func (n *NestedData) GetI(s ...string) (int64, bool) {
r, ok := n.Get(s...)
if !ok {
return 0, false
}
val, err := numcon.Int64(r)
if err != nil {
return 0, false
}
return val, true
}
func inter(dat interface{}, s Scheme) (interface{}, error) {
var val int64
var err error
switch v := dat.(type) {
case string:
val, err = strconv.ParseInt(v, 10, 64)
if err != nil {
return nil, err
}
default:
val, err = numcon.Int64(v)
if err != nil {
return nil, err
}
}
if s.Min > val {
return nil, fmt.Errorf("Int value is too small.")
}
if s.Max != 0 && s.Max < val {
return nil, fmt.Errorf("Int value is too large.")
}
return val, nil
}
func toScheme(a interface{}) (Scheme, error) {
empty := Scheme{}
s := Scheme{}
s.Specific = map[string]interface{}{}
ai, err := numcon.Int(a)
if err == nil && ai == 1 {
s.Type = "string"
return s, nil
}
am, ok := a.(map[string]interface{})
if !ok {
return empty, fmt.Errorf("Can't interpret scheme.")
}
s.SliceMin = -1 // 0 is not good as a default value since it can be a legal one too.
s.SliceMax = -1
for i, v := range am {
switch i {
case "must":
s.Must, ok = v.(bool)
if !ok {
return empty, fmt.Errorf("Bad scheme: must should be a slice.")
}
case "type":
s.Type, ok = v.(string)
if !ok {
return empty, fmt.Errorf("Bad scheme: type should be a string.")
}
case "slice":
s.Slice, ok = v.(bool)
if !ok {
return empty, fmt.Errorf("Bad scheme: slice should be a bool.")
}
case "sliceMin":
s.SliceMin, err = numcon.Int(v)
if err != nil {
return empty, fmt.Errorf("Bad scheme: sliceMin should be int compatible.")
}
case "sliceMax":
s.SliceMax, err = numcon.Int(v)
if err != nil {
return empty, fmt.Errorf("Bad scheme: sliceMax should be int compatible.")
}
case "allOrNothing":
s.AllOrNothing, ok = v.(bool)
if !ok {
return empty, fmt.Errorf("Bad scheme: allOrNothing should be a bool.")
}
case "min":
s.Min, err = numcon.Int64(v)
if err != nil {
return empty, fmt.Errorf("Bad scheme: min should be int64 compatible.")
}
case "max":
s.Max, err = numcon.Int64(v)
if err != nil {
return empty, fmt.Errorf("Bad scheme: max should be int64 compatible.")
}
case "regexp":
s.Regexp, ok = v.(string)
if !ok {
return empty, fmt.Errorf("Bad scheme: regexp should be a string.")
}
case "ignore":
s.Ignore, ok = v.(bool)
if !ok {
return empty, fmt.Errorf("Bad scheme: ignore should be a string.")
}
default:
s.Specific[i] = v
}
}
return s, nil
}