Decode Quoted-printable strings in Ruby / Javascript

Question

I am using the Ruby mail library https://github.com/mikel/mail/

I am looking for a solution to decode Quoted-printable strings (using this library or natives Ruby function)

My Ruby version is ruby 1.9.2p294

Any solution in Javascript from client side is also good.

Any clue?

Did you mean to tag this encoding instead of encryption maybe? — Maarten Bodewes
– Maarten Bodewes, Commented Jul 19, 2012 at 11:51
I use the gmail gem. When I get emails, sometimes they are in "Content-Transfer-Encoding: quoted-printable", example: "=EC=95=88=EB=85=95=ED=95=98=EC=84=B8=EC=9A=94!" this is "Hello" in Korean = 안녕하세요 — Laurent
– Laurent, Commented Jul 20, 2012 at 3:12

Ωmega · Accepted Answer · 2012-07-20 21:28:36Z

2

You will be able to decode it by decodeURIComponent(str.replace(/=/g,'%'))

Test code in Javascript:

var input = 'Hello! in Korean is: =EC=95=88=EB=85=95=ED=95=98=EC=84=B8=EC=9A=94!';
var output = decodeURIComponent(input.replace(/=/g,'%'));

document.writeln(output);

Output:

Hello! in Korean is: 안녕하세요!

Try this code online here.

answered Jul 20, 2012 at 21:28

Ωmega

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