how to disable colorized/grey output from iwctl commands

how to disable colorized/grey output from iwctl commands

[KeithG]

[-- Attachment #1: Type: text/plain, Size: 1785 bytes --]

I am trying to move to connman/iwd from netctl on a RPi. It currently has a
PHP based UI to display the info and allow connections, etc. Connmanctl
commands  respond with text (no control characters, no colorization) iwdctl
responds with text with control characters. If I use this command::
iwctl station wlan0 get-networks
I get a response which looks like clear txt in my linux terminal connected
by ssh, but it has control characters indicating which network is connected
and the signal strength stars are all present and are either full
brightness of grey depending on the signal. THis makes it challenging to
feed this into php to be displayed in a browser... Is there a hidden flag
to turn this off? Can this be added? If there are other suggestions on how
to best deal with this, I am soliciting advice... What I get is this in php:

sysCmd($str) ###  iwctl station wlan0 get-networks | sed -e '1,4d' | tr -s
' '
sysCmd() output: ### $data type = array
sysCmd() output: ###  ['0'] =>  Edventures psk ***ESC[1;30m*ESC[0m
sysCmd() output: ###  ['1'] =>  Oliwia2009 psk *ESC[1;30m***ESC[0m
sysCmd() output: ###  ['2'] =>  HouseStark01 psk *ESC[1;30m***ESC[0m
sysCmd() output: ###  ['3'] =>  ATTeHeTKI2 psk *ESC[1;30m***ESC[0m
sysCmd() output: ###  ['4'] =>  monterrey psk *ESC[1;30m***ESC[0m
sysCmd() output: ###  ['5'] =>  ATTxZIQ4wa psk *ESC[1;30m***ESC[0m
sysCmd() output: ###  ['6'] =>  Wemo.Mini.25B open *ESC[1;30m***ESC[0m
sysCmd() output: ###  ['7'] =>  xfinitywifi open *ESC[1;30m***ESC[0m
sysCmd() output: ###  ['8'] =>  ESC[1;30m> ESC[0mspg2 psk ****

I am trying to figure out how to use sed to remove the control characters,
but tit would be easier if I could just turn it off. Is there a flag? Could
one be added?

Thanks,

Gearhead

[-- Attachment #2: attachment.htm --]
[-- Type: text/html, Size: 2072 bytes --]

Re: how to disable colorized/grey output from iwctl commands

[Denis Kenzior]

[-- Attachment #1: Type: text/plain, Size: 1297 bytes --]

Hi Keith,

On 3/8/20 8:35 AM, KeithG wrote:
> I am trying to move to connman/iwd from netctl on a RPi. It currently 
> has a PHP based UI to display the info and allow connections, etc. 
> Connmanctl commands  respond with text (no control characters, no 
> colorization) iwdctl responds with text with control characters. If I 

connman client does not use special ANSI codes, iwctl does.

> use this command::
> iwctl station wlan0 get-networks
> I get a response which looks like clear txt in my linux terminal 
> connected by ssh, but it has control characters indicating which network 
> is connected and the signal strength stars are all present and are 
> either full brightness of grey depending on the signal. THis makes it 

It should be quite straightforward to filter the ANSI escape sequences 
out.  See https://en.wikipedia.org/wiki/ANSI_escape_code

> challenging to feed this into php to be displayed in a browser... Is 
> there a hidden flag to turn this off? Can this be added? If there are 
> other suggestions on how to best deal with this, I am soliciting 
> advice... What I get is this in php:

Right now there's no flag in iwctl to turn colorization off.  Should be 
straightforward to add though.  Patches are always welcome.

Regards,
-Denis