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 Sender: Mailing list for the LaTeX3 project <[log in to unmask]> Date: Tue, 20 May 2014 16:08:13 -0400 Reply-To: Mailing list for the LaTeX3 project <[log in to unmask]> Subject: Re: Unicode math MIME-Version: 1.0 Message-ID: <[log in to unmask]> In-Reply-To: <[log in to unmask]> Content-Type: text/plain; charset="US-ASCII" From: Barbara Beeton <[log in to unmask]> Parts/Attachments: text/plain (48 lines) On Tue, 20 May 2014, William F Hammond wrote:     On Tue, May 20, 2014 at 2:31 AM, David Carlisle <[log in to unmask]> wrote:     > For that use I'd think     > a variant declaration which would define \mathbf to flip the mathcodes     > into the U+1Dxxx block     > using the base font rather than define it as a swutch to new \fam     > (\mathgroup) and would be useful.     So long as one minds the gaps in U+1Dxxx (actually the several gaps for     which the unicode folk seem to have thought the characters were previously     defined in the U+21xx block), though maybe it's not that much of an issue     for \mathbf itself as opposed to \mathcal, \mathfrak, and \mathbb.     At least they were thoughtful enough to leave those slots empty. :-) but there's one pseudo-overlap: 1D48D (italic "ell") is often replaced or substituted by 2113 (the curly "ell") by meticulous authors. and it could be claimed that the power set, which was originally (in the unicode 2 manual) listed as a meaning for 2118, hasn't been properly accommodated, since the shape shown in version 2 was obviously the weierstrass p (now corrected), and the shape of the script P at 104AB is not suitable for use as the power set. but all the slots in the 2100-214F block have been filled in, so the power set has been effectively excluded. (i'll pursue that with the utc.)     Just seizing the opportunity to make everyone aware of the gaps. all is certainly not perfect. but whoever is creating the latex xupport for unicode fonts should "do the right thing" so the users don't have to be concerned in most cases. -- bb