1 // Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT.
2 3 // Copyright 2016 The Go Authors. All rights reserved.
4 // Use of this source code is governed by a BSD-style
5 // license that can be found in the LICENSE file.
6 7 //go:build !go1.16
8 9 package idna
10 11 // appendMapping appends the mapping for the respective rune. isMapped must be
12 // true. A mapping is a categorization of a rune as defined in UTS #46.
13 func (c info) appendMapping(b []byte, s []byte) []byte {
14 index := int(c >> indexShift)
15 if c&xorBit == 0 {
16 s := mappings[index:]
17 return append(b, s[1:s[0]+1]...)
18 }
19 b = append(b, s...)
20 if c&inlineXOR == inlineXOR {
21 // TODO: support and handle two-byte inline masks
22 b[len(b)-1] ^= byte(index)
23 } else {
24 for p := len(b) - int(xorData[index]); p < len(b); p++ {
25 index++
26 b[p] ^= xorData[index]
27 }
28 }
29 return b
30 }
31