package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)(?<![^,\r\n])(?=,|$)`)
var str = `ABC,XYZ,LMN
0,,2.3
3.4,3,5
,0,
1.3,,4.5
-------------------------
ABC,XYZ,LMN
0,,2.3
3.4,3,5
,,0
1.3,,`
var substitution = "0"
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/