lib/rouge/cli.rb in rouge-0.2.0 vs lib/rouge/cli.rb in rouge-0.2.1

@@ -15,11 +15,11 @@
       if argv.include? '-v' or argv.include? '--version'
         puts Rouge.version
         exit 0
       end
 
-      unless %w(highlight style).include?(argv.first)
+      unless %w(highlight style list --help -h help).include?(argv.first)
         argv.unshift 'highlight'
       end
 
       super(argv, *a)
     end
@@ -28,11 +28,11 @@
     option :input_file, :aliases => '-i',  :desc => 'the file to operate on'
     option :lexer, :aliases => '-l',
       :desc => ('Which lexer to use.  If not provided, rougify will try to ' +
                 'guess based on --mimetype, the filename, and the file ' +
                 'contents.')
-    option :formatter, :aliases => '-f', :default => 'html',
+    option :formatter, :aliases => '-f', :default => 'terminal256',
       :desc => ('Which formatter to use.')
     option :mimetype, :aliases => '-m',
       :desc => ('a mimetype that Rouge will use to guess the correct lexer. ' +
                 'This is ignored if --lexer is specified.')
     option :lexer_opts, :aliases => '-L', :type => :hash, :default => {},
@@ -67,9 +67,25 @@
     def style(theme_name='thankful_eyes')
       theme = Theme.find(theme_name)
       raise "unknown theme: #{theme_name}" unless theme
 
       puts theme.new(options).render
+    end
+
+    desc 'list', 'list the available lexers, formatters, and styles'
+    def list
+      puts "== Available Lexers =="
+      all_lexers = Lexer.all
+      max_len = all_lexers.map { |l| l.tag.size }.max
+
+      Lexer.all.each do |lexer|
+        desc = "#{lexer.desc}"
+        if lexer.aliases.any?
+          desc << " [aliases: #{lexer.aliases.join(',')}]"
+        end
+        puts "%s: %s" % [lexer.tag, desc]
+        puts
+      end
     end
 
   private
     # TODO: does Thor do this for me?
     def normalize_hash_keys(hash)