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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".

Thanks,
Sandy Gao
Software Developer, IBM Canada
(1-905) 413-3255
sandygao@ca.ibm.com



                                                                                                                                
                      ht@cogsci.ed.ac.u                                                                                         
                      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                                     
                      ht@inf.ed.ac.uk                                                                                           
                                                                                                                                
                                                                                                                                
                      04/30/2003 05:07                                                                                          
                      AM                                                                                                        
                                                                                                                                
                                                                                                                                



"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?

ht
--
  Henry S. Thompson, HCRC Language Technology Group, University of
Edinburgh
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                 Fax: (44) 131 650-4587, e-mail: ht@cogsci.ed.ac.uk
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Received on Wednesday, 30 April 2003 08:48:51 UTC

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