private static Operator[] GetOperatorsFromLexeme(Operator[] ops, Lexeme lex)
{
AList<Operator> list = new AList<Operator>();
foreach (Operator op in ops)
{
if (lex.GetType() == Lexeme.OPERATOR && lex.GetValue().Equals(op.symbol))
{
list.AddItem(op);
}
}
return Sharpen.Collections.ToArray(list, new Operator[list.Count]);
}
private static Operator GetOperatorFromLexeme(Operator[] ops, Lexeme lex, bool isBinary
)
{
foreach (Operator op in ops)
{
if (lex.GetType() == Lexeme.OPERATOR && op.IsBinary() == isBinary && lex.GetValue
().Equals(op.GetSymbol()))
{
return op;
}
else
{
if (lex.GetType() == Lexeme.LPAREN && op.GetSymbol().Equals("("))
{
return op;
}
else
{
if (lex.GetType() == Lexeme.RPAREN && op.GetSymbol().Equals(")"))
{
return op;
}
else
{
if (lex.GetType() == Lexeme.WORD && op.GetSymbol().Equals(lex.GetValue()))
{
return op;
}
else
{
if (lex.GetType() == Lexeme.COMMA && op.GetSymbol().Equals(","))
{
return op;
}
}
}
}
}
}
throw new ExpressionParseException("Expression string cannot be tokenized at " +
lex.ToString() + " isBinary:" + isBinary, -1);
}