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Re: Erratum E2-43: invalid pattern

From: Sandy Gao <sandygao@ca.ibm.com>
Date: Wed, 30 Apr 2003 08:48:38 -0400
To: ht@cogsci.ed.ac.uk (Henry S. Thompson)
Cc: ht@inf.ed.ac.uk, www-xml-schema-comments@w3.org
Message-ID: <OF1A50279B.09EDA9AA-ON85256D18.004602F5@torolab.ibm.com>

>  <xs:pattern value="[-+]?[0-9]+"/>

I'm afraid it's still invalid. According to appendix F.1 of part 2, the
only thing that could possibly follow '[' is a "charGroup", but anything
starting with '-' is not a valid "charGroup".

Sandy Gao
Software Developer, IBM Canada
(1-905) 413-3255

                      k (Henry S.              To:       Sandy Gao/Toronto/IBM@IBMCA                                            
                      Thompson)                cc:       www-xml-schema-comments@w3.org                                         
                      Sent by:                 Subject:  Re: Erratum E2-43: invalid pattern                                     
                      04/30/2003 05:07                                                                                          

"Sandy Gao" <sandygao@ca.ibm.com> writes:

> In E2-43, a pattern was added to the "integer" type:
> <xs:pattern value='[+-]?[0-9]+'/>
> But according to another erratum E2-18, the above is not a valid regular
> expression, because the character '-' is not allowed. It should be
> <xs:pattern value='[+\-]?[0-9]+'/>

We changed this to

  <xs:pattern value="[-+]?[0-9]+"/>

at the last minute, possibly only in the diff'ed REC and not the
errata page -- is that OK, or do we still need the backslash?

  Henry S. Thompson, HCRC Language Technology Group, University of
                      Half-time member of W3C Team
     2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 131 650-4440
                 Fax: (44) 131 650-4587, e-mail: ht@cogsci.ed.ac.uk
                              URL: http://www.ltg.ed.ac.uk/~ht/
 [mail really from me _always_ has this .sig -- mail without it is forged
Received on Wednesday, 30 April 2003 08:48:51 UTC

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