public override bool TryCreate(List <string> lines, CalculationBuilder builder, out CalculationItem item)
{
string pattern = lines.First();
bool isMatch = Regex.IsMatch(pattern, REGEX_PATTERN);
if (!isMatch)
{
item = null;
return(false);
}
string left = RegexTools.GetValue(pattern, REGEX_PATTERN, "left");
string right = RegexTools.GetValue(pattern, REGEX_PATTERN, "right");
string sign = RegexTools.GetValue(pattern, REGEX_PATTERN, "sign");
If ifStatement = new If();
Condition condition = new Condition();
List <string> leftList = new List <string>();
leftList.Add(left);
condition.Left = (Equation)builder.Create(leftList);
List <string> rightList = new List <string>();
rightList.Add(right);
condition.Right = (Equation)builder.Create(rightList);
condition.TypeOfCondition = getType(sign);
ifStatement.Condition = condition;
builder.RemoveLines(lines, 1);
ifStatement.TrueBlock = (EquationBlock)builder.Create(lines);
string nextLine = lines.First();
if (nextLine == "else")
{
builder.RemoveLines(lines, 1);
ifStatement.FalseBlock = (EquationBlock)builder.Create(lines);
}
item = ifStatement;
return(true);
}
public override bool TryCreate(List <string> lines, CalculationBuilder builder, out CalculationItem item)
{
bool isMatch = (lines.First() == "{");
if (!isMatch)
{
item = null;
return(false);
}
EquationBlock block = new EquationBlock();
int level = 0;
builder.RemoveLines(lines, 1);
for ( ; ;)
{
CalculationItem eq = builder.Create(lines);
block.Equations.Add(eq);
string currentLine = lines.First();
if (currentLine == "}")
{
if (level == 0)
{
break;
}
else
{
level--;
}
}
}
builder.RemoveLines(lines, 1);
item = block;
return(true);
}
public override bool TryCreate(List <string> lines, CalculationBuilder builder, out CalculationItem item)
{
string pattern = lines.First();
bool isMatch = Regex.IsMatch(pattern, REGEX_PATTERN);
if (!isMatch)
{
FormulaItem supposedFormula = _formulaBuilder.Create(pattern);
if (supposedFormula is ValueItem)
{
Equation iEquation = new Equation();
iEquation.Value = (ValueItem)supposedFormula;
item = iEquation;
builder.RemoveLines(lines, 1);
return(true);
}
if (supposedFormula is SymbolItem)
{
Equation iEquation = new Equation();
iEquation.Symbol = (SymbolItem)supposedFormula;
item = iEquation;
builder.RemoveLines(lines, 1);
return(true);
}
item = null;
return(false);
}
string left = RegexTools.GetValue(pattern, REGEX_PATTERN, "left");
string right = RegexTools.GetValue(pattern, REGEX_PATTERN, "right");
FormulaItem symbol = _formulaBuilder.Create(left);
FormulaItem formula = _formulaBuilder.Create(right);
Equation equation = new Equation();
equation.Symbol = (SymbolItem)symbol;
if (formula is ValueItem)
{
equation.Value = (ValueItem)formula;
}
else
{
if (formula.IsSymbol)
{
equation.Symbolic = formula;
}
else
{
equation.Numbers = formula;
}
}
item = equation;
builder.RemoveLines(lines, 1);
return(true);
}