CODEWITHSUNDEEP
rubyunicode
Keith Bennett
Keith Bennett

Reputation: 4970

How to express any Unicode character as "\u????" format in Ruby?

I found some nice Unicode characters on a web site that I would like to use in my Ruby program, but they only include the visual character and not the numeric code I would use in the "\u...." form of expressing it. I would prefer to use the "\u1234" form when I specify it in the source code so that any font can display it. How can I derive this "\u..." value from the original character (e.g. "⬆")?

Upvotes: 1

Views: 1124

Answers (1)

Keith Bennett
Keith Bennett

Reputation: 4970

The numeric string to go after the "\u" can be computed in 2 steps:

1) call ord to get the numeric value of the character

2) call to_s(16) to convert that to a hex representation

[11] pry(main)> '⬆'.ord.to_s(16)
"2b06"
[12] pry(main)> "\u2b06"
"⬆"

Upvotes: 2

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