55 lines
1 KiB
Go
55 lines
1 KiB
Go
|
package cli
|
||
|
|
|
||
|
|
type Args interface {
|
||
|
|
// Get returns the nth argument, or else a blank string
|
||
|
|
Get(n int) string
|
||
|
|
// First returns the first argument, or else a blank string
|
||
|
|
First() string
|
||
|
|
// Tail returns the rest of the arguments (not the first one)
|
||
|
|
// or else an empty string slice
|
||
|
|
Tail() []string
|
||
|
|
// Len returns the length of the wrapped slice
|
||
|
|
Len() int
|
||
|
|
// Present checks if there are any arguments present
|
||
|
|
Present() bool
|
||
|
|
// Slice returns a copy of the internal slice
|
||
|
|
Slice() []string
|
||
|
|
}
|
||
|
|
|
||
|
|
type args []string
|
||
|
|
|
||
|
|
func (a *args) Get(n int) string {
|
||
|
|
if len(*a) > n {
|
||
|
|
return (*a)[n]
|
||
|
|
}
|
||
|
|
return ""
|
||
|
|
}
|
||
|
|
|
||
|
|
func (a *args) First() string {
|
||
|
|
return a.Get(0)
|
||
|
|
}
|
||
|
|
|
||
|
|
func (a *args) Tail() []string {
|
||
|
|
if a.Len() >= 2 {
|
||
|
|
tail := []string((*a)[1:])
|
||
|
|
ret := make([]string, len(tail))
|
||
|
|
copy(ret, tail)
|
||
|
|
return ret
|
||
|
|
}
|
||
|
|
return []string{}
|
||
|
|
}
|
||
|
|
|
||
|
|
func (a *args) Len() int {
|
||
|
|
return len(*a)
|
||
|
|
}
|
||
|
|
|
||
|
|
func (a *args) Present() bool {
|
||
|
|
return a.Len() != 0
|
||
|
|
}
|
||
|
|
|
||
|
|
func (a *args) Slice() []string {
|
||
|
|
ret := make([]string, len(*a))
|
||
|
|
copy(ret, *a)
|
||
|
|
return ret
|
||
|
|
}
|