func parse(args []string) (fmt.MessageInput, error) {
if len(args) != 0 {
return nil, fmt.NewError(fmt.MalformedFormatSpecificationErrorResourceKey, args)
}
return fmt.SimpleMessageInput("%#v"), nil
}
func parse(args []string) (fmt.MessageInput, error) {
b := new(bytes.Buffer)
var length string
var sign, pad bool
for _, str := range args {
lengthVal, err := strconv.Atoi(str)
switch {
case str == PadZero:
pad = true
case str == Sign:
sign = true
case err == nil && lengthVal > 0:
length = str
default:
return nil, fmt.NewError(fmt.MalformedFormatSpecificationErrorResourceKey, Format, str)
}
}
b.WriteRune('%')
if sign {
b.WriteRune('+')
}
if pad {
b.WriteRune('0')
}
if length != "" {
b.WriteString(length)
}
b.WriteRune('d')
return fmt.SimpleMessageInput(b.String()), nil
}