protected static IEnumerable <NodeBase> Parse(string source)
{
var lexer = new LensLexer(source);
var parser = new LensParser(lexer.Lexems);
return(parser.Nodes);
}
public void StringEscapeTest()
{
void TestEscape(string str, string expectedString)
{
var lexer = new LensLexer(str);
Assert.AreEqual(lexer.Lexems.Count, 2);
Assert.AreEqual(lexer.Lexems[0].Type, LexemType.String);
Assert.AreEqual(lexer.Lexems[0].Value, expectedString);
}
TestEscape(@"""\n""", "\n");
TestEscape(@"""\t""", "\t");
TestEscape(@"""\r""", "\r");
TestEscape(@"""\\""", "\\");
TestEscape("\"\\\\\"", "\\");
}
public void CharEscapeTest()
{
void TestEscape(string str, string expectedChar)
{
var lexer = new LensLexer(str);
Assert.AreEqual(lexer.Lexems.Count, 2);
Assert.AreEqual(lexer.Lexems[0].Type, LexemType.Char);
Assert.AreEqual(lexer.Lexems[0].Value, expectedChar);
}
TestEscape(@"'\n'", "\n");
TestEscape(@"'\t'", "\t");
TestEscape(@"'\r'", "\r");
TestEscape(@"'\\'", "\\");
TestEscape("'\\\\'", "\\");
}
private void Test(string str, params LexemType[] types)
{
var lexer = new LensLexer(str);
Assert.AreEqual(types, lexer.Lexems.Select(l => l.Type).ToArray());
}