summaryrefslogtreecommitdiff
path: root/lib/puppet/parser/functions/chomp.rb
blob: c99d139dabd8ea71f21d59b2e46bd6632d4d2dd9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
#
#  chomp.rb
#

module Puppet::Parser::Functions
  newfunction(:chomp, :type => :rvalue, :doc => <<-'EOS'
    Removes the record separator from the end of a string or an array of 
    strings, for example `hello\n` becomes `hello`.
    Requires a single string or array as an input.
    EOS
  ) do |arguments|

    raise(Puppet::ParseError, "chomp(): 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, 'chomp(): 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.chomp : i }
    else
      result = value.chomp
    end

    return result
  end
end

# vim: set ts=2 sw=2 et :