Notepad++ 只是称为“ANSI”的编码，有没有人知道 Ruby 该怎么称呼它？
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The encoding that Notepad++ just calls "ANSI", does anyone know what to call it for Ruby?
提问by Owen_R
I have a bunch of .txt's that Notepad++ says (in its drop-down "Encoding" menu) are "ANSI".
我有一堆 .txt 的 Notepad++ 说（在它的下拉“编码”菜单中）是“ANSI”。
They have German characters in them, [??ü?], which display fine in Notepad++.
它们中有德语字符，[??ü?]，在 Notepad++ 中显示良好。
But they don't show up right in irb when I File.read 'this is a German text example.txt'them.
但是当我File.read 'this is a German text example.txt'他们时，他们并没有出现在 irb 中。
So does anyone know what argument I should give Encoding.default_external=?
那么有人知道我应该给出什么论点Encoding.default_external=吗？
(I'm assuming that'd be the solution, right?)
（我假设这就是解决方案，对吗？）
When 'utf-8'or 'cp850', it reads the "ANSI" file with "??ü?" in it as "\xE4\xF6\xFC\xDF"...
当'utf-8'或 时'cp850'，它读取带有“??ü?”的“ANSI”文件。在它作为“\xE4\xF6\xFC\xDF”...
(Please don't hesitate to mention apparently "obvious" things in your answers; I'm pretty much as newbish as you can be and still know just enough to ask this question.)
（请不要犹豫，在你的答案中提到明显“明显”的事情；我和你一样新手，但仍然知道足以提出这个问题。）
回答by J?rg W Mittag
What they mean is probably ISO/IEC 8859-1 (aka Latin-1), ISO-8859-1, ISO/IEC 8859-15 (aka Latin-9) or Windows-1252 (aka CP 1252). All 4 of them have the ?at position 0xE4.
它们的意思可能是 ISO/IEC 8859-1 (aka Latin-1)、ISO-8859-1、ISO/IEC 8859-15 (aka Latin-9) 或 Windows-1252 (aka CP 1252)。他们四个都有?at 位置0xE4。
回答by Love and peace - Joe Codeswell
I found the answer to this question on the Notepad++ Forum, answered in 2010 by CChris who seems to be authoritative.
我在 Notepad++ 论坛上找到了这个问题的答案，由 CChris 于 2010 年回答，似乎很权威。
Answer:
回答：
That will be the system code page for your computer (code page 0).
这将是您计算机的系统代码页（代码页 0）。
More Info:
更多信息：
Show your current code page.
显示您当前的代码页。
>help chcp
Displays or sets the active code page number.
CHCP [nnn]
nnn Specifies a code page number.
Type CHCP without a parameter to display the active code page number.
>chcp
Active code page: 437
Identifier .NET Name Additional information
437 IBM437 OEM United States
回答by Owen_R
I think it's 'cp1252', alias 'windows-1252'.
我认为它是“cp1252”，别名“windows-1252”。
After reading J?rg's answer, I went back through the Encodingpage on ruby-doc.org trying to find references to the specific encodings he mentioned, and that's when I spotted the Encodings.aliasesmethod.
在阅读了 J?rg 的回答后，我返回了ruby-doc.org 上的编码页面，试图找到对他提到的特定编码的引用，这就是我发现该Encodings.aliases方法的时候。
So I kludged up the method at the end of this answer.
所以我在这个答案的最后总结了这个方法。
Then I looked at the output in notepad++, viewing it as both 'ANSI' and utf-8, and compared that to the output in irb...
然后我查看了 notepad++ 中的输出，将其视为“ANSI”和 utf-8，并将其与 irb 中的输出进行了比较...
I could only find two places in the irb output where the utf-8 file was garbled in the exact same way it appeared in notepad++ when viewing it as 'ANSI', and those places were for cp1252 and cp1254.
我只能在 irb 输出中找到两个地方，其中 utf-8 文件的乱码方式与将其视为“ANSI”时出现在记事本++中的方式完全相同，而这些地方分别用于 cp1252 和 cp1254。
cp1252 is apparently my 'filesystem' encoding, so I'm going with that.
cp1252 显然是我的“文件系统”编码，所以我要这样做。
I wrote a script to make copies of all the files converted to utf-8's, trying both from 1252 and 1254.
我编写了一个脚本来复制所有转换为 utf-8 的文件，从 1252 和 1254 开始尝试。
utf-8 regexes seem to work with both sets of files so far.
到目前为止，utf-8 正则表达式似乎适用于两组文件。
Now I have to try to remember what I was actually trying to accomplishbefore I ran into all these encoding headaches. xD
现在，在遇到所有这些编码难题之前，我必须努力记住我实际尝试完成的工作。xD
def compare_encodings file1, file2
file1_probs = []
file2_probs = []
txt = File.open('encoding_test_output.txt','w')
Encoding.aliases.sort.each do |k,v|
Encoding.default_external=k
ename = [k.downcase, v.downcase].join " --- "
s = ""
begin
s << "#{File.read(file1)}"
rescue
s << "nope nope nope"
file1_probs << ename
end
s << "\t| #{ename} |\t"
begin
s << "#{File.read(file2)}"
rescue
s << "nope nope nope"
file2_probs << ename
end
Encoding.default_external= 'utf-8'
txt.puts s.center(58)
puts s.center(58)
end
puts
puts "file1, \"#{file1}\" exceptions from trying to convert to:\n\n"
puts file1_probs
puts
puts "file2, \"#{file2}\" exceptions from trying to convert to:\n\n"
puts file2_probs
txt.close
end
compare_encodings "utf-8.txt", "np++'ANSI'.txt"
