package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)\b([a-z])\1+(?!\1|\b)|(?<=([a-z]))((?!\2)[a-z])\3+`)
var str = `aaa baaab xxx
ahhj aaab cc iiik
bbb ahhj aaab cc iiik xxx fjjj baaaaaab yyyaaa`
var substitution = "$1$3"
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/