CODEWITHSUNDEEP
rubyencodingescaping
ciaoben
ciaoben

Reputation: 3338

How to clean a string from non valid characters in ruby?

I am parsing a file and I get this string:

"���email@locale"

How can I make sure to clean a string that has these invalid chars "�"?

Upvotes: 0

Views: 281

Answers (1)

Kimmo Lehto
Kimmo Lehto

Reputation: 6041

There are multiple ways to remove unwanted characters.

"���email@locale".chars.select(&:ascii_only?).join
=> "email@locale"
"���email@locale".gsub(/[^\p{Ascii}]/, '')
=> "email@locale"

This will break with domain names that include international characters, which is ok these days.

To allow ascii before the @ and anything after that, you can use something like this:

sanitized_email = "���email@locale"[/\p{Ascii}+?@[^\s]+/]
# now you can check if the email was valid at all:
raise "invalid email" if sanitized_email.nil?

Upvotes: 1

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