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|
    base.class_eval <<-END
      if public_instance_methods.map { |m| m.to_s }.
                                 include? "#{color.downcase}"
        undef :#{color.downcase}
      end
      def #{color.downcase}
        color(:#{color.downcase})
      end
    END
    base.class_eval <<-END
      if public_instance_methods.map { |m| m.to_s }.
                                 include? "on_#{color.downcase}"
        undef :on_#{color.downcase}
      end
      def on_#{color.downcase}
        on(:#{color.downcase})
      end
    END
    HighLine::STYLES.each do |style|
      base.class_eval <<-END
        if public_instance_methods.map { |m| m.to_s }.
                                   include? "#{style.downcase}"
          undef :#{style.downcase}
        end
        def #{style.downcase}
          color(:#{style.downcase})
        end
      END
    end
  end

  base.class_eval do
    if public_instance_methods.map { |m| m.to_s }.include? "color"
      undef :color
    end
    if public_instance_methods.map { |m| m.to_s }.include? "foreground"
      undef :foreground
    end
    def color(*args)
      self.class.new(HighLine.color(self, *args))
    end
    alias_method :foreground, :color

    if public_instance_methods.map { |m| m.to_s }.include? "on"
      undef :on
    end
    def on(arg)
      color(('on_' + arg.to_s).to_sym)
    end

    if public_instance_methods.map { |m| m.to_s }.include? "uncolor"
      undef :uncolor
    end
    def uncolor
      self.class.new(HighLine.uncolor(self))
    end

    if public_instance_methods.map { |m| m.to_s }.include? "rgb"
      undef :rgb
    end
    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

    if public_instance_methods.map { |m| m.to_s }.include? "on_rgb"
      undef :on_rgb
    end
    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

    if public_instance_methods.map { |m| m.to_s }.include? "method_missing"
      undef :method_missing
    end
    # TODO Chain existing 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 72
def color(*args)
  self.class.new(HighLine.color(self, *args))
end
method_missing(method, *args, &blk) click to toggle source

TODO Chain existing #method_missing

# File lib/highline/string_extensions.rb, line 113
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 80
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 103
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 94
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 87
def uncolor
  self.class.new(HighLine.uncolor(self))
end