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pkg/utility/biginthelper/bighelper.go

@@ -0,0 +1,35 @@
+package biginthelper
+
+import (
+	"math/big"
+	"regexp"
+	"strconv"
+)
+
+// ParseBigInt 将字符串转换为 big.Int
+func ParseBigInt(value string) *big.Int {
+	bi := new(big.Int)
+	i, ok := bi.SetString(value, 10)
+	if !ok {
+		return bi
+	}
+	return i
+}
+
+// IntToHex convert int to hexadecimal representation
+// int64转换为16进制字符串
+func IntToHex(i int64) string {
+	return strconv.FormatInt(i, 16)
+}
+
+// BigToHex 将bigint转化为16进制带 0x 的字符串
+func BigToHex(bigInt big.Int) string {
+	return "0x" + IntToHex(bigInt.Int64())
+}
+
+// CheckIsAddress Check is a eth Address
+// 检查是否是以太坊地址 正则匹配
+func CheckIsAddress(addr string) bool {
+	re := regexp.MustCompile("^0x[0-9a-fA-F]{40}$")
+	return re.MatchString(addr)
+}