Bidi paragraph direction in terminal emulators (was: Proposal for BiDi in terminal emulators)

Richard Wordingham via Unicode unicode at
Sun Feb 3 20:16:52 CST 2019

On Mon, 4 Feb 2019 00:36:23 +0100
Egmont Koblinger via Unicode <unicode at> wrote:

> Now, back to terminals.
> The smallest possible viable definition of a "paragraph" in terminal
> emulators is stuff between one newline and the next one.
> It would require a hell lot of work, redesigning (overcomplicating)
> plenty of basics of terminal emulation to be able to come up with
> smaller units, e.g. cells of a table – a concept that doesn't
> currently exist in this world –, I don't find any such approach
> feasible at all.

The concept appears to exist in the form of the fields of the
fifth edition of ECMA-48.  Have you digested this ambitious standard?
ECMA-48 has the concept of hyphenation and wrapping! (Well, in Appendix
C it does.  I haven't fully tied it in with the receipt of characters.)


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