Golang golang-gocomment (snippet)

Go programming example 'golang-gocomment'

golang-gocomment

Golang beginners example: golang-gocomment

package main

import (
    "fmt"
    "io/ioutil"
    "os"
    "os/exec"
    "regexp"
    "strconv"
)

func main() {
    if len(os.Args) >= 2 {
        var output string
        var i int
        input := os.Args[1]
        gosrcs, _ := ioutil.ReadFile(input)
        gosrc := string(gosrcs)
        gorun, _ := exec.Command("go", "build", input).Output()
        gostr := string(gorun)
        aline := regexp.MustCompile("[^\\n]*\\n")
        line, _ := regexp.Compile(input + ":(\\d+): ")
        stre := line.FindAllStringSubmatch(gostr, -1)
        stra := aline.FindAllString(gosrc, -1)
        j := 0
        for i = 0; i < len(stra); i++ {
            if len(stre) > j {
                lc, _ := strconv.ParseInt(stre[j][1], 10, 0)
                if i == int(lc)-1 {
                    output += "//" + stra[i]
                    j++
                } else {
                    fmt.Println(i)
                    fmt.Println(stre[j][1])
                    output += stra[i]
                }
            } else {
                output += stra[i]
            }
        }
        outputb := []byte(output)
        ioutil.WriteFile(input, outputb, 0755)
    }
}

Useful links

• Learn Go: https://golangr.com
• Download Go: https://golang.org