150 lines
4.5 KiB
C++
150 lines
4.5 KiB
C++
#include <hex/helpers/encoding_file.hpp>
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#include <hex/helpers/utils.hpp>
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#include <wolv/io/file.hpp>
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#include <wolv/utils/string.hpp>
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namespace hex {
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EncodingFile::EncodingFile() : m_mapping(std::make_unique<std::map<size_t, std::map<std::vector<u8>, std::string>>>()) {
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}
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EncodingFile::EncodingFile(const hex::EncodingFile &other) {
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m_mapping = std::make_unique<std::map<size_t, std::map<std::vector<u8>, std::string>>>(*other.m_mapping);
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m_tableContent = other.m_tableContent;
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m_longestSequence = other.m_longestSequence;
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m_valid = other.m_valid;
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m_name = other.m_name;
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}
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EncodingFile::EncodingFile(EncodingFile &&other) noexcept {
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m_mapping = std::move(other.m_mapping);
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m_tableContent = std::move(other.m_tableContent);
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m_longestSequence = other.m_longestSequence;
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m_valid = other.m_valid;
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m_name = std::move(other.m_name);
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}
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EncodingFile::EncodingFile(Type type, const std::fs::path &path) : EncodingFile() {
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auto file = wolv::io::File(path, wolv::io::File::Mode::Read);
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switch (type) {
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case Type::Thingy:
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parse(file.readString());
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break;
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default:
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return;
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}
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{
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m_name = path.stem().string();
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m_name = wolv::util::replaceStrings(m_name, "_", " ");
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if (!m_name.empty())
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m_name[0] = std::toupper(m_name[0]);
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}
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m_valid = true;
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}
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EncodingFile::EncodingFile(Type type, const std::string &content) : EncodingFile() {
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switch (type) {
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case Type::Thingy:
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parse(content);
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break;
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default:
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return;
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}
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m_name = "Unknown";
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m_valid = true;
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}
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EncodingFile &EncodingFile::operator=(const hex::EncodingFile &other) {
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m_mapping = std::make_unique<std::map<size_t, std::map<std::vector<u8>, std::string>>>(*other.m_mapping);
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m_tableContent = other.m_tableContent;
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m_longestSequence = other.m_longestSequence;
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m_valid = other.m_valid;
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m_name = other.m_name;
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return *this;
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}
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EncodingFile &EncodingFile::operator=(EncodingFile &&other) noexcept {
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m_mapping = std::move(other.m_mapping);
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m_tableContent = std::move(other.m_tableContent);
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m_longestSequence = other.m_longestSequence;
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m_valid = other.m_valid;
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m_name = std::move(other.m_name);
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return *this;
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}
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std::pair<std::string_view, size_t> EncodingFile::getEncodingFor(std::span<u8> buffer) const {
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for (auto riter = m_mapping->crbegin(); riter != m_mapping->crend(); ++riter) {
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const auto &[size, mapping] = *riter;
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if (size > buffer.size()) continue;
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std::vector key(buffer.begin(), buffer.begin() + size);
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if (mapping.contains(key))
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return { mapping.at(key), size };
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}
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return { ".", 1 };
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}
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size_t EncodingFile::getEncodingLengthFor(std::span<u8> buffer) const {
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for (auto riter = m_mapping->crbegin(); riter != m_mapping->crend(); ++riter) {
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const auto &[size, mapping] = *riter;
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if (size > buffer.size()) continue;
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std::vector key(buffer.begin(), buffer.begin() + size);
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if (mapping.contains(key))
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return size;
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}
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return 1;
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}
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void EncodingFile::parse(const std::string &content) {
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m_tableContent = content;
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for (const auto &line : splitString(m_tableContent, "\n")) {
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std::string from, to;
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{
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auto delimiterPos = line.find('=');
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if (delimiterPos >= line.length())
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continue;
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from = line.substr(0, delimiterPos);
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to = line.substr(delimiterPos + 1);
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if (from.empty()) continue;
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}
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auto fromBytes = hex::parseByteString(from);
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if (fromBytes.empty()) continue;
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if (to.length() > 1)
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to = wolv::util::trim(to);
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if (to.empty())
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to = " ";
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if (!m_mapping->contains(fromBytes.size()))
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m_mapping->insert({ fromBytes.size(), {} });
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auto keySize = fromBytes.size();
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(*m_mapping)[keySize].insert({ std::move(fromBytes), to });
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m_longestSequence = std::max(m_longestSequence, keySize);
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}
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}
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} |