| // Copyright 2021 The Fuchsia Authors. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Package compare implements comparators which can be used to score similarity |
| // between various build attributes. |
| package compare |
| |
| import ( |
| "github.com/texttheater/golang-levenshtein/levenshtein" |
| ) |
| |
| // TextComparator is an interface which can score similarity between two |
| // strings. |
| type TextComparator interface { |
| Compare(s1, s2 string) float64 |
| } |
| |
| // LevenshteinComparator implements the TextComparator interface, and scores |
| // similarity between two strings as their Levenshtein ratio. |
| type LevenshteinComparator struct { |
| Opts levenshtein.Options |
| } |
| |
| func (c LevenshteinComparator) Compare(s1, s2 string) float64 { |
| return levenshtein.RatioForStrings([]rune(s1), []rune(s2), c.Opts) |
| } |
