protected TimeSpanLiteralExpression timespan_literal()
{
TimeSpanLiteralExpression tsle;
IToken neg = null;
IToken value = null;
tsle = null;
try { // for error handling
{
switch ( LA(1) )
{
case SUBTRACT:
{
neg = LT(1);
match(SUBTRACT);
break;
}
case TIMESPAN:
{
break;
}
default:
{
throw new NoViableAltException(LT(1), getFilename());
}
}
}
value = LT(1);
match(TIMESPAN);
if (0==inputState.guessing)
{
string val = value.getText();
if (neg != null) val = neg.getText() + val;
tsle = new TimeSpanLiteralExpression(ToLexicalInfo(value), PrimitiveParser.ParseTimeSpan(value, val));
}
}
catch (RecognitionException ex)
{
if (0 == inputState.guessing)
{
reportError(ex, "timespan_literal");
recover(ex,tokenSet_41_);
}
else
{
throw ex;
}
}
return tsle;
}