import (
	"internal/filepathlite"
	"syscall"
	"time"
)

// These constants aren't in the syscall package, which is frozen.
// Values taken from golang.org/x/sys/unix.
const (
	_S_IFNAM  = 0x5000
	_S_IFDOOR = 0xd000
	_S_IFPORT = 0xe000
)

func fillFileStatFromSys(fs *fileStat, name string) {
	fs.name = filepathlite.Base(name)
	fs.size = fs.sys.Size
	fs.modTime = time.Unix(fs.sys.Mtim.Unix())

}

var encodeTests = []encodeTest{
	{[]rune{1, 2, 3, 4}, []uint16{1, 2, 3, 4}},
	{[]rune{0xffff, 0x10000, 0x10001, 0x12345, 0x10ffff},
		[]uint16{0xffff, 0xd800, 0xdc00, 0xd800, 0xdc01, 0xd808, 0xdf45, 0xdbff, 0xdfff}},
	{[]rune{'a', 'b', 0xd7ff, 0xd800, 0xdfff, 0xe000, 0x110000, -1},
		[]uint16{'a', 'b', 0xd7ff, 0xfffd, 0xfffd, 0xe000, 0xfffd, 0xfffd}},
}

func TestEncode(t *testing.T) {
	for _, tt := range encodeTests {

	maxRune         = '\U0010FFFF' // Maximum valid Unicode code point.
)

const (
	// 0xd800-0xdc00 encodes the high 10 bits of a pair.
	// 0xdc00-0xe000 encodes the low 10 bits of a pair.
	// the value is those 20 bits plus 0x10000.
	surr1 = 0xd800
	surr2 = 0xdc00
	surr3 = 0xe000

	surrSelf = 0x10000
)

// IsSurrogate reports whether the specified Unicode code point
// can appear in a surrogate pair.

        char c;
        for (int i = 0; i < in.length(); i++) {
            c = in.charAt(i);
            if (c == 0x9 || c == 0xA || c == 0xD || c >= 0x20 && c <= 0xD7FF || c >= 0xE000 && c <= 0xFFFD
                    || c >= 0x10000 && c <= 0x10FFFF) {
                buf.append(c);
            }
        }
        return buf.toString().trim();
    }

	S_IFIFO                                 = 0x1000
	S_IFLNK                                 = 0xa000
	S_IFMT                                  = 0xf000
	S_IFREG                                 = 0x8000
	S_IFSOCK                                = 0xc000
	S_IFWHT                                 = 0xe000
	S_IREAD                                 = 0x100
	S_IRGRP                                 = 0x20

	S_IFCHR                           = 0x2000
	S_IFDIR                           = 0x4000
	S_IFIFO                           = 0x1000
	S_IFLNK                           = 0xa000
	S_IFMT                            = 0xf000
	S_IFREG                           = 0x8000
	S_IFSOCK                          = 0xc000
	S_IFWHT                           = 0xe000
	S_IREAD                           = 0x100

	S_IFIFO                                 = 0x1000
	S_IFLNK                                 = 0xa000
	S_IFMT                                  = 0xf000
	S_IFREG                                 = 0x8000
	S_IFSOCK                                = 0xc000
	S_IFWHT                                 = 0xe000
	S_IREAD                                 = 0x100
	S_IRGRP                                 = 0x20

	S_IFBLK                       = 0x6000
	S_IFCHR                       = 0x2000
	S_IFDIR                       = 0x4000
	S_IFDOOR                      = 0xd000
	S_IFIFO                       = 0x1000
	S_IFLNK                       = 0xa000
	S_IFMT                        = 0xf000
	S_IFNAM                       = 0x5000
	S_IFPORT                      = 0xe000
	S_IFREG                       = 0x8000

	S_IFCHR                           = 0x2000
	S_IFDIR                           = 0x4000
	S_IFIFO                           = 0x1000
	S_IFLNK                           = 0xa000
	S_IFMT                            = 0xf000
	S_IFREG                           = 0x8000
	S_IFSOCK                          = 0xc000
	S_IFWHT                           = 0xe000
	S_IREAD                           = 0x100

	S_IFCHR                           = 0x2000
	S_IFDIR                           = 0x4000
	S_IFIFO                           = 0x1000
	S_IFLNK                           = 0xa000
	S_IFMT                            = 0xf000
	S_IFREG                           = 0x8000
	S_IFSOCK                          = 0xc000
	S_IFWHT                           = 0xe000
	S_IREAD                           = 0x100