131 lines
3.7 KiB
C++
131 lines
3.7 KiB
C++
#include "qtcommon.h"
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#include "extension.h"
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#include <fstream>
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#include <QPlainTextEdit>
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extern const char* LUA_INTRO;
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extern const char* LOAD_LUA_SCRIPT;
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extern const wchar_t* LUA_ERROR;
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constexpr auto LUA_SAVE_FILE = u8"Textractor.lua";
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extern "C" // Lua library
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{
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enum LuaType { LUA_TNIL, LUA_TBOOLEAN, LUA_TLIGHTUSERDATA, LUA_TNUMBER, LUA_TSTRING, LUA_TTABLE, LUA_TFUNCTION, LUA_TUSERDATA, LUA_TTHREAD };
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enum LuaStatus { LUA_OK, LUA_YIELD, LUA_ERRRUN, LUA_ERRSYNTAX, LUA_ERRMEM, LUA_ERRGCMM, LUA_ERRERR };
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struct lua_State;
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lua_State* luaL_newstate();
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void luaL_openlibs(lua_State*);
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void lua_close(lua_State*);
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LuaStatus luaL_loadstring(lua_State*, const char* str);
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const char* lua_tolstring(lua_State*, int index, size_t* size);
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const char* lua_pushstring(lua_State*, const char* str);
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void lua_pushinteger(lua_State*, int64_t n);
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void lua_createtable(lua_State*, int narr, int nrec);
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void lua_settable(lua_State*, int index);
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void lua_settop(lua_State*, int index);
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LuaType lua_getglobal(lua_State*, const char* name);
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LuaStatus lua_pcallk(lua_State*, int nargs, int nresults, int msgh, void*, void*);
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}
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bool luaL_dostring(lua_State* L, const char* str)
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{
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return luaL_loadstring(L, str) || lua_pcallk(L, 0, -1, 0, NULL, NULL);
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}
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bool logErrors = true;
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Synchronized<std::string> script;
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std::atomic<int> revCount = 0;
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class Window : public QDialog
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{
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public:
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Window()
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: QDialog(nullptr, Qt::WindowMinMaxButtonsHint)
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{
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connect(&loadButton, &QPushButton::clicked, this, &Window::LoadScript);
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if (scriptEditor.toPlainText().isEmpty()) scriptEditor.setPlainText(LUA_INTRO);
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layout.addWidget(&scriptEditor);
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layout.addWidget(&loadButton);
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resize(800, 600);
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setWindowTitle("Lua");
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QMetaObject::invokeMethod(this, &QWidget::show, Qt::QueuedConnection);
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}
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~Window()
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{
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Save();
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}
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private:
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void LoadScript()
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{
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revCount += 1;
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script->assign(scriptEditor.toPlainText().toUtf8());
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Save();
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}
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void Save()
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{
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QTextFile(LUA_SAVE_FILE, QIODevice::WriteOnly | QIODevice::Truncate).write(scriptEditor.toPlainText().toUtf8());
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}
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QHBoxLayout layout{ this };
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QPlainTextEdit scriptEditor{ QTextFile(LUA_SAVE_FILE, QIODevice::ReadOnly).readAll(), this };
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QPushButton loadButton{ LOAD_LUA_SCRIPT, this };
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} window;
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bool ProcessSentence(std::wstring& sentence, SentenceInfo sentenceInfo)
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{
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thread_local static struct { std::unique_ptr<lua_State, Functor<lua_close>> L{ luaL_newstate() }; operator lua_State*() { return L.get(); } } L;
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thread_local static auto _ = (luaL_openlibs(L), luaL_dostring(L, "function ProcessSentence() end"));
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thread_local static int revCount = 0;
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if (::revCount > revCount)
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{
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revCount = ::revCount;
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luaL_dostring(L, "ProcessSentence = nil");
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if (luaL_dostring(L, script.Copy().c_str()) != LUA_OK)
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{
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sentence += L"\n" + FormatString(LUA_ERROR, StringToWideString(lua_tolstring(L, 1, nullptr)));
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lua_settop(L, 0);
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return logErrors;
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}
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}
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if (lua_getglobal(L, "ProcessSentence") != LUA_TFUNCTION)
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{
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sentence += L"\n" + FormatString(LUA_ERROR, L"ProcessSentence is not a function");
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lua_settop(L, 0);
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return logErrors;
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}
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lua_pushstring(L, WideStringToString(sentence).c_str());
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lua_createtable(L, 0, 0);
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for (auto info = sentenceInfo.infoArray; info->name; ++info)
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{
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lua_pushstring(L, info->name);
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lua_pushinteger(L, info->value);
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lua_settable(L, 3);
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}
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if (lua_pcallk(L, 2, 1, 0, NULL, NULL) != LUA_OK)
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{
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sentence += L"\n" + FormatString(LUA_ERROR, StringToWideString(lua_tolstring(L, 1, nullptr)));
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lua_settop(L, 0);
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return logErrors;
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}
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if (const char* newSentence = lua_tolstring(L, 1, nullptr))
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{
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sentence = StringToWideString(newSentence);
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lua_settop(L, 0);
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return true;
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}
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lua_settop(L, 0);
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return false;
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}
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