Issue #6946 has been updated by Ben Hughes.

But changing it to:

<pre>
echo -en '$whatever="true"\nif !($whatever in ["true", "false"]) { /* ... */ }' 
| puppet
</pre>

works, sorry if I wasn't clear enough. By strings I meant there is no boolean 
type.

With regard to the documentation. Sorry you feel it's inadequate in this area. 

For the "in" syntax this is documented at 
http://docs.puppetlabs.com/guides/language_guide.html#the-in-syntax
----------------------------------------
Bug #6946: arrays cannot contain booleans
https://projects.puppetlabs.com/issues/6946

Author: Jacek Masiulaniec
Status: Accepted
Priority: Normal
Assignee: Ben Hughes
Category: 
Target version: 
Affected Puppet version: 2.6.4
Keywords: 
Branch: 


Problematic code:

  if !($whatever in [true, false]) {
          # ...
  }

The error:

  mac:~ jacekm$ echo 'if !($whatever in [true, false]) { /* ... */ }' | puppet
  'undef' from left operand of 'in' expression is not a string at line 1 on 
node mac.home
  mac:~ jacekm$ 

Nowhere in the documentation does it say that arrays cannot contain booleans.


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