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author | Wim <wim@42.be> | 2019-12-26 23:12:28 +0100 |
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committer | Wim <wim@42.be> | 2020-03-01 22:19:33 +0100 |
commit | 795a8705c3fdc5bf55e83d382e7d3ff233896a0b (patch) | |
tree | 46ac43e487102de7ea21a823a7a7902ae9493f88 /vendor/golang.org/x/net/html/atom/atom.go | |
parent | 3af0dc3b3a5bfaffe37770c437427f1e99402405 (diff) | |
download | matterbridge-msglm-795a8705c3fdc5bf55e83d382e7d3ff233896a0b.tar.gz matterbridge-msglm-795a8705c3fdc5bf55e83d382e7d3ff233896a0b.tar.bz2 matterbridge-msglm-795a8705c3fdc5bf55e83d382e7d3ff233896a0b.zip |
Add initial Microsoft Teams support
Documentation on https://github.com/42wim/matterbridge/wiki/MS-Teams-setup
Diffstat (limited to 'vendor/golang.org/x/net/html/atom/atom.go')
-rw-r--r-- | vendor/golang.org/x/net/html/atom/atom.go | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/vendor/golang.org/x/net/html/atom/atom.go b/vendor/golang.org/x/net/html/atom/atom.go new file mode 100644 index 00000000..cd0a8ac1 --- /dev/null +++ b/vendor/golang.org/x/net/html/atom/atom.go @@ -0,0 +1,78 @@ +// Copyright 2012 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 atom provides integer codes (also known as atoms) for a fixed set of +// frequently occurring HTML strings: tag names and attribute keys such as "p" +// and "id". +// +// Sharing an atom's name between all elements with the same tag can result in +// fewer string allocations when tokenizing and parsing HTML. Integer +// comparisons are also generally faster than string comparisons. +// +// The value of an atom's particular code is not guaranteed to stay the same +// between versions of this package. Neither is any ordering guaranteed: +// whether atom.H1 < atom.H2 may also change. The codes are not guaranteed to +// be dense. The only guarantees are that e.g. looking up "div" will yield +// atom.Div, calling atom.Div.String will return "div", and atom.Div != 0. +package atom // import "golang.org/x/net/html/atom" + +// Atom is an integer code for a string. The zero value maps to "". +type Atom uint32 + +// String returns the atom's name. +func (a Atom) String() string { + start := uint32(a >> 8) + n := uint32(a & 0xff) + if start+n > uint32(len(atomText)) { + return "" + } + return atomText[start : start+n] +} + +func (a Atom) string() string { + return atomText[a>>8 : a>>8+a&0xff] +} + +// fnv computes the FNV hash with an arbitrary starting value h. +func fnv(h uint32, s []byte) uint32 { + for i := range s { + h ^= uint32(s[i]) + h *= 16777619 + } + return h +} + +func match(s string, t []byte) bool { + for i, c := range t { + if s[i] != c { + return false + } + } + return true +} + +// Lookup returns the atom whose name is s. It returns zero if there is no +// such atom. The lookup is case sensitive. +func Lookup(s []byte) Atom { + if len(s) == 0 || len(s) > maxAtomLen { + return 0 + } + h := fnv(hash0, s) + if a := table[h&uint32(len(table)-1)]; int(a&0xff) == len(s) && match(a.string(), s) { + return a + } + if a := table[(h>>16)&uint32(len(table)-1)]; int(a&0xff) == len(s) && match(a.string(), s) { + return a + } + return 0 +} + +// String returns a string whose contents are equal to s. In that sense, it is +// equivalent to string(s) but may be more efficient. +func String(s []byte) string { + if a := Lookup(s); a != 0 { + return a.String() + } + return string(s) +} |