diff options
Diffstat (limited to 'puppet/modules/stdlib/lib/puppet/parser/functions/delete_at.rb')
m--------- | puppet/modules/stdlib | 0 | ||||
-rw-r--r-- | puppet/modules/stdlib/lib/puppet/parser/functions/delete_at.rb | 49 |
2 files changed, 49 insertions, 0 deletions
diff --git a/puppet/modules/stdlib b/puppet/modules/stdlib deleted file mode 160000 -Subproject 71123634744b9fe2ec7d6a3e38e9789fd84801e diff --git a/puppet/modules/stdlib/lib/puppet/parser/functions/delete_at.rb b/puppet/modules/stdlib/lib/puppet/parser/functions/delete_at.rb new file mode 100644 index 00000000..3eb4b537 --- /dev/null +++ b/puppet/modules/stdlib/lib/puppet/parser/functions/delete_at.rb @@ -0,0 +1,49 @@ +# +# delete_at.rb +# + +module Puppet::Parser::Functions + newfunction(:delete_at, :type => :rvalue, :doc => <<-EOS +Deletes a determined indexed value from an array. + +*Examples:* + + delete_at(['a','b','c'], 1) + +Would return: ['a','c'] + EOS + ) do |arguments| + + raise(Puppet::ParseError, "delete_at(): Wrong number of arguments " + + "given (#{arguments.size} for 2)") if arguments.size < 2 + + array = arguments[0] + + unless array.is_a?(Array) + raise(Puppet::ParseError, 'delete_at(): Requires array to work with') + end + + index = arguments[1] + + if index.is_a?(String) and not index.match(/^\d+$/) + raise(Puppet::ParseError, 'delete_at(): You must provide ' + + 'non-negative numeric index') + end + + result = array.clone + + # Numbers in Puppet are often string-encoded which is troublesome ... + index = index.to_i + + if index > result.size - 1 # First element is at index 0 is it not? + raise(Puppet::ParseError, 'delete_at(): Given index ' + + 'exceeds size of array given') + end + + result.delete_at(index) # We ignore the element that got deleted ... + + return result + end +end + +# vim: set ts=2 sw=2 et : |