plugeth/ethutil/common.go

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package ethutil
import (
"fmt"
"math/big"
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"runtime"
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)
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func IsWindows() bool {
return runtime.GOOS == "windows"
}
func WindonizePath(path string) string {
if string(path[0]) == "/" && IsWindows() {
path = path[1:]
}
return path
}
// The different number of units
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var (
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Douglas = BigPow(10, 42)
Einstein = BigPow(10, 21)
Ether = BigPow(10, 18)
Finney = BigPow(10, 15)
Szabo = BigPow(10, 12)
Shannon = BigPow(10, 9)
Babbage = BigPow(10, 6)
Ada = BigPow(10, 3)
Wei = big.NewInt(1)
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)
//
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// Currency to string
// Returns a string representing a human readable format
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func CurrencyToString(num *big.Int) string {
switch {
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case num.Cmp(Douglas) >= 0:
return fmt.Sprintf("%v Douglas", new(big.Int).Div(num, Douglas))
case num.Cmp(Einstein) >= 0:
return fmt.Sprintf("%v Einstein", new(big.Int).Div(num, Einstein))
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case num.Cmp(Ether) >= 0:
return fmt.Sprintf("%v Ether", new(big.Int).Div(num, Ether))
case num.Cmp(Finney) >= 0:
return fmt.Sprintf("%v Finney", new(big.Int).Div(num, Finney))
case num.Cmp(Szabo) >= 0:
return fmt.Sprintf("%v Szabo", new(big.Int).Div(num, Szabo))
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case num.Cmp(Shannon) >= 0:
return fmt.Sprintf("%v Shannon", new(big.Int).Div(num, Shannon))
case num.Cmp(Babbage) >= 0:
return fmt.Sprintf("%v Babbage", new(big.Int).Div(num, Babbage))
case num.Cmp(Ada) >= 0:
return fmt.Sprintf("%v Ada", new(big.Int).Div(num, Ada))
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}
return fmt.Sprintf("%v Wei", num)
}
// Common big integers often used
var (
Big1 = big.NewInt(1)
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Big2 = big.NewInt(2)
Big0 = big.NewInt(0)
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Big32 = big.NewInt(32)
Big256 = big.NewInt(0xff)
)