ExpBracket parseBracket()
{
//report("parseBracket");
ExpBracket bracket = new ExpBracket();
bracket.LeftBracketToken = tape.Current;
tape.MoveNext();
if (!tape.isBracketEnd(tape.Current.Kind))
{
while (true)
{
Exp expr = parseBinaryLogicExp();
if (expr != null)
{
bracket.InneExps.Add(expr);
}
if (tape.isBracketEnd(tape.CurrentKind))
{
break;
}
if (tape.CurrentKind != TokenKind.Comma)
{
tape.error("多余的表达式元素");
tape.MoveNext();
while (!(tape.isBracketEnd(tape.CurrentKind)) && tape.CurrentKind != TokenKind.Comma)
{
tape.MoveNext();
}
}
if (tape.CurrentKind == TokenKind.Comma)
{
tape.MoveNext();
}
}
}
if (tape.CurrentKind == TokenKind.RBS)
{
bracket.RightBracketToken = tape.Current;
tape.MoveNext();
}
else
{
tape.error("括号不匹配");
}
return(bracket);
}
