"net/url"
	"strings"
	"unicode"
)

// A pattern is something that can be matched against an HTTP request.
// It has an optional method, an optional host, and a path.
type pattern struct {
	str    string // original string
	method string
	host   string
	// The representation of a path differs from the surface syntax, which
	// simplifies most algorithms.
	//
	// Paths ending in '/' are represented with an anonymous "..." wildcard.

}

// transportRequest is a wrapper around a *Request that adds
// optional extra headers to write and stores any error to return
// from roundTrip.
type transportRequest struct {
	*Request                        // original request, not to be mutated
	extra    Header                 // extra headers to write, or nil
	trace    *httptrace.ClientTrace // optional

	ctx    context.Context // canceled when we are done with the request

// Demangle attempts to demangle and optionally simplify any function
// names referenced in the profile. It works on a best-effort basis:
// it will silently preserve the original names in case of any errors.
func (p *Profile) Demangle(d Demangler) error {
	// Collect names to demangle.
	var names []string
	for _, fn := range p.Function {
		names = append(names, fn.SystemName)
	}

flag and otherwise keep the signal handler. If Notify is called for an
asynchronous signal, a Go signal handler will be installed for that
signal. If, later, Reset is called for that signal, the original
handling for that signal will be reinstalled, restoring the non-Go
signal handler if any.

Go code built without -buildmode=c-archive or -buildmode=c-shared will

		if got != test.want {
			t.Errorf("%v: got %t, want %t", test.leveler, got, test.want)
		}
	}
}

func TestSecondWith(t *testing.T) {
	// Verify that a second call to Logger.With does not corrupt
	// the original.
	var buf bytes.Buffer
	h := NewTextHandler(&buf, &HandlerOptions{ReplaceAttr: removeKeys(TimeKey)})
	logger := New(h).With(
		String("app", "playground"),
		String("role", "tester"),
		Int("data_version", 2),

	if r.checkFuncMisuse() {
		bodyFunc.Body.List = append(bodyFunc.Body.List, r.assertReady(start, loop))
		bodyFunc.Body.List = append(bodyFunc.Body.List, r.setState(abi.RF_PANIC, start))
	}

	// Original loop body (already rewritten by editStmt during inspect).
	bodyFunc.Body.List = append(bodyFunc.Body.List, body...)

	// end of loop body, set state to abi.RF_READY and return true to continue iteration

//
//	-run=""
//		if non-empty, specifies a regular expression to select
//		directives whose full original source text (excluding
//		any trailing spaces and final newline) matches the
//		expression.
//
//	-skip=""
//		if non-empty, specifies a regular expression to suppress
//		directives whose full original source text (excluding
//		any trailing spaces and final newline) matches the

		plaintext = payload[:n]
	}

	hc.incSeq()
	return plaintext, typ, nil
}

// sliceForAppend extends the input slice by n bytes. head is the full extended
// slice, while tail is the appended part. If the original slice has sufficient
// capacity no allocation is performed.
func sliceForAppend(in []byte, n int) (head, tail []byte) {
	if total := len(in) + n; cap(in) >= total {
		head = in[:total]
	} else {

func (p *parser) parseEventBatches() (Events, error) {
	// The ordering of CPU profile sample events in the data stream is based on
	// when each run of the signal handler was able to acquire the spinlock,
	// with original timestamps corresponding to when ReadTrace pulled the data
	// off of the profBuf queue. Re-sort them by the timestamp we captured
	// inside the signal handler.
	slices.SortFunc(p.cpuSamples, func(a, b Event) int {

//   ⎣x / c⎦ = ⎣⎣x * (m/2) / 2^n⎦ / 2^(s-1)⎦
//   multiply + shift
//
// Case 2: c is even.
//   ⎣x / c⎦ = ⎣(x/2) / (c/2)⎦
//   ⎣x / c⎦ = ⎣⎣x/2⎦ / (c/2)⎦
//     This is just the original problem, with x' = ⎣x/2⎦, c' = c/2, n' = n-1.
//       s' = s-1
//       m' = ⎡2^(n'+s')/c'⎤
//          = ⎡2^(n+s-1)/c⎤
//          = ⎡m/2⎤
//   ⎣x / c⎦ = ⎣x' * m' / 2^(n'+s')⎦
//   ⎣x / c⎦ = ⎣⎣x/2⎦ * ⎡m/2⎤ / 2^(n+s-2)⎦