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#
# Author:: Jay Mundrawala(<jdm@chef.io>)
# Copyright:: Copyright (c) Chef Software Inc.
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
class Chef
module Mixin
module WideString
def wstring(str)
if str.nil? || str.encoding == Encoding::UTF_16LE
str
else
utf8_to_wide(str)
end
end
def utf8_to_wide(ustring)
# ensure it is actually UTF-8
# Ruby likes to mark binary data as ASCII-8BIT
ustring = (ustring + "").force_encoding("UTF-8")
# ensure we have the double-null termination Windows Wide likes
ustring += "\000\000" if ustring.length == 0 || ustring[-1].chr != "\000"
# encode it all as UTF-16LE AKA Windows Wide Character AKA Windows Unicode
ustring.encode("UTF-16LE")
end
def wide_to_utf8(wstring)
# ensure it is actually UTF-16LE
# Ruby likes to mark binary data as ASCII-8BIT
wstring = wstring.force_encoding("UTF-16LE")
# encode it all as UTF-8 and remove trailing CRLF and NULL characters
wstring.encode("UTF-8").strip
end
end
end
end
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