public string ParseMathExpression(MathExpressionAtomContext node)
{
StringBuilder sb = new StringBuilder();
foreach (var child in node.children)
{
if (child is MysqlVariableExpressionAtomContext variableExp)
{
string text = variableExp.GetText();
sb.Append(text);
}
else if (child is MathOperatorContext @operator)
{
string text = @operator.GetText();
sb.Append(text);
}
else if (child is ConstantExpressionAtomContext constant)
{
string text = this.ParseConstExpression(constant);
sb.Append(text);
}
else if (child is FunctionCallExpressionAtomContext func)
{
string text = func.GetText();
sb.Append(text);
}
}
return(sb.ToString());
}
private void ParseMathExpression(MathExpressionAtomContext node)
{
foreach (var child in node.children)
{
if (child is MysqlVariableExpressionAtomContext variableExp)
{
string text = variableExp.GetText();
this.Write(text, 1);
}
else if (child is MathOperatorContext @operator)
{
string text = @operator.GetText();
this.Write(text);
}
else if (child is ConstantExpressionAtomContext constant)
{
this.ParseConstExpression(constant);
}
}
}
