private static void TestScanner(string line, TestTokenInfo[] tokens)
{
var scanner = new HamlScanner();
string testLine = "";
foreach (TestTokenInfo token in tokens)
{
token.StartIndex = testLine.Length;
token.EndIndex = token.StartIndex + token.Token.Length -1;
testLine += token.Token;
}
Assert.AreEqual(line, testLine, "Test line doesn't match tokens");
scanner.SetSource(line, 0);
var tokenInfo = new TokenInfo();
int state = 0;
int tokenNum = 0;
while (scanner.ScanTokenAndProvideInfoAboutIt(tokenInfo, ref state))
{
TestTokenInfo token = tokens[tokenNum];
AssertAreEqual(token, tokenInfo, string.Format("Token {0}({1})", tokenNum, token.Token));
tokenNum++;
}
Assert.AreEqual(tokens.Length, tokenNum, "Should have matched {0} tokens but actually matched {1}", tokens.Length, tokenNum);
}
/// <summary>
/// Create and return instantiation of a parser represented by RegularExpressionScanner object.
/// </summary>
/// <param name="buffer">An <see cref="IVsTextLines"/> represents lines of source to parse.</param>
/// <returns>Returns a RegularExpressionScanner object</returns>
public override IScanner GetScanner(IVsTextLines buffer)
{
if (_scanner == null)
{
_scanner = new HamlScanner();
}
return _scanner;
}
