Ruby / Rails：如何删除字符串中的所有unicode？
[英]Ruby/Rails : How to remove all the unicode in a string?
问题描述
I have a lot of records in a legacy database and I need to export that data into a CSV using the ISO-1889-1 format because there are spanish characters. 
我在旧版数据库中有很多记录，并且由于存在西班牙语字符，因此需要使用ISO-1889-1格式将该数据导出为CSV。
However, when converting it to utf-8 to iso, it keeps throwing errors of not being able to convert certain characters. 但是，将其从utf-8转换为iso时，会一直抛出无法转换某些字符的错误。 ex: 例如：
Encoding::UndefinedConversionError - U+2026 from UTF-8 to ISO-8859-1
this happens at this line in my controller: 这发生在我的控制器的这一行：
send_data(data.encode("iso-8859-1"), filename: "books_data_#{date}.csv", type: 'text/csv; charset=iso-8859-1; header=present')
To fix this individual issue I just did string.gsub!("…", "") . 为了解决这个单独的问题，我只做了string.gsub!("…", "") 。 Is there a more universal way to just remove all unicode in a ruby string? 有没有更通用的方法来删除ruby字符串中的所有unicode？ Doing it by hand for each one that appears is not as complete, ugly, and hard to maintain if new unicode characters arise. 如果出现新的unicode字符，则对出现的每个字符进行手工操作并不那么完整，丑陋且难以维护。 Just wondering. 就是想。
1 个解决方案
解决方案1
1 2014-01-09 16:04:22
Are you looking for String::encode ? 您在寻找String :: encode吗？
irb(main):011:0> "Здравствуйте Stack Overflow!".encode("iso-8859-1", undef: :replace, replace: "")
=> " Stack Overflow!"
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