bug#35129: Unsupported escape sequences for progress in shell

[Michael Albinus]

Juri Linkov <juri@linkov.net> writes:

Hi Juri,

>> Looks interesting. However, we have `progress-reporter'. The code from
>> above shall be made available via this.
>
> I'm not sure if we can provide min-value/max-value for
> make-progress-reporter.  If not, then it uses spinning/pulsing.
> It seems progress-reporter doesn't support arbitrary strings
> such as that come from underlying process like ^[7Progress: [ 0%]^[8

progress-reporter should be improved to accept also strings like "45%"
to be displayed literally.

>> This would also improve Tramp; there are requests to integrate the
>> progress reporter from external commands.
>
> Could you show an example of a progress reporter from an external command.
> Do they use arbitrary strings?

Some scp or pscp versions do it. For example:

--8<---------------cut here---------------start------------->8---
$ pscp -v localhost:/net/ford/Multimedia/Eigene\ 
Videos/Videos/20150829_145255.mp4 /tmp/foo
[...]
foo                       | 203369 kB | 5810.6 kB/s | ETA: 00:00:00 | 84%
--8<---------------cut here---------------end--------------->8---

Best regards, Michael.