Ecma-48 proposed styling controls update updated & math expression representation proposal update

[Marius Spix]

Applications like Word or web browsers are able to preserve formatting
by using rich text formats like HTML or RTF in the clipboard. ECMA-48
proposed styling controls work on the plaintext layer, independenlty
from the application, as long the renderer (e. g. Uniscribe or HarfBuzz)
supports them. That would require the clipboard handler of the
operating system to be aware of these sequences.


Am Fri, 12 Jan 2024 22:08:19 +0000
schrieb Doug Ewell <doug at ewellic.org>:

> Eli Zaretskii wrote:
>
> > Sorry, I'm probably missing something, because I don't see the
> > relevance.  My point is that copy/paste through the clipboard uses
> > formats that are not plain text, and encode the styles and typefaces
> > by using methods that are not compatible with plain text.
>
> I think Marius will have to address what he meant, as you and I are
> talking past each other.
>
> If ECMA-48 markup is part of the plain-text stream, and it is copied
> from one app to another in a plain-text Clipboard, then all of the
> ECMA-48 sequences should survive the transit.
>
> >> Alternatively, why is the stated user-experience problem for
> >> ECMA-48 not a problem for Word?
> >
> > I thought I answered that?  Or what do you mean by "user
> > experience"?
>
> That question was semi-rhetorical, and was for Marius, who again will
> need to respond. I thought he was talking about the human user trying
> to select text to be copied, and inadvertently failing to select a
> starting or ending ECMA-48 sequence because they are not
> human-visible.
>
> > If pasting between applications, the answer is again clipboard
> > format that is not plain text.  If you copy plain text, the
> > formatting is lost.
>
> Wait: are we saying that ECMA-48 sequences like CSI 31m are plain
> text, or that they are not?
>
> --
> Doug Ewell, CC, ALB | Lakewood, CO, US | ewellic.org
>