50 lines
1.1 KiB
Go
50 lines
1.1 KiB
Go
// Copyright (c) 2017 Couchbase, Inc.
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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 levenshtein
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import "fmt"
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type statesStack []*state
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func (s statesStack) String() string {
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rv := ""
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for i := 0; i < len(s); i++ {
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matchStr := ""
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if s[i].match {
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matchStr = " (MATCH) "
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}
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rv += fmt.Sprintf("state %d%s:\n%v\n", i, matchStr, s[i])
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}
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return rv
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}
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func (s statesStack) Push(v *state) statesStack {
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return append(s, v)
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}
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type intsStack [][]int
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func (s intsStack) Push(v []int) intsStack {
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return append(s, v)
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}
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func (s intsStack) Pop() (intsStack, []int) {
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l := len(s)
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if l < 1 {
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return s, nil
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}
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return s[:l-1], s[l-1]
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}
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