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Re: [idn] Why IDNA breaks copy-and-paste

To: idn@ops.ietf.org
Subject: Re: [idn] Why IDNA breaks copy-and-paste
From: "D. J. Bernstein" <djb@cr.yp.to>
Date: 15 Feb 2002 19:53:03 -0000
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References: <000f01c1b54d$0aac7c70$b4e21081@chalmers95a69n> <E16bKkw-0006D7-00@wisbech.cl.cam.ac.uk>

Markus Kuhn writes:
> xterm currently still converts tabs into spaces and drops
> combining characters if there are more than two per base character. It
> also drops most control characters, in particular it currently does not
> preserve SGR.

The ability to copy and paste tabs and font selections isn't relevant to
IDNs. However, the limit of two combining characters may interfere with
some languages. Why two?

---D. J. Bernstein, Associate Professor, Department of Mathematics,
Statistics, and Computer Science, University of Illinois at Chicago

References:
- RE: [idn] Why IDNA breaks copy-and-paste
  - From: "Kent Karlsson" <kentk@md.chalmers.se>
- Re: [idn] Why IDNA breaks copy-and-paste
  - From: Markus Kuhn <Markus.Kuhn@cl.cam.ac.uk>

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