semver

var (
	EmptyErr          = errors.New("Empty string cannot be a version")
	NoVErr            = errors.New("No 'v' at start of the version")
	NoMinorOrPatchErr = errors.New("No minor or patch parts of version")
)

var Tool = mtool.T("semver").Func(func(f *mtool.Flags) {
	args := f.Parse()
	if len(args) != 1 {
		f.Usage()
		return
	}

	v, err := ParseVersion(args[0])
	if err != nil {
		log.Fatalf("error: parsing: %s", err)
		return
	}
	fmt.Printf(
		"%d\n%d\n%d\n%s\n%s\n",
		v.Major, v.Minor, v.Patch, v.DetailDelimiter, v.Detail,
	)
}).Desc(
	"get different parts of the version in the SemVer format",
).Usage(
	"<version>",
)