cli.rb in synvert-0.0.16

- old
+ new

@@ -38,12 +38,18 @@
         end
       end
       true
     rescue SystemExit
       true
+    rescue Parser::SyntaxError => e
+      puts "Syntax error: #{e.message}"
+      puts "file #{e.diagnostic.location.source_buffer.name}"
+      puts "line #{e.diagnostic.location.line}"
+      false
     rescue Exception => e
-      puts "Error: " + e.message
+      print "Error: "
+      p e
       false
     end
 
   private
 
@@ -66,10 +72,14 @@
           @options[:snippet_name] = snippet_name
         end
         opts.on '-r', '--run SNIPPET_NAMES', 'run specified snippets' do |snippet_names|
           @options[:snippet_names] = snippet_names.split(',').map(&:strip)
         end
+        opts.on '-v', '--version', 'show this version' do
+          puts Synvert::VERSION
+          exit
+        end
       end
       paths = optparse.parse(args)
       Configuration.instance.set :path, paths.first || Dir.pwd
     end
 
@@ -88,10 +98,10 @@
     end
 
     # List and print all available rewriters.
     def list_available_rewriters
       Rewriter.availables.each do |rewriter|
-        print rewriter.name + "  "
+        print rewriter.name.to_s + "  "
       end
       puts
     end
 
     # Query and print available rewriters.