From: Lennart Borgman <lennart.borgman@gmail.com>
To: herring@lanl.gov
Cc: rm@tuxteam.de, Ralf Mattes <rm@seid-online.de>, emacs-devel@gnu.org
Subject: Re: Converting a string to valid XHTML id?
Date: Thu, 2 Dec 2010 02:51:49 +0100 [thread overview]
Message-ID: <AANLkTikV4HGnQrc8iGUhN7fsyVsutH8Yn+FYM4ZfvcBc@mail.gmail.com> (raw)
In-Reply-To: <52305.130.55.118.19.1291252735.squirrel@webmail.lanl.gov>
On Thu, Dec 2, 2010 at 2:18 AM, Davis Herring <herring@lanl.gov> wrote:
>> I don't understand how your version is supposed to work. How can it be
>> unique if it does not keep track of if the id is already used? (Or did
>> you say that this case is not covered?)
>
> The requirement is that unique inputs map to unique outputs, yes? What I
> wrote does that, by making the string longer when it contains characters
> that can't be used directly. It's a standard thing: map the strings in
> A^n onto B^(n+e), where B is a smaller alphabet than A and e is the extra
> length required because each letter conveys less information. (In
> particular, it must be that |A|^n<=|B|^(n+e) for any such injective
> coding.) Like base64 or uuencode or quoted-printable.
Yes, but I can't see that you cover the case that the id converted id
is already used. Or do you do that?
next prev parent reply other threads:[~2010-12-02 1:51 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-29 1:43 Converting a string to valid XHTML id? Lennart Borgman
2010-11-29 18:08 ` Andreas Schwab
2010-11-29 18:18 ` Lennart Borgman
2010-11-29 18:33 ` Deniz Dogan
2010-11-29 18:39 ` Lennart Borgman
2010-11-30 14:50 ` Ralf Mattes
2010-12-01 14:53 ` Lennart Borgman
2010-12-01 15:34 ` Davis Herring
2010-12-01 15:58 ` rm
2010-12-01 22:32 ` Davis Herring
2010-12-01 23:12 ` Lennart Borgman
2010-12-01 23:16 ` Davis Herring
2010-12-01 23:31 ` Lennart Borgman
2010-12-02 0:12 ` Davis Herring
2010-12-02 0:44 ` Lennart Borgman
2010-12-02 1:18 ` Davis Herring
2010-12-02 1:51 ` Lennart Borgman [this message]
2010-12-01 15:51 ` Stefan Monnier
2010-12-01 19:51 ` Lennart Borgman
2010-12-02 2:37 ` Kevin Rodgers
2010-12-02 2:54 ` Lennart Borgman
2010-12-02 4:42 ` PJ Weisberg
2010-12-02 12:26 ` Lennart Borgman
2010-12-02 15:50 ` Lawrence Mitchell
2010-12-02 17:47 ` Lennart Borgman
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