public override bool TryCreate(string pattern, FormulaBuilder builder, out FormulaItem item)
{
item = null;
string trimmed = pattern.Trim();
bool isMatchRound = Regex.IsMatch(trimmed, REGEX_ROUND);
bool isMatchSquared = Regex.IsMatch(trimmed, REGEX_SQUARED);
bool isAnyMatch = isMatchRound || isMatchSquared;
if (!isAnyMatch)
{
return(false);
}
item = new BracketItem();
item.Pattern = pattern;
string args = null;
if (isMatchRound)
{
args = RegexTools.GetValue(pattern, REGEX_ROUND, "args");
}
if (isMatchSquared)
{
args = RegexTools.GetValue(pattern, REGEX_SQUARED, "args");
}
FormulaItem argsItem = builder.Create(args);
(item as BracketItem).Arguments.Add(argsItem);
if (isMatchRound)
{
(item as BracketItem).TypeOfBracket = BracketShapeType.Round;
}
if (isMatchSquared)
{
(item as BracketItem).TypeOfBracket = BracketShapeType.Squared;
}
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)
{
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(string pattern, FormulaBuilder builder, out FormulaItem item)
{
item = null;
pattern = pattern.Trim();
string args = RegexTools.GetValue(pattern, REGEX, "args");
if (string.IsNullOrEmpty(args))
{
return(false);
}
item = new FunctionAbs();
item.Pattern = pattern;
FormulaItem arg = builder.Create(args);
(item as FunctionAbs).Arguments.Add(arg);
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);
}