/// <summary>
/// Evaluates the expression
/// </summary>
/// <returns>The result of evaluation</returns>
public double Evaluate()
{
//Create a clone of expression because we don't want to mess with it
CloneableStack <Symbol> expr = expression.Clone();
Stack <Symbol> tempStack = new Stack <Symbol>();
double[] values;
while (expr.Count() > 0)
{
if (!expr.Peek().isOperator)
{
tempStack.Push(expr.Pop());
}
else
{
//Pop values, tempStack should only be 0 op symbols
values = new double[expr.Peek().nOps];
for (int i = 0; i < values.Length; i++)
{
values[i] = tempStack.Pop().eval(null);
}
tempStack.Push(new Symbol(expr.Pop().eval(values)));
}
}
return(tempStack.Pop().eval(null));
}
/// <summary>
/// Creates a new AlIndentEngine instance from the given prototype.
/// </summary>
/// <param name="prototype">
/// An AlIndentEngine instance.
/// </param>
public AlIndentEngine(AlIndentEngine prototype)
{
this.formattingOptions = prototype.formattingOptions;
this.textEditorOptions = prototype.textEditorOptions;
this.document = prototype.document;
this.newLineChar = prototype.newLineChar;
this.currentState = prototype.currentState.Clone(this);
this.conditionalSymbols = new HashSet <string>(prototype.conditionalSymbols);
this.customConditionalSymbols = new HashSet <string>(prototype.customConditionalSymbols);
this.wordToken = new StringBuilder(prototype.wordToken.ToString());
this.previousKeyword = string.Copy(prototype.previousKeyword);
this.offset = prototype.offset;
this.line = prototype.line;
this.column = prototype.column;
this.isLineStart = prototype.isLineStart;
this.isLineStartBeforeWordToken = prototype.isLineStartBeforeWordToken;
this.currentChar = prototype.currentChar;
this.previousChar = prototype.previousChar;
this.previousNewline = prototype.previousNewline;
this.currentIndent = new StringBuilder(prototype.CurrentIndent.ToString());
this.lineBeganInsideMultiLineComment = prototype.lineBeganInsideMultiLineComment;
this.lineBeganInsideVerbatimString = prototype.lineBeganInsideVerbatimString;
this.ifDirectiveEvalResults = prototype.ifDirectiveEvalResults.Clone();
this.ifDirectiveIndents = prototype.ifDirectiveIndents.Clone();
this.EnableCustomIndentLevels = prototype.EnableCustomIndentLevels;
}
Indent(Indent engine)
{
this.indentStack = engine.indentStack.Clone();
this.options = engine.options;
this.curIndent = engine.curIndent;
this.extraSpaces = engine.extraSpaces;
this.indentString = engine.indentString;
}
Indent(Indent engine)
{
this.indentStack = engine.indentStack.Clone();
this.options = engine.options;
this.curIndent = engine.curIndent;
this.extraSpaces = engine.extraSpaces;
this.indentString = engine.indentString;
}
// Span preprocessorSpan;
// Rule preprocessorRule;
public CSharpSpanParser(CSharpSyntaxMode mode, CloneableStack <Span> spanStack) : base(mode, spanStack)
{
// foreach (Span span in mode.Spans) {
// if (span.Rule == "text.preprocessor") {
// preprocessorSpan = span;
// preprocessorRule = GetRule (span);
// }
// }
}
// Span preprocessorSpan;
// Rule preprocessorRule;
public CSharpSpanParser(Mono.TextEditor.Document doc, SyntaxMode mode, CloneableStack <Span> spanStack) : base(doc, mode, spanStack)
{
// foreach (Span span in mode.Spans) {
// if (span.Rule == "text.preprocessor") {
// preprocessorSpan = span;
// preprocessorRule = GetRule (span);
// }
// }
}
/// <summary>
/// Converts an infix expression represented an array of strings to a
/// corresponding RPN expression as a stack.
/// </summary>
/// <param name="inputTokens"></param>
/// <returns></returns>
private CloneableStack <Symbol> InfixToRPN(string[] inputTokens)
{
//ArrayList outList = new ArrayList();
CloneableStack <Symbol> result = new CloneableStack <Symbol>(0);
Stack <string> stack = new Stack <string>();
//for all the input tokens read the next token
foreach (string token in inputTokens)
{
if (IsOperator(token))
{
//If token is an operator
while (stack.Count != 0 && IsOperator(stack.Peek()))
{
if ((IsAssociative(token, LEFT_ASSOC) && CmpPrecedence(token, stack.Peek()) <= 0) ||
(IsAssociative(token, RIGHT_ASSOC) && CmpPrecedence(token, stack.Peek()) < 0))
{
result.Push(ToSymbol(stack.Pop()));
continue;
}
break;
}
//Push the new operator on the stack
stack.Push(token);
}
else if (token.Equals("("))
{
stack.Push(token);
}
else if (token.Equals(")"))
{
while (stack.Count != 0 && !stack.Peek().Equals("("))
{
result.Push(ToSymbol(stack.Pop()));
}
stack.Pop();
}
else
{
result.Push(ToSymbol(token));
}
}
while (stack.Count != 0)
{
result.Push(ToSymbol(stack.Pop()));
}
CloneableStack <Symbol> actualResult = new CloneableStack <Symbol>(result.Count());
while (result.Count() > 0)
{
actualResult.Push(result.Pop());
}
return(actualResult);
}
public override SpanParser CreateSpanParser(Mono.TextEditor.Document doc, SyntaxMode mode, LineSegment line, CloneableStack <Span> spanStack)
{
return(new CSharpSpanParser(doc, mode, spanStack ?? line.StartSpan.Clone()));
}
public override SpanParser CreateSpanParser(Mono.TextEditor.DocumentLine line, CloneableStack<Span> spanStack)
{
return new GherkinSpanParser (this, spanStack ?? line.StartSpan.Clone ());
}
protected LineDescriptor(DocumentLine line, int offset, int length)
{
this.Offset = offset;
this.Length = length;
this.Spans = line.StartSpan;
}
public DSpanParser(DSyntaxMode syn, DocumentLine line, CloneableStack<Span> spanStack)
: base(syn, spanStack)
{
}
public override SpanParser CreateSpanParser(DocumentLine line, CloneableStack <Span> spanStack)
{
return(new CSharpSpanParser(this, spanStack ?? line.StartSpan.Clone()));
}
public ASPNetSpanParser(SyntaxMode mode, CloneableStack <Span> spanStack) : base(mode, spanStack)
{
}
public virtual SpanParser CreateSpanParser (DocumentLine line, CloneableStack<Span> spanStack)
{
return new SpanParser (this, spanStack ?? line.StartSpan.Clone ());
}
public void SetInfix(string infix)
{
this.infix = infix;
expression = InfixToRPN(Parse(infix));
}
public ExpressionD(string infix)
{
this.infix = infix;
expression = InfixToRPN(Parse(infix));
}
protected LineDescriptor(DocumentLine line, int offset, int length)
{
this.Offset = offset;
this.Length = length;
this.Spans = line.StartSpan;
}
public static void ScanSpans (Document doc, SyntaxMode mode, Rule rule, CloneableStack<Span> spanStack, int start, int end)
{
SyntaxMode.SpanParser parser = mode.CreateSpanParser (doc, mode, null, spanStack);
parser.ParseSpans (start, end - start);
}
public JaySpanParser (Document doc, SyntaxMode mode, CloneableStack<Span> spanStack) : base (doc, mode, spanStack)
{
}
public override SpanParser CreateSpanParser(Mono.TextEditor.DocumentLine line, CloneableStack <Span> spanStack)
{
return(syntaxMode.CreateSpanParser(line, spanStack));
}
// Span preprocessorSpan;
// Rule preprocessorRule;
public CSharpSpanParser (Mono.TextEditor.Document doc, SyntaxMode mode, CloneableStack<Span> spanStack) : base (doc, mode, spanStack)
{
// foreach (Span span in mode.Spans) {
// if (span.Rule == "text.preprocessor") {
// preprocessorSpan = span;
// preprocessorRule = GetRule (span);
// }
// }
}
public DSpanParser(DSyntaxMode syn, DocumentLine line, CloneableStack <Span> spanStack)
: base(syn, spanStack)
{
}
public ASPNetSpanParser(Mono.TextEditor.Document doc, SyntaxMode mode, CloneableStack <Span> spanStack) : base(doc, mode, spanStack)
{
}
public override SpanParser CreateSpanParser (Mono.TextEditor.Document doc, SyntaxMode mode, LineSegment line, CloneableStack<Span> spanStack)
{
return new CSharpSpanParser (doc, mode, spanStack ?? line.StartSpan.Clone ());
}
public override SpanParser CreateSpanParser (DocumentLine line, CloneableStack<Span> spanStack)
{
return new JaySpanParser (this, spanStack ?? line.StartSpan.Clone ());
}
public virtual SpanParser CreateSpanParser (Document doc, SyntaxMode mode, LineSegment line, CloneableStack<Span> spanStack)
{
return new SpanParser (doc, mode, spanStack ?? line.StartSpan.Clone ());
}
public static void ScanSpans (TextDocument doc, SyntaxMode mode, Rule rule, CloneableStack<Span> spanStack, int start, int end)
{
if (mode == null)
return;
SyntaxMode.SpanParser parser = mode.CreateSpanParser (null, spanStack);
parser.ParseSpans (start, end - start);
}
public JaySpanParser (SyntaxMode mode, CloneableStack<Span> spanStack) : base (mode, spanStack)
{
}
public override SpanParser CreateSpanParser (LineSegment line, CloneableStack<Span> spanStack)
{
return new ASPNetSpanParser (this, spanStack ?? line.StartSpan.Clone ());
}
public override SpanParser CreateSpanParser(Mono.TextEditor.DocumentLine line, CloneableStack <Span> spanStack)
{
return(new GherkinSpanParser(this, spanStack ?? line.StartSpan.Clone()));
}
public GherkinSpanParser(SyntaxMode mode, CloneableStack <Span> spanStack) : base(mode, spanStack)
{
}
public SpanParser (Document doc, SyntaxMode mode, CloneableStack<Span> spanStack)
{
if (doc == null)
throw new ArgumentNullException ("doc");
this.doc = doc;
this.mode = mode;
this.SpanStack = spanStack;
this.CurRule = mode;
this.ruleStack = CreateRuleStack ();
this.CurRule = ruleStack.Peek ();
this.CurSpan = spanStack.Count > 0 ? spanStack.Peek () : null;
FoundSpanBegin = DefaultFoundSpanBegin;
FoundSpanEnd = DefaultFoundSpanEnd;
FoundSpanExit = DefaultFoundSpanEnd;
ParseChar = delegate (ref int i, char ch) {};
}
public SpanParser (SyntaxMode mode, CloneableStack<Span> spanStack)
{
if (mode == null)
throw new ArgumentNullException ("mode");
this.doc = mode.Document;
if (this.doc == null)
throw new ArgumentException ("Syntax mode isn't bound to any document.", "mode");
this.mode = mode;
this.SpanStack = spanStack;
this.CurRule = mode;
this.ruleStack = CreateRuleStack ();
this.CurRule = ruleStack.Peek ();
this.CurSpan = spanStack.Count > 0 ? spanStack.Peek () : null;
FoundSpanBegin = DefaultFoundSpanBegin;
FoundSpanEnd = DefaultFoundSpanEnd;
FoundSpanExit = DefaultFoundSpanEnd;
ParseChar = delegate (ref int i, char ch) {};
}
/// <summary>
/// Creates a new CSharpIndentEngine instance from the given prototype.
/// </summary>
/// <param name="prototype">
/// An CSharpIndentEngine instance.
/// </param>
public CSharpIndentEngine(CSharpIndentEngine prototype)
{
this.formattingOptions = prototype.formattingOptions;
this.textEditorOptions = prototype.textEditorOptions;
this.document = prototype.document;
this.newLineChar = prototype.newLineChar;
this.currentState = prototype.currentState.Clone(this);
this.conditionalSymbols = new HashSet<string>(prototype.conditionalSymbols);
this.customConditionalSymbols = new HashSet<string>(prototype.customConditionalSymbols);
this.wordToken = new StringBuilder(prototype.wordToken.ToString());
this.previousKeyword = string.Copy(prototype.previousKeyword);
this.offset = prototype.offset;
this.line = prototype.line;
this.column = prototype.column;
this.isLineStart = prototype.isLineStart;
this.isLineStartBeforeWordToken = prototype.isLineStartBeforeWordToken;
this.currentChar = prototype.currentChar;
this.previousChar = prototype.previousChar;
this.previousNewline = prototype.previousNewline;
this.currentIndent = new StringBuilder(prototype.CurrentIndent.ToString());
this.lineBeganInsideMultiLineComment = prototype.lineBeganInsideMultiLineComment;
this.lineBeganInsideVerbatimString = prototype.lineBeganInsideVerbatimString;
this.ifDirectiveEvalResults = prototype.ifDirectiveEvalResults.Clone();
this.ifDirectiveIndents = prototype.ifDirectiveIndents.Clone();
this.EnableCustomIndentLevels = prototype.EnableCustomIndentLevels;
}
public ASPNetSpanParser (Mono.TextEditor.Document doc, SyntaxMode mode, CloneableStack<Span> spanStack) : base (doc, mode, spanStack)
{}
