package bidi

import "unicode/utf8"

// Properties provides access to BiDi properties of runes.
type Properties struct {
	entry uint8
	last  uint8
}

var trie = newBidiTrie(0)

// TODO: using this for bidirule reduces the running time by about 5%. Consider
// if this is worth exposing or if we can find a way to speed up the Class
// method.
//

	if c0 < 0xF8 { // 4-byte UTF-8
		return t.lookupValue(uint32(i), s[3])
	}
	return 0
}

// bidiTrie. Total size: 16128 bytes (15.75 KiB). Checksum: 8122d83e461996f.
type bidiTrie struct{}

func newBidiTrie(i int) *bidiTrie {
	return &bidiTrie{}
}

// lookupValue determines the type of block n and looks up the value for b.
func (t *bidiTrie) lookupValue(n uint32, b byte) uint8 {
	switch {
	default:

	if c0 < 0xF8 { // 4-byte UTF-8
		return t.lookupValue(uint32(i), s[3])
	}
	return 0
}

// bidiTrie. Total size: 15744 bytes (15.38 KiB). Checksum: b4c3b70954803b86.
type bidiTrie struct{}

func newBidiTrie(i int) *bidiTrie {
	return &bidiTrie{}
}

// lookupValue determines the type of block n and looks up the value for b.
func (t *bidiTrie) lookupValue(n uint32, b byte) uint8 {
	switch {
	default:

	if c0 < 0xF8 { // 4-byte UTF-8
		return t.lookupValue(uint32(i), s[3])
	}
	return 0
}

// bidiTrie. Total size: 16896 bytes (16.50 KiB). Checksum: 6f0927067913dc6d.
type bidiTrie struct{}

func newBidiTrie(i int) *bidiTrie {
	return &bidiTrie{}
}

// lookupValue determines the type of block n and looks up the value for b.
func (t *bidiTrie) lookupValue(n uint32, b byte) uint8 {
	switch {
	default:

	if c0 < 0xF8 { // 4-byte UTF-8
		return t.lookupValue(uint32(i), s[3])
	}
	return 0
}

// bidiTrie. Total size: 16512 bytes (16.12 KiB). Checksum: 2a9cf1317f2ffaa.
type bidiTrie struct{}

func newBidiTrie(i int) *bidiTrie {
	return &bidiTrie{}
}

// lookupValue determines the type of block n and looks up the value for b.
func (t *bidiTrie) lookupValue(n uint32, b byte) uint8 {
	switch {
	default:

	if c0 < 0xF8 { // 4-byte UTF-8
		return t.lookupValue(uint32(i), s[3])
	}
	return 0
}

// bidiTrie. Total size: 17408 bytes (17.00 KiB). Checksum: df85fcbfe9b8377f.
type bidiTrie struct{}

func newBidiTrie(i int) *bidiTrie {
	return &bidiTrie{}
}

// lookupValue determines the type of block n and looks up the value for b.
func (t *bidiTrie) lookupValue(n uint32, b byte) uint8 {
	switch {
	default:

	if c0 < 0xF8 { // 4-byte UTF-8
		return t.lookupValue(uint32(i), s[3])
	}
	return 0
}

// bidiTrie. Total size: 19904 bytes (19.44 KiB). Checksum: b1f201ed2debb6c8.
type bidiTrie struct{}

func newBidiTrie(i int) *bidiTrie {
	return &bidiTrie{}
}

// lookupValue determines the type of block n and looks up the value for b.
func (t *bidiTrie) lookupValue(n uint32, b byte) uint8 {
	switch {
	default: