improve to integrate to website

exe/yamd

@@ -20,6 +20,7 @@
 require 'bundler/setup'
 
 require 'pathname'
+require 'optparse'
 
 require 'yamd'
 require 'yamd/code'
@@ -93,7 +94,12 @@ class HTMLRenderer < YAMD::Renderer
 	def tag(name, **attrs)
 		@buf << "<#{name}"
 		attrs.each { |k, v|
-			@buf << " " << k << "=" << v.dump
+			@buf << " "
+			if k.kind_of? Symbol
+				k = k.to_s
+			end
+			@buf << k
+			@buf << "=" << v.dump
 		}
 		@buf << ">"
 		yield
@@ -120,7 +126,21 @@ class HTMLRenderer < YAMD::Renderer
 	end
 end
 
-File.open(ARGV[0]) { |f|
+options = {
+	:in => nil,
+	:out => nil,
+}
+
+OptionParser.new do |opts|
+	opts.on '--out=FILE', 'Output file'
+	opts.on '--in=FILE', 'Input file'
+	opts.on '--help' do
+		puts opts
+		exit false
+	end
+end.parse!(into: options)
+
+File.open(options[:in]) { |f|
 	state = YAMD::State.new f
 	ctx = YAMD::Context.new 0
 
@@ -132,6 +152,6 @@ File.open(ARGV[0]) { |f|
 	renderer = HTMLRenderer.new
 
 	eval(code).(renderer)
-	puts renderer.finalize
 
+	Pathname.new(options[:out]).write(renderer.finalize)
 }