package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?im)[Xx]yz(?=[^<>]*<)(?!(<(?:a|span)>(?:.|\n))*</(?:span|a)>)`)
var str = `xyz
Company name nissan and Xyz abc product.
<p>Company name xyz and xyz abc product.</p>
<a href="xyz"><span>Xyz</span></a>
<a href="Xyz"><span>xyz</span></a>
<span>xyz</span>
<p>You know Nissan become now <a href="xyz.com"><span>xyz</span></a> Micra.</p>
You know xyz become now http://www.xyz.com.
<p>Now .xyz. become now www.xyz.com</p>
<p>www.xyz.com</p>
<p>Hello you know Xyz is Now xyz become now www.xyz.com</p>
`
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/