public void nextToken()
{
if (indiceToken == lexBuf.Count - 1)
{
if (codeToParse == string.Empty)
{
}
lexCode();
}
indiceToken++;
if (indiceToken >= lexBuf.Count)
{
throw new Exception();
}
currentToken = lexBuf.ElementAt(indiceToken);
}
public void nextTokenIfEquals(Token.TokenValue value)
{
if (currentTokenEquals(value))
{
nextToken();
}
else
{
throw new SyntaxError(lineNumber, colNumber, value);
}
}
private static byte tokenPriority(Token.TokenValue tok)
{
switch (tok)
{
case Token.TokenValue.AND:
return 9;
case Token.TokenValue.OR:
return 8;
case Token.TokenValue.GT:
case Token.TokenValue.LT:
case Token.TokenValue.GEQ:
case Token.TokenValue.LEQ:
case Token.TokenValue.EQBOOL:
return 7;
case Token.TokenValue.NEG:
return 6;
case Token.TokenValue.PLUS:
case Token.TokenValue.MINUS:
return 4;
case Token.TokenValue.TIMES:
case Token.TokenValue.DIV:
return 3;
default:
return 0;
}
}
public void previousToken()
{
indiceToken--;
if (indiceToken < 0)
{
throw new Exception();
}
currentToken = lexBuf.ElementAt(indiceToken);
}
public bool isAnAssignOperator(Token.TokenValue op)
{
switch (op)
{
case Token.TokenValue.EQ:
case Token.TokenValue.PLUSEQ:
case Token.TokenValue.MINUSEQ:
case Token.TokenValue.TIMESEQ:
case Token.TokenValue.DIVEQ:
case Token.TokenValue.PLUSPLUS:
case Token.TokenValue.MINUSMINUS:
case Token.TokenValue.TIMESTIMES:
return true;
default:
return false;
}
}
private BinaryOperatorExpression balanceBinaryExpression(SimpleExpression exp, Token.TokenValue op, BinaryOperatorExpression binExp)
{
if (tokenPriority(op) >= tokenPriority(binExp.op))
{
return new BinaryOperatorExpression(op, exp, binExp);
}
if (binExp.e1 is BinaryOperatorExpression)
{
return new BinaryOperatorExpression(binExp.op, balanceBinaryExpression(exp, op, (BinaryOperatorExpression)binExp.e1), binExp.e2);
}
return new BinaryOperatorExpression(binExp.op, new BinaryOperatorExpression(op, exp, binExp.e1), binExp.e2);
}
public UnaryOperatorExpression(Token.TokenValue operatorToken, SimpleExpression expr)
{
op = operatorToken;
exp = expr;
}
public VariableUpdate(PathExpression varPath, Token.TokenValue opUpdate)
{
this.variable = varPath;
this.op = opUpdate;
}
public bool startParse()
{
/*if (lexBuf.Count == 0)
{
return true;
}*/
if (codeToParse == string.Empty)
{
return true;
}
lexCode();
currentToken = lexBuf.ElementAt(indiceToken);
try
{
while (!currentTokenEquals(Token.TokenValue.EOF))
{
switch (currentToken.type)
{
case Token.TokenValue.NPC:
script.addNpc(parseNpc());
break;
default:
return false;
}
}
}
catch (BaseException e)
{
//Print.Printer.printError("[Exception]");
//IrisPrinter.Printer.printError(e.ExceptionToString());
System.Windows.MessageBox.Show(e.ExceptionToString());
return false;
}
return true;
}
public BinaryOperatorExpression(Token.TokenValue opValue, SimpleExpression left, SimpleExpression right)
{
this.op = opValue;
this.e1 = left;
this.e2 = right;
}
/*public bool nextTokenEquals(Token.TokenValue value)
{
if (indiceToken + 1 >= lexBuf.Count)
{
//erreur
return false;
//throw new Exception();
}
return (lexBuf.ElementAt(indiceToken + 1).type == value);
}*/
public bool currentTokenEquals(Token.TokenValue value)
{
/*if (indiceToken >= lexBuf.Count)
{
//erreur
return false;
}*/
return (currentToken.type == value);
}
public bool startParse()
{
if (codeToParse == string.Empty || codeToParse == null)
{
return true;
}
lexCode();
currentToken = lexBuf.ElementAt(indiceToken);
try
{
while (!currentTokenEquals(Token.TokenValue.EOF))
{
switch (currentToken.type)
{
case Token.TokenValue.CHARACTER:
script.addCharacter(parseCharacter());
break;
case Token.TokenValue.IMAGE:
script.addImage(parseImage());
break;
case Token.TokenValue.SOUND:
script.addSound(parseSound());
break;
case Token.TokenValue.BACKGROUND:
script.addBackground(parseBackground());
break;
default:
return false;
}
}
}
catch (BaseException e)
{
System.Windows.MessageBox.Show(e.ExceptionToString());
return false;
}
fileStream.Close();
return true;
}
public LiteralExpression(Token val)
{
this.value = val;
}
public bool currentTokenEquals(Token.TokenValue value)
{
return (currentToken.type == value);
}
public void nextToken()
{
if (indiceToken == lexBuf.Count - 1)
{
lexCode();
}
indiceToken++;
if (indiceToken >= lexBuf.Count)
{
//erreur
//return;
throw new Exception();
}
currentToken = lexBuf.ElementAt(indiceToken);
}
public bool startParse()
{
if (codeToParse == string.Empty || codeToParse == null)
{
return true;
}
lexCode();
currentToken = lexBuf.ElementAt(indiceToken);
try
{
while (!currentTokenEquals(Token.TokenValue.EOF))
{
switch (currentToken.type)
{
case Token.TokenValue.NPC:
script.addNpc(parseNpc());
break;
default:
return false;
}
}
}
catch (BaseException e)
{
System.Windows.MessageBox.Show(e.ExceptionToString());
return false;
}
fileStream.Close();
return true;
}
public static string tokenstring(Token tok)
{
return tokenstring(tok);
}