4 ms·

Seems like it would be easy to make a program that strips color controls from stdin and pipes everything else to stdout

by brundolf 5y ago

black_knight 5y ago
I think Plan9port’s nobs command does this. It is my default pager when using acme or 9term (also from P9P).
eminence32 5y ago
This is generally the behavior I've seen on my everyday apps that support color in their output. Often they have a `--color auto|never|always` command line option, with "auto" being the default, which detects if the output is a TTY or some other interactive terminal
- brundolf 5y ago
  Auto-detecting is good, but I was suggesting a third-party program that just takes arbitrary input, strips the control characters, and produces the resulting output, in case the original app can't do what you need as a user
  - eminence32 5y ago
    Ah, yes. Sorry, I misread your comment. Yes, that is a good idea :)
  - MereInterest 5y ago
    This stack overflow post has a sed command that will strip them for you, so no need for a dedicated program. https://stackoverflow.com/a/18000433 https://stackoverflow.com/a/18000433
joveian 5y ago
I did a quick GitHub search and found two of them: https://github.com/kurtbuilds/no-ansi https://github.com/kurtbuilds/no-ansi Written in rust and ultimately uses vte from alacritty to write through a virtual terminal. Can be given a file on the command line. https://github.com/emptymonkey/dumb https://github.com/emptymonkey/dumb Written in Lex and just strips a number of specific escape sequences (written 9 years ago so likely doesn't include a few). Only stdin to stdout. Edit: And now I see the discussion below about nofun and the equivalent sed command that use regex. ... and reading more I see ansi2txt in colorized-logs (the one most likely to be packaged) that also effectively is a regex, although written out in C.

4 ms·

Seems like it would be easy to make a program that strips color controls from stdin and pipes everything else to stdout

by brundolf 5y ago

Seems like it would be easy to make a program that strips color controls from stdin and pipes everything else to stdout

black_knight 5y ago
I think Plan9port’s nobs command does this. It is my default pager when using acme or 9term (also from P9P).
eminence32 5y ago
This is generally the behavior I've seen on my everyday apps that support color in their output. Often they have a `--color auto|never|always` command line option, with "auto" being the default, which detects if the output is a TTY or some other interactive terminal
- brundolf 5y ago
  Auto-detecting is good, but I was suggesting a third-party program that just takes arbitrary input, strips the control characters, and produces the resulting output, in case the original app can't do what you need as a user
  - eminence32 5y ago
    Ah, yes. Sorry, I misread your comment. Yes, that is a good idea :)
  - MereInterest 5y ago
    This stack overflow post has a sed command that will strip them for you, so no need for a dedicated program. https://stackoverflow.com/a/18000433 https://stackoverflow.com/a/18000433
joveian 5y ago
I did a quick GitHub search and found two of them: https://github.com/kurtbuilds/no-ansi https://github.com/kurtbuilds/no-ansi Written in rust and ultimately uses vte from alacritty to write through a virtual terminal. Can be given a file on the command line. https://github.com/emptymonkey/dumb https://github.com/emptymonkey/dumb Written in Lex and just strips a number of specific escape sequences (written 9 years ago so likely doesn't include a few). Only stdin to stdout. Edit: And now I see the discussion below about nofun and the equivalent sed command that use regex. ... and reading more I see ansi2txt in colorized-logs (the one most likely to be packaged) that also effectively is a regex, although written out in C.