public static bool CanBeElement(string testString, out FormulaElement element)
{
bool canBe = false;
canBe |= Bracket.CanBeBracket(testString, out Bracket bracket);
if (bracket is object)
{
element = bracket;
return(true);
}
canBe |= Operation.CanBeOperation(testString, out Operation op);
if (op is object)
{
element = op;
return(true);
}
canBe |= Variable.CanBeVariable(testString, out Variable variable);
if (variable is object)
{
element = variable;
return(true);
}
element = null;
return(canBe);
}
public static bool IsPair(Bracket first, Bracket second)
{
foreach (var pair in _instances)
{
if ((pair[0] == first && pair[1] == second) ||
(pair[0] == second && pair[1] == first))
{
return(true);
}
}
return(false);
}
public static bool CanBeBracket(string testString, out Bracket bracket)
{
bool canBe = false;
foreach (var pair in _instances)
{
foreach (Bracket b in pair)
{
canBe |= b.Name.StartsWith(testString);
if (b.Name.Equals(testString))
{
bracket = b;
return(true);
}
}
}
bracket = null;
return(canBe);
}
public static bool CanBeElement(string testString)
{
return(Bracket.CanBeBracket(testString) || Operation.CanBeOperation(testString) ||
Variable.CanBeVariable(testString));
}