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