/// <summary>Just print out the string; no reference to self because this
/// is a literal--not sensitive to attribute values.
/// </summary>
public override int write(StringTemplate self, StringTemplateWriter outWriter)
{
if (str != null)
{
int n = outWriter.write(str);
return n;
}
return 0;
}
public StringTemplateTreeView(System.String label, StringTemplate st)
: base()
{
this.Text = label;
JTreeStringTemplatePanel tp = new JTreeStringTemplatePanel(new JTreeStringTemplateModel(st), null);
//UPGRADE_TODO: Method 'javax.swing.JFrame.getContentPane' was converted to 'System.Windows.Forms.Form' which has a different behavior. 'ms-help://MS.VSCC.2003/commoner/redir/redirect.htm?keyword="jlca1073_javaxswingJFramegetContentPane_3"'
System.Windows.Forms.Control content = ((System.Windows.Forms.ContainerControl) this);
//UPGRADE_TODO: Method 'java.awt.Container.add' was converted to 'System.Windows.Forms.ContainerControl.Controls.Add' which has a different behavior. 'ms-help://MS.VSCC.2003/commoner/redir/redirect.htm?keyword="jlca1073_javaawtContaineradd_javaawtComponent_javalangObject_3"'
content.Controls.Add(tp);
tp.Dock = System.Windows.Forms.DockStyle.Fill;
tp.BringToFront();
//UPGRADE_NOTE: Some methods of the 'java.awt.event.WindowListener' class are not used in the .NET Framework. 'ms-help://MS.VSCC.2003/commoner/redir/redirect.htm?keyword="jlca1308_3"'
Closing += new System.ComponentModel.CancelEventHandler(new AnonymousClassWindowAdapter(this).windowClosing);
//UPGRADE_TODO: Method 'java.awt.Component.setSize' was converted to 'System.Windows.Forms.Control.Size' which has a different behavior. 'ms-help://MS.VSCC.2003/commoner/redir/redirect.htm?keyword="jlca1073_javaawtComponentsetSize_int_int_3"'
Size = new System.Drawing.Size(WIDTH, HEIGHT);
}
/// <summary>Make the 'to' template look exactly like the 'from' template
/// except for the attributes. This is like creating an instance
/// of a class in that the executable code is the same (the template
/// chunks), but the instance data is blank (the attributes). Do
/// not copy the enclosingInstance pointer since you will want this
/// template to eval in a context different from the examplar.
/// </summary>
protected internal virtual void dup(StringTemplate from, StringTemplate to)
{
if (debugMode)
debug("dup template ID " + from.getTemplateID() + " to get " + to.getTemplateID());
to.pattern = from.pattern;
to.chunks = from.chunks;
to.formalArguments = from.formalArguments;
to.name = from.name;
to.group = from.group;
to.listener = from.listener;
}
protected internal virtual int write(StringTemplate self, Object o, StringTemplateWriter outWriter, Object separator)
{
if (o == null)
{
return 0;
}
int n = 0;
try
{
if (o is StringTemplate)
{
StringTemplate stToWrite = (StringTemplate) o;
stToWrite.setEnclosingInstance(self);
// if self is found up the enclosing instance chain, then
// infinite recursion
if (StringTemplate.inLintMode() && StringTemplate.isRecursiveEnclosingInstance(stToWrite))
{
// throw exception since sometimes eval keeps going
// even after I ignore this write of o.
throw new System.SystemException("infinite recursion to " + stToWrite.getTemplateDeclaratorString() + " referenced in " + stToWrite.getEnclosingInstance().getTemplateDeclaratorString() + "; stack trace:\n" + stToWrite.getEnclosingInstanceStackTrace());
}
else
{
n = stToWrite.write(outWriter);
}
return n;
}
// normalize anything iteratable to iterator
o = convertAnythingIteratableToIterator(o);
if (o is IEnumerator)
{
IEnumerator iter = (IEnumerator) o;
String separatorString = null;
if (separator != null)
{
separatorString = computeSeparator(self, outWriter, separator);
}
int i = 0;
int charWrittenForValue = 0;
Object iterValue = null;
while (iter.MoveNext())
{
if (i > 0)
{
bool valueIsPureConditional = false;
if (iterValue is StringTemplate)
{
StringTemplate iterValueST = (StringTemplate) iterValue;
IList chunks = (IList) iterValueST.getChunks();
Expr firstChunk = (Expr) chunks[0];
valueIsPureConditional = firstChunk is ConditionalExpr && ((ConditionalExpr) firstChunk).getElseSubtemplate() == null;
}
bool emptyIteratedValue = valueIsPureConditional && charWrittenForValue == 0;
if (!emptyIteratedValue && separator != null)
{
n += outWriter.write(separatorString);
}
}
iterValue = iter.Current;
charWrittenForValue = write(self, iterValue, outWriter, separator);
n += charWrittenForValue;
i++;
}
}
else
{
n = outWriter.write(o.ToString());
return n;
}
}
catch (System.IO.IOException io)
{
self.error("problem writing object: " + o, io);
}
return n;
}
/// <summary>A separator is normally just a string literal, but is still an AST that
/// we must evaluate. The separator can be any expression such as a template
/// include or string cat expression etc...
/// </summary>
protected internal virtual String computeSeparator(StringTemplate self, StringTemplateWriter outWriter, Object separator)
{
if (separator == null)
{
return null;
}
if (separator is StringTemplateAST)
{
StringTemplateAST separatorTree = (StringTemplateAST) separator;
// must evaluate, writing to a string so we can hand on to it
ASTExpr e = new ASTExpr(getEnclosingTemplate(), separatorTree, null);
System.IO.StringWriter buf = new System.IO.StringWriter();
// create a new instance of whatever StringTemplateWriter
// implementation they are using. Default is AutoIndentWriter.
// Defalut behavior is to indent but without
// any prior indents surrounding this attribute expression
StringTemplateWriter sw = null;
System.Type writerClass = outWriter.GetType();
try
{
System.Reflection.ConstructorInfo ctor = writerClass.GetConstructor(new System.Type[]{typeof(System.IO.TextWriter)});
sw = (StringTemplateWriter) ctor.Invoke(new Object[]{buf});
}
catch (System.Exception exc)
{
// default new AutoIndentWriter(buf)
self.error("cannot make implementation of StringTemplateWriter", exc);
sw = new AutoIndentWriter(buf);
}
try
{
e.write(self, sw);
}
catch (System.IO.IOException ioe)
{
self.error("can't evaluate separator expression", ioe);
}
return buf.ToString();
}
else
{
// just in case we expand in the future and it's something else
return separator.ToString();
}
}
/// <summary>To write out the value of an ASTExpr, invoke the evaluator in eval.g
/// to walk the tree writing out the values. For efficiency, don't
/// compute a bunch of strings and then pack them together. Write out directly.
/// </summary>
public override int write(StringTemplate self, StringTemplateWriter outWriter)
{
if (exprTree == null || self == null || outWriter == null)
{
return 0;
}
outWriter.pushIndentation(getIndentation());
//System.out.println("evaluating tree: "+exprTree.toStringList());
ActionEvaluator eval = new ActionEvaluator(self, this, outWriter);
int n = 0;
try
{
n = eval.action(exprTree); // eval and write out tree
}
catch (RecognitionException re)
{
self.error("can't evaluate tree: " + exprTree.ToStringList(), re);
}
outWriter.popIndentation();
return n;
}
/// <summary>Return o.getPropertyName() given o and propertyName. If o is
/// a stringtemplate then access it's attributes looking for propertyName
/// instead (don't check any of the enclosing scopes; look directly into
/// that object). Also try isXXX() for booleans. Allow HashMap,
/// Hashtable as special case (grab value for key).
/// </summary>
/// <summary>
/// Return o.getPropertyName() given o and propertyName. If o is
/// a stringtemplate then access it's attributes looking for propertyName
/// instead (don't check any of the enclosing scopes; look directly into
/// that object). Also try isXXX() for booleans. Allow HashMap,
/// Hashtable as special case (grab value for key).
/// </summary>
public virtual Object getObjectProperty(StringTemplate self, object o, string propertyName)
{
if (o == null || propertyName == null) {
return null;
}
Type c = o.GetType();
Object value = null;
// Special case: our automatically created Aggregates via
// attribute name: "{obj.{prop1,prop2}}"
if (c == typeof(StringTemplate.Aggregate)) {
value = ((StringTemplate.Aggregate) o).get(propertyName);
}
// Special case: if it's a template, pull property from
// it's attribute table.
// TODO: TJP just asked himself why we can't do inherited attr here?
else if (c == typeof(StringTemplate)) {
IDictionary attributes = ((StringTemplate) o).getAttributes();
if ( attributes!=null ) {
value = attributes[propertyName];
}
}
// Special case: if it's a HashMap, Hashtable then pull using
// key not the property method. Do NOT allow general Map interface
// as people could pass in their database masquerading as a Map.
else if ( isValidMapInstance(c) ) {
IDictionary map = (IDictionary)o;
value = map[propertyName];
}
else {
// lookup as property or accessor-method
string lookupName = Char.ToUpper(propertyName[0])+
propertyName.Substring(1);
//see if it's a property
PropertyInfo pi = c.GetProperty(lookupName,
BindingFlags.Instance | BindingFlags.Public | BindingFlags.IgnoreCase,
null, null, new Type[0], null);
if (pi != null) {
value = pi.GetValue(o, null);
}
else {
//see if it's a method
String methodName = "Get" + lookupName;
MethodInfo mi = c.GetMethod(methodName,
BindingFlags.Instance | BindingFlags.Public | BindingFlags.IgnoreCase,
null, new Type[0], null);
if (mi == null) {
mi = c.GetMethod("Is" + lookupName,
BindingFlags.Instance | BindingFlags.Public | BindingFlags.IgnoreCase,
null, new Type[0], null);
}
if (mi == null) {
self.error("Can't get property " +propertyName+ " as C# property '" +lookupName+
"' or as C# methods 'Get" +lookupName+ "' or 'Is" +lookupName+
"' from " +c.FullName+ " instance");
}
else {
value = mi.Invoke(o, null);
}
}
}
return value;
}
//throws RecognitionException
public void singleTemplateArg(AST _t,
StringTemplate embedded, IDictionary argumentContext
)
{
antlr.stringtemplate.language.StringTemplateAST singleTemplateArg_AST_in = (antlr.stringtemplate.language.StringTemplateAST)_t;
Object e = null;
try { // for error handling
AST __t41 = _t;
antlr.stringtemplate.language.StringTemplateAST tmp22_AST_in = (_t==ASTNULL) ? null : (antlr.stringtemplate.language.StringTemplateAST)_t;
match((AST)_t,SINGLEVALUEARG);
_t = _t.getFirstChild();
e=expr(_t);
_t = retTree_;
_t = __t41;
_t = _t.getNextSibling();
if ( e!=null ) {
String soleArgName = null;
// find the sole defined formal argument for embedded
bool error = false;
IDictionary formalArgs = embedded.getFormalArguments();
if ( formalArgs!=null )
{
ICollection argNames = formalArgs.Keys;
if ( argNames.Count==1 )
{
string[] argNamesArray = new string[argNames.Count];
argNames.CopyTo(argNamesArray,0);
soleArgName = argNamesArray[0];
//System.out.println("sole formal arg of "+embedded.getName()+" is "+soleArgName);
}
else
{
error=true;
}
}
else
{
error=true;
}
if ( error )
{
self.error("template "+embedded.getName()+
" must have exactly one formal arg in template context "+
self.getEnclosingInstanceStackString());
}
else
{
self.rawSetArgumentAttribute(embedded,argumentContext,soleArgName,e);
}
}
}
catch (RecognitionException ex)
{
reportError(ex);
if (null != _t)
{
_t = _t.getNextSibling();
}
}
retTree_ = _t;
}
//throws RecognitionException
public void argumentAssignment(AST _t,
StringTemplate embedded, IDictionary argumentContext
)
{
antlr.stringtemplate.language.StringTemplateAST argumentAssignment_AST_in = (antlr.stringtemplate.language.StringTemplateAST)_t;
antlr.stringtemplate.language.StringTemplateAST arg = null;
Object e = null;
try { // for error handling
if (null == _t)
_t = ASTNULL;
switch ( _t.Type )
{
case ASSIGN:
{
AST __t43 = _t;
antlr.stringtemplate.language.StringTemplateAST tmp20_AST_in = (_t==ASTNULL) ? null : (antlr.stringtemplate.language.StringTemplateAST)_t;
match((AST)_t,ASSIGN);
_t = _t.getFirstChild();
arg = (_t==ASTNULL) ? null : (antlr.stringtemplate.language.StringTemplateAST)_t;
match((AST)_t,ID);
_t = _t.getNextSibling();
e=expr(_t);
_t = retTree_;
_t = __t43;
_t = _t.getNextSibling();
if ( e!=null ) {
self.rawSetArgumentAttribute(embedded,argumentContext,arg.getText(),e);
}
break;
}
case DOTDOTDOT:
{
antlr.stringtemplate.language.StringTemplateAST tmp21_AST_in = (_t==ASTNULL) ? null : (antlr.stringtemplate.language.StringTemplateAST)_t;
match((AST)_t,DOTDOTDOT);
_t = _t.getNextSibling();
embedded.setPassThroughAttributes(true);
break;
}
default:
{
throw new NoViableAltException(_t);
}
}
}
catch (RecognitionException ex)
{
reportError(ex);
if (null != _t)
{
_t = _t.getNextSibling();
}
}
retTree_ = _t;
}
public static void Main(System.String[] args)
{
StringTemplateGroup group = new StringTemplateGroup("dummy");
StringTemplate bold = group.defineTemplate("bold", "<b>$attr$</b>");
StringTemplate banner = group.defineTemplate("banner", "the banner");
StringTemplate st = new StringTemplate(group, "<html>\n" + "$banner(a=b)$" + "<p><b>$name$:$email$</b>" + "$if(member)$<i>$fontTag$member</font></i>$endif$");
st.setAttribute("name", "Terence");
st.setAttribute("name", "Tom");
st.setAttribute("email", "*****@*****.**");
st.setAttribute("templateAttr", bold);
StringTemplateTreeView frame = new StringTemplateTreeView("StringTemplate JTree Example", st);
//UPGRADE_TODO: Method 'java.awt.Component.setVisible' was converted to 'System.Windows.Forms.Control.Visible' which has a different behavior. 'ms-help://MS.VSCC.2003/commoner/redir/redirect.htm?keyword="jlca1073_javaawtComponentsetVisible_boolean_3"'
//UPGRADE_TODO: 'System.Windows.Forms.Application.Run' must be called to start a main form. 'ms-help://MS.VSCC.2003/commoner/redir/redirect.htm?keyword="jlca1135_3"'
frame.Visible = true;
}
public NewlineRef(StringTemplate enclosingTemplate, String str)
: base(enclosingTemplate, str)
{
}
public virtual void setEnclosingInstance(StringTemplate enclosingInstance)
{
if (this == enclosingInstance)
{
throw new System.ArgumentException("cannot embed template " + getName() + " in itself");
}
// set the parent for this template
this.enclosingInstance = enclosingInstance;
// make the parent track this template as an embedded template
this.enclosingInstance.addEmbeddedInstance(this);
}
/// <summary>Resolve an attribute reference. It can be in three possible places:
///
/// 1. the attribute list for the current template
/// 2. if self is an embedded template, somebody invoked us possibly
/// with arguments--check the argument context
/// 3. if self is an embedded template, the attribute list for the enclosing
/// instance (recursively up the enclosing instance chain)
///
/// Attribute references are checked for validity. If an attribute has
/// a value, its validity was checked before template rendering.
/// If the attribute has no value, then we must check to ensure it is a
/// valid reference. Somebody could reference any random value like $xyz$;
/// formal arg checks before rendering cannot detect this--only the ref
/// can initiate a validity check. So, if no value, walk up the enclosed
/// template tree again, this time checking formal parameters not
/// attributes Map. The formal definition must exist even if no value.
///
/// To avoid infinite recursion in toString(), we have another condition
/// to check regarding attribute values. If your template has a formal
/// argument, foo, then foo will hide any value available from "above"
/// in order to prevent infinite recursion.
///
/// This method is not static so people can overrided functionality.
/// </summary>
public virtual Object get(StringTemplate self, String attribute)
{
//System.out.println("get("+self.getName()+", "+attribute+")");
if (self == null)
{
return null;
}
if (lintMode)
{
self.trackAttributeReference(attribute);
}
// is it here?
Object o = null;
if (self.attributes != null)
{
o = self.attributes[attribute];
}
// nope, check argument context in case embedded
if (o == null)
{
IDictionary argContext = self.getArgumentContext();
if (argContext != null)
{
o = argContext[attribute];
}
}
if (o == null && self.getFormalArgument(attribute) != null)
{
// if you've defined attribute as formal arg for this
// template and it has no value, do not look up the
// enclosing dynamic scopes. This avoids potential infinite
// recursion.
return null;
}
// not locally defined, check enclosingInstance if embedded
if (o == null && self.enclosingInstance != null)
{
/*
System.out.println("looking for "+getName()+"."+attribute+" in super="+
enclosingInstance.getName());
*/
Object valueFromEnclosing = get(self.enclosingInstance, attribute);
if (valueFromEnclosing == null)
{
checkNullAttributeAgainstFormalArguments(self, attribute);
}
o = valueFromEnclosing;
}
return o;
}
public virtual void addEmbeddedInstance(StringTemplate embeddedInstance)
{
if (this.embeddedInstances == null)
{
this.embeddedInstances = new ArrayList();
}
this.embeddedInstances.Add(embeddedInstance);
}
/// <summary>Look up the enclosing instance chain (and include this) to see
/// if st is a template already in the enclosing instance chain.
/// </summary>
public static bool isRecursiveEnclosingInstance(StringTemplate st)
{
if (st == null)
{
return false;
}
StringTemplate p = st.enclosingInstance;
if (p == st)
{
return true; // self-recursive
}
// now look for indirect recursion
while (p != null)
{
if (p == st)
{
return true;
}
p = p.enclosingInstance;
}
return false;
}
/** Create an evaluator using attributes from self */
public ActionEvaluator(StringTemplate self, ASTExpr chunk, StringTemplateWriter @out)
{
this.self = self;
this.chunk = chunk;
this.@out = @out;
}
//throws RecognitionException
/** self is assumed to be the enclosing context as foo(x=y) must find y in
* the template that encloses the ref to foo(x=y). We must pass in
* the embedded template (the one invoked) so we can check formal args
* in rawSetArgumentAttribute.
*/
public IDictionary argList(AST _t,
StringTemplate embedded, IDictionary initialContext
)
{
IDictionary argumentContext=null;
antlr.stringtemplate.language.StringTemplateAST argList_AST_in = (antlr.stringtemplate.language.StringTemplateAST)_t;
argumentContext = initialContext;
if ( argumentContext==null ) {
argumentContext=new Hashtable();
}
try { // for error handling
if (null == _t)
_t = ASTNULL;
switch ( _t.Type )
{
case ARGS:
{
AST __t37 = _t;
antlr.stringtemplate.language.StringTemplateAST tmp19_AST_in = (_t==ASTNULL) ? null : (antlr.stringtemplate.language.StringTemplateAST)_t;
match((AST)_t,ARGS);
_t = _t.getFirstChild();
{ // ( ... )*
for (;;)
{
if (_t == null)
_t = ASTNULL;
if ((_t.Type==ASSIGN||_t.Type==DOTDOTDOT))
{
argumentAssignment(_t,embedded,argumentContext);
_t = retTree_;
}
else
{
goto _loop39_breakloop;
}
}
_loop39_breakloop: ;
} // ( ... )*
_t = __t37;
_t = _t.getNextSibling();
break;
}
case SINGLEVALUEARG:
{
singleTemplateArg(_t,embedded,argumentContext);
_t = retTree_;
break;
}
default:
{
throw new NoViableAltException(_t);
}
}
}
catch (RecognitionException ex)
{
reportError(ex);
if (null != _t)
{
_t = _t.getNextSibling();
}
}
retTree_ = _t;
return argumentContext;
}
// HELP ROUTINES CALLED BY EVALUATOR TREE WALKER
/// <summary>
/// For names,phones:{n,p | ...} treat the names, phones as lists
/// to be walked in lock step as n=names[i], p=phones[i].
/// </summary>
public virtual Object applyTemplateToListOfAttributes(StringTemplate self, IList attributes, StringTemplate templateToApply)
{
if ( attributes==null || templateToApply==null || attributes.Count==0 )
{
return null; // do not apply if missing templates or empty values
}
IDictionary argumentContext = null;
IList results = new ArrayList();
// convert all attributes to iterators even if just one value
for (int a = 0; a < attributes.Count; a++)
{
Object o = attributes[a];
o = convertAnythingToIterator(o);
attributes[a] = o;
}
int numAttributes = attributes.Count;
// ensure arguments line up
IDictionary formalArguments = templateToApply.getFormalArguments();
if ( formalArguments==null || formalArguments.Count==0 )
{
self.error("missing arguments in anonymous"+
" template in context "+self.getEnclosingInstanceStackString());
return null;
}
ICollection keys = formalArguments.Keys;
Object[] formalArgumentNames = new object[keys.Count];
keys.CopyTo(formalArgumentNames,0);
if ( formalArgumentNames.Length!=numAttributes )
{
self.error("number of arguments "+SupportClass.CollectionToString(formalArguments.Keys)+
" mismatch between attribute list and anonymous"+
" template in context "+self.getEnclosingInstanceStackString());
// truncate arg list to match smaller size
int shorterSize = Math.Min(formalArgumentNames.Length, numAttributes);
numAttributes = shorterSize;
Object[] newFormalArgumentNames = new Object[shorterSize];
System.Array.Copy(formalArgumentNames, 0,
newFormalArgumentNames, 0,
shorterSize);
formalArgumentNames = newFormalArgumentNames;
}
// keep walking while at least one attribute has values
while ( true )
{
argumentContext = new Hashtable();
// get a value for each attribute in list; put into arg context
// to simulate template invocation of anonymous template
int numEmpty = 0;
for (int a = 0; a < numAttributes; a++)
{
IEnumerator it = (IEnumerator)attributes[a];
if ( it.MoveNext() )
{
String argName = (String)formalArgumentNames[a];
Object iteratedValue = it.Current;
argumentContext[argName] = iteratedValue;
}
else
{
numEmpty++;
}
}
if ( numEmpty==numAttributes )
{
break;
}
StringTemplate embedded = templateToApply.getInstanceOf();
embedded.setEnclosingInstance(self);
embedded.setArgumentContext(argumentContext);
results.Add(embedded);
}
return results;
}
//throws RecognitionException
public Object attribute(AST _t)
{
Object value=null;
antlr.stringtemplate.language.StringTemplateAST attribute_AST_in = (antlr.stringtemplate.language.StringTemplateAST)_t;
antlr.stringtemplate.language.StringTemplateAST prop = null;
antlr.stringtemplate.language.StringTemplateAST i3 = null;
antlr.stringtemplate.language.StringTemplateAST i = null;
antlr.stringtemplate.language.StringTemplateAST s = null;
antlr.stringtemplate.language.StringTemplateAST at = null;
Object obj = null;
String propName = null;
Object e = null;
try { // for error handling
if (null == _t)
_t = ASTNULL;
switch ( _t.Type )
{
case DOT:
{
AST __t33 = _t;
antlr.stringtemplate.language.StringTemplateAST tmp6_AST_in = (_t==ASTNULL) ? null : (antlr.stringtemplate.language.StringTemplateAST)_t;
match((AST)_t,DOT);
_t = _t.getFirstChild();
obj=expr(_t);
_t = retTree_;
{
if (null == _t)
_t = ASTNULL;
switch ( _t.Type )
{
case ID:
{
prop = (_t==ASTNULL) ? null : (antlr.stringtemplate.language.StringTemplateAST)_t;
match((AST)_t,ID);
_t = _t.getNextSibling();
propName = prop.getText();
break;
}
case VALUE:
{
AST __t35 = _t;
antlr.stringtemplate.language.StringTemplateAST tmp7_AST_in = (_t==ASTNULL) ? null : (antlr.stringtemplate.language.StringTemplateAST)_t;
match((AST)_t,VALUE);
_t = _t.getFirstChild();
e=expr(_t);
_t = retTree_;
_t = __t35;
_t = _t.getNextSibling();
if (e!=null) {propName=e.ToString();}
break;
}
default:
{
throw new NoViableAltException(_t);
}
}
}
_t = __t33;
_t = _t.getNextSibling();
value = chunk.getObjectProperty(self,obj,propName);
break;
}
case ID:
{
i3 = (_t==ASTNULL) ? null : (antlr.stringtemplate.language.StringTemplateAST)_t;
match((AST)_t,ID);
_t = _t.getNextSibling();
value=self.getAttribute(i3.getText());
break;
}
case INT:
{
i = (_t==ASTNULL) ? null : (antlr.stringtemplate.language.StringTemplateAST)_t;
match((AST)_t,INT);
_t = _t.getNextSibling();
value=Int32.Parse(i.getText());
break;
}
case STRING:
{
s = (_t==ASTNULL) ? null : (antlr.stringtemplate.language.StringTemplateAST)_t;
match((AST)_t,STRING);
_t = _t.getNextSibling();
value=s.getText();
break;
}
case ANONYMOUS_TEMPLATE:
{
at = (_t==ASTNULL) ? null : (antlr.stringtemplate.language.StringTemplateAST)_t;
match((AST)_t,ANONYMOUS_TEMPLATE);
_t = _t.getNextSibling();
value=at.getText();
if ( at.getText()!=null ) {
StringTemplate valueST =new StringTemplate(self.getGroup(), at.getText());
valueST.setEnclosingInstance(self);
valueST.setName("<anonymous template argument>");
value = valueST;
}
break;
}
default:
{
throw new NoViableAltException(_t);
}
}
}
catch (RecognitionException ex)
{
reportError(ex);
if (null != _t)
{
_t = _t.getNextSibling();
}
}
retTree_ = _t;
return value;
}
/// <summary>
/// Evaluate an argument list within the context of the enclosing
/// template but store the values in the context of self, the
/// new embedded template. For example, bold(item=item) means
/// that bold.item should get the value of enclosing.item.
/// </summary>
protected internal virtual void evaluateArguments(StringTemplate self)
{
StringTemplateAST argumentsAST = self.getArgumentsAST();
if (argumentsAST == null || argumentsAST.getFirstChild() == null)
{
// return immediately if missing tree or no actual args
return ;
}
// Evaluate args in the context of the enclosing template, but we
// need the predefined args like 'it', 'attr', and 'i' to be
// available as well so we put a dummy ST between the enclosing
// context and the embedded context. The dummy has the predefined
// context as does the embedded.
StringTemplate enclosing = self.getEnclosingInstance();
StringTemplate argContextST = new StringTemplate(self.getGroup(), "");
argContextST.setName("<invoke "+self.getName()+" arg context>");
argContextST.setEnclosingInstance(enclosing);
argContextST.setArgumentContext(self.getArgumentContext());
ActionEvaluator eval = new ActionEvaluator(argContextST, this, null);
try
{
// using any initial argument context (such as when obj is set),
// evaluate the arg list like bold(item=obj). Since we pass
// in any existing arg context, that context gets filled with
// new values. With bold(item=obj), context becomes:
// {[obj=...],[item=...]}.
IDictionary ac = eval.argList(argumentsAST, self, self.getArgumentContext());
self.setArgumentContext(ac);
}
catch (RecognitionException re)
{
self.error("can't evaluate tree: " + argumentsAST.ToStringList(), re);
}
}
// HELP ROUTINES CALLED BY EVALUATOR TREE WALKER
public virtual Object applyListOfAlternatingTemplates(StringTemplate self, Object attributeValue, IList templatesToApply)
{
if (attributeValue == null || templatesToApply == null || templatesToApply.Count == 0) {
return null; // do not apply if missing templates or empty value
}
StringTemplate embedded = null;
IDictionary argumentContext = null;
// normalize collections and such to use iterators
// anything iteratable can be used for "APPLY"
attributeValue = convertAnythingIteratableToIterator(attributeValue);
if (attributeValue is IEnumerator) {
IList resultVector = new ArrayList();
IEnumerator iter = (IEnumerator) attributeValue;
int i = 0;
while (iter.MoveNext()) {
Object ithValue = iter.Current;
if (ithValue == null) {
// weird...a null value in the list; ignore
continue;
}
// rotate through
int templateIndex = i % templatesToApply.Count;
embedded = (StringTemplate) templatesToApply[templateIndex];
// template to apply is an actual StringTemplate (created in
// eval.g), but that is used as the examplar. We must create
// a new instance of the embedded template to apply each time
// to get new attribute sets etc...
StringTemplateAST args = embedded.getArgumentsAST();
embedded = embedded.getInstanceOf(); // make new instance
embedded.setEnclosingInstance(self);
embedded.setArgumentsAST(args);
argumentContext = new Hashtable();
argumentContext[DEFAULT_ATTRIBUTE_NAME] = ithValue;
argumentContext[DEFAULT_ATTRIBUTE_NAME_DEPRECATED] = ithValue;
argumentContext[DEFAULT_INDEX_VARIABLE_NAME] = i + 1;
embedded.setArgumentContext(argumentContext);
evaluateArguments(embedded);
/*
System.err.println("i="+i+": applyTemplate("+embedded.getName()+
", args="+argumentContext+
" to attribute value "+ithValue);
*/
resultVector.Add(embedded);
i++;
}
return resultVector;
}
else {
/*
Console.WriteLine("setting attribute "+DefaultAttributeName+" in arg context of "+
embedded.getName()+
" to "+attributeValue);
*/
embedded = (StringTemplate) templatesToApply[0];
argumentContext = new Hashtable();
argumentContext[DEFAULT_ATTRIBUTE_NAME] = attributeValue;
argumentContext[DEFAULT_ATTRIBUTE_NAME_DEPRECATED] = attributeValue;
argumentContext[DEFAULT_INDEX_VARIABLE_NAME] = 1;
embedded.setArgumentContext(argumentContext);
evaluateArguments(embedded);
return embedded;
}
}
protected void setSoleFormalArgumentToIthValue(StringTemplate embedded, IDictionary argumentContext, Object ithValue)
{
IDictionary formalArgs = embedded.getFormalArguments();
if ( formalArgs!=null )
{
String soleArgName = null;
bool isAnonymous = embedded.getName().Equals(StringTemplate.ANONYMOUS_ST_NAME);
if ( formalArgs.Count==1 || (isAnonymous&&formalArgs.Count>0) )
{
if ( isAnonymous && formalArgs.Count>1 )
{
embedded.error("too many arguments on {...} template: "+formalArgs);
}
// if exactly 1 arg or anonymous, give that the value of
// "it" as a convenience like they said
// $list:template(arg=it)$
ICollection argNames = formalArgs.Keys;
string[] argNamesArray = new string[argNames.Count];
argNames.CopyTo(argNamesArray,0);
soleArgName = argNamesArray[0];
argumentContext[soleArgName] = ithValue;
}
}
}
/// <summary>Call a string template with args and return result. Do not convert
/// to a string yet. It may need attributes that will be available after
/// this is inserted into another template.
/// </summary>
public virtual StringTemplate getTemplateInclude(StringTemplate enclosing, String templateName, StringTemplateAST argumentsAST)
{
StringTemplateGroup group = enclosing.getGroup();
StringTemplate embedded = group.getEmbeddedInstanceOf(enclosing, templateName);
if (embedded == null)
{
enclosing.error("cannot make embedded instance of " + templateName + " in template " + enclosing.getName());
return null;
}
embedded.setArgumentsAST(argumentsAST);
evaluateArguments(embedded);
return embedded;
}
public virtual StringTemplate getEmbeddedInstanceOf(StringTemplate enclosingInstance, String name)
{
StringTemplate st = getInstanceOf(name);
st.setEnclosingInstance(enclosingInstance);
return st;
}
/// <summary>How to spit out an object. If it's not a StringTemplate nor a
/// List, just do o.toString(). If it's a StringTemplate,
/// do o.write(out). If it's a Vector, do a write(out,
/// o.elementAt(i)) for all elements. Note that if you do
/// something weird like set the values of a multivalued tag
/// to be vectors, it will effectively flatten it.
///
/// If self is an embedded template, you might have specified
/// a separator arg; used when is a vector.
/// </summary>
public virtual int writeAttribute(StringTemplate self, Object o, StringTemplateWriter outWriter)
{
Object separator = null;
if (options != null)
{
separator = options["separator"];
}
return write(self, o, outWriter, separator);
}
public override String ToString()
{
System.Text.StringBuilder buf = new System.Text.StringBuilder();
IEnumerator iter = templates.Keys.GetEnumerator();
buf.Append("group " + getName() + ";\n");
StringTemplate formalArgs = new StringTemplate("$args;separator=\",\"$");
while (iter.MoveNext())
{
String tname = (String) iter.Current;
StringTemplate st = (StringTemplate) templates[tname];
if (st != NOT_FOUND_ST)
{
formalArgs = formalArgs.getInstanceOf();
formalArgs.setAttribute("args", st.getFormArguments());
buf.Append(tname + "(" + formalArgs + ") ::= ");
buf.Append("<<");
buf.Append(st.getTemplate());
buf.Append(">>\n");
}
}
return buf.ToString();
}
protected internal virtual void evaluateArguments(StringTemplate self)
{
StringTemplateAST argumentsAST = self.getArgumentsAST();
if (argumentsAST == null || argumentsAST.getFirstChild() == null)
{
// return immediately if missing tree or no actual args
return ;
}
ActionEvaluator eval = new ActionEvaluator(self, this, null);
try
{
// using any initial argument context (such as when obj is set),
// evaluate the arg list like bold(item=obj). Since we pass
// in any existing arg context, that context gets filled with
// new values. With bold(item=obj), context becomes:
// {[obj=...],[item=...]}.
IDictionary ac = eval.argList(argumentsAST, self.getArgumentContext());
self.setArgumentContext(ac);
}
catch (RecognitionException re)
{
self.error("can't evaluate tree: " + argumentsAST.ToStringList(), re);
}
}
public StringRef(StringTemplate enclosingTemplate, String str)
: base(enclosingTemplate)
{
this.str = str;
}
public ASTExpr(StringTemplate enclosingTemplate, AST exprTree, IDictionary options)
: base(enclosingTemplate)
{
this.exprTree = exprTree;
this.options = options;
}
/// <summary>Find "missing attribute" and "cardinality mismatch" errors.
/// Excecuted before a template writes its chunks out.
/// When you find a problem, throw an IllegalArgumentException.
/// We must check the attributes as well as the incoming arguments
/// in argumentContext.
/// protected void checkAttributesAgainstFormalArguments() {
/// Set args = formalArguments.keySet();
/// /*
/// if ( (attributes==null||attributes.size()==0) &&
/// (argumentContext==null||argumentContext.size()==0) &&
/// formalArguments.size()!=0 )
/// {
/// throw new IllegalArgumentException("missing argument(s): "+args+" in template "+getName());
/// }
/// Iterator iter = args.iterator();
/// while ( iter.hasNext() ) {
/// String argName = (String)iter.next();
/// FormalArgument arg = getFormalArgument(argName);
/// int expectedCardinality = arg.getCardinality();
/// Object value = getAttribute(argName);
/// int actualCardinality = getActualArgumentCardinality(value);
/// // if intersection of expected and actual is empty, mismatch
/// if ( (expectedCardinality&actualCardinality)==0 ) {
/// throw new IllegalArgumentException("cardinality mismatch: "+
/// argName+"; expected "+
/// FormalArgument.getCardinalityName(expectedCardinality)+
/// " found cardinality="+getObjectLength(value));
/// }
/// }
/// }
/// </summary>
/// <summary>A reference to an attribute with no value, must be compared against
/// the formal parameter to see if it exists; if it exists all is well,
/// but if not, throw an exception.
///
/// Don't do the check if no formal parameters exist for this template;
/// ask enclosing.
/// </summary>
protected internal virtual void checkNullAttributeAgainstFormalArguments(StringTemplate self, String attribute)
{
if (self.getFormArguments() == FormalArgument.UNKNOWN)
{
// bypass unknown arg lists
if (self.enclosingInstance != null)
{
checkNullAttributeAgainstFormalArguments(self.enclosingInstance, attribute);
}
return ;
}
FormalArgument formalArg = lookupFormalArgument(attribute);
if (formalArg == null)
{
throw new ArgumentOutOfRangeException("attribute", "no such attribute: " + attribute);
}
}