mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-12-26 23:10:22 +00:00
138 lines
3.0 KiB
Go
138 lines
3.0 KiB
Go
|
// 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.
|
||
|
|
||
|
// Copied and modified from Go 1.14 stdlib's encoding/xml
|
||
|
|
||
|
package xml
|
||
|
|
||
|
import (
|
||
|
"unicode/utf8"
|
||
|
)
|
||
|
|
||
|
// Copied from Go 1.14 stdlib's encoding/xml
|
||
|
var (
|
||
|
escQuot = []byte(""") // shorter than """
|
||
|
escApos = []byte("'") // shorter than "'"
|
||
|
escAmp = []byte("&")
|
||
|
escLT = []byte("<")
|
||
|
escGT = []byte(">")
|
||
|
escTab = []byte("	")
|
||
|
escNL = []byte("
")
|
||
|
escCR = []byte("
")
|
||
|
escFFFD = []byte("\uFFFD") // Unicode replacement character
|
||
|
|
||
|
// Additional Escapes
|
||
|
escNextLine = []byte("…")
|
||
|
escLS = []byte("
")
|
||
|
)
|
||
|
|
||
|
// Decide whether the given rune is in the XML Character Range, per
|
||
|
// the Char production of https://www.xml.com/axml/testaxml.htm,
|
||
|
// Section 2.2 Characters.
|
||
|
func isInCharacterRange(r rune) (inrange bool) {
|
||
|
return r == 0x09 ||
|
||
|
r == 0x0A ||
|
||
|
r == 0x0D ||
|
||
|
r >= 0x20 && r <= 0xD7FF ||
|
||
|
r >= 0xE000 && r <= 0xFFFD ||
|
||
|
r >= 0x10000 && r <= 0x10FFFF
|
||
|
}
|
||
|
|
||
|
// TODO: When do we need to escape the string?
|
||
|
// Based on encoding/xml escapeString from the Go Standard Library.
|
||
|
// https://golang.org/src/encoding/xml/xml.go
|
||
|
func escapeString(e writer, s string) {
|
||
|
var esc []byte
|
||
|
last := 0
|
||
|
for i := 0; i < len(s); {
|
||
|
r, width := utf8.DecodeRuneInString(s[i:])
|
||
|
i += width
|
||
|
switch r {
|
||
|
case '"':
|
||
|
esc = escQuot
|
||
|
case '\'':
|
||
|
esc = escApos
|
||
|
case '&':
|
||
|
esc = escAmp
|
||
|
case '<':
|
||
|
esc = escLT
|
||
|
case '>':
|
||
|
esc = escGT
|
||
|
case '\t':
|
||
|
esc = escTab
|
||
|
case '\n':
|
||
|
esc = escNL
|
||
|
case '\r':
|
||
|
esc = escCR
|
||
|
case '\u0085':
|
||
|
// Not escaped by stdlib
|
||
|
esc = escNextLine
|
||
|
case '\u2028':
|
||
|
// Not escaped by stdlib
|
||
|
esc = escLS
|
||
|
default:
|
||
|
if !isInCharacterRange(r) || (r == 0xFFFD && width == 1) {
|
||
|
esc = escFFFD
|
||
|
break
|
||
|
}
|
||
|
continue
|
||
|
}
|
||
|
e.WriteString(s[last : i-width])
|
||
|
e.Write(esc)
|
||
|
last = i
|
||
|
}
|
||
|
e.WriteString(s[last:])
|
||
|
}
|
||
|
|
||
|
// escapeText writes to w the properly escaped XML equivalent
|
||
|
// of the plain text data s. If escapeNewline is true, newline
|
||
|
// characters will be escaped.
|
||
|
//
|
||
|
// Based on encoding/xml escapeText from the Go Standard Library.
|
||
|
// https://golang.org/src/encoding/xml/xml.go
|
||
|
func escapeText(e writer, s []byte) {
|
||
|
var esc []byte
|
||
|
last := 0
|
||
|
for i := 0; i < len(s); {
|
||
|
r, width := utf8.DecodeRune(s[i:])
|
||
|
i += width
|
||
|
switch r {
|
||
|
case '"':
|
||
|
esc = escQuot
|
||
|
case '\'':
|
||
|
esc = escApos
|
||
|
case '&':
|
||
|
esc = escAmp
|
||
|
case '<':
|
||
|
esc = escLT
|
||
|
case '>':
|
||
|
esc = escGT
|
||
|
case '\t':
|
||
|
esc = escTab
|
||
|
case '\n':
|
||
|
// This always escapes newline, which is different than stdlib's optional
|
||
|
// escape of new line.
|
||
|
esc = escNL
|
||
|
case '\r':
|
||
|
esc = escCR
|
||
|
case '\u0085':
|
||
|
// Not escaped by stdlib
|
||
|
esc = escNextLine
|
||
|
case '\u2028':
|
||
|
// Not escaped by stdlib
|
||
|
esc = escLS
|
||
|
default:
|
||
|
if !isInCharacterRange(r) || (r == 0xFFFD && width == 1) {
|
||
|
esc = escFFFD
|
||
|
break
|
||
|
}
|
||
|
continue
|
||
|
}
|
||
|
e.Write(s[last : i-width])
|
||
|
e.Write(esc)
|
||
|
last = i
|
||
|
}
|
||
|
e.Write(s[last:])
|
||
|
}
|