private FunctionNode readFunctionNode(SemanticNode node)
{
Function function = getFunction(node.left);
EvaluationNode parameterRoot = build(node.right);
EvaluationTree evaluationTree = new EvaluationTree(parameterRoot);
return(new FunctionNode(function, evaluationTree));
}
public EvaluationTree parse()
{
ExpressionLexer lexer = new ExpressionLexer(expression);
TokenStream tokenStream = lexer.lex();
SyntaxTree syntaxTree = new SyntaxTree(tokenStream);
syntaxTree.analyze();
SemanticTree semanticTree = new SemanticTree(syntaxTree);
semanticTree.analyze(declaration);
EvaluationTree evaluationTree = new EvaluationTree(semanticTree);
return(evaluationTree);
}