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package internal
import "reflect"
func ToLower(s string) string {
if isLower(s) {
return s
}
b := make([]byte, len(s))
for i := range b {
c := s[i]
if c >= 'A' && c <= 'Z' {
c += 'a' - 'A'
}
b[i] = c
}
return BytesToString(b)
}
func isLower(s string) bool {
for i := 0; i < len(s); i++ {
c := s[i]
if c >= 'A' && c <= 'Z' {
return false
}
}
return true
}
func SliceNextElem(v reflect.Value) reflect.Value {
if v.Len() < v.Cap() {
v.Set(v.Slice(0, v.Len()+1))
return v.Index(v.Len() - 1)
}
elemType := v.Type().Elem()
if elemType.Kind() == reflect.Ptr {
elem := reflect.New(elemType.Elem())
v.Set(reflect.Append(v, elem))
return elem.Elem()
}
v.Set(reflect.Append(v, reflect.Zero(elemType)))
return v.Index(v.Len() - 1)
}
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