1 files changed, 60 insertions, 0 deletions
diff --git a/hugolib/handler_base.go b/hugolib/handler_base.go
new file mode 100644
index 000000000..99c15e15d
--- /dev/null
+++ b/hugolib/handler_base.go
@@ -0,0 +1,60 @@
+// Copyright 2015 The Hugo Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package hugolib
+
+import (
+	"github.com/gohugoio/hugo/source"
+)
+
+type Handler interface {
+	FileConvert(*source.File, *Site) HandledResult
+	PageConvert(*Page) HandledResult
+	Read(*source.File, *Site) HandledResult
+	Extensions() []string
+}
+
+type Handle struct {
+	extensions []string
+}
+
+func (h Handle) Extensions() []string {
+	return h.extensions
+}
+
+type HandledResult struct {
+	page *Page
+	file *source.File
+	err  error
+}
+
+// HandledResult is an error
+func (h HandledResult) Error() string {
+	if h.err != nil {
+		if h.page != nil {
+			return "Error: " + h.err.Error() + " for " + h.page.File.LogicalName()
+		}
+		if h.file != nil {
+			return "Error: " + h.err.Error() + " for " + h.file.LogicalName()
+		}
+	}
+	return h.err.Error()
+}
+
+func (h HandledResult) String() string {
+	return h.Error()
+}
+
+func (h HandledResult) Page() *Page {
+	return h.page
+}