46 lines
1.2 KiB
Ruby
46 lines
1.2 KiB
Ruby
#
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# delete_regex.rb
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#
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module Puppet::Parser::Functions
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newfunction(:delete_regex, :type => :rvalue, :doc => <<-EOS
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deletes all instances of a given element that match a regular expression
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from an array or key from a hash. Multiple regular expressions are assumed
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to be matched as an OR.
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*Examples:*
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delete_regex(['a','b','c','b'], 'b')
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Would return: ['a','c']
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delete_regex(['a','b','c','b'], ['b', 'c'])
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Would return: ['a']
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delete_regex({'a'=>1,'b'=>2,'c'=>3}, 'b')
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Would return: {'a'=>1,'c'=>3}
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delete_regex({'a'=>1,'b'=>2,'c'=>3}, '^a$')
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Would return: {'b'=>2,'c'=>3}
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EOS
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) do |arguments|
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raise(Puppet::ParseError, "delete_regex(): Wrong number of arguments "+
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"given #{arguments.size} for 2") unless arguments.size == 2
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collection = arguments[0].dup
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Array(arguments[1]).each do |item|
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case collection
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when Array, Hash, String
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collection.reject! { |coll_item| (coll_item =~ %r{\b#{item}\b}) }
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else
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raise(TypeError, "delete_regex(): First argument must be an Array, " +
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"Hash, or String. Given an argument of class #{collection.class}.")
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end
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end
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collection
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end
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end
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# vim: set ts=2 sw=2 et :
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