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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
// WARNING: This file is generated and should not be modified directly. Instead,
// modify XmlTextWriterGenerator.cxxbak and run gen.bat in the same directory.
// This batch file will execute the following commands:
//
// Before running below command, rename XmlRawTextWriterGenerator.cxxbak to XmlRawTextWriterGenerator.cxx
// cl.exe /C /EP /D _XML_ENCODED_TEXT_WRITER XmlRawTextWriterGenerator.cxx > XmlEncodedRawTextWriter.cs
//
// Because these two implementations of XmlTextWriter are so similar, the C++ preprocessor
// is used to generate each implementation from one template file, using macros and ifdefs.
// Note: This file was generated without #define SILVERLIGHT
using System;
using System.IO;
using Microsoft.Xml;
using System.Text;
using System.Diagnostics;
using System.Globalization;
namespace Microsoft.Xml
{
using System;
// Concrete implementation of XmlWriter abstract class that serializes events as encoded XML
// text. The general-purpose XmlEncodedTextWriter uses the Encoder class to output to any
// encoding. The XmlUtf8TextWriter class combined the encoding operation with serialization
// in order to achieve better performance.
internal partial class XmlUtf8RawTextWriter : XmlRawWriter
{
//
// Fields
//
#if ASYNC
private readonly bool useAsync;
#endif
// main buffer
protected byte[] bufBytes;
// output stream
protected Stream stream;
// encoding of the stream or text writer
protected Encoding encoding;
// char type tables
protected XmlCharType xmlCharType = XmlCharType.Instance;
// buffer positions
protected int bufPos = 1; // buffer position starts at 1, because we need to be able to safely step back -1 in case we need to
// close an empty element or in CDATA section detection of double ]; _BUFFER[0] will always be 0
protected int textPos = 1; // text end position; don't indent first element, pi, or comment
protected int contentPos; // element content end position
protected int cdataPos; // cdata end position
protected int attrEndPos; // end of the last attribute
protected int bufLen = BUFSIZE;
// flags
protected bool writeToNull;
protected bool hadDoubleBracket;
protected bool inAttributeValue;
// writer settings
protected NewLineHandling newLineHandling;
protected bool closeOutput;
protected bool omitXmlDeclaration;
protected string newLineChars;
protected bool checkCharacters;
protected XmlStandalone standalone;
protected XmlOutputMethod outputMethod;
protected bool autoXmlDeclaration;
protected bool mergeCDataSections;
//
// Constants
//
private const int BUFSIZE = 2048 * 3; // Should be greater than default FileStream size (4096), otherwise the FileStream will try to cache the data
private const int ASYNCBUFSIZE = 64 * 1024; // Set async buffer size to 64KB
private const int OVERFLOW = 32; // Allow overflow in order to reduce checks when writing out constant size markup
private const int INIT_MARKS_COUNT = 64;
//
// Constructors
//
// Construct and initialize an instance of this class.
protected XmlUtf8RawTextWriter(XmlWriterSettings settings)
{
#if ASYNC
useAsync = settings.Async;
#endif
// copy settings
newLineHandling = settings.NewLineHandling;
omitXmlDeclaration = settings.OmitXmlDeclaration;
newLineChars = settings.NewLineChars;
checkCharacters = settings.CheckCharacters;
closeOutput = settings.CloseOutput;
standalone = settings.Standalone;
outputMethod = settings.OutputMethod;
mergeCDataSections = settings.MergeCDataSections;
if (checkCharacters && newLineHandling == NewLineHandling.Replace)
{
ValidateContentChars(newLineChars, "NewLineChars", false);
}
}
// Construct an instance of this class that serializes to a Stream interface.
public XmlUtf8RawTextWriter(Stream stream, XmlWriterSettings settings) : this(settings)
{
Debug.Assert(stream != null && settings != null);
this.stream = stream;
this.encoding = settings.Encoding;
bufBytes = new byte[bufLen + OVERFLOW];
// Output UTF-8 byte order mark if Encoding object wants it
if (!stream.CanSeek || stream.Position == 0)
{
byte[] bom = encoding.GetPreamble();
if (bom.Length != 0)
{
Buffer.BlockCopy(bom, 0, bufBytes, 1, bom.Length);
bufPos += bom.Length;
textPos += bom.Length;
}
}
// Write the xml declaration
if (settings.AutoXmlDeclaration)
{
WriteXmlDeclaration(standalone);
autoXmlDeclaration = true;
}
}
//
// XmlWriter implementation
//
// Returns settings the writer currently applies.
public override XmlWriterSettings Settings
{
get
{
XmlWriterSettings settings = new XmlWriterSettings();
settings.Encoding = this.encoding;
settings.OmitXmlDeclaration = this.omitXmlDeclaration;
settings.NewLineHandling = this.newLineHandling;
settings.NewLineChars = this.newLineChars;
settings.CloseOutput = this.closeOutput;
settings.ConformanceLevel = ConformanceLevel.Auto;
settings.CheckCharacters = checkCharacters;
settings.AutoXmlDeclaration = autoXmlDeclaration;
settings.Standalone = standalone;
settings.OutputMethod = outputMethod;
settings.ReadOnly = true;
return settings;
}
}
// Write the xml declaration. This must be the first call.
internal override void WriteXmlDeclaration(XmlStandalone standalone)
{
// Output xml declaration only if user allows it and it was not already output
if (!omitXmlDeclaration && !autoXmlDeclaration)
{
RawText("<?xml version=\"");
// Version
RawText("1.0");
// Encoding
if (encoding != null)
{
RawText("\" encoding=\"");
RawText(encoding.WebName);
}
// Standalone
if (standalone != XmlStandalone.Omit)
{
RawText("\" standalone=\"");
RawText(standalone == XmlStandalone.Yes ? "yes" : "no");
}
RawText("\"?>");
}
}
internal override void WriteXmlDeclaration(string xmldecl)
{
// Output xml declaration only if user allows it and it was not already output
if (!omitXmlDeclaration && !autoXmlDeclaration)
{
WriteProcessingInstruction("xml", xmldecl);
}
}
// Serialize the document type declaration.
public override void WriteDocType(string name, string pubid, string sysid, string subset)
{
Debug.Assert(name != null && name.Length > 0);
RawText("<!DOCTYPE ");
RawText(name);
if (pubid != null)
{
RawText(" PUBLIC \"");
RawText(pubid);
RawText("\" \"");
if (sysid != null)
{
RawText(sysid);
}
bufBytes[bufPos++] = (byte)'"';
}
else if (sysid != null)
{
RawText(" SYSTEM \"");
RawText(sysid);
bufBytes[bufPos++] = (byte)'"';
}
else
{
bufBytes[bufPos++] = (byte)' ';
}
if (subset != null)
{
bufBytes[bufPos++] = (byte)'[';
RawText(subset);
bufBytes[bufPos++] = (byte)']';
}
bufBytes[this.bufPos++] = (byte)'>';
}
// Serialize the beginning of an element start tag: "<prefix:localName"
public override void WriteStartElement(string prefix, string localName, string ns)
{
Debug.Assert(localName != null && localName.Length > 0);
Debug.Assert(prefix != null);
bufBytes[bufPos++] = (byte)'<';
if (prefix != null && prefix.Length != 0)
{
RawText(prefix);
bufBytes[this.bufPos++] = (byte)':';
}
RawText(localName);
attrEndPos = bufPos;
}
// Serialize the end of an element start tag in preparation for content serialization: ">"
internal override void StartElementContent()
{
bufBytes[bufPos++] = (byte)'>';
// StartElementContent is always called; therefore, in order to allow shortcut syntax, we save the
// position of the '>' character. If WriteEndElement is called and no other characters have been
// output, then the '>' character can be be overwritten with the shortcut syntax " />".
contentPos = bufPos;
}
// Serialize an element end tag: "</prefix:localName>", if content was output. Otherwise, serialize
// the shortcut syntax: " />".
internal override void WriteEndElement(string prefix, string localName, string ns)
{
Debug.Assert(localName != null && localName.Length > 0);
Debug.Assert(prefix != null);
if (contentPos != bufPos)
{
// Content has been output, so can't use shortcut syntax
bufBytes[bufPos++] = (byte)'<';
bufBytes[bufPos++] = (byte)'/';
if (prefix != null && prefix.Length != 0)
{
RawText(prefix);
bufBytes[bufPos++] = (byte)':';
}
RawText(localName);
bufBytes[bufPos++] = (byte)'>';
}
else
{
// Use shortcut syntax; overwrite the already output '>' character
bufPos--;
bufBytes[bufPos++] = (byte)' ';
bufBytes[bufPos++] = (byte)'/';
bufBytes[bufPos++] = (byte)'>';
}
}
// Serialize a full element end tag: "</prefix:localName>"
internal override void WriteFullEndElement(string prefix, string localName, string ns)
{
Debug.Assert(localName != null && localName.Length > 0);
Debug.Assert(prefix != null);
bufBytes[bufPos++] = (byte)'<';
bufBytes[bufPos++] = (byte)'/';
if (prefix != null && prefix.Length != 0)
{
RawText(prefix);
bufBytes[bufPos++] = (byte)':';
}
RawText(localName);
bufBytes[bufPos++] = (byte)'>';
}
// Serialize an attribute tag using double quotes around the attribute value: 'prefix:localName="'
public override void WriteStartAttribute(string prefix, string localName, string ns)
{
Debug.Assert(localName != null && localName.Length > 0);
Debug.Assert(prefix != null);
if (attrEndPos == bufPos)
{
bufBytes[bufPos++] = (byte)' ';
}
if (prefix != null && prefix.Length > 0)
{
RawText(prefix);
bufBytes[bufPos++] = (byte)':';
}
RawText(localName);
bufBytes[bufPos++] = (byte)'=';
bufBytes[bufPos++] = (byte)'"';
inAttributeValue = true;
}
// Serialize the end of an attribute value using double quotes: '"'
public override void WriteEndAttribute()
{
bufBytes[bufPos++] = (byte)'"';
inAttributeValue = false;
attrEndPos = bufPos;
}
internal override void WriteNamespaceDeclaration(string prefix, string namespaceName)
{
Debug.Assert(prefix != null && namespaceName != null);
this.WriteStartNamespaceDeclaration(prefix);
this.WriteString(namespaceName);
this.WriteEndNamespaceDeclaration();
}
internal override bool SupportsNamespaceDeclarationInChunks
{
get
{
return true;
}
}
internal override void WriteStartNamespaceDeclaration(string prefix)
{
Debug.Assert(prefix != null);
// VSTFDEVDIV bug #583965: Inconsistency between Silverlight 2 and Dev10 in the way a single xmlns attribute is serialized
// Resolved as: Won't fix (breaking change)
if (prefix.Length == 0)
{
RawText(" xmlns=\"");
}
else
{
RawText(" xmlns:");
RawText(prefix);
bufBytes[bufPos++] = (byte)'=';
bufBytes[bufPos++] = (byte)'"';
}
inAttributeValue = true;
}
internal override void WriteEndNamespaceDeclaration()
{
inAttributeValue = false;
bufBytes[bufPos++] = (byte)'"';
attrEndPos = bufPos;
}
// Serialize a CData section. If the "]]>" pattern is found within
// the text, replace it with "]]><![CDATA[>".
public override void WriteCData(string text)
{
Debug.Assert(text != null);
if (mergeCDataSections && bufPos == cdataPos)
{
// Merge adjacent cdata sections - overwrite the "]]>" characters
Debug.Assert(bufPos >= 4);
bufPos -= 3;
}
else
{
// Start a new cdata section
bufBytes[bufPos++] = (byte)'<';
bufBytes[bufPos++] = (byte)'!';
bufBytes[bufPos++] = (byte)'[';
bufBytes[bufPos++] = (byte)'C';
bufBytes[bufPos++] = (byte)'D';
bufBytes[bufPos++] = (byte)'A';
bufBytes[bufPos++] = (byte)'T';
bufBytes[bufPos++] = (byte)'A';
bufBytes[bufPos++] = (byte)'[';
}
WriteCDataSection(text);
bufBytes[bufPos++] = (byte)']';
bufBytes[bufPos++] = (byte)']';
bufBytes[bufPos++] = (byte)'>';
textPos = bufPos;
cdataPos = bufPos;
}
// Serialize a comment.
public override void WriteComment(string text)
{
Debug.Assert(text != null);
bufBytes[bufPos++] = (byte)'<';
bufBytes[bufPos++] = (byte)'!';
bufBytes[bufPos++] = (byte)'-';
bufBytes[bufPos++] = (byte)'-';
WriteCommentOrPi(text, '-');
bufBytes[bufPos++] = (byte)'-';
bufBytes[bufPos++] = (byte)'-';
bufBytes[bufPos++] = (byte)'>';
}
// Serialize a processing instruction.
public override void WriteProcessingInstruction(string name, string text)
{
Debug.Assert(name != null && name.Length > 0);
Debug.Assert(text != null);
bufBytes[bufPos++] = (byte)'<';
bufBytes[bufPos++] = (byte)'?';
RawText(name);
if (text.Length > 0)
{
bufBytes[bufPos++] = (byte)' ';
WriteCommentOrPi(text, '?');
}
bufBytes[bufPos++] = (byte)'?';
bufBytes[bufPos++] = (byte)'>';
}
// Serialize an entity reference.
public override void WriteEntityRef(string name)
{
Debug.Assert(name != null && name.Length > 0);
bufBytes[bufPos++] = (byte)'&';
RawText(name);
bufBytes[bufPos++] = (byte)';';
if (bufPos > bufLen)
{
FlushBuffer();
}
textPos = bufPos;
}
// Serialize a character entity reference.
public override void WriteCharEntity(char ch)
{
string strVal = ((int)ch).ToString("X", NumberFormatInfo.InvariantInfo);
if (checkCharacters && !xmlCharType.IsCharData(ch))
{
// we just have a single char, not a surrogate, therefore we have to pass in '\0' for the second char
throw XmlConvert.CreateInvalidCharException(ch, '\0');
}
bufBytes[bufPos++] = (byte)'&';
bufBytes[bufPos++] = (byte)'#';
bufBytes[bufPos++] = (byte)'x';
RawText(strVal);
bufBytes[bufPos++] = (byte)';';
if (bufPos > bufLen)
{
FlushBuffer();
}
textPos = bufPos;
}
// Serialize a whitespace node.
public override unsafe void WriteWhitespace(string ws)
{
Debug.Assert(ws != null);
fixed (char* pSrc = ws)
{
char* pSrcEnd = pSrc + ws.Length;
if (inAttributeValue)
{
WriteAttributeTextBlock(pSrc, pSrcEnd);
}
else
{
WriteElementTextBlock(pSrc, pSrcEnd);
}
}
}
// Serialize either attribute or element text using XML rules.
public override unsafe void WriteString(string text)
{
Debug.Assert(text != null);
fixed (char* pSrc = text)
{
char* pSrcEnd = pSrc + text.Length;
if (inAttributeValue)
{
WriteAttributeTextBlock(pSrc, pSrcEnd);
}
else
{
WriteElementTextBlock(pSrc, pSrcEnd);
}
}
}
// Serialize surrogate character entity.
public override void WriteSurrogateCharEntity(char lowChar, char highChar)
{
int surrogateChar = XmlCharType.CombineSurrogateChar(lowChar, highChar);
bufBytes[bufPos++] = (byte)'&';
bufBytes[bufPos++] = (byte)'#';
bufBytes[bufPos++] = (byte)'x';
RawText(surrogateChar.ToString("X", NumberFormatInfo.InvariantInfo));
bufBytes[bufPos++] = (byte)';';
textPos = bufPos;
}
// Serialize either attribute or element text using XML rules.
// Arguments are validated in the XmlWellformedWriter layer.
public override unsafe void WriteChars(char[] buffer, int index, int count)
{
Debug.Assert(buffer != null);
Debug.Assert(index >= 0);
Debug.Assert(count >= 0 && index + count <= buffer.Length);
fixed (char* pSrcBegin = &buffer[index])
{
if (inAttributeValue)
{
WriteAttributeTextBlock(pSrcBegin, pSrcBegin + count);
}
else
{
WriteElementTextBlock(pSrcBegin, pSrcBegin + count);
}
}
}
// Serialize raw data.
// Arguments are validated in the XmlWellformedWriter layer
public override unsafe void WriteRaw(char[] buffer, int index, int count)
{
Debug.Assert(buffer != null);
Debug.Assert(index >= 0);
Debug.Assert(count >= 0 && index + count <= buffer.Length);
fixed (char* pSrcBegin = &buffer[index])
{
WriteRawWithCharChecking(pSrcBegin, pSrcBegin + count);
}
textPos = bufPos;
}
// Serialize raw data.
public override unsafe void WriteRaw(string data)
{
Debug.Assert(data != null);
fixed (char* pSrcBegin = data)
{
WriteRawWithCharChecking(pSrcBegin, pSrcBegin + data.Length);
}
textPos = bufPos;
}
// Flush all bytes in the buffer to output and close the output stream or writer.
public override void Close()
{
try
{
FlushBuffer();
FlushEncoder();
}
finally
{
// Future calls to Close or Flush shouldn't write to Stream or Writer
writeToNull = true;
if (stream != null)
{
try
{
stream.Flush();
}
finally
{
try
{
if (closeOutput)
{
stream.Close();
}
}
finally
{
stream = null;
}
}
}
}
}
// Flush all characters in the buffer to output and call Flush() on the output object.
public override void Flush()
{
FlushBuffer();
FlushEncoder();
if (stream != null)
{
stream.Flush();
}
}
//
// Implementation methods
//
// Flush all characters in the buffer to output. Do not flush the output object.
protected virtual void FlushBuffer()
{
try
{
// Output all characters (except for previous characters stored at beginning of buffer)
if (!writeToNull)
{
Debug.Assert(stream != null);
stream.Write(bufBytes, 1, bufPos - 1);
}
}
catch
{
// Future calls to flush (i.e. when Close() is called) don't attempt to write to stream
writeToNull = true;
throw;
}
finally
{
// Move last buffer character to the beginning of the buffer (so that previous character can always be determined)
bufBytes[0] = bufBytes[bufPos - 1];
if (IsSurrogateByte(bufBytes[0]))
{
// Last character was the first byte in a surrogate encoding, so move last three
// bytes of encoding to the beginning of the buffer.
bufBytes[1] = bufBytes[bufPos];
bufBytes[2] = bufBytes[bufPos + 1];
bufBytes[3] = bufBytes[bufPos + 2];
}
// Reset buffer position
textPos = (textPos == bufPos) ? 1 : 0;
attrEndPos = (attrEndPos == bufPos) ? 1 : 0;
contentPos = 0; // Needs to be zero, since overwriting '>' character is no longer possible
cdataPos = 0; // Needs to be zero, since overwriting ']]>' characters is no longer possible
bufPos = 1; // Buffer position starts at 1, because we need to be able to safely step back -1 in case we need to
// close an empty element or in CDATA section detection of double ]; _BUFFER[0] will always be 0
}
}
private void FlushEncoder()
{
// intentionally empty
}
// Serialize text that is part of an attribute value. The '&', '<', '>', and '"' characters
// are entitized.
protected unsafe void WriteAttributeTextBlock(char* pSrc, char* pSrcEnd)
{
fixed (byte* pDstBegin = bufBytes)
{
byte* pDst = pDstBegin + this.bufPos;
int ch = 0;
for (; ; )
{
byte* pDstEnd = pDst + (pSrcEnd - pSrc);
if (pDstEnd > pDstBegin + bufLen)
{
pDstEnd = pDstBegin + bufLen;
}
while (pDst < pDstEnd && (((xmlCharType.charProperties[(ch = *pSrc)] & XmlCharType.fAttrValue) != 0) && ch <= 0x7F))
{
*pDst = (byte)ch;
pDst++;
pSrc++;
}
Debug.Assert(pSrc <= pSrcEnd);
// end of value
if (pSrc >= pSrcEnd)
{
break;
}
// end of buffer
if (pDst >= pDstEnd)
{
bufPos = (int)(pDst - pDstBegin);
FlushBuffer();
pDst = pDstBegin + 1;
continue;
}
// some character needs to be escaped
switch (ch)
{
case '&':
pDst = AmpEntity(pDst);
break;
case '<':
pDst = LtEntity(pDst);
break;
case '>':
pDst = GtEntity(pDst);
break;
case '"':
pDst = QuoteEntity(pDst);
break;
case '\'':
*pDst = (byte)ch;
pDst++;
break;
case (char)0x9:
if (newLineHandling == NewLineHandling.None)
{
*pDst = (byte)ch;
pDst++;
}
else
{
// escape tab in attributes
pDst = TabEntity(pDst);
}
break;
case (char)0xD:
if (newLineHandling == NewLineHandling.None)
{
*pDst = (byte)ch;
pDst++;
}
else
{
// escape new lines in attributes
pDst = CarriageReturnEntity(pDst);
}
break;
case (char)0xA:
if (newLineHandling == NewLineHandling.None)
{
*pDst = (byte)ch;
pDst++;
}
else
{
// escape new lines in attributes
pDst = LineFeedEntity(pDst);
}
break;
default:
if (XmlCharType.IsSurrogate(ch)) { pDst = EncodeSurrogate(pSrc, pSrcEnd, pDst); pSrc += 2; } else if (ch <= 0x7F || ch >= 0xFFFE) { pDst = InvalidXmlChar(ch, pDst, true); pSrc++; } else { pDst = EncodeMultibyteUTF8(ch, pDst); pSrc++; };
continue;
}
pSrc++;
}
bufPos = (int)(pDst - pDstBegin);
}
}
// Serialize text that is part of element content. The '&', '<', and '>' characters
// are entitized.
protected unsafe void WriteElementTextBlock(char* pSrc, char* pSrcEnd)
{
fixed (byte* pDstBegin = bufBytes)
{
byte* pDst = pDstBegin + this.bufPos;
int ch = 0;
for (; ; )
{
byte* pDstEnd = pDst + (pSrcEnd - pSrc);
if (pDstEnd > pDstBegin + bufLen)
{
pDstEnd = pDstBegin + bufLen;
}
while (pDst < pDstEnd && (((xmlCharType.charProperties[(ch = *pSrc)] & XmlCharType.fAttrValue) != 0) && ch <= 0x7F))
{
*pDst = (byte)ch;
pDst++;
pSrc++;
}
Debug.Assert(pSrc <= pSrcEnd);
// end of value
if (pSrc >= pSrcEnd)
{
break;
}
// end of buffer
if (pDst >= pDstEnd)
{
bufPos = (int)(pDst - pDstBegin);
FlushBuffer();
pDst = pDstBegin + 1;
continue;
}
// some character needs to be escaped
switch (ch)
{
case '&':
pDst = AmpEntity(pDst);
break;
case '<':
pDst = LtEntity(pDst);
break;
case '>':
pDst = GtEntity(pDst);
break;
case '"':
case '\'':
case (char)0x9:
*pDst = (byte)ch;
pDst++;
break;
case (char)0xA:
if (newLineHandling == NewLineHandling.Replace)
{
pDst = WriteNewLine(pDst);
}
else
{
*pDst = (byte)ch;
pDst++;
}
break;
case (char)0xD:
switch (newLineHandling)
{
case NewLineHandling.Replace:
// Replace "\r\n", or "\r" with NewLineChars
if (pSrc[1] == '\n')
{
pSrc++;
}
pDst = WriteNewLine(pDst);
break;
case NewLineHandling.Entitize:
// Entitize 0xD
pDst = CarriageReturnEntity(pDst);
break;
case NewLineHandling.None:
*pDst = (byte)ch;
pDst++;
break;
}
break;
default:
if (XmlCharType.IsSurrogate(ch)) { pDst = EncodeSurrogate(pSrc, pSrcEnd, pDst); pSrc += 2; } else if (ch <= 0x7F || ch >= 0xFFFE) { pDst = InvalidXmlChar(ch, pDst, true); pSrc++; } else { pDst = EncodeMultibyteUTF8(ch, pDst); pSrc++; };
continue;
}
pSrc++;
}
bufPos = (int)(pDst - pDstBegin);
textPos = bufPos;
contentPos = 0;
}
}
protected unsafe void RawText(string s)
{
Debug.Assert(s != null);
fixed (char* pSrcBegin = s)
{
RawText(pSrcBegin, pSrcBegin + s.Length);
}
}
protected unsafe void RawText(char* pSrcBegin, char* pSrcEnd)
{
fixed (byte* pDstBegin = bufBytes)
{
byte* pDst = pDstBegin + this.bufPos;
char* pSrc = pSrcBegin;
int ch = 0;
for (; ; )
{
byte* pDstEnd = pDst + (pSrcEnd - pSrc);
if (pDstEnd > pDstBegin + this.bufLen)
{
pDstEnd = pDstBegin + this.bufLen;
}
while (pDst < pDstEnd && ((ch = *pSrc) <= 0x7F))
{
pSrc++;
*pDst = (byte)ch;
pDst++;
}
Debug.Assert(pSrc <= pSrcEnd);
// end of value
if (pSrc >= pSrcEnd)
{
break;
}
// end of buffer
if (pDst >= pDstEnd)
{
bufPos = (int)(pDst - pDstBegin);
FlushBuffer();
pDst = pDstBegin + 1;
continue;
}
if (XmlCharType.IsSurrogate(ch)) { pDst = EncodeSurrogate(pSrc, pSrcEnd, pDst); pSrc += 2; } else if (ch <= 0x7F || ch >= 0xFFFE) { pDst = InvalidXmlChar(ch, pDst, false); pSrc++; } else { pDst = EncodeMultibyteUTF8(ch, pDst); pSrc++; };
}
bufPos = (int)(pDst - pDstBegin);
}
}
protected unsafe void WriteRawWithCharChecking(char* pSrcBegin, char* pSrcEnd)
{
fixed (byte* pDstBegin = bufBytes)
{
char* pSrc = pSrcBegin;
byte* pDst = pDstBegin + bufPos;
int ch = 0;
for (; ; )
{
byte* pDstEnd = pDst + (pSrcEnd - pSrc);
if (pDstEnd > pDstBegin + bufLen)
{
pDstEnd = pDstBegin + bufLen;
}
while (pDst < pDstEnd && (((xmlCharType.charProperties[(ch = *pSrc)] & XmlCharType.fText) != 0) && ch <= 0x7F))
{
*pDst = (byte)ch;
pDst++;
pSrc++;
}
Debug.Assert(pSrc <= pSrcEnd);
// end of value
if (pSrc >= pSrcEnd)
{
break;
}
// end of buffer
if (pDst >= pDstEnd)
{
bufPos = (int)(pDst - pDstBegin);
FlushBuffer();
pDst = pDstBegin + 1;
continue;
}
// handle special characters
switch (ch)
{
case ']':
case '<':
case '&':
case (char)0x9:
*pDst = (byte)ch;
pDst++;
break;
case (char)0xD:
if (newLineHandling == NewLineHandling.Replace)
{
// Normalize "\r\n", or "\r" to NewLineChars
if (pSrc[1] == '\n')
{
pSrc++;
}
pDst = WriteNewLine(pDst);
}
else
{
*pDst = (byte)ch;
pDst++;
}
break;
case (char)0xA:
if (newLineHandling == NewLineHandling.Replace)
{
pDst = WriteNewLine(pDst);
}
else
{
*pDst = (byte)ch;
pDst++;
}
break;
default:
if (XmlCharType.IsSurrogate(ch)) { pDst = EncodeSurrogate(pSrc, pSrcEnd, pDst); pSrc += 2; } else if (ch <= 0x7F || ch >= 0xFFFE) { pDst = InvalidXmlChar(ch, pDst, false); pSrc++; } else { pDst = EncodeMultibyteUTF8(ch, pDst); pSrc++; };
continue;
}
pSrc++;
}
bufPos = (int)(pDst - pDstBegin);
}
}
protected unsafe void WriteCommentOrPi(string text, int stopChar)
{
if (text.Length == 0)
{
if (bufPos >= bufLen)
{
FlushBuffer();
}
return;
}
// write text
fixed (char* pSrcBegin = text)
fixed (byte* pDstBegin = bufBytes)
{
char* pSrc = pSrcBegin;
char* pSrcEnd = pSrcBegin + text.Length;
byte* pDst = pDstBegin + bufPos;
int ch = 0;
for (; ; )
{
byte* pDstEnd = pDst + (pSrcEnd - pSrc);
if (pDstEnd > pDstBegin + bufLen)
{
pDstEnd = pDstBegin + bufLen;
}
while (pDst < pDstEnd && (((xmlCharType.charProperties[(ch = *pSrc)] & XmlCharType.fText) != 0) && ch != stopChar && ch <= 0x7F))
{
*pDst = (byte)ch;
pDst++;
pSrc++;
}
Debug.Assert(pSrc <= pSrcEnd);
// end of value
if (pSrc >= pSrcEnd)
{
break;
}
// end of buffer
if (pDst >= pDstEnd)
{
bufPos = (int)(pDst - pDstBegin);
FlushBuffer();
pDst = pDstBegin + 1;
continue;
}
// handle special characters
switch (ch)
{
case '-':
*pDst = (byte)'-';
pDst++;
if (ch == stopChar)
{
// Insert space between adjacent dashes or before comment's end dashes
if (pSrc + 1 == pSrcEnd || *(pSrc + 1) == '-')
{
*pDst = (byte)' ';
pDst++;
}
}
break;
case '?':
*pDst = (byte)'?';
pDst++;
if (ch == stopChar)
{
// Processing instruction: insert space between adjacent '?' and '>'
if (pSrc + 1 < pSrcEnd && *(pSrc + 1) == '>')
{
*pDst = (byte)' ';
pDst++;
}
}
break;
case ']':
*pDst = (byte)']';
pDst++;
break;
case (char)0xD:
if (newLineHandling == NewLineHandling.Replace)
{
// Normalize "\r\n", or "\r" to NewLineChars
if (pSrc[1] == '\n')
{
pSrc++;
}
pDst = WriteNewLine(pDst);
}
else
{
*pDst = (byte)ch;
pDst++;
}
break;
case (char)0xA:
if (newLineHandling == NewLineHandling.Replace)
{
pDst = WriteNewLine(pDst);
}
else
{
*pDst = (byte)ch;
pDst++;
}
break;
case '<':
case '&':
case (char)0x9:
*pDst = (byte)ch;
pDst++;
break;
default:
if (XmlCharType.IsSurrogate(ch)) { pDst = EncodeSurrogate(pSrc, pSrcEnd, pDst); pSrc += 2; } else if (ch <= 0x7F || ch >= 0xFFFE) { pDst = InvalidXmlChar(ch, pDst, false); pSrc++; } else { pDst = EncodeMultibyteUTF8(ch, pDst); pSrc++; };
continue;
}
pSrc++;
}
bufPos = (int)(pDst - pDstBegin);
}
}
protected unsafe void WriteCDataSection(string text)
{
if (text.Length == 0)
{
if (bufPos >= bufLen)
{
FlushBuffer();
}
return;
}
// write text
fixed (char* pSrcBegin = text)
fixed (byte* pDstBegin = bufBytes)
{
char* pSrc = pSrcBegin;
char* pSrcEnd = pSrcBegin + text.Length;
byte* pDst = pDstBegin + bufPos;
int ch = 0;
for (; ; )
{
byte* pDstEnd = pDst + (pSrcEnd - pSrc);
if (pDstEnd > pDstBegin + bufLen)
{
pDstEnd = pDstBegin + bufLen;
}
while (pDst < pDstEnd && (((xmlCharType.charProperties[(ch = *pSrc)] & XmlCharType.fAttrValue) != 0) && ch != ']' && ch <= 0x7F))
{
*pDst = (byte)ch;
pDst++;
pSrc++;
}
Debug.Assert(pSrc <= pSrcEnd);
// end of value
if (pSrc >= pSrcEnd)
{
break;
}
// end of buffer
if (pDst >= pDstEnd)
{
bufPos = (int)(pDst - pDstBegin);
FlushBuffer();
pDst = pDstBegin + 1;
continue;
}
// handle special characters
switch (ch)
{
case '>':
if (hadDoubleBracket && pDst[-1] == (byte)']')
{ // pDst[-1] will always correct - there is a padding character at _BUFFER[0]
// The characters "]]>" were found within the CData text
pDst = RawEndCData(pDst);
pDst = RawStartCData(pDst);
}
*pDst = (byte)'>';
pDst++;
break;
case ']':
if (pDst[-1] == (byte)']')
{ // pDst[-1] will always correct - there is a padding character at _BUFFER[0]
hadDoubleBracket = true;
}
else
{
hadDoubleBracket = false;
}
*pDst = (byte)']';
pDst++;
break;
case (char)0xD:
if (newLineHandling == NewLineHandling.Replace)
{
// Normalize "\r\n", or "\r" to NewLineChars
if (pSrc[1] == '\n')
{
pSrc++;
}
pDst = WriteNewLine(pDst);
}
else
{
*pDst = (byte)ch;
pDst++;
}
break;
case (char)0xA:
if (newLineHandling == NewLineHandling.Replace)
{
pDst = WriteNewLine(pDst);
}
else
{
*pDst = (byte)ch;
pDst++;
}
break;
case '&':
case '<':
case '"':
case '\'':
case (char)0x9:
*pDst = (byte)ch;
pDst++;
break;
default:
if (XmlCharType.IsSurrogate(ch)) { pDst = EncodeSurrogate(pSrc, pSrcEnd, pDst); pSrc += 2; } else if (ch <= 0x7F || ch >= 0xFFFE) { pDst = InvalidXmlChar(ch, pDst, false); pSrc++; } else { pDst = EncodeMultibyteUTF8(ch, pDst); pSrc++; };
continue;
}
pSrc++;
}
bufPos = (int)(pDst - pDstBegin);
}
}
// Returns true if UTF8 encoded byte is first of four bytes that encode a surrogate pair.
// To do this, detect the bit pattern 11110xxx.
private static bool IsSurrogateByte(byte b)
{
return (b & 0xF8) == 0xF0;
}
private static unsafe byte* EncodeSurrogate(char* pSrc, char* pSrcEnd, byte* pDst)
{
Debug.Assert(XmlCharType.IsSurrogate(*pSrc));
int ch = *pSrc;
if (ch <= XmlCharType.SurHighEnd)
{
if (pSrc + 1 < pSrcEnd)
{
int lowChar = pSrc[1];
if (lowChar >= XmlCharType.SurLowStart &&
(/*LocalAppContextSwitches.DontThrowOnInvalidSurrogatePairs ||*/ lowChar <= XmlCharType.SurLowEnd))
{
// Calculate Unicode scalar value for easier manipulations (see section 3.7 in Unicode spec)
// The scalar value repositions surrogate values to start at 0x10000.
ch = XmlCharType.CombineSurrogateChar(lowChar, ch);
pDst[0] = (byte)(0xF0 | (ch >> 18));
pDst[1] = (byte)(0x80 | (ch >> 12) & 0x3F);
pDst[2] = (byte)(0x80 | (ch >> 6) & 0x3F);
pDst[3] = (byte)(0x80 | ch & 0x3F);
pDst += 4;
return pDst;
}
throw XmlConvert.CreateInvalidSurrogatePairException((char)lowChar, (char)ch);
}
throw new ArgumentException(ResXml.Xml_InvalidSurrogateMissingLowChar);
}
throw XmlConvert.CreateInvalidHighSurrogateCharException((char)ch);
}
private unsafe byte* InvalidXmlChar(int ch, byte* pDst, bool entitize)
{
Debug.Assert(!xmlCharType.IsWhiteSpace((char)ch));
Debug.Assert(!xmlCharType.IsAttributeValueChar((char)ch));
if (checkCharacters)
{
// This method will never be called on surrogates, so it is ok to pass in '\0' to the CreateInvalidCharException
throw XmlConvert.CreateInvalidCharException((char)ch, '\0');
}
else
{
if (entitize)
{
return CharEntity(pDst, (char)ch);
}
else
{
if (ch < 0x80)
{
*pDst = (byte)ch;
pDst++;
}
else
{
pDst = EncodeMultibyteUTF8(ch, pDst);
}
return pDst;
}
}
}
internal unsafe void EncodeChar(ref char* pSrc, char* pSrcEnd, ref byte* pDst)
{
int ch = *pSrc;
if (XmlCharType.IsSurrogate(ch)) { pDst = EncodeSurrogate(pSrc, pSrcEnd, pDst); pSrc += 2; } else if (ch <= 0x7F || ch >= 0xFFFE) { pDst = InvalidXmlChar(ch, pDst, false); pSrc++; } else { pDst = EncodeMultibyteUTF8(ch, pDst); pSrc++; };
}
internal static unsafe byte* EncodeMultibyteUTF8(int ch, byte* pDst)
{
Debug.Assert(ch >= 0x80 && !XmlCharType.IsSurrogate(ch));
/* UTF8-2: If ch is in 0x80-0x7ff range, then use 2 bytes to encode it */
if (ch < 0x800)
{
*pDst = (byte)(unchecked((sbyte)0xC0) | (ch >> 6));
}
/* UTF8-3: If ch is anything else, then default to using 3 bytes to encode it. */
else
{
*pDst = (byte)(unchecked((sbyte)0xE0) | (ch >> 12));
pDst++;
*pDst = (byte)(unchecked((sbyte)0x80) | (ch >> 6) & 0x3F);
}
pDst++;
*pDst = (byte)(0x80 | ch & 0x3F);
return pDst + 1;
}
// Encode *pSrc as a sequence of UTF8 bytes. Write the bytes to pDst and return an updated pointer.
internal static unsafe void CharToUTF8(ref char* pSrc, char* pSrcEnd, ref byte* pDst)
{
int ch = *pSrc;
if (ch <= 0x7F)
{
*pDst = (byte)ch;
pDst++;
pSrc++;
}
else if (XmlCharType.IsSurrogate(ch))
{
pDst = EncodeSurrogate(pSrc, pSrcEnd, pDst);
pSrc += 2;
}
else
{
pDst = EncodeMultibyteUTF8(ch, pDst);
pSrc++;
}
}
// Write NewLineChars to the specified buffer position and return an updated position.
protected unsafe byte* WriteNewLine(byte* pDst)
{
fixed (byte* pDstBegin = bufBytes)
{
bufPos = (int)(pDst - pDstBegin);
// Let RawText do the real work
RawText(newLineChars);
return pDstBegin + bufPos;
}
}
// Following methods do not check whether pDst is beyond the bufSize because the buffer was allocated with a OVERFLOW to accomodate
// for the writes of small constant-length string as below.
// Entitize '<' as "<". Return an updated pointer.
protected static unsafe byte* LtEntity(byte* pDst)
{
pDst[0] = (byte)'&';
pDst[1] = (byte)'l';
pDst[2] = (byte)'t';
pDst[3] = (byte)';';
return pDst + 4;
}
// Entitize '>' as ">". Return an updated pointer.
protected static unsafe byte* GtEntity(byte* pDst)
{
pDst[0] = (byte)'&';
pDst[1] = (byte)'g';
pDst[2] = (byte)'t';
pDst[3] = (byte)';';
return pDst + 4;
}
// Entitize '&' as "&". Return an updated pointer.
protected static unsafe byte* AmpEntity(byte* pDst)
{
pDst[0] = (byte)'&';
pDst[1] = (byte)'a';
pDst[2] = (byte)'m';
pDst[3] = (byte)'p';
pDst[4] = (byte)';';
return pDst + 5;
}
// Entitize '"' as """. Return an updated pointer.
protected static unsafe byte* QuoteEntity(byte* pDst)
{
pDst[0] = (byte)'&';
pDst[1] = (byte)'q';
pDst[2] = (byte)'u';
pDst[3] = (byte)'o';
pDst[4] = (byte)'t';
pDst[5] = (byte)';';
return pDst + 6;
}
// Entitize '\t' as "	". Return an updated pointer.
protected static unsafe byte* TabEntity(byte* pDst)
{
pDst[0] = (byte)'&';
pDst[1] = (byte)'#';
pDst[2] = (byte)'x';
pDst[3] = (byte)'9';
pDst[4] = (byte)';';
return pDst + 5;
}
// Entitize 0xa as "
". Return an updated pointer.
protected static unsafe byte* LineFeedEntity(byte* pDst)
{
pDst[0] = (byte)'&';
pDst[1] = (byte)'#';
pDst[2] = (byte)'x';
pDst[3] = (byte)'A';
pDst[4] = (byte)';';
return pDst + 5;
}
// Entitize 0xd as "
". Return an updated pointer.
protected static unsafe byte* CarriageReturnEntity(byte* pDst)
{
pDst[0] = (byte)'&';
pDst[1] = (byte)'#';
pDst[2] = (byte)'x';
pDst[3] = (byte)'D';
pDst[4] = (byte)';';
return pDst + 5;
}
private static unsafe byte* CharEntity(byte* pDst, char ch)
{
string s = ((int)ch).ToString("X", NumberFormatInfo.InvariantInfo);
pDst[0] = (byte)'&';
pDst[1] = (byte)'#';
pDst[2] = (byte)'x';
pDst += 3;
fixed (char* pSrc = s)
{
char* pS = pSrc;
while ((*pDst++ = (byte)*pS++) != 0) ;
}
pDst[-1] = (byte)';';
return pDst;
}
// Write "<![CDATA[" to the specified buffer. Return an updated pointer.
protected static unsafe byte* RawStartCData(byte* pDst)
{
pDst[0] = (byte)'<';
pDst[1] = (byte)'!';
pDst[2] = (byte)'[';
pDst[3] = (byte)'C';
pDst[4] = (byte)'D';
pDst[5] = (byte)'A';
pDst[6] = (byte)'T';
pDst[7] = (byte)'A';
pDst[8] = (byte)'[';
return pDst + 9;
}
// Write "]]>" to the specified buffer. Return an updated pointer.
protected static unsafe byte* RawEndCData(byte* pDst)
{
pDst[0] = (byte)']';
pDst[1] = (byte)']';
pDst[2] = (byte)'>';
return pDst + 3;
}
protected unsafe void ValidateContentChars(string chars, string propertyName, bool allowOnlyWhitespace)
{
if (allowOnlyWhitespace)
{
if (!xmlCharType.IsOnlyWhitespace(chars))
{
throw new ArgumentException(string.Format(ResXml.Xml_IndentCharsNotWhitespace, propertyName));
}
}
else
{
string error = null;
for (int i = 0; i < chars.Length; i++)
{
if (!xmlCharType.IsTextChar(chars[i]))
{
switch (chars[i])
{
case '\n':
case '\r':
case '\t':
continue;
case '<':
case '&':
case ']':
error = string.Format(ResXml.Xml_InvalidCharacter, XmlException.BuildCharExceptionArgs(chars, i));
goto Error;
default:
if (XmlCharType.IsHighSurrogate(chars[i]))
{
if (i + 1 < chars.Length)
{
if (XmlCharType.IsLowSurrogate(chars[i + 1]))
{
i++;
continue;
}
}
error = ResXml.Xml_InvalidSurrogateMissingLowChar;
goto Error;
}
else if (XmlCharType.IsLowSurrogate(chars[i]))
{
error = string.Format(ResXml.Xml_InvalidSurrogateHighChar, ((uint)chars[i]).ToString("X", CultureInfo.InvariantCulture));
goto Error;
}
continue;
}
}
}
return;
Error:
throw new ArgumentException(string.Format(ResXml.Xml_InvalidCharsInIndent, new string[] { propertyName, error }));
}
}
}
// Same as base text writer class except that elements, attributes, comments, and pi's are indented.
internal partial class XmlUtf8RawTextWriterIndent : XmlUtf8RawTextWriter
{
//
// Fields
//
protected int indentLevel;
protected bool newLineOnAttributes;
protected string indentChars;
protected bool mixedContent;
private BitStack _mixedContentStack;
protected ConformanceLevel conformanceLevel = ConformanceLevel.Auto;
//
// Constructors
//
public XmlUtf8RawTextWriterIndent(Stream stream, XmlWriterSettings settings) : base(stream, settings)
{
Init(settings);
}
//
// XmlWriter methods
//
public override XmlWriterSettings Settings
{
get
{
XmlWriterSettings settings = base.Settings;
settings.ReadOnly = false;
settings.Indent = true;
settings.IndentChars = indentChars;
settings.NewLineOnAttributes = newLineOnAttributes;
settings.ReadOnly = true;
return settings;
}
}
public override void WriteDocType(string name, string pubid, string sysid, string subset)
{
// Add indentation
if (!mixedContent && base.textPos != base.bufPos)
{
WriteIndent();
}
base.WriteDocType(name, pubid, sysid, subset);
}
public override void WriteStartElement(string prefix, string localName, string ns)
{
Debug.Assert(localName != null && localName.Length != 0 && prefix != null && ns != null);
// Add indentation
if (!mixedContent && base.textPos != base.bufPos)
{
WriteIndent();
}
indentLevel++;
_mixedContentStack.PushBit(mixedContent);
base.WriteStartElement(prefix, localName, ns);
}
internal override void StartElementContent()
{
// If this is the root element and we're writing a document
// do not inherit the mixedContent flag into the root element.
// This is to allow for whitespace nodes on root level
// without disabling indentation for the whole document.
if (indentLevel == 1 && conformanceLevel == ConformanceLevel.Document)
{
mixedContent = false;
}
else
{
mixedContent = _mixedContentStack.PeekBit();
}
base.StartElementContent();
}
internal override void OnRootElement(ConformanceLevel currentConformanceLevel)
{
// Just remember the current conformance level
conformanceLevel = currentConformanceLevel;
}
internal override void WriteEndElement(string prefix, string localName, string ns)
{
// Add indentation
indentLevel--;
if (!mixedContent && base.contentPos != base.bufPos)
{
// There was content, so try to indent
if (base.textPos != base.bufPos)
{
WriteIndent();
}
}
mixedContent = _mixedContentStack.PopBit();
base.WriteEndElement(prefix, localName, ns);
}
internal override void WriteFullEndElement(string prefix, string localName, string ns)
{
// Add indentation
indentLevel--;
if (!mixedContent && base.contentPos != base.bufPos)
{
// There was content, so try to indent
if (base.textPos != base.bufPos)
{
WriteIndent();
}
}
mixedContent = _mixedContentStack.PopBit();
base.WriteFullEndElement(prefix, localName, ns);
}
// Same as base class, plus possible indentation.
public override void WriteStartAttribute(string prefix, string localName, string ns)
{
// Add indentation
if (newLineOnAttributes)
{
WriteIndent();
}
base.WriteStartAttribute(prefix, localName, ns);
}
public override void WriteCData(string text)
{
mixedContent = true;
base.WriteCData(text);
}
public override void WriteComment(string text)
{
if (!mixedContent && base.textPos != base.bufPos)
{
WriteIndent();
}
base.WriteComment(text);
}
public override void WriteProcessingInstruction(string target, string text)
{
if (!mixedContent && base.textPos != base.bufPos)
{
WriteIndent();
}
base.WriteProcessingInstruction(target, text);
}
public override void WriteEntityRef(string name)
{
mixedContent = true;
base.WriteEntityRef(name);
}
public override void WriteCharEntity(char ch)
{
mixedContent = true;
base.WriteCharEntity(ch);
}
public override void WriteSurrogateCharEntity(char lowChar, char highChar)
{
mixedContent = true;
base.WriteSurrogateCharEntity(lowChar, highChar);
}
public override void WriteWhitespace(string ws)
{
mixedContent = true;
base.WriteWhitespace(ws);
}
public override void WriteString(string text)
{
mixedContent = true;
base.WriteString(text);
}
public override void WriteChars(char[] buffer, int index, int count)
{
mixedContent = true;
base.WriteChars(buffer, index, count);
}
public override void WriteRaw(char[] buffer, int index, int count)
{
mixedContent = true;
base.WriteRaw(buffer, index, count);
}
public override void WriteRaw(string data)
{
mixedContent = true;
base.WriteRaw(data);
}
public override void WriteBase64(byte[] buffer, int index, int count)
{
mixedContent = true;
base.WriteBase64(buffer, index, count);
}
//
// Private methods
//
private void Init(XmlWriterSettings settings)
{
indentLevel = 0;
indentChars = settings.IndentChars;
newLineOnAttributes = settings.NewLineOnAttributes;
_mixedContentStack = new BitStack();
// check indent characters that they are valid XML characters
if (base.checkCharacters)
{
if (newLineOnAttributes)
{
base.ValidateContentChars(indentChars, "IndentChars", true);
base.ValidateContentChars(newLineChars, "NewLineChars", true);
}
else
{
base.ValidateContentChars(indentChars, "IndentChars", false);
if (base.newLineHandling != NewLineHandling.Replace)
{
base.ValidateContentChars(newLineChars, "NewLineChars", false);
}
}
}
}
// Add indentation to output. Write newline and then repeat IndentChars for each indent level.
private void WriteIndent()
{
RawText(base.newLineChars);
for (int i = indentLevel; i > 0; i--)
{
RawText(indentChars);
}
}
}
}
|