protected override List<AphidExpression> MutateCore(AphidExpression expression, out bool hasChanged)
{
var loadExp = expression as LoadScriptExpression;
if (loadExp == null)
{
hasChanged = false;
return null;
}
hasChanged = true;
var scriptExp = loadExp.FileExpression as StringExpression;
if (scriptExp == null)
{
throw new AphidRuntimeException(
"Invalid load script operand '{0}'.",
loadExp.FileExpression);
}
var script = _loader.FindScriptFile(StringParser.Parse(scriptExp.Value));
if (!File.Exists(script))
{
throw new AphidRuntimeException("Could not find script '{0}'.", scriptExp.Value);
}
var tokens = new AphidLexer(File.ReadAllText(script)).GetTokens();
return new AphidParser(tokens) { UseImplicitReturns = UseImplicitReturns }.Parse();
}
public List<AphidExpression> Optimize(string script)
{
var tokens = new AphidLexer(script).GetTokens();
var ast = new AphidParser(tokens).Parse();
return Optimize(ast);
}
public static AphidToken GetToken(string text, int offset)
{
var lexer = new AphidLexer(text)
{
charIndex = offset - 1
};
var type = lexer.GetToken();
var index = lexer.lastIndex + 1;
var lexeme = text.Substring(index, lexer.charIndex - lexer.lastIndex);
return(new AphidToken(type, lexeme, index));
}
public void AppendCode(Paragraph paragraph, string code)
{
code = code.Replace("\r\n", "\n").Replace("\r", "\n") + " ";
var tokens = new AphidLexer(code).GetAllTokens();
foreach (var t in tokens)
{
var run = new Run(t.Lexeme)
{
Foreground = new SolidColorBrush(GetColor(t.TokenType))
};
paragraph.Inlines.Add(run);
}
Document.Blocks.Add(paragraph);
ScrollToEnd();
}
public static int[][] GetBraces(string text, int line, int col)
{
var index = Components.Aphid.VSPackage.TokenHelper.GetIndex(text, line, col);
var str = text.Substring(index);
var tokens = new AphidLexer(str).GetTokens();
var startBrace = tokens[0].TokenType;
AphidTokenType[] braces;
switch (tokens[0].TokenType)
{
case AphidTokenType.LeftBrace:
case AphidTokenType.RightBrace:
braces = new[] { AphidTokenType.LeftBrace, AphidTokenType.RightBrace };
break;
case AphidTokenType.LeftParenthesis:
case AphidTokenType.RightParenthesis:
braces = new[] { AphidTokenType.LeftParenthesis, AphidTokenType.RightParenthesis };
break;
case AphidTokenType.LeftBracket:
case AphidTokenType.RightBracket:
braces = new[] { AphidTokenType.LeftBracket, AphidTokenType.RightBracket };
break;
default:
throw new InvalidOperationException();
}
var depth = 1;
if (startBrace == braces[0])
{
var rightBraceIndex = -1;
for (int i = 1; i < tokens.Count; i++)
{
if (tokens[i].TokenType == braces[0])
{
depth++;
}
else if (tokens[i].TokenType == braces[1])
{
depth--;
}
if (depth == 0)
{
rightBraceIndex = index + tokens[i].Index;
break;
}
}
if (rightBraceIndex != -1)
{
var rightLineCol = Components.Aphid.VSPackage.TokenHelper.GetLineCol(text, rightBraceIndex);
return new[]
{
new[] { line, col },
new[] { rightLineCol.Item1, rightLineCol.Item2 },
};
}
}
else if (startBrace == braces[1])
{
depth = -1;
var leftBraceIndex = -1;
str = text.Remove(index);
tokens = new AphidLexer(str).GetTokens();
for (int i = tokens.Count - 1; i >= 0; i--)
{
if (tokens[i].TokenType == braces[0])
{
depth++;
}
else if (tokens[i].TokenType == braces[1])
{
depth--;
}
if (depth == 0)
{
leftBraceIndex = tokens[i].Index;
break;
}
}
if (leftBraceIndex != -1)
{
var leftLineCol = Components.Aphid.VSPackage.TokenHelper.GetLineCol(text, leftBraceIndex);
return new[]
{
new[] { leftLineCol.Item1, leftLineCol.Item2 },
new[] { line, col },
};
}
}
else
{
throw new InvalidOperationException();
}
return null;
}
public override AuthoringScope ParseSource(ParseRequest req)
{
Debug.WriteLine("Parse reason: {0}", req.Reason);
var scope = new AphidAuthoringScope();
//scope.Identifiers = GetTokens(req.Text)
// .Where(x => x.TokenType == AphidTokenType.Identifier)
// .Select(x => x.Lexeme)
// .Distinct()
// .ToArray();
switch (req.Reason)
{
case ParseReason.QuickInfo:
break;
case ParseReason.MemberSelect:
break;
case ParseReason.DisplayMemberList:
break;
case ParseReason.CompleteWord:
break;
case ParseReason.MatchBraces:
case ParseReason.MemberSelectAndHighlightBraces:
case ParseReason.HighlightBraces:
var braces = TokenHelper.GetBraces(
req.Text,
req.Line,
req.Col - 1);
if (braces != null)
{
req.Sink.MatchPair(CreateSpan(braces[0][0], braces[0][1]), CreateSpan(braces[1][0], braces[1][1]), 1);
}
var index = TokenHelper.GetIndex(req.Text, req.Line, req.Col - 1);
var str = req.Text.Substring(index);
var tokens = new AphidLexer(str).GetAllTokens();
var depth = 1;
var rightBraceIndex = -1;
for (int i = 1; i < tokens.Count; i++)
{
switch (tokens[i].TokenType)
{
case AphidTokenType.LeftBrace:
depth++;
break;
case AphidTokenType.RightBrace:
depth--;
break;
}
if (depth == 0)
{
rightBraceIndex = index + tokens[i].Index;
break;
}
}
if (rightBraceIndex != -1)
{
var rightLineCol = TokenHelper.GetLineCol(req.Text, rightBraceIndex);
req.Sink.MatchPair(CreateSpan(req.Line, req.Col - 1), CreateSpan(rightLineCol.Item1, rightLineCol.Item2), 1);
}
break;
case ParseReason.Check:
CheckParseRequest(req);
break;
default:
break;
}
return scope;
}
private void CheckParseRequest(ParseRequest req)
{
try
{
var lexer = new AphidLexer(req.Text);
var parser = new AphidParser(lexer.GetTokens());
parser.Parse();
}
catch (AphidParserException e)
{
var lineCol = TokenHelper.GetLineCol(req.Text, e.UnexpectedToken.Index);
var span = new TextSpan()
{
iStartLine = lineCol.Item1,
iEndLine = lineCol.Item1,
iStartIndex = lineCol.Item2,
iEndIndex = lineCol.Item2 + (e.UnexpectedToken.Lexeme != null ? e.UnexpectedToken.Lexeme.Length : 0)
};
var msg = string.Format(
"Unexpected {0}: {1}, expected {2}",
e.UnexpectedToken.TokenType.ToString(),
e.UnexpectedToken.Lexeme,
e.ExpectedToken);
req.Sink.AddError(req.FileName, msg, span, Severity.Error);
}
}
protected override void OnRender(DrawingContext drawingContext)
{
DebugHelper.Trace();
if (glyphFace == null)
{
return;
}
else if (string.IsNullOrEmpty(_text))
{
_currentColumn = 0;
_currentRow = 0;
MoveCaretToCurrentCell();
SetDefaultSize();
CreateDocument(new List<AphidToken>());
return;
}
var lexer = new AphidLexer(_text);
CreateDocument(lexer.GetAllTokens());
double greatestX = 0, greatestY = 0;
for (int y = 0; y < _document.Count; y++)
{
for (int x = 0; x < _document[y].Count; x++)
{
var cell = _document[y][x];
if (cell.Char == '\n')
{
continue;
}
var glyph = BuildGlyphRun(x, y, cell.Char);
drawingContext.DrawGlyphRun(
new SolidColorBrush(GetColor(cell.Type)),
glyph);
var x2 = glyph.BaselineOrigin.X + _cellWidth;
if (x2 > greatestX)
{
greatestX = x2;
}
if (glyph.BaselineOrigin.Y > greatestY)
{
//greatestY = glyph.BaselineOrigin.Y + 20;
greatestY = glyph.BaselineOrigin.Y;
}
}
}
var caretY = Canvas.GetTop(_caret) + _caret.Height;
if (caretY > greatestY)
{
greatestY = caretY;
}
Width = greatestX;
Height = greatestY;
}
private void ExecuteStatements()
{
ResetInterpreter();
InvokeDispatcher(() =>
{
_codeViewer.Document.Blocks.Clear();
_codeViewer.AppendOutput("Running script...");
});
if (string.IsNullOrEmpty(Code))
{
return;
}
var tokens = new AphidLexer(Code).GetTokens();
List<Components.Aphid.Parser.AphidExpression> ast = null;
try
{
ast = new AphidParser(tokens).Parse();
}
catch (AphidParserException ex)
{
InvokeDispatcher(() =>
_codeViewer.AppendParserException(Code, ex));
return;
}
try
{
_interpreter.Interpret(ast);
}
catch (AphidRuntimeException ex)
{
InvokeDispatcher(() =>
_codeViewer.AppendException(Code, "Runtime error", ex));
return;
}
catch (AphidParserException ex)
{
InvokeDispatcher(() =>
_codeViewer.AppendParserException(Code, ex));
return;
}
catch (Exception ex)
{
InvokeDispatcher(() =>
_codeViewer.AppendException(Code, "Internal error", ex));
}
UpdateVariables();
ExecuteWatchExpressions();
InvokeDispatcher(() =>
{
_codeViewer.AppendOutput("Done");
_codeViewer.ScrollToEnd();
});
}
private void ExecuteExpression()
{
if (string.IsNullOrEmpty(Code))
{
return;
}
AddHistoricalCode();
var tokens = new AphidLexer(Code + " ").GetTokens();
if (!tokens.Any(x => x.TokenType == AphidTokenType.EndOfStatement))
{
tokens.Add(new AphidToken(AphidTokenType.EndOfStatement, "", 0));
}
List<Components.Aphid.Parser.AphidExpression> ast = null;
try
{
ast = new AphidParser(tokens).Parse();
}
catch (AphidParserException ex)
{
InvokeDispatcher(() => _codeViewer.AppendParserException(Code, ex));
return;
}
if (ast.Count != 1)
{
throw new InvalidOperationException();
}
var exp = ast.First();
var unary = exp as UnaryOperatorExpression;
if (unary == null ||
unary.Operator != AphidTokenType.retKeyword)
{
ast.Clear();
ast.Add(new UnaryOperatorExpression(
AphidTokenType.retKeyword,
exp));
}
try
{
_interpreter.Interpret(ast);
}
catch (AphidRuntimeException ex)
{
InvokeDispatcher(() =>
_codeViewer.AppendException(Code, "Runtime error", ex));
return;
}
catch (AphidParserException ex)
{
InvokeDispatcher(() =>
_codeViewer.AppendParserException(Code, ex));
return;
}
var retVal = _interpreter.GetReturnValue();
var serializer = new AphidSerializer() { IgnoreFunctions = false };
InvokeDispatcher(() =>
_codeViewer.AppendOutput(Code, serializer.Serialize(retVal)));
UpdateVariables();
ExecuteWatchExpressions();
}
public void Interpret(string code)
{
var lexer = new AphidLexer(code);
var parser = new AphidParser(lexer.GetTokens());
var ast = parser.Parse();
Interpret(ast);
}
public static int[][] GetBraces(string text, int line, int col)
{
var index = GetIndex(text, line, col);
var str = text.Substring(index);
var tokens = new AphidLexer(str).GetTokens();
var startBrace = tokens[0].TokenType;
AphidTokenType[] braces;
#pragma warning disable ERP031 // Some enum cases are not covered by switch statement.
switch (tokens[0].TokenType)
#pragma warning restore ERP031 // Some enum cases are not covered by switch statement.
{
case AphidTokenType.LeftBrace:
case AphidTokenType.RightBrace:
braces = new[] { AphidTokenType.LeftBrace, AphidTokenType.RightBrace };
break;
case AphidTokenType.LeftParenthesis:
case AphidTokenType.RightParenthesis:
braces = new[] { AphidTokenType.LeftParenthesis, AphidTokenType.RightParenthesis };
break;
case AphidTokenType.LeftBracket:
case AphidTokenType.RightBracket:
braces = new[] { AphidTokenType.LeftBracket, AphidTokenType.RightBracket };
break;
default:
throw new InvalidOperationException();
}
var depth = 1;
if (startBrace == braces[0])
{
var rightBraceIndex = -1;
for (var i = 1; i < tokens.Count; i++)
{
if (tokens[i].TokenType == braces[0])
{
depth++;
}
else if (tokens[i].TokenType == braces[1])
{
depth--;
}
if (depth == 0)
{
rightBraceIndex = index + tokens[i].Index;
break;
}
}
if (rightBraceIndex != -1)
{
var rightLineCol = GetIndexPosition(text, rightBraceIndex);
return(new[]
{
new[] { line, col },
new[] { rightLineCol.Item1, rightLineCol.Item2 }
});
}
}
else if (startBrace == braces[1])
{
depth = -1;
var leftBraceIndex = -1;
str = text.Remove(index);
tokens = new AphidLexer(str).GetTokens();
for (var i = tokens.Count - 1; i >= 0; i--)
{
if (tokens[i].TokenType == braces[0])
{
depth++;
}
else if (tokens[i].TokenType == braces[1])
{
depth--;
}
if (depth == 0)
{
leftBraceIndex = tokens[i].Index;
break;
}
}
if (leftBraceIndex != -1)
{
var leftLineCol = GetIndexPosition(text, leftBraceIndex);
return(new[]
{
new[] { leftLineCol.Item1, leftLineCol.Item2 },
new[] { line, col }
});
}
}
else
{
throw new InvalidOperationException();
}
return(null);
}