mirror of
https://github.com/golang/go
synced 2024-11-12 07:10:22 -07:00
4f61fc96b2
The ken directory is untouched so we have some examples with explicit semis. R=gri CC=golang-dev https://golang.org/cl/2157041
55 lines
1.1 KiB
Go
55 lines
1.1 KiB
Go
// $G $F.go && $L $F.$A && ./$A.out
|
|
|
|
// Copyright 2009 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package main
|
|
|
|
import "utf8"
|
|
|
|
func main() {
|
|
var chars [6] int
|
|
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 int
|
|
r, w = utf8.DecodeRuneInString(s[i:len(s)])
|
|
if w == 0 { panic("zero width in string") }
|
|
if r != chars[j] { panic("wrong value from string") }
|
|
j++
|
|
}
|
|
// encoded as bytes: 'a' 'b' 'c' e6 97 a5 e6 9c ac e8 aa 9e
|
|
const L = 12
|
|
if L != l { panic("wrong length constructing array") }
|
|
a := make([]byte, L)
|
|
a[0] = 'a'
|
|
a[1] = 'b'
|
|
a[2] = 'c'
|
|
a[3] = 0xe6
|
|
a[4] = 0x97
|
|
a[5] = 0xa5
|
|
a[6] = 0xe6
|
|
a[7] = 0x9c
|
|
a[8] = 0xac
|
|
a[9] = 0xe8
|
|
a[10] = 0xaa
|
|
a[11] = 0x9e
|
|
for w, i, j := 0,0,0; i < L; i += w {
|
|
var r int
|
|
r, w = utf8.DecodeRune(a[i:L])
|
|
if w == 0 { panic("zero width in bytes") }
|
|
if r != chars[j] { panic("wrong value from bytes") }
|
|
j++
|
|
}
|
|
}
|