module HighLine::StringExtensions

Public Class Methods

included(base) click to toggle source
# File lib/highline/string_extensions.rb, line 32
def self.included(base)
  HighLine::COLORS.each do |color|
    color = color.downcase
    base.class_eval <<-END
      undef :#{color} if method_defined? :#{color}
      def #{color}
        color(:#{color})
      end
    END

    base.class_eval <<-END
      undef :on_#{color} if method_defined? :on_#{color}
      def on_#{color}
        on(:#{color})
      end
    END
    HighLine::STYLES.each do |style|
      style = style.downcase
      base.class_eval <<-END
        undef :#{style} if method_defined? :#{style}
        def #{style}
          color(:#{style})
        end
      END
    end
  end

  base.class_eval do
    undef :color if method_defined? :color
    undef :foreground if method_defined? :foreground
    def color(*args)
      self.class.new(HighLine.color(self, *args))
    end
    alias_method :foreground, :color

    undef :on if method_defined? :on
    def on(arg)
      color(('on_' + arg.to_s).to_sym)
    end

    undef :uncolor if method_defined? :uncolor
    def uncolor
      self.class.new(HighLine.uncolor(self))
    end

    undef :rgb if method_defined? :rgb
    def rgb(*colors)
      color_code = colors.map{|color| color.is_a?(Numeric) ? '%02x'%color : color.to_s}.join
      raise "Bad RGB color #{colors.inspect}" unless color_code =~ /^[a-fA-F0-9]{6}/
      color("rgb_#{color_code}".to_sym)
    end

    undef :on_rgb if method_defined? :on_rgb
    def on_rgb(*colors)
      color_code = colors.map{|color| color.is_a?(Numeric) ? '%02x'%color : color.to_s}.join
      raise "Bad RGB color #{colors.inspect}" unless color_code =~ /^[a-fA-F0-9]{6}/
      color("on_rgb_#{color_code}".to_sym)
    end

    # TODO Chain existing method_missing
    undef :method_missing if method_defined? :method_missing
    def method_missing(method, *args, &blk)
      if method.to_s =~ /^(on_)?rgb_([0-9a-fA-F]{6})$/
        color(method)
      else
        raise NoMethodError, "undefined method `#{method}' for #<#{self.class}:#{'%#x'%self.object_id}>"
      end
    end
  end
end

Public Instance Methods

color(*args) click to toggle source
# File lib/highline/string_extensions.rb, line 62
def color(*args)
  self.class.new(HighLine.color(self, *args))
end
method_missing(method, *args, &blk) click to toggle source
# File lib/highline/string_extensions.rb, line 93
def method_missing(method, *args, &blk)
  if method.to_s =~ /^(on_)?rgb_([0-9a-fA-F]{6})$/
    color(method)
  else
    raise NoMethodError, "undefined method `#{method}' for #<#{self.class}:#{'%#x'%self.object_id}>"
  end
end
on(arg) click to toggle source
# File lib/highline/string_extensions.rb, line 68
def on(arg)
  color(('on_' + arg.to_s).to_sym)
end
on_rgb(*colors) click to toggle source
# File lib/highline/string_extensions.rb, line 85
def on_rgb(*colors)
  color_code = colors.map{|color| color.is_a?(Numeric) ? '%02x'%color : color.to_s}.join
  raise "Bad RGB color #{colors.inspect}" unless color_code =~ /^[a-fA-F0-9]{6}/
  color("on_rgb_#{color_code}".to_sym)
end
rgb(*colors) click to toggle source
# File lib/highline/string_extensions.rb, line 78
def rgb(*colors)
  color_code = colors.map{|color| color.is_a?(Numeric) ? '%02x'%color : color.to_s}.join
  raise "Bad RGB color #{colors.inspect}" unless color_code =~ /^[a-fA-F0-9]{6}/
  color("rgb_#{color_code}".to_sym)
end
uncolor() click to toggle source
# File lib/highline/string_extensions.rb, line 73
def uncolor
  self.class.new(HighLine.uncolor(self))
end