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78 lines
1.6 KiB
Go
78 lines
1.6 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 precis
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import (
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"unicode"
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"golang.org/x/text/runes"
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"golang.org/x/text/transform"
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"golang.org/x/text/unicode/norm"
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)
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var (
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// Implements the Nickname profile specified in RFC 8266.
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Nickname *Profile = nickname
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// Implements the UsernameCaseMapped profile specified in RFC 8265.
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UsernameCaseMapped *Profile = usernameCaseMap
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// Implements the UsernameCasePreserved profile specified in RFC 8265.
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UsernameCasePreserved *Profile = usernameNoCaseMap
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// Implements the OpaqueString profile defined in RFC 8265 for passwords and
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// other secure labels.
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OpaqueString *Profile = opaquestring
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)
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var (
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nickname = &Profile{
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options: getOpts(
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AdditionalMapping(func() transform.Transformer {
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return &nickAdditionalMapping{}
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}),
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IgnoreCase,
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Norm(norm.NFKC),
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DisallowEmpty,
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repeat,
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),
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class: freeform,
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}
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usernameCaseMap = &Profile{
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options: getOpts(
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FoldWidth,
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LowerCase(),
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Norm(norm.NFC),
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BidiRule,
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),
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class: identifier,
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}
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usernameNoCaseMap = &Profile{
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options: getOpts(
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FoldWidth,
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Norm(norm.NFC),
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BidiRule,
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),
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class: identifier,
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}
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opaquestring = &Profile{
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options: getOpts(
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AdditionalMapping(func() transform.Transformer {
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return mapSpaces
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}),
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Norm(norm.NFC),
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DisallowEmpty,
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),
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class: freeform,
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}
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)
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// mapSpaces is a shared value of a runes.Map transformer.
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var mapSpaces transform.Transformer = runes.Map(func(r rune) rune {
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if unicode.Is(unicode.Zs, r) {
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return ' '
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}
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return r
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})
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