From: Luke-Jr (luke@dashjr.org)
Date: Mon Dec 06 2010 - 17:14:19 CST
On Monday, December 06, 2010 03:19:35 pm David Starner wrote:
> On Mon, Dec 6, 2010 at 5:19 AM, QSJN 4 UKR <qsjn4ukr@gmail.com> wrote:
> > There is writed in FAQ "Take the word "anglo-American" or the Italian
> > word "vederLa". Once you uppercase, lowercase or titlecase these
> > strings, you can't recover the original just by performing the reverse
> > operation". Why so stupid?
> > All we need for the reversibility of the case conversion operations is
> > two control characters.
>
> Two control characters that come from where? There are gigabytes of
> text that doesn't have it, and there's no way it's going to get added
> to the vast majority of new text. If you control your environment,
> there's a lot of control characters that could be repurposed for this,
> there's a lot of PUA, and there's good old fashioned ASCII markup. If
> you don't control your environment, it's hopeless; these types of
> things will never be marked in general purpose text.
My thought was they could be added by word processors when users select and
uppercase or such.
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