public void SkipGramarParseTest()
{
// get skip parse table
Grammar skipGrammar = GrammarParser.Parse(c_skipGrammar);
var skipParseTable = ParserTableConstructor.Construct(skipGrammar);
var skipGrammarStr = string.Join(Environment.NewLine, skipGrammar.Rules);
var skipTableStr = new ParserTableFormatter().Format(skipParseTable);
Console.Write(skipGrammarStr);
Console.WriteLine();
Console.Write(skipTableStr);
Console.WriteLine();
Console.WriteLine();
var skipParser = new Parser(skipParseTable);
skipParser.Parse("till 5 pm".Split(' '));
skipParser.Parse("begin at 9 am and run to 5 pm nonstop".Split(' '));
}
public void NoSkipGramarParseTest()
{
// get non-skip parse table
Grammar grammar = GrammarParser.Parse(c_noSkipGrammar);
var parseTable = ParserTableConstructor.Construct(grammar);
var grammarStr = string.Join(Environment.NewLine, grammar.Rules);
var tableStr = new ParserTableFormatter().Format(parseTable);
Console.Write(grammarStr);
Console.WriteLine();
Console.Write(tableStr);
Console.WriteLine();
Console.WriteLine();
var noSkipParser = new Parser(parseTable);
noSkipParser.Parse("from 9 am".Split(' '));
noSkipParser.Parse("begin from 9 am".Split(' '));
noSkipParser.Parse("from 9 am finish".Split(' '));
}