Use Go-conventional filenaming

graph/result_tree_evaluator.go

@@ -0,0 +1,70 @@
+// Copyright 2014 The Cayley 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 graph
+
+import (
+	"container/list"
+	"fmt"
+)
+
+type ResultTree struct {
+	result   TSVal
+	subtrees *list.List
+}
+
+func NewResultTree(result TSVal) *ResultTree {
+	var tree ResultTree
+	tree.subtrees = list.New()
+	tree.result = result
+	return &tree
+}
+
+func (tree *ResultTree) ToString() string {
+	base := fmt.Sprintf("(%d", tree.result)
+	if tree.subtrees.Len() != 0 {
+		for e := tree.subtrees.Front(); e != nil; e = e.Next() {
+			base += fmt.Sprintf(" %s", (e.Value.(*ResultTree)).ToString())
+		}
+	}
+	base += ")"
+	return base
+}
+
+func (tree *ResultTree) AddSubtree(sub *ResultTree) {
+	tree.subtrees.PushBack(sub)
+}
+
+func StringResultTreeEvaluator(it Iterator) string {
+	ok := true
+	out := ""
+	for {
+		_, ok = it.Next()
+		if !ok {
+			break
+		}
+		out += it.GetResultTree().ToString()
+		out += "\n"
+		for it.NextResult() == true {
+			out += " "
+			out += it.GetResultTree().ToString()
+			out += "\n"
+		}
+	}
+	return out
+}
+
+func PrintResultTreeEvaluator(it Iterator) {
+	fmt.Print(StringResultTreeEvaluator(it))
+}