package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)(?=
[ ]{0,8}? \d{1,9}
( .* ) $ # (1)
)
[ \d]{9}
(?= \1 $ )
`)
var str = `examples of valid strings
123456789
kfasdf 3456789asdf
a 1
and examples of invalid strings
12345 789
1 9
a 678a
`
for i, match := range re.FindAllString(str, -1) {
fmt.Println(match, "found at index", i)
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Golang, please visit: https://golang.org/pkg/regexp/