//
// This option corresponds to the VerifyDnsLength flag in UTS #46.
func VerifyDNSLength(verify bool) Option {
	return func(o *options) { o.verifyDNSLength = verify }
}

// RemoveLeadingDots removes leading label separators. Leading runes that map to
// dots, such as U+3002 IDEOGRAPHIC FULL STOP, are removed as well.
func RemoveLeadingDots(remove bool) Option {
	return func(o *options) { o.removeLeadingDots = remove }
}

// the offset (relative to the source start) of a digit >= base
// in *invalid, if *invalid < 0.
// digits returns a bitset describing whether the sequence contained
// digits (bit 0 is set), or separators '_' (bit 1 is set).
func (s *Scanner) digits(base int, invalid *int) (digsep int) {
	if base <= 10 {
		max := rune('0' + base)
		for isDecimal(s.ch) || s.ch == '_' {
			ds := 1
			if s.ch == '_' {
				ds = 2

// os.PathSeparator respectively) but are not inherited in subprocess
// environments.
//
// Adding single quotes around text keeps spaces in that text from being treated
// as word separators and also disables environment variable expansion.
// Inside a single-quoted block of text, a repeated single quote indicates
// a literal single quote, as in:
//
//	'Don''t communicate by sharing memory.'
//

	VSPLTH   $3, V25, V31 // Splat mask
	VSPLTH   $0, V0, V1   // Splat 1st 2 bytes of sep
	VSPLTISB $0, V10      // Clear V10

	// First case: 2 byte separator
	// V1: 2 byte separator splatted
	// V2: 16 bytes at addr
	// V4: 16 bytes at addr+1
	// Compare 2 byte separator at start
	// and at start+1. Use VSEL to combine
	// those results to find the first
	// matching start byte, returning
	// that value when found. Loop as

			// :ENV:=, these two are not correct variables.
			name: "no-predefined-kv-with-values-contain-ENV-separator-invalid-format",
			in:   "/inject/:ENV:rootpage1=efgh:ENV:=abb:ENV:=",
			want: map[string]string{"ROOTPAGE1": "efgh"},
		},
		{
			// this is to test that the path is an url encoded string, still using
			// slash as separators
			name: "no-predefined-kv-with-mixed-values",
			in: func() string {

		// We disallow some shell special characters: " ' * < > ? ` |
		// (Note that some of those are disallowed by the Windows file system as well.)
		// We also disallow path separators / : and \ (fileNameOK is only called on path element characters).
		// We allow spaces (U+0020) in file names.
		const allowed = "!#$%&()+,-.=@[]^_{}~ "
		if '0' <= r && r <= '9' || 'A' <= r && r <= 'Z' || 'a' <= r && r <= 'z' {

		{Float, "0x0p", "0x0p", "exponent has no digits"},
		{Float, "0xeP-", "0xeP-", "exponent has no digits"},
		{Float, "0x1234PAB", "0x1234P AB", "exponent has no digits"},
		{Float, "0x1.2p1a", "0x1.2p1 a", ""},

		// separators
		{Int, "0b_1000_0001", "0b_1000_0001", ""},
		{Int, "0o_600", "0o_600", ""},
		{Int, "0_466", "0_466", ""},
		{Int, "1_000", "1_000", ""},
		{Float, "1_000.000_1", "1_000.000_1", ""},

		}
	}
	return path
}

// trim trims the directory prefix from the path, paying attention
// to the path separator. If they are the same string or the prefix
// is not present the original is returned. The boolean reports whether
// the prefix is present. That path and prefix have slashes for separators.
func trim(path, prefix string) (string, bool) {
	if !strings.HasPrefix(path, prefix) {
		return path, false
	}

readonly KUBE_NODE_BINARIES_WIN=("${KUBE_NODE_BINARIES[@]/%/.exe}")

# ------------
# NOTE: All functions that return lists should use newlines.
# bash functions can't return arrays, and spaces are tricky, so newline
# separators are the preferred pattern.
# To transform a string of newline-separated items to an array, use kube::util::read-array:
# kube::util::read-array FOO < <(kube::golang::dups a b c a)
#

		{token.FLOAT, "0x1234PAB", "0x1234P AB", "exponent has no digits"},
		{token.FLOAT, "0x1.2p1a", "0x1.2p1 a", ""},

		{token.IMAG, "0xf00.bap+12i", "0xf00.bap+12i", ""},

		// separators
		{token.INT, "0b_1000_0001", "0b_1000_0001", ""},
		{token.INT, "0o_600", "0o_600", ""},
		{token.INT, "0_466", "0_466", ""},
		{token.INT, "1_000", "1_000", ""},