[gentoo-dev] Output of ANSI escape sequences in ebuilds

[Ulrich Mueller]

Some ebuilds output SGR control sequences (formerly known as ANSI escape
sequences) to the terminal, i.e., they do things like:

  echo -e "\033[1m${@}\033[0m"
  einfo "Fetching \e[1m${r}\e[22m ..."
  ewarn "\033[1;33m**************************************************\033[00m"
  echo -ne "\a"   # (not actually an ANSI escape sequence)

These prevent NOCOLOR in make.conf or emerge --color=n from working
correctly, and I guess they are also problematic from an accessibility
point of view.

Are there any objections against removing these sequences from strings?
AFAICS, they are used by less than ten packages, and one eclass.

Ulrich