Poker is ported from the Python library worldveil/deuces.
Use go get to install Poker:
$ go get github.com/chehsunliu/pokerSupport 5-, 6-, and 7-card evalutions:
package main
import (
"fmt"
"github.com/chehsunliu/poker"
)
func main() {
deck := poker.NewDeck()
hand := deck.Draw(7)
fmt.Println(hand)
rank := poker.Evaluate(hand)
fmt.Println(rank)
fmt.Println(poker.RankString(rank))
}$ go run ./main.go
[Kd 4h Qh 3s 8s 5h Jd]
6695
High Card
$ go run ./main.go
[4c Qh Ad 9c 9s 3h 4d]
3062
Two Pair
$ go run ./main.go
[Jh Qd Kd Qs 7d As Qh]
1742
Three of a KindCompared with notnil/joker, Poker is 160x faster on 5-card evaluation, and drops to 40x faster on 7-card evaluation.
go test -bench=. -benchtime 5s
goos: darwin
goarch: amd64
pkg: github.com/chehsunliu/poker
BenchmarkFivePoker-4 23396181 253 ns/op
BenchmarkFiveJoker-4 141036 41662 ns/op
BenchmarkSixPoker-4 3037298 1949 ns/op
BenchmarkSixJoker-4 28158 211533 ns/op
BenchmarkSevenPoker-4 356448 16357 ns/op
BenchmarkSevenJoker-4 7143 759394 ns/op
PASS
ok github.com/chehsunliu/poker 40.111s