forked from Public-Mirror/Textractor
73 lines
2.3 KiB
C++
73 lines
2.3 KiB
C++
#include "extension.h"
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#include "module.h"
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#include "blockmarkup.h"
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#include <fstream>
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#include <process.h>
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extern const wchar_t* REGEX_REPLACER_INSTRUCTIONS;
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const char* REPLACE_SAVE_FILE = "SavedRegexReplacements.txt";
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std::atomic<std::filesystem::file_time_type> replaceFileLastWrite = {};
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concurrency::reader_writer_lock m;
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std::vector<std::tuple<std::wregex, std::wstring, std::regex_constants::match_flag_type>> replacements;
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void UpdateReplacements()
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{
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try
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{
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if (replaceFileLastWrite.exchange(std::filesystem::last_write_time(REPLACE_SAVE_FILE)) == std::filesystem::last_write_time(REPLACE_SAVE_FILE)) return;
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std::scoped_lock lock(m);
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replacements.clear();
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std::ifstream stream(REPLACE_SAVE_FILE, std::ios::binary);
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BlockMarkupIterator savedFilters(stream, Array<std::wstring_view>{ L"|REGEX|", L"|BECOMES|", L"|MODIFIER|" });
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while (auto read = savedFilters.Next())
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{
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const auto& [regex, replacement, modifier] = read.value();
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try
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{
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replacements.emplace_back(
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std::wregex(regex, modifier.find(L'i') == std::string::npos ? std::regex::ECMAScript : std::regex::icase),
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replacement,
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modifier.find(L'g') == std::string::npos ? std::regex_constants::format_first_only : std::regex_constants::format_default
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);
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}
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catch (std::regex_error) {}
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}
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}
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catch (std::filesystem::filesystem_error) { replaceFileLastWrite.store({}); }
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}
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BOOL WINAPI DllMain(HMODULE hModule, DWORD ul_reason_for_call, LPVOID lpReserved)
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{
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switch (ul_reason_for_call)
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{
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case DLL_PROCESS_ATTACH:
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{
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UpdateReplacements();
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if (replacements.empty())
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{
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auto file = std::ofstream(REPLACE_SAVE_FILE, std::ios::binary) << "\xff\xfe";
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for (auto ch : std::wstring_view(REGEX_REPLACER_INSTRUCTIONS))
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file << (ch == L'\n' ? std::string_view("\r\0\n", 4) : std::string_view((char*)&ch, 2));
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SpawnThread([] { _spawnlp(_P_DETACH, "notepad", "notepad", REPLACE_SAVE_FILE, NULL); }); // show file to user
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}
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}
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break;
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case DLL_PROCESS_DETACH:
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{
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}
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break;
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}
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return TRUE;
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}
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bool ProcessSentence(std::wstring& sentence, SentenceInfo sentenceInfo)
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{
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UpdateReplacements();
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concurrency::reader_writer_lock::scoped_lock_read readLock(m);
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for (const auto& [regex, replacement, flags] : replacements) sentence = std::regex_replace(sentence, regex, replacement, flags);
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return true;
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}
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