From 97aba4f8a57877ab68ddd618b96f52342970f998 Mon Sep 17 00:00:00 2001
From: Sadie Powell
Date: Tue, 31 Jul 2018 03:14:09 +0100
Subject: Move m_regex_stdlib out of extras now it can always be built.

---
 src/modules/m_regex_stdlib.cpp | 94 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 94 insertions(+)
 create mode 100644 src/modules/m_regex_stdlib.cpp

(limited to 'src/modules/m_regex_stdlib.cpp')

diff --git a/src/modules/m_regex_stdlib.cpp b/src/modules/m_regex_stdlib.cpp
new file mode 100644
index 000000000..269e64c75
--- /dev/null
+++ b/src/modules/m_regex_stdlib.cpp
@@ -0,0 +1,94 @@
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
+ *
+ *   Copyright (C) 2012 ChrisTX <chris@rev-crew.info>
+ *
+ * This file is part of InspIRCd.  InspIRCd is free software: you can
+ * redistribute it and/or modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation, version 2.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include "inspircd.h"
+#include "modules/regex.h"
+#include <regex>
+
+class StdRegex : public Regex
+{
+	std::regex regexcl;
+
+ public:
+	StdRegex(const std::string& rx, std::regex::flag_type fltype) : Regex(rx)
+	{
+		try{
+			regexcl.assign(rx, fltype | std::regex::optimize);
+		}
+		catch(std::regex_error rxerr)
+		{
+			throw RegexException(rx, rxerr.what());
+		}
+	}
+
+	bool Matches(const std::string& text) override
+	{
+		return std::regex_search(text, regexcl);
+	}
+};
+
+class StdRegexFactory : public RegexFactory
+{
+ public:
+	std::regex::flag_type regextype;
+	StdRegexFactory(Module* m) : RegexFactory(m, "regex/stdregex") {}
+	Regex* Create(const std::string& expr) override
+	{
+		return new StdRegex(expr, regextype);
+	}
+};
+
+class ModuleRegexStd : public Module
+{
+public:
+	StdRegexFactory ref;
+	ModuleRegexStd() : ref(this)
+	{
+	}
+
+	Version GetVersion() override
+	{
+		return Version("Regex Provider Module for std::regex", VF_VENDOR);
+	}
+
+	void ReadConfig(ConfigStatus& status) override
+	{
+		ConfigTag* Conf = ServerInstance->Config->ConfValue("stdregex");
+		std::string regextype = Conf->getString("type", "ecmascript");
+
+		if (stdalgo::string::equalsci(regextype, "bre"))
+			ref.regextype = std::regex::basic;
+		else if (stdalgo::string::equalsci(regextype, "ere"))
+			ref.regextype = std::regex::extended;
+		else if (stdalgo::string::equalsci(regextype, "awk"))
+			ref.regextype = std::regex::awk;
+		else if (stdalgo::string::equalsci(regextype, "grep"))
+			ref.regextype = std::regex::grep;
+		else if (stdalgo::string::equalsci(regextype, "egrep"))
+			ref.regextype = std::regex::egrep;
+		else
+		{
+			if (!stdalgo::string::equalsci(regextype, "ecmascript"))
+				ServerInstance->SNO->WriteToSnoMask('a', "WARNING: Non-existent regex engine '%s' specified. Falling back to ECMAScript.", regextype.c_str());
+			ref.regextype = std::regex::ECMAScript;
+		}
+	}
+};
+
+MODULE_INIT(ModuleRegexStd)
-- 
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