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WAF操作符增加包含任一单词、包含所有单词、不包含任一单词
This commit is contained in:
刘祥超
110
internal/utils/runes/runes.go
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110
internal/utils/runes/runes.go
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// Copyright 2023 GoEdge CDN goedge.cdn@gmail.com. All rights reserved. Official site: https://goedge.cn .
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package runes
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// ContainsAnyWord 检查字符串是否包含任一单词
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func ContainsAnyWord(s string, words []string, isCaseInsensitive bool) bool {
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var allRunes = []rune(s)
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if len(allRunes) == 0 || len(words) == 0 {
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return false
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}
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for _, word := range words {
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if ContainsWordRunes(allRunes, []rune(word), isCaseInsensitive) {
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return true
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}
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}
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return false
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}
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// ContainsAllWords 检查字符串是否包含所有单词
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func ContainsAllWords(s string, words []string, isCaseInsensitive bool) bool {
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var allRunes = []rune(s)
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if len(allRunes) == 0 || len(words) == 0 {
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return false
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}
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for _, word := range words {
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if !ContainsWordRunes(allRunes, []rune(word), isCaseInsensitive) {
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return false
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}
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}
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return true
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}
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// ContainsWordRunes 检查字符列表是否包含某个单词子字符列表
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func ContainsWordRunes(allRunes []rune, subRunes []rune, isCaseInsensitive bool) bool {
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var l = len(subRunes)
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if l == 0 {
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return false
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}
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var al = len(allRunes)
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for index, r := range allRunes {
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if EqualRune(r, subRunes[0], isCaseInsensitive) && (index == 0 || !isChar(allRunes[index-1]) /**boundary check **/) {
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var found = true
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if l > 1 {
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for i := 1; i < l; i++ {
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var subIndex = index + i
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if subIndex > al-1 || !EqualRune(allRunes[subIndex], subRunes[i], isCaseInsensitive) {
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found = false
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break
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}
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}
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}
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// check after charset
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if found && (al <= index+l || !isChar(allRunes[index+l]) /**boundary check **/) {
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return true
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}
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}
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}
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return false
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}
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// ContainsSubRunes 检查字符列表是否包含某个子子字符列表
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// 与 ContainsWordRunes 不同，这里不需要检查边界符号
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func ContainsSubRunes(allRunes []rune, subRunes []rune, isCaseInsensitive bool) bool {
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var l = len(subRunes)
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if l == 0 {
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return false
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}
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var al = len(allRunes)
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for index, r := range allRunes {
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if EqualRune(r, subRunes[0], isCaseInsensitive) {
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var found = true
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if l > 1 {
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for i := 1; i < l; i++ {
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var subIndex = index + i
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if subIndex > al-1 || !EqualRune(allRunes[subIndex], subRunes[i], isCaseInsensitive) {
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found = false
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break
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}
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}
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}
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// check after charset
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if found {
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return true
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}
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}
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}
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return false
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}
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// EqualRune 判断两个rune是否相同
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func EqualRune(r1 rune, r2 rune, isCaseInsensitive bool) bool {
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const d = 'a' - 'A'
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return r1 == r2 ||
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(isCaseInsensitive && r1 >= 'a' && r1 <= 'z' && r1-r2 == d) ||
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(isCaseInsensitive && r1 >= 'A' && r1 <= 'Z' && r1-r2 == -d)
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}
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func isChar(r rune) bool {
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return r >= 'a' && r <= 'z' || r >= 'A' && r <= 'Z' || r >= '0' && r <= '9'
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}
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97
internal/utils/runes/runes_test.go
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97
internal/utils/runes/runes_test.go
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@@ -0,0 +1,97 @@
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// Copyright 2023 GoEdge CDN goedge.cdn@gmail.com. All rights reserved. Official site: https://goedge.cn .
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package runes_test
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import (
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"github.com/TeaOSLab/EdgeNode/internal/utils/runes"
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"github.com/iwind/TeaGo/assert"
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"runtime"
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"testing"
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)
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func TestContainsAllWords(t *testing.T) {
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var a = assert.NewAssertion(t)
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a.IsTrue(runes.ContainsAllWords("How are you?", []string{"are", "you"}, false))
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a.IsFalse(runes.ContainsAllWords("How are you?", []string{"how", "are", "you"}, false))
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a.IsTrue(runes.ContainsAllWords("How are you?", []string{"how", "are", "you"}, true))
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}
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func TestContainsAnyWord(t *testing.T) {
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var a = assert.NewAssertion(t)
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a.IsTrue(runes.ContainsAnyWord("How are you?", []string{"are", "you"}, false))
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a.IsTrue(runes.ContainsAnyWord("How are you?", []string{"are", "you", "ok"}, false))
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a.IsFalse(runes.ContainsAnyWord("How are you?", []string{"how", "ok"}, false))
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a.IsTrue(runes.ContainsAnyWord("How are you?", []string{"how"}, true))
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a.IsTrue(runes.ContainsAnyWord("How are you?", []string{"how", "ok"}, true))
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}
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func TestContainsWordRunes(t *testing.T) {
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var a = assert.NewAssertion(t)
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a.IsFalse(runes.ContainsWordRunes([]rune(""), []rune("How"), true))
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a.IsFalse(runes.ContainsWordRunes([]rune("How are you?"), []rune(""), true))
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a.IsTrue(runes.ContainsWordRunes([]rune("How are you?"), []rune("How"), true))
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a.IsFalse(runes.ContainsWordRunes([]rune("How are you?"), []rune("how"), false))
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a.IsTrue(runes.ContainsWordRunes([]rune("How are you?"), []rune("you"), false))
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a.IsTrue(runes.ContainsWordRunes([]rune("How are you?"), []rune("are"), false))
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a.IsFalse(runes.ContainsWordRunes([]rune("How are you?"), []rune("re"), false))
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a.IsTrue(runes.ContainsWordRunes([]rune("How are you w?"), []rune("w"), false))
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a.IsTrue(runes.ContainsWordRunes([]rune("w How are you?"), []rune("w"), false))
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a.IsTrue(runes.ContainsWordRunes([]rune("How are w you?"), []rune("w"), false))
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a.IsTrue(runes.ContainsWordRunes([]rune("How are how you?"), []rune("how"), false))
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a.IsTrue(runes.ContainsWordRunes([]rune("How are you?"), []rune("how"), true))
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a.IsTrue(runes.ContainsWordRunes([]rune("How are you?"), []rune("ARE"), true))
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a.IsTrue(runes.ContainsWordRunes([]rune("How are you"), []rune("you"), false))
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a.IsTrue(runes.ContainsWordRunes([]rune("How are you"), []rune("YOU"), true))
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a.IsTrue(runes.ContainsWordRunes([]rune("How are you?"), []rune("YOU"), true))
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a.IsFalse(runes.ContainsWordRunes([]rune("How are you1?"), []rune("YOU"), true))
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a.IsFalse(runes.ContainsWordRunes([]rune("How are you1?"), []rune("YOU YOU YOU YOU YOU YOU YOU"), true))
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}
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func TestContainsSubRunes(t *testing.T) {
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var a = assert.NewAssertion(t)
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a.IsFalse(runes.ContainsSubRunes([]rune(""), []rune("How"), true))
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a.IsFalse(runes.ContainsSubRunes([]rune("How are you?"), []rune(""), true))
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a.IsTrue(runes.ContainsSubRunes([]rune("How are you1?"), []rune("YOU"), true))
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a.IsTrue(runes.ContainsSubRunes([]rune("How are you1?"), []rune("ow"), false))
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a.IsTrue(runes.ContainsSubRunes([]rune("How are you1?"), []rune("H"), false))
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a.IsTrue(runes.ContainsSubRunes([]rune("How are you1?"), []rune("How"), false))
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a.IsTrue(runes.ContainsSubRunes([]rune("How are you doing"), []rune("oi"), false))
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a.IsTrue(runes.ContainsSubRunes([]rune("How are you doing"), []rune("g"), false))
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a.IsTrue(runes.ContainsSubRunes([]rune("How are you doing"), []rune("ing"), false))
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a.IsFalse(runes.ContainsSubRunes([]rune("How are you doing"), []rune("int"), false))
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}
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func TestEqualRune(t *testing.T) {
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var a = assert.NewAssertion(t)
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a.IsTrue(runes.EqualRune('a', 'a', false))
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a.IsTrue(runes.EqualRune('a', 'a', true))
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a.IsFalse(runes.EqualRune('a', 'A', false))
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a.IsTrue(runes.EqualRune('a', 'A', true))
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a.IsFalse(runes.EqualRune('c', 'C', false))
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a.IsTrue(runes.EqualRune('c', 'C', true))
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a.IsTrue(runes.EqualRune('C', 'C', true))
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a.IsTrue(runes.EqualRune('C', 'c', true))
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a.IsTrue(runes.EqualRune('Z', 'z', true))
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a.IsTrue(runes.EqualRune('z', 'Z', true))
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a.IsFalse(runes.EqualRune('z', 'z'+('a'-'A'), true))
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}
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func BenchmarkContainsWordRunes(b *testing.B) {
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runtime.GOMAXPROCS(4)
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b.RunParallel(func(pb *testing.PB) {
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for pb.Next() {
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_ = runes.ContainsWordRunes([]rune("How are you"), []rune("YOU"), true)
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}
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})
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}
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func BenchmarkContainsSubRunes(b *testing.B) {
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runtime.GOMAXPROCS(4)
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b.RunParallel(func(pb *testing.PB) {
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for pb.Next() {
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_ = runes.ContainsSubRunes([]rune("How are you"), []rune("YOU"), true)
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}
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})
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}
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