package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(\S|^)\n(?!\n)`)
var str = `
this is a
this is b
this is c
d
test
test
test
test
`
var substitution = "$1[replacement]"
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/