1

我有这段代码,使用 Ruby 2.3.1 运行:

str = "麦克风访问被拒绝"
puts str.encoding #=> "UTF-8"

conv = Encoding::Converter.new("UTF-8", "UTF-16LE")
str = conv.convert(str)
puts str.encoding #=> "UTF-16LE"

Zlib::GzipWriter.open("test.gz", encoding: "UTF-16LE") do |gz|
  puts str.encoding #=> "UTF-16LE"
  gz.write(str)
end

Zlib::GzipReader.open("test.gz") do |gz|
  puts gz.read.encoding #=> ASCII-8BIT
  gz.read
end

并返回 [无效编码]

如何以将编码保持为 UTF-16LE 的方式保存文件?

4

1 回答 1

3

就我而言(并由文档确认),您不能将选项哈希发送到.open-function。您必须首先使用创建一个对象Zlib::GzipWriter.new(io, level = nil, strategy = nil, options = {}),如Docs中所述。

require 'zlib'

str = "麦克风访问被拒绝"

conv = Encoding::Converter.new("UTF-8", "UTF-16LE")
str = conv.convert(str)
p str

File.open('test.gz', 'w') do |f|
  gz = Zlib::GzipWriter.new(f, nil, nil, encoding: 'UTF-16LE' )
  gz.write str
  gz.close
end

File.open('test.gz') do |f|
  gz = Zlib::GzipReader.new(f, { encoding: 'UTF-16LE' })
  p gz.read
  gz.close
end

此代码输出:

\u9EA6\u514B\u98CE\u8BBF\u95EE\u88AB\u62D2\u7EDD

\u9EA6\u514B\u98CE\u8BBF\u95EE\u88AB\u62D2\u7EDD

(更新 - 修复了整个示例,工作)

于 2017-02-09T12:26:48.623 回答