Re: ignore dashes etc. (was Registration of new charset GB18030 (fwd))

                                                                                                               
                                                                                                               
                                                                                                               


And what harm does it do, to make the name matching case-insensitive --
especially since a great many implementations do that anyway?

Mark
___
mark.davis@us.ibm.com
IBM, MS 50-2/B11, 5600 Cottle Rd, SJ CA 95193
(408) 256-3148
fax: (408) 256-0799



                                                                                                                                 
                      Martin Duerst                                                                                              
                      <duerst@w3.org>          To:       Markus Scherer <markus.scherer@jtcsv.com>, charsets <ietf-              
                                                charsets@iana.org>                                                               
                      2002.07.18 18:55         cc:                                                                               
                                               Subject:  Re: ignore dashes etc. (was Registration of new charset  GB18030 (fwd)) 
                                                                                                                                 
                                                                                                                                 
                                                                                                                                 



At 09:50 02/07/18 -0700, Markus Scherer wrote:
>I second the various proposals to make the IANA charset matching rules
>more lenient.

I did not propose to make the matching rules more lenitent.
The only thing I suggested was that we check that we have no
conflicting registrations under such potential matching rules.
And I somewhat already regret it.

I don't think it's a good idea to change the matching rules.
We would get more and more on a slippery slope with bugwards
compatibility (Gresham's Law), and I don't see why we need to
go there when things such as e.g. XML go very clearly in the
other direction, based on very bad experience with bugwards
compatibility.

Regards,   Martin.


>To make a complete proposal:
>
>I propose that charset names should be recommended to be matched ignoring
>the following:
>- letter case differences (A=a, B=b, ... for A-Z and a-z)
>- dashes '-'
>- underscores '_'
>- spaces ' '
>
>For example, the following all match "gb18030":
>     "GB 18030" "gB-18030" "Gb_18030" "_ -g b-1_8 0-3_0 -_"
>
>I can live without the spaces in this recommendation, although I think it
>could be useful and does no harm.
>Spaces are not allowed in IANA charset names, so they can only occur in
>user-supplied names.
>
>markus
>
>Lars Marius Garshol wrote:
>
>>* Martin Duerst
>>| It may be possible to add a rule to the IANA registry that there
>>| should be no registrations that only differ in hyphens or
>>| underscores.
>>I think that would be a good idea. ...
>