gochaとstrrandの比較

gistfile1.txt

gochaで/a{1,10}/にマッチする文字列を100万個生成
$ gocha -n 1000000 'a{1,10}' | sort | uniq -c
499715 a
249676 aa
125295 aaa
62576 aaaa
31241 aaaaa
15764 aaaaaa
7809 aaaaaaa
3933 aaaaaaaa
2007 aaaaaaaaa
1984 aaaaaaaaaa

strrandで/a{1,10}/にマッチする文字列を100万個生成
$ go run main.go 'a{1,10}' | sort | uniq -c
99953 a
99977 aa
99594 aaa
99917 aaaa
100370 aaaaa
99904 aaaaaa
100314 aaaaaaa
99901 aaaaaaaa
99818 aaaaaaaaa
100252 aaaaaaaaaa

(雑なパッチを当てた)
diff --git a/cmd/strrand/main.go b/cmd/strrand/main.go
index 06597d0..b771bbb 100644
--- a/cmd/strrand/main.go
+++ b/cmd/strrand/main.go
@@ -14,12 +14,14 @@ func main() {
        }
        ptn := os.Args[1]

+       for i := 0; i < 1000000; i++ {
        str, err := strrand.RandomString(ptn)
        if err != nil {
                fmt.Fprintln(os.Stderr, err)
                os.Exit(1)
        }
        fmt.Println(str)
+       }
 }