Q:

Golang program to demonstrate the regular expression function FindString()

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 substring matched based on the specified pattern within the string and print the matched substrings on the console screen.

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YasminRadwan26
2022-07-04
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Program/Source Code:

The source code to demonstrate the regular expression function FindString() 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 FindString()

package main

import "fmt"
import "regexp"

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

	fmt.Println(result.FindString("LAN Network"))
	fmt.Println(result.FindString("The king of forest is LION"))
	fmt.Println(result.FindString("lan network"))
}

Output:

LAN
LION

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 FindString() function and print the matched substrings on the console screen.

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