[smuxi: 71/111] Engine: use compiled regexes in MessageBuilderSettings

[Mirco M. M. Bauer <mmmbauer src gnome org>]

commit 9a393b341b9b51c11506486016220890bd717735
Author: Mirco Bauer <meebey meebey net>
Date:   Sun Jan 12 08:10:05 2014 +0100

    Engine: use compiled regexes in MessageBuilderSettings
    
    This is not making a change with Mono (as of Mono up to 3.2.5) because the regex
    compiler is disabled except MONO_NEW_RX=1 [0] is set as an environment variable.
    Enabling this reduces the regex performance on Mono though. The regex compiler
    is disabled by default because of uncertain regressions as noted here [1]. On
    MS .NET this change should give a nice performance boost as seen here [2].
    
     [0]: 
https://github.com/mono/mono/blob/4db812ca7e6c4d4f8a43e6a40adeb8c111f0ddc0/mcs/class/System/System.Text.RegularExpressions/Regex.cs#L339
     [1]: https://bugzilla.novell.com/show_bug.cgi?id=470827
     [2]: http://stackoverflow.com/a/7707369

 src/Engine/Config/MessageBuilderSettings.cs |   84 ++++++++++++++++++---------
 1 files changed, 57 insertions(+), 27 deletions(-)
---
diff --git a/src/Engine/Config/MessageBuilderSettings.cs b/src/Engine/Config/MessageBuilderSettings.cs
index e59513c..d7974c4 100644
--- a/src/Engine/Config/MessageBuilderSettings.cs
+++ b/src/Engine/Config/MessageBuilderSettings.cs
@@ -81,7 +81,8 @@ namespace Smuxi.Engine
 
             // facebook attachment
             var regex = new Regex(
-                @"(<[1-9][0-9]* attachments?>) 
(http://www\.facebook\.com/messages/\?action=read&tid=[0-9a-f]+)"
+                @"(<[1-9][0-9]* attachments?>) 
(http://www\.facebook\.com/messages/\?action=read&tid=[0-9a-f]+)",
+                RegexOptions.Compiled
             );
             BuiltinSmartLinks.Add(new SmartLink(regex) {
                 LinkFormat = "{2}",
@@ -89,11 +90,17 @@ namespace Smuxi.Engine
             });
 
             // protocol://domain
-            regex = new Regex(@"[a-z][a-z0-9\-]*://" + address, RegexOptions.IgnoreCase);
+            regex = new Regex(
+                @"[a-z][a-z0-9\-]*://" + address,
+                RegexOptions.IgnoreCase | RegexOptions.Compiled
+            );
             BuiltinSmartLinks.Add(new SmartLink(regex));
 
             // email
-            regex = new Regex(@"(?:mailto:)?(" + user_domain + ")", RegexOptions.IgnoreCase);
+            regex = new Regex(
+                @"(?:mailto:)?(" + user_domain + ")",
+                RegexOptions.IgnoreCase | RegexOptions.Compiled
+            );
             BuiltinSmartLinks.Add(new SmartLink(regex) {
                 LinkFormat = "mailto:{1}";
             });
@@ -103,19 +110,21 @@ namespace Smuxi.Engine
             // Gst.Buffer.Unref() from matching
             string heuristic_domain = @"(?:(?:" + subdomain + ")+(?:" + common_tld + ")|localhost)";
             string heuristic_address = heuristic_domain + "(?:" + path + ")?";
-            regex = new Regex(heuristic_address, RegexOptions.IgnoreCase);
+            regex = new Regex(heuristic_address,
+                              RegexOptions.IgnoreCase | RegexOptions.Compiled);
             BuiltinSmartLinks.Add(new SmartLink(regex) {
                 LinkFormat = "http://{0}";
             });
 
             // Smuxi bugtracker
-            regex = new Regex(@"smuxi#([0-9]+)", RegexOptions.IgnoreCase);
+            regex = new Regex(@"smuxi#([0-9]+)",
+                              RegexOptions.IgnoreCase | RegexOptions.Compiled);
             BuiltinSmartLinks.Add(new SmartLink(regex) {
                 LinkFormat = "http://www.smuxi.org/issues/show/{1}";
             });
 
             // RFCs
-            regex = new Regex(@"RFC[ -]?([0-9]+)");
+            regex = new Regex(@"RFC[ -]?([0-9]+)", RegexOptions.Compiled);
             BuiltinSmartLinks.Add(new SmartLink(regex) {
                 LinkFormat = "http://www.ietf.org/rfc/rfc{1}.txt";
             });
@@ -124,127 +133,148 @@ namespace Smuxi.Engine
             // http://en.opensuse.org/openSUSE:Packaging_Patches_guidelines#Current_set_of_abbreviations
 
             // boost bugtracker
-            regex = new Regex(@"boost#([0-9]+)", RegexOptions.IgnoreCase);
+            regex = new Regex(@"boost#([0-9]+)",
+                              RegexOptions.IgnoreCase | RegexOptions.Compiled);
             BuiltinSmartLinks.Add(new SmartLink(regex) {
                 LinkFormat = "https://svn.boost.org/trac/boost/ticket/{1}";
             });
 
             // Claws bugtracker
-            regex = new Regex(@"claws#([0-9]+)", RegexOptions.IgnoreCase);
+            regex = new Regex(@"claws#([0-9]+)",
+                              RegexOptions.IgnoreCase | RegexOptions.Compiled);
             BuiltinSmartLinks.Add(new SmartLink(regex) {
                 LinkFormat = "http://www.thewildbeast.co.uk/claws-mail/bugzilla/show_bug.cgi?id={1}";
             });
 
             // CVE list
-            regex = new Regex(@"CVE-[0-9]{4}-[0-9]{4,}", RegexOptions.IgnoreCase);
+            regex = new Regex(@"CVE-[0-9]{4}-[0-9]{4,}",
+                              RegexOptions.IgnoreCase | RegexOptions.Compiled);
             BuiltinSmartLinks.Add(new SmartLink(regex) {
                 LinkFormat = "http://cve.mitre.org/cgi-bin/cvename.cgi?name={0}";
             });
 
             // CPAN bugtracker
-            regex = new Regex(@"RT#([0-9]+)", RegexOptions.IgnoreCase);
+            regex = new Regex(@"RT#([0-9]+)",
+                              RegexOptions.IgnoreCase | RegexOptions.Compiled);
             BuiltinSmartLinks.Add(new SmartLink(regex) {
                 LinkFormat = "http://rt.cpan.org/Public/Bug/Display.html?id={1}";
             });
 
             // Debian bugtracker
-            regex = new Regex(@"deb#([0-9]+)", RegexOptions.IgnoreCase);
+            regex = new Regex(@"deb#([0-9]+)",
+                              RegexOptions.IgnoreCase | RegexOptions.Compiled);
             BuiltinSmartLinks.Add(new SmartLink(regex) {
                 LinkFormat = "http://bugs.debian.org/{1}";
             });
 
             // Debian Security Advisories (DSA)
-            regex = new Regex(@"DSA-([0-9]{4})(-[0-9]{1,2})?", RegexOptions.IgnoreCase);
+            regex = new Regex(@"DSA-([0-9]{4})(-[0-9]{1,2})?",
+                              RegexOptions.IgnoreCase | RegexOptions.Compiled);
             BuiltinSmartLinks.Add(new SmartLink(regex) {
                 LinkFormat = "http://www.debian.org/security/dsa-{1}";
             });
 
             // openSUSE feature tracker
-            regex = new Regex(@"fate#([0-9]+)", RegexOptions.IgnoreCase);
+            regex = new Regex(@"fate#([0-9]+)",
+                              RegexOptions.IgnoreCase | RegexOptions.Compiled);
             BuiltinSmartLinks.Add(new SmartLink(regex) {
                 LinkFormat = "http://features.opensuse.org/{1}";
             });
 
             // freedesktop bugtracker
-            regex = new Regex(@"fdo#([0-9]+)", RegexOptions.IgnoreCase);
+            regex = new Regex(@"fdo#([0-9]+)",
+                              RegexOptions.IgnoreCase | RegexOptions.Compiled);
             BuiltinSmartLinks.Add(new SmartLink(regex) {
                 LinkFormat = "http://bugs.freedesktop.org/{1}";
             });
 
             // GNU bugtracker
-            regex = new Regex(@"gnu#([0-9]+)", RegexOptions.IgnoreCase);
+            regex = new Regex(@"gnu#([0-9]+)",
+                              RegexOptions.IgnoreCase | RegexOptions.Compiled);
             BuiltinSmartLinks.Add(new SmartLink(regex) {
                 LinkFormat = "http://debbugs.gnu.org/{1}";
             });
 
             // GCC bugtracker
-            regex = new Regex(@"gcc#([0-9]+)", RegexOptions.IgnoreCase);
+            regex = new Regex(@"gcc#([0-9]+)",
+                              RegexOptions.IgnoreCase | RegexOptions.Compiled);
             BuiltinSmartLinks.Add(new SmartLink(regex) {
                 LinkFormat = "http://gcc.gnu.org/bugzilla/show_bug.cgi?id={1}";
             });
 
             // GNOME bugtracker
-            regex = new Regex(@"bgo#([0-9]+)", RegexOptions.IgnoreCase);
+            regex = new Regex(@"bgo#([0-9]+)",
+                              RegexOptions.IgnoreCase | RegexOptions.Compiled);
             BuiltinSmartLinks.Add(new SmartLink(regex) {
                 LinkFormat = "http://bugzilla.gnome.org/{1}";
             });
 
             // KDE bugtracker
-            regex = new Regex(@"kde#([0-9]+)", RegexOptions.IgnoreCase);
+            regex = new Regex(@"kde#([0-9]+)",
+                              RegexOptions.IgnoreCase | RegexOptions.Compiled);
             BuiltinSmartLinks.Add(new SmartLink(regex) {
                 LinkFormat = "http://bugs.kde.org/{1}";
             });
 
             // kernel bugtracker
-            regex = new Regex(@"bko#([0-9]+)", RegexOptions.IgnoreCase);
+            regex = new Regex(@"bko#([0-9]+)",
+                              RegexOptions.IgnoreCase | RegexOptions.Compiled);
             BuiltinSmartLinks.Add(new SmartLink(regex) {
                 LinkFormat = "http://bugzilla.kernel.org/show_bug.cgi?id={1}";
             });
 
             // launchpad bugtracker
-            regex = new Regex(@"LP#([0-9]+)", RegexOptions.IgnoreCase);
+            regex = new Regex(@"LP#([0-9]+)",
+                              RegexOptions.IgnoreCase | RegexOptions.Compiled);
             BuiltinSmartLinks.Add(new SmartLink(regex) {
                 LinkFormat = "http://launchpad.net/bugs/{1}";
             });
 
             // Mozilla bugtracker
-            regex = new Regex(@"bmo#([0-9]+)", RegexOptions.IgnoreCase);
+            regex = new Regex(@"bmo#([0-9]+)",
+                              RegexOptions.IgnoreCase | RegexOptions.Compiled);
             BuiltinSmartLinks.Add(new SmartLink(regex) {
                 LinkFormat = "http://bugzilla.mozilla.org/{1}";
             });
 
             // Novell bugtracker
-            regex = new Regex(@"bnc#([0-9]+)", RegexOptions.IgnoreCase);
+            regex = new Regex(@"bnc#([0-9]+)",
+                              RegexOptions.IgnoreCase | RegexOptions.Compiled);
             BuiltinSmartLinks.Add(new SmartLink(regex) {
                 LinkFormat = "http://bugzilla.novell.com/{1}";
             });
 
             // Redhat bugtracker
-            regex = new Regex(@"rh#([0-9]+)", RegexOptions.IgnoreCase);
+            regex = new Regex(@"rh#([0-9]+)",
+                              RegexOptions.IgnoreCase | RegexOptions.Compiled);
             BuiltinSmartLinks.Add(new SmartLink(regex) {
                 LinkFormat = "http://bugzilla.redhat.com/{1}";
             });
 
             // Samba bugtracker
-            regex = new Regex(@"bso#([0-9]+)", RegexOptions.IgnoreCase);
+            regex = new Regex(@"bso#([0-9]+)",
+                              RegexOptions.IgnoreCase | RegexOptions.Compiled);
             BuiltinSmartLinks.Add(new SmartLink(regex) {
                 LinkFormat = "http://bugzilla.samba.org/show_bug.cgi?id={1}";
             });
 
             // sourceforge bugtracker
-            regex = new Regex(@"sf#([0-9]+)", RegexOptions.IgnoreCase);
+            regex = new Regex(@"sf#([0-9]+)",
+                              RegexOptions.IgnoreCase | RegexOptions.Compiled);
             BuiltinSmartLinks.Add(new SmartLink(regex) {
                 LinkFormat = "http://sf.net/support/tracker.php?aid={1}";
             });
 
             // Xfce bugtracker
-            regex = new Regex(@"bxo#([0-9]+)", RegexOptions.IgnoreCase);
+            regex = new Regex(@"bxo#([0-9]+)",
+                              RegexOptions.IgnoreCase | RegexOptions.Compiled);
             BuiltinSmartLinks.Add(new SmartLink(regex) {
                 LinkFormat = "http://bugzilla.xfce.org/show_bug.cgi?id={1}";
             });
 
             // Xamarin bugtracker
-            regex = new Regex(@"bxc#([0-9]+)", RegexOptions.IgnoreCase);
+            regex = new Regex(@"bxc#([0-9]+)",
+                              RegexOptions.IgnoreCase | RegexOptions.Compiled);
             BuiltinSmartLinks.Add(new SmartLink(regex) {
                 LinkFormat = "http://bugzilla.xamarin.com/show_bug.cgi?id={1}";
             });