public virtual object ParseNode()
{
// "%label:" prefix
string label = null;
if (ttype == TreePatternLexer.Percent)
{
ttype = tokenizer.NextToken();
if (ttype != TreePatternLexer.Id)
{
return(null);
}
label = tokenizer.sval.ToString();
ttype = tokenizer.NextToken();
if (ttype != TreePatternLexer.Colon)
{
return(null);
}
ttype = tokenizer.NextToken(); // move to ID following colon
}
// Wildcard?
if (ttype == TreePatternLexer.Dot)
{
ttype = tokenizer.NextToken();
IToken wildcardPayload = new CommonToken(0, ".");
TreeWizard.TreePattern node =
new TreeWizard.WildcardTreePattern(wildcardPayload);
if (label != null)
{
node.label = label;
}
return(node);
}
// "ID" or "ID[arg]"
if (ttype != TreePatternLexer.Id)
{
return(null);
}
string tokenName = tokenizer.sval.ToString();
ttype = tokenizer.NextToken();
if (tokenName.Equals("nil"))
{
return(adaptor.Nil());
}
string text = tokenName;
// check for arg
string arg = null;
if (ttype == TreePatternLexer.Arg)
{
arg = tokenizer.sval.ToString();
text = arg;
ttype = tokenizer.NextToken();
}
// create node
int treeNodeType = wizard.GetTokenType(tokenName);
if (treeNodeType == TokenTypes.Invalid)
{
return(null);
}
object node2;
node2 = adaptor.Create(treeNodeType, text);
if (label != null && node2.GetType() == typeof(TreeWizard.TreePattern))
{
((TreeWizard.TreePattern)node2).label = label;
}
if (arg != null && node2.GetType() == typeof(TreeWizard.TreePattern))
{
((TreeWizard.TreePattern)node2).hasTextArg = true;
}
return(node2);
}
public void TestRepeatsVisitWithNullParentAndContext()
{
TreeWizard wiz = new TreeWizard( adaptor, tokens );
CommonTree t = (CommonTree)wiz.Create( "(A B (A C B) B D D)" );
IList elements = new List<object>();
wiz.Visit( t, wiz.GetTokenType( "A" ),
new testRepeatsVisitWithContext_TreeWizard_Visitor( elements ) );
string found = elements.ToElementString();
string expecting = "[A@nil[0], A@A[1]]";
Assert.AreEqual( expecting, found );
}
public object ParseNode()
{
// "%label:" prefix
string label = null;
if (ttype == TreePatternLexer.PERCENT)
{
ttype = tokenizer.NextToken();
if (ttype != TreePatternLexer.ID)
{
return(null);
}
label = tokenizer.sval.ToString();
ttype = tokenizer.NextToken();
if (ttype != TreePatternLexer.COLON)
{
return(null);
}
ttype = tokenizer.NextToken(); // move to ID following colon
}
// Wildcard?
if (ttype == TreePatternLexer.DOT)
{
ttype = tokenizer.NextToken();
IToken wildcardPayload = new CommonToken(0, ".");
TreeWizard.TreePattern node = new TreeWizard.WildcardTreePattern(wildcardPayload);
if (label != null)
{
node.label = label;
}
return(node);
}
// "ID" or "ID[arg]"
if (ttype != TreePatternLexer.ID)
{
return(null);
}
string tokenName = tokenizer.sval.ToString();
ttype = tokenizer.NextToken();
if (tokenName.Equals("nil"))
{
return(adaptor.GetNilNode());
}
string text = tokenName;
// check for arg
string arg = null;
if (ttype == TreePatternLexer.ARG)
{
arg = tokenizer.sval.ToString();
text = arg;
ttype = tokenizer.NextToken();
}
// create node
int treeNodeType = wizard.GetTokenType(tokenName);
if (treeNodeType == Token.INVALID_TOKEN_TYPE)
{
return(null);
}
object nodeObj;
nodeObj = adaptor.Create(treeNodeType, text);
if ((label != null) && (nodeObj.GetType() == typeof(TreeWizard.TreePattern)))
{
((TreeWizard.TreePattern)nodeObj).label = label;
}
if ((arg != null) && (nodeObj.GetType() == typeof(TreeWizard.TreePattern)))
{
((TreeWizard.TreePattern)nodeObj).hasTextArg = true;
}
return(nodeObj);
}
public void TestRepeatsVisit()
{
TreeWizard wiz = new TreeWizard( adaptor, tokens );
CommonTree t = (CommonTree)wiz.Create( "(A B (A C B) B D D)" );
IList elements = new List<object>();
wiz.Visit( t, wiz.GetTokenType( "B" ),
new testNoRepeatsVisit_TreeWizard_Visitor( elements ) );
string found = elements.ToElementString();
string expecting = "[B, B, B]";
Assert.AreEqual( expecting, found );
}
public void TestRepeatsVisitWithContext()
{
TreeWizard wiz = new TreeWizard( adaptor, tokens );
CommonTree t = (CommonTree)wiz.Create( "(A B (A C B) B D D)" );
IList elements = new List<object>();
wiz.Visit( t, wiz.GetTokenType( "B" ),
new testRepeatsVisitWithContext_TreeWizard_Visitor( elements ) );
string found = elements.ToElementString();
string expecting = "[B@A[0], B@A[1], B@A[2]]";
assertEquals( expecting, found );
}