protected virtual CascadeMessageSequenceNode ParseCascadeMessageSequenceNode(ICascadeMessageSequenceParentNode parent, Token semicolon)
{
// PARSE: <cascaded messages> ::= (';' <messages>)*
if (!Parser.IsCascadeDelimiter(semicolon))
{
this.ResidueToken = semicolon;
return(null); // Not a cascade message ... return null.
}
CascadeMessageSequenceNode result = new CascadeMessageSequenceNode(parent, (SpecialCharacterToken)semicolon);
Token token = this.GetNextTokenxx(Preference.Default);
MessageSequenceNode messages = this.ParseMessages(result, token);
if (messages == null)
{
this.ReportParserError(result, SemanticErrors.MissingMessagePattern, token);
return(result);
}
token = this.GetNextTokenxx(Preference.Default);
CascadeMessageSequenceNode nextCascade = null;
if (Parser.IsCascadeDelimiter(token))
{
nextCascade = this.ParseCascadeMessageSequenceNode(result, (SpecialCharacterToken)token);
}
else
{
this.ResidueToken = token;
}
result.SetContents(messages, nextCascade);
return(result);
}
/// <summary>
/// Create a new cascade message sequence.
/// </summary>
/// <param name="parent">Parent node that defines this cascade message node.</param>
/// <param name="token">Token representing the semicolon used to delimit cascase message sequences.</param>
protected internal CascadeMessageSequenceNode(ICascadeMessageSequenceParentNode parent, SpecialCharacterToken token)
{
#if DEBUG
if (parent == null)
throw new ArgumentNullException("parent");
if (token == null)
throw new ArgumentNullException("token");
#endif
this.Parent = parent;
this.Semicolon = token;
}
/// <summary>
/// Create a new cascade message sequence.
/// </summary>
/// <param name="parent">Parent node that defines this cascade message node.</param>
/// <param name="token">Token representing the semicolon used to delimit cascade message sequences.</param>
protected internal CascadeMessageSequenceNode(ICascadeMessageSequenceParentNode parent, SpecialCharacterToken token)
{
#if DEBUG
if (parent == null)
{
throw new ArgumentNullException("parent");
}
if (token == null)
{
throw new ArgumentNullException("token");
}
#endif
this.Parent = parent;
this.Semicolon = token;
}
protected virtual CascadeMessageSequenceNode ParseCascadeMessageSequenceNode(ICascadeMessageSequenceParentNode parent, Token semicolon)
{
// PARSE: <cascaded messages> ::= (';' <messages>)*
if (!Parser.IsCascadeDelimiter(semicolon))
{
this.ResidueToken = semicolon;
return null; // Not a cascade message ... return null.
}
CascadeMessageSequenceNode result = new CascadeMessageSequenceNode(parent, (SpecialCharacterToken)semicolon);
Token token = this.GetNextTokenxx(Preference.Default);
MessageSequenceNode messages = this.ParseMessages(result, token);
if (messages == null)
{
this.ReportParserError(result, SemanticErrors.MissingMessagePattern, token);
return result;
}
token = this.GetNextTokenxx(Preference.Default);
CascadeMessageSequenceNode nextCascade = null;
if (Parser.IsCascadeDelimiter(token))
nextCascade = this.ParseCascadeMessageSequenceNode(result, (SpecialCharacterToken)token);
else
this.ResidueToken = token;
result.SetContents(messages, nextCascade);
return result;
}
