Preserving from the old std-text-wg@googlegroups.com mailing list.

-------- Forwarded Message --------
Subject: Re: Shift-JIS NEC/IBM discussion
Date: Tue, 27 Feb 2018 21:56:33 +0000
From: Mark Zeren <mzeren@vmware.com>
To: std-text-wg <std-text-wg@googlegroups.com>


rmf [1 day ago]

AFAIK there isn't a standard way to roundtrip this, not even a de facto one.

 

 

rmf [1 day ago]

Picking one way to do so seems overreaching as the user may have additional constraints we aren't aware of.

 

 

rmf [1 day ago]

The building blocks could be providing NEC-only and IBM-only variants as encoding forms, or providing a way to customize code mappings. (edited)

 

 

rmf [1 day ago]

Or both.

 

 

rmf [1 day ago]

True roundtripping here also seems to be of limited use, because you're unlikely to have mixed IBM and NEC characters. I think most of the time what you want is the ability to pick which of those two will Unicode->SJIS produce (edited)

 

 

rmf [1 day ago]

So you would do e.g. cp932 -> Unicode -> jisIBM or whatever that's called.

 

 

sdowney [22 hours ago]

Thanks for clarifying this! I hate when I know something that isn't true.

 

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