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61 lines
1.0 KiB
61 lines
1.0 KiB
package main
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func main() {
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app := App{
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Name: "math",
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Description: "a simple command line math utility",
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Commands: []Command{
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{
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Name: "add",
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Description: "Add 2 and 2",
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Action: DoAdd},
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{
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Name: "subtract",
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Description: "Subtract 2 and 2",
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Action: DoSubtract},
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{
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Name: "multiply",
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Description: "Multiply 2 and 2",
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Action: DoMultiply},
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{
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Name: "divide",
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Description: "Divide 2 and 2",
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Action: DoDivide}}}
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app.Run("add")
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}
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func DoAdd(name string) {
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println("2+2=", 2+2)
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}
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func DoSubtract(name string) {
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println("2-2=", 2-2)
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}
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func DoMultiply(name string) {
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println("2*2=", 2*2)
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}
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func DoDivide(name string) {
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println("2/2=", 2/2)
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}
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type App struct {
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Name string
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Description string
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Commands []Command
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}
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type Command struct {
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Name string
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Description string
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Action Action
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}
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type Action func(name string)
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func (a App) Run(command string) {
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a.Commands[0].Action(a.Commands[0].Name)
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}
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