Brendan LE GLAUNEC
5849898283
Unit tests functional and coverage back to 100% Add more routes to dictionary, add more credentials, add default port 5554, rename cameradar logs ENV variable, improve unit test readability, remove tmp file
68 lines
1.9 KiB
Go
68 lines
1.9 KiB
Go
// Copyright 2015 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package internal
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// This file contains matchers that implement CLDR inheritance.
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//
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// See http://unicode.org/reports/tr35/#Locale_Inheritance.
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//
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// Some of the inheritance described in this document is already handled by
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// the cldr package.
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import (
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"golang.org/x/text/language"
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)
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// TODO: consider if (some of the) matching algorithm needs to be public after
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// getting some feel about what is generic and what is specific.
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// NewInheritanceMatcher returns a matcher that matches based on the inheritance
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// chain.
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//
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// The matcher uses canonicalization and the parent relationship to find a
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// match. The resulting match will always be either Und or a language with the
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// same language and script as the requested language. It will not match
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// languages for which there is understood to be mutual or one-directional
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// intelligibility.
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//
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// A Match will indicate an Exact match if the language matches after
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// canonicalization and High if the matched tag is a parent.
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func NewInheritanceMatcher(t []language.Tag) *InheritanceMatcher {
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tags := &InheritanceMatcher{make(map[language.Tag]int)}
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for i, tag := range t {
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ct, err := language.All.Canonicalize(tag)
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if err != nil {
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ct = tag
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}
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tags.index[ct] = i
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}
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return tags
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}
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type InheritanceMatcher struct {
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index map[language.Tag]int
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}
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func (m InheritanceMatcher) Match(want ...language.Tag) (language.Tag, int, language.Confidence) {
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for _, t := range want {
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ct, err := language.All.Canonicalize(t)
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if err != nil {
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ct = t
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}
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conf := language.Exact
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for {
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if index, ok := m.index[ct]; ok {
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return ct, index, conf
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}
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if ct == language.Und {
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break
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}
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ct = ct.Parent()
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conf = language.High
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}
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}
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return language.Und, 0, language.No
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}
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