From: Neil Soiffer <NeilS@dessci.com>

Date: Sat, 9 Mar 2013 10:00:55 -0800

Message-ID: <CAESRWkANn=p6uCzRYOt-+Gnh+cdDNn-VaizOTwy4CMC6H2ZJrQ@mail.gmail.com>

To: David Carlisle <davidc@nag.co.uk>

Cc: Frédéric WANG <fred.wang@free.fr>, "www-math@w3.org" <www-math@w3.org>

Date: Sat, 9 Mar 2013 10:00:55 -0800

Message-ID: <CAESRWkANn=p6uCzRYOt-+Gnh+cdDNn-VaizOTwy4CMC6H2ZJrQ@mail.gmail.com>

To: David Carlisle <davidc@nag.co.uk>

Cc: Frédéric WANG <fred.wang@free.fr>, "www-math@w3.org" <www-math@w3.org>

Those shouldn't be legal, so I like the change. Neil On Sat, Mar 9, 2013 at 8:47 AM, David Carlisle <davidc@nag.co.uk> wrote: > On 19/12/2012 12:27, Frédéric WANG wrote: > >> Hi Math WG, >> >> I notice that in the regular expression for "length" and >> "mpadded-length", you use the following definition of numbers: >> >> [0-9]*(\.[0-9]*)? >> >> which allows empty string as numbers and whitespace-only "length". >> I'm wondering if you could replace this regular expression by: >> >> [0-9]*(\.[0-9]*|[0-9]) >> >> That will make the schema a bit stricter and help me for a tool I'm >> developing. >> >> > Stephen pointed out off list that this would still allow a single "." > with no digit and suggested > > [0-9]*([0-9]\.?|\.[0-9])[0-9]* > > I have finally got round to updating this so the draft spec at > > http://www.w3.org/Math/draft-**spec/appendixa-d.html#parsing_**length<http://www.w3.org/Math/draft-spec/appendixa-d.html#parsing_length> > > and > > http://www.w3.org/Math/draft-**spec/appendixa-d.html#parsing_** > mpadded-length<http://www.w3.org/Math/draft-spec/appendixa-d.html#parsing_mpadded-length> > > shows this change. > > The RelaxNG and XSD schemas are also updated at > > http://www.w3.org/Math/**RelaxNG/ <http://www.w3.org/Math/RelaxNG/> > > and > > http://www.w3.org/Math/**XMLSchema/ <http://www.w3.org/Math/XMLSchema/> > > > These changes mean that the file > > <math xmlns="http://www.w3.org/1998/**Math/MathML<http://www.w3.org/1998/Math/MathML>" > > > <mo lspace=".pt"/> > <mo lspace="pt"/> > <mpadded width=".pt"><mo>+</mo></**mpadded> > <mpadded width="pt"><mo>+</mo></**mpadded> > </math> > > which was previously reported as valid is now reported as invalid, which > matches the prose description of the syntax of these attributes given in > the spec. > > David > > > >Received on Saturday, 9 March 2013 18:01:27 GMT

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