stash/vendor/golang.org/x/text/internal/match.go
SmallCoccinelle 45f700d6ea
Support Go 1.18: Upgrade gqlgen to v0.17.2 (#2443)
* Upgrade gqlgen to v0.17.2

This enables builds on Go 1.18. github.com/vektah/gqlparser is upgraded
to the newest version too.

Getting this to work is a bit of a hazzle. I had to first remove
vendoring from the repository, perform the upgrade and then re-introduce
the vendor directory. I think gqlgens analysis went wrong for some
reason on the upgrade. It would seem a clean-room installation fixed it.

* Bump project to 1.18

* Update all packages, address gqlgenc breaking changes

* Let `go mod tidy` handle the go.mod file

* Upgrade linter to 1.45.2

* Introduce v1.45.2 of the linter

The linter now correctly warns on `strings.Title` because it isn't
unicode-aware. Fix this by using the suggested fix from x/text/cases
to produce unicode-aware strings.

The mapping isn't entirely 1-1 as this new approach has a larger iface:
it spans all of unicode rather than just ASCII. It coincides for ASCII
however, so things should be largely the same.

* Ready ourselves for errchkjson and contextcheck.

* Revert dockerfile golang version changes for now

Co-authored-by: Kermie <kermie@isinthe.house>
Co-authored-by: WithoutPants <53250216+WithoutPants@users.noreply.github.com>
2022-04-02 18:08:14 +11:00

67 lines
1.9 KiB
Go

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