Citrix Systems Network Router 9.2 User Manual

In the preceding examples, the contains operator permits a partial match and 
the eq operator looks for an exact match.

Other operations are available to format the string before evaluating it, for 
example, to strip out quotes and white spaces, to convert the string to all 
lowercase, or to concatenate strings. 

Complex operations are available to perform matching based on patterns 

or to convert one type of text format to another type. For more information, see 

.

You can apply various operators to combine text prefixes or expressions. For 
example, the following expression concatenates the returned values of each 
prefix:

http.req.hostname + http.req.url

Following expression is an example of forming a compound text expression that 
uses a logical AND. In this example, both components of the expression must be 
TRUE for a request to match the expression:

http.req.method.eq(post) && http.req.body(1024).

startswith("destination=")

For more information on operators for compounding, see 

.

The primary categories of text expressions that you can configure are:

•

Information in HTTP headers, HTTP URLs, and the POST body in HTTP 
requests.

For more information, see 

.

•

Information regarding a VPN or a clientless VPN.

For more information, see 

•

TCP payload information.