//*
// * Analyzes a parse tree node by traversing all it's child nodes.
// * The tree traversal is depth-first, and the appropriate
// * callback methods will be called. If the node is a production
// * node, a new production node will be created and children will
// * be added by recursively processing the children of the
// * specified production node. This method is used to process a
// * parse tree after creation.
// *
// * @param node the parse tree node to process
// *
// * @return the resulting parse tree node
// *
// * @throws ParserLogException if the node analysis discovered
// * errors
//
public Node Analyze(Node node)
{
ParserLogException log = new ParserLogException();
node = Analyze(node, log);
if (log.Count > 0)
{
throw log;
}
return(node);
}
internal ExpressionCompileException(ParserLogException parseException)
: base(string.Empty, parseException)
{
MyReason = CompileExceptionReason.SyntaxError;
}
//*
// * Analyzes a parse tree node by traversing all it's child nodes.
// * The tree traversal is depth-first, and the appropriate
// * callback methods will be called. If the node is a production
// * node, a new production node will be created and children will
// * be added by recursively processing the children of the
// * specified production node. This method is used to process a
// * parse tree after creation.
// *
// * @param node the parse tree node to process
// * @param log the parser error log
// *
// * @return the resulting parse tree node
//
private Node Analyze(Node node, ParserLogException log)
{
Production prod = default(Production);
int errorCount = 0;
errorCount = log.Count;
if (node is Production)
{
prod = (Production)node;
prod = new Production(prod.Pattern);
try
{
Enter(prod);
}
catch (ParseException e)
{
log.AddError(e);
}
for (int i = 0; i <= node.Count - 1; i++)
{
try
{
Child(prod, Analyze(node[i], log));
}
catch (ParseException e)
{
log.AddError(e);
}
}
try
{
return(Exit(prod));
}
catch (ParseException e)
{
if (errorCount == log.Count)
{
log.AddError(e);
}
}
}
else
{
node.Values.Clear();
try
{
Enter(node);
}
catch (ParseException e)
{
log.AddError(e);
}
try
{
return(Exit(node));
}
catch (ParseException e)
{
if (errorCount == log.Count)
{
log.AddError(e);
}
}
}
return(null);
}
//*
// * Resets this parser. This method will clear all the internal
// * state and error log in the parser, but will not reset the
// * tokenizer. In order to parse multiple input streams with
// * the same parser, the Tokenizer.reset() method must also be
// * called.
// *
// * @see Tokenizer#Reset
// *
// * @since 1.5
//
public void Reset()
{
this.tokens.Clear();
this.errorLog = new ParserLogException();
this.errorRecovery = -1;
}
