142 lines
4.3 KiB
C++
142 lines
4.3 KiB
C++
/* This file is part of epubgrep.
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* Copyright © 2021 tastytea <tastytea@tastytea.de>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, version 3.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "options.hpp"
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#include "search.hpp"
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#include <boost/locale/generator.hpp>
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#include <boost/locale/message.hpp>
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#include <boost/program_options/errors.hpp>
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#include <boost/program_options/variables_map.hpp>
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#include <clocale>
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#include <cstdint>
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#include <cstdlib>
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#include <exception>
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#include <iostream>
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#include <locale>
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#include <string>
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#include <typeinfo>
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#include <vector>
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int main(int argc, char *argv[])
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{
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namespace po = boost::program_options;
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using namespace epubgrep;
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using boost::locale::translate;
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using std::cerr;
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using std::cout;
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// locale_generator("").name.c_str() returns "*" instead of "". That's why
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// the global C locale isn't changed. So we have to set it additionally.
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std::setlocale(LC_ALL, "");
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boost::locale::generator locale_generator;
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locale_generator.add_messages_path("translations");
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locale_generator.add_messages_path("/usr/share/locale");
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locale_generator.add_messages_domain("epubgrep");
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std::locale::global(locale_generator(""));
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cout.imbue(std::locale());
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cerr.imbue(std::locale());
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po::variables_map vm;
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try
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{
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vm = options::parse_options(argc, argv);
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}
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catch (std::exception &e)
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{ // Exceptions we can't recover from or ones we don't know.
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cerr << '\n' << translate("ERROR: ") << e.what() << '\n';
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cerr << translate("Error while parsing options.") << '\n';
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return EXIT_FAILURE;
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}
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if (vm.count("help") + vm.count("version") > 0)
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{
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return EXIT_SUCCESS;
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}
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if (vm.count("input-file") == 0)
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{
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cout << "NO INPUT FILE\n";
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// TODO: Read data from stdin.
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}
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else
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{
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search::options opts;
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if (vm.count("basic-regexp") > 0)
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{
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opts.regex = search::regex_kind::basic;
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}
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if (vm.count("extended-regexp") > 0)
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{
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opts.regex = search::regex_kind::extended;
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}
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if (vm.count("perl-regexp") > 0)
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{
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opts.regex = search::regex_kind::perl;
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}
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if (vm.count("grep") > 0)
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{
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opts.grep_like = true;
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}
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if (vm.count("ignore-case") > 0)
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{
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opts.ignore_case = true;
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}
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if (vm.count("raw") > 0)
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{
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opts.raw = true;
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}
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opts.context = vm["context"].as<std::uint64_t>();
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for (const auto &filepath :
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vm["input-file"].as<std::vector<std::string>>())
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{
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for (const auto ®ex :
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vm["regexp"].as<std::vector<std::string>>())
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{
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try
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{
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for (const auto &match :
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search::search(filepath, regex, opts))
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{
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cout << match.filepath;
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if (!match.headline.empty())
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{
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cout << ", " << match.headline;
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}
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if (!match.page.empty())
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{
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cout << ", page " << match.page;
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}
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cout << ": " << match.context.first << match.text
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<< match.context.second << '\n';
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}
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}
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catch (const std::exception &e)
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{ // Unknown errors.
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cerr << '\n' << translate("ERROR: ") << e.what() << '\n';
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cerr << translate("Error while searching.") << '\n';
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// NOTE: Maybe we should continue with the next regex/file?
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return EXIT_FAILURE;
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}
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}
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}
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}
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}
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