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More flexible letter/symbol/nunmber combinations.

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This commit is contained in:
Greg 2019-10-01 18:00:06 -04:00
parent b6d598696c
commit a81bebfaf8
1 changed files with 19 additions and 1 deletions
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20
main.go
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@ -6,10 +6,16 @@ import (
"math/big" "math/big"
) )
type Generator func() (byte,error)
var chars []byte = []byte("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789~`!@#$%^&*()_+-=[]{}\\|;:'\",./<>?") var chars []byte = []byte("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789~`!@#$%^&*()_+-=[]{}\\|;:'\",./<>?")
var letters []byte = chars[0:52] var letters []byte = chars[0:52]
var digits []byte = chars[52:62] var digits []byte = chars[52:62]
var letdig []byte = chars[0:62]
var symbols []byte = chars[62:94] var symbols []byte = chars[62:94]
var digsym []byte = chars[52:94]
var letsym []byte = []byte("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ~`!@#$%^&*()_+-=[]{}\\|;:'\",./<>?")
func gen(s []byte) (byte,error) { func gen(s []byte) (byte,error) {
nBig, err := crand.Int(crand.Reader, big.NewInt(int64(len(s)))) nBig, err := crand.Int(crand.Reader, big.NewInt(int64(len(s))))
@ -32,11 +38,23 @@ func Symbol() (byte,error) {
return gen(symbols) return gen(symbols)
} }
func LetterDigits() (byte,error) {
return gen(letdig)
}
func DigitsSymbols() (byte,error) {
return gen(digsym)
}
func LettersSymbols() (byte, error) {
return gen(letsym)
}
func Char() (byte,error) { func Char() (byte,error) {
return gen(chars) return gen(chars)
} }
func Slice(f func() (byte,error), n int) ([]byte,error) { func Slice(f Generator, n int) ([]byte,error) {
ret := make([]byte,0) ret := make([]byte,0)
for i := 0; i < n; i++ { for i := 0; i < n; i++ {
x,err := f() x,err := f()