src/myrurema.rb in myrurema-0.0.4 vs src/myrurema.rb in myrurema-0.1.0

@@ -1,8 +1,9 @@
 require 'optparse'
 require 'pathname'
 require 'shellwords'
+require 'tmpdir'
 
 class Pathname; alias / +; end
 
 class Options
   def initialize(argv)
@@ -10,11 +11,10 @@
     @open_browser = false
     @port = nil
     @dry_run = false
     @ruremadir = Pathname("~/.rurema").expand_path
     @rubyver = RUBY_VERSION
-    @query = ""
 
     @optionparser = OptionParser.new{|o|
       o.on("--init",
            "initialize rurema"){
         @command = :init
@@ -25,17 +25,23 @@
       }
       o.on("--server",
            "start web server"){
         @command = :server 
       }
+      o.on("--preview",
+           "render a reference as HTML"){
+        @command = :preview 
+      }
 
+      o.on("----"){}
+
       o.on("--port=N",
            "port number of the web browser (only meaningful with --server)"){|n|
         @port = n.to_i
       }
       o.on("--browser",
-           "open web browser (only meaningful with --server)"){
+           "open web browser (only meaningful with --server or --preview)"){
         @open_browser = true 
       }
       o.on("--dry-run",
            "show commands only"){
         @dry_run = true 
@@ -46,10 +52,13 @@
       }
       o.on("--rubyver=STR",
            "specify Ruby version (default: #{@rubyver})"){|str|
         @rubyver = str
       }
+
+      o.on("-----"){}
+
       o.on("--version",
            "show version of myrurema"){
         puts MyRurema::VERSION
         exit
       }
@@ -57,16 +66,14 @@
            "show this message"){
         puts o
         exit
       }
     }
-    @query, @num = @optionparser.parse(argv)
-    @query = "" if @query.nil?
-    @num = @num.to_i if @num
+    @rest_args = @optionparser.parse(argv)
   end
   attr_accessor :dry_run, :ruremadir, :rubyver, :open_browser
-  attr_accessor :command, :query, :num, :port
+  attr_accessor :command, :port, :rest_args
 
   def ruremadir=(dir)
     @ruremadir = Pathname(dir)
   end
 
@@ -82,19 +89,22 @@
   def initialize(opt=Options.new(ARGV))
     @opt = opt
   end
 
   def run
-    case 
-    when @opt.command
+    if @opt.command
       send(@opt.command)
-    when @opt.query.empty?
-      @opt.usage
-    when @opt.num
-      search_num(@opt.query, @opt.num, @opt.rubyver)
     else
-      search(@opt.query, @opt.rubyver)
+      query, num = *@opt.rest_args
+      case
+      when query && num
+        search_num(query, num.to_i, @opt.rubyver)
+      when query
+        search(query, @opt.rubyver)
+      else
+        @opt.usage
+      end
     end
   end
 
   def init
     sh "svn co -rHEAD #{SVN_URL}/doctree/trunk #{doctree_path}"
@@ -142,10 +152,32 @@
       cmd = (/mswin/ =~ RUBY_PLATFORM) ? "start" : "open"
       sh "#{cmd} http://localhost:#{port}/view/"
     end
     th.join
   end
+
+  TMP_FILE = Pathname(Dir.tmpdir)/'rurema_preview.html'
+  def preview
+    file, target = *@opt.rest_args
+
+    if file
+      error "file not found: #{file}" unless File.exist?(file)
+
+      result = sh "#{bitclust_path/'tools/bc-tohtml.rb'}" +
+                    " #{file}" +
+                    (target ? " --target=#{target}" : "") +
+                    " --ruby=#{@opt.rubyver}" +
+                    " > #{TMP_FILE}"
+
+      if result && @opt.open_browser
+        cmd = (/mswin/ =~ RUBY_PLATFORM) ? "start" : "open"
+        sh "#{cmd} #{TMP_FILE}"
+      end
+    else
+      sh "cd #{doctree_path/'refm/api/src'}"
+    end
+  end
   
   private
 
   def default_port(ver)
     "10" + ver.scan(/\d/).join
@@ -199,7 +231,8 @@
     system cmd unless @opt.dry_run
   end
 
   def error(msg)
     $stderr.puts msg
+    exit
   end
 end