Class: RailroadDiagrams::Command

Inherits:
Object
  • Object
show all
Defined in:
lib/railroad_diagrams/command.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Command

Returns a new instance of Command.



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# File 'lib/railroad_diagrams/command.rb', line 7

def initialize
  @format = 'svg'
end

Instance Method Details

#add(name, diagram) ⇒ Object 



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# File 'lib/railroad_diagrams/command.rb', line 65

def add(name, diagram)
  return unless @test_list.empty? || @test_list.include?(name)

  puts "\n<h1>#{RailroadDiagrams.escape_html(name)}</h1>"

  case @format
  when 'svg'
    diagram.write_svg($stdout.method(:write))
  when 'standalone'
    diagram.write_standalone($stdout.method(:write))
  when 'ascii', 'unicode'
    puts "\n<pre>"
    diagram.write_text($stdout.method(:write))
    puts "\n</pre>"
  end

  puts "\n"
end

#run(argv) ⇒ Object 



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# File 'lib/railroad_diagrams/command.rb', line 11

def run(argv)
  OptionParser.new do |opts|
    opts.banner = <<~BANNER
      This is a test runner for railroad_diagrams:
      Usage: railroad_diagrams [options] [files]
    BANNER

    opts.on('-f', '--format FORMAT', 'Output format (svg, ascii, unicode, standalone)') do |format|
      @format = format
    end
    opts.on('-h', '--help', 'Print this help') do
      puts opts
      exit
    end
    opts.on('-v', '--version', 'Print version') do
      puts "railroad_diagrams #{RailroadDiagrams::VERSION}"
      exit 0
    end
    opts.parse!(argv)
  end

  @test_list = argv

  puts <<~HTML
    <!doctype html>
    <html>
    <head>
      <title>Test</title>
  HTML

  case @format
  when 'ascii'
    TextDiagram.set_formatting(TextDiagram::PARTS_ASCII)
  when 'unicode'
    TextDiagram.set_formatting(TextDiagram::PARTS_UNICODE)
  when 'svg', 'standalone'
    TextDiagram.set_formatting(TextDiagram::PARTS_UNICODE)
    puts <<~CSS
      <style>
        #{Style.default_style}
        .blue text { fill: blue; }
      </style>
    CSS
  end

  puts '</head><body>'

  File.open('test.rb', 'r:utf-8') do |fh|
    eval(fh.read, binding, 'test.rb')
  end

  puts '</body></html>'
end