/// <summary>Return the next token in the stream</summary>
public TokenClass GetToken() {
if (pushed_class != TokenClass.None) {
this.rtf_class = this.pushed_class;
this.major = this.pushed_major;
this.minor = this.pushed_minor;
this.param = this.pushed_param;
this.pushed_class = TokenClass.None;
return this.rtf_class;
}
GetToken2();
if (this.rtf_class == TokenClass.Text) {
this.minor = (Minor)this.cur_charset[(int)this.major];
}
if (this.cur_charset.Flags == CharsetFlags.None) {
return this.rtf_class;
}
if (((this.cur_charset.Flags & CharsetFlags.Read) != 0) && CheckCM(TokenClass.Control, Major.CharSet)) {
this.cur_charset.ReadMap();
} else if (((this.cur_charset.Flags & CharsetFlags.Switch) != 0) && CheckCMM(TokenClass.Control, Major.CharAttr, Minor.FontNum)) {
Font fp;
fp = Font.GetFont(this.font_list, this.param);
if (fp != null) {
if (fp.Name.StartsWith("Symbol")) {
this.cur_charset.ID = CharsetType.Symbol;
} else {
this.cur_charset.ID = CharsetType.General;
}
} else if (((this.cur_charset.Flags & CharsetFlags.Switch) != 0) && (this.rtf_class == TokenClass.Group)) {
switch(this.major) {
case Major.BeginGroup: {
this.charset_stack.Push(this.cur_charset);
break;
}
case Major.EndGroup: {
this.cur_charset = (Charset)this.charset_stack.Pop();
break;
}
}
}
}
return this.rtf_class;
}
public RTF(Stream stream) {
source = new StreamReader(stream);
text_buffer = new StringBuilder(1024);
//pushed_text_buffer = new StringBuilder(1024);
rtf_class = TokenClass.None;
pushed_class = TokenClass.None;
pushed_char = unchecked((char)-1);
line_num = 0;
line_pos = 0;
prev_char = unchecked((char)-1);
bump_line = false;
cur_charset = new Charset();
destination_callbacks = new DestinationCallback();
class_callbacks = new ClassCallback();
destination_callbacks [Minor.OptDest] = new DestinationDelegate (HandleOptDest);
destination_callbacks[Minor.FontTbl] = new DestinationDelegate(ReadFontTbl);
destination_callbacks[Minor.ColorTbl] = new DestinationDelegate(ReadColorTbl);
destination_callbacks[Minor.StyleSheet] = new DestinationDelegate(ReadStyleSheet);
destination_callbacks[Minor.Info] = new DestinationDelegate(ReadInfoGroup);
destination_callbacks[Minor.Pict] = new DestinationDelegate(ReadPictGroup);
destination_callbacks[Minor.Object] = new DestinationDelegate(ReadObjGroup);
}
/// <summary>Return the next token in the stream</summary>
public TokenClass GetToken() {
if (pushed_class != TokenClass.None) {
this.rtf_class = this.pushed_class;
this.major = this.pushed_major;
this.minor = this.pushed_minor;
this.param = this.pushed_param;
this.pushed_class = TokenClass.None;
return this.rtf_class;
}
GetToken2();
if (this.rtf_class == TokenClass.Text) {
this.minor = (Minor)this.cur_charset[(int)this.major];
if (encoding == null) {
encoding = Encoding.GetEncoding (encoding_code_page);
}
encoded_text = new String (encoding.GetChars (new byte [] { (byte) this.major }));
}
if (this.cur_charset.Flags == CharsetFlags.None) {
return this.rtf_class;
}
if (CheckCMM (TokenClass.Control, Major.Unicode, Minor.UnicodeAnsiCodepage)) {
encoding_code_page = param;
// fallback to the default one in case we have an invalid value
if (encoding_code_page < 0 || encoding_code_page > 65535)
encoding_code_page = DefaultEncodingCodePage;
}
if (((this.cur_charset.Flags & CharsetFlags.Read) != 0) && CheckCM(TokenClass.Control, Major.CharSet)) {
this.cur_charset.ReadMap();
} else if (((this.cur_charset.Flags & CharsetFlags.Switch) != 0) && CheckCMM(TokenClass.Control, Major.CharAttr, Minor.FontNum)) {
Font fp;
fp = Font.GetFont(this.font_list, this.param);
if (fp != null) {
if (fp.Name.StartsWith("Symbol")) {
this.cur_charset.ID = CharsetType.Symbol;
} else {
this.cur_charset.ID = CharsetType.General;
}
} else if (((this.cur_charset.Flags & CharsetFlags.Switch) != 0) && (this.rtf_class == TokenClass.Group)) {
switch(this.major) {
case Major.BeginGroup: {
this.charset_stack.Push(this.cur_charset);
break;
}
case Major.EndGroup: {
this.cur_charset = (Charset)this.charset_stack.Pop();
break;
}
}
}
}
return this.rtf_class;
}
