695 lines
13 KiB
Go
695 lines
13 KiB
Go
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// Copyright 2016 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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// +build go1.10
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package bidirule
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import (
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"golang.org/x/text/transform"
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"golang.org/x/text/unicode/bidi"
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)
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var testCases = [][]ruleTest{
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// Go-specific rules.
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// Invalid UTF-8 is invalid.
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0: []ruleTest{{
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in: "",
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dir: bidi.LeftToRight,
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}, {
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in: "\x80",
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dir: bidi.LeftToRight,
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err: ErrInvalid,
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n: 0,
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}, {
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in: "\xcc",
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dir: bidi.LeftToRight,
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err: ErrInvalid,
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n: 0,
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}, {
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in: "abc\x80",
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dir: bidi.LeftToRight,
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err: ErrInvalid,
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n: 3,
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}, {
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in: "abc\xcc",
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dir: bidi.LeftToRight,
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err: ErrInvalid,
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n: 3,
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}, {
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in: "abc\xccdef",
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dir: bidi.LeftToRight,
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err: ErrInvalid,
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n: 3,
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}, {
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in: "\xccdef",
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dir: bidi.LeftToRight,
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err: ErrInvalid,
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n: 0,
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}, {
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in: strR + "\x80",
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dir: bidi.RightToLeft,
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err: ErrInvalid,
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n: len(strR),
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}, {
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in: strR + "\xcc",
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dir: bidi.RightToLeft,
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err: ErrInvalid,
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n: len(strR),
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}, {
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in: strAL + "\xcc" + strR,
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dir: bidi.RightToLeft,
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err: ErrInvalid,
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n: len(strAL),
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}, {
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in: "\xcc" + strR,
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dir: bidi.RightToLeft,
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err: ErrInvalid,
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n: 0,
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}},
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// Rule 2.1: The first character must be a character with Bidi property L,
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// R, or AL. If it has the R or AL property, it is an RTL label; if it has
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// the L property, it is an LTR label.
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1: []ruleTest{{
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in: strL,
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dir: bidi.LeftToRight,
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}, {
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in: strR,
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dir: bidi.RightToLeft,
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}, {
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in: strAL,
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dir: bidi.RightToLeft,
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}, {
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in: strAN,
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dir: bidi.RightToLeft,
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err: ErrInvalid,
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}, {
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in: strEN,
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dir: bidi.LeftToRight,
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err: ErrInvalid,
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n: len(strEN),
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}, {
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in: strES,
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dir: bidi.LeftToRight,
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err: ErrInvalid,
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n: len(strES),
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}, {
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in: strET,
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dir: bidi.LeftToRight,
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err: ErrInvalid,
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n: len(strET),
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}, {
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in: strCS,
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dir: bidi.LeftToRight,
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err: ErrInvalid,
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n: len(strCS),
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}, {
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in: strNSM,
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dir: bidi.LeftToRight,
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err: ErrInvalid,
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n: len(strNSM),
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}, {
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in: strBN,
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dir: bidi.LeftToRight,
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err: ErrInvalid,
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n: len(strBN),
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}, {
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in: strB,
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dir: bidi.LeftToRight,
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err: ErrInvalid,
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n: len(strB),
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}, {
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in: strS,
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dir: bidi.LeftToRight,
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err: ErrInvalid,
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n: len(strS),
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}, {
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in: strWS,
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dir: bidi.LeftToRight,
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err: ErrInvalid,
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n: len(strWS),
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}, {
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in: strON,
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dir: bidi.LeftToRight,
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err: ErrInvalid,
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n: len(strON),
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}, {
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in: strEN + strR,
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dir: bidi.RightToLeft,
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err: ErrInvalid,
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n: 3,
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}, {
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in: strES + strR,
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dir: bidi.RightToLeft,
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err: ErrInvalid,
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n: 2,
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}, {
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in: strET + strR,
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dir: bidi.RightToLeft,
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err: ErrInvalid,
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n: 1,
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}, {
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in: strCS + strR,
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dir: bidi.RightToLeft,
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err: ErrInvalid,
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n: 1,
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}, {
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in: strNSM + strR,
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dir: bidi.RightToLeft,
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err: ErrInvalid,
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n: 2,
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}, {
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in: strBN + strR,
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dir: bidi.RightToLeft,
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err: ErrInvalid,
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n: 3,
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}, {
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in: strB + strR,
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dir: bidi.RightToLeft,
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err: ErrInvalid,
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n: 3,
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}, {
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in: strS + strR,
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dir: bidi.RightToLeft,
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err: ErrInvalid,
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n: 1,
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}, {
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in: strWS + strR,
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dir: bidi.RightToLeft,
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err: ErrInvalid,
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n: 1,
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}, {
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in: strON + strR,
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dir: bidi.RightToLeft,
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err: ErrInvalid,
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n: 1,
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}},
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// Rule 2.2: In an RTL label, only characters with the Bidi properties R,
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// AL, AN, EN, ES, CS, ET, ON, BN, or NSM are allowed.
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2: []ruleTest{{
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in: strR + strR + strAL,
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dir: bidi.RightToLeft,
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}, {
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in: strR + strAL + strR,
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dir: bidi.RightToLeft,
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}, {
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in: strR + strAN + strAL,
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dir: bidi.RightToLeft,
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}, {
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in: strR + strEN + strR,
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dir: bidi.RightToLeft,
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}, {
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in: strR + strES + strR,
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dir: bidi.RightToLeft,
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}, {
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in: strR + strCS + strR,
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dir: bidi.RightToLeft,
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}, {
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in: strR + strET + strAL,
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dir: bidi.RightToLeft,
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}, {
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in: strR + strON + strR,
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dir: bidi.RightToLeft,
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}, {
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in: strR + strBN + strR,
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dir: bidi.RightToLeft,
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}, {
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in: strR + strNSM + strAL,
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dir: bidi.RightToLeft,
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}, {
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in: strR + strL + strR,
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dir: bidi.RightToLeft,
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n: len(strR),
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err: ErrInvalid,
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}, {
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in: strR + strB + strR,
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dir: bidi.RightToLeft,
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n: len(strR),
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err: ErrInvalid,
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}, {
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in: strR + strS + strAL,
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dir: bidi.RightToLeft,
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n: len(strR),
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err: ErrInvalid,
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}, {
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in: strR + strWS + strAL,
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dir: bidi.RightToLeft,
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n: len(strR),
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err: ErrInvalid,
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}, {
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in: strAL + strR + strAL,
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dir: bidi.RightToLeft,
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}, {
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in: strAL + strAL + strR,
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dir: bidi.RightToLeft,
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}, {
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in: strAL + strAN + strAL,
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dir: bidi.RightToLeft,
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}, {
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in: strAL + strEN + strR,
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dir: bidi.RightToLeft,
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}, {
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in: strAL + strES + strR,
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dir: bidi.RightToLeft,
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}, {
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in: strAL + strCS + strR,
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dir: bidi.RightToLeft,
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}, {
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in: strAL + strET + strAL,
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dir: bidi.RightToLeft,
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}, {
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in: strAL + strON + strR,
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dir: bidi.RightToLeft,
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}, {
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in: strAL + strBN + strR,
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dir: bidi.RightToLeft,
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}, {
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in: strAL + strNSM + strAL,
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dir: bidi.RightToLeft,
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}, {
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in: strAL + strL + strR,
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dir: bidi.RightToLeft,
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n: len(strAL),
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err: ErrInvalid,
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}, {
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in: strAL + strB + strR,
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dir: bidi.RightToLeft,
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n: len(strAL),
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err: ErrInvalid,
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}, {
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in: strAL + strS + strAL,
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dir: bidi.RightToLeft,
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n: len(strAL),
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err: ErrInvalid,
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}, {
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in: strAL + strWS + strAL,
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dir: bidi.RightToLeft,
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n: len(strAL),
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err: ErrInvalid,
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}},
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// Rule 2.3: In an RTL label, the end of the label must be a character with
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// Bidi property R, AL, EN, or AN, followed by zero or more characters with
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// Bidi property NSM.
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3: []ruleTest{{
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in: strR + strNSM,
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dir: bidi.RightToLeft,
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}, {
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in: strR + strR,
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dir: bidi.RightToLeft,
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}, {
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in: strR + strAL + strNSM,
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dir: bidi.RightToLeft,
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}, {
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in: strR + strEN + strNSM + strNSM,
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dir: bidi.RightToLeft,
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}, {
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in: strR + strAN,
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dir: bidi.RightToLeft,
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}, {
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in: strR + strES + strNSM,
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dir: bidi.RightToLeft,
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n: len(strR + strES + strNSM),
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err: ErrInvalid,
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}, {
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in: strR + strCS + strNSM + strNSM,
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dir: bidi.RightToLeft,
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n: len(strR + strCS + strNSM + strNSM),
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err: ErrInvalid,
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}, {
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in: strR + strET,
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dir: bidi.RightToLeft,
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n: len(strR + strET),
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err: ErrInvalid,
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}, {
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in: strR + strON + strNSM,
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dir: bidi.RightToLeft,
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n: len(strR + strON + strNSM),
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err: ErrInvalid,
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}, {
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in: strR + strBN + strNSM + strNSM,
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dir: bidi.RightToLeft,
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n: len(strR + strBN + strNSM + strNSM),
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err: ErrInvalid,
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}, {
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in: strR + strL + strNSM,
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dir: bidi.RightToLeft,
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n: len(strR),
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err: ErrInvalid,
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}, {
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in: strR + strB + strNSM + strNSM,
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dir: bidi.RightToLeft,
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n: len(strR),
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err: ErrInvalid,
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}, {
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in: strR + strS,
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dir: bidi.RightToLeft,
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n: len(strR),
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err: ErrInvalid,
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}, {
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in: strR + strWS,
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dir: bidi.RightToLeft,
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n: len(strR),
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err: ErrInvalid,
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}, {
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in: strAL + strNSM,
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dir: bidi.RightToLeft,
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}, {
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in: strAL + strR,
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dir: bidi.RightToLeft,
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}, {
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in: strAL + strAL + strNSM,
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dir: bidi.RightToLeft,
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}, {
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in: strAL + strEN + strNSM + strNSM,
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dir: bidi.RightToLeft,
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}, {
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in: strAL + strAN,
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dir: bidi.RightToLeft,
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}, {
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in: strAL + strES + strNSM,
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dir: bidi.RightToLeft,
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n: len(strAL + strES + strNSM),
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err: ErrInvalid,
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}, {
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in: strAL + strCS + strNSM + strNSM,
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dir: bidi.RightToLeft,
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n: len(strAL + strCS + strNSM + strNSM),
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err: ErrInvalid,
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}, {
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in: strAL + strET,
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dir: bidi.RightToLeft,
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n: len(strAL + strET),
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err: ErrInvalid,
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}, {
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in: strAL + strON + strNSM,
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dir: bidi.RightToLeft,
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n: len(strAL + strON + strNSM),
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err: ErrInvalid,
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}, {
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in: strAL + strBN + strNSM + strNSM,
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dir: bidi.RightToLeft,
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n: len(strAL + strBN + strNSM + strNSM),
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err: ErrInvalid,
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}, {
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in: strAL + strL + strNSM,
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dir: bidi.RightToLeft,
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n: len(strAL),
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err: ErrInvalid,
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}, {
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in: strAL + strB + strNSM + strNSM,
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dir: bidi.RightToLeft,
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n: len(strAL),
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err: ErrInvalid,
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}, {
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in: strAL + strS,
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dir: bidi.RightToLeft,
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n: len(strAL),
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err: ErrInvalid,
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}, {
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in: strAL + strWS,
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dir: bidi.RightToLeft,
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n: len(strAL),
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err: ErrInvalid,
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}},
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// Rule 2.4: In an RTL label, if an EN is present, no AN may be present,
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// and vice versa.
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4: []ruleTest{{
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in: strR + strEN + strAN,
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dir: bidi.RightToLeft,
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n: len(strR + strEN),
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err: ErrInvalid,
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}, {
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in: strR + strAN + strEN + strNSM,
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dir: bidi.RightToLeft,
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n: len(strR + strAN),
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err: ErrInvalid,
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}, {
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in: strAL + strEN + strAN,
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dir: bidi.RightToLeft,
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n: len(strAL + strEN),
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err: ErrInvalid,
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}, {
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in: strAL + strAN + strEN + strNSM,
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dir: bidi.RightToLeft,
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n: len(strAL + strAN),
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err: ErrInvalid,
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}},
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// Rule 2.5: In an LTR label, only characters with the Bidi properties L,
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// EN, ES, CS, ET, ON, BN, or NSM are allowed.
|
||
|
5: []ruleTest{{
|
||
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in: strL + strL + strL,
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dir: bidi.LeftToRight,
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}, {
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in: strL + strEN + strL,
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dir: bidi.LeftToRight,
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}, {
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in: strL + strES + strL,
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dir: bidi.LeftToRight,
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}, {
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in: strL + strCS + strL,
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dir: bidi.LeftToRight,
|
||
|
}, {
|
||
|
in: strL + strET + strL,
|
||
|
dir: bidi.LeftToRight,
|
||
|
}, {
|
||
|
in: strL + strON + strL,
|
||
|
dir: bidi.LeftToRight,
|
||
|
}, {
|
||
|
in: strL + strBN + strL,
|
||
|
dir: bidi.LeftToRight,
|
||
|
}, {
|
||
|
in: strL + strNSM + strL,
|
||
|
dir: bidi.LeftToRight,
|
||
|
}, {
|
||
|
in: strL + strR + strL,
|
||
|
dir: bidi.RightToLeft,
|
||
|
n: len(strL),
|
||
|
err: ErrInvalid,
|
||
|
}, {
|
||
|
in: strL + strAL + strL,
|
||
|
dir: bidi.RightToLeft,
|
||
|
n: len(strL),
|
||
|
err: ErrInvalid,
|
||
|
}, {
|
||
|
in: strL + strAN + strL,
|
||
|
dir: bidi.RightToLeft,
|
||
|
n: len(strL),
|
||
|
err: ErrInvalid,
|
||
|
}, {
|
||
|
in: strL + strB + strL,
|
||
|
dir: bidi.LeftToRight,
|
||
|
n: len(strL + strB + strL),
|
||
|
err: ErrInvalid,
|
||
|
}, {
|
||
|
in: strL + strB + strL + strR,
|
||
|
dir: bidi.RightToLeft,
|
||
|
n: len(strL + strB + strL),
|
||
|
err: ErrInvalid,
|
||
|
}, {
|
||
|
in: strL + strS + strL,
|
||
|
dir: bidi.LeftToRight,
|
||
|
n: len(strL + strS + strL),
|
||
|
err: ErrInvalid,
|
||
|
}, {
|
||
|
in: strL + strS + strL + strR,
|
||
|
dir: bidi.RightToLeft,
|
||
|
n: len(strL + strS + strL),
|
||
|
err: ErrInvalid,
|
||
|
}, {
|
||
|
in: strL + strWS + strL,
|
||
|
dir: bidi.LeftToRight,
|
||
|
n: len(strL + strWS + strL),
|
||
|
err: ErrInvalid,
|
||
|
}, {
|
||
|
in: strL + strWS + strL + strR,
|
||
|
dir: bidi.RightToLeft,
|
||
|
n: len(strL + strWS + strL),
|
||
|
err: ErrInvalid,
|
||
|
}},
|
||
|
|
||
|
// Rule 2.6: In an LTR label, the end of the label must be a character with
|
||
|
// Bidi property L or EN, followed by zero or more characters with Bidi
|
||
|
// property NSM.
|
||
|
6: []ruleTest{{
|
||
|
in: strL,
|
||
|
dir: bidi.LeftToRight,
|
||
|
}, {
|
||
|
in: strL + strNSM,
|
||
|
dir: bidi.LeftToRight,
|
||
|
}, {
|
||
|
in: strL + strNSM + strNSM,
|
||
|
dir: bidi.LeftToRight,
|
||
|
}, {
|
||
|
in: strL + strEN,
|
||
|
dir: bidi.LeftToRight,
|
||
|
}, {
|
||
|
in: strL + strEN + strNSM,
|
||
|
dir: bidi.LeftToRight,
|
||
|
}, {
|
||
|
in: strL + strEN + strNSM + strNSM,
|
||
|
dir: bidi.LeftToRight,
|
||
|
}, {
|
||
|
in: strL + strES,
|
||
|
dir: bidi.LeftToRight,
|
||
|
n: len(strL + strES),
|
||
|
err: ErrInvalid,
|
||
|
}, {
|
||
|
in: strL + strES + strR,
|
||
|
dir: bidi.RightToLeft,
|
||
|
n: len(strL + strES),
|
||
|
err: ErrInvalid,
|
||
|
}, {
|
||
|
in: strL + strCS,
|
||
|
dir: bidi.LeftToRight,
|
||
|
n: len(strL + strCS),
|
||
|
err: ErrInvalid,
|
||
|
}, {
|
||
|
in: strL + strCS + strR,
|
||
|
dir: bidi.RightToLeft,
|
||
|
n: len(strL + strCS),
|
||
|
err: ErrInvalid,
|
||
|
}, {
|
||
|
in: strL + strET,
|
||
|
dir: bidi.LeftToRight,
|
||
|
n: len(strL + strET),
|
||
|
err: ErrInvalid,
|
||
|
}, {
|
||
|
in: strL + strET + strR,
|
||
|
dir: bidi.RightToLeft,
|
||
|
n: len(strL + strET),
|
||
|
err: ErrInvalid,
|
||
|
}, {
|
||
|
in: strL + strON,
|
||
|
dir: bidi.LeftToRight,
|
||
|
n: len(strL + strON),
|
||
|
err: ErrInvalid,
|
||
|
}, {
|
||
|
in: strL + strON + strR,
|
||
|
dir: bidi.RightToLeft,
|
||
|
n: len(strL + strON),
|
||
|
err: ErrInvalid,
|
||
|
}, {
|
||
|
in: strL + strBN,
|
||
|
dir: bidi.LeftToRight,
|
||
|
n: len(strL + strBN),
|
||
|
err: ErrInvalid,
|
||
|
}, {
|
||
|
in: strL + strBN + strR,
|
||
|
dir: bidi.RightToLeft,
|
||
|
n: len(strL + strBN),
|
||
|
err: ErrInvalid,
|
||
|
}, {
|
||
|
in: strL + strR,
|
||
|
dir: bidi.RightToLeft,
|
||
|
n: len(strL),
|
||
|
err: ErrInvalid,
|
||
|
}, {
|
||
|
in: strL + strAL,
|
||
|
dir: bidi.RightToLeft,
|
||
|
n: len(strL),
|
||
|
err: ErrInvalid,
|
||
|
}, {
|
||
|
in: strL + strAN,
|
||
|
dir: bidi.RightToLeft,
|
||
|
n: len(strL),
|
||
|
err: ErrInvalid,
|
||
|
}, {
|
||
|
in: strL + strB,
|
||
|
dir: bidi.LeftToRight,
|
||
|
n: len(strL + strB),
|
||
|
err: ErrInvalid,
|
||
|
}, {
|
||
|
in: strL + strB + strR,
|
||
|
dir: bidi.RightToLeft,
|
||
|
n: len(strL + strB),
|
||
|
err: ErrInvalid,
|
||
|
}, {
|
||
|
in: strL + strS,
|
||
|
dir: bidi.LeftToRight,
|
||
|
n: len(strL + strS),
|
||
|
err: ErrInvalid,
|
||
|
}, {
|
||
|
in: strL + strS + strR,
|
||
|
dir: bidi.RightToLeft,
|
||
|
n: len(strL + strS),
|
||
|
err: ErrInvalid,
|
||
|
}, {
|
||
|
in: strL + strWS,
|
||
|
dir: bidi.LeftToRight,
|
||
|
n: len(strL + strWS),
|
||
|
err: ErrInvalid,
|
||
|
}, {
|
||
|
in: strL + strWS + strR,
|
||
|
dir: bidi.RightToLeft,
|
||
|
n: len(strL + strWS),
|
||
|
err: ErrInvalid,
|
||
|
}},
|
||
|
|
||
|
// Incremental processing.
|
||
|
9: []ruleTest{{
|
||
|
in: "e\u0301", // é
|
||
|
dir: bidi.LeftToRight,
|
||
|
|
||
|
pSrc: 2,
|
||
|
nSrc: 1,
|
||
|
err0: transform.ErrShortSrc,
|
||
|
}, {
|
||
|
in: "e\u1000f", // é
|
||
|
dir: bidi.LeftToRight,
|
||
|
|
||
|
pSrc: 3,
|
||
|
nSrc: 1,
|
||
|
err0: transform.ErrShortSrc,
|
||
|
}, {
|
||
|
// Remain invalid once invalid.
|
||
|
in: strR + "ab",
|
||
|
dir: bidi.RightToLeft,
|
||
|
n: len(strR),
|
||
|
err: ErrInvalid,
|
||
|
|
||
|
pSrc: len(strR) + 1,
|
||
|
nSrc: len(strR),
|
||
|
err0: ErrInvalid,
|
||
|
}, {
|
||
|
// Short destination
|
||
|
in: "abcdefghij",
|
||
|
dir: bidi.LeftToRight,
|
||
|
|
||
|
pSrc: 10,
|
||
|
szDst: 5,
|
||
|
nSrc: 5,
|
||
|
err0: transform.ErrShortDst,
|
||
|
}, {
|
||
|
in: "\U000102f7",
|
||
|
dir: bidi.LeftToRight,
|
||
|
n: len("\U000102f7"),
|
||
|
err: ErrInvalid,
|
||
|
}, {
|
||
|
// Short destination splitting input rune
|
||
|
in: "e\u0301",
|
||
|
dir: bidi.LeftToRight,
|
||
|
|
||
|
pSrc: 3,
|
||
|
szDst: 2,
|
||
|
nSrc: 1,
|
||
|
err0: transform.ErrShortDst,
|
||
|
}, {
|
||
|
// Unicode 10.0.0 IDNA test string.
|
||
|
in: "FAX\u2a77\U0001d186",
|
||
|
dir: bidi.LeftToRight,
|
||
|
n: len("FAX\u2a77\U0001d186"),
|
||
|
err: ErrInvalid,
|
||
|
}, {
|
||
|
in: "\x80\u0660",
|
||
|
dir: bidi.RightToLeft,
|
||
|
n: 0,
|
||
|
err: ErrInvalid,
|
||
|
}},
|
||
|
}
|