// license that can be found in the LICENSE file.

package net

import (
	"cmp"
	"context"
	"encoding/json"
	"errors"
	"fmt"
	"internal/testenv"
	"os/exec"
	"reflect"
	"regexp"
	"slices"
	"strings"
	"syscall"
	"testing"
)

var nslookupTestServers = []string{"mail.golang.com", "gmail.com"}
var lookupTestIPs = []string{"8.8.8.8", "1.1.1.1"}

func toJson(v any) string {

		Run: func(cmd *cobra.Command, args []string) {
			createLabelsFile()
		},
	}

	alphanumericRegex = regexp.MustCompile(`[^a-zA-Z0-9-]`)
	dotsRegex         = regexp.MustCompile(`[\.]`)
	replaceDashRegex  = regexp.MustCompile(`-(.)`)
)

func Execute() {
	if err := rootCmd.Execute(); err != nil {
		fmt.Println("Error running featuresgen:")
		panic(err)
	}
}

	dnsNamePrefixMaxLength = 253
)

var (
	tagRegexp            = regexp.MustCompile("^(" + dnsNamePrefixFmt + ")?(" + qualifiedNameFmt + ")$") // label value can be an empty string
	labelValueRegexp     = regexp.MustCompile("^" + "(" + qualifiedNameFmt + ")?" + "$")
	dns1123LabelRegexp   = regexp.MustCompile("^" + dns1123LabelFmt + "$")
	wildcardPrefixRegexp = regexp.MustCompile("^" + wildcardPrefix + "$")
)

}

func TestSimplify(t *testing.T) {
	for _, tt := range simplifyTests {
		re, err := Parse(tt.Regexp, MatchNL|Perl&^OneLine)
		if err != nil {
			t.Errorf("Parse(%#q) = error %v", tt.Regexp, err)
			continue
		}
		s := re.Simplify().String()
		if s != tt.Simple {
			t.Errorf("Simplify(%#q) = %#q, want %#q", tt.Regexp, s, tt.Simple)
		}
	}

import (
	"internal/testenv"
	"os/exec"
	"regexp"
	"runtime"
	"strings"
	"testing"
)

func TestInlining(t *testing.T) {
	testenv.MustHaveGoBuild(t)
	t.Parallel()
	out, err := exec.Command(
		testenv.GoToolPath(t),
		"build",
		"--gcflags=-m",
		"net/netip").CombinedOutput()
	if err != nil {
		t.Fatalf("go build: %v, %s", err, out)
	}
	got := map[string]bool{}

// See the License for the specific language governing permissions and
// limitations under the License.

package shellescape

import (
	"regexp"
	"strings"
)

var unsafeValue = regexp.MustCompile(`[^\\w@%+=:,./-]`)

func Quote(s string) string {
	// ported from https://github.com/chrissimpkins/shellescape/blob/master/lib/shellescape/main.py
	if len(s) == 0 {
		return "''"
	}

	go func() {
		cmdErr <- cmd.Run()
		pw.Close()
	}()
	scanner := bufio.NewScanner(pr)
	curPkg := ""
	canInline := regexp.MustCompile(`: can inline ([^ ]*)`)
	haveInlined := regexp.MustCompile(`: inlining call to ([^ ]*)`)
	cannotInline := regexp.MustCompile(`: cannot inline ([^ ]*): (.*)`)
	for scanner.Scan() {
		line := scanner.Text()
		if strings.HasPrefix(line, "# ") {
			curPkg = line[2:]

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package main

import (
	"fmt"
	"io/ioutil"
	"os"
	"os/exec"
	"path/filepath"
	"regexp"
)

func main() {
	err := os.Chdir(filepath.Join("fixedbugs", "issue9355.dir"))
	check(err)

	f, err := ioutil.TempFile("", "issue9355-*.o")
	if err != nil {
		fmt.Println(err)
		os.Exit(1)
	}

// appears at the beginning of the file), then the recorded position
// is unknown (line, col = 0, 0). If there are no matching comments,
// the result is nil.
func CommentMap(src io.Reader, rx *regexp.Regexp) (res map[uint][]Error) {
	// position of previous token
	var base *PosBase
	var prev struct{ line, col uint }

	var s scanner
	s.init(src, func(_, _ uint, text string) {
		if text[0] != '/' {

		os.RemoveAll(tempDirJSON)
		os.RemoveAll(validTempDirJSON)
	})

	cases := []struct {
		name           string
		args           []string
		wantError      bool
		expectedRegexp *regexp.Regexp // Expected regexp output
	}{
		{
			name:      "valid port naming service",
			args:      []string{"--filename", validPortNamingSvcFile},
			wantError: false,
		},
		{