Files
skopeo/vendor/golang.org/x/net/idna/trie.go
Miloslav Trmač 0caee746fb Vendor after merging mtrmac/image:openpgp, + other updates
Primarily vendor after merging mtrmac/image:openpgp.

Then update for the SigningMechanism API change.

Also skip signing tests if the GPG mechanism does not support signing.

Also abort some of the tests early instead of trying to use invalid (or
nil) values.

The current master of image-tools does not build with Go 1.6, so keep
using an older release.

Also requires adding a few more dependencies of our updated
dependencies.
2017-03-29 20:54:18 +02:00

73 lines
1.8 KiB
Go

// Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT.
// Copyright 2016 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 idna
// appendMapping appends the mapping for the respective rune. isMapped must be
// true. A mapping is a categorization of a rune as defined in UTS #46.
func (c info) appendMapping(b []byte, s string) []byte {
index := int(c >> indexShift)
if c&xorBit == 0 {
s := mappings[index:]
return append(b, s[1:s[0]+1]...)
}
b = append(b, s...)
if c&inlineXOR == inlineXOR {
// TODO: support and handle two-byte inline masks
b[len(b)-1] ^= byte(index)
} else {
for p := len(b) - int(xorData[index]); p < len(b); p++ {
index++
b[p] ^= xorData[index]
}
}
return b
}
// Sparse block handling code.
type valueRange struct {
value uint16 // header: value:stride
lo, hi byte // header: lo:n
}
type sparseBlocks struct {
values []valueRange
offset []uint16
}
var idnaSparse = sparseBlocks{
values: idnaSparseValues[:],
offset: idnaSparseOffset[:],
}
// Don't use newIdnaTrie to avoid unconditional linking in of the table.
var trie = &idnaTrie{}
// lookup determines the type of block n and looks up the value for b.
// For n < t.cutoff, the block is a simple lookup table. Otherwise, the block
// is a list of ranges with an accompanying value. Given a matching range r,
// the value for b is by r.value + (b - r.lo) * stride.
func (t *sparseBlocks) lookup(n uint32, b byte) uint16 {
offset := t.offset[n]
header := t.values[offset]
lo := offset + 1
hi := lo + uint16(header.lo)
for lo < hi {
m := lo + (hi-lo)/2
r := t.values[m]
if r.lo <= b && b <= r.hi {
return r.value + uint16(b-r.lo)*header.value
}
if b < r.lo {
hi = m
} else {
lo = m + 1
}
}
return 0
}