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Golang program to demonstrate the regular expression function ReplaceAllString()

Here, we are going to demonstrate the regular expression function ReplaceAllString() in Golang (Go Language).
Submitted by Nidhi, on April 16, 2021 [Last updated : March 04, 2023]

Regular Expression Function ReplaceAllString() in Golang

Problem Solution:

In this program, we will find a specified pattern within the specified string and replace the matching pattern with the given string.

Program/Source Code:

The source code to demonstrate the regular expression function ReplaceAllString() is given below. The given program is compiled and executed on the ubuntu 18.04 operating system successfully.

Golang code to demonstrate the example of regular expression function ReplaceAllString()

// Golang program to demonstrate the regular expression
// function ReplaceAllString()

package main

import "fmt"
import "regexp"

func main() {
	result, _ := regexp.Compile("L([A-Z]+)N")
	fmt.Println(result.ReplaceAllString("LAN is Network and it is used to LINK computers", "MAN"))
}

Output:

MAN is Network and it is used to MANK computers

Explanation:

In the above program, we declare the package main. The main package is used to tell the Go language compiler that the package must be compiled and produced the executable file. Here, we imported the fmt, regexp packages then we can use a function related to the fmt and regexp package.

In the main() function, we found a specified string pattern and replace it with a given string within the string using the ReplaceAllString() function. After that, we printed the result on the console screen.

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