Puppet Function: swapcase

Defined in:
vendor_modules/stdlib/lib/puppet/parser/functions/swapcase.rb
Function type:
Ruby 3.x API

Summary

This function will swap the existing case of a string.

Overview

swapcase() ⇒ Any

Examples:

*Usage*


swapcase("aBcD")
Would result in: "AbCd"

Returns:

  • (Any) —

    string with uppercase alphabetic characters converted to lowercase and lowercase characters converted to uppercase



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# File 'vendor_modules/stdlib/lib/puppet/parser/functions/swapcase.rb', line 8

newfunction(:swapcase, type: :rvalue, doc: <<-DOC
  @summary
    This function will swap the existing case of a string.

  @return
    string with uppercase alphabetic characters converted to lowercase and lowercase characters converted to uppercase

  @example **Usage**

    swapcase("aBcD")
    Would result in: "AbCd"
  DOC
) do |arguments|
  raise(Puppet::ParseError, "swapcase(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.empty?

  value = arguments[0]

  unless value.is_a?(Array) || value.is_a?(String)
    raise(Puppet::ParseError, 'swapcase(): Requires either array or string to work with')
  end

  result = if value.is_a?(Array)
             # Numbers in Puppet are often string-encoded which is troublesome ...
             value.map { |i| i.is_a?(String) ? i.swapcase : i }
           else
             value.swapcase
           end

  return result
end