Golang : Underscore string example

Problem:

Your program needs to process data with whitespaces and quotes. You need a quick way to remove underscore characters from a string's start and end positions. You also want to replace white spaces and quotes to underscore "_".

How to do that?

Solution:

Here you go!

 package main

 import (
 "fmt"
 "regexp"
 "strings"
 )

 func UnderScoreString(str string) string {

 // convert every letter to lower case
 newStr := strings.ToLower(str)

 // convert all spaces/tab to underscore
 regExp := regexp.MustCompile("[[:space:][:blank:]]")
 newStrByte := regExp.ReplaceAll([]byte(newStr), []byte("_"))

 regExp = regexp.MustCompile("`[^a-z0-9]`i")
 newStrByte = regExp.ReplaceAll(newStrByte, []byte("_"))

 regExp = regexp.MustCompile("[!/']")
 newStrByte = regExp.ReplaceAll(newStrByte, []byte("_"))

 // and remove underscore from beginning and ending

 newStr = strings.TrimPrefix(string(newStrByte), "_")
 newStr = strings.TrimSuffix(newStr, "_")

 return newStr
 }

 func main() {
 test := "That is Peter's House"
 fmt.Println(UnderScoreString(test))

 test1 := "Peter's House!"
 fmt.Println(UnderScoreString(test1))

 test2 := "_88 is Peter's House number_"
 fmt.Println(UnderScoreString(test2))

 }

Output :

that_is_peter_s_house

peter_s_house

88_is_peter_s_house_number

Reference:

https://www.socketloop.com/tutorials/golang-format-strings-to-seo-friendly-url-example