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# frozen_string_literal: true
#
# regexpescape.rb
#
module Puppet::Parser::Functions
newfunction(:regexpescape, type: :rvalue, doc: <<-DOC
@summary
Regexp escape a string or array of strings.
Requires either a single string or an array as an input.
@return [String]
A string of characters with metacharacters converted to their escaped form.
DOC
) do |arguments|
raise(Puppet::ParseError, "regexpescape(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.empty?
value = arguments[0]
raise(Puppet::ParseError, 'regexpescape(): Requires either array or string to work with') unless value.is_a?(Array) || value.is_a?(String)
result = if value.is_a?(Array)
# Numbers in Puppet are often string-encoded which is troublesome ...
value.map { |i| i.is_a?(String) ? Regexp.escape(i) : i }
else
Regexp.escape(value)
end
return result
end
end
# vim: set ts=2 sw=2 et :
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