sc-ansi¶ ↑

Handles every aspect (that I could think of) of dealing with ANSI escape sequences. You can produce ANSI codes easily enough:

require 'sc-ansi'                              # or just require 'ansi' if you prefer.

"a string!".red                                #=> a red string!
"a string!".blue                               #=> a blue string!
"a string!".red + "another string!".blue       #=> a red string and a blue string!

# or...
include ANSI

red  { "a string!" }                           #=> a red string!
blue { "a string!" }                           #=> a blue string!

red + "a string!" + blue + "another string!"   #=> a red string and a blue string!

The unique thing about sc-ansi is that it can also parse ANSI codes out of an input string. Useful if you’re writing your own console application and you want to interpret, say, the UP arrow for history recall.

include ANSI                                   # for the escape codes

string = move_up + " hello " + move_down       #=> "\e[A hello \e[B"
string.ansi_sequences                          #=> [ ANSI::CURSOR_UP, ANSI::CURSOR_DOWN ]

string.replace_ansi do |sequence|              # sequence is an instance of ANSI::Match
  case sequence
    when ANSI::CURSOR_UP                       # or ANSI::CUU
      "(up)"
    when ANSI::CURSOR_DOWN                     # or ANSI::CUD
      "(down)" 
  end
end
#=> "(up) hello (down)"

• Fork the project.

• Make your feature addition or bug fix.

• Add tests for it. This is important so I don’t break it in a future version unintentionally.

• Commit, do not mess with rakefile, version, or history. (if you want to have your own version, that is fine but bump version in a commit by itself I can ignore when I pull)

• Send me a pull request. Bonus points for topic branches.

Copyright © 2010 Colin MacKenzie IV. See LICENSE for details.