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string.go
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/
string.go
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// 字符串相关方法封装
package goutils
import (
"crypto/md5"
"encoding/hex"
"fmt"
"math"
"regexp"
"strings"
"github.com/antlabs/strsim"
)
// RemoveAllWhitespace 删除字符串中所有的空白符
func RemoveAllWhitespace(s string) string {
s = strings.Replace(s, "\t", "", -1)
s = strings.Replace(s, "\n", "", -1)
s = strings.Replace(s, " ", "", -1)
return s
}
// ReverseString 翻转字符串
func ReverseString(s string) string {
r := []rune(s)
for i, j := 0, len(r)-1; i < len(r)/2; i, j = i+1, j-1 {
r[i], r[j] = r[j], r[i]
}
return string(r)
}
// RemoveDuplicateWhitespace 删除字符串中重复的空白字符为单个空白字符
// trim: 是否去掉首位空白
func RemoveDuplicateWhitespace(s string, trim bool) string {
ws, err := regexp.Compile(`\s+`)
if err != nil {
return s
}
s = ws.ReplaceAllString(s, " ")
if trim {
s = strings.TrimSpace(s)
}
return s
}
// StrSimilarity 提供不同的算法检测文本相似度
func StrSimilarity(s1, s2 string, algorithm string) float64 {
// strsim: 完全相同返回 1,完全不同返回 0
switch strings.ToLower(algorithm) {
case "levenshtein":
return strsim.Compare(s1, s2)
case "dice":
return strsim.Compare(s1, s2, strsim.DiceCoefficient())
case "jaro":
return strsim.Compare(s1, s2, strsim.Jaro())
case "hamming":
return strsim.Compare(s1, s2, strsim.Hamming())
}
return strsim.Compare(s1, s2, strsim.Hamming())
}
// YiWanString 将数字转换为 亿/万
func YiWanString(num float64) string {
YI := float64(100000000.0)
WAN := float64(10000.0)
yi := num / YI
if math.Abs(yi) >= 1 {
return fmt.Sprintf("%.2f 亿", yi)
}
wan := num / WAN
if math.Abs(wan) >= 1 {
return fmt.Sprintf("%.2f 万", wan)
}
return fmt.Sprint(num)
}
// SplitStringFields 将传入字符串分割为slice
func SplitStringFields(s string) []string {
return regexp.MustCompile("[\\/\\:\\,\\;\\.\\s\\-\\|\\#\\$\\%\\&\\+\\=\\?]+").Split(s, -1)
}
// MD5 string md5
func MD5(v string) string {
d := []byte(v)
m := md5.New()
m.Write(d)
return hex.EncodeToString(m.Sum(nil))
}