### Copyright 2014 Pixar
###  
###    Licensed under the Apache License, Version 2.0 (the "Apache License")
###    with the following modification; you may not use this file except in
###    compliance with the Apache License and the following modification to it:
###    Section 6. Trademarks. is deleted and replaced with:
###  
###    6. Trademarks. This License does not grant permission to use the trade
###       names, trademarks, service marks, or product names of the Licensor
###       and its affiliates, except as required to comply with Section 4(c) of
###       the License and to reproduce the content of the NOTICE file.
###  
###    You may obtain a copy of the Apache License at
###  
###        http://www.apache.org/licenses/LICENSE-2.0
###  
###    Unless required by applicable law or agreed to in writing, software
###    distributed under the Apache License with the above modification is
###    distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
###    KIND, either express or implied. See the Apache License for the specific
###    language governing permissions and limitations under the Apache License.
### 
###

###
class String
  
  ### Convert the strings "true" and "false" 
  ### (after stripping whitespace and downcasing)
  ### to TrueClass and FalseClass respectively
  ### 
  ### Return nil if any other string.
  ###
  ### @return [Boolean,nil] the boolean value
  ###
  def jss_to_bool
    case self.strip.downcase
      when "true" then return true
      when "false" then return false
      else return nil
    end # case
  end # to bool
end # class