RFR: 2637: Decoding emails from quoted-printable is broken

[Tim Bell]

On Fri, 12 Dec 2025 19:13:15 GMT, Erik Joelsson <erikj at openjdk.org> wrote:

> During my initial implementation of Mailman 3 support, I made an attempt at decoding quoted-printable encoded email bodies. That implementation isn't working that well. I only took 2 byte encoded UTF-8 characters into account, but we of course need to also handle 3 and 4 byte characters.
> 
> Instead of trying to do this with regular expressions, I bit the bullet and started working on a byte array, byte by byte. That actually makes it a lot simpler as we just need to translate each encoded triplet (`=XX`) at a time and then just convert the resulting byte array using Java's built in character set decoder.

Nice

Marked as reviewed by tbell (Reviewer).

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Marked as reviewed by tbell (Reviewer).

PR Review: https://git.openjdk.org/skara/pull/1747#pullrequestreview-3573602274
PR Review: https://git.openjdk.org/skara/pull/1747#pullrequestreview-3573603485