Complete file paths in strings that aren't closed yet.

git-svn-id: http://svn.macosforge.org/repository/ruby/DietRB/trunk@4866 23306eb0-4c56-4727-a40e-e92c0eb68959

lib/irb/ext/completion.rb

@@ -113,15 +113,28 @@ def results
         end
 
         result = if call
-                   if m = (methods || methods_of_object(root))
-                     format_methods(receiver, m, filter)
-                   end
-                 else
-                   match_methods_vars_or_consts_in_scope(root)
-                 end
+          if m = (methods || methods_of_object(root))
+            format_methods(receiver, m, filter)
+          end
+        elsif root[TYPE] == :string_literal && root[VALUE][TYPE] == :string_content
+          # in the form of: "~/code/
+          expand_path(source)
+        else
+          match_methods_vars_or_consts_in_scope(root)
+        end
         result.sort.uniq if result
       end
     end
+
+    def expand_path(source)
+      tokens         = Ripper.lex(source)
+      path           = tokens[0][2]
+      string_open    = tokens[1][2]
+      end_with_slash = path.length > 1 && path.end_with?('/')
+      path           = File.expand_path(path)
+      path          << '/' if end_with_slash
+      Dir.glob("#{path}*", File::FNM_CASEFOLD).map { |f| "#{string_open}#{f}" }
+    end
 
     def unwind_callstack(root, stack = [])
       if root[TYPE] == :call

spec/ext/completion_spec.rb

@@ -249,6 +249,13 @@ def a_local_method; end
     end
   end
 
+  it "completes file paths" do
+    complete("'/").should == Dir.glob('/*').sort.map { |f| "'#{f}" }
+    complete("'#{ROOT}/lib/../Ra").should == ["'#{File.join(ROOT, "Rakefile")}"]
+    complete("%{#{ROOT}/li").should == ['LICENSE', 'lib'].map { |f| "%{#{File.join(ROOT, f)}" }
+    complete("\"#{ROOT}/lib/").should == ['irb', 'irb.rb'].map { |f| "\"#{File.join(ROOT, 'lib', f)}" }
+  end
+
   it "does not crash when trying to complete garbage" do
     complete("/").should == nil
     complete("./Rake").should == nil