-- main.go --
package main

import (
	"fmt"
	"net/url"
	"os"
	"path/filepath"
)

func main() {
	u, err := url.Parse(os.Args[1])
	if err != nil {
		panic(err)
	}
	body, err := url.PathUnescape(u.Query().Get("body"))
	if err != nil {
		panic(err)
	}
	out := filepath.Join(os.TempDir(), "browser")
	f, err := os.Create(out)
	if err != nil {
		panic(err)
	}
	fmt.Fprintln(f, body)

	if c := n.multiChild; c != nil {
		// Don't record a match for a nameless wildcard (which arises from a
		// trailing slash in the pattern).
		if c.pattern.lastSegment().s != "" {
			matches = append(matches, pathUnescape(path[1:])) // remove initial slash
		}
		return c, matches
	}
	return nil, nil
}

// firstSegment splits path into its first segment, and the rest.
// The path must begin with "/".

			if len(headerValue) > 0 {
				ret = append(ret, headerValue)
			}
		}
	}
	return ret
}

func unescapeExtraKey(encodedKey string) string {
	key, err := url.PathUnescape(encodedKey) // Decode %-encoded bytes.
	if err != nil {
		return encodedKey // Always record extra strings, even if malformed/unencoded.
	}
	return key
}

	}
	var percentEncodedCases []expect
	for i := 1; i <= 0xff; i++ {
		input := fmt.Sprintf("/admin%%%.2x", i)
		output := input
		if supportedPercentEncode(i) {
			var err error
			output, err = url.PathUnescape(input)
			switch i {
			case 0x5c:
				output = strings.ReplaceAll(output, `\`, `/`)
			case 0x7e:
				output = strings.ReplaceAll(output, `%7e`, `~`)
			}
			if err != nil {

	"fmt"
	"log"
	"net/url"
	"strings"
)

func ExamplePathEscape() {
	path := url.PathEscape("my/cool+blog&about,stuff")
	fmt.Println(path)

	// Output:
	// my%2Fcool+blog&about%2Cstuff
}

func ExamplePathUnescape() {
	escapedPath := "my%2Fcool+blog&about%2Cstuff"
	path, err := url.PathUnescape(escapedPath)
	if err != nil {
		log.Fatal(err)
	}
	fmt.Println(path)

	// Output:

		b.WriteString("[")
		b.WriteString(strings.Join(groups, ","))
		b.WriteString("]")
	}
	return b.String()
}

func unescapeExtraKey(encodedKey string) string {
	key, err := url.PathUnescape(encodedKey) // Decode %-encoded bytes.
	if err != nil {
		return encodedKey // Always record extra strings, even if malformed/unencoded.
	}
	return key
}