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common.go
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common.go
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package filter
import (
"errors"
"strings"
"unsafe"
)
// 默认的错误文本
var DefaultErrorText = "数据处理失败"
// 批处理
func Batch(errs ...error) error {
for k := range errs {
if errs[k] != nil {
return errs[k]
}
}
return nil
}
// 封装错误信息
// nolint:unparam
func wrapError(name, err string, custom ...string) error {
var body strings.Builder
body.WriteString(name)
body.WriteString(": ")
// nolint:gocritic
if len(custom) > 0 && custom[0] != "" {
body.WriteString(custom[0])
} else if err != "" {
body.WriteString(err)
} else {
body.WriteString(DefaultErrorText)
}
return errors.New(body.String())
}
// 中国手机号码前缀
var chinaMobilePrefix = []uint8{
// 移动
139, 138, 137, 136, 135, 134, 147, 150, 151, 152, 157, 158, 159, 165, 178, 182, 183, 184, 187, 188, 198,
// 联通
130, 131, 132, 155, 156, 166, 167, 185, 186, 145, 175, 176,
// 电信
133, 153, 162, 177, 173, 180, 181, 189, 191, 199,
// 虚拟运营商
170, 171,
}
// []byte转string
func bytesToStr(value []byte) string {
return *(*string)(unsafe.Pointer(&value)) // nolint
}
// string转[]byte
func strToBytes(s string) []byte {
x := (*[2]uintptr)(unsafe.Pointer(&s)) // nolint
h := [3]uintptr{x[0], x[1], x[1]}
return *(*[]byte)(unsafe.Pointer(&h)) // nolint
}
// 用于校验uuid
var xvalues = [256]byte{
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 255, 255, 255, 255, 255, 255,
255, 10, 11, 12, 13, 14, 15, 255, 255, 255, 255, 255, 255, 255, 255, 255,
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
255, 10, 11, 12, 13, 14, 15, 255, 255, 255, 255, 255, 255, 255, 255, 255,
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
}
// 用于校验uuid
func xtob(x1, x2 byte) (byte, bool) {
b1 := xvalues[x1]
b2 := xvalues[x2]
return (b1 << 4) | b2, b1 != 255 && b2 != 255
}