto json = json_result.value().as_object();
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ByteBuffer map = read_map(json, "map");
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ByteBuffer shift_map = read_map(json, "shift_map");
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ByteBuffer alt_map = read_map(json, "alt_map");
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ByteBuffer altgr_map = read_map(json, "altgr_map");
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CharacterMapData character_map;
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for (int i = 0; i < CHAR_MAP_SIZE; i++) {
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character_map.map[i] = map[i];
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character_map.shift_map[i] = shift_map[i];
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character_map.alt_map[i] = alt_map[i];
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if (altgr_map) {
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character_map.altgr_map[i] = altgr_map[i];
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} else {
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// AltGr map was not found, using Alt map as fallback.
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character_map.altgr_map[i] = alt_map[i];
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}
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}
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return character_map;
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}
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ByteBuffer CharacterMapFile::read_map(const JsonObject& json, const String& name)
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{
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if (!json.has(name))
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return nullptr;
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ByteBuffer buffer;
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buffer.grow(CHAR_MAP_SIZE);
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auto map_arr = json.get(name).as_array();
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for (int i = 0; i < map_arr.size(); i++) {
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auto key_value = map_arr.at(i).as_string();
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if (key_value.length() == 0) {
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buffer[i] = 0;
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} else if (key_value.length() == 1) {
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buffer[i] = key_value.characters()[0];
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} else {
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dbg() << "Unknown character in " << name.characters() << "[" << i << "] = " << key_value.characters() << ".";
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ASSERT_NOT_REACHED();
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}
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}
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return buffer;
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}
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}
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