Blue Coat Systems Time Clock Proxy SG Manuale Utente

Chapter 1: Overview of Content Policy Language

31

Conditional Compilation

Occasionally, you might be required to maintain policy that can be applied to appliances running 
different versions of SGOS and requiring different CPL. CPL provides the following conditional 
compilation directive that tests the SGOS version (such as 2.1.06):

release.version= <version number range>

The range is a standard CPL range test: 

min..max

, where both minimum and maximum are optional.

The 

 and 

 can be 

MAJOR.MINOR.DOT.PATCH

, with 

, 

 and 

 optional. Therefore, 

rules containing grammar introduced in 2.1.07 can be protected with

#if release.version=2.1.07..

; guarded rules

...

#endif

while grammar introduced in 2.2 can be protected with: 

#if release.version=2.2.. 

; guarded rules

...

#endif