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Carl_Brothers's avatar
Carl_Brothers
Icon for Employee rankEmployee
Mar 30, 2009

string map - Does it accept variables

Here is the case I am working around and hopefully it is just my ignorance of TCL constructs:

 

One SAP portal responds to many FQDNs and the FQDN determines to a small extent what the customer sees and controls how they log into the system.

 

When they log off the people using the "special" FQDNs are to be redirected to the original login page rather than the SAP page that requires NTLM auth.

 

Want this line to work, but it does not:

 

HTTP::header replace Location [string map -nocase {($uriLogoff) ($uriSSO)} [HTTP::header Location]]

 

HTTP::header replace Location [string map -nocase {"/actual/logoff/uri/that/requires/NTLM" "/long/path/to/login/page/without/NTLM"} [HTTP::header Location]]

 

Thanks in advance.
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  • hoolio's avatar
    hoolio
    Icon for Cirrostratus rankCirrostratus
    Mar 30, 2009
    Hi Carl,

     

     

    You can use variables with string map, but you cannot use them with curly braces. In TCL curly braces generally prevent variable substitution. They're nice to use to avoid having to escape metacharacters.

     

     

    If you want to allow variable expansion, you can use quotes or the list command:

     

     

    set updated_string [string map "$find $replace" $original_string]

     

     

    Aaron
  • Carl_Brothers's avatar
    Carl_Brothers
    Icon for Employee rankEmployee
    Mar 31, 2009
    That did it. Works like a champ!

     

    HTTP::header replace Location [string map -nocase [list $uriLogoff $uriSSO] [HTTP::header Location]]

     

    I was using the curly braces due to the examples containing them. I did not know of the exact limitations that they impart, so thanks for the clarification.

     

     

    Thank you for the help with making this work.

     

     

    Carl