package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)^\d+\s*([+-]\s*\d+\s*)*=\s*\d+$`)
var str = `2 2 + 2
2 +2=4
3 - 2=1
2 4-2=6
2 + 2 + 4 +6 -3=2
2=2`
for i, match := range re.FindAllString(str, -1) {
fmt.Println(match, "found at index", i)
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Golang, please visit: https://golang.org/pkg/regexp/