FileHeaders to 10000.
These limits may be adjusted with the GODEBUG=multipartmaxheaders=<values>
setting.

Reader.ReadForm further limits the number of parts in a form to 1000.
This limit may be adjusted with the GODEBUG=multipartmaxparts=<value>
setting.
*/
package multipart

import (
	"bufio"
	"bytes"
	"fmt"
	"internal/godebug"
	"io"
	"mime"
	"mime/quotedprintable"
	"net/textproto"

// memory.
func (r *Reader) ReadForm(maxMemory int64) (*Form, error) {
	return r.readForm(maxMemory)
}

var (
	multipartfiles    = godebug.New("#multipartfiles") // TODO: document and remove #
	multipartmaxparts = godebug.New("multipartmaxparts")
)

func (r *Reader) readForm(maxMemory int64) (_ *Form, err error) {
	form := &Form{make(map[string][]string), make(map[string][]*FileHeader)}
	var (

cd $WORK/local
go mod init foo
go mod edit -module local-only -require=other-local@v1.0.0 -replace other-local@v1.0.0=./other
cmpenv go.mod go.mod.edit

# go mod edit -godebug
cd $WORK/g
cp go.mod.start go.mod
go mod edit -godebug key=value
cmpenv go.mod go.mod.edit
go mod edit -dropgodebug key2
cmpenv go.mod go.mod.edit
go mod edit -dropgodebug key
cmpenv go.mod go.mod.start

-- x.go --
package x

	"errors"
	"fmt"
	"internal/godebug"
	"io"
	"io/fs"
	"log"
	"os"
	pathpkg "path"
	"path/filepath"
	"runtime"
	"runtime/debug"
	"sort"
	"strings"
	"sync"
	"time"
)

// Trace emits a trace event for the operation and file path to the trace log,
// but only when $GODEBUG contains gofsystrace=1.
// The traces are appended to the file named by the $GODEBUG setting gofsystracelog, or else standard error.

		t.Fatal(err)
	}
	outputPath := o.Name()
	if err := o.Close(); err != nil {
		t.Fatal(err)
	}

	env := []string{"TEST_OUTPUT=" + outputPath}
	for _, e := range os.Environ() {
		if strings.HasPrefix(e, "GODEBUG=") || strings.HasPrefix(e, "GOTRACEBACK=") {
			continue
		}
		env = append(env, e)
	}

	proc, err := os.StartProcess(fdsBin, []string{fdsBin}, &os.ProcAttr{
		Env:   env,
		Files: []*os.File{},
	})

package cache

import (
	"bytes"
	"crypto/sha256"
	"fmt"
	"hash"
	"io"
	"os"
	"runtime"
	"strings"
	"sync"
)

var debugHash = false // set when GODEBUG=gocachehash=1

// HashSize is the number of bytes in a hash.
const HashSize = 32

// A Hash provides access to the canonical hash function used to index the cache.

	GOROOT=<actual GOROOT>
	TESTGO_GOROOT=<GOROOT used to build cmd/go, for use in tests that may change GOROOT>
	HOME=/no-home
	PATH=<actual PATH>
	TMPDIR=$WORK/tmp
	GODEBUG=<actual GODEBUG>
	devnull=<value of os.DevNull>
	goversion=<current Go version; for example, 1.12>

On Plan 9, the variables $path and $home are set instead of $PATH and $HOME.

				goexp += ","
			}
			goexp += args[0]
			runenv = append(runenv, "GOEXPERIMENT="+goexp)

		case "-godebug": // set GODEBUG environment
			args = args[1:]
			if godebug != "" {
				godebug += ","
			}
			godebug += args[0]
			runenv = append(runenv, "GODEBUG="+godebug)

		default:
			flags = append(flags, args[0])
		}
		args = args[1:]
	}
	if action == "errorcheck" {

	< index/suffixarray;

	# executable parsing
	FMT, encoding/binary, compress/zlib, internal/saferio, internal/zstd, sort
	< runtime/debug
	< debug/dwarf
	< debug/elf, debug/gosym, debug/macho, debug/pe, debug/plan9obj, internal/xcoff
	< debug/buildinfo
	< DEBUG;

	# go parser and friends.
	FMT, sort
	< internal/gover
	< go/version
	< go/token
	< go/scanner
	< go/ast

		"goCalledFromCThread",
	}
	logs := make(map[string]*trace.Event)
	for _, category := range wantLogs {
		logs[category] = nil
	}
	for _, tracefpunwindoff := range []int{1, 0} {
		env := fmt.Sprintf("GODEBUG=tracefpunwindoff=%d", tracefpunwindoff)
		got := runBuiltTestProg(t, exe, "Trace", env)
		prefix, tracePath, found := strings.Cut(got, ":")
		if !found || prefix != "trace path" {
			t.Fatalf("unexpected output:\n%s\n", got)