ruby `encode'： "\xC3" 从 ASCII8BIT 到 UTF8 (Encoding：：UndefinedConversionError)

发布于04月30日

tvdb中的汉尼拔剧集中有一些奇怪的角色.

例如:

Œuf

于是鲁比吐了出来:

./manifesto.rb:19:in `encode': "\xC3" from ASCII-8BIT to UTF-8 (Encoding::UndefinedConversionError)
    from ./manifesto.rb:19:in `to_json'
    from ./manifesto.rb:19:in `<main>'

第19行是:

puts @tree.to_json

有没有办法处理这些非utf字符？我宁愿不替换它们，而是转换它们？还是忽略它们？我不知道，谢谢你的帮助.

奇怪的是，通过cron，脚本可以正常工作.手动运行会产生错误.

推荐答案

It seems you should use another encoding for the object. You should set the proper codepage to the variable @tree, for instance, using iso-8859-1 instead of ascii-8bit by using @tree.force_encoding('ISO-8859-1'). Because ASCII-8BIT is used just for binary files.

要查找ruby的当前外部编码，请发布:

Encoding.default_external

If sudo solves the problem, the problem was in default codepage (encoding), so to resolve it you have to set the proper default codepage (encoding), by either:

In ruby to change encoding to utf-8 or another proper one, do as follows:
```
Encoding.default_external = Encoding::UTF_8
```
In bash, grep current valid set up:
```
$ sudo env|grep UTF-8
LC_ALL=ru_RU.UTF-8
LANG=ru_RU.UTF-8
```
然后以类似的方式将其正确设置为.bashrc，但不能完全使用ru_RU语言，例如:
```
export LC_ALL=ru_RU.UTF-8
export LANG=ru_RU.UTF-8
```