X-Git-Url: http://git.megacz.com/?p=org.ibex.core.git;a=blobdiff_plain;f=src%2Forg%2Fxwt%2FTemplate.java;h=2cc62420e61021993a5953448a3eb93b2588140c;hp=4cbf5e46a745777fc2007085fa82b9cdf1f07cb1;hb=16c24a73c1c1b2955db0bbbaf5a940215329bca1;hpb=a060cc5025b58e8d3e319aefa6ae44fe7c6182ad
diff --git a/src/org/xwt/Template.java b/src/org/xwt/Template.java
index 4cbf5e4..2cc6242 100644
--- a/src/org/xwt/Template.java
+++ b/src/org/xwt/Template.java
@@ -1,4 +1,4 @@
-// Copyright 2003 Adam Megacz, see the COPYING file for licensing [GPL]
+// Copyright 2004 Adam Megacz, see the COPYING file for licensing [GPL]
package org.xwt;
import java.io.*;
@@ -6,6 +6,7 @@ import java.util.zip.*;
import java.util.*;
import java.lang.*;
import org.xwt.js.*;
+import org.xwt.translators.*;
import org.xwt.util.*;
/**
@@ -25,22 +26,16 @@ public class Template {
// 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
-
- 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 JSScope staticJSScope = 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
+ 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 String[] urikeys;
+ private String[] urivals;
+ private Vec children = new Vec(); ///< during XML parsing, this holds the list of currently-parsed children; null otherwise
+ private JS script = null; ///< the script on this node
+ Template prev;
+ JSScope staticScope = null; ///< the scope in which the static block is executed
// Only used during parsing /////////////////////////////////////////////////////////////////
@@ -48,233 +43,205 @@ public class Template {
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 content
private int startLine = -1; ///< the line number that this element starts on
- private final Res r; ///< the resource we came from
+ private XWT xwt;
// Static data/methods ///////////////////////////////////////////////////////////////////
- public static Template getTemplate(Res r) {
- try {
- r = r.addExtension(".xwt");
- if (r.t != null) return r.t;
- r.t = new Template(r);
- try { new TemplateHelper().parseit(r.getInputStream(), r.t); }
- catch (FileNotFoundException e) { Log.log(Template.class, "template not found: "+r); }
- return r.t;
- } catch (Exception e) {
- if (Log.on) Log.log(r.t == null ? "null" : r.t.fileName, e);
- return null;
- }
- }
-
- public static Res resolveStringToResource(String str, XWT xwt, boolean permitAbsolute) {
- // URL
- if (str.indexOf("://") != -1) {
- try {
- if (permitAbsolute) return (Res)xwt.callMethod("res.url", str, null, null, null, 1);
- } catch (JSExn jse) {
- throw new Error("this should never happen");
- }
- Log.log(Template.class, "absolute URL " + str + " not permitted here");
- return null;
- }
-
- // root-relative
- Res 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 = (Res)ret.get(str);
- return ret;
- }
-
+ // for non-root nodes
+ private Template(Template t, int startLine) { prev = t; this.xwt = t.xwt; this.startLine = startLine; }
+ private Template(XWT xwt) { this.xwt = xwt; }
+
// Methods to apply templates ////////////////////////////////////////////////////////
- private Template(Res 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 */
- JSScope getStatic() {
- if (staticJSScope == null) staticJSScope = new JSScope(null);
- if (staticscript == null) return staticJSScope;
- JSFunction temp = staticscript;
- staticscript = null;
- try {
- temp.cloneWithNewParentScope(staticJSScope).call(null, null, null, null, 0);
- } catch (JSExn jse) {
- throw new Error("this should never happen");
- }
- return staticJSScope;
- }
-
+
/** Applies the template to Box b
* @param pboxes a vector of all box parents on which to put $-references
* @param ptemplates a vector of the fileNames to recieve private references on the pboxes
*/
- void apply(Box b, XWT xwt) throws JSExn { apply(b, xwt, null); }
- void apply(Box b, XWT xwt, PerInstantiationJSScope parentPis) throws JSExn {
+ void apply(Box b) throws JSExn {
+ try {
+ apply(b, null);
+ } catch (IOException e) {
+ b.clear(b.VISIBLE);
+ b.mark_for_repack();
+ Log.warn(this, e);
+ throw new JSExn(e.toString());
+ } catch (JSExn e) {
+ b.clear(b.VISIBLE);
+ b.mark_for_repack();
+ Log.warn(this, e);
+ throw e;
+ }
+ }
- getStatic();
+ private void apply(Box b, PerInstantiationScope parentPis) throws JSExn, IOException {
+ if (prev != null) prev.apply(b, null);
+ // FIXME this dollar stuff is all wrong
if (id != null) parentPis.putDollar(id, b);
- for(int i=0; i 0) {
+ switch (((String)val).charAt(0)) {
+ case '$':
+ val = pis.get(val);
+ if (val == null) throw new JSExn("unknown box id '"+vals[i]+"' referenced in XML attribute");
+ break;
+ case '.':
+ val = xwt.resolveString(((String)val).substring(1), false);
+ // FIXME: url case
+ // FIXME: should we be resolving all of these in the XML-parsing code?
+ }
}
- else if (keys[i] != null) b.putAndTriggerTraps(keys[i], vals[i]);
+
+ b.putAndTriggerTraps(key, val);
+ }
}
// XML Parsing /////////////////////////////////////////////////////////////////
+ public static Template buildTemplate(InputStream is, XWT xwt) {
+ try {
+ return new TemplateHelper(is, xwt).t;
+ } catch (Exception e) {
+ Log.error(Template.class, e);
+ return null;
+ }
+ }
+
/** handles XML parsing; builds a Template tree as it goes */
static final class TemplateHelper extends XML {
- TemplateHelper() { }
-
- private int state;
+ private int state = STATE_INITIAL;
private static final int STATE_INITIAL = 0;
private static final int STATE_IN_XWT_NODE = 1;
- private static final int STATE_IN_TEMPLATE_NODE = 2;
- private static final int STATE_FINISHED_TEMPLATE_NODE = 3;
+ private static final int STATE_IN_TEMPLATE_NODE = 2;
+ private static final int STATE_IN_META_NODE = 3;
- private String nameOfHeaderNodeBeingProcessed;
+ StringBuffer static_content = null;
+ int static_content_start = 0;
+ Vec nodeStack = new Vec();
+ Template t = null;
+ int meta = 0;
+ XWT xwt;
- Vec nodeStack = new Vec(); ///< stack of Templates whose XML elements we have seen open-tags for but not close-tags
- Template t = null; ///< the template we're currently working on
+ public TemplateHelper(InputStream is, XWT xwt) throws XML.Exn, IOException, JSExn {
+ this.xwt = xwt;
+ parse(new InputStreamReader(is));
+ JS staticScript = parseScript(static_content, static_content_start);
+ t.staticScope = new PerInstantiationScope(null, xwt, null, null);
+ if (staticScript != null) JS.cloneWithNewParentScope(staticScript, t.staticScope).call(null, null, null, null, 0);
+ }
- /** parse an XML input stream, building a Template tree off of root */
- void parseit(InputStream is, Template root) throws XML.XMLException, IOException {
- state = STATE_INITIAL;
- nameOfHeaderNodeBeingProcessed = null;
- nodeStack.setSize(0);
- t = root;
- parse(new InputStreamReader(is));
+ private JS parseScript(StringBuffer content, int content_start) throws IOException {
+ if (content == null) return null;
+ String contentString = content.toString();
+ if (contentString.trim().length() > 0) return JS.fromReader("FIXME", content_start, new StringReader(contentString));
+ return null;
}
- 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 ");
- if (c.len != 0) throw new XML.SchemaException("root element must not have attributes");
- 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")) {
- // FEATURE
- } else if (c.localName.equals("static")) {
- if (t.staticscript != null)
- throw new XML.SchemaException("the header node may not appear more than once");
- if (c.len > 0)
- throw new XML.SchemaException("the node may not have attributes");
- } else if (c.localName.equals("template")) {
- t.startLine = getLine();
+ case STATE_IN_META_NODE: { meta++; return; }
+ case STATE_INITIAL:
+ if (!"ibex".equals(c.getLocalName()))
+ throw new XML.Exn("root element was not ", 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 ("meta".equals(c.getPrefix())) { state = STATE_IN_META_NODE; meta = 0; return; }
state = STATE_IN_TEMPLATE_NODE;
- processBodyElement(c);
- } else {
- throw new XML.SchemaException("unrecognized header node \"" + c.localName + "\"");
- }
- return;
-
- case STATE_IN_TEMPLATE_NODE:
- // push the last node we were in onto the stack
- nodeStack.addElement(t);
- // 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);
- // 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 node");
+ t = (t == null) ? new Template(xwt) : new Template(t, getLine());
+ break;
+ case STATE_IN_TEMPLATE_NODE:
+ nodeStack.addElement(t);
+ t = new Template(xwt);
+ break;
}
- }
-
- private void processBodyElement(XML.Element c) {
- Hash h = new Hash(c.len * 2, 3);
-
- // WARNING: c.keys.length != c.len; USE c.len
- for(int i=0; i0; 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]);
- }
+
+ Hash urimap = c.getUriMap();
+ t.urikeys = new String[urimap.size()];
+ t.urivals = new String[urimap.size()];
+ Enumeration uriEnumeration = urimap.keys();
+ int ii = 0;
+ while(uriEnumeration.hasMoreElements()) {
+ String key = (String)uriEnumeration.nextElement();
+ String val = (String)urimap.get(key);
+ t.urikeys[ii] = key;
+ if (val.charAt(0) == '.') val = val.substring(1);
+ t.urivals[ii] = val;
+ ii++;
+ }
+
+ 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 "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 0)
- thisscript = JSFunction.fromReader(t.fileName + (isstatic ? "._" : ""),
- t.content_start,
- new StringReader(contentString));
- } catch (IOException ioe) {
- if (Log.on) Log.log(this, " ERROR: " + ioe.getMessage());
- thisscript = null;
- }
- t.content = null;
- t.content_start = 0;
- return thisscript;
- }
-
- public void endElement(XML.Element c) throws XML.SchemaException {
- if (state == STATE_IN_XWT_NODE) {
- if ("static".equals(nameOfHeaderNodeBeingProcessed) && t.content != null) t.staticscript = parseScript(true);
- nameOfHeaderNodeBeingProcessed = null;
-
- } else if (state == STATE_IN_TEMPLATE_NODE) {
- if (t.content != null) t.script = parseScript(false);
- if (nodeStack.size() == 0) {
- //
- state = STATE_FINISHED_TEMPLATE_NODE;
-
- } else {
- // add this template as a child of its parent
+ public void endElement(XML.Element c) throws XML.Exn, IOException {
+ switch(state) {
+ case STATE_IN_META_NODE: if (meta-- < 0) state = STATE_IN_XWT_NODE; return;
+ case STATE_IN_XWT_NODE: return;
+ case STATE_IN_TEMPLATE_NODE: {
+ if (t.content != null) { t.script = parseScript(t.content, t.content_start); t.content = null; }
+ if (nodeStack.size() == 0) { state = STATE_IN_XWT_NODE; return; }
Template oldt = t;
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 {
- // 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");
-
- if ("static".equals(nameOfHeaderNodeBeingProcessed) || state == STATE_IN_TEMPLATE_NODE) {
- if (t.content == null) {
- t.content_start = getLine();
- t.content = new StringBuffer();
- }
-
- t.content.append(ch, start, length);
+ }
- } else if (nameOfHeaderNodeBeingProcessed != null && state != STATE_FINISHED_TEMPLATE_NODE) {
- throw new XML.SchemaException("header node <" + nameOfHeaderNodeBeingProcessed + "> cannot have text content");
+ public void characters(char[] ch, int start, int length) throws XML.Exn {
+ 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()+")");
+ switch(state) {
+ case STATE_IN_TEMPLATE_NODE:
+ if (t.content == null) {
+ t.content_start = getLine();
+ t.content = new StringBuffer();
+ }
+ t.content.append(ch, start, length);
+ return;
+ case STATE_IN_XWT_NODE:
+ if (static_content == null) {
+ static_content_start = getLine();
+ static_content = new StringBuffer();
+ }
+ static_content.append(ch, start, length);
+ return;
}
}
- 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 PerInstantiationJSScope extends JSScope {
+ private static class PerInstantiationScope extends JSScope {
XWT xwt = null;
- PerInstantiationJSScope parentBoxPis = null;
+ PerInstantiationScope 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 PerInstantiationJSScope(JSScope parentScope, XWT xwt, PerInstantiationJSScope parentBoxPis, JSScope myStatic) {
+ public PerInstantiationScope(JSScope parentScope, XWT xwt, PerInstantiationScope parentBoxPis, JSScope myStatic) {
super(parentScope);
this.parentBoxPis = parentBoxPis;
this.xwt = xwt;
@@ -379,13 +325,10 @@ public class Template {
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.get("");
if (key.equals("static")) return myStatic;
return super.get(key);
}
- public void put(Object key, Object val) throws JSExn {
- if (super.has(key)) super.put(key, val);
- else super.put(key, val);
- }
}
}