Module: Rscons::Ansi

Defined in:
lib/rscons/ansi.rb

Overview

Module to contain logic to write ANSI color escape codes.

Class Method Summary collapse

Class Method Details

.write(io, *message) ⇒ void

This method returns an undefined value.

Write a message to an IO with ANSI escape codes.

Parameters:

  • io (IO) —

    The IO to write to.

  • message (Array<String, Symbol>) —

    Strings to be printed, with Symbols representing ANSI escape codes.



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# File 'lib/rscons/ansi.rb', line 14

def write(io, *message)
  do_color = Rscons.do_ansi_color
  if do_color.nil?
    do_color = do_ansi?(io)
  end
  out = ""
  message.each do |m|
    if m.is_a?(String)
      out += m
    elsif do_color
      case m
      when :red
        out += "\e[0;31m"
      when :cyan
        out += "\e[0;36m"
      when :reset
        out += "\e[0m"
      end
    end
  end
  io.write(out)
end