public static void Handle(string timestamp, string data, ParserState state)
{
data = data.Trim();
var match = Regexes.EntitiesChosenRegex.Match(data);
if(match.Success)
{
/*NOTE: in 10357, "Player" is bugged, it's treating a player ID
as an entity ID, resulting in "Player=GameEntity"
For our own sanity we keep the old playerID logic from the
previous builds, we'll change to "player" when it's fixed.*/
var rawEntity = match.Groups[1].Value;
var rawPlayer = match.Groups[2].Value;
var count = int.Parse(match.Groups[3].Value);
var entity = Helper.ParseEntity(rawEntity, state);
var player = Helper.ParseEntity(rawPlayer, state);
var cEntities = new ChosenEntities {Entity = entity, PlayerId = player, Count = count, Choices = new List<Choice>(), TimeStamp = timestamp};
state.CurrentGame.Data.Add(cEntities);
state.CurrentChosenEntites = cEntities;
return;
}
match = Regexes.EntitiesChosenEntitiesRegex.Match(data);
if(match.Success)
{
var index = int.Parse(match.Groups[1].Value);
var rawEntity = match.Groups[2].Value;
var entity = Helper.ParseEntity(rawEntity, state);
var choice = new Choice {Entity = entity, Index = index};
state.CurrentChosenEntites.Choices.Add(choice);
return;
}
Console.WriteLine("Warning: Unhandled chosen entities: " + data);
}
public override ParseTree Parse(Lexer lexer, ParserState state)
{
lexer.Whitespace(state.RuntimeState);
int start = lexer.Position;
state.RuntimeState.Runtime.ParseTrace.Enter(this, lexer.CurrentSource(), "[]");
char character = lexer.Peek();
if (character == '\0')
{
state.RuntimeState.Runtime.ParseTrace.No(this, lexer.SourceFrom(start), "End of source");
return ParseTree.No;
}
lexer.Read();
state.RuntimeState.Runtime.ParseTrace.Yes(this, lexer.SourceFrom(start), TextEscape.Quote(character));
if (state.BuildTextNodes)
return new ParseTree(Convert.ToString(character));
else
return ParseTree.Yes;
}
private void EndBlock()
{
AddParameter(parameter);
parameter = new Parameter();
PullParent();
parserState = ParserState.BeginParameterName;
}
public static void Handle(string timestamp, string data, ParserState state)
{
data = data.Trim();
var match = Regexes.SendChoicesChoicetypeRegex.Match(data);
if(match.Success)
{
var id = match.Groups[1].Value;
var rawType = match.Groups[2].Value;
var type = Helper.ParseEnum<ChoiceType>(rawType);
state.SendChoices = new SendChoices {Choices = new List<Choice>(), Entity = int.Parse(id), Type = type, TimeStamp = timestamp};
if(state.Node.Type == typeof(Game))
((Game)state.Node.Object).Data.Add(state.SendChoices);
else if(state.Node.Type == typeof(Action))
((Action)state.Node.Object).Data.Add(state.SendChoices);
else
throw new Exception("Invalid node " + state.Node.Type + " -- " + data);
return;
}
match = Regexes.SendChoicesEntitiesRegex.Match(data);
if(match.Success)
{
var index = Helper.ParseEntity(match.Groups[1].Value, state);
var id = Helper.ParseEntity(match.Groups[2].Value, state);
var choice = new Choice {Entity = id, Index = index};
state.SendChoices.Choices.Add(choice);
}
}
public override ParseTree Parse(Lexer lexer, ParserState state)
{
state.RuntimeState.Runtime.ParseTrace.Enter(this, lexer.CurrentSource(), "Pattern " + Type.Name);
int start = lexer.Position;
if (state.Excluded.Contains(this))
{
state.RuntimeState.Runtime.ParseTrace.No(this, lexer.CurrentSource(), "Excluded");
return ParseTree.No;
}
Precedence oldCurrentPrecedence = state.CurrentPrecedence;
if (Precedence.Overwrites(state.CurrentPrecedence))
state.CurrentPrecedence = Precedence;
ParseTree tree = ParseGraph.Parse(lexer, state);
state.CurrentPrecedence = oldCurrentPrecedence;
if (tree == ParseTree.No)
{
state.RuntimeState.Runtime.ParseTrace.No(this, lexer.SourceFrom(start));
return ParseTree.No;
}
state.RuntimeState.Runtime.ParseTrace.Yes(this, lexer.SourceFrom(start));
return tree;
}
// 3.1) scheme = ALPHA *( ALPHA / DIGIT / "+" / "-" / "." )
private static bool ParseScheme (ref ParserState state)
{
string part = state.remaining;
if (!IsAlpha (part [0]))
return part.Length > 0;
StringBuilder sb = new StringBuilder ();
sb.Append (part [0]);
int index;
for (index = 1; index < part.Length; index++ ) {
char ch = part [index];
if (ch != '.' && ch != '-' && ch != '+' && !IsAlpha (ch))
break;
sb.Append (ch);
}
if (index + 1 <= part.Length && part [index] == ':') {
state.elements.scheme = sb.ToString ();
state.remaining = part.Substring (index + 1);
}
return state.remaining.Length > 0;
}
private void Reset() {
Stack.Reset();
_currentState = Data.InitialState;
_currentLine = 0;
_tokenCount = 0;
_context.Errors.Clear();
}
public override ParseTree Parse(Lexer lexer, ParserState state)
{
lexer.Whitespace(state.RuntimeState);
int start = lexer.Position;
state.RuntimeState.Runtime.ParseTrace.Enter(this, lexer.CurrentSource(), range.ToString());
char character = lexer.Peek();
if (!range.Contains(character))
{
lexer.ErrorStrings[start].Add(range.ToString());
state.RuntimeState.Runtime.ParseTrace.No(this,
lexer.SourceFrom(start), TextEscape.Quote(character));
return ParseTree.No;
}
lexer.Read();
state.RuntimeState.Runtime.ParseTrace.Yes(this,
lexer.SourceFrom(start), TextEscape.Quote(character));
if (state.BuildTextNodes)
return new ParseTree(Convert.ToString(character));
else
return ParseTree.Yes;
}
public SongLineParser(string line)
{
m_line = line;
while (AreData && Char.IsWhiteSpace(CurCh)) m_index++;
InitState = State;
Read();
}
/// <summary>
/// Parses a stream chunking based on STX/ETX framing. Calls are re-entrant and hold state internally.
/// </summary>
/// <param name="bytes">A byte array of data to append</param>
private void Parse(ArraySegment<byte> bytes)
{
byte[] data = bytes.Array;
for (int i = bytes.Offset; i < bytes.Offset + bytes.Count; i++)
{
if ((data[i] > 3 || data[i] == 1) && _currentState == ParserState.AwaitingEtx)
{
if (_bufferIndex == _messageBuffer.Length)
{
var tmp = new byte[_messageBuffer.Length * 2];
Buffer.BlockCopy(_messageBuffer, 0, tmp, 0, _messageBuffer.Length);
_messageBuffer = tmp;
}
_messageBuffer[_bufferIndex] = data[i];
_bufferIndex++;
}
else if (data[i] == STX)
{
_currentState = ParserState.AwaitingEtx;
_bufferIndex = 0;
}
else if (data[i] == ETX && _currentState == ParserState.AwaitingEtx)
{
_currentState = ParserState.AwaitingStx;
if (_receivedHandler != null)
_receivedHandler(new ArraySegment<byte>(_messageBuffer, 0, _bufferIndex));
_bufferIndex = 0;
}
}
}
public static void Handle(string timestamp, string data, ParserState state)
{
data = data.Trim();
var match = Regexes.OptionsEntityRegex.Match(data);
if(match.Success)
{
var id = match.Groups[1].Value;
state.Options = new Options {Id = int.Parse(id), OptionList = new List<Option>(), TimeStamp = timestamp};
state.UpdateCurrentNode(typeof(Game));
if(state.Node.Type == typeof(Game))
((Game)state.Node.Object).Data.Add(state.Options);
else
throw new Exception("Invalid node " + state.Node.Type + " -- " + data);
return;
}
match = Regexes.OptionsOptionRegex.Match(data);
if(match.Success)
{
var index = match.Groups[1].Value;
var rawType = match.Groups[2].Value;
var rawEntity = match.Groups[3].Value;
var entity = Helper.ParseEntity(rawEntity, state);
var type = Helper.ParseEnum<OptionType>(rawType);
var option = new Option {Entity = entity, Index = int.Parse(index), Type = type, OptionItems = new List<OptionItem>()};
state.Options.OptionList.Add(option);
state.CurrentOption = option;
state.LastOption = option;
return;
}
match = Regexes.OptionsSuboptionRegex.Match(data);
if(match.Success)
{
var subOptionType = match.Groups[1].Value;
var index = match.Groups[2].Value;
var rawEntity = match.Groups[3].Value;
var entity = Helper.ParseEntity(rawEntity, state);
if(subOptionType == "subOption")
{
var subOption = new SubOption {Entity = entity, Index = int.Parse(index), Targets = new List<Target>()};
state.CurrentOption.OptionItems.Add(subOption);
state.LastOption = subOption;
}
else if(subOptionType == "target")
{
var target = new Target {Entity = entity, Index = int.Parse(index)};
var lastOption = state.LastOption as Option;
if(lastOption != null)
{
lastOption.OptionItems.Add(target);
return;
}
var lastSubOption = state.LastOption as SubOption;
if(lastSubOption != null)
lastSubOption.Targets.Add(target);
}
else
throw new Exception("Unexpected suboption type: " + subOptionType);
}
}
void Parse()
{
for (var i = 0; i < _data.Length; i++)
{
var c = _data[i];
if (c == '<' && State == ParserState.None)
{
State = ParserState.StartElement;
_elementNameStart = i + 1;
_elementNameEnd = null;
}
else if (State == ParserState.StartElement && CheckPrev(i, CommentStart))
{
State = ParserState.InsideComment;
}
else if (State == ParserState.InsideComment && CheckPrev(i, CommentEnd))
{
State = ParserState.None;
}
else if (State == ParserState.StartElement && CheckPrev(i, CdataStart))
{
State = ParserState.InsideCdata;
}
else if (State == ParserState.InsideCdata && CheckPrev(i, CdataEnd))
{
State = ParserState.None;
}
else if (State == ParserState.StartElement && char.IsWhiteSpace(c))
{
State = ParserState.InsideElement;
_attributeNameStart = i;
_elementNameEnd = i - 1;
}
else if ((State == ParserState.InsideElement || State == ParserState.StartElement) && c == '>')
{
State = ParserState.None;
}
else if (State == ParserState.InsideElement && (char.IsLetter(c) || c=='_' || c==':'))
{
State = ParserState.StartAttribute;
_attributeNameStart = i;
_attributeNameEnd = null;
}
else if (State == ParserState.StartAttribute && (c == '=' || char.IsWhiteSpace(c)))
{
State = ParserState.BeforeAttributeValue;
_attributeNameEnd = i - 1;
}
else if (State == ParserState.BeforeAttributeValue && c == '"')
{
State = ParserState.AttributeValue;
_attributeValueStart = i + 1;
}
else if (State == ParserState.AttributeValue && c == '"')
{
State = ParserState.InsideElement;
}
}
}
private void BeginBlock()
{
parameter.Value = new List<Parameter>();
AddParameter(parameter);
PushParent(parameter);
parameter = new Parameter();
parserState = ParserState.BeginParameterName;
}
public TransitionAction(ParserAction action, ParserState nextState)
: this(action)
{
if (action != ParserAction.Shift && action != ParserAction.Goto)
throw new Exception("Can only define the next state for the shift or goto actions.");
if (nextState == null)
throw new ArgumentNullException("nextState");
NextState = nextState;
}
public void TestParseErrorGetsReported()
{
// Create an instance of our language grammar and set handlers for its rules.
LanguageGrammar<Expression> g = new LanguageGrammar<Expression>();
g.DivideRule.Action = (e1, e2) => Expression.Divide(e1, e2);
g.DoubleLiteralRule.Action = (d) => Expression.Constant(d);
g.IntLiteralRule.Action = (i) => Expression.Constant(i);
g.StringLiteralRule.Action = (s) => Expression.Constant(s);
g.MinusRule.Action = (e1, e2) => Expression.Subtract(e1, e2);
g.ModRule.Action = (e1, e2) => Expression.Modulo(e1, e2);
g.MultiplyRule.Action = (e1, e2) => Expression.Multiply(e1, e2);
g.NegateRule.Action = (e) => Expression.Negate(e);
g.PlusRule.Action = (e1, e2) => Expression.Add(e1, e2);
g.VariableRefRule.SetStatefulAction<ParserState>((s, name) => s.GetVariable(name));
// Spin up a parser for our language.
// TODO: Package this up and simplify it.
var expressionHelper = new ExpressionHelper();
var classifierSession = new TerminalClassifierSession<char, ParserState, int>()
.AddSkipTerminal(new Terminal<char> { Name = "Whitespace", InitialState = RegexCharNFABuilder.RegexCompiler(@"\s+") })
.CurrentCharExprIs(x => x.CurrentChar())
.GetFromMarkExprIs(x => x.GetFromMarkedPos())
.HasCurrentCharExprIs(x => x.HasCurrentChar())
.MarkPosExprIs(x => x.MarkPos())
.MoveNextCharExprIs(x => x.MoveNextChar())
.GetLocationIs(x=>new ParseLocation {Line = 1, Column = x.GetPos()})
.ErrorCollectionIs(x=>x.Errors)
.UnmarkPosExprIs(x => x.UnmarkPos());
var parserGen = new ParserGenerator<char>(expressionHelper);
var parseTableBuilder = new LRParseTableBuilder();
var parseTable = parseTableBuilder.BuildParseTable(g);
var session = parserGen.NewSession<ParserState>()
.NonTerminalValueExprIs<object>(x => x.NonTerminalValue)
.TerminalValueExprIs<string>(x => x.TerminalStringValue)
.TerminalValueExprIs<int>(x => x.TerminalIntValue)
.TerminalValueExprIs<double>(x => x.TerminalDoubleValue)
.TerminalIs(x => x.Terminal)
.NonTerminalIs(x => x.NonTerminal)
.IncludeSymbols(true)
.DebugOutputIs(x => Debug.WriteLine(x))
.Generate("LanguageParser", parseTable, classifierSession);
// At this point, session is an Expression<ParserState,int> representing our parser.
// We can compile it into a delegate or a MethodBuilder. For the examples, we'll use a delegate.
var compiler = session.Compile();
// Create a parser state object and initialize it.
ParserState ps = new ParserState("x*y +* 2.0");
ps.SetParameters(
Expression.Parameter(typeof(double), "x"),
Expression.Parameter(typeof(double), "y"));
Assert.AreNotEqual(0, compiler(ps));
Assert.AreNotEqual(0, ps.Errors.Count);
Assert.Less(ps.Errors.First().ExpectedTerminalNames.Count, g.Terminals.Count);
}
public override ParseTree Parse(Lexer lexer, ParserState state)
{
int start = lexer.Position;
ParseTree oldLHS = state.LeftHandSide;
bool oldPrecedenceCanEqualCurrent = state.PrecedenceCanEqualCurrent;
ConcretePattern oldRecursionExclude = null;
ParseTree tree = ParseTree.Yes;
for (int n = 0; n < nodes.Count; n++)
{
ParseGraphNode node = nodes[n];
ParseTree nodeTree = node.Parse(lexer, state);
if (nodeTree == ParseTree.No)
{
state.PrecedenceCanEqualCurrent = oldPrecedenceCanEqualCurrent;
state.LeftHandSide = oldLHS;
state.RecursionExclude = oldRecursionExclude;
if (oldRecursionExclude != null)
state.Excluded.Add(oldRecursionExclude);
lexer.Position = start;
return ParseTree.No;
}
tree = tree.Extend(nodeTree);
if (n == 0)
{
if (state.RecursionExclude != null)
{
oldRecursionExclude = state.RecursionExclude;
state.Excluded.Remove(state.RecursionExclude);
state.RecursionExclude = null;
}
if (state.RecursionBehaviour == RecursionBehaviour.RightRecursive)
state.PrecedenceCanEqualCurrent = true;
else if (state.RecursionBehaviour == RecursionBehaviour.LeftRecursive)
state.LeftHandSide = null;
}
}
state.PrecedenceCanEqualCurrent = oldPrecedenceCanEqualCurrent;
state.LeftHandSide = oldLHS;
state.RecursionExclude = oldRecursionExclude;
if (oldRecursionExclude != null)
state.Excluded.Add(oldRecursionExclude);
return tree;
}
private string StateToDotString(ParserState state)
{
var result = new StringBuilder();
foreach (var item in state.Items)
{
result.Append(item);
result.Append("\\l");
}
return result.ToString();
}
public RPN_CalculatorEngine()
{
curr_state = ParserState.ParserState_Ok;
op_stack = new Stack<CalculatorToken>(32);
output_queue = new Stack<CalculatorToken>(32);
func_table_ = new FunctionTable();
input_string = null;
input_iter = 0;
input_end_marker = 0;
}
public void AddTransition(ParserState transitionFrom, GrammarSymbol symbol, ParserState transitionTo)
{
if(!_stateTransitions.ContainsKey(transitionFrom))
_stateTransitions.Add(transitionFrom, new Dictionary<GrammarSymbol,ParserState>());
if (_stateTransitions[transitionFrom].ContainsKey(symbol))
throw new Exception("State conflict. Trying to add a transition for a state when one already exists for the specified grammar symbol.");
_stateTransitions[transitionFrom][symbol] = transitionTo;
_states.Add(transitionFrom);
_states.Add(transitionTo);
}
public void Parse(CompilerContext context) {
_context = context;
_traceOn = _context.OptionIsSet(CompilerOptions.TraceParser);
_currentInput = null;
InputStack.Clear();
Stack.Clear();
_currentState = Data.InitialState; //set the current state to InitialState
Stack.Push(new ParseTreeNode(Data.InitialState));
//main loop
while (ExecuteAction()) {}
}//Parse
public ParseTree ParseUsingCompiler(Lexer lexer, ParserState state)
{
StateForCompiler stateForCompiler = new StateForCompiler();
stateForCompiler.BuildTextNodes = state.BuildTextNodes;
stateForCompiler.RecursionBehaviour = state.RecursionBehaviour;
stateForCompiler.LeftRecursiveAlts = state.LeftRecursiveAlts;
stateForCompiler.Whitespace = lexer.WhitespacePattern;
PatternTrampoline trampoline = GetTrampoline(state.RuntimeState.Runtime, stateForCompiler);
return trampoline.Implementation(lexer, state);
}
public TransitionAction this[ParserState state, GrammarSymbol symbol]
{
get
{
if(!_table.ContainsKey(state))
throw new InvalidOperationException("The given state is unknown for this transition table.");
var tableEntry = _table[state];
if (!tableEntry.ContainsKey(symbol))
throw new InvalidOperationException("There is no transition from the given state under the given input.");
return tableEntry[symbol];
}
}
public static bool TryParseComponents (string uri, UriKind kind, out UriElements elements, out string error)
{
uri = uri.Trim ();
ParserState state = new ParserState (uri, kind);
elements = state.elements;
error = null;
if (uri.Length == 0 && (kind == UriKind.Relative || kind == UriKind.RelativeOrAbsolute)){
state.elements.isAbsoluteUri = false;
return true;
}
if (uri.Length <= 1 && kind == UriKind.Absolute) {
error = "Absolute URI is too short";
return false;
}
bool ok = ParseFilePath (state) &&
ParseScheme (state);
var scheme = state.elements.scheme;
UriParser parser = null;
if (!string.IsNullOrEmpty (scheme)) {
parser = UriParser.GetParser (scheme);
if (parser != null && !(parser is DefaultUriParser))
return true;
}
ok = ok &&
ParseAuthority (state) &&
ParsePath (state) &&
ParseQuery (state) &&
ParseFragment (state);
if (string.IsNullOrEmpty (state.elements.host) &&
(scheme == Uri.UriSchemeHttp || scheme == Uri.UriSchemeGopher || scheme == Uri.UriSchemeNntp ||
scheme == Uri.UriSchemeHttps || scheme == Uri.UriSchemeFtp))
state.error = "Invalid URI: The Authority/Host could not be parsed.";
if (!string.IsNullOrEmpty (state.elements.host) &&
Uri.CheckHostName (state.elements.host) == UriHostNameType.Unknown)
state.error = "Invalid URI: The hostname could not be parsed.";
if (!string.IsNullOrEmpty (state.error)) {
elements = null;
error = state.error;
return false;
}
return true;
}
public override ParseTree Parse(Lexer lexer, ParserState state)
{
lexer.Whitespace(state.RuntimeState);
int start = lexer.Position;
state.RuntimeState.Runtime.ParseTrace.Enter(
this,
lexer.CurrentSource(),
TextEscape.Quote(text));
for (int n = 0; n < text.Length; n++)
{
char character = lexer.Peek(n);
if (character != text[n])
{
string stoppedString;
if (character == '\0')
stoppedString = "end";
else
stoppedString = TextEscape.Quote(character);
lexer.ErrorStrings[start + n].Add(TextEscape.Quote(text));
if (n > 0)
state.RuntimeState.Runtime.ParseTrace.No(
this,
lexer.SourceFrom(start),
TextEscape.Quote(lexer.Text.Substring(start, n))
+ "..." + stoppedString);
else
state.RuntimeState.Runtime.ParseTrace.No(
this,
lexer.SourceFrom(start),
stoppedString);
return ParseTree.No;
}
}
lexer.Skip(text.Length);
state.RuntimeState.Runtime.ParseTrace.Yes(this,
lexer.SourceFrom(start));
if (state.BuildTextNodes)
return new ParseTree(text);
else
return ParseTree.Yes;
}
public override ParseTree Parse(Lexer lexer, ParserState state)
{
ParseTree bodyTree = body.Parse(lexer, state);
if (bodyTree == ParseTree.No)
return ParseTree.No;
ParseTree labelledTree = new ParseTree();
labelledTree = labelledTree.ExtendFields(bodyTree);
labelledTree.Fields[label] = bodyTree.Value;
return labelledTree;
}
public override ParseTree Parse(Lexer lexer, ParserState state)
{
int start = lexer.Position;
state.RuntimeState.Runtime.ParseTrace.Enter(this, lexer.CurrentSource(), "options");
bool oldBuildTextNodes = state.BuildTextNodes;
Pattern oldWhitespace = lexer.WhitespacePattern;
Precedence oldCurrentPrecedence = state.CurrentPrecedence;
bool oldPrecedenceCanEqualCurrent = state.PrecedenceCanEqualCurrent;
if (buildTextNodes.HasValue)
state.BuildTextNodes = buildTextNodes.Value;
if (whitespace.HasValue)
{
lexer.Whitespace(state.RuntimeState);
lexer.WhitespacePattern = whitespace.Value;
}
if (exclude.HasValue)
state.Excluded.Add(exclude.Value);
if (dropPrecedence.HasValue && dropPrecedence.Value)
{
state.CurrentPrecedence = null;
state.PrecedenceCanEqualCurrent = false;
}
ParseTree tree = body.Parse(lexer, state);
state.BuildTextNodes = oldBuildTextNodes;
lexer.WhitespacePattern = oldWhitespace;
if (exclude.HasValue)
state.Excluded.Remove(exclude.Value);
state.CurrentPrecedence = oldCurrentPrecedence;
state.PrecedenceCanEqualCurrent = oldPrecedenceCanEqualCurrent;
if (tree == ParseTree.No)
{
state.RuntimeState.Runtime.ParseTrace.No(this, lexer.SourceFrom(start));
return ParseTree.No;
}
state.RuntimeState.Runtime.ParseTrace.Yes(this, lexer.SourceFrom(start));
return tree;
}
public static void Handle(string timestamp, string data, ParserState state)
{
data = data.Trim();
var match = Regexes.ChoicesChoiceRegex.Match(data);
if(match.Success)
{
var rawEntity = match.Groups[1].Value;
var playerId = match.Groups[2].Value;
var rawType = match.Groups[3].Value;
var min = match.Groups[4].Value;
var max = match.Groups[5].Value;
var entity = Helper.ParseEntity(rawEntity, state);
var type = Helper.ParseEnum<CHOICE_TYPE>(rawType);
state.Choices = new Choices
{
ChoiceList = new List<Choice>(),
Entity = entity,
Max = int.Parse(max),
Min = int.Parse(min),
PlayerId = int.Parse(playerId),
Type = type
};
if(state.Node.Type == typeof(Game))
((Game)state.Node.Object).Data.Add(state.Choices);
else if(state.Node.Type == typeof(Action))
((Action)state.Node.Object).Data.Add(state.Choices);
else
throw new Exception("Invalid node " + state.Node.Type + " -- " + data);
return;
}
match = Regexes.ChoicesSourceRegex.Match(data);
if(match.Success)
{
var rawEntity = match.Groups[1].Value;
var entity = Helper.ParseEntity(rawEntity, state);
state.Choices.Source = entity;
return;
}
match = Regexes.ChoicesEntitiesRegex.Match(data);
if(match.Success)
{
var index = match.Groups[1].Value;
var rawEntity = match.Groups[2].Value;
var entity = Helper.ParseEntity(rawEntity, state);
var choice = new Choice {Entity = entity, Index = int.Parse(index)};
state.Choices.ChoiceList.Add(choice);
}
}
private void ParseFirstHeader()
{
bool? atBoundary = Client.ReadBuffer.AtBoundary(_firstBoundary, ContentLength);
if (atBoundary.HasValue)
{
if (!atBoundary.Value)
throw new ProtocolException("Expected multipart content to start with the boundary");
_state = ParserState.ReadingHeaders;
ParseHeaders();
}
}
public override ParseTree Parse(Lexer lexer, ParserState state)
{
// todo traces
int start = lexer.Position;
ParseTree bodyTree = body.Parse(lexer, state);
if (bodyTree == ParseTree.No)
return ParseTree.Yes;
lexer.Position = start;
return ParseTree.No;
}
public static UriElements ParseComponents (string uri)
{
ParserState state = new ParserState (uri);
bool ok = ParseScheme (ref state);
if (ok)
ok = ParseAuthority (ref state);
if (ok)
ok = ParsePath (ref state);
if (ok)
ok = ParseQuery (ref state);
if (ok)
ParseFragment (ref state);
return state.elements;
}
private static bool ParseFilePath(ParserState state)
{
return(ParseWindowsFilePath(state) &&
ParseWindowsUNC(state) &&
ParseUnixFilePath(state));
}
// 3.1) scheme = ALPHA *( ALPHA / DIGIT / "+" / "-" / "." )
private static bool ParseScheme(ParserState state)
{
string part = state.remaining;
StringBuilder sb = new StringBuilder();
sb.Append(part [0]);
int index;
for (index = 1; index < part.Length; index++)
{
char ch = part [index];
if (ch != '.' && ch != '-' && ch != '+' && !IsAlpha(ch) && !Char.IsDigit(ch))
{
break;
}
sb.Append(ch);
}
if (index == 0 || index >= part.Length)
{
if (state.kind == UriKind.Absolute)
{
state.error = "Invalid URI: The format of the URI could not be determined.";
return(false);
}
state.elements.isAbsoluteUri = false;
return(state.remaining.Length > 0);
}
if (part [index] != ':')
{
if (state.kind == UriKind.Absolute)
{
state.error = "Invalid URI: The URI scheme is not valid.";
return(false);
}
state.elements.isAbsoluteUri = false;
return(state.remaining.Length > 0);
}
state.elements.scheme = sb.ToString().ToLowerInvariant();
state.remaining = part.Substring(index);
// Check scheme name characters as specified in RFC2396.
// Note: different checks in 1.x and 2.0
if (!Uri.CheckSchemeName(state.elements.scheme))
{
if (state.kind == UriKind.Absolute)
{
state.error = "Invalid URI: The URI scheme is not valid.";
return(false);
}
state.elements.isAbsoluteUri = false;
return(state.remaining.Length > 0);
}
return(ParseDelimiter(state));
}
// host = IP-literal / IPv4address / reg-name
private static bool ParseHost(ParserState state)
{
string part = state.remaining;
if (state.elements.scheme == Uri.UriSchemeFile && part.Length >= 2 &&
(part [0] == '\\' || part [0] == '/') && part [1] == part [0])
{
part = part.TrimStart(part [0]);
state.remaining = part;
}
if (!ParseWindowsFilePath(state))
{
return(false);
}
StringBuilder sb = new StringBuilder();
var tmpHost = "";
var possibleIpv6 = false;
int index;
for (index = 0; index < part.Length; index++)
{
char ch = part [index];
if (ch == '/' || ch == '#' || ch == '?')
{
break;
}
// Possible IPv6
if (string.IsNullOrEmpty(tmpHost) && ch == ':')
{
tmpHost = sb.ToString();
possibleIpv6 = true;
}
sb.Append(ch);
if (possibleIpv6 && ch == ']')
{
break;
}
}
if (possibleIpv6)
{
IPv6Address ipv6addr;
if (IPv6Address.TryParse(sb.ToString(), out ipv6addr))
{
#if NET_4_5
var ipStr = ipv6addr.ToString(false);
#else
var ipStr = ipv6addr.ToString(true);
#endif
//remove scope
ipStr = ipStr.Split('%') [0];
state.elements.host = "[" + ipStr + "]";
state.elements.scopeId = ipv6addr.ScopeId;
state.remaining = part.Substring(sb.Length);
return(state.remaining.Length > 0);
}
state.elements.host = tmpHost;
}
else
{
state.elements.host = sb.ToString();
}
state.elements.host = state.elements.host.ToLowerInvariant();
state.remaining = part.Substring(state.elements.host.Length);
if (state.elements.scheme == Uri.UriSchemeFile &&
state.elements.host != "")
{
// under Windows all file://host URI are considered UNC, which is not the case other MacOS (e.g. Silverlight)
#if BOOTSTRAP_BASIC
state.elements.isUnc = (Path.DirectorySeparatorChar == '\\');
#else
state.elements.isUnc = Environment.IsRunningOnWindows;
#endif
}
return(state.remaining.Length > 0);
}
public static bool TryParseComponents(string uri, UriKind kind, out UriElements elements, out string error)
{
uri = uri.Trim();
ParserState state = new ParserState(uri, kind);
elements = state.elements;
error = null;
if (uri.Length == 0 && (kind == UriKind.Relative || kind == UriKind.RelativeOrAbsolute))
{
state.elements.isAbsoluteUri = false;
return(true);
}
if (uri.Length <= 1 && kind == UriKind.Absolute)
{
error = "Absolute URI is too short";
return(false);
}
bool ok = ParseFilePath(state) &&
ParseScheme(state);
var scheme = state.elements.scheme;
UriParser parser = null;
if (!string.IsNullOrEmpty(scheme))
{
parser = UriParser.GetParser(scheme);
if (parser != null && !(parser is DefaultUriParser))
{
return(true);
}
}
ok = ok &&
ParseAuthority(state) &&
ParsePath(state) &&
ParseQuery(state) &&
ParseFragment(state);
if (string.IsNullOrEmpty(state.elements.host) &&
(scheme == Uri.UriSchemeHttp || scheme == Uri.UriSchemeGopher || scheme == Uri.UriSchemeNntp ||
scheme == Uri.UriSchemeHttps || scheme == Uri.UriSchemeFtp))
{
state.error = "Invalid URI: The Authority/Host could not be parsed.";
}
if (!string.IsNullOrEmpty(state.elements.host) &&
Uri.CheckHostName(state.elements.host) == UriHostNameType.Unknown)
{
state.error = "Invalid URI: The hostname could not be parsed.";
}
if (!string.IsNullOrEmpty(state.error))
{
elements = null;
error = state.error;
return(false);
}
return(true);
}
