taskGNU Astronomy Utilities - Tasks: task #15138, Color command-line output


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task #15138: Color command-line output

Submitted by:  Mohammad Akhlaghi <makhlaghi>
Submitted on:  Mon 31 Dec 2018 01:09:37 AM UTC  
Should Start On:  Mon 31 Dec 2018 12:00:00 AM UTC Should be Finished on:  Mon 31 Dec 2018 12:00:00 AM UTC
Category:  All Gnuastro Priority:  5 - Normal
Item Group:  Enhancement Status:  Postponed
Privacy:  Public Percent Complete:  0%
Assigned to:  None Open/Closed:  Open
Effort:  0.00

Mon 31 Dec 2018 01:11:04 AM UTC, comment #1: 

Another situation to check (for removing color) is in more limited terminals like the internal Emacs terminal (when you run `M-x compile').

Mohammad Akhlaghi <makhlaghi>
Project Administrator
Mon 31 Dec 2018 01:09:37 AM UTC, original submission:  

In many scenarios of Gnuastro's programs, it can be really helpful if the output text (on the command-line) is color coded. For example the new `--verify' option to the Fits program.

Fortunately all modern terminal emulators (even on Windows), follow the same ANSI escape codes to define colors (summary, or full Wikipedia description.

So the job isn't too hard, it just needs some checks (to remove when the output isn't being directly printed on a terminal, for example being piped). We should look to see how `ls' (in GNU Coreutils) does it.

Mohammad Akhlaghi <makhlaghi>
Project Administrator


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