public bool Parse(Lexer lexer, Token token, Attributes attributes)
{
var successfullyParsed = true;
var statements = attributes["STMS"] as Statements;
while (token.Is(TokenType.Identifier) || token.Is(TokenType.Read) || token.Is(TokenType.Write) ||
token.Is(TokenType.WriteLine) || token.Is(TokenType.ConditionalIf) || token.Is(TokenType.IterationWhile))
{
try
{
if (token.Is(TokenType.Identifier))
{
successfullyParsed &= ParserFactory.GetAssignmentOrCallParser().Parse(lexer, token, attributes);
if (attributes.ContainsAttribute("AOC"))
{
statements.AddStatement(attributes["AOC"] as Statement);
attributes.RemoveAttribute("AOC");
}
}
else if (token.Is(TokenType.Read))
{
successfullyParsed &= ParserFactory.GetReadParser().Parse(lexer, token, attributes);
if (attributes.ContainsAttribute("READ"))
{
statements.AddStatement(attributes["READ"] as Statement);
attributes.RemoveAttribute("READ");
}
}
else if (token.Is(TokenType.Write) || token.Is(TokenType.WriteLine))
{
successfullyParsed &= ParserFactory.GetShowParser().Parse(lexer, token, attributes);
if (attributes.ContainsAttribute("SHOW"))
{
statements.AddStatement(attributes["SHOW"] as Statement);
attributes.RemoveAttribute("SHOW");
}
}
else if (token.Is(TokenType.ConditionalIf))
{
successfullyParsed &= ParserFactory.GetIfParser().Parse(lexer, token, attributes);
if (attributes.ContainsAttribute("IF"))
{
statements.AddStatement(attributes["IF"] as Statement);
attributes.RemoveAttribute("IF");
}
}
else if (token.Is(TokenType.IterationWhile))
{
successfullyParsed &= ParserFactory.GetWhileParser().Parse(lexer, token, attributes);
if (attributes.ContainsAttribute("WHILE"))
{
statements.AddStatement(attributes["WHILE"] as Statement);
attributes.RemoveAttribute("WHILE");
}
}
}
catch (Exception ex)
{
successfullyParsed = false;
Logger(ex.Message);
ErrorRecovery(lexer);
}
token = lexer.GetNextToken();
}
return(successfullyParsed);
}
