package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?s)(?(DEFINE)
(?<block>
\{ # Match opening brace
(?: # Start non-capturing group
[^{}]++ # Match non-brace characters without backtracking
| # or
(?&block) # Recursively match the last captured group
)* # Match 0 or more times
\} # Match closing brace
)
)(.+?)(?&block)(.+)`)
var str = `use strict;
use warnings;
my $text = << "END";
int max(int x, int y)
{
if (x > y)
{
return x;
}
else
{
return y;
}
}
// something here
`
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/