private static XpidlComment CreateXpidlComment(CommentSyntaxNode commentSyntaxNode)
{
if (commentSyntaxNode == null)
{
throw new ArgumentNullException("commentSyntaxNode");
}
var xpidlComment = new XpidlComment(commentSyntaxNode.CommentText);
return xpidlComment;
}
public virtual void VisitComment(CommentSyntaxNode node)
{
node.Accept(this);
}
private static XpidlInlineCHeader CreateXpidlInlineCHeader(CommentSyntaxNode inlineCHeaderSyntaxNode)
{
if (inlineCHeaderSyntaxNode == null)
{
throw new ArgumentNullException("inlineCHeaderSyntaxNode");
}
var xpidlInlineCHeader = new XpidlInlineCHeader(inlineCHeaderSyntaxNode.CommentText);
return xpidlInlineCHeader;
}
private ComplexSyntaxNode ParseImpl(TextReader xpidlTextReader)
{
var goldParser = new GoldParser.Parser(xpidlTextReader, m_Grammar) { TrimReductions = true, IgnoreNestedComments = true };
goldParser.AddCommentSymbols(
new Regex(@"^\/\*$", RegexOptions.Singleline), // /*
new Regex(@"^\*\/$", RegexOptions.Singleline)); // */
goldParser.AddCommentSymbols(
new Regex(@"^\%\{\s*C\+\+$", RegexOptions.Singleline), // %{ C++
new Regex(@"^\%\}(\s*C\+\+)?$", RegexOptions.Singleline)); // %} C++
var rootSyntaxNode = new ComplexSyntaxNode(null);
while (true)
{
ParseMessage parseMessage = goldParser.Parse();
switch (parseMessage)
{
case ParseMessage.Empty:
break;
// Comment or inline C header
case ParseMessage.CommentLineRead:
case ParseMessage.CommentBlockRead:
var commentSyntaxNode = new CommentSyntaxNode(goldParser.CommentText);
if (goldParser.TokenSyntaxNode == null)
{
rootSyntaxNode.AddChildNode(commentSyntaxNode);
}
else
{
((SyntaxNode)goldParser.TokenSyntaxNode).AttachCommentNode(commentSyntaxNode);
}
break;
// Read valid token
case ParseMessage.TokenRead:
var simpleSyntaxNode = new SimpleSyntaxNode(goldParser.TokenSymbol, goldParser.TokenText);
goldParser.TokenSyntaxNode = simpleSyntaxNode;
break;
// Can create new xpidl-node
case ParseMessage.Reduction:
var complexSyntaxNode = new ComplexSyntaxNode(goldParser.ReductionRule);
for (Int32 i = 0; i < goldParser.ReductionCount; ++i)
{
var syntaxNode = (SyntaxNode)goldParser.GetReductionSyntaxNode(i);
complexSyntaxNode.AddChildNode(syntaxNode);
if (i == (goldParser.ReductionCount - 1))
{
complexSyntaxNode.ReattachCommentNodes(syntaxNode);
}
else
{
syntaxNode.DetachCommentNodes(complexSyntaxNode);
}
}
goldParser.TokenSyntaxNode = complexSyntaxNode;
break;
// Parsing successfully completed
case ParseMessage.Accept:
var acceptedSyntaxNode = (SyntaxNode)goldParser.TokenSyntaxNode;
Debug.Assert(acceptedSyntaxNode != null);
rootSyntaxNode.AddChildNode(acceptedSyntaxNode);
acceptedSyntaxNode.DetachCommentNodes(rootSyntaxNode);
return rootSyntaxNode;
// Grammar table is not loaded
case ParseMessage.NotLoadedError:
throw new XpidlParserException("Grammar not loaded");
// Unexpected end of input
case ParseMessage.CommentError:
throw new XpidlParserException("Comment error");
// Invalid token
case ParseMessage.LexicalError:
throw new XpidlParserSyntaxException("Can not recognize token", goldParser.TokenText, goldParser.LineNumber, goldParser.LinePosition);
// Unexpected token
case ParseMessage.SyntaxError:
throw new XpidlParserSyntaxException("Unexpected token", goldParser.TokenText, goldParser.LineNumber, goldParser.LinePosition);
// Fatal internal error
case ParseMessage.InternalError:
throw new XpidlParserException("Internal parser error");
}
}
}
