W3C home > Mailing lists > Public > www-math@w3.org > January 2001

Re: Typo in character entities tables?

From: David Carlisle <davidc@nag.co.uk>
Date: Thu, 11 Jan 2001 15:30:58 GMT
Message-Id: <200101111530.PAA02863@penguin.nag.co.uk>
To: jose.kahan@w3.org
CC: www-math@w3.org

> In examining the MathML Names tables ([1], [2], ...), I found that 
> sometimes the Unicode code for some entities have one or two 'x' characters 
> appended to them. For example:

> ...
> Do you use it to refer to the characters that were
> introduced in MathML 1.0 and excluded in 2.0?

more or less. There were more of these originally. They relate to 
characters in MathML 1 and/or the STIX submission that didn't make it
into the proposals for Unicode 3.1 or 3.2.

As those proposals became more definite most of the "problem" cases that
I'd flagged with an x were resolved or removed.
Thanks for pointing out the remaining "x" versions. The "x" should just
be deleted making the names aliases (this is already done in the DTD)
So for example although the table has
DoubleLongLeftArrow,  U021D0x,
The DTD currently defines &DoubleLongLeftArrow; as &#x21D0; (without the
trailing x). Which means that DoubleLongLeftArrow is the same as 
DoubleLeftArrow. So now that the Unicode proposals have stabalised and
(unfortunately) the long arrows are definitely not in, the "x" can be
dropped. Will do that.

> A minor type (it may have been intentional). The ISOLAT2 table[3] has
> a link to the bold table, in the header navigation:
> 	Next: bold
> but the bold table[4] doesn't have a previous link.

stylesheet error. These navigation links, like everything else, are XSL
generated. Will fix, thanks.


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Received on Thursday, 11 January 2001 10:31:16 UTC

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