import java.util.*;
import java.lang.*;
import org.xwt.js.*;
+import org.xwt.translators.*;
import org.xwt.util.*;
/**
// Instance Members ///////////////////////////////////////////////////////
- String id = null; ///< the id of this box
- String redirect = null; ///< the id of the redirect target; only meaningful on a root node
- private String[] keys; ///< keys to be "put" to instances of this template; elements correspond to those of vals
- private Object[] vals; ///< values to be "put" to instances of this template; elements correspond to those of keys
- private Vec children = new Vec(); ///< during XML parsing, this holds the list of currently-parsed children; null otherwise
- private int numunits = -1; ///< see numUnits(); -1 means that this value has not yet been computed
+ String id = null; ///< the id of this box
+ String redirect = null; ///< the id of the redirect target; only meaningful on a root node
+ private String[] keys; ///< keys to be "put" to instances of this template; elements correspond to those of vals
+ private Object[] vals; ///< values to be "put" to instances of this template; elements correspond to those of keys
+ private Vec children = new Vec(); ///< during XML parsing, this holds the list of currently-parsed children; null otherwise
+ private int numunits = -1; ///< see numUnits(); -1 means that this value has not yet been computed
- private Function script = null; ///< the script on this node
- private String fileName = "unknown"; ///< the filename this node came from; used only for debugging
- private Vec preapply = new Vec(); ///< templates that should be preapplied (in the order of application)
+ private JSFunction script = null; ///< the script on this node
+ private String fileName = "unknown"; ///< the filename this node came from; used only for debugging
+ private Vec preapply = new Vec(); ///< templates that should be preapplied (in the order of application)
// Instance Members that are only meaningful on root Template //////////////////////////////////////
- private JS.Scope staticScope = null; ///< the scope in which the static block is executed
- private Function staticscript = null; ///< the script on the static node of this template, null already performed
+ private JSScope staticScope = null; ///< the scope in which the static block is executed
+ private JSFunction staticscript = null; ///< the script on the static node of this template, null already performed
// Only used during parsing /////////////////////////////////////////////////////////////////
- private StringBuffer content = null; ///< during XML parsing, this holds partially-read character data; null otherwise
- private int content_start = 0; ///< line number of the first line of <tt>content</tt>
- private int content_lines = 0; ///< number of lines in <tt>content</tt>
- private int startLine = -1; ///< the line number that this element starts on
- private final Res r; ///< the resource we came from
+ private StringBuffer content = null; ///< during XML parsing, this holds partially-read character data; null otherwise
+ private int content_start = 0; ///< line number of the first line of <tt>content</tt>
+ private int startLine = -1; ///< the line number that this element starts on
+ private final Stream r; ///< the resource we came from
// Static data/methods ///////////////////////////////////////////////////////////////////
- public static Template getTemplate(Res r) {
+ // FIXME need to provide the XWT object too
+ public static Template getTemplate(Stream r) throws JSExn {
try {
r = r.addExtension(".xwt");
if (r.t != null) return r.t;
new TemplateHelper().parseit(r.getInputStream(), r.t);
return r.t;
} catch (Exception e) {
- if (Log.on) Log.log(r.t.fileName, e);
- return null;
+ throw new JSExn("Error reading template stream: " + r + "\n" + e.toString());
}
}
- public static Res resolveStringToResource(String str, XWT xwt, boolean permitAbsolute) {
+ public static Stream resolveStringToResource(String str, XWT xwt, boolean permitAbsolute) throws JSExn {
// URL
if (str.indexOf("://") != -1) {
- if (permitAbsolute) return Res.stringToRes(str);
- Log.log(Template.class, "absolute URL " + str + " not permitted here");
- return null;
+ if (permitAbsolute) return (Stream)xwt.url2res(str);
+ throw new JSExn("absolute URL " + str + " not permitted here");
}
// root-relative
- Res ret = xwt.rr;
+ Stream ret = xwt.rr;
while(str.indexOf('.') != -1) {
String path = str.substring(0, str.indexOf('.'));
str = str.substring(str.indexOf('.') + 1);
- ret = (Res)ret.get(path);
+ ret = (Stream)ret.get(path);
}
- ret = (Res)ret.get(str);
+ ret = (Stream)ret.get(str);
return ret;
}
// Methods to apply templates ////////////////////////////////////////////////////////
- private Template(Res r) { this.r = r; }
+ private Template(Stream r) {
+ this.r = r;
+ String f = r.toString();
+ if (f != null && !f.equals(""))
+ fileName = f.substring(f.lastIndexOf('/')+1, f.endsWith(".xwt") ? f.length() - 4 : f.length());
+ }
/** called before this template is applied or its static object can be externally referenced */
- JS.Scope getStatic() {
- if (staticScope == null) staticScope = new JS.Scope(null);
+ JSScope getStatic(XWT xwt) throws JSExn {
+ if (staticScope == null) staticScope = new PerInstantiationJSScope(null, xwt, null, null);
if (staticscript == null) return staticScope;
- Function temp = staticscript;
+ JSFunction temp = staticscript;
staticscript = null;
- new JS.Context(temp, staticScope).resume();
+ temp.cloneWithNewParentScope(staticScope).call(null, null, null, null, 0);
return staticScope;
}
* @param pboxes a vector of all box parents on which to put $-references
* @param ptemplates a vector of the fileNames to recieve private references on the pboxes
*/
- void apply(Box b, JS.Callable c, XWT xwt) { apply(b, c, xwt, null); }
- void apply(Box b, JS.Callable callback, XWT xwt, PerInstantiationScope parentPis) {
+ void apply(Box b, XWT xwt) throws JSExn {
+ try {
+ apply(b, xwt, null);
+ } catch (JSExn e) {
+ b.clear(b.VISIBLE);
+ b.mark_for_repack();
+ throw e;
+ }
+ }
+
- getStatic();
+ private void apply(Box b, XWT xwt, PerInstantiationJSScope parentPis) throws JSExn {
+ getStatic(xwt);
if (id != null) parentPis.putDollar(id, b);
for(int i=0; i<preapply.size(); i++) {
Template t = getTemplate(resolveStringToResource((String)preapply.elementAt(i), xwt, false));
if (t == null) throw new RuntimeException("unable to resolve resource " + preapply.elementAt(i));
- t.apply(b, callback, xwt);
+ t.apply(b, xwt);
}
- PerInstantiationScope pis = new PerInstantiationScope(b, xwt, parentPis, staticScope);
+ PerInstantiationJSScope pis = new PerInstantiationJSScope(b, xwt, parentPis, staticScope);
+
for (int i=0; children != null && i<children.size(); i++) {
Box kid = new Box();
- ((Template)children.elementAt(i)).apply(kid, callback, xwt, pis);
-
- // FIXME: tailcall?
- b.put(b.numChildren(), kid);
+ ((Template)children.elementAt(i)).apply(kid, xwt, pis);
+ b.putAndTriggerTraps(b.get("numchildren"), kid);
}
- if (script != null) new JS.Context(script, pis).resume();
+ if (script != null) script.cloneWithNewParentScope(pis).call(null, null, null, null, 0);
+
+ Object key, val;
+ for(int i=0; keys != null && i < keys.length; i++) {
+ if (keys[i] == null) continue;
+ key = keys[i];
+ val = vals[i];
+
+ if ("null".equals(val)) val = null;
- for(int i=0; keys != null && i<keys.length; i++)
- if (vals[i] instanceof String && ((String)vals[i]).charAt(0) == '$') b.put(keys[i], pis.get(vals[i]));
- else if ("image".equals(keys[i])) b.put("image", resolveStringToResource((String)vals[i], xwt, true));
- else if (keys[i] != null) b.put(keys[i], vals[i]);
+ if (val != null && val instanceof String && ((String)val).length() > 0) {
+ switch (((String)val).charAt(0)) {
+ case '$':
+ val = pis.get(val);
+ if (val == null) throw new JSExn("unknown box id '"+vals[i]+"' referenced in XML attribute");
+ break;
+ case '.':
+ val = resolveStringToResource(((String)val).substring(1), xwt, true);
+ }
+ }
+
+ if (val != null && "redirect".equals(key)) {
+ val = pis.get("$"+val);
+ if (val == null) throw new JSExn("redirect target '"+vals[i]+"' not found");
+ }
+
+ try {
+ b.putAndTriggerTraps(key, val);
+ } catch(JSExn e) {
+ e.addBacktrace(fileName + ":attr-" + key,0);
+ throw e;
+ }
+ }
}
Template t = null; ///< the template we're currently working on
/** parse an XML input stream, building a Template tree off of <tt>root</tt> */
- void parseit(InputStream is, Template root) throws XML.XMLException, IOException {
+ void parseit(InputStream is, Template root) throws XML.Exn, IOException {
state = STATE_INITIAL;
nameOfHeaderNodeBeingProcessed = null;
nodeStack.setSize(0);
parse(new InputStreamReader(is));
}
- public void startElement(XML.Element c) throws XML.SchemaException {
+ public void startElement(XML.Element c) throws XML.Exn {
switch(state) {
case STATE_INITIAL:
- if (!"xwt".equals(c.localName)) throw new XML.SchemaException("root element was not <xwt>");
- if (c.len != 0) throw new XML.SchemaException("root element must not have attributes");
+ if (!"xwt".equals(c.getLocalName()))
+ throw new XML.Exn("root element was not <xwt>", XML.Exn.SCHEMA, getLine(), getCol());
+ if (c.getAttrLen() != 0)
+ throw new XML.Exn("root element must not have attributes", XML.Exn.SCHEMA, getLine(), getCol());
state = STATE_IN_XWT_NODE;
return;
case STATE_IN_XWT_NODE:
- if (nameOfHeaderNodeBeingProcessed != null) throw new XML.SchemaException("can't nest header nodes");
- nameOfHeaderNodeBeingProcessed = c.localName;
- if (c.localName.equals("doc")) {
- // FIXME: ignore
- } else if (c.localName.equals("static")) {
+ if (nameOfHeaderNodeBeingProcessed != null)
+ throw new XML.Exn("can't nest header nodes", XML.Exn.SCHEMA, getLine(), getCol());
+ nameOfHeaderNodeBeingProcessed = c.getLocalName();
+ //#switch(c.getLocalName())
+ case "doc":
+ // FEATURE
+ return;
+ case "static":
if (t.staticscript != null)
- throw new XML.SchemaException("the <static> header node may not appear more than once");
- if (c.len > 0)
- throw new XML.SchemaException("the <static> node may not have attributes");
- } else if (c.localName.equals("template")) {
+ throw new XML.Exn("the <static> header node may only appear once", XML.Exn.SCHEMA, getLine(), getCol());
+ if (c.getAttrLen() > 0)
+ throw new XML.Exn("the <static> node may not have attributes", XML.Exn.SCHEMA, getLine(), getCol());
+ return;
+ case "template":
t.startLine = getLine();
state = STATE_IN_TEMPLATE_NODE;
processBodyElement(c);
- } else {
- throw new XML.SchemaException("unrecognized header node \"" + c.localName + "\"");
- }
- return;
+ return;
+ //#end
+ throw new XML.Exn("unrecognized header node \"" + c.getLocalName() + "\"", XML.Exn.SCHEMA, getLine(), getCol());
case STATE_IN_TEMPLATE_NODE:
// push the last node we were in onto the stack
// instantiate a new node, and set its fileName/importlist/preapply
Template t2 = new Template(t.r);
t2.startLine = getLine();
- if (!c.localName.equals("box") && !c.localName.equals("template"))
- t2.preapply.addElement((c.uri == null ? "" : (c.uri + ".")) + c.localName);
+ if (!c.getLocalName().equals("box") && !c.getLocalName().equals("template"))
+ t2.preapply.addElement((c.getUri().equals("") ? "" : (c.getUri() + ".")) + c.getLocalName());
// make the new node the current node
t = t2;
processBodyElement(c);
return;
case STATE_FINISHED_TEMPLATE_NODE:
- throw new XML.SchemaException("no elements may appear after the <template> node");
+ throw new XML.Exn("no elements may appear after the <template> node", XML.Exn.SCHEMA, getLine(), getCol());
}
}
private void processBodyElement(XML.Element c) {
- Hash h = new Hash(c.len * 2, 3);
- for(int i=0; i<c.len; i++) {
- if (c.keys[i] == null) continue;
- if (c.keys[i].endsWith(":image")) {
- String uri = (String)c.urimap.get(c.keys[i].substring(0, c.keys[i].indexOf(':')));
- c.keys[i] = c.keys[i].substring(c.keys[i].lastIndexOf(':') + 1);
- c.vals[i] = uri + "." + c.vals[i];
- }
- if ((c.keys[i].equals("preapply") || c.keys[i].endsWith(":preapply")) && c.localName.equals("template")) {
- String uri = "";
- if (c.keys[i].endsWith(":preapply")) {
- uri = "." + c.urimap.get(c.keys[i].substring(0, c.keys[i].indexOf(':')));
- c.keys[i] = c.keys[i].substring(c.keys[i].lastIndexOf(':') + 1);
- }
- StringTokenizer tok = new StringTokenizer(c.vals[i].toString(), " ");
+ Vec keys = new Vec(c.getAttrLen());
+ Vec vals = new Vec(c.getAttrLen());
+
+ // process attributes into Vecs, dealing with any XML Namespaces in the process
+ ATTR: for (int i=0; i < c.getAttrLen(); i++) {
+ //#switch(c.getAttrKey(i))
+ case "preapply":
+ String uri = c.getAttrUri(i); if (!uri.equals("")) uri += ".";
+ StringTokenizer tok = new StringTokenizer(c.getAttrVal(i).toString(), " ");
while(tok.hasMoreTokens()) t.preapply.addElement(uri + tok.nextToken());
- c.keys[i] = c.keys[c.keys.length - 1];
- c.vals[i] = c.vals[c.vals.length - 1];
- i--;
- continue;
- }
- h.put(c.keys[i], c.vals[i]);
- }
- t.keys = new String[h.size()];
- t.vals = new Object[h.size()];
-
- Vec v = new Vec(h.size(), c.keys);
- v.sort(new Vec.CompareFunc() { public int compare(Object a, Object b) { return ((String)a).compareTo((String)b); } });
- for(int i=0; i<h.size(); i++) {
- if (c.keys[i].equals("thisbox")) {
- for(int j=i; j>0; j--) { t.keys[j] = t.keys[j - 1]; t.vals[j] = t.vals[j - 1]; }
- t.keys[0] = (String)v.elementAt(i);
- t.vals[0] = h.get(t.keys[0]);
- } else {
- t.keys[i] = (String)v.elementAt(i);
- t.vals[i] = h.get(t.keys[i]);
- }
+ continue ATTR;
+
+ case "id":
+ t.id = c.getAttrVal(i).toString().intern();
+ continue ATTR;
+ //#end
+
+ // treat value starting with '.' as resource reference
+ String uri = c.getAttrUri(i); if (!uri.equals("")) uri = '.' + uri;
+ keys.addElement(c.getAttrKey(i));
+ vals.addElement((c.getAttrVal(i).startsWith(".") ? uri : "") + c.getAttrVal(i));
}
- for(int i=0; i<t.keys.length; i++) {
- if (t.keys[i].equals("id")) {
- t.id = t.vals[i].toString().intern();
- t.keys[i] = null;
- continue;
- }
+ if (keys.size() == 0) return;
+
+ // sort the attributes lexicographically
+ Vec.sort(keys, vals, new Vec.CompareFunc() { public int compare(Object a, Object b) {
+ return ((String)a).compareTo((String)b);
+ } });
+
+ t.keys = new String[keys.size()];
+ t.vals = new Object[vals.size()];
+ keys.copyInto(t.keys);
+ vals.copyInto(t.vals);
+ // convert attributes to appropriate types and intern strings
+ for(int i=0; i<t.keys.length; i++) {
t.keys[i] = t.keys[i].intern();
String valString = t.vals[i].toString();
}
}
- private Function parseScript(boolean isstatic) {
- Function thisscript = null;
- try {
- thisscript = JS.parse(t.fileName + (isstatic ? "._" : ""), t.content_start, new StringReader(t.content.toString()));
- } catch (IOException ioe) {
- if (Log.on) Log.log(this, " ERROR: " + ioe.getMessage());
- thisscript = null;
- }
+ private JSFunction parseScript(boolean isstatic) throws IOException {
+ JSFunction thisscript = null;
+ String contentString = t.content.toString();
+ if (contentString.trim().length() > 0)
+ thisscript = JSFunction.fromReader(t.fileName + (isstatic ? "._" : ""),
+ t.content_start,
+ new StringReader(contentString));
t.content = null;
t.content_start = 0;
- t.content_lines = 0;
return thisscript;
}
- public void endElement(XML.Element c) throws XML.SchemaException {
+ public void endElement(XML.Element c) throws XML.Exn, IOException {
if (state == STATE_IN_XWT_NODE) {
if ("static".equals(nameOfHeaderNodeBeingProcessed) && t.content != null) t.staticscript = parseScript(true);
nameOfHeaderNodeBeingProcessed = null;
t = (Template)nodeStack.lastElement();
nodeStack.setSize(nodeStack.size() - 1);
t.children.addElement(oldt);
+
+ int oldt_lines = getLine() - oldt.startLine;
+ for (int i=0; oldt_lines > i; i++) t.content.append('\n');
}
}
}
- public void characters(char[] ch, int start, int length) throws XML.SchemaException {
+ public void characters(char[] ch, int start, int length) throws XML.Exn {
// invoke the no-tab crusade
- for (int i=0; length >i; i++) if (ch[start+i] == '\t') throw new XML.SchemaException(
- t.fileName+ ":" + getLine() + "," + getCol() + ": tabs are not allowed in XWT files");
+ for (int i=0; length >i; i++) if (ch[start+i] == '\t')
+ Log.error(Template.class, "tabs are not allowed in XWT files ("+getLine()+":"+getCol()+")");
if ("static".equals(nameOfHeaderNodeBeingProcessed) || state == STATE_IN_TEMPLATE_NODE) {
if (t.content == null) {
t.content_start = getLine();
- t.content_lines = 0;
t.content = new StringBuffer();
}
t.content.append(ch, start, length);
- t.content_lines++;
- } else if (nameOfHeaderNodeBeingProcessed != null && state != STATE_FINISHED_TEMPLATE_NODE) {
- throw new XML.SchemaException("header node <" + nameOfHeaderNodeBeingProcessed + "> cannot have text content");
+ } else if (nameOfHeaderNodeBeingProcessed != null && state != STATE_FINISHED_TEMPLATE_NODE) { throw new XML.Exn(
+ "header node <" +nameOfHeaderNodeBeingProcessed+ "> cannot have text content", XML.Exn.SCHEMA, getLine(), getCol());
}
}
- public void whitespace(char[] ch, int start, int length) throws XML.SchemaException { }
+ public void whitespace(char[] ch, int start, int length) throws XML.Exn { }
}
- private static class PerInstantiationScope extends JS.Scope {
+ private static class PerInstantiationJSScope extends JSScope {
XWT xwt = null;
- PerInstantiationScope parentBoxPis = null;
- JS.Scope myStatic = null;
- void putDollar(String key, Box target) {
+ PerInstantiationJSScope parentBoxPis = null;
+ JSScope myStatic = null;
+ void putDollar(String key, Box target) throws JSExn {
if (parentBoxPis != null) parentBoxPis.putDollar(key, target);
declare("$" + key);
put("$" + key, target);
}
- public PerInstantiationScope(Scope parentScope, XWT xwt, PerInstantiationScope parentBoxPis, JS.Scope myStatic) {
+ public PerInstantiationJSScope(JSScope parentScope, XWT xwt, PerInstantiationJSScope parentBoxPis, JSScope myStatic) {
super(parentScope);
this.parentBoxPis = parentBoxPis;
this.xwt = xwt;
this.myStatic = myStatic;
}
- public Object get(Object key) {
+ public Object get(Object key) throws JSExn {
if (super.has(key)) return super.get(key);
if (key.equals("xwt")) return xwt;
+ if (key.equals("")) return xwt.rr;
if (key.equals("static")) return myStatic;
return super.get(key);
}
- public Object put(Object key, Object val) {
- if (super.has(key)) return super.put(key, val);
- return super.put(key, val);
+ public void put(Object key, Object val) throws JSExn {
+ if (super.has(key)) super.put(key, val);
+ else super.put(key, val);
}
}
projects / org.ibex.core.git / blobdiff