How to Split Strings Using Regular Expressions in Go?

Splitting Strings with Regular Expressions in Go

In Go, you may encounter the need to split a string based on a specific pattern using regular expressions. This approach offers flexibility and accuracy in slicing your strings.

Using regexp.Split

The regexp.Split function provides a convenient way to split a string into a slice of strings. It takes two arguments: the regular expression pattern as a delimiter and the string to be split. The following code snippet illustrates how to use regexp.Split:

package main

import (
    "fmt"
    "regexp"
)

func main() {
    // Compile the regular expression pattern
    re := regexp.MustCompile("[0-9]+")
    // Specify the string to be split
    txt := "Have9834a908123great10891819081day!"

    // Split the string into a slice using the regular expression
    split := re.Split(txt, -1)

    set := []string{}
    // Iterate over the split strings and append them to a new slice
    for i := range split {
        set = append(set, split[i])
    }

    fmt.Println(set) // ["Have", "a", "great", "day!"]
}

In this example, we use a regular expression pattern that matches any sequence of digits. As a result, the original string is split into four parts: "Have", "a", "great", and "day!".

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