Konsole OSC + ST (231405)

[Egmont Koblinger]

Hi guys,

Friendly ping on this one.

While I see that you're pretty active in developing Konsole in other
ways, which is highly appreciated, let me remind you again that this
issue is not Konsole's private business only. This issue badly effects
interoperability, and thus the development of some terminal-based
applications too. Could you please address it with increased priority?

Thanks a lot,
Egmont

On Thu, Aug 15, 2019 at 9:02 PM Mariusz Glebocki <mglb at acos-1.net> wrote:
>
> Hi,
>
> WIP, a bit dirty and without automatic test, but seems to work:
> https://invent.kde.org/kde/konsole/merge_requests/22
>
> On Thu, Aug 15, 2019 at 4:47 PM <kurt.hindenburg at gmail.com> wrote:
> >
> > Hi, I was actually looking at this recently but got distracted. If no
> > one else picks it up, I'll try again.
> >
> >
> > Kurt
> >
> > On 8/15/19 6:01 AM, Egmont Koblinger wrote:
> > > Hi guys,
> > >
> > > I hope you don't mind me reaching out directly to you.
> > >
> > > I'd like to kindly ask you to address
> > > https://bugs.kde.org/show_bug.cgi?id=231405 in the near future.
> > > There's a pending patch attached to the bug.
> > >
> > > According to the standard, namely ECMA-48 § 8.3.89 and 8.3.143, an OSC
> > > sequence has to be terminated by ST, whose C0 representation is ESC
> > > Backslash. Konsole mishandles this one. (It handles correctly the
> > > nonstandard but common practice of BEL as terminator instead, which as
> > > per the XTerm FAQ, originates from XTerm.)
> > >
> > > As Bruno (cc) pointed out, this parser bug blocks him from emitting
> > > OSC sequences (OSC 8 hyperlink in particular, see konsole bug 379294)
> > > in a standard confirming way, knowing that terminals would at least
> > > silently ignore the sequence, without messing up the screen. Konsole
> > > (and derivatives, e.g. yakuake) are the only popular modern terminal
> > > emulators we're aware of that are problematic here, the other
> > > problematic emulators belong to the long tail (unmaintained ones, or
> > > ones with very small use base).
> > >
> > > This bugfix for Konsole would be an important step in allowing the
> > > whole ecosystem of terminals and terminal-based applications to move
> > > forward.
> > >
> > > thanks a lot,
> > > egmont