/// <summary>
/// Check if <paramref name="identifier"/> is a simple identifier (i.e., token ID)
/// </summary>
/// <param name="identifier">Tested identifier</param>
/// <returns>
/// true iff <paramref name="identifier"/> is a simple identifier (it matches the ID token)
/// </returns>
private static bool IsSimpleIdentifier(string identifier)
{
// this is not a very nice way to do it but at least we don't have to duplicate
// identifier regex in the code
var lexer = new QueryLexer(new AntlrInputStream(new StringReader(identifier)));
var id = lexer.NextToken().Type;
var eof = lexer.NextToken().Type;
return(id == QueryLexer.ID && eof == QueryLexer.Eof);
}
public void AutoTestCase_Expr_TestPredicateTokenizer8()
{
Value args = new Value();
args.PushBack(Value.StringValue("expr 'foo and bar'"));
QueryLexer tokens = new QueryLexer(args.AsSequence, false);
Assert.Equal(QueryLexerTokenKind.TOK_EXPR, tokens.NextToken().Kind);
Assert.Equal(QueryLexerTokenKind.TERM, tokens.NextToken().Kind);
Assert.Equal(QueryLexerTokenKind.END_REACHED, tokens.NextToken().Kind);
}
public void AutoTestCase_Expr_TestPredicateTokenizer1()
{
Value args = new Value();
args.PushBack(Value.StringValue("foo"));
args.PushBack(Value.StringValue("and"));
args.PushBack(Value.StringValue("bar"));
QueryLexer tokens = new QueryLexer(args.AsSequence);
Assert.Equal(QueryLexerTokenKind.TERM, tokens.NextToken().Kind);
Assert.Equal(QueryLexerTokenKind.TOK_AND, tokens.NextToken().Kind);
Assert.Equal(QueryLexerTokenKind.TERM, tokens.NextToken().Kind);
Assert.Equal(QueryLexerTokenKind.END_REACHED, tokens.NextToken().Kind);
}
public void AutoTestCase_Expr_TestPredicateTokenizer5()
{
Value args = new Value();
args.PushBack(Value.StringValue("( foo and"));
args.PushBack(Value.StringValue("bar)"));
QueryLexer tokens = new QueryLexer(args.AsSequence, false);
Assert.AreEqual(QueryLexerTokenKind.LPAREN, tokens.NextToken().Kind);
Assert.AreEqual(QueryLexerTokenKind.TERM, tokens.NextToken().Kind);
Assert.AreEqual(QueryLexerTokenKind.TOK_AND, tokens.NextToken().Kind);
Assert.AreEqual(QueryLexerTokenKind.TERM, tokens.NextToken().Kind);
Assert.AreEqual(QueryLexerTokenKind.RPAREN, tokens.NextToken().Kind);
Assert.AreEqual(QueryLexerTokenKind.END_REACHED, tokens.NextToken().Kind);
}