lib/slidedown.rb in slidedown-0.1.0 vs lib/slidedown.rb in slidedown-0.1.1

@@ -1,64 +1,103 @@
 require 'rubygems'
+require 'optparse'
 require 'nokogiri'
-require 'rdiscount'
 require 'makers-mark'
 require 'erb'
 require File.join(File.dirname(__FILE__), 'slide')
 
 $SILENT = true
 
 class SlideDown
+  USAGE = "The SlideDown command line interface takes a .md (Markdown) file as its only required argument. It will convert the file to HTML in standard out. Options:
+  -t, --template [TEMPLATE] the .erb files in /templates directory. Default is -t default, which prints stylesheets and javascripts inline. The import template uses link and script tags."
+
+  attr_accessor :stylesheets, :title
   attr_reader :classes
 
-  def self.render(args)
-    new(File.read(File.join(Dir.pwd, *args))).render
+  def self.run!(argv = ARGV)
+    args = argv.dup
+
+    if args.empty?
+      puts USAGE
+    else
+      source = args[0]
+      if args.length == 1
+        render(source)
+      else
+        option_parser(source).parse!(args)
+      end
+    end
   end
 
+  def self.option_parser(source)
+    OptionParser.new do |opts|
+      opts.on('-h', '--help') { puts USAGE }
+      opts.on('-t', '--template TEMPLATE') do |template|
+        render(source, template)
+      end
+    end
+  end
+
+  def self.render(source_path, template = "default")
+    if source_path
+      slideshow = new(File.read(source_path))
+      puts slideshow.render(template)
+    end
+  end
+
   # Ensures that the first slide has proper !SLIDE declaration
-  def initialize(raw)
+  def initialize(raw, opts = {})
     @raw = raw =~ /\A!SLIDE/ ? raw : "!SLIDE\n#{raw}"
     extract_classes!
+
+    self.stylesheets = opts[:stylesheets] || local_stylesheets
+    self.title =       opts[:title]       || "Slides"
   end
 
   def slides
     @slides ||= lines.map { |text| Slide.new(text, *@classes.shift) }
   end
 
   def read(path)
-    File.read(File.dirname(__FILE__) + '/../templates/%s' % path)
+    File.read(File.join(File.dirname(__FILE__), '..', "templates", path))
   end
 
-  def render
-    template = File.read(File.dirname(__FILE__) + '/../templates/template.erb')
+  def render(name)
+    directory = File.join(File.dirname(__FILE__), "..", "templates")
+    path      = File.join(directory, "#{name}.erb")
+    template  = File.read(path)
     ERB.new(template).result(binding)
   end
 
   private
 
   def lines
-    @lines ||= @raw.split(/^!SLIDE/) \
-      .reject { |line| line.empty? }
+    @lines ||= @raw.split(/^!SLIDE\s*([a-z\s]*)$/).reject { |line| line.empty? }
   end
 
-  def parse_snippets(slide)
-    slide.gsub!(/@@@\s([\w\s]+)\s*$/, %(<pre class="#{$1}"><code>))
-    slide.gsub!(/@@@\s*$/, %(</code></pre>))
+  def local_stylesheets
+    Dir[Dir.pwd + '/*.stylesheets']
   end
 
-  # These get added to the dom.
-  def stylesheets
-    Dir[Dir.pwd + '/*.css'].map { |path| File.read(path) }
-  end
-
   def jabascripts
-    Dir[Dir.pwd + '/*.js'].map { |path| File.read(path) }
+    Dir[Dir.pwd + '/*.javascripts'].map { |path| File.read(path) }
   end
 
   def extract_classes!
     @classes = []
     @raw.gsub!(/^!SLIDE\s*([a-z\s]*)$/) do |klass|
       @classes << klass.to_s.chomp.gsub('!SLIDE', '')
       "!SLIDE"
-    end ; @classes
+    end
+    @classes
+  end
+
+  def extract_notes!
+    @raw.gsub!(/^!NOTES\s*(.*)!SLIDE$/m) do |note|
+      '!SLIDE'
+    end
+    @raw.gsub!(/^!NOTES\s*(.*\n)$/m) do |note|
+      ''
+    end
   end
 end