public void Load(System.IO.TextReader reader)
{
RTFReader myReader = new RTFReader();
myReader.LoadReader(reader);
Load(myReader);
}
/// <summary>
/// load rtf text
/// </summary>
/// <param name="strText">text in rtf format</param>
public void LoadRTFText(string strText)
{
myEncoding = null;
using (RTFReader reader = new RTFReader())
{
if (reader.LoadRTFText(strText))
{
Load(reader);
reader.Close();
}
reader.Close();
}
}
/// <summary>
/// load rtf file
/// </summary>
/// <param name="strFileName">file name</param>
public void Load(string strFileName)
{
myEncoding = null;
using (RTFReader reader = new RTFReader())
{
if (reader.LoadRTFFile(strFileName))
{
Load(reader);
reader.Close();
}
reader.Close();
}
}
/// <summary>
/// load rtf
/// </summary>
/// <param name="reader">RTF text reader</param>
public void Load(RTFReader reader)
{
myNodes.Clear();
System.Collections.Stack groups = new System.Collections.Stack();
RTFNodeGroup NewGroup = null;
RTFNode NewNode = null;
while (reader.ReadToken() != null)
{
if (reader.TokenType == RTFTokenType.GroupStart)
{
// begin group
if (NewGroup == null)
{
NewGroup = this;
}
else
{
NewGroup = new RTFNodeGroup();
NewGroup.OwnerDocument = this;
}
if (NewGroup != this)
{
RTFNodeGroup g = ( RTFNodeGroup )groups.Peek();
g.AppendChild(NewGroup);
}
groups.Push(NewGroup);
}
else if (reader.TokenType == RTFTokenType.GroupEnd)
{
// end group
NewGroup = ( RTFNodeGroup )groups.Pop();
NewGroup.MergeText();
if (NewGroup.FirstNode is RTFNode)
{
switch (NewGroup.Keyword)
{
case RTFConsts._fonttbl:
// read font table
ReadFontTable(NewGroup);
break;
case RTFConsts._colortbl:
// read color table
ReadColorTable(NewGroup);
break;
case RTFConsts._info:
// read document information
ReadDocumentInfo(NewGroup);
break;
}
}
if (groups.Count > 0)
{
NewGroup = (RTFNodeGroup)groups.Peek();
}
else
{
break;
}
//NewGroup.MergeText();
}
else
{
// read content
NewNode = new RTFNode(reader.CurrentToken);
NewNode.OwnerDocument = this;
NewGroup.AppendChild(NewNode);
if (NewNode.Keyword == RTFConsts._f)
{
RTFFont font = this.FontTable[NewNode.Parameter];
if (font != null)
{
myFontChartset = font.Encoding;
}
else
{
myFontChartset = null;
}
//myFontChartset = RTFFont.GetRTFEncoding( NewNode.Parameter );
}
else if (NewNode.Keyword == RTFConsts._af)
{
RTFFont font = this.FontTable[NewNode.Parameter];
if (font != null)
{
myAssociateFontChartset = font.Encoding;
}
else
{
myAssociateFontChartset = null;
}
}
}
} // while( reader.ReadToken() != null )
while (groups.Count > 0)
{
NewGroup = ( RTFNodeGroup )groups.Pop();
NewGroup.MergeText();
}
//this.UpdateInformation();
}
/// <summary>
/// Accept rtf token
/// </summary>
/// <param name="token">RTF token</param>
/// <returns>Is accept it?</returns>
public bool Accept(RTFToken token, RTFReader 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)
{
// 紧跟在在“\uN”后面的问号忽略掉
if (token.Key.Length > 0)
{
CheckBuffer();
myStr.Append(token.Key.Substring(1));
}
return(true);
}
}
}
}
CheckBuffer();
myStr.Append(token.Key);
return(true);
}
else if (token.Type == RTFTokenType.Control &&
token.Key == "'" && token.HasParam)
{
myBuffer.Add((byte)token.Param);
return(true);
}
if (token.Key == RTFConsts._u && token.HasParam)
{
// Unicode char
CheckBuffer();
// 忽略 \u 指令
//myStr.Append( (char)token.Param);
return(true);
}
if (token.Key == "tab")
{
CheckBuffer();
myStr.Append("\t");
return(true);
}
if (token.Key == "emdash")
{
CheckBuffer();
myStr.Append('—');
return(true);
}
if (token.Key == "")
{
// 提示未识别的字符
CheckBuffer();
myStr.Append('-');
return(true);
}
return(false);
}
