package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(\s+)((?<=\s)[a-z]|^[a-z]).*?([A-Z]?(?<=[a-zA-Z0-9])[a-zA-Z0-9]+)`)
var str = `do we have a Hashtag
`
var substitution = "$2$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/