Contents

require 'tempfile'

module Fontana

  class Fontforge

    def self.convert(input_ext, input_string, output_ext)
      input_file  = create_input_file(input_ext, input_string)
      output_file = setup_output_file output_ext
      run_conversion_command(input_file, output_file, output_ext.split('.').last)
      return_string = readback_output_file(output_file)
      cleanup(input_file)
      cleanup(output_file)
      return_string
    end

    def self.information(font_path)
      run_information_command(font_path).strip
    end


    private

      def self.cleanup(tempfile)
        tempfile.unlink
      end

      def self.create_input_file(ext, content, filename = 'fontana-fontforge-input')
        tempfile = Tempfile.new([filename, ext])
        tempfile.binmode
        tempfile.write content
        tempfile.close
        tempfile
      end

      def self.setup_output_file(extension, filename = 'fontana-fontforge-output')
        tempfile = Tempfile.new([filename, extension])
        tempfile.close
        tempfile
      end

      def self.readback_output_file(output_file)
        output = nil
        File.open(output_file.path, 'rb') { |file| output = file.read }
        output
      end

      def self.run_conversion_command(input_file, output_file, ext)
        puts "fontforge -script #{File.join(File.dirname(__FILE__), 'fontforge', "2#{ext}.pe")} #{input_file.path} #{output_file.path}"
        puts `fontforge -script #{File.join(File.dirname(__FILE__), 'fontforge', "2#{ext}.pe")} #{input_file.path} #{output_file.path}`
      end

      def self.run_information_command(input_file_path)
        puts "fontforge -script #{File.join(File.dirname(__FILE__), 'fontforge', "info.pe")} '#{input_file_path}'"
        `fontforge -script #{File.join(File.dirname(__FILE__), 'fontforge', "info.pe")} '#{input_file_path}'`
      end
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
fontana-0.0.1.rc1	lib/fontana/fontforge.rb