public void TestResetOnANTLRInputStream()
{
Encoding encoding = Encoding.Unicode;
byte[] buffer = encoding.GetBytes("One\r\nTwo");
MemoryStream grammarStream = new MemoryStream(buffer);
ANTLRInputStream inputStream = new ANTLRInputStream(grammarStream, encoding);
Assert.AreEqual(0, inputStream.Index);
Assert.AreEqual(0, inputStream.CharPositionInLine);
Assert.AreEqual(1, inputStream.Line);
inputStream.Consume(); // O
inputStream.Consume(); // n
Assert.AreEqual('e', inputStream.LA(1));
Assert.AreEqual(2, inputStream.Index);
inputStream.Reset();
Assert.AreEqual('O', inputStream.LA(1));
Assert.AreEqual(0, inputStream.Index);
Assert.AreEqual(0, inputStream.CharPositionInLine);
Assert.AreEqual(1, inputStream.Line);
inputStream.Consume(); // O
Assert.AreEqual('n', inputStream.LA(1));
Assert.AreEqual(1, inputStream.Index);
Assert.AreEqual(1, inputStream.CharPositionInLine);
Assert.AreEqual(1, inputStream.Line);
inputStream.Consume(); // n
Assert.AreEqual('e', inputStream.LA(1));
Assert.AreEqual(2, inputStream.Index);
Assert.AreEqual(2, inputStream.CharPositionInLine);
Assert.AreEqual(1, inputStream.Line);
inputStream.Consume(); // e
}
public void TestResetOnANTLRInputStream()
{
Encoding encoding = Encoding.Unicode;
byte[] buffer = encoding.GetBytes("One\r\nTwo");
MemoryStream grammarStream = new MemoryStream(buffer);
ANTLRInputStream inputStream = new ANTLRInputStream(grammarStream, encoding);
Assert.AreEqual(0, inputStream.Index());
Assert.AreEqual(0, inputStream.CharPositionInLine);
Assert.AreEqual(1, inputStream.Line);
inputStream.Consume(); // O
inputStream.Consume(); // n
Assert.AreEqual('e', inputStream.LA(1));
Assert.AreEqual(2, inputStream.Index());
inputStream.Reset();
Assert.AreEqual('O', inputStream.LA(1));
Assert.AreEqual(0, inputStream.Index());
Assert.AreEqual(0, inputStream.CharPositionInLine);
Assert.AreEqual(1, inputStream.Line);
inputStream.Consume(); // O
Assert.AreEqual('n', inputStream.LA(1));
Assert.AreEqual(1, inputStream.Index());
Assert.AreEqual(1, inputStream.CharPositionInLine);
Assert.AreEqual(1, inputStream.Line);
inputStream.Consume(); // n
Assert.AreEqual('e', inputStream.LA(1));
Assert.AreEqual(2, inputStream.Index());
Assert.AreEqual(2, inputStream.CharPositionInLine);
Assert.AreEqual(1, inputStream.Line);
inputStream.Consume(); // e
}
