package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)<li>(?>[^<]+|(<[uo]l)>|<(?!\/?li)[^>]*>|(?R))*<\/li>(?(1)|(*F))`)
var str = `<li>Hi</li> - Just some text, should ignore
<li><ul><li>hi</li></ul></li> - Directly in <li>
<li>Hi<ul><li>hi</li></ul></li> - Plain text before the nested list
<li><strong>Hi</strong><ul><li>hi</li></ul></li> - HTML content before the nested list
<ul><li>list item 1</li></ul>
<ul><li>list item 1</li><li><ol><li>2.1</li><li>2.2</li><li>2.3</li></ol></li><li>list item 3</li></ul>
<ul><li>list item 1</li><li>asdasdas<ol><li>2.1</li><li>2.2</li><li>2.3</li></ol></li><li>list item 3</li></ul>
<ul><li>list item 1</li><li><strong>asdasdas</strong><ol><li>2.1</li><li>2.2</li><li>2.3</li></ol></li><li>list item 3</li></ul>
`
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/