1 files changed, 82 insertions, 0 deletions
diff --git a/modules/extra/regex_posix.cpp b/modules/extra/regex_posix.cpp
new file mode 100644
index 000000000..cef4486f9
--- /dev/null
+++ b/modules/extra/regex_posix.cpp
@@ -0,0 +1,82 @@
+/*
+ *
+ * (C) 2012-2024 Anope Team
+ * Contact us at team@anope.org
+ *
+ * Please read COPYING and README for further details.
+ */
+
+#include "module.h"
+#include <sys/types.h>
+#include <regex.h>
+
+class POSIXRegex final
+	: public Regex
+{
+	regex_t regbuf;
+
+public:
+	POSIXRegex(const Anope::string &expr) : Regex(expr)
+	{
+		int err = regcomp(&this->regbuf, expr.c_str(), REG_EXTENDED | REG_NOSUB | REG_ICASE);
+		if (err)
+		{
+			char buf[BUFSIZE];
+			regerror(err, &this->regbuf, buf, sizeof(buf));
+			regfree(&this->regbuf);
+			throw RegexException("Error in regex " + expr + ": " + buf);
+		}
+	}
+
+	~POSIXRegex()
+	{
+		regfree(&this->regbuf);
+	}
+
+	bool Matches(const Anope::string &str)
+	{
+		return regexec(&this->regbuf, str.c_str(), 0, NULL, 0) == 0;
+	}
+};
+
+class POSIXRegexProvider final
+	: public RegexProvider
+{
+public:
+	POSIXRegexProvider(Module *creator) : RegexProvider(creator, "regex/posix") { }
+
+	Regex *Compile(const Anope::string &expression) override
+	{
+		return new POSIXRegex(expression);
+	}
+};
+
+class ModuleRegexPOSIX final
+	: public Module
+{
+	POSIXRegexProvider posix_regex_provider;
+
+public:
+	ModuleRegexPOSIX(const Anope::string &modname, const Anope::string &creator) : Module(modname, creator, EXTRA | VENDOR),
+		posix_regex_provider(this)
+	{
+		this->SetPermanent(true);
+	}
+
+	~ModuleRegexPOSIX()
+	{
+		for (auto *xlm : XLineManager::XLineManagers)
+		{
+			for (auto *x : xlm->GetList())
+			{
+				if (x->regex && dynamic_cast<POSIXRegex *>(x->regex))
+				{
+					delete x->regex;
+					x->regex = NULL;
+				}
+			}
+		}
+	}
+};
+
+MODULE_INIT(ModuleRegexPOSIX)