package httpguts

import (
	"net/textproto"
	"strings"
)

// ValidTrailerHeader reports whether name is a valid header field name to appear
// in trailers.
// See RFC 7230, Section 4.1.2
func ValidTrailerHeader(name string) bool {
	name = textproto.CanonicalMIMEHeaderKey(name)
	if strings.HasPrefix(name, "If-") || badTrailer[name] {
		return false
	}
	return true
}

	for _, v := range values {
		if headerValueContainsToken(v, token) {
			return true
		}
	}
	return false
}

// isOWS reports whether b is an optional whitespace byte, as defined
// by RFC 7230 section 3.2.3.
func isOWS(b byte) bool { return b == ' ' || b == '\t' }

// trimOWS returns x with all optional whitespace removes from the
// beginning and end.
func trimOWS(x string) string {

}

// NewRequestWithContext returns a new incoming server Request, suitable
// for passing to an [http.Handler] for testing.
//
// The target is the RFC 7230 "request-target": it may be either a
// path or an absolute URL. If target is an absolute URL, the host name
// from the URL is used. Otherwise, "example.com" is used.
//

   */
  HTTP_1_0("http/1.0"),

  /**
   * A plaintext framing that includes persistent connections.
   *
   * This version of OkHttp implements [RFC 7230][rfc_7230], and tracks revisions to that spec.
   *
   * [rfc_7230]: https://tools.ietf.org/html/rfc7230
   */
  HTTP_1_1("http/1.1"),

  /**

		for _, k := range trailers {
			for _, k := range strings.Split(k, ",") {
				k = http.CanonicalHeaderKey(textproto.TrimString(k))
				if !httpguts.ValidTrailerHeader(k) {
					// Ignore since forbidden by RFC 7230, section 4.1.2.
					continue
				}
				vv, ok := rw.HeaderMap[k]
				if !ok {
					continue
				}
				vv2 := make([]string, len(vv))
				copy(vv2, vv)
				res.Trailer[k] = vv2
			}
		}

	reset()

	ev := RegisterFloatVar(testVar, 123.0, "")
	v, present := ev.Lookup()
	if v != 123.0 {
		t.Errorf("Expected 123.0, got %v", v)
	}
	if present {
		t.Errorf("Expected not present")
	}

	v = ev.Get()
	if v != 123.0 {
		t.Errorf("Expected 123.0, got %v", v)
	}

	_ = os.Setenv(testVar, "XXX")

	ev = RegisterFloatVar(testVar, 123.0, "")
	v, present = ev.Lookup()
	if v != 123.0 {

go: trying upgrade to example.net/d@v0.2.0
go: module ./d2 requires go >= 1.23.0; switching to go1.23.9
go: trying upgrade to example.net/a@v0.2.0
go: trying upgrade to example.net/b@v0.1.0
go: accepting indirect upgrade from go@1.20 to 1.22.0
go: trying upgrade to example.net/c@v0.1.0
go: trying upgrade to example.net/d@v0.2.0
go: accepting indirect upgrade from go@1.22.0 to 1.23.0
go: upgraded go 1.20 => 1.23.0
go: added toolchain go1.23.9

		// instead of everytime testableNetwork is called.
		out, _ := exec.Command("oslevel", "-s").Output()
		if len(out) >= len("7200-XX-ZZ-YYMM") { // AIX 7.2, Tech Level XX, Service Pack ZZ, date YYMM
			aixVer := string(out[:4])
			tl, _ := strconv.Atoi(string(out[5:7]))
			unixEnabledOnAIX = aixVer > "7200" || (aixVer == "7200" && tl >= 2)
		}
	}
}

// testableNetwork reports whether network is testable on the current

is in a module with a `go.mod` `go` line using Go 1.23.0 or later.
When Go 1.23 builds older programs, the old behaviors remain in effect.
The new [GODEBUG setting](/doc/godebug) [`asynctimerchan=1`](/pkg/time/#NewTimer)
can be used to revert back to asynchronous channel behaviors

Documentation = "https://fastapi.tiangolo.com/"
Repository = "https://github.com/tiangolo/fastapi"

[project.optional-dependencies]

standard = [
    "fastapi-cli >=0.0.2",
    # For the test client
    "httpx >=0.23.0",
    # For templates
    "jinja2 >=2.11.2",
    # For forms and file uploads
    "python-multipart >=0.0.7",
    # For UJSONResponse
    "ujson >=4.0.1,!=4.0.2,!=4.1.0,!=4.2.0,!=4.3.0,!=5.0.0,!=5.1.0",