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// Copyright 2015-2016 Luke Shumaker <lukeshu@sbcglobal.net>.
//
// This is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 2 of
// the License, or (at your option) any later version.
//
// This software is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public
// License along with this manual; if not, see
// <http://www.gnu.org/licenses/>.
package parabola_hackers
import (
"crypto/rand"
"math/big"
)
func RandomString(alphabet string, n uint) (str string, err error) {
var alphabet_len = big.NewInt(int64(len(alphabet)))
var bigint *big.Int
_str := make([]byte, n)
for i := 0; i < len(_str); i++ {
bigint, err = rand.Int(rand.Reader, alphabet_len)
if err != nil {
return
}
_str[i] = alphabet[bigint.Int64()]
}
str = string(_str[:])
return
}
func Set2list(set map[string]bool) []string {
list := make([]string, len(set))
i := uint(0)
for item, _ := range set {
list[i] = item
i++
}
return list
}
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