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Kevin_Stewart's avatar
Kevin_Stewart
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Jul 14, 2015

Here's one option that avoids regular expressions:

when HTTP_REQUEST {
    if { [string index [HTTP::uri] [expr [string last "/" [HTTP::uri]] +1]] eq "k" } {
        if { [string is integer [string index [HTTP::uri] [expr [string last "/" [HTTP::uri]] +2]]] } {
             second character after "k" is a number - do something
        }
    }
}