Added regex support for many commands, such as akill, sqline, snline,

all of the */list commands, etc.

Also extended the ability of akill to match a full nick!user@host and
real name of users.

3 files changed, 170 insertions, 0 deletions

diff --git a/modules/extra/m_regex_pcre.cpp b/modules/extra/m_regex_pcre.cpp
new file mode 100644
index 000000000..998a7692d
--- /dev/null
+++ b/modules/extra/m_regex_pcre.cpp
@@ -0,0 +1,55 @@
+/* RequiredLibraries: pcre */
+
+#include "module.h"
+#include <pcre.h>
+
+class PCRERegex : public Regex
+{
+	pcre *regex;
+
+ public:
+	PCRERegex(const Anope::string &expr) : Regex(expr)
+	{
+		const char *error;
+		int erroffset;
+		this->regex = pcre_compile(expr.c_str(), PCRE_CASELESS, &error, &erroffset, NULL);
+		if (!this->regex)
+			throw RegexException("Error in regex " + expr + " at offset " + stringify(erroffset) + ": " + error); 
+	}
+
+	~PCRERegex()
+	{
+		pcre_free(this->regex);
+	}
+
+	bool Matches(const Anope::string &str)
+	{
+		return pcre_exec(this->regex, NULL, str.c_str(), str.length(), 0, 0, NULL, 0) > -1;
+	}
+};
+
+class PCRERegexProvider : public RegexProvider
+{
+ public:
+	PCRERegexProvider(Module *creator) : RegexProvider(creator, "regex/pcre") { }
+
+	Regex *Compile(const Anope::string &expression) anope_override
+	{
+		return new PCRERegex(expression);
+	}
+};
+
+class ModuleRegexPCRE : public Module
+{
+	PCRERegexProvider pcre_regex_provider;
+
+ public:
+	ModuleRegexPCRE(const Anope::string &modname, const Anope::string &creator) : Module(modname, creator, SUPPORTED),
+		pcre_regex_provider(this)
+	{
+		this->SetAuthor("Anope");
+		this->SetPermanent(true);
+	}
+};
+
+MODULE_INIT(ModuleRegexPCRE)
diff --git a/modules/extra/m_regex_posix.cpp b/modules/extra/m_regex_posix.cpp
new file mode 100644
index 000000000..409a057ba
--- /dev/null
+++ b/modules/extra/m_regex_posix.cpp
@@ -0,0 +1,57 @@
+#include "module.h"
+#include <sys/types.h>
+#include <regex.h>
+
+class POSIXRegex : 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);
+		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 : public RegexProvider
+{
+ public:
+	POSIXRegexProvider(Module *creator) : RegexProvider(creator, "regex/posix") { }
+
+	Regex *Compile(const Anope::string &expression) anope_override
+	{
+		return new POSIXRegex(expression);
+	}
+};
+
+class ModuleRegexPOSIX : public Module
+{
+	POSIXRegexProvider posix_regex_provider;
+
+ public:
+	ModuleRegexPOSIX(const Anope::string &modname, const Anope::string &creator) : Module(modname, creator, SUPPORTED),
+		posix_regex_provider(this)
+	{
+		this->SetAuthor("Anope");
+		this->SetPermanent(true);
+	}
+};
+
+MODULE_INIT(ModuleRegexPOSIX)
diff --git a/modules/extra/m_regex_tre.cpp b/modules/extra/m_regex_tre.cpp
new file mode 100644
index 000000000..8cfbd3b18
--- /dev/null
+++ b/modules/extra/m_regex_tre.cpp
@@ -0,0 +1,58 @@
+/* RequiredLibraries: tre */
+
+#include "module.h"
+#include <tre/regex.h>
+
+class TRERegex : public Regex
+{
+	regex_t regbuf;
+
+ public:
+	TRERegex(const Anope::string &expr) : Regex(expr)
+	{
+		int err = regcomp(&this->regbuf, expr.c_str(), REG_EXTENDED | REG_NOSUB);
+		if (err)
+		{
+			char buf[BUFSIZE];
+			regerror(err, &this->regbuf, buf, sizeof(buf));
+			regfree(&this->regbuf);
+			throw RegexException("Error in regex " + expr + ": " + buf);
+		}
+	}
+
+	~TRERegex()
+	{
+		regfree(&this->regbuf);
+	}
+
+	bool Matches(const Anope::string &str)
+	{
+		return regexec(&this->regbuf, str.c_str(), 0, NULL, 0) == 0;
+	}
+};
+
+class TRERegexProvider : public RegexProvider
+{
+ public:
+	TRERegexProvider(Module *creator) : RegexProvider(creator, "regex/tre") { }
+
+	Regex *Compile(const Anope::string &expression) anope_override
+	{
+		return new TRERegex(expression);
+	}
+};
+
+class ModuleRegexTRE : public Module
+{
+	TRERegexProvider tre_regex_provider;
+
+ public:
+	ModuleRegexTRE(const Anope::string &modname, const Anope::string &creator) : Module(modname, creator, SUPPORTED),
+		tre_regex_provider(this)
+	{
+		this->SetAuthor("Anope");
+		this->SetPermanent(true);
+	}
+};
+
+MODULE_INIT(ModuleRegexTRE)