Re: Combining large X overlay?

From: Anto'nio Martins-Tuva'lkin (antonio@tuvalkin.web.pt)
Date: Sun Oct 06 2002 - 12:14:17 EDT

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On 2002.09.30, 16:22, Doug Ewell <dewell@adelphia.net> wrote:

>> I was quite surprised when I noted that a "combining large X overlay"
>> was not included in the Combining Diacritical Marks block
>
> Can you show why it would be a *good* idea?

Sure can, as most of us could -- if only we hadn't better things to do.
Seriously, I am working in a encoding proposal (vexillological technical
symbols) and there's a handful of symbols which could be encoded as
"previously existing symbol" + "combining large X overlay". (These
symbols, BTW, are used in text, not only in pictorial, diagrammatic and
tabular presentations.)

> I can't think of any plain-text uses for a combining X overlay, though
> I can think of numerous purely iconic uses.

From the top of my head, I could refer hermeneutics and text revision in
general -- but that might be outside the plain text domain. (I'm quite
sure hermeneutics is best done with mark up, BTW.)

> The burden is on the proposer to show why a proposed character is
> necessary or would be useful. Saying "it seems like it should be
> there, because many similar combining-overlay characters are there"
> doesn't provide a persuasive case for X-overlay.

Of course. I was just commenting, not presenting a formal proposal.

>> Can anyone just step forward and propose U+20E4 for a "combining
>> large X overlay" and call it a day?
>
> Well, U+20E4 is already assigned to COMBINING ENCLOSING UPWARD
> POINTING TRIANGLE.

Hm, I'll have to update my UniBook database.

> But besides that, you would need to fill out the proposal form -- not
> simply mention it on the list -- and most importantly, you would need
> to show what plain-text requirement would be fulfilled by adding this
> character.

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