This package is used to handle text command in Go program.
Basic usage:
import "github.com/funny/cmd"
cmd.Register("hello", "say hello", func() {
fmt.Println("Hello!")
})
var command string
fmt.Scanln(&command)
cmd.Process(command)The first argument of Register() function, is a regular expression.
When a command match the regular expression the handler function will be invoked.
A command handler function can be any kind of these types:
func()
func() interface{}
func(args []string)
func(args []string) interface{}When a command handler receive []string argument, the command will be splited by Regexp.FindStringSubmatch() and pass to handler.
For example:
import "github.com/funny/cmd"
cmd.Register("cmd (abc|def) ([0-9]) ([0-9])", "test", func(args []string){
fmt.Println(args[0]) // cmd abc 1 2
fmt.Println(args[1]) // abc
fmt.Println(args[2]) // 1
fmt.Println(args[3]) // 2
})
cmd.Process("cmd abc 1 2")Document: http://godoc.org/github.com/funny/cmd
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