// System.out.println(Arrays.toString(elements));
// TODO: check for invalid token/rule names, bad syntax
public virtual XPathElement[] Split(string path)
{
AntlrInputStream @in;
try
{
@in = new AntlrInputStream(new StringReader(path));
}
catch (IOException ioe)
{
throw new ArgumentException("Could not read path: " + path, ioe);
}
XPathLexer lexer = new _XPathLexer_87(@in);
lexer.RemoveErrorListeners();
lexer.AddErrorListener(new XPathLexerErrorListener());
CommonTokenStream tokenStream = new CommonTokenStream(lexer);
try
{
tokenStream.Fill();
}
catch (LexerNoViableAltException e)
{
int pos = lexer.Column;
string msg = "Invalid tokens or characters at index " + pos + " in path '" + path + "'";
throw new ArgumentException(msg, e);
}
IList <IToken> tokens = tokenStream.GetTokens();
// System.out.println("path="+path+"=>"+tokens);
IList <XPathElement> elements = new List <XPathElement>();
int n = tokens.Count;
int i = 0;
while (i < n)
{
IToken el = tokens[i];
IToken next = null;
switch (el.Type)
{
case XPathLexer.Root:
case XPathLexer.Anywhere:
{
bool anywhere = el.Type == XPathLexer.Anywhere;
i++;
next = tokens[i];
bool invert = next.Type == XPathLexer.Bang;
if (invert)
{
i++;
next = tokens[i];
}
XPathElement pathElement = GetXPathElement(next, anywhere);
pathElement.invert = invert;
elements.Add(pathElement);
i++;
break;
}
case XPathLexer.TokenRef:
case XPathLexer.RuleRef:
case XPathLexer.Wildcard:
{
elements.Add(GetXPathElement(el, false));
i++;
break;
}
case TokenConstants.EOF:
{
goto loop_break;
}
default:
{
throw new ArgumentException("Unknowth path element " + el);
}
}
}
loop_break :;
return(elements.ToArray());
}
// System.out.println(Arrays.toString(elements));
// TODO: check for invalid token/rule names, bad syntax
public virtual XPathElement[] Split(string path)
{
AntlrInputStream @in;
try
{
@in = new AntlrInputStream(new StringReader(path));
}
catch (IOException ioe)
{
throw new ArgumentException("Could not read path: " + path, ioe);
}
XPathLexer lexer = new _XPathLexer_87(@in);
lexer.RemoveErrorListeners();
lexer.AddErrorListener(new XPathLexerErrorListener());
CommonTokenStream tokenStream = new CommonTokenStream(lexer);
try
{
tokenStream.Fill();
}
catch (LexerNoViableAltException e)
{
int pos = lexer.Column;
string msg = "Invalid tokens or characters at index " + pos + " in path '" + path + "'";
throw new ArgumentException(msg, e);
}
IList<IToken> tokens = tokenStream.GetTokens();
// System.out.println("path="+path+"=>"+tokens);
IList<XPathElement> elements = new List<XPathElement>();
int n = tokens.Count;
int i = 0;
while (i < n)
{
IToken el = tokens[i];
IToken next = null;
switch (el.Type)
{
case XPathLexer.Root:
case XPathLexer.Anywhere:
{
bool anywhere = el.Type == XPathLexer.Anywhere;
i++;
next = tokens[i];
bool invert = next.Type == XPathLexer.Bang;
if (invert)
{
i++;
next = tokens[i];
}
XPathElement pathElement = GetXPathElement(next, anywhere);
pathElement.invert = invert;
elements.Add(pathElement);
i++;
break;
}
case XPathLexer.TokenRef:
case XPathLexer.RuleRef:
case XPathLexer.Wildcard:
{
elements.Add(GetXPathElement(el, false));
i++;
break;
}
case TokenConstants.Eof:
{
goto loop_break;
}
default:
{
throw new ArgumentException("Unknowth path element " + el);
}
}
}
loop_break: ;
return elements.ToArray();
}