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package kingpin
import (
"fmt"
"net/http"
"strings"
)
type HTTPHeaderValue http.Header
func (h *HTTPHeaderValue) Set(value string) error {
parts := strings.SplitN(value, ":", 2)
if len(parts) != 2 {
return fmt.Errorf("expected HEADER:VALUE got '%s'", value)
}
(*http.Header)(h).Add(parts[0], parts[1])
return nil
}
func (h *HTTPHeaderValue) Get() interface{} {
return (http.Header)(*h)
}
func (h *HTTPHeaderValue) String() string {
return ""
}
func HTTPHeader(s Settings) (target *http.Header) {
target = new(http.Header)
s.SetValue((*HTTPHeaderValue)(target))
return
}
// This example ilustrates how to define custom parsers. HTTPHeader
// cumulatively parses each encountered --header flag into a http.Header struct.
func ExampleValue() {
var (
curl = New("curl", "transfer a URL")
headers = HTTPHeader(curl.Flag("headers", "Add HTTP headers to the request.").Short('H').PlaceHolder("HEADER:VALUE"))
)
curl.Parse([]string{"-H Content-Type:application/octet-stream"})
for key, value := range *headers {
fmt.Printf("%s = %s\n", key, value)
}
}