package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?im)\s*(\d{1,5})?\s*(?:<(?<pri>\d{1,3})>)`)
var str = `23123<123>
123 <1>
123 <123>
123<12>
<123>
<1>`
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/