public static Calc SwitchSignWhenNotWait(
this Calc calc)
{
return(PatternMatch.Match()
.With(() => calc.m_sign.Equals("+") &&
!calc.m_input.Equals(""),
() => calc.SwitchSignWhenPositive())
.Else(() => calc.SwitchSignWhenNegative())
.Do());
}
public static Calc AppendNum(
this Calc calc,
double numValue)
{
return(PatternMatch.Match()
.With(
() => numValue == Math.Round(numValue) &&
numValue >= 0,
() => calc.AppendNumWhenRound(numValue))
.Else(
() => calc.AppendNumWhenNotRound(numValue))
.Do());
}
public static Calc PrepareOperationDivide(
this Calc calc)
{
return(PatternMatch.Match()
.With(
() => calc.m_lastNum == null ||
calc.m_wait,
() => calc.PrepareOperationDivideLastNumNull())
.Else(
() => calc.PrepareOperationDivideLastNumNonNull())
.Do()
.ModifyCalcLastHitEquals(false));
}
public static Calc DoDeleteIfValid(
this Calc calc)
{
return(PatternMatch.Match()
.With(() => calc.m_decimal == true,
() => calc.DeleteWithDecimal())
.Else(() => calc.DeleteWithoutDecimal())
.Do()
.ModifyCalcInputWhen(
() => calc.m_input.Equals(".") ||
calc.m_input.Equals("-."),
".")
.ModifyCalcSignWhen(
() => calc.m_input.Equals(".") ||
calc.m_input.Equals("-."),
"+"));
}
public static Calc AppendNumWhenRound(
this Calc calc,
double numValue)
{
return(PatternMatch.Match()
.With(
() => calc.m_input.Equals(".") ||
calc.m_wait == true,
() => calc.AppendNumWhenRoundAndEmpty(
numValue))
.Else(
() => calc.AppendNumWhenRoundAndNotEmpty(
numValue))
.Do()
.ModifyCalcInputWhen(
() => calc.m_input.IndexOf("0", 0, 1) == 0 &&
calc.m_input.IndexOf(".") > 1,
calc.m_input.Remove(0, 1)));
}
public static Calc FunctionButton(
this Calc calc,
string str)
{
return(PatternMatch.Match()
.With(() => str == "sqrt",
() => calc.FunctionButtonSqrt())
.With(() => str == "percent",
() => calc.FunctionButtonPercent())
.With(() => str == "inverse",
() => calc.FunctionButtonInverse())
.With(() => str == "delete",
() => calc.FunctionButtonDelete())
.With(() => str == "switchSign",
() => calc.FunctionButtonSwitchSign())
.With(() => str == "decimal",
() => calc.FunctionButtonDecimal())
.Do());
}
public static Calc PrepareOperation(
this Calc calc,
string strOperator)
{
return(PatternMatch.Match()
.With(
() => strOperator == "add",
() => calc.PrepareOperationAdd())
.With(
() => strOperator == "subtract",
() => calc.PrepareOperationSubtract())
.With(
() => strOperator == "multiply",
() => calc.PrepareOperationMultiply())
.With(
() => strOperator == "divide",
() => calc.PrepareOperationDivide())
.Do());
}
