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/*
*
* (C) 2012-2024 Anope Team
* Contact us at team@anope.org
*
* Please read COPYING and README for further details.
*/
#include "module.h"
#include <regex>
class StdLibRegex final
: public Regex
{
private:
std::regex regex;
public:
StdLibRegex(const Anope::string &expr, std::regex::flag_type type)
: Regex(expr)
{
try
{
regex.assign(expr.str(), type | std::regex::optimize);
}
catch (const std::regex_error &error)
{
throw RegexException("Error in regex " + expr + ": " + error.what());
}
}
bool Matches(const Anope::string &str)
{
return std::regex_search(str.str(), regex);
}
};
class StdLibRegexProvider final
: public RegexProvider
{
public:
std::regex_constants::syntax_option_type type;
StdLibRegexProvider(Module *creator)
: RegexProvider(creator, "regex/stdlib")
{
}
Regex *Compile(const Anope::string &expression) override
{
return new StdLibRegex(expression, type);
}
};
class ModuleRegexStdLib final
: public Module
{
private:
StdLibRegexProvider stdlib_regex_provider;
public:
ModuleRegexStdLib(const Anope::string &modname, const Anope::string &creator)
: Module(modname, creator, EXTRA | VENDOR)
, stdlib_regex_provider(this)
{
this->SetPermanent(true);
}
void OnReload(Configuration::Conf *conf) override
{
Configuration::Block *block = conf->GetModule(this);
const Anope::string syntax = block->Get<const Anope::string>("syntax", "ecmascript");
if (syntax == "awk")
stdlib_regex_provider.type = std::regex::awk;
else if (syntax == "basic")
stdlib_regex_provider.type = std::regex::basic;
else if (syntax == "ecmascript")
stdlib_regex_provider.type = std::regex::ECMAScript;
else if (syntax == "egrep")
stdlib_regex_provider.type = std::regex::egrep;
else if (syntax == "extended")
stdlib_regex_provider.type = std::regex::extended;
else if (syntax == "grep")
stdlib_regex_provider.type = std::regex::grep;
else
throw ConfigException(this->name + ": syntax must be set to awk, basic, ecmascript, egrep, extended, or grep.");
}
~ModuleRegexStdLib()
{
for (auto *xlm : XLineManager::XLineManagers)
{
for (auto *x : xlm->GetList())
{
if (x->regex && dynamic_cast<StdLibRegex *>(x->regex))
{
delete x->regex;
x->regex = NULL;
}
}
}
}
};
MODULE_INIT(ModuleRegexStdLib)
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