mirror of
https://github.com/anope/anope.git
synced 2026-06-12 17:04:47 +02:00
Sadie Powell
114 lines
2.6 KiB
C++
114 lines
2.6 KiB
C++
// Anope IRC Services <https://www.anope.org/>
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//
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// Copyright (C) 2003-2026 Anope Contributors
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//
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// Anope is free software. You can use, modify, and/or distribute it under the
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// terms of version 2 of the GNU General Public License. See docs/LICENSE.txt
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// for the complete terms of this license and docs/AUTHORS.txt for a list of
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// contributors.
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//
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// Based on the original code of Epona by Lara
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// Based on the original code of Services by Andy Church
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//
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// SPDX-License-Identifier: GPL-2.0-only
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#include "module.h"
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#include <regex>
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class StdLibRegex final
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: public Regex
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{
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private:
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std::regex regex;
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public:
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StdLibRegex(const Anope::string &expr, std::regex::flag_type type)
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: Regex(expr)
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{
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try
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{
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regex.assign(expr.str(), type | std::regex::optimize);
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}
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catch (const std::regex_error &error)
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{
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throw RegexException("Error in regex " + expr + ": " + error.what());
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}
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}
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bool Matches(const Anope::string &str)
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{
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return std::regex_search(str.str(), regex);
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}
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};
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class StdLibRegexProvider final
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: public RegexProvider
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{
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public:
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std::regex_constants::syntax_option_type type;
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StdLibRegexProvider(Module *creator)
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: RegexProvider(creator, "regex/stdlib")
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{
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}
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Regex *Compile(const Anope::string &expression) override
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{
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return new StdLibRegex(expression, type);
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}
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};
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class ModuleRegexStdLib final
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: public Module
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{
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private:
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StdLibRegexProvider stdlib_regex_provider;
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public:
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ModuleRegexStdLib(const Anope::string &modname, const Anope::string &creator)
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: Module(modname, creator, EXTRA | VENDOR)
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, stdlib_regex_provider(this)
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{
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this->SetPermanent(true);
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}
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void OnReload(Configuration::Conf &conf) override
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{
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const auto &block = conf.GetModule(this);
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const Anope::string syntax = block.Get<const Anope::string>("syntax", "ecmascript");
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if (syntax == "awk")
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stdlib_regex_provider.type = std::regex::awk;
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else if (syntax == "basic")
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stdlib_regex_provider.type = std::regex::basic;
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else if (syntax == "ecmascript")
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stdlib_regex_provider.type = std::regex::ECMAScript;
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else if (syntax == "egrep")
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stdlib_regex_provider.type = std::regex::egrep;
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else if (syntax == "extended")
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stdlib_regex_provider.type = std::regex::extended;
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else if (syntax == "grep")
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stdlib_regex_provider.type = std::regex::grep;
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else
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throw ConfigException(this->name + ": syntax must be set to awk, basic, ecmascript, egrep, extended, or grep.");
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}
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~ModuleRegexStdLib()
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{
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for (auto *xlm : XLineManager::XLineManagers)
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{
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for (auto *x : xlm->GetList())
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{
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if (x->regex && dynamic_cast<StdLibRegex *>(x->regex))
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{
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delete x->regex;
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x->regex = NULL;
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}
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}
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}
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}
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};
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MODULE_INIT(ModuleRegexStdLib)
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