/// <summary>
/// Initializes a new instance of the <see cref="Lexer"/> class.
/// </summary>
/// <param name="tokenizer">The <see cref="ITokenizer" /> object used to read the tokens from the input template.</param>
/// <param name="expressionFlowSymbols">The <see cref="ExpressionFlowSymbols" /> object containing the standard expression flow control symbols.</param>
/// <param name="comparer">The <see cref="System.Collections.Generic.IEqualityComparer{String}" /> object used to match keywords and identifiers.</param>
/// <exception cref="System.ArgumentNullException">Either <paramref name="tokenizer" />, <paramref name="expressionFlowSymbols" /> or <paramref name="expressionFlowSymbols" /> are <c>null</c>.</exception>
public Lexer(
[NotNull] ITokenizer tokenizer,
[NotNull] ExpressionFlowSymbols expressionFlowSymbols,
[NotNull] IEqualityComparer <string> comparer)
{
Expect.NotNull(nameof(tokenizer), tokenizer);
Expect.NotNull(nameof(comparer), comparer);
Expect.NotNull(nameof(expressionFlowSymbols), expressionFlowSymbols);
Tokenizer = tokenizer;
Comparer = comparer;
_registeredTags = new List <Tag>();
_expressionOperators = new List <Operator>();
_unaryExpressionOperators = new HashSet <string>(comparer);
_binaryExpressionOperators = new HashSet <string>(comparer);
_specialConstants = new Dictionary <string, object>(comparer);
_expressionFlowSymbols = expressionFlowSymbols;
/* Register the flow symbols in */
_binaryExpressionOperators.Add(expressionFlowSymbols.Separator);
_binaryExpressionOperators.Add(expressionFlowSymbols.MemberAccess);
_unaryExpressionOperators.Add(expressionFlowSymbols.GroupOpen);
_binaryExpressionOperators.Add(expressionFlowSymbols.GroupClose);
}
public void TestCaseConstruction3()
{
var flowSymbols = new ExpressionFlowSymbols("A", "B", "C", "D");
Assert.AreEqual("A", flowSymbols.Separator);
Assert.AreEqual("B", flowSymbols.MemberAccess);
Assert.AreEqual("C", flowSymbols.GroupOpen);
Assert.AreEqual("D", flowSymbols.GroupClose);
}
/// <summary>
/// Initializes a new instance of the <see cref="Interpreter"/> class.
/// </summary>
/// <param name="tokenizer">The <c>tokenizer</c> instance.</param>
/// <param name="expressionFlowSymbols">The expression flow symbols.</param>
/// <param name="comparer">The keyword and identifier comparer.</param>
/// <exception cref="ArgumentNullException">Argument <paramref name="tokenizer"/> or <paramref name="expressionFlowSymbols"/> or <paramref name="comparer"/> is <c>null</c>.</exception>
public Interpreter(
[NotNull] ITokenizer tokenizer,
[NotNull] ExpressionFlowSymbols expressionFlowSymbols,
[NotNull] IEqualityComparer <string> comparer)
{
Expect.NotNull(nameof(tokenizer), tokenizer);
Expect.NotNull(nameof(comparer), comparer);
Expect.NotNull(nameof(expressionFlowSymbols), expressionFlowSymbols);
_lexer = new Lexer(tokenizer, expressionFlowSymbols, comparer);
_registeredDirectives = new List <Directive>();
}
