package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?!<[^>]*?>)\bhello world\b(?![^<]*?(?:</[^/]*>|>))`)
var str = `one two three hello world four five
one <a href='index.html'> hello world </a> four five
foo bar <p>hello world</p> hello
<p name="hello world">hello world</p>
one two three <img alt='hello world' \>four five
<img alt="hello world"> foo
foo bar <a href="index.html">hello world</a> again
one two three hello world four five
one two three <img alt='hello world' \>four five`
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/