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feat(Go-Tool)：2021/03/11: 新增Kr、Shift and/or字符串匹配算法

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Huangzj
2021-03-11 15:04:41 +08:00
parent 351df675bd
commit ed71f9b607
7 changed files with 182 additions and 5 deletions
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.readme_images/B5F8E89A-CE33-4a78-A461-E9014B10A3D9.png
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readme.md
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@@ -72,6 +72,8 @@
2021/03/02: 新增字符串匹配 暴力匹配、KMP匹配、SunDay匹配算法
2021/03/11: 新增Kr、Shift and/or字符串匹配算法
# 修复日志
2020/11/23：修改项目案例(按照一定规则对一组数据进行排序分组)
@@ -102,3 +104,5 @@
- 通过 go mod vendor 切换到vendor管理
- 在文件中import引用对应的路径
- vendor加载对应的包
![](.readme_images/B5F8E89A-CE33-4a78-A461-E9014B10A3D9.png)
util/stringMatch/HorspoolMatch_test.go
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@@ -14,10 +14,10 @@ import (
func TestHorspool(t *testing.T) {
fmt.Println("该子串的位置为：", Horspool("abcdefghijk", "abcd")) //输出0
fmt.Println("该子串的位置为：", Horspool("abcdefghijk", "bcd")) //输出1
fmt.Println("该子串的位置为：", Horspool("abcdefghijk", "fgh")) //输出6
fmt.Println("该子串的位置为：", Horspool("abcdefghijk", "hijk")) //输出8
fmt.Println("该子串的位置为：", Horspool("abcdefghijk", "jk")) //输出10
fmt.Println("该子串的位置为：", Horspool("abcdefghijk", "k")) //输出11
fmt.Println("该子串的位置为：", Horspool("abcdefghijk", "fgh")) //输出5
fmt.Println("该子串的位置为：", Horspool("abcdefghijk", "hijk")) //输出7
fmt.Println("该子串的位置为：", Horspool("abcdefghijk", "jk")) //输出9
fmt.Println("该子串的位置为：", Horspool("abcdefghijk", "k")) //输出10
fmt.Println("该子串的位置为：", Horspool("abcdefghijk", "kbz")) //输出-1
fmt.Println("该子串的位置为：", Horspool("abcdefghijk", "kdasdsad")) //输出-1
util/stringMatch/KarpRabinMatch.go
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@@ -0,0 +1,28 @@
/*
* @Author : huangzj
* @Time : 2021/3/5 13:17
* @Description：
*/
package stringMatch
func KarpRabinMatch(allString, modeString string) int {
hashMode := hash(modeString)
for i := 0; i < len(allString)-len(modeString)+1; i++ {
hashKey := hash(allString[i : i+len(modeString)+1])
if hashMode == hashKey {
for j := 0; j < len(modeString); j++ {
if allString[i+j] != modeString[j] {
break
}
}
return i
}
}
return -1
}
func hash(s string) int {
return 1
}
util/stringMatch/KarpRabinMatch_test.go
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@@ -0,0 +1,25 @@
/*
* @Author : huangzj
* @Time : 2021/3/5 13:25
* @Description：
*/
package stringMatch
import (
"fmt"
"testing"
)
func TestKarpRabinMatch(t *testing.T) {
fmt.Println("该子串的位置为：", KarpRabinMatch("abcdefghijk", "abcd")) //输出0
fmt.Println("该子串的位置为：", KarpRabinMatch("abcdefghijk", "bcd")) //输出1
fmt.Println("该子串的位置为：", KarpRabinMatch("abcdefghijk", "fgh")) //输出5
fmt.Println("该子串的位置为：", KarpRabinMatch("abcdefghijk", "hijk")) //输出7
fmt.Println("该子串的位置为：", KarpRabinMatch("abcdefghijk", "jk")) //输出9
fmt.Println("该子串的位置为：", KarpRabinMatch("abcdefghijk", "k")) //输出10
fmt.Println("该子串的位置为：", KarpRabinMatch("abcdefghijk", "kbz")) //输出-1
fmt.Println("该子串的位置为：", KarpRabinMatch("abcdefghijk", "kdasdsad")) //输出-1
fmt.Println("该子串的位置为：", KarpRabinMatch("abcdefghijk", "dsadsa")) //输出-1
}
util/stringMatch/ShiftAndMatch.go
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@@ -0,0 +1,78 @@
/*
* @Author : huangzj
* @Time : 2021/3/8 14:42
* @Description：
*/
package stringMatch
import "fmt"
func ShiftAndMatch(allString, modeString string) int {
if len(modeString) > 32 {
panic("暂只支持32位大小")
}
bitap := GenerateTable(modeString)
fmt.Println("bitap的二进制：")
for i := 0; i < len(modeString); i++ {
fmt.Println(fmt.Sprintf("当前字符:%c,对应二进制:%08b", modeString[i], bitap[modeString[i]-'a']))
}
fmt.Println("")
var status int
for i := 0; i < len(allString); i++ {
status = ((status << 1) | 1) & bitap[allString[i]-'a']
fmt.Println(fmt.Sprintf("当前字符：%c,对应的二进制结果：%08b", allString[i], status))
if status&(1<<(len(modeString)-1)) > 0 {
return i - len(modeString) + 1
}
}
return -1
}
func GenerateTable(modeString string) []int {
bitap := make([]int, 32)
for i := 0; i < len(modeString); i++ {
bitap[modeString[i]-'a'] |= 1 << i
}
return bitap
}
func ShiftOrMatch(allString, modeString string) int {
if len(modeString) > 32 {
panic("暂只支持32位大小")
}
bitap := make([]int, 32)
for i := 0; i < 32; i++ {
bitap[i] = ^0
}
var shift = 1
for i := 0; i < len(modeString); i++ {
bitap[modeString[i]-'a'] &= ^shift
shift <<= 1
}
fmt.Println("bitap的二进制：")
for i := 0; i < len(modeString); i++ {
fmt.Println(fmt.Sprintf("当前字符:%c,对应二进制:%08b", modeString[i], uint32(bitap[modeString[i]-'a'])))
}
fmt.Println()
status := ^0
mask := ^(1 << (len(modeString) - 1))
fmt.Println(fmt.Sprintf("mask:%08b", uint32(mask)))
for i := 0; i < len(allString); i++ {
status = (status << 1) | bitap[allString[i]-'a']
fmt.Println(fmt.Sprintf("当前字符：%c,对应的二进制结果：%08b", allString[i], uint32(status)))
if ^(status | mask) > 0 {
return i - len(modeString) + 1
}
}
return -1
}
util/stringMatch/ShiftAndMatch_test.go
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@@ -0,0 +1,42 @@
/*
* @Author : huangzj
* @Time : 2021/3/8 14:51
* @Description：
*/
package stringMatch
import (
"fmt"
"testing"
)
func TestShiftAndMatch(t *testing.T) {
//fmt.Println("该子串的位置为：", ShiftAndMatch("abcdefghijk", "abcd")) //输出0
//fmt.Println("该子串的位置为：", ShiftAndMatch("abcdefghijk", "bcd")) //输出1
//fmt.Println("该子串的位置为：", ShiftAndMatch("abcdefghijk", "fgh")) //输出5
//fmt.Println("该子串的位置为：", ShiftAndMatch("abcdefghijk", "hijk")) //输出7
//fmt.Println("该子串的位置为：", ShiftAndMatch("abcdefghijk", "jk")) //输出9
//fmt.Println("该子串的位置为：", ShiftAndMatch("abcdefghijk", "k")) //输出10
//
//fmt.Println("该子串的位置为：", ShiftAndMatch("abcdefghijk", "kbz")) //输出-1
//fmt.Println("该子串的位置为：", ShiftAndMatch("abcdefghijk", "kdasdsad")) //输出-1
//fmt.Println("该子串的位置为：", ShiftAndMatch("abcdefghijk", "dsadsa")) //输出-1
fmt.Println("该子串的位置为：", ShiftAndMatch("cbcbcbaefd", "cbcba"))
}
func TestShiftOrMatch(t *testing.T) {
//fmt.Println("该子串的位置为：", ShiftOrMatch("abcdefghijk", "abcd")) //输出0
//fmt.Println("该子串的位置为：", ShiftOrMatch("abcdefghijk", "bcd")) //输出1
//fmt.Println("该子串的位置为：", ShiftOrMatch("abcdefghijk", "fgh")) //输出5
//fmt.Println("该子串的位置为：", ShiftOrMatch("abcdefghijk", "hijk")) //输出7
//fmt.Println("该子串的位置为：", ShiftOrMatch("abcdefghijk", "jk")) //输出9
//fmt.Println("该子串的位置为：", ShiftOrMatch("abcdefghijk", "k")) //输出10
//
//fmt.Println("该子串的位置为：", ShiftOrMatch("abcdefghijk", "kbz")) //输出-1
//fmt.Println("该子串的位置为：", ShiftOrMatch("abcdefghijk", "kdasdsad")) //输出-1
//fmt.Println("该子串的位置为：", ShiftOrMatch("abcdefghijk", "dsadsa")) //输出-1
fmt.Println("该子串的位置为：", ShiftOrMatch("cbcbcbaefd", "cbcba"))
}