64 lines
1.5 KiB
Go
64 lines
1.5 KiB
Go
// Copyright 2014 The Cayley Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package graph
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import "fmt"
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type ResultTree struct {
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result Value
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subtrees []*ResultTree
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}
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func NewResultTree(result Value) *ResultTree {
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return &ResultTree{result: result}
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}
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func (t *ResultTree) String() string {
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base := fmt.Sprintf("(%d", t.result)
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if len(t.subtrees) != 0 {
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for _, sub := range t.subtrees {
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base += fmt.Sprintf(" %s", sub)
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}
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}
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base += ")"
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return base
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}
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func (t *ResultTree) AddSubtree(sub *ResultTree) {
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t.subtrees = append(t.subtrees, sub)
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}
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func StringResultTreeEvaluator(it Iterator) string {
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ok := true
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out := ""
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for {
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_, ok = it.Next()
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if !ok {
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break
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}
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out += it.ResultTree().String()
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out += "\n"
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for it.NextResult() == true {
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out += " "
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out += it.ResultTree().String()
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out += "\n"
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}
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}
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return out
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}
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func PrintResultTreeEvaluator(it Iterator) {
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fmt.Print(StringResultTreeEvaluator(it))
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}
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