GtkSharp/Source/OldStuff/audit/WellFormedXmlWriter.cs

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//
// WellFormedXmlWriter.cs
//
// Author:
// Atsushi Enomoto <atsushi@ximian.com>
//
// Copyright (C) 2006 Novell, Inc. http://www.novell.com
//
using System;
using System.Globalization;
using System.Collections;
using System.Xml;
namespace Mono.AssemblyCompare {
public class WellFormedXmlWriter : DefaultXmlWriter
{
public static bool IsValid (int ch)
{
return !IsInvalid (ch);
}
public static bool IsInvalid (int ch)
{
switch (ch) {
case 9:
case 10:
case 13:
return false;
}
if (ch < 32)
return true;
if (ch < 0xD800)
return false;
if (ch < 0xE000)
return true;
if (ch < 0xFFFE)
return false;
if (ch < 0x10000)
return true;
if (ch < 0x110000)
return false;
else
return true;
}
public static int IndexOfInvalid (string s, bool allowSurrogate)
{
for (int i = 0; i < s.Length; i++)
if (IsInvalid (s [i])) {
if (!allowSurrogate ||
i + 1 == s.Length ||
s [i] < '\uD800' ||
s [i] >= '\uDC00' ||
s [i + 1] < '\uDC00' ||
s [i + 1] >= '\uE000')
return i;
i++;
}
return -1;
}
public static int IndexOfInvalid (char [] s, int start, int length, bool allowSurrogate)
{
int end = start + length;
if (s.Length < end)
throw new ArgumentOutOfRangeException ("length");
for (int i = start; i < end; i++)
if (IsInvalid (s [i])) {
if (!allowSurrogate ||
i + 1 == end ||
s [i] < '\uD800' ||
s [i] >= '\uDC00' ||
s [i + 1] < '\uDC00' ||
s [i + 1] >= '\uE000')
return i;
i++;
}
return -1;
}
public WellFormedXmlWriter (XmlWriter writer) : base (writer)
{
}
public override void WriteString (string text)
{
int i = IndexOfInvalid (text, true);
if (i >= 0) {
char [] arr = text.ToCharArray ();
Writer.WriteChars (arr, 0, i);
WriteChars (arr, i, arr.Length - i);
} else {
// no invalid character.
Writer.WriteString (text);
}
}
public override void WriteChars (char [] text, int idx, int length)
{
int start = idx;
int end = idx + length;
while ((idx = IndexOfInvalid (text, start, length, true)) >= 0) {
if (start < idx)
Writer.WriteChars (text, start, idx - start);
Writer.WriteString (String.Format (CultureInfo.InvariantCulture,
text [idx] < 0x80 ? "\\x{0:X02}" : "\\u{0:X04}",
(int) text [idx]));
length -= idx - start + 1;
start = idx + 1;
}
if (start < end)
Writer.WriteChars (text, start, end - start);
}
}
public class DefaultXmlWriter : XmlWriter
{
XmlWriter writer;
public DefaultXmlWriter (XmlWriter writer)
{
this.writer = writer;
}
protected XmlWriter Writer {
get { return writer; }
}
public override void Close ()
{
writer.Close ();
}
public override void Flush ()
{
writer.Flush ();
}
public override string LookupPrefix (string ns)
{
return writer.LookupPrefix (ns);
}
public override void WriteBase64 (byte [] buffer, int index, int count)
{
writer.WriteBase64 (buffer, index, count);
}
public override void WriteBinHex (byte [] buffer, int index, int count)
{
writer.WriteBinHex (buffer, index, count);
}
public override void WriteCData (string text)
{
writer.WriteCData (text);
}
public override void WriteCharEntity (char ch)
{
writer.WriteCharEntity (ch);
}
public override void WriteChars (char [] buffer, int index, int count)
{
writer.WriteChars (buffer, index, count);
}
public override void WriteComment (string text)
{
writer.WriteComment (text);
}
public override void WriteDocType (string name, string pubid, string sysid, string subset)
{
writer.WriteDocType (name, pubid, sysid, subset);
}
public override void WriteEndAttribute ()
{
writer.WriteEndAttribute ();
}
public override void WriteEndDocument ()
{
writer.WriteEndDocument ();
}
public override void WriteEndElement ()
{
writer.WriteEndElement ();
}
public override void WriteEntityRef (string name)
{
writer.WriteEntityRef (name);
}
public override void WriteFullEndElement ()
{
writer.WriteFullEndElement ();
}
public override void WriteName (string name)
{
writer.WriteName (name);
}
public override void WriteNmToken (string name)
{
writer.WriteNmToken (name);
}
public override void WriteNode (XmlReader reader, bool defattr)
{
writer.WriteNode (reader, defattr);
}
public override void WriteProcessingInstruction (string name, string text)
{
writer.WriteProcessingInstruction (name, text);
}
public override void WriteQualifiedName (string localName, string ns)
{
writer.WriteQualifiedName (localName, ns);
}
public override void WriteRaw (string data)
{
writer.WriteRaw (data);
}
public override void WriteRaw (char [] buffer, int index, int count)
{
writer.WriteRaw (buffer, index, count);
}
public override void WriteStartAttribute (string prefix, string localName, string ns)
{
writer.WriteStartAttribute (prefix, localName, ns);
}
public override void WriteStartDocument (bool standalone)
{
writer.WriteStartDocument (standalone);
}
public override void WriteStartDocument ()
{
writer.WriteStartDocument ();
}
public override void WriteStartElement (string prefix, string localName, string ns)
{
writer.WriteStartElement (prefix, localName, ns);
}
public override void WriteString (string text)
{
writer.WriteString (text);
}
public override void WriteSurrogateCharEntity (char lowChar, char highChar)
{
writer.WriteSurrogateCharEntity (lowChar, highChar);
}
public override void WriteWhitespace (string ws)
{
writer.WriteWhitespace (ws);
}
public override WriteState WriteState {
get {
return writer.WriteState;
}
}
public override string XmlLang {
get {
return writer.XmlLang;
}
}
public override XmlSpace XmlSpace {
get {
return writer.XmlSpace;
}
}
}
}