if err != nil {
		t.Fatal(err)
	}
	if n != 3 {
		t.Fatalf("expected 3 items consumed, got %d", n)
	}
	if a.rune != '1' || b.rune != '2' || c.rune != '➂' {
		t.Errorf("bad scan rune: %q %q %q should be '1' '2' '➂'", a.rune, b.rune, c.rune)
	}
	if a.size != 1 || b.size != 1 || c.size != 3 {
		t.Errorf("bad scan size: %q %q %q should be 1 1 3", a.size, b.size, c.size)
	}
}

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package unicode_test

import (
	"testing"
	. "unicode"
)

var testDigit = []rune{
	0x0030,
	0x0039,
	0x0661,
	0x06F1,
	0x07C9,
	0x0966,
	0x09EF,
	0x0A66,
	0x0AEF,
	0x0B66,
	0x0B6F,
	0x0BE6,
	0x0BEF,
	0x0C66,
	0x0CEF,
	0x0D66,
	0x0D6F,
	0x0E50,

			panic("imperfect hash")
		}
		keywordMap[h] = tok
	}
}

func lower(ch rune) rune     { return ('a' - 'A') | ch } // returns lower-case ch iff ch is ASCII letter
func isLetter(ch rune) bool  { return 'a' <= lower(ch) && lower(ch) <= 'z' || ch == '_' }
func isDecimal(ch rune) bool { return '0' <= ch && ch <= '9' }
func isHex(ch rune) bool     { return '0' <= ch && ch <= '9' || 'a' <= lower(ch) && lower(ch) <= 'f' }

func f12(b []byte) [2][]byte { return [2][]byte{b, b} }

var a12 = f12([]byte("hello"))
var a13 = f12([]byte{1, 2, 3})
var a14 = f12(make([]byte, 1))

func f15(b []rune) [2][]rune { return [2][]rune{b, b} }

var a15 = f15([]rune("hello"))
var a16 = f15([]rune{1, 2, 3})

type Same struct {
	a, b interface{}
}

var same = []Same{
	{a1, b1},
	{a2, b2},
	{a3, b3},
	{a4, b4},
	{a5, b5},
	{a6, b6},

package main

import "unicode/utf8"

func main() {
	var chars [6]rune
	chars[0] = 'a'
	chars[1] = 'b'
	chars[2] = 'c'
	chars[3] = '\u65e5'
	chars[4] = '\u672c'
	chars[5] = '\u8a9e'
	s := ""
	for i := 0; i < 6; i++ {
		s += string(chars[i])
	}
	var l = len(s)
	for w, i, j := 0, 0, 0; i < l; i += w {
		var r rune
		r, w = utf8.DecodeRuneInString(s[i:len(s)])
		if w == 0 {

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package a

import "go/build"

type (
	Float64 = float64
	Rune    = rune
)

type (
	Int       int
	IntAlias  = Int
	IntAlias2 = IntAlias
	S         struct {
		Int
		IntAlias
		IntAlias2
	}
)

type (
	Context = build.Context
)

type (

			} else {
				fmt.Fprintf(b, "%T(%v)\n", t, t)
			}
		case string:
			fmt.Fprintf(b, "string(%q)\n", t)
		case rune: // int32
			// Although rune and int32 are represented by the same type, only a subset
			// of valid int32 values can be expressed as rune literals. Notably,
			// negative numbers, surrogate halves, and values above unicode.MaxRune
			// have no quoted representation.
			//

	return dstL.n, srcL.p, err
}

// Deprecated: Use runes.Remove instead.
func RemoveFunc(f func(r rune) bool) Transformer {
	return removeF(f)
}

type removeF func(r rune) bool

func (removeF) Reset() {}

// Transform implements the Transformer interface.
func (t removeF) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
	for r, sz := rune(0), 0; len(src) > 0; src = src[sz:] {

		got := exactly16Bytes(str)
		if len(got) != 16 {
			t.Errorf("exactly16Bytes(%q) is %q, length %d", str, got, len(got))
		}
		// Make sure it is full runes.
		for _, c := range got {
			if c == utf8.RuneError {
				t.Errorf("exactly16Bytes(%q) is %q, has partial rune", str, got)
			}
		}
	}

func ExampleContainsFunc() {
	f := func(r rune) bool {
		return r == 'a' || r == 'e' || r == 'i' || r == 'o' || r == 'u'
	}
	fmt.Println(strings.ContainsFunc("hello", f))
	fmt.Println(strings.ContainsFunc("rhythms", f))
	// Output:
	// true
	// false
}

func ExampleCount() {
	fmt.Println(strings.Count("cheese", "e"))
	fmt.Println(strings.Count("five", "")) // before & after each rune
	// Output:
	// 3
	// 5
}