package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)(\[monitor:///var/log/(messages|secure|cron|spooler|audit\.log)\](?:(?:\R.*){2})index=).*`)
var str = `[monitor:///var/log/messages]
sourcetype=linux
index=power
[monitor:///var/log/secure]
sourcetype=linux
index=power`
var substitution = "$1$2"
fmt.Println(re.ReplaceAllString(str, substitution))
}
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/