private IReadOnlyCollection <BooleanExpressionToken> ReduceParenTokens(IReadOnlyCollection <BooleanExpressionToken> tokens)
{
var cursor = new BooleanExpressionTokenReaderCursor {
Tokens = tokens.ToList()
};
List <BooleanExpressionToken> allTokens = new List <BooleanExpressionToken>();
while (cursor.Read(out var token))
{
if (token is OpenParenToken)
{
var innerTokens = ReadUntilClosingParen(cursor);
var parenExpression = new BooleanParenExpression {
InnerExpression = new BooleanExpressionTokenReader().CreateBooleanExpressionFromTokens(innerTokens)
};
var reduced = new ReducedToken {
ReducedExpression = parenExpression
};
allTokens.Add(reduced);
}
else
{
allTokens.Add(token);
}
}
return(allTokens);
}
private bool EvaluateParenExpression(BooleanParenExpression parenExpresion)
{
return(Evaluate(parenExpresion.InnerExpression));
}
