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FizzBuzz With Regexes
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| package main | |
| import ( | |
| "fmt" | |
| "regexp" | |
| "strconv" | |
| "strings" | |
| ) | |
| func main() { | |
| parts := "" | |
| for i := 0; i < 100; i++ { | |
| parts += "," + strconv.Itoa(i + 1) | |
| } | |
| mark := func(n int, label string) { | |
| r := fmt.Sprintf(`(,\w+){%d}(,\w+)`, n - 1) | |
| parts = regexp.MustCompile(r).ReplaceAllStringFunc(parts, | |
| func(s string) string { | |
| return s[:strings.LastIndex(s, ",")] + "," + label | |
| }) | |
| } | |
| mark(3, "Fizz") | |
| mark(5, "Buzz") | |
| mark(15, "FizzBuzz") | |
| fmt.Println(strings.Join(strings.Split(parts[1:], ","), "\n")) | |
| } |
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