src

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git clone git://code.dwrz.net/src
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randstr.go (441B)

      1 package randstr
      2 
      3 import (
      4 	"math/rand"
      5 	"time"
      6 )
      7 
      8 const (
      9 	Alphanumeric        = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
     10 	Numeric      string = "0123456789"
     11 )
     12 
     13 var random = rand.New(rand.NewSource(time.Now().UnixNano()))
     14 
     15 func Charset(charset string, length int) string {
     16 	var b = make([]byte, length)
     17 
     18 	random.Read(b)
     19 
     20 	for i := 0; i < length; i++ {
     21 		b[i] = charset[int(b[i])%len(charset)]
     22 	}
     23 
     24 	return string(b)
     25 }