package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)<(?:div|ul|li)(?=[^>]*\bclass="([^"]+)")(?=(?:[^>]*\bdata-\w+="([^"]+)")?)`)
var str = `With preg_match_all I want to get class and data-attributes in html.
I asked a similar question before. The correct answer to the previous responsibility was done with DOM. But as an alternative to the DOM structure, I also need a regex version.
The pattern works fine. However, if the lines are side-by-side, they also take class names from tags that should not be accepted.
<div class="noproblem">
<ul class="noproblem" data-ss="1">
<li class="noproblem" data-ss="1">
<!-- <i> is not my tag. but there s no problem with that. because it s underneath . -->
<i class="no_problem"></i>
</li>
</ul>
</div>
<div class="noproblem" data-ss="1"> <!-- problem: data-ss is not accepted -->
<ul class="noproblem" data-ss="1">
<!-- <i> is not my tag. my tags: div|ul|li . -->
<li class="noproblem"><i class="this_is_problem"></i>
</li>
</ul>
</div>
<div class="noproblem">
<ul class="noproblem">
<!-- <i> is not my tag. my tags: div|ul|li . -->
<li class="noproblem"><i class="this_is_problem"></i>
</li>
<!-- <span> is not my tag. my tags: div|ul|li . -->
<li class="test"><span class="this_is_problem"></span></li>
<!-- (li class empty version): <span> is not my tag. my tags: div|ul|li . -->
<li><span class="this_is_problem"></span></li>
</ul>
</div>`
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/