Q:

Golang program to demonstrate the regular expression function FindAllString()

belongs to collection: Golang Regular Expressions Programs

YasminRadwan26
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2022-07-04
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In this program, we will find substrings matched based on the specified pattern within the string but here we also specify the limit to get the matched substrings.

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YasminRadwan26
2022-07-04
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Program/Source Code:

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

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

package main

import "fmt"
import "regexp"

func main() {
	result, _ := regexp.Compile("L([A-Z]+)N")

	fmt.Println(result.FindAllString("LAN is Network and it is used to LINK computers and the king of forest is LION", 2))
	fmt.Println(result.FindAllString("LAN is Network and it is used to LINK computers", 1))
}

Output:

[LAN LIN]
[LAN]

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 substring matched based on the specified pattern within the string using the FindAllString() function. The FindAllString() function returns the matched substrings but here we also specify the limit to get the matched substrings. After that, we printed the result on the console screen.

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