75 lines
2.1 KiB
Go
75 lines
2.1 KiB
Go
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package main
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import (
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"fmt"
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"github.com/jessevdk/go-flags"
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)
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func main() {
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// Callback which will invoke callto:<argument> to call a number.
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// Note that this works just on OS X (and probably only with
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// Skype) but it shows the idea.
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// opts.Call = func(num string) {
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// cmd := exec.Command("open", "callto:"+num)
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// cmd.Start()
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// cmd.Process.Release()
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// }
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// Make some fake arguments to parse.
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// args := []string{
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// "-vv",
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// "--offset=5",
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// "-n", "Me",
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// "-p", "3",
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// "-s", "hello",
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// "-s", "world",
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// "--ptrslice", "hello",
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// "--ptrslice", "world",
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// "--intmap", "a:1",
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// "--intmap", "b:5",
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// "--filename", "hello.go",
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// "id",
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// "10",
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// "remaining1",
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// "remaining2",
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// }
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// Parse flags from `args'. Note that here we use flags.ParseArgs for
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// the sake of making a working example. Normally, you would simply use
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// flags.Parse(&opts) which uses os.Args
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// _, err := flags.ParseArgs(&opts, args)
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_, err := flags.Parse(&opts)
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if err != nil {
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panic(err)
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}
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fmt.Printf("Verbosity: %v\n", opts.Verbose)
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fmt.Printf("Offset: %d\n", opts.Offset)
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fmt.Printf("Name: %s\n", opts.Name)
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// fmt.Printf("Ptr: %d\n", *opts.Ptr)
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// fmt.Printf("StringSlice: %v\n", opts.StringSlice)
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// fmt.Printf("PtrSlice: [%v %v]\n", *opts.PtrSlice[0], *opts.PtrSlice[1])
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// fmt.Printf("IntMap: [a:%v b:%v]\n", opts.IntMap["a"], opts.IntMap["b"])
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// fmt.Printf("Filename: %v\n", opts.Filename)
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// fmt.Printf("Args.ID: %s\n", opts.Args.ID)
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// fmt.Printf("Args.Num: %d\n", opts.Args.Num)
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// fmt.Printf("Args.Rest: %v\n", opts.Args.Rest)
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}
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var opts struct {
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// Slice of bool will append 'true' each time the option
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// is encountered (can be set multiple times, like -vvv)
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Verbose []bool `short:"v" long:"verbose" description:"Show verbose debug information"`
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// Example of automatic marshalling to desired type (uint)
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Offset uint `long:"offset" description:"Offset"`
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// Example of a callback, called each time the option is found.
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// Call func(string) `short:"c" description:"Call phone number"`
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// Example of a required flag
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Name string `short:"n" long:"name" description:"A name" required:"true" env:"ENV_NAME"`
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}
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