package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?<=[\s>])#(\d*[A-Za-z_]+\d*)\b(?!;)`)
var str = `Here's a #hashtag and here is #not_a_tag; which should be different.
Also testing: Mid#hash. #123 #123 #!@£ and <p>#hash</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/