how to change a string ,such as add a number after some letters

Try something like:

regsub {^([^\.]*).} [HTTP::host] {${1}2.} newhost
log local0. "[HTTP:host]  $newhost"

While regsub would technically work, it's going to induce a lot of overhead. There are lots of other ways to go about that: scan, string map, etc.

 

 

Also, if you're looking at maintaining a list of origin -> modified domains, then you might be better of creating a data group to store them in and just do the translation in the code, rather than building out a complex regsub or the like.

 

 

Colin

 

I think something like this should work:

switch [string tolower [HTTP::host]] {
   "cjj.com" {
      HTTP::header replace Host "cjj2.com"
   }
   default {
      HTTP::header replace Host "[getfield [HTTP::host] "cjj2.com" 1]2.cjj.com"
   }
}

Aaron

Hi,all friends,I use irule below to achieve this:

 

switch -glob [string tolower [HTTP::host]] {

 

"srwd29.com" -

 

"www.srwd29.com" {

 

scan [HTTP::host] {%[^.]%s} domainfirst domainleft

 

set num 2

 

HTTP::redirect "http://$domainfirst$num$domainleft[HTTP::uri]"

 

}

 

I try to add "2" after $domainfirst( HTTP::redirect "http://$domainfirst2$domainleft[HTTP::uri]"),but it doesn't work ,that is why there is a num variable

 

Thank you for your great help

 

I'm glad to see that you got it working. Bonus points for using the scan command, very cool and efficient. ;)

 

 

Colin

haha,thanks,I have learned a lot from here

 

Thanks!

Hi,by the way,do u know why I can't add number "2" in HTTP::redirect "http://$domainfirst2$domainleft[HTTP::uri],how to achieve this?

 

Did I miss something?

 

It's not working because it doesn't know where the first variable stops, and is trying to incorporate the 2 as part of the variable name.

Try this instead:

HTTP::redirect "http://${domainfirst}2${domainleft}[HTTP::uri]"

Here's an example in tclsh:

% set h1 www.srwd      
www.srwd
% set h2 9.com
9.com
% puts $h1$h2
www.srwd9.com
% puts $h12$h2
can't read "h12": no such variable
% puts ${h1}2${h2}
www.srwd29.com
% 

Colin

oh,Colin

 

great,it works

 

thanks