From: Juri Linkov <juri@linkov.net>
To: Lars Ingebrigtsen <larsi@gnus.org>
Cc: 38587@debbugs.gnu.org
Subject: bug#38587: base64-decode-region breaks encoding
Date: Sun, 15 Dec 2019 01:31:38 +0200 [thread overview]
Message-ID: <87v9qieb6t.fsf@mail.linkov.net> (raw)
In-Reply-To: <87pngtndhd.fsf@gnus.org> (Lars Ingebrigtsen's message of "Fri, 13 Dec 2019 03:52:46 +0100")
>> 0. emacs -Q
>> 1. insert a non-ASCII char, e.g. ä
>> 2. select the region around the char
>> 3. M-x base64-encode-region
>> 4. select the region around the encoded text
>> 5. M-x base64-decode-region
>>
>> results in a broken text. IOW, base64-encode-region and base64-decode-region
>> are not reversible, whereas their string counterparts are:
>>
>> (base64-decode-string (base64-encode-string "ä"))
>> => "\344"
>
> Well, that's not really reversible, either.
But when it's know that the source string was in UTF-8,
shouldn't it be reversible? What is needed for that?
Maybe an additional CODING arg for base64-decode-region?
Or it would be enough to use the coding system of the
output buffer?
next prev parent reply other threads:[~2019-12-14 23:31 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-12 23:55 bug#38587: base64-decode-region breaks encoding Juri Linkov
2019-12-13 2:52 ` Lars Ingebrigtsen
2019-12-13 7:12 ` Eli Zaretskii
2019-12-14 23:31 ` Juri Linkov [this message]
2019-12-15 8:56 ` Andreas Schwab
2019-12-15 22:40 ` Juri Linkov
2019-12-16 15:58 ` Eli Zaretskii
2019-12-16 21:51 ` Juri Linkov
2019-12-17 16:04 ` Eli Zaretskii
2019-12-17 23:10 ` Juri Linkov
2019-12-24 15:37 ` Lars Ingebrigtsen
2019-12-24 16:13 ` Lars Ingebrigtsen
2019-12-16 16:18 ` Andreas Schwab
2019-12-17 16:27 ` Lars Ingebrigtsen
2019-12-15 15:26 ` Eli Zaretskii
2019-12-15 22:41 ` Juri Linkov
2019-12-16 3:28 ` Eli Zaretskii
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