新版IP库管理阶段性提交（未完成）

internal/utils/numberutils/utils.go

@@ -9,3 +9,33 @@ func FormatInt64(value int64) string {
 func FormatInt(value int) string {
 	return strconv.Itoa(value)
 }
+
+func Max[T int | int8 | int16 | int32 | int64 | uint | uint8 | uint16 | uint32 | uint64 | float32 | float64](values ...T) T {
+	if len(values) == 0 {
+		return 0
+	}
+	var max T
+	for index, value := range values {
+		if index == 0 {
+			max = value
+		} else if value > max {
+			max = value
+		}
+	}
+	return max
+}
+
+func Min[T int | int8 | int16 | int32 | int64 | uint | uint8 | uint16 | uint32 | uint64 | float32 | float64](values ...T) T {
+	if len(values) == 0 {
+		return 0
+	}
+	var min T
+	for index, value := range values {
+		if index == 0 {
+			min = value
+		} else if value < min {
+			min = value
+		}
+	}
+	return min
+}

internal/utils/numberutils/utils_test.go

@@ -0,0 +1,20 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved. Official site: https://goedge.cn .
+
+package numberutils_test
+
+import (
+	"github.com/TeaOSLab/EdgeAPI/internal/utils/numberutils"
+	"testing"
+)
+
+func TestMax(t *testing.T) {
+	t.Log(numberutils.Max[int](1, 2, 3))
+	t.Log(numberutils.Max[int32](1, 2, 3))
+	t.Log(numberutils.Max[float32](1.2, 2.3, 3.4))
+}
+
+func TestMin(t *testing.T) {
+	t.Log(numberutils.Min[int](1, 2, 3))
+	t.Log(numberutils.Min[int32](1, 2, 3))
+	t.Log(numberutils.Min[float32](1.2, 2.3, 3.4))
+}

internal/utils/strings.go

@@ -2,7 +2,9 @@
 
 package utils
 
-import "strings"
+import (
+	"strings"
+)
 
 // SplitStrings 分隔字符串
 // 忽略其中为空的片段
@@ -30,3 +32,33 @@ func ContainsStringInsensitive(list []string, search string) bool {
 	}
 	return false
 }
+
+// Similar 计算相似度
+// between 0-1
+func Similar(s1 string, s2 string) float32 {
+	var r1s = []rune(s1)
+	var r2s = []rune(s2)
+	var l1 = len(r1s)
+	var l2 = len(r2s)
+
+	if l1 > l2 {
+		r1s, r2s = r2s, r1s
+	}
+
+	if len(r1s) == 0 {
+		return 0
+	}
+
+	var count = 0
+	for _, r := range r1s {
+		for index, r2 := range r2s {
+			if r == r2 {
+				count++
+				r2s = r2s[index+1:]
+				break
+			}
+		}
+	}
+
+	return (float32(count)/float32(l1) + float32(count)/float32(l2)) / 2
+}

internal/utils/strings_test.go

@@ -1,22 +1,30 @@
 // Copyright 2021 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
 
-package utils
+package utils_test
 
 import (
+	"github.com/TeaOSLab/EdgeAPI/internal/utils"
 	"github.com/iwind/TeaGo/assert"
 	"testing"
 )
 
 func TestSplitStrings(t *testing.T) {
-	t.Log(SplitStrings("a, b, c", ","))
-	t.Log(SplitStrings("a,      b, c, ", ","))
+	t.Log(utils.SplitStrings("a, b, c", ","))
+	t.Log(utils.SplitStrings("a,      b, c, ", ","))
 }
 
 func TestContainsStringInsensitive(t *testing.T) {
 	var a = assert.NewAssertion(t)
-	a.IsTrue(ContainsStringInsensitive([]string{"a", "b", "C"}, "A"))
-	a.IsTrue(ContainsStringInsensitive([]string{"a", "b", "C"}, "b"))
-	a.IsTrue(ContainsStringInsensitive([]string{"a", "b", "C"}, "c"))
-	a.IsFalse(ContainsStringInsensitive([]string{"a", "b", "C"}, "d"))
-
+	a.IsTrue(utils.ContainsStringInsensitive([]string{"a", "b", "C"}, "A"))
+	a.IsTrue(utils.ContainsStringInsensitive([]string{"a", "b", "C"}, "b"))
+	a.IsTrue(utils.ContainsStringInsensitive([]string{"a", "b", "C"}, "c"))
+	a.IsFalse(utils.ContainsStringInsensitive([]string{"a", "b", "C"}, "d"))
+}
+
+func TestSimilar(t *testing.T) {
+	t.Log(utils.Similar("", ""))
+	t.Log(utils.Similar("", "a"))
+	t.Log(utils.Similar("abc", "bcd"))
+	t.Log(utils.Similar("efgj", "hijk"))
+	t.Log(utils.Similar("efgj", "klmn"))
 }