On 05/08/14 05:31, Egmont Koblinger wrote:
> I've added a patch to the upstream bugreport.
>
> boon, could you please test that?
Please excuse my ignorance but I don't know how to do that. Can you tell 
me what commands to type?

Is it in a repository somewhere or do I have to build from source?
> Could you please also let us know what application(s) produce these kinds of 
> escape sequences?
Pretty much any sensible application should do that (regarding CSI at 
least) because ... why transmit two characters (ESC [) instead of one 
character (0x9B)?

The only logical reason would be that the terminal or line does not 
support 8-bit characters but that distinction largely went away a long 
time ago. Since nearly all terminals today are emulated terminals and 
nearly all lines are somehow layered on IP (rather than being real 
serial lines like RS232) they should all allow 8-bit characters to be 
transmitted.

My memory could be faulty but it is my recollection that it was the 
VT200 series of terminals that introduced the C1 controls and that, 
according to WikiPedia, was in 1983(!), so any terminal emulator 
claiming to emulate a VT terminal has had 30 years to add support for C1 
controls. :-)

In my case the remote system is a mix of built-in programs (for example, 
the editor) and custom-written programs, most of which assume that a 
one-character CSI (0x9B) works.

Regards

Derek

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https://bugs.launchpad.net/bugs/1297051

Title:
  gnome-terminal doesn't recognise C1 controls

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