Fixing invalid UTF-8 in Ruby, revisited

When working with UTF-8-encoded text from an untrusted source like a web form, it’s a good idea to fix any invalid byte sequences at the first stage, to avoid breaking later processing steps that depend on valid input. For a long while, the Ruby idiom that I’ve been using and recommending to others is this: ic = Iconv.new('UTF-8//IGNORE', 'UTF-8') valid_string = ic.iconv(untrusted_string) IGNORE i

[chezou]

不正なUTF-8の文字列で起こるinvalid UTF-8を回避する方法。