package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)(^(?!.*\bno\b.*\b(text|sample text)\b)(?!.*\b(text|sample text)\b .*not).+$)`)
var str = `should not match: first sentence with no and sample text
should not match: second with a text but also a not
should not match: third has a no, a text and a not
should match: fourth alone is what is neeeded with just text
should match: keep putting line here no
`
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/