Adding www. before HTTP::host / regexp matching

Hi bigbrother,

I was using tclsh.exe on cygwin for Windows to test with the TCL time command. You could install TCL for Linux and use that. Or you can use an iRule:

when RULE_INIT {
   log local0. "result: [regexp {(?:^\w\w\.domain\.com$)} aa.domain.com]"
}

iRules doesn't currently provide the time command, so you can use timing instead if you want to compare the efficiency of different commands:

http://devcentral.f5.com/wiki/default.aspx/iRules/timing

Note: iRules are currently based on TCL 8.4. So if you want to use the same library on Centos, install 8.4 (not 8.5).

Aaron