public void Visit(IfStmt ifStmt, object[] args)
{
ifStmt.BlockList = new List <IfBlock>();
do
{
IfBlock block = new IfBlock();
block.Content = new List <Statement>();
block.Parent = ifStmt;
block.Location = new Location(file, reader.LineNumber, reader.LinePosition);
if (dic[reader.Name] == "else")
{
block.Condition = null;
}
else
{
reader.MoveToAttribute("cond");
string condExpr = reader.Value;
Expr.Expression expr = exprParser.ParseExpr(condExpr,
new Location(file, reader.LineNumber, reader.LinePosition).Offset(6)); //TODO：Location
block.Condition = expr;
}
visitMainContent(block, block.Content);
ifStmt.BlockList.Add(block);
} while (dic[reader.Name] == "elseif" || dic[reader.Name] == "else");
}
public void Visit(ReturnStmt returnStmt, object[] args)
{
string expr = reader.ReadString();
Expr.Expression result = exprParser.ParseExpr(expr,
new Location(file, reader.LineNumber, reader.LinePosition).Offset(8));
returnStmt.Expression = result;
}
public void Visit(ExpressionStmt expressionStmt, object[] args)
{
expressionStmt.ExpressionList = new List <Expr.Expression>();
string expr = reader.ReadString();
bool escape = false;
bool inQuot = false;
int firstPos = 0;
string subExpr;
for (int i = 0; i < expr.Length; i++)
{
if (expr[i] == '\\')
{
escape = !escape;
}
else if (expr[i] == '"')
{
if (!inQuot)
{
inQuot = true;
}
else if (escape)
{
escape = false;
}
else
{
inQuot = false;
}
}
else if (expr[i] == ';')
{
subExpr = expr.Substring(firstPos, i - firstPos);
if (subExpr.Trim().Length > 0)
{
Expr.Expression result = exprParser.ParseExpr(subExpr,
new Location(file, reader.LineNumber, reader.LinePosition).Offset(6 + firstPos));
expressionStmt.ExpressionList.Add(result);
}
firstPos = i + 1;
escape = false;
}
else
{
escape = false;
}
}
if (firstPos < expr.Length)
{
subExpr = expr.Substring(firstPos, expr.Length - firstPos);
if (subExpr.Trim().Length > 0)
{
Expr.Expression result = exprParser.ParseExpr(subExpr,
new Location(file, reader.LineNumber, reader.LinePosition).Offset(6 + firstPos));
expressionStmt.ExpressionList.Add(result);
}
}
}
