From: Chris Jacobs (chris.jacobs@freeler.nl)
Date: Sun Oct 19 2003 - 20:34:27 CST

----- Original Message -----
From: "Doug Ewell" <dewell@adelphia.net>
To: "Unicode Mailing List" <unicode@unicode.org>
Cc: <jameskass@att.net>; "Tom Gewecke" <tom@bluesky.org>
Sent: Sunday, October 19, 2003 8:32 PM
Subject: Re: Klingons and their allies - Beyond 17 planes

> <jameskass at att dot net> wrote:
> > In addition to the problem of the OS substituting improper glyphs
> > from inappropriate fonts unexpectedly, there's often a problem with
> > line breaking.
> >
> > Since the PUA has no properties, some applications seem to ignore the
> > space character and break lines arbitrarily, splitting words in the
> > middle.
> That's exactly what happens in my sample pages. I didn't think it was
> because the PUA had "no" properties so much as "default" properties,
> which (as Thomas Chan indicated) might be Han-based or Han-influenced.
> You can always switch to a font that will display glyphs for your PUA
> characters, but it's harder to adapt a rendering engine to observe PUA
> character properties.

One problem is that there seems to be no way in plaintext unicode to specify
who is in charge of a particular interpretation of the PUA.

As I understand the position of the designers of Unicode they definitely
don't want to be in charge of this and want to let the users of the PUA
fight it out among themselves.

Nevertheless I think if Unicode don't want to decide how the PUA is to be
interpreted it should be at the very least provide a mechanism by which an
user of the PUA can specify which specification he prefers.

I plan to propose such a mechanism:

I want to propose a char with the following properties:

Scalar Value: U+E0002

This starts a PUA interpretation selector tag.
The content of the tag is a Font family name.
For all PUA chars between this tag and the corresponding Cancel tag the
copyright holder of the font is the sole authority about how the PUA should
be interpreted.

Any comments?

> In any case, I am absolutely certain :-) :-) that the arbitrary mid-word
> line breaking is what has discouraged would-be readers from pointing out
> the typo (since fixed) in my transcription of a Dorothy Parker poem:
> http://users.adelphia.net/~dewell/sopp-ew.html
> -Doug Ewell
> Fullerton, California
> http://users.adelphia.net/~dewell/

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