/// <summary>
/// Read a rtf emb object
/// </summary>
/// <param name="reader">reader</param>
/// <param name="format">format</param>
/// <returns>rtf emb object instance</returns>
private void ReadDomObject(Reader reader, DocumentFormatInfo format)
{
var domObject = new DomObject {NativeLevel = reader.Level};
AddContentElement(domObject);
var levelBack = reader.Level;
while (reader.ReadToken() != null)
{
if (reader.Level < levelBack)
break;
if (reader.TokenType == RtfTokenType.GroupStart)
continue;
if (reader.TokenType == RtfTokenType.GroupEnd)
continue;
if (reader.Level == domObject.NativeLevel + 1
&& reader.Keyword.StartsWith("attribute_"))
domObject.CustomAttributes[reader.Keyword] = ReadInnerText(reader, true);
switch (reader.Keyword)
{
case Consts.Objautlink:
domObject.Type = RtfObjectType.AutLink;
break;
case Consts.Objclass:
domObject.ClassName = ReadInnerText(reader, true);
break;
case Consts.Objdata:
var data = ReadInnerText(reader, true);
domObject.Content = HexToBytes(data);
break;
case Consts.Objemb:
domObject.Type = RtfObjectType.Emb;
break;
case Consts.Objh:
domObject.Height = reader.Parameter;
break;
case Consts.Objhtml:
domObject.Type = RtfObjectType.Html;
break;
case Consts.Objicemb:
domObject.Type = RtfObjectType.Icemb;
break;
case Consts.Objlink:
domObject.Type = RtfObjectType.Link;
break;
case Consts.Objname:
domObject.Name = ReadInnerText(reader, true);
break;
case Consts.Objocx:
domObject.Type = RtfObjectType.Ocx;
break;
case Consts.Objpub:
domObject.Type = RtfObjectType.Pub;
break;
case Consts.Objsub:
domObject.Type = RtfObjectType.Sub;
break;
case Consts.Objtime:
break;
case Consts.Objw:
domObject.Width = reader.Parameter;
break;
case Consts.Objscalex:
domObject.ScaleX = reader.Parameter;
break;
case Consts.Objscaley:
domObject.ScaleY = reader.Parameter;
break;
case Consts.Result:
var result = new ElementContainer {Name = Consts.Result};
domObject.AppendChild(result);
Load(reader, format);
result.Locked = true;
break;
}
}
domObject.Locked = true;
}
/// <summary>
/// Load a rtf document from a string in rtf format and parse content
/// </summary>
/// <param name="rtfText">text</param>
public void LoadRtfText(string rtfText)
{
var reader = new StringReader(rtfText);
HtmlContent = null;
Elements.Clear();
_startContent = false;
var rtfReader = new Reader(reader);
var format = new DocumentFormatInfo();
_paragraphFormat = null;
Load(rtfReader, format);
CombineTable(this);
FixElements(this);
}
/// <summary>
/// Read datetime
/// </summary>
/// <param name="reader">reader</param>
/// <returns>datetime value</returns>
private DateTime ReadDateTime(Reader reader)
{
var yr = 1900;
var mo = 1;
var dy = 1;
var hr = 0;
var min = 0;
var sec = 0;
while (reader.ReadToken() != null)
{
if (reader.TokenType == RtfTokenType.GroupEnd)
{
break;
}
switch (reader.Keyword)
{
case "yr":
yr = reader.Parameter;
break;
case "mo":
mo = reader.Parameter;
break;
case "dy":
dy = reader.Parameter;
break;
case "hr":
hr = reader.Parameter;
break;
case "min":
min = reader.Parameter;
break;
case "sec":
sec = reader.Parameter;
break;
}
}
return new DateTime(yr, mo, dy, hr, min, sec);
}
/// <summary>
/// Load rtf from string
/// </summary>
/// <param name="text">Text in rtf format</param>
// ReSharper disable once UnusedMember.Global
public void LoadRTFText(string text)
{
_encoding = null;
using (var reader = new Reader())
{
if (reader.LoadRTFText(text))
Load(reader);
}
}
/// <summary>
/// Read document information
/// </summary>
/// <param name="reader"></param>
private void ReadDocumentInfo(Reader reader)
{
Info.Clear();
var level = 0;
while (reader.ReadToken() != null)
{
if (reader.TokenType == RtfTokenType.GroupStart)
level++;
else if (reader.TokenType == RtfTokenType.GroupEnd)
{
level--;
if (level < 0)
{
break;
}
}
else
{
switch (reader.Keyword)
{
case "creatim":
Info.CreationTime = ReadDateTime(reader);
level--;
break;
case "revtim":
Info.RevisionTime = ReadDateTime(reader);
level--;
break;
case "printim":
Info.PrintTime = ReadDateTime(reader);
level--;
break;
case "buptim":
Info.BackupTime = ReadDateTime(reader);
level--;
break;
default:
if (reader.Keyword != null)
Info.SetInfo(reader.Keyword,
reader.HasParam ? reader.Parameter.ToString(CultureInfo.InvariantCulture) : ReadInnerText(reader, true));
break;
}
}
}
}
/// <summary>
/// Read the following plain text in the current level
/// </summary>
/// <param name="reader">RTF reader</param>
/// <param name="deeply">whether read the text in the sub level</param>
private string ReadInnerText(Reader reader, bool deeply)
{
return ReadInnerText(
reader,
null,
deeply,
false,
false);
}
/// <summary>
/// Read embedded Html content from rtf
/// </summary>
/// <param name="reader"></param>
private void ReadHtmlContent(Reader reader)
{
var stringBuilder = new StringBuilder();
var htmlState = true;
var hexBuffer = string.Empty;
while (reader.ReadToken() != null)
{
switch (reader.Keyword)
{
case Consts.HtmlRtf:
case Consts.MHtmlTag:
if (reader.HasParam && reader.Parameter == 0)
htmlState = false;
else
htmlState = true;
break;
case Consts.HtmlTag:
if (reader.InnerReader.Peek() == ' ')
reader.InnerReader.Read();
var text = ReadInnerText(reader, null, true, false, true);
if (!string.IsNullOrEmpty(text))
stringBuilder.AppendLine(text);
break;
default:
switch (reader.TokenType)
{
case RtfTokenType.Control:
if (!htmlState)
{
switch (reader.Keyword)
{
case "'":
// Convert HEX value directly when we have a single byte charset
if (_defaultEncoding.IsSingleByte)
stringBuilder.Append(HttpUtility.UrlDecode(
"%" + reader.CurrentToken.Hex, _defaultEncoding));
else
{
// If we have a double byte charset like chinese then store the value and wait for the next HEX value
if (hexBuffer == string.Empty)
hexBuffer = "%" + reader.CurrentToken.Hex;
else
{
// Append the second HEX value and convert it
hexBuffer += "%" + reader.CurrentToken.Hex;
stringBuilder.Append(HttpUtility.UrlDecode(hexBuffer,
_defaultEncoding));
// Empty the HEX buffer
hexBuffer = string.Empty;
}
}
break;
//case "u":
// stringBuilder.Append(HttpUtility.UrlDecode("*", _defaultEncoding));
// break;
}
}
break;
case RtfTokenType.ExtKeyword:
case RtfTokenType.Keyword:
if (!htmlState)
{
switch (reader.Keyword)
{
case Consts.Par:
stringBuilder.Append(Environment.NewLine);
break;
case Consts.Line:
stringBuilder.Append(Environment.NewLine);
break;
case Consts.Tab:
stringBuilder.Append("\t");
break;
case Consts.Lquote:
stringBuilder.Append("‘");
break;
case Consts.Rquote:
stringBuilder.Append("’");
break;
case Consts.LdblQuote:
stringBuilder.Append("“");
break;
case Consts.RdblQuote:
stringBuilder.Append("”");
break;
case Consts.Bullet:
stringBuilder.Append("•");
break;
case Consts.Endash:
stringBuilder.Append("–");
break;
case Consts.Emdash:
stringBuilder.Append("—");
break;
case Consts.Tilde:
stringBuilder.Append(" ");
break;
case Consts.Underscore:
stringBuilder.Append("­");
break;
}
}
break;
case RtfTokenType.Text:
if (htmlState == false)
stringBuilder.Append(reader.Keyword);
break;
}
break;
}
}
HtmlContent = stringBuilder.ToString();
}
private void ReadListOverrideTable(Reader reader)
{
ListOverrideTable = new ListOverrideTable();
while (reader.ReadToken() != null)
{
if (reader.TokenType == RtfTokenType.GroupEnd)
break;
if (reader.TokenType == RtfTokenType.GroupStart)
{
ListOverride record = null;
while (reader.ReadToken() != null)
{
if (reader.TokenType == RtfTokenType.GroupEnd)
{
break;
}
if (reader.CurrentToken.Key == Consts.ListOverride)
{
record = new ListOverride();
ListOverrideTable.Add(record);
continue;
}
if (record == null)
continue;
switch (reader.CurrentToken.Key)
{
case Consts.ListId:
record.ListId = reader.CurrentToken.Param;
break;
case Consts.ListOverrideCount:
record.ListOverrideCount = reader.CurrentToken.Param;
break;
case Consts.Ls:
record.Id = reader.CurrentToken.Param;
break;
}
}
}
}
}
private void ReadListTable(Reader reader)
{
ListTable = new ListTable();
while (reader.ReadToken() != null)
{
if (reader.TokenType == RtfTokenType.GroupEnd)
break;
if (reader.TokenType == RtfTokenType.GroupStart)
{
var firstRead = true;
RtfList currentList = null;
var level = reader.Level;
while (reader.ReadToken() != null)
{
if (reader.TokenType == RtfTokenType.GroupEnd)
{
if (reader.Level < level)
{
break;
}
}
else if (reader.TokenType == RtfTokenType.GroupStart)
{
// if meet nested level , then ignore
//reader.ReadToken();
//ReadToEndGround(reader);
//reader.ReadToken();
}
if (firstRead)
{
if (reader.CurrentToken.Key != "list")
{
// 不是以list开头，忽略掉
ReadToEndGround(reader);
reader.ReadToken();
break;
}
currentList = new RtfList();
ListTable.Add(currentList);
firstRead = false;
}
switch (reader.CurrentToken.Key)
{
case "listtemplateid":
currentList.ListTemplateId = reader.CurrentToken.Param;
break;
case "listid":
currentList.ListId = reader.CurrentToken.Param;
break;
case "listhybrid":
currentList.ListHybrid = true;
break;
case "levelfollow":
currentList.LevelFollow = reader.CurrentToken.Param;
break;
case "levelstartat":
currentList.LevelStartAt = reader.CurrentToken.Param;
break;
case "levelnfc":
if (currentList.LevelNfc == RtfLevelNumberType.None)
currentList.LevelNfc = (RtfLevelNumberType) reader.CurrentToken.Param;
break;
case "levelnfcn":
if (currentList.LevelNfc == RtfLevelNumberType.None)
currentList.LevelNfc = (RtfLevelNumberType) reader.CurrentToken.Param;
break;
case "leveljc":
currentList.LevelJc = reader.CurrentToken.Param;
break;
case "leveltext":
if (string.IsNullOrEmpty(currentList.LevelText))
{
var text = ReadInnerText(reader, true);
if (text != null && text.Length > 2)
{
int len = text[0];
len = Math.Min(len, text.Length - 1);
text = text.Substring(1, len);
}
currentList.LevelText = text;
}
break;
case "f":
currentList.FontName = FontTable.GetFontName(reader.CurrentToken.Param);
break;
}
}
}
}
}
private bool ApplyText(TextContainer textContainer, Reader reader, DocumentFormatInfo format)
{
if (textContainer.HasContent)
{
var text = textContainer.Text;
textContainer.Clear();
var image = (DomImage) GetLastElement(typeof (DomImage));
if (image != null && image.Locked == false)
{
image.Data = HexToBytes(text);
image.Format = format.Clone();
image.Width = image.DesiredWidth*image.ScaleX/100;
image.Height = image.DesiredHeight*image.ScaleY/100;
image.Locked = true;
if (reader.TokenType != RtfTokenType.GroupEnd)
{
ReadToEndGround(reader);
}
return true;
}
if (format.ReadText && _startContent)
{
var txt = new DomText {NativeLevel = textContainer.Level, Format = format.Clone()};
if (txt.Format.Align == RtfAlignment.Justify)
txt.Format.Align = RtfAlignment.Left;
txt.Text = text;
AddContentElement(txt);
}
}
return false;
}
/// <summary>
/// Read data , until at the front of the end token belong the current level.
/// </summary>
/// <param name="reader"></param>
private void ReadToEndGround(Reader reader)
{
reader.ReadToEndGround();
}
/// <summary>
/// Load rtf from rtf reader
/// </summary>
/// <param name="reader">RTF text reader</param>
// ReSharper disable once MemberCanBePrivate.Global
public void Load(Reader reader)
{
InternalNodes.Clear();
var groups = new Stack();
NodeGroup newGroup = null;
while (reader.ReadToken() != null)
{
if (reader.TokenType == RtfTokenType.GroupStart)
{
// Begin group
if (newGroup == null)
newGroup = this;
else
{
newGroup = new NodeGroup {OwnerDocument = this};
}
if (newGroup != this)
{
var group = (NodeGroup) groups.Peek();
group.AppendChild(newGroup);
}
groups.Push(newGroup);
}
else if (reader.TokenType == RtfTokenType.GroupEnd)
{
// end group
newGroup = (NodeGroup) groups.Pop();
newGroup.MergeText();
// ReSharper disable once CSharpWarnings::CS0183
if (newGroup.FirstNode is Node)
{
switch (newGroup.Keyword)
{
case Consts.Fonttbl:
// Read font table
ReadFontTable(newGroup);
break;
case Consts.Colortbl:
// Read color table
ReadColorTable(newGroup);
break;
case Consts.Info:
// Read document information
ReadDocumentInfo(newGroup);
break;
}
}
if (groups.Count > 0)
newGroup = (NodeGroup) groups.Peek();
else
break;
//NewGroup.MergeText();
}
else
{
// Read content
var newNode = new Node(reader.CurrentToken) {OwnerDocument = this};
if (newGroup != null) newGroup.AppendChild(newNode);
switch (newNode.Keyword)
{
case Consts.F:
{
var font = FontTable[newNode.Parameter];
_fontChartset = font != null ? font.Encoding : null;
//myFontChartset = RTFFont.GetRTFEncoding( NewNode.Parameter );
}
break;
case Consts.Af:
{
var font = FontTable[newNode.Parameter];
_associatedFontChartset = font != null ? font.Encoding : null;
}
break;
}
}
}
while (groups.Count > 0)
{
newGroup = (NodeGroup) groups.Pop();
newGroup.MergeText();
}
//this.UpdateInformation();
}
/// <summary>
/// Load rtf from text reader
/// </summary>
/// <param name="reader"></param>
public void Load(TextReader reader)
{
var rdr = new Reader();
rdr.LoadReader(reader);
Load(rdr);
}
/// <summary>
/// Load rtf from file
/// </summary>
/// <param name="fileName">file name</param>
// ReSharper disable once UnusedMember.Global
public void Load(string fileName)
{
_encoding = null;
using (var reader = new Reader())
{
if (reader.LoadRTFFile(fileName))
Load(reader);
}
}
/// <summary>
/// Parse an RTF element
/// </summary>
/// <param name="reader"></param>
/// <param name="parentFormat"></param>
private void Load(Reader reader, DocumentFormatInfo parentFormat)
{
if (reader == null)
return;
var forbitPard = false;
DocumentFormatInfo format;
if (_paragraphFormat == null)
_paragraphFormat = new DocumentFormatInfo();
if (parentFormat == null)
format = new DocumentFormatInfo();
else
{
format = parentFormat.Clone();
format.NativeLevel = parentFormat.NativeLevel + 1;
}
var textContainer = new TextContainer(this);
var levelBack = reader.Level;
while (reader.ReadToken() != null)
{
if (reader.TokenCount - _tokenCount > 100)
{
_tokenCount = reader.TokenCount;
OnProgress(reader.ContentLength, reader.ContentPosition, null);
}
if (_startContent)
{
if (textContainer.Accept(reader.CurrentToken, reader))
{
textContainer.Level = reader.Level;
continue;
}
if (textContainer.HasContent)
{
if (ApplyText(textContainer, reader, format))
break;
}
}
if (reader.TokenType == RtfTokenType.GroupEnd)
{
var elements = GetLastElements(true);
for (var count = 0; count < elements.Length; count++)
{
var element = elements[count];
if (element.NativeLevel >= 0 && element.NativeLevel > reader.Level)
{
for (var count2 = count; count2 < elements.Length; count2++)
elements[count2].Locked = true;
break;
}
}
break;
}
if (reader.Level < levelBack)
break;
if (reader.TokenType == RtfTokenType.GroupStart)
{
Load(reader, format);
if (reader.Level < levelBack)
break;
}
if (reader.TokenType == RtfTokenType.Control
|| reader.TokenType == RtfTokenType.Keyword
|| reader.TokenType == RtfTokenType.ExtKeyword)
{
switch (reader.Keyword)
{
case Consts.FromHtml:
// Extract html from rtf
ReadHtmlContent(reader);
return;
#region Read document information
case Consts.Listtable:
ReadListTable(reader);
return;
case Consts.ListOverride:
// Unknow keyword
ReadToEndGround(reader);
break;
case Consts.Ansi:
break;
case Consts.Ansicpg:
// Read default encoding
_defaultEncoding = Encoding.GetEncoding(reader.Parameter);
break;
case Consts.Fonttbl:
// Read font table
ReadFontTable(reader);
break;
case Consts.ListOverrideTable:
ReadListOverrideTable(reader);
break;
case Consts.FileTable:
// Unsupport file list
ReadToEndGround(reader);
break; // Finish current level
case Consts.Colortbl:
// Read color table
ReadColorTable(reader);
return; // Finish current level
case Consts.StyleSheet:
// Unsupport style sheet list
ReadToEndGround(reader);
break;
case Consts.Generator:
// Read document generator
Generator = ReadInnerText(reader, true);
break;
case Consts.Info:
// Read document information
ReadDocumentInfo(reader);
return;
case Consts.Headery:
if (reader.HasParam)
HeaderDistance = reader.Parameter;
break;
case Consts.Footery:
if (reader.HasParam)
FooterDistance = reader.Parameter;
break;
case Consts.Header:
// Analyse header
var header = new DomHeader { Style = RtfHeaderFooterStyle.AllPages };
AppendChild(header);
Load(reader, parentFormat);
header.Locked = true;
_paragraphFormat = new DocumentFormatInfo();
break;
case Consts.Headerl:
// Analyse header
var header1 = new DomHeader { Style = RtfHeaderFooterStyle.LeftPages };
AppendChild(header1);
Load(reader, parentFormat);
header1.Locked = true;
_paragraphFormat = new DocumentFormatInfo();
break;
case Consts.Headerr:
// Analyse header
var headerr = new DomHeader { Style = RtfHeaderFooterStyle.RightPages };
AppendChild(headerr);
Load(reader, parentFormat);
headerr.Locked = true;
_paragraphFormat = new DocumentFormatInfo();
break;
case Consts.Headerf:
// Analyse header
var headerf = new DomHeader { Style = RtfHeaderFooterStyle.FirstPage };
AppendChild(headerf);
Load(reader, parentFormat);
headerf.Locked = true;
_paragraphFormat = new DocumentFormatInfo();
break;
case Consts.Footer:
// Analyse footer
var footer = new DomFooter { Style = RtfHeaderFooterStyle.FirstPage };
AppendChild(footer);
Load(reader, parentFormat);
footer.Locked = true;
_paragraphFormat = new DocumentFormatInfo();
break;
case Consts.Footerl:
// analyse footer
var footerl = new DomFooter { Style = RtfHeaderFooterStyle.LeftPages };
AppendChild(footerl);
Load(reader, parentFormat);
footerl.Locked = true;
_paragraphFormat = new DocumentFormatInfo();
break;
case Consts.Footerr:
// Analyse footer
var footerr = new DomFooter { Style = RtfHeaderFooterStyle.RightPages };
AppendChild(footerr);
Load(reader, parentFormat);
footerr.Locked = true;
_paragraphFormat = new DocumentFormatInfo();
break;
case Consts.Footerf:
// analyse footer
var footerf = new DomFooter { Style = RtfHeaderFooterStyle.FirstPage };
AppendChild(footerf);
Load(reader, parentFormat);
footerf.Locked = true;
_paragraphFormat = new DocumentFormatInfo();
break;
case Consts.Xmlns:
// Unsupport xml namespace
ReadToEndGround(reader);
break;
case Consts.Nonesttables:
// I support nest table , then ignore this keyword
ReadToEndGround(reader);
break;
case Consts.Xmlopen:
// Unsupport xmlopen keyword
break;
case Consts.Revtbl:
//ReadToEndGround(reader);
break;
#endregion
#region Read document information
case Consts.Paperw:
// Read paper width
PaperWidth = reader.Parameter;
break;
case Consts.Paperh:
// Read paper height
PaperHeight = reader.Parameter;
break;
case Consts.Margl:
// Read left margin
LeftMargin = reader.Parameter;
break;
case Consts.Margr:
// Read right margin
RightMargin = reader.Parameter;
break;
case Consts.Margb:
// Read bottom margin
BottomMargin = reader.Parameter;
break;
case Consts.Margt:
// Read top margin
TopMargin = reader.Parameter;
break;
case Consts.Landscape:
// Set landscape
Landscape = true;
break;
case Consts.Fchars:
FollowingChars = ReadInnerText(reader, true);
break;
case Consts.Lchars:
LeadingChars = ReadInnerText(reader, true);
break;
case "pnseclvl":
// Ignore this keyword
ReadToEndGround(reader);
break;
#endregion
#region Read paragraph format
case Consts.Pard:
_startContent = true;
if (forbitPard)
continue;
// Clear paragraph format
_paragraphFormat.ResetParagraph();
// Format.ResetParagraph();
break;
case Consts.Par:
_startContent = true;
// New paragraph
if (GetLastElement(typeof(DomParagraph)) == null)
{
var paragraph = new DomParagraph { Format = _paragraphFormat };
_paragraphFormat = _paragraphFormat.Clone();
AddContentElement(paragraph);
paragraph.Locked = true;
}
else
{
CompleteParagraph();
var p = new DomParagraph { Format = _paragraphFormat };
AddContentElement(p);
}
_startContent = true;
break;
case Consts.Page:
_startContent = true;
CompleteParagraph();
AddContentElement(new DomPageBreak());
break;
case Consts.Pagebb:
_startContent = true;
_paragraphFormat.PageBreak = true;
break;
case Consts.Ql:
// Left alignment
_startContent = true;
_paragraphFormat.Align = RtfAlignment.Left;
break;
case Consts.Qc:
// Center alignment
_startContent = true;
_paragraphFormat.Align = RtfAlignment.Center;
break;
case Consts.Qr:
// Right alignment
_startContent = true;
_paragraphFormat.Align = RtfAlignment.Right;
break;
case Consts.Qj:
// Jusitify alignment
_startContent = true;
_paragraphFormat.Align = RtfAlignment.Justify;
break;
case Consts.Sl:
// Line spacing
_startContent = true;
if (reader.Parameter >= 0)
_paragraphFormat.LineSpacing = reader.Parameter;
break;
case Consts.Slmult:
_startContent = true;
_paragraphFormat.MultipleLineSpacing = (reader.Parameter == 1);
break;
case Consts.Sb:
// Spacing before paragraph
_startContent = true;
_paragraphFormat.SpacingBefore = reader.Parameter;
break;
case Consts.Sa:
// Spacing after paragraph
_startContent = true;
_paragraphFormat.SpacingAfter = reader.Parameter;
break;
case Consts.Fi:
// Indent first line
_startContent = true;
_paragraphFormat.ParagraphFirstLineIndent = reader.Parameter;
break;
case Consts.Brdrw:
_startContent = true;
if (reader.HasParam)
_paragraphFormat.BorderWidth = reader.Parameter;
break;
case Consts.Pn:
_startContent = true;
_paragraphFormat.ListId = -1;
break;
case Consts.Pntext:
break;
case Consts.Pntxtb:
break;
case Consts.Pntxta:
break;
case Consts.Pnlvlbody:
_startContent = true;
break;
case Consts.Pnlvlblt:
_startContent = true;
break;
case Consts.Listtext:
_startContent = true;
var text = ReadInnerText(reader, true);
if (text != null)
{
text = text.Trim();
_listTextFlag = text.StartsWith("l") ? 1 : 2;
}
break;
case Consts.Ls:
_startContent = true;
_paragraphFormat.ListId = reader.Parameter;
_listTextFlag = 0;
break;
case Consts.Li:
_startContent = true;
if (reader.HasParam)
_paragraphFormat.LeftIndent = reader.Parameter;
break;
case Consts.Line:
_startContent = true;
if (format.ReadText)
{
var line = new DomLineBreak();
line.NativeLevel = reader.Level;
AddContentElement(line);
}
break;
#endregion
#region Read text format
case Consts.Insrsid:
break;
case Consts.Plain:
// Clear text format
_startContent = true;
format.ResetText();
break;
case Consts.F:
// Font name
_startContent = true;
if (format.ReadText)
{
var fontName = FontTable.GetFontName(reader.Parameter);
if (fontName != null)
fontName = fontName.Trim();
if (string.IsNullOrEmpty(fontName))
fontName = DefaultFontName;
if (ChangeTimesNewRoman)
{
if (fontName == "Times New Roman")
fontName = DefaultFontName;
}
format.FontName = fontName;
}
_fontChartset = FontTable[reader.Parameter].Encoding;
break;
case Consts.Af:
_associateFontChartset = FontTable[reader.Parameter].Encoding;
break;
case Consts.Fs:
// Font size
_startContent = true;
if (format.ReadText)
{
if (reader.HasParam)
format.FontSize = reader.Parameter / 2.0f;
}
break;
case Consts.Cf:
// Font color
_startContent = true;
if (format.ReadText)
{
if (reader.HasParam)
format.TextColor = ColorTable.GetColor(reader.Parameter, Color.Black);
}
break;
case Consts.Cb:
case Consts.Chcbpat:
// Background color
_startContent = true;
if (format.ReadText)
{
if (reader.HasParam)
{
format.BackColor = ColorTable.GetColor(reader.Parameter, Color.Empty);
}
}
break;
case Consts.B:
// Bold
_startContent = true;
if (format.ReadText)
format.Bold = (reader.HasParam == false || reader.Parameter != 0);
break;
case Consts.V:
// Hidden text
_startContent = true;
if (format.ReadText)
{
if (reader.HasParam && reader.Parameter == 0)
format.Hidden = false;
else
format.Hidden = true;
}
break;
case Consts.Highlight:
// Highlight content
_startContent = true;
if (format.ReadText)
{
if (reader.HasParam)
format.BackColor = ColorTable.GetColor(
reader.Parameter,
Color.Empty);
}
break;
case Consts.I:
// Italic
_startContent = true;
if (format.ReadText)
format.Italic = (reader.HasParam == false || reader.Parameter != 0);
break;
case Consts.Ul:
// Under line
_startContent = true;
if (format.ReadText)
format.Underline = (reader.HasParam == false || reader.Parameter != 0);
break;
case Consts.Strike:
// Strikeout
_startContent = true;
if (format.ReadText)
format.Strikeout = (reader.HasParam == false || reader.Parameter != 0);
break;
case Consts.Sub:
// Subscript
_startContent = true;
if (format.ReadText)
format.Subscript = (reader.HasParam == false || reader.Parameter != 0);
break;
case Consts.Super:
// superscript
_startContent = true;
if (format.ReadText)
format.Superscript = (reader.HasParam == false || reader.Parameter != 0);
break;
case Consts.Nosupersub:
// nosupersub
_startContent = true;
format.Subscript = false;
format.Superscript = false;
break;
case Consts.Brdrb:
_startContent = true;
//format.ParagraphBorder.Bottom = true;
_paragraphFormat.BottomBorder = true;
break;
case Consts.Brdrl:
_startContent = true;
//format.ParagraphBorder.Left = true ;
_paragraphFormat.LeftBorder = true;
break;
case Consts.Brdrr:
_startContent = true;
//format.ParagraphBorder.Right = true ;
_paragraphFormat.RightBorder = true;
break;
case Consts.Brdrt:
_startContent = true;
//format.ParagraphBorder.Top = true;
_paragraphFormat.BottomBorder = true;
break;
case Consts.Brdrcf:
_startContent = true;
var element = GetLastElement(typeof(DomTableRow), false);
if (element is DomTableRow)
{
// Reading a table row
var row = (DomTableRow)element;
if (row.CellSettings.Count > 0)
{
var style = (AttributeList)row.CellSettings[row.CellSettings.Count - 1];
style.Add(reader.Keyword, reader.Parameter);
}
}
else
{
_paragraphFormat.BorderColor = ColorTable.GetColor(reader.Parameter, Color.Black);
format.BorderColor = format.BorderColor;
}
break;
case Consts.Brdrs:
_startContent = true;
_paragraphFormat.BorderThickness = false;
format.BorderThickness = false;
break;
case Consts.Brdrth:
_startContent = true;
_paragraphFormat.BorderThickness = true;
format.BorderThickness = true;
break;
case Consts.Brdrdot:
_startContent = true;
_paragraphFormat.BorderStyle = DashStyle.Dot;
format.BorderStyle = DashStyle.Dot;
break;
case Consts.Brdrdash:
_startContent = true;
_paragraphFormat.BorderStyle = DashStyle.Dash;
format.BorderStyle = DashStyle.Dash;
break;
case Consts.Brdrdashd:
_startContent = true;
_paragraphFormat.BorderStyle = DashStyle.DashDot;
format.BorderStyle = DashStyle.DashDot;
break;
case Consts.Brdrdashdd:
_startContent = true;
_paragraphFormat.BorderStyle = DashStyle.DashDotDot;
format.BorderStyle = DashStyle.DashDotDot;
break;
case Consts.Brdrnil:
_startContent = true;
_paragraphFormat.LeftBorder = false;
_paragraphFormat.TopBorder = false;
_paragraphFormat.RightBorder = false;
_paragraphFormat.BottomBorder = false;
format.LeftBorder = false;
format.TopBorder = false;
format.RightBorder = false;
format.BottomBorder = false;
break;
case Consts.Brsp:
_startContent = true;
if (reader.HasParam)
_paragraphFormat.BorderSpacing = reader.Parameter;
break;
case Consts.Chbrdr:
_startContent = true;
format.LeftBorder = true;
format.TopBorder = true;
format.RightBorder = true;
format.BottomBorder = true;
break;
case Consts.Bkmkstart:
// Book mark
_startContent = true;
if (format.ReadText && _startContent)
{
var bk = new DomBookmark();
bk.Name = ReadInnerText(reader, true);
bk.Locked = true;
AddContentElement(bk);
}
break;
case Consts.Bkmkend:
forbitPard = true;
format.ReadText = false;
break;
case Consts.Field:
// Field
_startContent = true;
ReadDomField(reader, format);
return; // finish current level
//break;
#endregion
#region Read object
case Consts.Object:
{
// object
_startContent = true;
ReadDomObject(reader, format);
return; // finish current level
}
#endregion
#region Read image
case Consts.Shppict:
// Continue the following token
break;
case Consts.Nonshppict:
// unsupport keyword
ReadToEndGround(reader);
break;
case Consts.Pict:
{
// Read image data
//ReadDomImage(reader, format);
_startContent = true;
var image = new DomImage();
image.NativeLevel = reader.Level;
AddContentElement(image);
break;
}
case Consts.Picscalex:
{
var image = (DomImage)GetLastElement(typeof(DomImage));
if (image != null)
image.ScaleX = reader.Parameter;
break;
}
case Consts.Picscaley:
{
var image = (DomImage)GetLastElement(typeof(DomImage));
if (image != null)
image.ScaleY = reader.Parameter;
break;
}
case Consts.Picwgoal:
{
var image = (DomImage)GetLastElement(typeof(DomImage));
if (image != null)
image.DesiredWidth = reader.Parameter;
break;
}
case Consts.Pichgoal:
{
var image = (DomImage)GetLastElement(typeof(DomImage));
if (image != null)
image.DesiredHeight = reader.Parameter;
break;
}
case Consts.Blipuid:
{
var image = (DomImage)GetLastElement(typeof(DomImage));
if (image != null)
image.Id = ReadInnerText(reader, true);
break;
}
case Consts.Emfblip:
{
var image = (DomImage)GetLastElement(typeof(DomImage));
if (image != null)
image.PicType = RtfPictureType.Emfblip;
break;
}
case Consts.Pngblip:
{
var image = (DomImage)GetLastElement(typeof(DomImage));
if (image != null)
image.PicType = RtfPictureType.Pngblip;
break;
}
case Consts.Jpegblip:
{
var image = (DomImage)GetLastElement(typeof(DomImage));
if (image != null)
image.PicType = RtfPictureType.Jpegblip;
break;
}
case Consts.Macpict:
{
var image = (DomImage)GetLastElement(typeof(DomImage));
if (image != null)
image.PicType = RtfPictureType.Macpict;
break;
}
case Consts.Pmmetafile:
{
var image = (DomImage)GetLastElement(typeof(DomImage));
if (image != null)
image.PicType = RtfPictureType.Pmmetafile;
break;
}
case Consts.Wmetafile:
{
var image = (DomImage)GetLastElement(typeof(DomImage));
if (image != null)
image.PicType = RtfPictureType.Wmetafile;
break;
}
case Consts.Dibitmap:
{
var image = (DomImage)GetLastElement(typeof(DomImage));
if (image != null)
image.PicType = RtfPictureType.Dibitmap;
break;
}
case Consts.Wbitmap:
{
var image = (DomImage)GetLastElement(typeof(DomImage));
if (image != null)
image.PicType = RtfPictureType.Wbitmap;
break;
}
#endregion
#region Read shape
case Consts.Sp:
{
// Begin read shape property
var level = 0;
string vName = null;
string vValue = null;
while (reader.ReadToken() != null)
{
if (reader.TokenType == RtfTokenType.GroupStart)
level++;
else if (reader.TokenType == RtfTokenType.GroupEnd)
{
level--;
if (level < 0)
{
break;
}
}
else switch (reader.Keyword)
{
case Consts.Sn:
vName = ReadInnerText(reader, true);
break;
case Consts.Sv:
vValue = ReadInnerText(reader, true);
break;
}
}
var shape = (DomShape)GetLastElement(typeof(DomShape));
if (shape != null)
shape.ExtAttrbutes[vName] = vValue;
else
{
var g = (DomShapeGroup)GetLastElement(typeof(DomShapeGroup));
if (g != null)
{
g.ExtAttrbutes[vName] = vValue;
}
}
break;
}
case Consts.Shptxt:
// handle following token
break;
case Consts.Shprslt:
// ignore this level
ReadToEndGround(reader);
break;
case Consts.Shp:
{
_startContent = true;
var shape = new DomShape();
shape.NativeLevel = reader.Level;
AddContentElement(shape);
break;
}
case Consts.Shpleft:
{
var shape = (DomShape)GetLastElement(typeof(DomShape));
if (shape != null)
shape.Left = reader.Parameter;
break;
}
case Consts.Shptop:
{
var shape = (DomShape)GetLastElement(typeof(DomShape));
if (shape != null)
shape.Top = reader.Parameter;
break;
}
case Consts.Shpright:
{
var shape = (DomShape)GetLastElement(typeof(DomShape));
if (shape != null)
shape.Width = reader.Parameter - shape.Left;
break;
}
case Consts.Shpbottom:
{
var shape = (DomShape)GetLastElement(typeof(DomShape));
if (shape != null)
shape.Height = reader.Parameter - shape.Top;
break;
}
case Consts.Shplid:
{
var shape = (DomShape)GetLastElement(typeof(DomShape));
if (shape != null)
shape.Id = reader.Parameter;
break;
}
case Consts.Shpz:
{
var shape = (DomShape)GetLastElement(typeof(DomShape));
if (shape != null)
shape.ZIndex = reader.Parameter;
break;
}
case Consts.Shpgrp:
{
var group = new DomShapeGroup();
group.NativeLevel = reader.Level;
AddContentElement(group);
break;
}
case Consts.Shpinst:
break;
#endregion
#region Read table
case Consts.Intbl:
case Consts.Trowd:
case Consts.Itap:
{
// These keyword said than current paragraph is a table row
_startContent = true;
var es = GetLastElements(true);
DomElement lastUnlockElement = null;
DomElement lastTableElement = null;
for (var count = es.Length - 1; count >= 0; count--)
{
var e = es[count];
if (e.Locked == false)
{
if (lastUnlockElement == null && !(e is DomParagraph))
lastUnlockElement = e;
if (e is DomTableRow || e is DomTableCell)
lastTableElement = e;
break;
}
}
if (reader.Keyword == Consts.Intbl)
{
if (lastTableElement == null)
{
// if can not find unlocked row
// then new row
var row = new DomTableRow { NativeLevel = reader.Level };
if (lastUnlockElement != null)
lastUnlockElement.AppendChild(row);
}
}
else if (reader.Keyword == Consts.Trowd)
{
// clear row format
DomTableRow row;
if (lastTableElement == null)
{
row = new DomTableRow { NativeLevel = reader.Level };
if (lastUnlockElement != null)
lastUnlockElement.AppendChild(row);
}
else
{
row = lastTableElement as DomTableRow ?? (DomTableRow)lastTableElement.Parent;
}
row.Attributes.Clear();
row.CellSettings.Clear();
_paragraphFormat.ResetParagraph();
}
else if (reader.Keyword == Consts.Itap)
{
// set nested level
if (reader.Parameter == 0)
{
// is the 0 level , belong to document , not to a table
//foreach (RTFDomElement element in es)
//{
// if (element is RTFDomTableRow || element is RTFDomTableCell)
// {
// element.Locked = true;
// }
//}
}
else
{
// in a row
DomTableRow row;
if (lastTableElement == null)
{
row = new DomTableRow { NativeLevel = reader.Level };
if (lastUnlockElement != null)
lastUnlockElement.AppendChild(row);
}
else
row = lastTableElement as DomTableRow ?? (DomTableRow)lastTableElement.Parent;
if (reader.Parameter == row.Level)
{
}
else if (reader.Parameter > row.Level)
{
// nested row
var newRow = new DomTableRow { Level = reader.Parameter };
var parentCell = (DomTableCell)GetLastElement(typeof(DomTableCell), false);
if (parentCell == null)
AddContentElement(newRow);
else
parentCell.AppendChild(newRow);
}
else if (reader.Parameter < row.Level)
{
// exit nested row
}
}
}
break;
}
case Consts.Nesttableprops:
// ignore
break;
case Consts.Row:
{
// finish read row
_startContent = true;
var es = GetLastElements(true);
for (var count = es.Length - 1; count >= 0; count--)
{
es[count].Locked = true;
if (es[count] is DomTableRow)
break;
}
break;
}
case Consts.Nestrow:
{
// finish nested row
_startContent = true;
var es = GetLastElements(true);
for (var count = es.Length - 1; count >= 0; count--)
{
es[count].Locked = true;
if (es[count] is DomTableRow)
break;
}
break;
}
case Consts.Trrh:
case Consts.Trautofit:
case Consts.Irowband:
case Consts.Trhdr:
case Consts.Trkeep:
case Consts.Trkeepfollow:
case Consts.Trleft:
case Consts.Trqc:
case Consts.Trql:
case Consts.Trqr:
case Consts.Trcbpat:
case Consts.Trcfpat:
case Consts.Trpat:
case Consts.Trshdng:
case Consts.TrwWidth:
case Consts.TrwWidthA:
case Consts.Irow:
case Consts.Trpaddb:
case Consts.Trpaddl:
case Consts.Trpaddr:
case Consts.Trpaddt:
case Consts.Trpaddfb:
case Consts.Trpaddfl:
case Consts.Trpaddfr:
case Consts.Trpaddft:
case Consts.Lastrow:
{
// meet row control word , not parse at first , just save it
_startContent = true;
var row = (DomTableRow)GetLastElement(typeof(DomTableRow), false);
if (row != null)
{
row.Attributes.Add(reader.Keyword, reader.Parameter);
}
break;
}
case Consts.Clvmgf:
case Consts.Clvmrg:
case Consts.Cellx:
case Consts.Clvertalt:
case Consts.Clvertalc:
case Consts.Clvertalb:
case Consts.ClNoWrap:
case Consts.Clcbpat:
case Consts.Clcfpat:
case Consts.Clpadl:
case Consts.Clpadt:
case Consts.Clpadr:
case Consts.Clpadb:
case Consts.Clbrdrl:
case Consts.Clbrdrt:
case Consts.Clbrdrr:
case Consts.Clbrdrb:
case Consts.Brdrtbl:
case Consts.Brdrnone:
{
// Meet cell control word , no parse at first , just save it
_startContent = true;
var row = (DomTableRow)GetLastElement(typeof(DomTableRow), false);
AttributeList style = null;
if (row.CellSettings.Count > 0)
{
style = (AttributeList)row.CellSettings[row.CellSettings.Count - 1];
if (style.Contains(Consts.Cellx))
{
// if find repeat control word , then can consider this control word
// belong to the next cell . userly cellx is the last control word of
// a cell , when meet cellx , the current cell defind is finished.
style = new AttributeList();
row.CellSettings.Add(style);
}
}
if (style == null)
{
style = new AttributeList();
row.CellSettings.Add(style);
}
style.Add(reader.Keyword, reader.Parameter);
break;
}
case Consts.Cell:
{
// finish cell content
_startContent = true;
AddContentElement(null);
CompleteParagraph();
_paragraphFormat.Reset();
format.Reset();
var es = GetLastElements(true);
for (var count = es.Length - 1; count >= 0; count--)
{
if (es[count].Locked == false)
{
es[count].Locked = true;
if (es[count] is DomTableCell)
break;
}
}
break;
}
case Consts.Nestcell:
{
// finish nested cell content
_startContent = true;
AddContentElement(null);
CompleteParagraph();
var es = GetLastElements(false);
for (var count = es.Length - 1; count >= 0; count--)
{
es[count].Locked = true;
if (es[count] is DomTableCell)
{
((DomTableCell)es[count]).Format = format;
break;
}
}
break;
}
#endregion
default:
// Unsupport keyword
if (reader.TokenType == RtfTokenType.ExtKeyword && reader.FirstTokenInGroup)
{
// if meet unsupport extern keyword , and this token is the first token in
// current group , then ingore whole group.
ReadToEndGround(reader);
}
break;
}
}
}
if (textContainer.HasContent)
ApplyText(textContainer, reader, format);
}
/// <summary>
/// Load a rtf document from a text reader and parse content
/// </summary>
/// <param name="reader">text reader</param>
public void Load(TextReader reader)
{
HtmlContent = null;
Elements.Clear();
_startContent = false;
var r = new Reader(reader);
var format = new DocumentFormatInfo();
_paragraphFormat = null;
Load(r, format);
// combination table rows to table
CombineTable(this);
FixElements(this);
}
/// <summary>
/// Read field
/// </summary>
/// <param name="reader"></param>
/// <param name="format"></param>
/// <returns></returns>
private void ReadDomField(
Reader reader,
DocumentFormatInfo format)
{
var field = new DomField {NativeLevel = reader.Level};
AddContentElement(field);
var levelBack = reader.Level;
while (reader.ReadToken() != null)
{
if (reader.Level < levelBack)
break;
if (reader.TokenType == RtfTokenType.GroupStart)
{
}
else if (reader.TokenType == RtfTokenType.GroupEnd)
{
}
else
{
switch (reader.Keyword)
{
case Consts.Flddirty:
field.Method = RtfDomFieldMethod.Dirty;
break;
case Consts.Fldedit:
field.Method = RtfDomFieldMethod.Edit;
break;
case Consts.Fldlock:
field.Method = RtfDomFieldMethod.Lock;
break;
case Consts.Fldpriv:
field.Method = RtfDomFieldMethod.Priv;
break;
case Consts.Fldrslt:
var result = new ElementContainer {Name = Consts.Fldrslt};
field.AppendChild(result);
Load(reader, format);
result.Locked = true;
break;
case Consts.Fldinst:
var inst = new ElementContainer {Name = Consts.Fldinst};
field.AppendChild(inst);
Load(reader, format);
inst.Locked = true;
var txt = inst.InnerText;
if (txt != null)
{
var index = txt.IndexOf(Consts.Hyperlink, StringComparison.Ordinal);
if (index >= 0)
{
var index1 = txt.IndexOf('\"', index);
if (index1 > 0 && txt.Length > index1 + 2)
{
var index2 = txt.IndexOf('\"', index1 + 2);
if (index2 > index1)
{
var link = txt.Substring(index1 + 1, index2 - index1 - 1);
if (format.Parent != null)
{
if (link.StartsWith("_Toc"))
link = "#" + link;
format.Parent.Link = link;
}
}
}
}
}
break;
}
}
}
field.Locked = true;
//return field;
}
/// <summary>
/// Read font table
/// </summary>
/// <param name="reader"></param>
private void ReadFontTable(Reader reader)
{
FontTable.Clear();
while (reader.ReadToken() != null)
{
if (reader.TokenType == RtfTokenType.GroupEnd)
break;
if (reader.TokenType == RtfTokenType.GroupStart)
{
var index = -1;
string name = null;
var charset = 1;
var nilFlag = false;
while (reader.ReadToken() != null)
{
if (reader.TokenType == RtfTokenType.GroupEnd)
break;
if (reader.TokenType == RtfTokenType.GroupStart)
{
// if meet nested level , then ignore
reader.ReadToken();
ReadToEndGround(reader);
reader.ReadToken();
}
else if (reader.Keyword == "f" && reader.HasParam)
index = reader.Parameter;
else if (reader.Keyword == "fnil")
{
name = Control.DefaultFont.Name;
nilFlag = true;
}
else if (reader.Keyword == Consts.Fcharset)
charset = reader.Parameter;
else if (reader.CurrentToken.IsTextToken)
{
name = ReadInnerText(
reader,
reader.CurrentToken,
false,
false,
false);
if (name != null)
{
name = name.Trim();
if (name.EndsWith(";"))
name = name.Substring(0, name.Length - 1);
}
}
}
if (index >= 0 && name != null)
{
if (name.EndsWith(";"))
name = name.Substring(0, name.Length - 1);
name = name.Trim();
if (string.IsNullOrEmpty(name))
name = Control.DefaultFont.Name;
var font = new Font(index, name) {Charset = charset, NilFlag = nilFlag};
FontTable.Add(font);
}
}
}
}
/// <summary>
/// Read the following plain text in the current level
/// </summary>
/// <param name="reader">RTF reader</param>
/// <param name="firstToken"></param>
/// <param name="deeply">whether read the text in the sub level</param>
/// <param name="breakMeetControlWord"></param>
/// <param name="htmlMode"></param>
/// <returns>text</returns>
private string ReadInnerText(
Reader reader,
Token firstToken,
bool deeply,
bool breakMeetControlWord,
bool htmlMode)
{
var level = 0;
var container = new TextContainer(this);
container.Accept(firstToken, reader);
while (true)
{
var type = reader.PeekTokenType();
if (type == RtfTokenType.Eof)
break;
if (type == RtfTokenType.GroupStart)
level++;
else if (type == RtfTokenType.GroupEnd)
{
level--;
if (level < 0)
break;
}
reader.ReadToken();
if (!deeply && level != 0) continue;
if (htmlMode && reader.Keyword == Consts.Par)
{
container.Append(Environment.NewLine);
continue;
}
container.Accept(reader.CurrentToken, reader);
if (breakMeetControlWord)
break;
}
return container.Text;
}
/// <summary>
/// Read color table
/// </summary>
/// <param name="reader"></param>
private void ReadColorTable(Reader reader)
{
ColorTable.Clear();
ColorTable.CheckValueExistWhenAdd = false;
var r = -1;
var g = -1;
var b = -1;
while (reader.ReadToken() != null)
{
if (reader.TokenType == RtfTokenType.GroupEnd)
{
break;
}
switch (reader.Keyword)
{
case "red":
r = reader.Parameter;
break;
case "green":
g = reader.Parameter;
break;
case "blue":
b = reader.Parameter;
break;
case ";":
if (r >= 0 && g >= 0 && b >= 0)
{
var c = Color.FromArgb(255, r, g, b);
ColorTable.Add(c);
r = -1;
g = -1;
b = -1;
}
break;
}
}
if (r >= 0 && g >= 0 && b >= 0)
{
// Read the last color
var c = Color.FromArgb(255, r, g, b);
ColorTable.Add(c);
}
}
/// <summary>
/// Accept rtf token
/// </summary>
/// <param name="token">RTF token</param>
/// <param name="reader"></param>
/// <returns>Is accept it?</returns>
public bool Accept(Token token, Reader reader)
{
if (token == null)
return false;
if (token.Type == RtfTokenType.Text)
{
if (reader != null)
{
if (token.Key[0] == '?')
{
if (reader.LastToken != null)
{
if (reader.LastToken.Type == RtfTokenType.Keyword
&& reader.LastToken.Key == "u"
&& reader.LastToken.HasParam)
{
if (token.Key.Length > 0)
CheckBuffer();
return true;
}
}
}
}
CheckBuffer();
_stringBuilder.Append(token.Key);
return true;
}
if (token.Type == RtfTokenType.Control && token.Key == "'" && token.HasParam)
{
if (reader.CurrentLayerInfo.CheckUcValueCount())
_byteBuffer.Add((byte) token.Param);
return true;
}
if (token.Key == Consts.U && token.HasParam)
{
// Unicode char
CheckBuffer();
_stringBuilder.Append((char) token.Param);
reader.CurrentLayerInfo.UCValueCount = reader.CurrentLayerInfo.UcValue;
return true;
}
if (token.Key == Consts.Tab)
{
CheckBuffer();
_stringBuilder.Append("\t");
return true;
}
if (token.Key == Consts.Emdash)
{
CheckBuffer();
_stringBuilder.Append('-');
return true;
}
if (token.Key == "")
{
CheckBuffer();
_stringBuilder.Append('-');
return true;
}
return false;
}
/// <summary>
/// Load rtf from rtf reader
/// </summary>
/// <param name="reader">RTF text reader</param>
// ReSharper disable once MemberCanBePrivate.Global
public void Load(Reader reader)
{
InternalNodes.Clear();
var groups = new Stack();
NodeGroup newGroup = null;
while (reader.ReadToken() != null)
{
if (reader.TokenType == RtfTokenType.GroupStart)
{
// Begin group
if (newGroup == null)
{
newGroup = this;
}
else
{
newGroup = new NodeGroup {
OwnerDocument = this
};
}
if (newGroup != this)
{
var group = (NodeGroup)groups.Peek();
group.AppendChild(newGroup);
}
groups.Push(newGroup);
}
else if (reader.TokenType == RtfTokenType.GroupEnd)
{
// end group
newGroup = (NodeGroup)groups.Pop();
newGroup.MergeText();
// ReSharper disable once CSharpWarnings::CS0183
if (newGroup.FirstNode is Node)
{
switch (newGroup.Keyword)
{
case Consts.Fonttbl:
// Read font table
ReadFontTable(newGroup);
break;
case Consts.Colortbl:
// Read color table
ReadColorTable(newGroup);
break;
case Consts.Info:
// Read document information
ReadDocumentInfo(newGroup);
break;
}
}
if (groups.Count > 0)
{
newGroup = (NodeGroup)groups.Peek();
}
else
{
break;
}
//NewGroup.MergeText();
}
else
{
// Read content
var newNode = new Node(reader.CurrentToken)
{
OwnerDocument = this
};
if (newGroup != null)
{
newGroup.AppendChild(newNode);
}
switch (newNode.Keyword)
{
case Consts.F:
{
var font = FontTable[newNode.Parameter];
_fontChartset = font != null ? font.Encoding : null;
//myFontChartset = RTFFont.GetRTFEncoding( NewNode.Parameter );
}
break;
case Consts.Af:
{
var font = FontTable[newNode.Parameter];
_associatedFontChartset = font != null ? font.Encoding : null;
}
break;
}
}
}
while (groups.Count > 0)
{
newGroup = (NodeGroup)groups.Pop();
newGroup.MergeText();
}
//this.UpdateInformation();
}