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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libgo/] [go/] [exp/] [norm/] [input.go] - Rev 861
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// Copyright 2011 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 norm
import "unicode/utf8"
type input interface {
skipASCII(p int) int
skipNonStarter(p int) int
appendSlice(buf []byte, s, e int) []byte
copySlice(buf []byte, s, e int)
charinfo(p int) (uint16, int)
decomposeNFC(p int) uint16
decomposeNFKC(p int) uint16
hangul(p int) rune
}
type inputString string
func (s inputString) skipASCII(p int) int {
for ; p < len(s) && s[p] < utf8.RuneSelf; p++ {
}
return p
}
func (s inputString) skipNonStarter(p int) int {
for ; p < len(s) && !utf8.RuneStart(s[p]); p++ {
}
return p
}
func (s inputString) appendSlice(buf []byte, b, e int) []byte {
for i := b; i < e; i++ {
buf = append(buf, s[i])
}
return buf
}
func (s inputString) copySlice(buf []byte, b, e int) {
copy(buf, s[b:e])
}
func (s inputString) charinfo(p int) (uint16, int) {
return charInfoTrie.lookupString(string(s[p:]))
}
func (s inputString) decomposeNFC(p int) uint16 {
return nfcDecompTrie.lookupStringUnsafe(string(s[p:]))
}
func (s inputString) decomposeNFKC(p int) uint16 {
return nfkcDecompTrie.lookupStringUnsafe(string(s[p:]))
}
func (s inputString) hangul(p int) rune {
if !isHangulString(string(s[p:])) {
return 0
}
rune, _ := utf8.DecodeRuneInString(string(s[p:]))
return rune
}
type inputBytes []byte
func (s inputBytes) skipASCII(p int) int {
for ; p < len(s) && s[p] < utf8.RuneSelf; p++ {
}
return p
}
func (s inputBytes) skipNonStarter(p int) int {
for ; p < len(s) && !utf8.RuneStart(s[p]); p++ {
}
return p
}
func (s inputBytes) appendSlice(buf []byte, b, e int) []byte {
return append(buf, s[b:e]...)
}
func (s inputBytes) copySlice(buf []byte, b, e int) {
copy(buf, s[b:e])
}
func (s inputBytes) charinfo(p int) (uint16, int) {
return charInfoTrie.lookup(s[p:])
}
func (s inputBytes) decomposeNFC(p int) uint16 {
return nfcDecompTrie.lookupUnsafe(s[p:])
}
func (s inputBytes) decomposeNFKC(p int) uint16 {
return nfkcDecompTrie.lookupUnsafe(s[p:])
}
func (s inputBytes) hangul(p int) rune {
if !isHangul(s[p:]) {
return 0
}
rune, _ := utf8.DecodeRune(s[p:])
return rune
}
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