public CompileResult CompileExpression(
Drawing drawing,
string expressionText,
Predicate <IFigure> isFigureAllowed)
{
var result = new CompileResult();
if (expressionText.IsEmpty())
{
return(result);
}
var ast = Parse(expressionText, result);
if (!result.Errors.IsEmpty())
{
return(result);
}
var builder = new ExpressionTreeBuilder();
builder.SetContext(drawing, isFigureAllowed);
var expressionTree = builder.CreateExpression(ast, result);
if (expressionTree == null || !result.Errors.IsEmpty())
{
return(result);
}
var function = ExpressionTreeEvaluatorProvider.InterpretExpression(expressionTree);
result.Expression = function;
return(result);
}
public CompileResult CompileFunction(Drawing drawing, string functionText)
{
var result = new CompileResult();
if (string.IsNullOrEmpty(functionText))
{
return(result);
}
var ast = Parse(functionText, result);
if (!result.Errors.IsEmpty())
{
return(result);
}
var builder = new ExpressionTreeBuilder();
builder.SetContext(drawing, f => true);
var expressionTree = builder.CreateFunction(ast, result);
if (expressionTree == null || !result.Errors.IsEmpty())
{
return(result);
}
var function = ExpressionTreeEvaluatorProvider.InterpretFunction(expressionTree);
result.Function = function;
return(result);
}