Repetition  = "{" Expression "}" .
</pre>

<p>
Productions are expressions constructed from terms and the following
operators, in increasing precedence:
</p>
<pre class="grammar">
|   alternation
()  grouping
[]  option (0 or 1 times)
{}  repetition (0 to n times)
</pre>

<p>
Lower-case production names are used to identify lexical tokens.
Non-terminals are in CamelCase. Lexical tokens are enclosed in

Repetition  = "{" Expression "}" .
</pre>

<p>
Productions are expressions constructed from terms and the following
operators, in increasing precedence:
</p>
<pre class="grammar">
|   alternation
()  grouping
[]  option (0 or 1 times)
{}  repetition (0 to n times)
</pre>

<p>
Lowercase production names are used to identify lexical (terminal) tokens.
Non-terminals are in CamelCase. Lexical tokens are enclosed in

	// larger chunks as the source of the write, as when the source
	// is too large we are basically just thrashing the CPU D-cache.
	// So if the result length is larger than an empirically-found
	// limit (8KB), we stop growing the source string once the limit
	// is reached and keep reusing the same source string - that
	// should therefore be always resident in the L1 cache - until we
	// have completed the construction of the result.

pkg syscall (darwin-386), const IPPROTO_RAW = 255
pkg syscall (darwin-386), const IPPROTO_RCCMON = 10
pkg syscall (darwin-386), const IPPROTO_RDP = 27
pkg syscall (darwin-386), const IPPROTO_ROUTING = 43
pkg syscall (darwin-386), const IPPROTO_RSVP = 46
pkg syscall (darwin-386), const IPPROTO_RVD = 66
pkg syscall (darwin-386), const IPPROTO_SATEXPAK = 64
pkg syscall (darwin-386), const IPPROTO_SATMON = 69

pkg os/exec, func CommandContext(context.Context, string, ...string) *Cmd
pkg os/user, func LookupGroup(string) (*Group, error)
pkg os/user, func LookupGroupId(string) (*Group, error)
pkg os/user, method (*User) GroupIds() ([]string, error)
pkg os/user, method (UnknownGroupError) Error() string
pkg os/user, method (UnknownGroupIdError) Error() string
pkg os/user, type Group struct
pkg os/user, type Group struct, Gid string

pkg syscall (freebsd-386-cgo), const IPPROTO_RAW ideal-int
pkg syscall (freebsd-386-cgo), const IPPROTO_RCCMON ideal-int
pkg syscall (freebsd-386-cgo), const IPPROTO_RDP ideal-int
pkg syscall (freebsd-386-cgo), const IPPROTO_ROUTING ideal-int
pkg syscall (freebsd-386-cgo), const IPPROTO_RSVP ideal-int
pkg syscall (freebsd-386-cgo), const IPPROTO_RVD ideal-int
pkg syscall (freebsd-386-cgo), const IPPROTO_SATEXPAK ideal-int

func (b *Buffer) Grow(n int) {
	if n < 0 {
		panic("bytes.Buffer.Grow: negative count")
	}
	m := b.grow(n)
	b.buf = b.buf[:m]
}

// Write appends the contents of p to the buffer, growing the buffer as
// needed. The return value n is the length of p; err is always nil. If the
// buffer becomes too large, Write will panic with [ErrTooLarge].
func (b *Buffer) Write(p []byte) (n int, err error) {

pkg syscall (darwin-arm64), const IPPROTO_RDP = 27
pkg syscall (darwin-arm64), const IPPROTO_RDP ideal-int
pkg syscall (darwin-arm64), const IPPROTO_ROUTING = 43
pkg syscall (darwin-arm64), const IPPROTO_ROUTING ideal-int
pkg syscall (darwin-arm64), const IPPROTO_RSVP = 46
pkg syscall (darwin-arm64), const IPPROTO_RSVP ideal-int
pkg syscall (darwin-arm64), const IPPROTO_RVD = 66

pkg syscall (freebsd-arm64), const IPPROTO_RDP = 27
pkg syscall (freebsd-arm64), const IPPROTO_RDP ideal-int
pkg syscall (freebsd-arm64), const IPPROTO_ROUTING = 43
pkg syscall (freebsd-arm64), const IPPROTO_ROUTING ideal-int
pkg syscall (freebsd-arm64), const IPPROTO_RSVP = 46
pkg syscall (freebsd-arm64), const IPPROTO_RSVP ideal-int
pkg syscall (freebsd-arm64), const IPPROTO_RVD = 66

pkg syscall (darwin-386), const IPPROTO_RAW ideal-int
pkg syscall (darwin-386), const IPPROTO_RCCMON ideal-int
pkg syscall (darwin-386), const IPPROTO_RDP ideal-int
pkg syscall (darwin-386), const IPPROTO_ROUTING ideal-int
pkg syscall (darwin-386), const IPPROTO_RSVP ideal-int
pkg syscall (darwin-386), const IPPROTO_RVD ideal-int
pkg syscall (darwin-386), const IPPROTO_SATEXPAK ideal-int