Sha256: 134400280b646c13209dca5c4591f9f83ba41b9c58dafd1c81f90f834675ad8a
Contents?: true
Size: 460 Bytes
Versions: 56
Compression:
Stored size: 460 Bytes
Contents
package cryptosquare
import (
"math"
"strings"
)
func norm(r rune) rune {
switch {
case r >= 'a' && r <= 'z' || r >= '0' && r <= '9':
return r
case r >= 'A' && r <= 'Z':
return r + 'a' - 'A'
}
return -1
}
func Encode(pt string) string {
pt = strings.Map(norm, pt)
numCols := int(math.Ceil(math.Sqrt(float64(len(pt)))))
cols := make([]string, numCols)
for i, r := range pt {
cols[i%numCols] += string(r)
}
return strings.Join(cols, " ")
}
Version data entries
56 entries across 56 versions & 1 rubygems