package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?s)(?'a'[~_])(?=
(?'d'(?!\s)(?:(?!\k'a').)+(?<!\s)\k'a') |
(?=(?'b'.*))(?'c'
^(?>\k'a'(?&d)|.)*\k'a'(?&d)(?=\k'b'\z) |
(?<=(?=x^|(?&c)).)
)
)`)
var str = `~target~
~target~adjacent is not target~
begining with space ~ target~
ending with space ~target ~
empty ~~
divided by two lines _tar
get_
without closing delimiter ~target
with mixed delimiters ~_target~_
with nested delimiters ~_target_~`
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/