Replacing parts of a string
You can use a regular expression to search through text, replacing parts that match a pattern with other strings.
How to do it...
Use the Replace family of functions to replace the patterns in a string with something else:
package main
import (
"fmt"
"regexp"
)
func main() {
// Find numbers, capture the first digit
re := regexp.MustCompile(`([0-9])[0-9]*`)
fmt.Println(re.ReplaceAllString("This example replaces
numbers with 'x': 1, 100, 500.", "x"))
// This example replaces numbers with 'x': x, x, x.
fmt.Println(re.ReplaceAllString("This example replaces all
numbers with their first digits: 1, 100, 500...
