private static BaseLexerRule CreateNotDoubleQuoteLexerRule()
{
// ([^"]|(\\.))*
var start = new DfaState();
var escape = new DfaState();
var final = new DfaState(true);
var notDoubleQuoteTerminal = new NegationTerminal(
new CharacterTerminal('"'));
var escapeTerminal = new CharacterTerminal('\\');
var anyTerminal = new AnyTerminal();
var notDoubleQuoteEdge = new DfaTransition(notDoubleQuoteTerminal, final);
start.AddTransition(notDoubleQuoteEdge);
final.AddTransition(notDoubleQuoteEdge);
var escapeEdge = new DfaTransition(escapeTerminal, escape);
start.AddTransition(escapeEdge);
final.AddTransition(escapeEdge);
var anyEdge = new DfaTransition(anyTerminal, final);
escape.AddTransition(anyEdge);
return new DfaLexerRule(start, new TokenType(@"([^""]|(\\.))+"));
}
public void Test_AnyTerminal_That_IsMatch_Returns_True_When_Any_Character_Specified()
{
var anyTerminal = new AnyTerminal();
for (char c = char.MinValue; c < char.MaxValue; c++)
Assert.IsTrue(anyTerminal.IsMatch(c));
}
private static ILexerRule CreateNotDoubleQuoteLexerRule()
{
// ( [^"\\] | (\\ .) ) +
var start = new DfaState();
var escape = new DfaState();
var final = new DfaState(true);
var notQuoteTerminal = new NegationTerminal(
new SetTerminal('"', '\\'));
var escapeTerminal = new Terminal('\\');
var anyTerminal = new AnyTerminal();
var notQuoteEdge = new DfaEdge(notQuoteTerminal, final);
start.AddEdge(notQuoteEdge);
final.AddEdge(notQuoteEdge);
var escapeEdge = new DfaEdge(escapeTerminal, escape);
start.AddEdge(escapeEdge);
final.AddEdge(escapeEdge);
var anyEdge = new DfaEdge(anyTerminal, final);
escape.AddEdge(anyEdge);
return new DfaLexerRule(start, new TokenType("not-double-quote"));
}
public void AnyTerminalIsMatchShouldReturnTrueWhenAnyCharacterSpecified()
{
var anyTerminal = new AnyTerminal();
for (char c = char.MinValue; c < char.MaxValue; c++)
Assert.IsTrue(anyTerminal.IsMatch(c));
}