private static INode GetTree(string str)
{
var parser = new SimpleParser<Arithmetic, double>(double.Parse,
t => t.IsGenericType && t.IsSubclassOf(typeof(BinaryOp)));
var tree = parser.Parse(str);
return tree;
}
/// <summary>
/// Parse a line with space separators.
/// </summary>
/// <param name="line">The line to parse.</param>
/// <returns>The list of items from the line.</returns>
private static List<String> ParseSpaceSep(String line)
{
var result = new List<String>();
var parse = new SimpleParser(line);
while (!parse.EOL())
{
result.Add(parse.Peek() == '\"' ? parse.ReadQuotedString() : parse.ReadToWhiteSpace());
parse.EatWhiteSpace();
}
return result;
}
public static void Main(string[] args)
{
if (args.Length > 0)
{
ICharStream input = new ANTLRFileStream(args[0]);
SimpleLexer lex = new SimpleLexer(input);
CommonTokenStream tokens = new CommonTokenStream(lex);
SimpleParser parser = new SimpleParser(tokens);
parser.program();
}
else
Console.Error.WriteLine("Usage: island <input-file>");
}
private static string MatchEval(Match m, object data, bool htmlEncode)
{
var parser = new SimpleParser(m.Groups[1].Value)
{
GlobalType = data.GetType(),
StaticTypes = new[] { typeof(Path) },
};
var valueExecutor = parser.Read<TemplateParser.ValueBuilder, TemplateParser.INode>();
var type = valueExecutor.Compile(parser.GlobalType);
var value = valueExecutor.Execute(data);
var result = value.ToString();
if (htmlEncode)
result = HttpUtility.HtmlEncode(result);
return result;
}
/// <summary>
/// Parse a value.
/// </summary>
///
/// <param name="parser">The parser to use.</param>
/// <returns>The newly parsed value.</returns>
private static String ParseValue(SimpleParser parser)
{
bool quoted = false;
var str = new StringBuilder();
parser.EatWhiteSpace();
if (parser.Peek() == '\"')
{
quoted = true;
parser.Advance();
}
while (!parser.EOL())
{
if (parser.Peek() == '\"')
{
if (quoted)
{
parser.Advance();
if (parser.Peek() == '\"')
{
str.Append(parser.ReadChar());
}
else
{
break;
}
}
else
{
str.Append(parser.ReadChar());
}
}
else if (!quoted &&
(parser.IsWhiteSpace() || (parser.Peek() == ',')))
{
break;
}
else
{
str.Append(parser.ReadChar());
}
}
return(str.ToString());
}
public static CommonTree Parse(string formula)
{
var m = new MemoryStream(Encoding.UTF8.GetBytes(formula));
var input = new ANTLRInputStream(m);
// Create lexer
var lexer = new SimpleLexer(input);
var tokens = new CommonTokenStream(lexer);
// Create parser and start evaluating from start rule
var parser = new SimpleParser(tokens);
var tree = parser.start();
var root = (CommonTree)tree.Tree;
return(root);
}
public ParsedOutputConverter()
{
var simpleParser = new SimpleParser();
var attackParser = new AttackParser();
var narrsParser = new NarrsParser();
Store.TcpReceive.SubscribeAsync(async(message) => {
var lines = ControlCharacterEncoder.EncodeAndSplit(message);
var parsedWithStatusSeparate = new StatusParser().Parse(lines);
var parsedWithStatusAndRoomSeparate = RoomParser.Parse(parsedWithStatusSeparate);
foreach (var output in parsedWithStatusAndRoomSeparate)
{
if (output.Type != ParsedOutputType.Raw)
{
continue;
}
output.LineMetadata = new LineMetadata[output.Lines.Length];
int i = 0;
foreach (var line in output.Lines)
{
// todo: is having a separate lineMetadata array the way to go? it minimizes copies a little bit but it's ugly and also in some ways doesnt
output.LineMetadata[i] = new LineMetadata();
var result = simpleParser.Parse(line);
if (result != LineMetadataType.None)
{
output.LineMetadata[i].Type = result;
}
else if (attackParser.Matches(line))
{
output.LineMetadata[i].Type = LineMetadataType.Attack;
}
else if (narrsParser.Matches(line))
{
output.LineMetadata[i].Type = LineMetadataType.Communication;
}
i++;
}
}
await Store.ParsedOutput.SendAsync(parsedWithStatusAndRoomSeparate);
});
}
public void NextIs()
{
var parser = new SimpleParser("<asdf/>");
Assert.IsFalse(parser.NextIs("asdf"));
Assert.IsTrue(parser.NextIs('<'));
Assert.AreEqual(0, parser.Position);
Assert.IsTrue(parser.NextIs("<asdf/>"));
Assert.AreEqual(0, parser.Position);
Assert.IsTrue(parser.NextIs('<'));
parser.ReadUntil('/');
parser.Unskip(1);
Assert.IsTrue(parser.NextIs('/'));
Assert.IsFalse(parser.NextIs("asdf"));
Assert.IsTrue(parser.NextIs('/'));
Assert.IsTrue(parser.NextIs("/>"));
Assert.IsTrue(parser.NextIs('/'));
}
private static string MatchEval(Match m, object data, bool htmlEncode)
{
var parser = new SimpleParser(m.Groups[1].Value)
{
GlobalType = data.GetType()
};
var valueExecutor = parser.Read <TemplateParser.ValueBuilder, TemplateParser.INode>();
var type = valueExecutor.Compile(parser.GlobalType);
var value = valueExecutor.Execute(data);
var result = value.ToString();
if (htmlEncode)
{
result = HttpUtility.HtmlEncode(result);
}
return(result);
}
private TableSchema ParseCreateTable(string sql)
{
var parser = new SimpleParser(sql);
var tableSchema = new TableSchema();
tableSchema.Columns = new List <ColumnSchema>();
parser.SkipOverString("create table");
tableSchema.TableName = parser.TakeWord();
parser.SkipOverString("(");
while (!parser.AtEnd() && !parser.Is(')'))
{
var column = new ColumnSchema();
tableSchema.Columns.Add(column);
column.ColumnName = parser.TakeWord();
column.DataType = parser.TakeWord();
var attributes = parser.TakeToAny(new[] { ',', ')' }).ToUpper();
if (attributes.Contains("PRIMARY KEY"))
{
column.Attributes = column.Attributes | ColumnAttributes.Primary;
}
if (attributes.Contains("NOT NULL"))
{
column.Attributes = column.Attributes | ColumnAttributes.NotNull;
}
if (attributes.Contains("UNIQUE"))
{
column.Attributes = column.Attributes | ColumnAttributes.Unique;
}
if (attributes.Contains("AUTOINCREMENT"))
{
column.Attributes = column.Attributes | ColumnAttributes.AutoIncrement;
}
if (string.Equals(column.DataType, "TEXT", StringComparison.OrdinalIgnoreCase) && !attributes.Contains("COLLATE NOCASE"))
{
column.Attributes = column.Attributes | ColumnAttributes.CaseSensitive;
}
}
return(tableSchema);
}
public static void TestReturnsZeroWhenEmptyString()
{
//use reflection to get the current method's name
string testName = MethodBase.GetCurrentMethod().Name;
try
{
SimpleParser p = new SimpleParser();
int result = p.ParseAndSum("1");
if (result != 0)
{
TestUtil.ShowProblem(testName, "Parse and sum should have returned 0 on an empty string");
}
}
catch (Exception e)
{
TestUtil.ShowProblem(testName, e.ToString());
}
}
public static void TestReturnsZeroWhenEmptyString()
{
try
{
SimpleParser p = new SimpleParser();
int result = p.ParseAndSum(string.Empty);
if (result != 0)
{
Console.WriteLine(
@"***SimpleParserTests.TestReturnsZeroWhenEmptyString:
-------
Parse and sum should have returned 0 on an empty string");
}
}
catch (Exception e)
{
Console.WriteLine(e);
}
}
public static void TestReturnsZeroWhenEmptyString()
{
// 현재 메서드의 이름을 얻기위해 리플렉션 API사용.
string testName = MethodBase.GetCurrentMethod().Name;
try
{
SimpleParser p = new SimpleParser();
int result = p.ParseAndSum(string.Empty);
if (result != 0)
{
Console.WriteLine(@"SimplePArserTests.TestReturnsZeroWhenEmptyString: ParseAndSum은 빈 문자열에 대해 0을 반환해야한다.");
}
}
catch (Exception e)
{
TestUtil.ShowProblem(testName, e.ToString());
}
}
public HardwareEmulator(string port)
{
_port = new SerialPort(port, baudRate: 115200, parity: Parity.None, dataBits: 8, stopBits: StopBits.One);
_port.ReceivedBytesThreshold = 14;
_port.DataReceived += PortOnDataReceived;
try
{
if (!_port.IsOpen)
{
_port.Open();
}
_port.DiscardInBuffer();
_port.DiscardOutBuffer();
}
catch { }
_parser = new SimpleParser();
_parser.Received += (sender, s) => Received?.Invoke(sender, s);
}
private IndexSchema ParseCreateIndex(string sql)
{
var parser = new SimpleParser(sql);
var indexSchema = new IndexSchema();
indexSchema.Attributes = IndexAttributes.CaseSensitive;
parser.SkipOverString("CREATE");
if (parser.TakeWord().ToUpper() == "UNIQUE")
{
indexSchema.Attributes = indexSchema.Attributes | IndexAttributes.Unique;
parser.SkipOverString("INDEX");
}
indexSchema.IndexName = parser.TakeWord();
if (indexSchema.IndexName.ToUpper() == "IF")
{
parser.SkipOverString("EXISTS");
indexSchema.IndexName = parser.TakeWord();
}
parser.SkipOverString("ON");
parser.TakeWord(); // table name
parser.SkipOverString("(");
var columnNames = new List <string>();
while (!parser.AtEnd() && !parser.Is(')'))
{
columnNames.Add(parser.TakeWord());
parser.SkipAny(' ');
var columnOptions = parser.TakeToAny(',', ')').ToUpper();
if (columnOptions.Contains("COLLATE NOCASE"))
{
indexSchema.Attributes = indexSchema.Attributes & ~IndexAttributes.CaseSensitive;
}
parser.Skip(1);
}
indexSchema.ColumnNames = columnNames.ToArray();
return(indexSchema);
}
static void ParseAddressesHelper(List <string> addresses, SimpleParser p, bool ipv6, List <string> rejectedAddresses)
{
string address;
while (true)
{
address = p.TrySeekAndExtract("", ipv6 ? IPv6Prefix : IPv4Prefix, IpSuffix).Trim();
if (address == "")
{
return;
}
if (IsValidIpOrSubnet(address, ipv6))
{
addresses.Add(address);
}
else
{
rejectedAddresses.Add(address);
}
}
}
public void SplitFace_ShouldWorkForComplicatedFile()
{
// Arrange
var path = "D:\\Git\\PolygonMesh\\PolygonMesh.Library.Tests\\Resources\\torus.obj";
var vecs = SimpleParser.Parse(path, out var faces);
var mesh = Mesh.Core.Mesh.CreateFromPositions(vecs, faces);
// Act
var initialFaces = mesh.FaceCount;
var initialVertices = mesh.VertexCount;
for (int i = 0; i < initialFaces; i++)
{
mesh.SplitFace(i);
}
// Assert
Assert.AreEqual(initialVertices, mesh.VertexCount);
Assert.AreEqual(initialFaces * 2, mesh.FaceCount);
SimpleExporter.Export("D:\\Git\\PolygonMesh\\PolygonMesh.Library.Tests\\Resources\\test.obj", mesh);
}
public static Command Parse(string[] args, IList <ICommandMapper> commands, Func <Type, Command> commandTypeResolver = null)
{
var resolver = commandTypeResolver ?? DefaultResolver;
var parser = new SimpleParser(args, true);
var cmd = parser.Arguments[0].ToLower();
var mapper = commands.FirstOrDefault(commandMapper => commandMapper.CommandName.ToLower() == cmd);
if (mapper == null)
{
throw new ArgumentException($"No CommandMapper found for command: '{cmd}'.", nameof(args));
}
var commandType = mapper.CommandType;
var command = resolver(commandType);
mapper.MapArguments(parser.Arguments, command);
parser.SetOptionAndFlagValues(command);
Validator.ValidateObject(command, new ValidationContext(command));
return(command);
}
static void Main(string[] args)
{
// TODO: Show usage
var clap = new SimpleParser(args);
var inputs = clap.Arguments;
var options = GetOptions(clap);
options = CheckOptions(inputs, options);
Console.WriteLine("Plaiting...");
ShowOptions(options, inputs);
var bitmaps = ReadImages(inputs);
var output = Plait(bitmaps, options);
bitmaps.Dispose();
SaveImage(output, options.OutputFilename);
}
private static bool ParseArgs(string[] args, SimpleParser parser)
{
if (args.Length == 0)
{
Console.WriteLine("");
Console.WriteLine("Usage:");
Console.WriteLine("--path: Specifies path to a Unity generated Log file, which will be the file to parse.");
Console.WriteLine("--output: Specifies path to where the CSV containing the categorized entries should be written to.");
Console.WriteLine("");
Console.WriteLine(@"Sample command line: dotnet SimpleLogParser.dll --path C:\Projects\Game01\Editor.log --output C:\Projects\Game01\CategorizedLog.csv");
Console.WriteLine("");
return(false);
}
for (int i = 0; i < args.Length; ++i)
{
if (args[i] == "--path")
{
parser.EditorLogPath = args[i + 1];
}
else if (args[i] == "--output")
{
parser.OutputPath = args[i + 1];
}
}
if (parser.EditorLogPath == null)
{
Console.WriteLine("Error: Path to log file must be specified. Please use --path followed by the path to the file.");
return(false);
}
if (parser.OutputPath == null)
{
Console.WriteLine("Error: Path to where categorized CSV file should be written to was not specified. Please add --output followed by the path to where this file should be written.");
return(false);
}
return(true);
}
// Here's where we do the real work...
public static void ParseJavaFile(string f)
{
try
{
// Create a scanner that reads from the input stream passed to us
SimpleLexer lexer = new SimpleLexer(new ANTLRFileStream(f));
CommonTokenStream tokens = new CommonTokenStream();
tokens.TokenSource = lexer;
// Create a parser that reads from the scanner
SimpleParser parser = new SimpleParser(tokens);
// start parsing at the file rule
parser.file();
}
catch (Exception e)
{
Console.Error.WriteLine("[ERROR}");
Console.Error.WriteLine("parser exception: " + e);
Console.Error.WriteLine(e.StackTrace); // so we can get stack trace
}
}
public void TestMatchStringEquals()
{
const string expressionJson = @"
[""equals"",
[""field"", ""name""],
[""value"",""Daphne Sutton""]
]";
var expressionBytes = Encoding.UTF8.GetBytes(expressionJson);
var parser = new SimpleParser();
var expression = parser.ParseJsonExpression(expressionBytes);
var matcher = new SlowMatcher(new[] { expression });
var ids = new[] { "5b47eb0936ff92a567a0307e" };
foreach (var entry in _peopleData.Where(x => ids.Contains(x.Key)))
{
var data = Encoding.UTF8.GetBytes(entry.Value);
Assert.True(matcher.Match(data));
}
}
public void TestMatcherNumericEquals()
{
const string expressionJson = @"
[""equals"",
[""field"",""age""],
[""value"",25]
]";
var expressionBytes = Encoding.UTF8.GetBytes(expressionJson);
var parser = new SimpleParser();
var expression = parser.ParseJsonExpression(expressionBytes);
var matcher = new SlowMatcher(new[] { expression });
var ids = new[] { "5b47eb091f57571d3c3b1aa1" };
foreach (var entry in _peopleData.Where(x => ids.Contains(x.Key)))
{
var data = Encoding.UTF8.GetBytes(entry.Value);
Assert.True(matcher.Match(data));
}
}
public void TestMatcherFloatEquals()
{
const string expressionJson = @"
[""equals"",
[""field"",""latitude""],
[""value"",-40.262556]
]";
var expressionBytes = Encoding.UTF8.GetBytes(expressionJson);
var parser = new SimpleParser();
var expression = parser.ParseJsonExpression(expressionBytes);
var matcher = new SlowMatcher(new[] { expression });
var ids = new[] { "5b47eb096b1d911c0b9492fb" };
foreach (var entry in _peopleData.Where(x => ids.Contains(x.Key)))
{
var data = Encoding.UTF8.GetBytes(entry.Value);
Assert.True(matcher.Match(data));
}
}
public static void TestReturnsZeroWhenEmptyString()
{
string testName = MethodBase.GetCurrentMethod().Name;
try
{
SimpleParser p = new SimpleParser();
int result = p.ParseAndSum(string.Empty);
if (result != 0)
{
TestUtility.ShowProblem(testName, "FAILED: Parse and sum should have returned 0 on an empty string");
}
else
{
TestUtility.ShowProblem(testName, "PASSED");
}
}
catch (Exception e)
{
TestUtility.ShowProblem(testName, string.Format("FAILED: {0}", e.ToString()));
}
}
public void TestMatcherDisparateTypeEquals()
{
const string expressionJson = @"
[""equals"",
[""field"", ""sometimesValue""],
[""value"", ""thisShouldBeABoolean""]
]";
var expressionBytes = Encoding.UTF8.GetBytes(expressionJson);
var parser = new SimpleParser();
var expression = parser.ParseJsonExpression(expressionBytes);
var matcher = new SlowMatcher(new[] { expression });
var ids = new[] { "5b47eb0936ff92a567a0307e", "5b47eb096b1d911c0b9492fb" };
foreach (var entry in _peopleData.Where(x => ids.Contains(x.Key)))
{
var data = Encoding.UTF8.GetBytes(entry.Value);
Assert.True(matcher.Match(data));
}
}
public void TestMatcherMissingStringEquals()
{
const string expressionJson = @"
[""equals"",
[""field"", ""someValueWhichNeverExists""],
[""value"", ""hello""]
]";
var expressionBytes = Encoding.UTF8.GetBytes(expressionJson);
var parser = new SimpleParser();
var expression = parser.ParseJsonExpression(expressionBytes);
var matcher = new SlowMatcher(new[] { expression });
var ids = new string[] { };
foreach (var entry in _peopleData.Where(x => ids.Contains(x.Key)))
{
var data = Encoding.UTF8.GetBytes(entry.Value);
Assert.True(matcher.Match(data));
}
}
// Here's where we do the real work...
public static void ParseJavaFile(string f)
{
try
{
// Create a scanner that reads from the input stream passed to us
SimpleLexer lexer = new SimpleLexer(new ANTLRFileStream(f));
CommonTokenStream tokens = new CommonTokenStream();
tokens.TokenSource = lexer;
// Create a parser that reads from the scanner
SimpleParser parser = new SimpleParser(tokens);
// start parsing at the file rule
parser.file();
}
catch (Exception e)
{
Console.Error.WriteLine("[ERROR}");
Console.Error.WriteLine("parser exception: " + e);
Console.Error.WriteLine(e.StackTrace); // so we can get stack trace
}
}
public void ReadUntil()
{
Assert.AreEqual("", new SimpleParser("abcabc").ReadUntil('a'));
Assert.AreEqual("a", new SimpleParser("abcabc").ReadUntil('b'));
Assert.AreEqual("ab", new SimpleParser("abcabc").ReadUntil('c'));
Assert.AreEqual("abcabc", new SimpleParser("abcabc").ReadUntil('d'));
Assert.AreEqual("", new SimpleParser("").ReadUntil('d'));
var p = new SimpleParser("abc.def ghi");
Assert.AreEqual('\0', p.LastChar);
Assert.AreEqual('a', p.NextChar.Value);
Assert.AreEqual("abc", p.ReadUntil('.', ' '));
Assert.AreEqual('.', p.LastChar);
Assert.AreEqual('d', p.NextChar.Value);
Assert.AreEqual("def", p.ReadUntil('.', ' '));
Assert.AreEqual(' ', p.LastChar);
Assert.IsTrue(p.HasNext);
Assert.AreEqual("ghi", p.ReadUntil());
Assert.AreEqual('i', p.LastChar);
Assert.IsNull(p.NextChar);
Assert.IsFalse(p.HasNext);
}
public void TestBuilding()
{
var x = Parser.ParseString("(node {attr (node 3.14) attr2 (node [\"6\" \"7\"])} [true false null])");
var s = SimpleParser.Build(x);
var n = s as Node;
AssertNode(n, "node", 2, 3);
var attr = n.Attributes["attr"];
var attrNode = attr as Node;
AssertNode(attrNode, "node", 0, 1);
AssertNumberLiteral(attrNode.Children[0] as NumberLiteral, 3, 14);
var attr2 = n.Attributes["attr2"];
var attr2Node = attr2 as Node;
AssertNode(attr2Node, "node", 0, 2);
AssertStringLiteral(attr2Node.Children[0] as StringLiteral, "6");
AssertStringLiteral(attr2Node.Children[1] as StringLiteral, "7");
AssertBooleanLiteral(n.Children[0] as BooleanLiteral, true);
AssertBooleanLiteral(n.Children[1] as BooleanLiteral, false);
Assert.AreEqual(n.Children[2].GetType(), typeof(NullLiteral));
// a few other cases
var fn = TestHelper.MakeTempFile("(node (node {a 1 b 2}))");
s = SimpleParser.Parse(fn);
TestHelper.DeleteTempFile(fn);
n = s as Node;
AssertNode(n, "node", 0, 1);
n = n.Children[0] as Node;
AssertNode(n, "node", 2, 0);
AssertNumberLiteral(n.Attributes["a"] as NumberLiteral, 1, 0);
}
private Node <string> CallParse()
{
if (txtInput.Text.Length == 0)
{
AddTextLineToOutput("No input specified", Color.Red);
return(null);
}
var parser = new SimpleParser(lexer);
try
{
parser.Parse(txtInput.Text);
RenderTree(parser.SyntaxTree);
AddTextLineToOutput("Parsing succeeded", Color.DarkGreen);
return(parser.SyntaxTree);
}
catch (ParserException ex)
{
AddTextLineToOutput(ex.Message, Color.Red);
return(null);
}
}
public static void TestReturnsNumberWhenStringContainsOneNumber()
{
string testName = MethodBase.GetCurrentMethod().Name;
try
{
SimpleParser p = new SimpleParser();
string numbers = "324";
int result = p.ParseAndSum(numbers);
if (result == Convert.ToInt32(numbers))
{
TestUtility.ShowProblem(testName, "PASSED");
}
else
{
TestUtility.ShowProblem(testName, "FAILED: Parse and sum should have returned a single number.");
}
}
catch (Exception e)
{
TestUtility.ShowProblem(testName, string.Format("FAILED: {0}", e.ToString()));
}
}
public static void TestReturnsSumWhenStringContainsMoreThanOneNumber()
{
string testName = MethodBase.GetCurrentMethod().Name;
try
{
SimpleParser p = new SimpleParser();
string numbers = "5,10,15,20,25,30,40";
int result = p.ParseAndSum(numbers);
if (result == 145)
{
TestUtility.ShowProblem(testName, "PASSED");
}
else
{
TestUtility.ShowProblem(testName, "FAILED: Parse and sum should have returned the correct summation");
}
}
catch (Exception e)
{
TestUtility.ShowProblem(testName, string.Format("FAILED: {0}", e.ToString()));
}
}
/// <summary>
/// Create the behaviors.
/// </summary>
/// <param name="types">The behavior types.</param>
/// <param name="simulation">The simulation.</param>
/// <param name="entities">The circuit entities.</param>
public override void CreateBehaviors(Type[] types, Simulation simulation, EntityCollection entities)
{
// Get the expression
var expression = ParameterSets.Get <BaseParameters>().Expression;
// We first want to create the behaviors of sources for which we will use the current branches
var parser = new SimpleParser();
// Get our own parameter
var bp = simulation.EntityParameters[Name].Get <BaseParameters>();
// We want to avoid throwing exceptions on variables, functions or spice properties, we just want to find the
// voltage sources our component depends on
parser.VariableFound += (sender, e) => e.Result = 0.0;
parser.FunctionFound += (sender, e) => e.Result = 0.0;
parser.SpicePropertyFound += (sender, e) =>
{
if (bp.SpicePropertyComparer.Equals(e.Property.Identifier, "I"))
{
// Get the component name
var source = e.Property[0];
if (bp.Instance != null)
{
source = bp.Instance.GenerateIdentifier(source);
}
// Make sure its behaviors are created before ours
entities[source].CreateBehaviors(types, simulation, entities);
}
e.Apply(() => 0.0);
};
parser.Parse(expression);
// Now we can continue with out own behavior creation
base.CreateBehaviors(types, simulation, entities);
}
public static void TestReturnsZeroWhenEmptyString()
{
//wykorzystanie API refleksji frameworka .NET
// do uzyskania bieżącej nazwy metody
// można by ją zakodować na sztywno,
//ale posługiwanie się refleksjami jest użyteczną techniką, którą warto znać
string testName = MethodBase.GetCurrentMethod().Name;
try
{
SimpleParser p = new SimpleParser();
int result = p.ParseAndSum("1");
if (result != 0)
{
// Wywołanie metody pomocniczej
TestUtil.ShowProblem(testName,
"Metoda ParseAndSum powinna zwrócić 0 w przypadku przekazania pustego ciągu znaków");
}
}
catch (Exception e)
{
TestUtil.ShowProblem(testName, e.ToString());
}
}
/// <summary>
/// Reads the code trying to extract the AST from it.
/// </summary>
/// <param name="parser">The parser object used to read the code.</param>
/// <param name="prevData">Previously parsed result. This is used to chain results together.</param>
/// <returns>Returns an object that results from parsing the code.</returns>
public override object Read(SimpleParser parser, object prevData)
{
var prevExecutor = (INode)prevData;
parser.SkipSpaces();
if (prevExecutor == null)
{
var name = this.ReadName(parser);
// this is a direct method call in the root
var call = ReadMethodCall(parser, null, name);
if (call != null)
return call;
// this is a global property
if (!string.IsNullOrWhiteSpace(name))
return new PropertyGet { Name = name, Element = null };
// this is an array construct
if (parser.ReadChar('{'))
{
var values = parser.ReadList<ValueBuilder, INode>(ReadListSeparator);
if (values.Count > 0)
{
parser.SkipSpaces();
if (!parser.ReadChar('}'))
return new Exception("Unterminated array construct.");
return new ArrayConstruct { Values = values };
}
}
// this is a precedence operator
if (parser.ReadChar('('))
{
var value = parser.Read<ValueBuilder, INode>();
if (value == null)
return new Exception("Syntax error.");
parser.SkipSpaces();
if (!parser.ReadChar(')'))
return new Exception("Unterminated precedence construct.");
return value;
}
// this is a number literal
var number = parser.ReadWhileCharOrEof(char.IsNumber);
if (number.Length > 0)
return new NumberLiteral { Data = number };
// this is a string literal
if (parser.ReadChar('"'))
{
var strBuilder = new StringBuilder();
while (true)
{
strBuilder.Append(parser.ReadWhileCharOrEof(ch => ch != '\\' && ch != '"'));
if (parser.Eof)
return new InvalidOperationException("String literal not terminated.");
if (parser.ReadChar('\\'))
{
if (parser.ReadChar('0')) strBuilder.Append('\0');
else if (parser.ReadChar('n')) strBuilder.Append('\n');
else if (parser.ReadChar('r')) strBuilder.Append('\r');
else if (parser.ReadChar('\\')) strBuilder.Append('\\');
else if (parser.ReadChar('"')) strBuilder.Append('"');
else
return new InvalidOperationException("Escape sequence not recognized.");
}
if (parser.ReadChar('"'))
break;
}
return new StringLiteral { Data = strBuilder.ToString() };
}
}
else
{
if (parser.ReadChar('.'))
{
var name = this.ReadName(parser);
// this is a direct method call in the previous element
var call = ReadMethodCall(parser, prevExecutor, name);
if (call != null)
return call;
if (!string.IsNullOrWhiteSpace(name))
return new PropertyGet { Name = name, Element = prevExecutor };
}
// indexer property
if (parser.ReadChar('['))
{
var indexValues = parser.ReadList<ValueBuilder, INode>(ReadListSeparator);
if (indexValues.Count == 0)
return new Exception("Index is missing.");
parser.SkipSpaces();
if (!parser.ReadChar(']'))
return new Exception("Unterminated indexer.");
return new IndexerGet { Element = prevExecutor, Indexes = indexValues };
}
// this only happens when calling a delegate
// direct method calls never fall here
if (parser.ReadChar('('))
{
var paramValues = parser.ReadList<ValueBuilder, INode>(ReadListSeparator);
parser.SkipSpaces();
if (parser.ReadChar(')'))
return new Call { Element = prevExecutor, Name = "Invoke", Parameters = paramValues };
}
if (parser.ReadChar('?'))
{
var trueValue = parser.Read<ValueBuilder, INode>();
parser.SkipSpaces();
if (!parser.ReadChar(':'))
throw new Exception("Missing ':' for ternary operator a?b:c.");
parser.SkipSpaces();
var falseValue = parser.Read<ValueBuilder, INode>();
return new TernaryInlineIf { Condition = prevExecutor, TrueValue = trueValue, FalseValue = falseValue };
}
var binOp = parser.ReadAnyStringAlternative("==", "!=", ">", "<", ">=", "<=", "&&", "||");
if (binOp != null)
{
var valueB = parser.Read<ValueBuilder, INode>();
return new BinaryBoolOps { ValueA = prevExecutor, ValueB = valueB, Operator = binOp };
}
}
return null;
}
private static bool ReadListSeparator(SimpleParser parser)
{
parser.SkipSpaces();
return parser.ReadChar(',');
}
private static object ReadMethodCall(SimpleParser parser, object prevData, string name)
{
using (var la = parser.LookAround())
{
parser.SkipSpaces();
if (parser.ReadChar('('))
{
var prevExecutor = (INode)prevData;
var type = prevData == null ? parser.GlobalType : prevExecutor.Compile(parser.GlobalType);
var isMethodGroup = type.GetMethods().Any(m => m.Name == name);
if (isMethodGroup)
{
var paramValues = parser.ReadList<ValueBuilder, INode>(ReadListSeparator);
if (paramValues.Count == 1 && paramValues[0] == null)
paramValues.Clear();
parser.SkipSpaces();
if (parser.ReadChar(')'))
{
la.Success();
return new Call { Element = prevExecutor, Name = name, Parameters = paramValues };
}
}
}
return null;
}
}
private string ReadName(SimpleParser parser)
{
using (var la = parser.LookAround())
{
if (!parser.ReadChar('_')
&& !parser.ReadChar(UnicodeCategory.LowercaseLetter)
&& !parser.ReadChar(UnicodeCategory.UppercaseLetter))
return null;
parser.ReadWhileCharOrEof(IsIdentifierChar);
la.Success();
return la.Text;
}
}
