2 * InspIRCd -- Internet Relay Chat Daemon
4 * Copyright (C) 2012 ChrisTX <chris@rev-crew.info>
6 * This file is part of InspIRCd. InspIRCd is free software: you can
7 * redistribute it and/or modify it under the terms of the GNU General Public
8 * License as published by the Free Software Foundation, version 2.
10 * This program is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
12 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 #include "modules/regex.h"
23 /* $CompileFlags: -std=c++11 */
24 /* $ModDep: modules/regex.h */
26 class StdRegexException : public ModuleException
29 StdRegexException(const std::string& rx, const std::string& error)
30 : ModuleException(std::string("Error in regex ") + rx + ": " + error)
35 class StdRegex : public Regex
40 StdRegex(const std::string& rx, std::regex::flag_type fltype) : Regex(rx)
43 regexcl.assign(rx, fltype | std::regex::optimize);
45 catch(std::regex_error rxerr)
47 throw StdRegexException(rx, rxerr.what());
51 bool Matches(const std::string& text)
53 return std::regex_search(text, regexcl);
57 class StdRegexFactory : public RegexFactory
60 std::regex::flag_type regextype;
61 StdRegexFactory(Module* m) : RegexFactory(m, "regex/stdregex") {}
62 Regex* Create(const std::string& expr)
64 return new StdRegex(expr, regextype);
68 class ModuleRegexStd : public Module
72 ModuleRegexStd() : ref(this)
74 ServerInstance->Modules->AddService(ref);
75 Implementation eventlist[] = { I_OnRehash };
76 ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation));
80 Version GetVersion() CXX11_OVERRIDE
82 return Version("Regex Provider Module for std::regex", VF_VENDOR);
85 void OnRehash(User* u) CXX11_OVERRIDE
87 ConfigTag* Conf = ServerInstance->Config->ConfValue("stdregex");
88 std::string regextype = Conf->getString("type", "ecmascript");
90 if(regextype == "bre")
91 ref.regextype = std::regex::basic;
92 else if(regextype == "ere")
93 ref.regextype = std::regex::extended;
94 else if(regextype == "awk")
95 ref.regextype = std::regex::awk;
96 else if(regextype == "grep")
97 ref.regextype = std::regex::grep;
98 else if(regextype == "egrep")
99 ref.regextype = std::regex::egrep;
102 if(regextype != "ecmascript")
103 ServerInstance->SNO->WriteToSnoMask('a', "WARNING: Non-existent regex engine '%s' specified. Falling back to ECMAScript.", regextype.c_str());
104 ref.regextype = std::regex::ECMAScript;
109 MODULE_INIT(ModuleRegexStd)