iso8583-data-element-notation.go

package main

//https://play.golang.org/p/_iu24fTdt57
import (
	"fmt"
	"regexp"
)

func main() {
	str := `an..19` //https://en.wikipedia.org/wiki/ISO_8583#Examples_3
	r := regexp.MustCompile(`^([a-z]+)(\.+)?([0-9]+)$`)
	res := r.FindStringSubmatch(str)
	dataType := res[1]
	dataLengthNotation := res[2]
	dataLength := res[3]
	fmt.Println(" - dataType:", dataType, "\n - length notation:", dataLengthNotation, "\n - dataLength:", dataLength)
}