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package api
import (
"math/big"
"errors"
"github.com/NebulousLabs/Sia/crypto"
"github.com/NebulousLabs/Sia/types"
)
// scanAmount scans a types.Currency from a string.
func scanAmount(amount string) (types.Currency, bool) {
// use SetString manually to ensure that amount does not contain
// multiple values, which would confuse fmt.Scan
i, ok := new(big.Int).SetString(amount, 10)
if !ok {
return types.Currency{}, ok
}
return types.NewCurrency(i), true
}
// scanAddress scans a types.UnlockHash from a string.
func scanAddress(addrStr string) (addr types.UnlockHash, err error) {
err = addr.LoadString(addrStr)
if err != nil {
return types.UnlockHash{}, err
}
return addr, nil
}
// scanHash scans a crypto.Hash from a string.
func scanHash(s string) (h crypto.Hash, err error) {
err = h.LoadString(s)
if err != nil {
return crypto.Hash{}, err
}
return h, nil
}
// scanBool converts "true" and "false" strings to their respective
// boolean value and returns an error if conversion is not possible.
func scanBool(param string) (bool, error) {
if param == "true" {
return true, nil
} else if param == "false" || len(param) == 0 {
return false, nil
}
return false, errors.New("could not decode boolean: value was not true or false")
}
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