mur3shorter

Documentation

Index

• Constants
• type Shorter
  • func MustNewShorter(length int64, alphabet ...string) *Shorter
  • func NewShorter(length int64, alphabet ...string) (*Shorter, error)
  • func (s *Shorter) Mapping(longURL string) string

Constants

const (
	// Index 十进制为 61，用于截取索引数
	Index = 0b111101
	// Shift 右移位数，为 Index 所占位数
	Shift = 6
	// DefaultAlphabet 默认对应进制数字符表，长度须为 62
	DefaultAlphabet = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
)

Types

type Shorter

type Shorter struct {
	Length   int    // 生成短地址标识长度
	Alphabet []byte // 对应进制数字符表
}

Shorter murmur3 短地址映射器

func MustNewShorter

func MustNewShorter(length int64, alphabet ...string) *Shorter

MustNewShorter 新建 murmur3 短地址映射器

func NewShorter

func NewShorter(length int64, alphabet ...string) (*Shorter, error)

NewShorter 新建 murmur3 短地址映射器

func (*Shorter) Mapping

func (s *Shorter) Mapping(longURL string) string

Mapping 长地址映射成短地址标识