393 lines
16 KiB
C++
393 lines
16 KiB
C++
#include "views/view_pattern.hpp"
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#include "helpers/project_file_handler.hpp"
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#include <hex/helpers/utils.hpp>
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#include <hex/lang/preprocessor.hpp>
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#include <magic.h>
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#include <imgui_imhex_extensions.h>
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namespace hex {
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static const TextEditor::LanguageDefinition& PatternLanguage() {
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static bool initialized = false;
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static TextEditor::LanguageDefinition langDef;
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if (!initialized) {
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static const char* const keywords[] = {
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"using", "struct", "union", "enum", "bitfield", "be", "le", "if", "else", "false", "true", "parent", "addressof", "sizeof", "$"
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};
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for (auto& k : keywords)
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langDef.mKeywords.insert(k);
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static std::pair<const char* const, size_t> builtInTypes[] = {
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{ "u8", 1 }, { "u16", 2 }, { "u32", 4 }, { "u64", 8 }, { "u128", 16 },
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{ "s8", 1 }, { "s16", 2 }, { "s32", 4 }, { "s64", 8 }, { "s128", 16 },
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{ "float", 4 }, { "double", 8 }, { "char", 1 }, { "char16", 2 }, { "bool", 1 }, { "padding", 1 }
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};
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for (const auto &[name, size] : builtInTypes) {
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TextEditor::Identifier id;
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id.mDeclaration = std::to_string(size);
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id.mDeclaration += size == 1 ? " byte" : " bytes";
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langDef.mIdentifiers.insert(std::make_pair(std::string(name), id));
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}
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langDef.mTokenize = [](const char * inBegin, const char * inEnd, const char *& outBegin, const char *& outEnd, TextEditor::PaletteIndex & paletteIndex) -> bool {
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paletteIndex = TextEditor::PaletteIndex::Max;
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while (inBegin < inEnd && isascii(*inBegin) && isblank(*inBegin))
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inBegin++;
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if (inBegin == inEnd) {
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outBegin = inEnd;
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outEnd = inEnd;
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paletteIndex = TextEditor::PaletteIndex::Default;
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}
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else if (TokenizeCStyleIdentifier(inBegin, inEnd, outBegin, outEnd)) {
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if (SharedData::patternLanguageFunctions.contains(std::string(outBegin, outEnd - outBegin)))
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paletteIndex = TextEditor::PaletteIndex::LineNumber;
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else
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paletteIndex = TextEditor::PaletteIndex::Identifier;
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}
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else if (TokenizeCStyleNumber(inBegin, inEnd, outBegin, outEnd))
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paletteIndex = TextEditor::PaletteIndex::Number;
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else if (TokenizeCStyleCharacterLiteral(inBegin, inEnd, outBegin, outEnd))
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paletteIndex = TextEditor::PaletteIndex::CharLiteral;
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else if (TokenizeCStyleString(inBegin, inEnd, outBegin, outEnd))
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paletteIndex = TextEditor::PaletteIndex::String;
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return paletteIndex != TextEditor::PaletteIndex::Max;
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};
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langDef.mCommentStart = "/*";
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langDef.mCommentEnd = "*/";
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langDef.mSingleLineComment = "//";
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langDef.mCaseSensitive = true;
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langDef.mAutoIndentation = true;
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langDef.mPreprocChar = '#';
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langDef.mName = "Pattern Language";
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initialized = true;
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}
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return langDef;
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}
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ViewPattern::ViewPattern() : View("hex.view.pattern.name") {
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this->m_patternLanguageRuntime = new lang::PatternLanguage();
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this->m_textEditor.SetLanguageDefinition(PatternLanguage());
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this->m_textEditor.SetShowWhitespaces(false);
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EventManager::subscribe<EventProjectFileStore>(this, [this]() {
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ProjectFile::setPattern(this->m_textEditor.GetText());
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});
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EventManager::subscribe<EventProjectFileLoad>(this, [this]() {
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this->m_textEditor.SetText(ProjectFile::getPattern());
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this->parsePattern(this->m_textEditor.GetText().data());
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});
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EventManager::subscribe<RequestAppendPatternLanguageCode>(this, [this](std::string code) {
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this->m_textEditor.InsertText("\n");
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this->m_textEditor.InsertText(code);
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});
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EventManager::subscribe<EventFileLoaded>(this, [this](const std::string &path) {
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if (this->m_textEditor.GetText().find_first_not_of(" \f\n\r\t\v") != std::string::npos)
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return;
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lang::Preprocessor preprocessor;
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std::string magicFiles;
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std::error_code error;
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for (const auto &dir : hex::getPath(ImHexPath::Magic)) {
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if (!std::filesystem::is_directory(dir))
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continue;
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for (const auto &entry : std::filesystem::directory_iterator(dir, error)) {
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if (entry.is_regular_file() && entry.path().extension() == ".mgc")
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magicFiles += entry.path().string() + MAGIC_PATH_SEPARATOR;
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}
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}
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if (error)
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return;
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auto provider = SharedData::currentProvider;
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if (provider == nullptr)
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return;
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std::vector<u8> buffer(std::min(provider->getSize(), size_t(0xFFFF)), 0x00);
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provider->readRelative(0, buffer.data(), buffer.size());
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std::string mimeType;
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magic_t cookie = magic_open(MAGIC_MIME_TYPE);
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if (magic_load(cookie, magicFiles.c_str()) != -1)
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mimeType = magic_buffer(cookie, buffer.data(), buffer.size());
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magic_close(cookie);
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bool foundCorrectType = false;
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preprocessor.addPragmaHandler("MIME", [&mimeType, &foundCorrectType](std::string value) {
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if (value == mimeType) {
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foundCorrectType = true;
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return true;
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}
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return !std::all_of(value.begin(), value.end(), isspace) && !value.ends_with('\n') && !value.ends_with('\r');
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});
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preprocessor.addDefaultPragmaHandlers();
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this->m_possiblePatternFiles.clear();
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std::error_code errorCode;
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for (const auto &dir : hex::getPath(ImHexPath::Patterns)) {
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for (auto &entry : std::filesystem::directory_iterator(dir, errorCode)) {
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if (!entry.is_regular_file())
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continue;
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FILE *file = fopen(entry.path().string().c_str(), "r");
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if (file == nullptr)
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continue;
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fseek(file, 0, SEEK_END);
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size_t size = ftell(file);
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rewind(file);
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std::vector<char> patternBuffer( size + 1, 0x00);
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fread(patternBuffer.data(), 1, size, file);
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fclose(file);
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preprocessor.preprocess(patternBuffer.data());
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if (foundCorrectType)
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this->m_possiblePatternFiles.push_back(entry.path().string());
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}
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}
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if (!this->m_possiblePatternFiles.empty()) {
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this->m_selectedPatternFile = 0;
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View::doLater([] { ImGui::OpenPopup("hex.view.pattern.accept_pattern"_lang); });
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}
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});
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/* Settings */
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{
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EventManager::subscribe<EventSettingsChanged>(this, [this]() {
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auto theme = ContentRegistry::Settings::getSetting("hex.builtin.setting.interface", "hex.builtin.setting.interface.color");
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if (theme.is_number()) {
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switch (static_cast<int>(theme)) {
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default:
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case 0: /* Dark theme */
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this->m_textEditor.SetPalette(TextEditor::GetDarkPalette());
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break;
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case 1: /* Light theme */
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this->m_textEditor.SetPalette(TextEditor::GetLightPalette());
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break;
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case 2: /* Classic theme */
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this->m_textEditor.SetPalette(TextEditor::GetRetroBluePalette());
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break;
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}
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}
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});
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}
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}
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ViewPattern::~ViewPattern() {
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delete this->m_patternLanguageRuntime;
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EventManager::unsubscribe<EventProjectFileStore>(this);
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EventManager::unsubscribe<EventProjectFileLoad>(this);
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EventManager::unsubscribe<RequestAppendPatternLanguageCode>(this);
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EventManager::unsubscribe<EventFileLoaded>(this);
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EventManager::unsubscribe<EventSettingsChanged>(this);
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}
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void ViewPattern::drawMenu() {
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if (ImGui::BeginMenu("hex.menu.file"_lang)) {
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if (ImGui::MenuItem("hex.view.pattern.menu.file.load_pattern"_lang)) {
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View::openFileBrowser("hex.view.pattern.open_pattern"_lang, DialogMode::Open, { { "Pattern File", "hexpat" } }, [this](auto path) {
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this->loadPatternFile(path);
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});
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}
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ImGui::EndMenu();
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}
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}
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void ViewPattern::drawContent() {
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if (ImGui::Begin(View::toWindowName("hex.view.pattern.name").c_str(), &this->getWindowOpenState(), ImGuiWindowFlags_None | ImGuiWindowFlags_NoCollapse | ImGuiWindowFlags_NoScrollbar | ImGuiWindowFlags_NoScrollWithMouse)) {
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auto provider = SharedData::currentProvider;
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if (provider != nullptr && provider->isAvailable()) {
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auto textEditorSize = ImGui::GetContentRegionAvail();
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textEditorSize.y *= 4.0/5.0;
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textEditorSize.y -= ImGui::GetTextLineHeightWithSpacing();
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this->m_textEditor.Render("hex.view.pattern.name"_lang, textEditorSize, true);
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auto consoleSize = ImGui::GetContentRegionAvail();
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consoleSize.y -= ImGui::GetTextLineHeightWithSpacing();
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ImGui::PushStyleColor(ImGuiCol_ChildBg, this->m_textEditor.GetPalette()[u32(TextEditor::PaletteIndex::Background)]);
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if (ImGui::BeginChild("##console", consoleSize, true, ImGuiWindowFlags_AlwaysVerticalScrollbar)) {
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for (auto &[level, message] : this->m_console) {
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switch (level) {
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case lang::LogConsole::Level::Debug:
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ImGui::PushStyleColor(ImGuiCol_Text, this->m_textEditor.GetPalette()[u32(TextEditor::PaletteIndex::Comment)]);
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break;
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case lang::LogConsole::Level::Info:
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ImGui::PushStyleColor(ImGuiCol_Text, this->m_textEditor.GetPalette()[u32(TextEditor::PaletteIndex::Default)]);
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break;
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case lang::LogConsole::Level::Warning:
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ImGui::PushStyleColor(ImGuiCol_Text, this->m_textEditor.GetPalette()[u32(TextEditor::PaletteIndex::Preprocessor)]);
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break;
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case lang::LogConsole::Level::Error:
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ImGui::PushStyleColor(ImGuiCol_Text, this->m_textEditor.GetPalette()[u32(TextEditor::PaletteIndex::ErrorMarker)]);
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break;
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default: continue;
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}
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ImGui::TextUnformatted(message.c_str());
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ImGui::PopStyleColor();
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}
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}
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ImGui::EndChild();
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ImGui::PopStyleColor(1);
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ImGui::Disabled([this]{
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ImGui::PushStyleColor(ImGuiCol_Text, ImVec4(ImColor(0x20, 0x85, 0x20)));
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ImGui::PushStyleVar(ImGuiStyleVar_FrameBorderSize, 1);
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if (ImGui::ArrowButton("evaluate", ImGuiDir_Right))
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this->parsePattern(this->m_textEditor.GetText().data());
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ImGui::PopStyleVar();
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ImGui::PopStyleColor();
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}, this->m_evaluatorRunning);
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ImGui::SameLine();
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if (this->m_evaluatorRunning)
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ImGui::TextSpinner("hex.view.pattern.evaluating"_lang);
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else
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ImGui::Checkbox("hex.view.pattern.auto"_lang, &this->m_runAutomatically);
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if (this->m_textEditor.IsTextChanged() && this->m_runAutomatically) {
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this->parsePattern(this->m_textEditor.GetText().data());
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}
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}
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View::discardNavigationRequests();
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}
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ImGui::End();
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}
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void ViewPattern::drawAlwaysVisible() {
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if (ImGui::BeginPopupModal("hex.view.pattern.accept_pattern"_lang, nullptr, ImGuiWindowFlags_AlwaysAutoResize)) {
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ImGui::TextWrapped("hex.view.pattern.accept_pattern.desc"_lang);
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std::vector<std::string> entries;
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entries.resize(this->m_possiblePatternFiles.size());
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for (u32 i = 0; i < entries.size(); i++) {
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entries[i] = std::filesystem::path(this->m_possiblePatternFiles[i]).filename().string();
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}
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ImGui::ListBox("hex.view.pattern.accept_pattern.patterns"_lang, &this->m_selectedPatternFile, [](void *data, int id, const char** outText) -> bool {
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auto &entries = *static_cast<std::vector<std::string>*>(data);
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*outText = entries[id].c_str();
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return true;
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}, &entries, entries.size(), 4);
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ImGui::NewLine();
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ImGui::Text("hex.view.pattern.accept_pattern.question"_lang);
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confirmButtons("hex.common.yes"_lang, "hex.common.no"_lang, [this]{
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this->loadPatternFile(this->m_possiblePatternFiles[this->m_selectedPatternFile]);
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ImGui::CloseCurrentPopup();
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}, []{
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ImGui::CloseCurrentPopup();
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});
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if (ImGui::IsKeyDown(ImGui::GetKeyIndex(ImGuiKey_Escape)))
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ImGui::CloseCurrentPopup();
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ImGui::EndPopup();
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}
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}
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void ViewPattern::loadPatternFile(std::string_view path) {
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FILE *file = fopen(path.data(), "rb");
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if (file != nullptr) {
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char *buffer;
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fseek(file, 0, SEEK_END);
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size_t size = ftell(file);
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rewind(file);
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buffer = new char[size + 1];
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fread(buffer, size, 1, file);
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buffer[size] = 0x00;
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fclose(file);
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this->parsePattern(buffer);
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this->m_textEditor.SetText(buffer);
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delete[] buffer;
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}
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}
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void ViewPattern::clearPatternData() {
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for (auto &data : SharedData::patternData)
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delete data;
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SharedData::patternData.clear();
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lang::PatternData::resetPalette();
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}
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void ViewPattern::parsePattern(char *buffer) {
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this->m_evaluatorRunning = true;
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this->clearPatternData();
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this->m_textEditor.SetErrorMarkers({ });
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this->m_console.clear();
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EventManager::post<EventPatternChanged>();
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std::thread([this, buffer = std::string(buffer)] {
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auto result = this->m_patternLanguageRuntime->executeString(SharedData::currentProvider, buffer);
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auto error = this->m_patternLanguageRuntime->getError();
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if (error.has_value()) {
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this->m_textEditor.SetErrorMarkers({ error.value() });
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}
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this->m_console = this->m_patternLanguageRuntime->getConsoleLog();
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if (result.has_value()) {
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SharedData::patternData = std::move(result.value());
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View::doLater([]{
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EventManager::post<EventPatternChanged>();
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});
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}
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this->m_evaluatorRunning = false;
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}).detach();
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}
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} |