private object EvaluateInPlace(string content, IInternalContextAdapter context)
{
try
{
SimpleNode inlineNode = runtimeServices.Parse(new StringReader(content), context.CurrentTemplateName, false);
inlineNode.Init(context, runtimeServices);
return(Evaluate(inlineNode, context));
}
catch (System.Exception)
{
throw new ArgumentException(string.Format("Problem evaluating dictionary entry with content {0}", content));
}
}
/* Override this method if you want to customize how the node dumps
* out its children. */
public void Dump(String prefix)
{
Console.Out.WriteLine(ToString(prefix));
if (children != null)
{
for (int i = 0; i < children.Length; ++i)
{
SimpleNode n = (SimpleNode)children[i];
if (n != null)
{
n.Dump(string.Format("{0} ", prefix));
}
}
}
}
/// <summary>
/// Evaluate the node.
/// </summary>
public override Object Value(IInternalContextAdapter context)
{
int size = ChildrenCount;
IDictionary objectMap = new Hashtable();
for (int i = 0; i < size; i += 2)
{
SimpleNode keyNode = (SimpleNode)GetChild(i);
SimpleNode valueNode = (SimpleNode)GetChild(i + 1);
Object key = (keyNode == null ? null : keyNode.Value(context));
Object value = (valueNode == null ? null : valueNode.Value(context));
objectMap.Add(key, value);
}
return(objectMap);
}
/*
* CODE FOR ALTERNATE IMPL : please ignore. I will remove when comfortable with current.
*/
/// <summary> not used in current impl
/// *
/// Constructor for alternate impl where VelProxy class would make new
/// VMProxyArg objects, and use this constructor to avoid re-parsing the
/// reference args
/// *
/// that impl also had the VMProxyArg carry it's context
/// </summary>
public VMProxyArg(VMProxyArg model, IInternalContextAdapter c)
{
userContext = c;
contextReference = model.ContextReference;
callerReference = model.CallerReference;
nodeTree = model.NodeTree;
staticObject = model.StaticObject;
type = model.Type;
if (nodeTree != null)
{
numTreeChildren = nodeTree.ChildrenCount;
}
if (type == ParserTreeConstants.REFERENCE)
{
if (numTreeChildren == 0)
{
/*
* use the reference node to do this...
*/
singleLevelRef = ((ASTReference) nodeTree).RootString;
}
}
}
/// <summary> does the housekeeping upon creating. If a dynamic type
/// it needs to make an AST for further get()/set() operations
/// Anything else is constant.
/// </summary>
private void setup()
{
switch(type)
{
case ParserTreeConstants.INTEGER_RANGE:
case ParserTreeConstants.REFERENCE:
case ParserTreeConstants.OBJECT_ARRAY:
case ParserTreeConstants.STRING_LITERAL:
case ParserTreeConstants.TEXT:
{
/*
* dynamic types, just render
*/
constant = false;
try
{
/*
* fakie : wrap in directive to get the parser to treat our args as args
* it doesn't matter that #include() can't take all these types, because we
* just want the parser to consider our arg as a Directive/VM arg rather than
* as if inline in schmoo
*/
String buff = string.Format("#include({0} ) ", callerReference);
//ByteArrayInputStream inStream = new ByteArrayInputStream( buff.getBytes() );
//UPGRADE_ISSUE: The equivalent of constructor 'java.io.BufferedReader.BufferedReader' is incompatible with the expected type in C#. 'ms-help://MS.VSCC/commoner/redir/redirect.htm?keyword="jlca1109"'
TextReader br = new StringReader(buff);
nodeTree = runtimeServices.Parse(br, string.Format("VMProxyArg:{0}", callerReference), true);
/*
* now, our tree really is the first DirectiveArg(), and only one
*/
nodeTree = (SimpleNode) nodeTree.GetChild(0).GetChild(0);
/*
* sanity check
*/
if (nodeTree != null && nodeTree.Type != type)
{
runtimeServices.Error("VMProxyArg.setup() : programmer error : type doesn't match node type.");
}
/*
* init. We can do this as they are only references
*/
nodeTree.Init(null, runtimeServices);
}
catch(System.Exception e)
{
runtimeServices.Error(string.Format("VMProxyArg.setup() : exception {0} : {1}", callerReference, e));
}
break;
}
case ParserTreeConstants.TRUE:
{
constant = true;
staticObject = true;
break;
}
case ParserTreeConstants.FALSE:
{
constant = true;
staticObject = false;
break;
}
case ParserTreeConstants.NUMBER_LITERAL:
{
constant = true;
staticObject = Int32.Parse(callerReference);
break;
}
case ParserTreeConstants.WORD:
{
/*
* this is technically an error...
*/
runtimeServices.Error(
string.Format(
"Unsupported arg type : {0} You most likely intended to call a VM with a string literal, so enclose with ' or \" characters. (VMProxyArg.setup())",
callerReference));
constant = true;
staticObject = new String(callerReference.ToCharArray());
break;
}
default:
{
runtimeServices.Error(string.Format(" VMProxyArg.setup() : unsupported type : {0}", callerReference));
}
break;
}
}
internal void parseTree(IInternalContextAdapter internalContextAdapter)
{
try
{
//UPGRADE_ISSUE: The equivalent of constructor 'java.io.BufferedReader.BufferedReader' is incompatible with the expected type in C#. 'ms-help://MS.VSCC/commoner/redir/redirect.htm?keyword="jlca1109"'
TextReader br = new StringReader(macroBody);
nodeTree = Enclosing_Instance.runtimeServices.Parse(br, string.Format("VM:{0}", macroName), true);
nodeTree.Init(internalContextAdapter, null);
}
catch(System.Exception e)
{
Enclosing_Instance.runtimeServices.Error(
string.Format("VelocimacroManager.parseTree() : exception {0} : {1}", macroName, e));
}
}
/// <summary> init : we don't have to do much. Init the tree (there
/// shouldn't be one) and then see if interpolation is turned on.
/// </summary>
public override Object Init(IInternalContextAdapter context, Object data)
{
base.Init(context, data);
/*
* the stringlit is set at template parse time, so we can
* do this here for now. if things change and we can somehow
* create stringlits at runtime, this must
* move to the runtime execution path
*
* so, only if interpolation is turned on AND it starts
* with a " AND it has a directive or reference, then we
* can interpolate. Otherwise, don't bother.
*/
interpolate = FirstToken.Image.StartsWith("\"") &&
((FirstToken.Image.IndexOf('$') != - 1) ||
(FirstToken.Image.IndexOf('#') != - 1));
/*
* get the contents of the string, minus the '/" at each end
*/
image = FirstToken.Image.Substring(1, (FirstToken.Image.Length - 1) - (1));
/*
* tack a space on the end (dreaded <MORE> kludge)
*/
interpolateImage = string.Format("{0} ", image);
if (interpolate)
{
/*
* now parse and init the nodeTree
*/
TextReader br = new StringReader(interpolateImage);
/*
* it's possible to not have an initialization context - or we don't
* want to trust the caller - so have a fallback value if so
*
* Also, do *not* dump the VM namespace for this template
*/
nodeTree = runtimeServices.Parse(br, (context != null) ? context.CurrentTemplateName : "StringLiteral", false);
/*
* init with context. It won't modify anything
*/
nodeTree.Init(context, runtimeServices);
}
return data;
}
private object Evaluate(SimpleNode inlineNode, IInternalContextAdapter context)
{
if (inlineNode.ChildrenCount == 1)
{
INode child = inlineNode.GetChild(0);
return child.Value(context);
}
else
{
StringBuilder result = new StringBuilder();
for(int i = 0; i < inlineNode.ChildrenCount; i++)
{
INode child = inlineNode.GetChild(i);
if (child.Type == ParserTreeConstants.REFERENCE)
{
result.Append(child.Value(context));
}
else
{
result.Append(child.Literal);
}
}
return result.ToString();
}
}
public virtual Object Visit(SimpleNode node, Object data)
{
data = node.ChildrenAccept(this, data);
return data;
}
/// <summary>
/// parses the macro. We need to do this here, at init time, or else
/// the local-scope template feature is hard to get to work :)
/// </summary>
private void parseTree(String[] callArgs)
{
try
{
TextReader br = new StringReader(macroBody);
// now parse the macro - and don't dump the namespace
nodeTree = runtimeServices.Parse(br, ns, false);
// now, to make null references render as proper schmoo
// we need to tweak the tree and change the literal of
// the appropriate references
// we only do this at init time, so it's the overhead
// is irrelevant
Hashtable hm = new Hashtable();
for(int i = 1; i < argArray.Length; i++)
{
String arg = callArgs[i - 1];
// if the calling arg is indeed a reference
// then we add to the map. We ignore other
// stuff
if (arg[0] == '$')
{
hm[argArray[i]] = arg;
}
}
// now make one of our reference-munging visitor, and
// let 'er rip
VMReferenceMungeVisitor v = new VMReferenceMungeVisitor(hm);
nodeTree.Accept(v, null);
}
catch(System.Exception e)
{
runtimeServices.Error(string.Format("VelocimacroManager.parseTree() : exception {0} : {1}", macroName, e));
}
}
/// <summary>Display a SimpleNode
/// </summary>
public override Object Visit(SimpleNode node, Object data)
{
return ShowNode(node, data);
}
