From: "José A. Romero L." <escherdragon@gmail.com>
To: 6252@debbugs.gnu.org
Subject: bug#6252: Emacs does not implement URL (aka "percent") decoding correctly.
Date: Sun, 23 May 2010 01:46:54 +0200 [thread overview]
Message-ID: <AANLkTilLXmD0oCE1in39yqnuAEq6PkvJmyC1a_0eToab@mail.gmail.com> (raw)
On May 18, 20:14, Xah Lee <xah...@gmail.com> wrote:
> is there emacs lisp function that decode the url percent encoding?
> e.g.http://en.wikipedia.org/wiki/Sylvester%E2%80%93Gallai_theorem
> should become
> http://en.wikipedia.org/wiki/Sylvester–Gallai_theorem
> that's a EN DASH (unicode 8211, #o20023, #x2013).
> I know there's a
> (require 'gnus-util)
> gnus-url-unhex-string
> but that just unhex, and generate gibberish if the url contain unicode
> chars.
(...)
Seems that RFC 3986 has not been implemented correctly in Emacs. IMHO
that is an important hole you have found there. The standard requires
that all unreserved characters be encoded/decoded as UTF8 bytes. Even
though the encoding part looks OK (in url-util.el), the decoding does
not go that last mile to interpret the decoded bytes as UTF-8.
Until a proper implementation is done, I guess you could work around
the problem with something like this:
(decode-coding-string
(apply 'unibyte-string
(string-to-list
(url-unhex-string "http://en.wikipedia.org/wiki/Sylvester
%E2%80%93Gallai_theorem")))
'utf-8)
(yes, it's ugly as hell but hey, it's free ;])
I've just sent this very message as a bug report to the Emacs team.
Cheers,
--
José A. Romero L.
escherdragon@gmail.com
"We who cut mere stones must always be envisioning cathedrals."
(Quarry worker's creed)
next reply other threads:[~2010-05-22 23:46 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-22 23:46 José A. Romero L. [this message]
2010-05-24 3:33 ` bug#6252: Emacs does not implement URL (aka "percent") decoding correctly YAMAMOTO Mitsuharu
[not found] ` <AANLkTilUODUArElMVd6FzgL08u1TmCVw2kar1Gf9z1Z9@mail.gmail.com>
2010-05-25 8:56 ` bug#6252: Fwd: " José A. Romero L.
2011-09-21 20:17 ` Lars Magne Ingebrigtsen
[not found] ` <CAJ_WfoU_JAjf-cTruu3fL1OO5fSMRHsjmnB=-aUK6h6RM7e8AA@mail.gmail.com>
2011-09-22 7:38 ` Lars Magne Ingebrigtsen
[not found] ` <CAJ_WfoV04Bis9msxHYLdu5VTONZ7hO_LsKy097MqfnmLf4kfjQ@mail.gmail.com>
2011-09-23 8:34 ` Lars Magne Ingebrigtsen
2011-09-23 11:12 ` José A. Romero L.
2011-09-25 22:16 ` Lars Magne Ingebrigtsen
2011-09-25 22:25 ` José A. Romero L.
2012-04-10 2:14 ` Lars Magne Ingebrigtsen
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