[NAnt-users] Increment number

[Daniell, Casey B]

Ok,

 

How do I increment the value of a property by one (1) in a nant script.

 

 

I want to read a file, get a value from that file (its sets a property), then increment it by one for future use.

 

I have tried:

 

  <!-- Get last build number Used -->
    <xmlpeek file="c:/archive/foo.xml"
             xpath="/IntegrationResult/Label"
             property="last.build"/>
             
  <property name="this.build" value="${last.build} + 1"/>

 

OUTPUT== [echo] THIS BUILD TAG IS 75 + 1

 

Basically, I know I need to dereference the property add the integer 1 to it, then save it to the new value. How do I go about doing this?

 

Casey