private void ParseExpressionAtom(ExpressionAtomPredicateContext node)
{
foreach (var child in node.children)
{
if (child is ConstantExpressionAtomContext constantExp)
{
this.ParseConstExpression(constantExp);
}
else if (child is MysqlVariableExpressionAtomContext variableExp)
{
string text = variableExp.GetText();
this.Write(text, 1);
}
else if (child is FullColumnNameExpressionAtomContext columnNameExp)
{
string text = columnNameExp.GetText();
this.Write(text, 1);
}
else if (child is MathExpressionAtomContext mathExp)
{
this.ParseMathExpression(mathExp);
}
}
}
public string ParseExpressionAtom(ExpressionAtomPredicateContext node)
{
StringBuilder sb = new StringBuilder();
foreach (var child in node.children)
{
if (child is ConstantExpressionAtomContext constantExp)
{
string text = this.ParseConstExpression(constantExp);
sb.Append(text);
}
else if (child is MysqlVariableExpressionAtomContext variableExp)
{
string text = variableExp.GetText();
sb.Append(text);
}
else if (child is FullColumnNameExpressionAtomContext columnNameExp)
{
string text = columnNameExp.GetText();
sb.Append(text);
}
else if (child is MathExpressionAtomContext mathExp)
{
string text = this.ParseMathExpression(mathExp);
sb.Append(text);
}
else if (child is NestedExpressionAtomContext nested)
{
string text = nested.GetText();
sb.Append(text);
}
else if (child is FunctionCallExpressionAtomContext func)
{
string text = func.GetText();
sb.Append(text);
}
}
return(sb.ToString());
}
public static QsiExpressionNode VisitExpressionAtomPredicate(ExpressionAtomPredicateContext context)
{
return(VisitExpressionAtom(context.expressionAtom()));
}