在Go中解组ISO-8859-1 XML输入 [英] Unmarshal an ISO-8859-1 XML input in Go

问题描述

当您的XML输入未以UTF-8编码时，xml包的 Unmarshal 函数似乎需要 CharsetReader

解决方案

使用 go-charset 扩展@ anschel-schaffer-cohen建议和@ mjibson的评论
， / a>包可以使用这三行

  decoder：= xml.NewDecoder（reader）
 decoder.CharsetReader = charset.NewReader 
 err = decoder.Decode（& parsed）
  

实现所需的结果。只需记住通过调用

让 charset 知道它的数据文件在哪里

  charset.CharsetDir =... / src / code.google.com / p / go-charset / datafiles
  

$ b

>而不是上面的， charset.CharsetDir = 等，它是更明智的只是导入数据文件。它们被视为嵌入资源：

  import（
code.google.com/p/go-charset / charset
 _code.google.com/p/go-charset/data
 ... 
）
  

go install 只会做它的事情，这也避免了部署头痛（其中/如何获取数据文件相对于执行的应用程序？）。

使用import带下划线只是调用包的 init（） func which将所需的内容加载到内存中。

When your XML input isn't encoded in UTF-8, the Unmarshal function of the xml package seems to require a CharsetReader.

Where do you find such a thing ?

解决方案

Expanding on @anschel-schaffer-cohen suggestion and @mjibson's comment, using the go-charset package as mentioned above allows you to use these three lines

decoder := xml.NewDecoder(reader)
decoder.CharsetReader = charset.NewReader
err = decoder.Decode(&parsed)

to achieve the required result. just remember to let charset know where its data files are by calling

charset.CharsetDir = ".../src/code.google.com/p/go-charset/datafiles"

at some point when the app starts up.

EDIT

Instead of the above, charset.CharsetDir = etc. it's more sensible to just import the data files. they are treated as an embedded resource:

import (
    "code.google.com/p/go-charset/charset"
    _ "code.google.com/p/go-charset/data"
    ...
)

go install will just do its thing, this also avoids the deployment headache (where/how do I get data files relative to the executing app?).

using import with an underscore just calls the package's init() func which loads the required stuff into memory.

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