Parser()
{
var grammar = new Lingua.Grammar();
grammar.Load(Assembly.GetCallingAssembly(), "Prolog");
grammar.LoadRules(Assembly.GetCallingAssembly(), "Prolog");
grammar.Resolve();
Grammar = grammar;
var terminalReaderGenerator = new TerminalReaderGenerator();
var terminalReaderGeneratorResult = terminalReaderGenerator.GenerateTerminalReader(Grammar);
_terminalReader = terminalReaderGeneratorResult.TerminalReader;
var parserGenerator = new ParserGenerator();
var parserGeneratorResult = parserGenerator.GenerateParser(Grammar);
_parser = parserGeneratorResult.Parser;
}
private Parser()
{
Lingua.Grammar grammar = new Lingua.Grammar();
grammar.Load(Assembly.GetCallingAssembly(), "Prolog");
grammar.LoadRules(Assembly.GetCallingAssembly(), "Prolog");
grammar.Resolve();
m_grammar = grammar;
TerminalReaderGenerator terminalReaderGenerator = new TerminalReaderGenerator();
TerminalReaderGeneratorResult terminalReaderGeneratorResult = terminalReaderGenerator.GenerateTerminalReader(m_grammar);
m_terminalReader = terminalReaderGeneratorResult.TerminalReader;
ParserGenerator parserGenerator = new ParserGenerator();
ParserGeneratorResult parserGeneratorResult = parserGenerator.GenerateParser(m_grammar);
m_parser = parserGeneratorResult.Parser;
}
public void CreateParser()
{
var assembly = Assembly.GetAssembly(typeof(App));
var grammar = new Grammar();
grammar.Load(assembly, "Prolog");
grammar.LoadRules(assembly, "Prolog");
grammar.Resolve();
Trace.WriteLine("TERMINALS");
foreach (var terminal in grammar.GetTerminals())
{
Trace.WriteLine(terminal.Name);
StringBuilder sb = new StringBuilder();
sb.Append(" First:");
foreach (var first in terminal.First)
{
sb.Append(" ");
sb.Append(first == null ? "e" : first.Name);
}
Trace.WriteLine(sb.ToString());
}
Trace.WriteLine("NONTERMINALS");
foreach (var nonterminal in grammar.GetNonterminals())
{
Trace.WriteLine(nonterminal.Name);
foreach (var rule in nonterminal.Rules)
{
Trace.WriteLine(" " + rule);
}
var sb = new StringBuilder();
sb.Append(" First:");
foreach (var first in nonterminal.First)
{
sb.Append(" ");
sb.Append(first == null ? "e" : first.Name);
}
Trace.WriteLine(sb.ToString());
sb = new StringBuilder();
sb.Append(" Follow:");
foreach (var first in nonterminal.Follow)
{
sb.Append(" ");
sb.Append(first == null ? "e" : first.Name);
}
Trace.WriteLine(sb.ToString());
}
ITerminalReaderGenerator terminalReaderGenerator = new TerminalReaderGenerator();
var terminalReaderGeneratorResult = terminalReaderGenerator.GenerateTerminalReader(grammar);
TerminalReader = terminalReaderGeneratorResult.TerminalReader;
IParserGenerator parserGenerator = new ParserGenerator();
var parserGeneratorResult = parserGenerator.GenerateParser(grammar);
Parser = parserGeneratorResult.Parser;
//ITerminalReader terminalReader = terminalReaderGeneratorResult.TerminalReader;
//terminalReader.Open("(123 + 34) / 52");
//IParser parser = parserGeneratorResult.Parser;
//parser.Parse(terminalReader);
//Terminal token = terminalReader.ReadTerminal();
//while (token != null)
//{
// if (!token.ElementType.Ignore)
// {
// Console.WriteLine("{0}: {1}", token.ElementType.Name, token.Text);
// }
// token = terminalReader.ReadTerminal();
//}
//Console.WriteLine("Press Enter to exit.");
//Console.ReadLine();
}