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#
# bool2str.rb
#
module Puppet::Parser::Functions
newfunction(:bool2str, :type => :rvalue, :doc => <<-EOS
Converts a boolean to a string using optionally supplied arguments. The
optional second and third arguments represent what true and false will be
converted to respectively. If only one argument is given, it will be
converted from a boolean to a string containing 'true' or 'false'.
*Examples:*
bool2str(true) => 'true'
bool2str(true, 'yes', 'no') => 'yes'
bool2str(false, 't', 'f') => 'f'
Requires a single boolean as an input.
EOS
) do |arguments|
unless arguments.size == 1 or arguments.size == 3
raise(Puppet::ParseError, "bool2str(): Wrong number of arguments " +
"given (#{arguments.size} for 3)")
end
value = arguments[0]
true_string = arguments[1] || 'true'
false_string = arguments[2] || 'false'
klass = value.class
# We can have either true or false, and nothing else
unless [FalseClass, TrueClass].include?(klass)
raise(Puppet::ParseError, 'bool2str(): Requires a boolean to work with')
end
unless [true_string, false_string].all?{|x| x.kind_of?(String)}
raise(Puppet::ParseError, "bool2str(): Requires strings to convert to" )
end
return value ? true_string : false_string
end
end
# vim: set ts=2 sw=2 et :
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