douwen7331 2015-12-22 05:13
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如何在Go中使用Cli访问一系列命令?

Currently using Codegangsta's Cli Library. I run a command like so:

myGoProgram arg1 arg2 arg3 --flag1 flag1arg 

Running

app.Action = func(c *cli.Context) {
        fmt.Println("Context: ", c.Args())
}

returns: [arg1 arg2 arg3 --flag1 flag1arg] (c.Args()'s return type)

How can I access arg1, arg2, and arg3, but not --flag1 or flag1arg? Do I have to iterate through this array?

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  • dongtu7567 2015-12-22 05:43
    关注

    Ok, so what I did was create two arrays of the same contents and just removed elements accordingly to create an array of only the raw commands.

    func noFlagCliArgs(cliArgs []string) []string {
        a := cliArgs
        for pos, arg := range cliArgs {
            if strings.Compare(string(arg[0]), "-") == 0 {
                // Cut out two to get rid of flag and its argument
                a = append(a[:pos], a[pos+2:]...)
            }
        }
        return a
    }
    
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