puppetlabs-stdlib/lib/puppet/parser/functions/camelcase.rb
Ryan McKern 42743614cb (MODULES-905) Add bool2str() and camelcase() for string manipulation
Python likes to have its constants Capitalized, and the capitalize
function only understands strings... so I shave a yak.

bool2str will convert a boolean to its equivalent string value,
and camelcase extends on uppercase & downcase to convert an underscore
delimited string into a camelcased string.
2014-05-13 15:46:40 -07:00

33 lines
892 B
Ruby

#
# camelcase.rb
#
module Puppet::Parser::Functions
newfunction(:camelcase, :type => :rvalue, :doc => <<-EOS
Converts the case of a string or all strings in an array to camel case.
EOS
) do |arguments|
raise(Puppet::ParseError, "camelcase(): Wrong number of arguments " +
"given (#{arguments.size} for 1)") if arguments.size < 1
value = arguments[0]
klass = value.class
unless [Array, String].include?(klass)
raise(Puppet::ParseError, 'camelcase(): Requires either ' +
'array or string to work with')
end
if value.is_a?(Array)
# Numbers in Puppet are often string-encoded which is troublesome ...
result = value.collect { |i| i.is_a?(String) ? i.split('_').map{|e| e.capitalize}.join : i }
else
result = value.split('_').map{|e| e.capitalize}.join
end
return result
end
end
# vim: set ts=2 sw=2 et :