Module: Bones::Colors

Extended by:
Colors
Included in:
App::Command, App::FileManager, App::Main, Colors
Defined in:
lib/bones/colors.rb

Constant Summary collapse

COLORS = 
{
  # Embed in a String to clear all previous ANSI sequences.  This *MUST* be
  # done before the program exits!
  #
  :clear      => "\e[0m",
  :erase_line => "\e[K",
  :erase_char => "\e[P",
  :bold       => "\e[1m",
  :dark       => "\e[2m",
  :underline  => "\e[4m",
  :blink      => "\e[5m",
  :reverse    => "\e[7m",
  :concealed  => "\e[8m",

  # Terminal's foreground ANSI colors
  :black      => "\e[30m",
  :red        => "\e[31m",
  :green      => "\e[32m",
  :yellow     => "\e[33m",
  :blue       => "\e[34m",
  :magenta    => "\e[35m",
  :cyan       => "\e[36m",
  :white      => "\e[37m",

  # Terminal's background ANSI colors
  :on_black   => "\e[40m",
  :on_red     => "\e[41m",
  :on_green   => "\e[42m",
  :on_yellow  => "\e[43m",
  :on_blue    => "\e[44m",
  :on_magenta => "\e[45m",
  :on_cyan    => "\e[46m",
  :on_white   => "\e[47m"
}

Instance Method Summary collapse

Instance Method Details

#colorize(string, *colors) ⇒ Object

This method provides easy access to ANSI color sequences, without the user needing to remember to CLEAR at the end of each sequence. Just pass the string to color, followed by a list of colors you would like it to be affected by. The colors can be class constants, or symbols (:blue for BLUE, for example). A CLEAR will automatically be embedded to the end of the returned String.

This method returns the original string unchanged if colorize? is false.



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# File 'lib/bones/colors.rb', line 52

def colorize( string, *colors )
  return string unless colorize?

  colors.map! { |c|
    c.is_a?(Symbol) ? COLORS[c] : c
  }
  "#{colors.flatten.join}#{string}#{COLORS[:clear]}"
end

#colorize? ⇒ Boolean

Returns true if Bones is currently using color escapes.

Returns:

  • (Boolean) 


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# File 'lib/bones/colors.rb', line 63

def colorize?
  Bones.config.colorize
end