Scan - Making string manipulation efficient

One of the many things that makes iRules so powerful is the ability to inspect data and break it up into custom variables. You can store whatever information you need in your desired format and put i...
Published Apr 24, 2008
Version 1.0
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Al_Carandang_11's avatar
Al_Carandang_11
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May 20, 2008
So would it be safe to say that

 

 

scan [HTTP::host] %s.%s.%s prefix host suffix

 

 

is more efficient than

 

 

set prefix [getfield [HTTP::host] "." 1]

 

set host [getfield [HTTP::host] "." 2]

 

set suffix [getfield [HTTP::host] "." 3]

 

 

?

 

 

Or are the gains negligible?