X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;ds=sidebyside;f=src%2Forg%2Fxwt%2FTemplate.java;h=2cc62420e61021993a5953448a3eb93b2588140c;hb=16c24a73c1c1b2955db0bbbaf5a940215329bca1;hp=95846c1ce446f132c2be6b627c1401701191d223;hpb=8235361e8601ae7b36ab707058de3b52225d15a2;p=org.ibex.core.git
diff --git a/src/org/xwt/Template.java b/src/org/xwt/Template.java
index 95846c1..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.*;
/**
@@ -21,316 +22,226 @@ import org.xwt.util.*;
* See the XWT reference for information on the order in which
* templates are applied, attributes are put, and scripts are run.
*/
-
-// FIXME imports
public class Template {
// Instance Members ///////////////////////////////////////////////////////
- /** the id of this box */
- String id = null;
-
- /** the id of the redirect target; only meaningful on a root node */
- String redirect = null;
-
- /** templates that should be preapplied (in the order of application); only meaningful on a root node */
- private Template[] preapply;
-
- /** templates that should be postapplied (in the order of application); only meaningful on a root node */
- private Template[] postapply;
-
- /** keys to be "put" to instances of this template; elements correspond to those of vals */
- private String[] keys;
-
- /** values to be "put" to instances of this template; elements correspond to those of keys */
- private Object[] vals;
-
- /** child template objects */
- private Template[] children;
-
- /** see numUnits(); -1 means that this value has not yet been computed */
- private int numunits = -1;
-
- /** the scope in which the static block is executed */
- private JS.Scope staticScope = null;
-
- /** the script on the static node of this template, null if it has already been executed */
- private JS.CompiledFunction staticscript = null;
-
- /** the script on this node */
- private JS.CompiledFunction script = null;
-
- /** the filename this node came from; used only for debugging */
- private String fileName = "unknown";
+ 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 /////////////////////////////////////////////////////////////////
- /** during XML parsing, this holds the list of currently-parsed children; null otherwise */
- private Vec childvect = new Vec();
-
- /** during XML parsing, this holds partially-read character data; null otherwise */
- private StringBuffer content = null;
-
- /** line number of the first line of content */
- private int content_start = 0;
-
- /** number of lines in content */
- private int content_lines = 0;
-
- /** the line number that this element starts on */
- private int startLine = -1;
+ 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 XWT xwt;
// Static data/methods ///////////////////////////////////////////////////////////////////
- private Template(String fileName) { this.fileName = fileName; }
-
- public static Template getTemplate(Res r) {
- try {
- if (r.t != null) return r.t;
- r.t = new Template(r.getDescriptiveName());
- new TemplateHelper().parseit(r.getInputStream(), r.t);
- return r.t;
- } catch (XML.SchemaException e) {
- if (Log.on) Log.log(Template.class, "error parsing template " + r.t.fileName);
- if (Log.on) Log.log(Template.class, e.getMessage());
- return null;
- } catch (XML.XMLException e) {
- if (Log.on) Log.log(Template.class, "error parsing template at " + r.t.fileName + ":" + e.getLine() + "," + e.getCol());
- if (Log.on) Log.log(Template.class, e.getMessage());
- return null;
- } catch (IOException e) {
- if (Log.on) Log.log(Template.class, "IOException while parsing template " + r.t.fileName + " -- this should never happen");
- if (Log.on) Log.log(Template.class, e);
- return null;
- }
- }
-
+ // 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 ////////////////////////////////////////////////////////
- /** calculates, caches, and returns an integer approximation of how long it will take to apply this template,
- * including pre/post and children */
- int numUnits() {
- if (numunits != -1) return numunits;
- numunits = 1;
- for(int i=0; preapply != null && 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?
+ }
+ }
- for(int i=0; postapply != null && iroot */
- void parseit(InputStream is, Template root) throws XML.XMLException, IOException {
- rootNodeHasBeenEncountered = false;
- templateNodeHasBeenEncountered = false;
- staticNodeHasBeenEncountered = false;
- templateNodeHasBeenFinished = false;
- nameOfHeaderNodeBeingProcessed = null;
-
- nodeStack.setSize(0);
- preapply.setSize(0);
- postapply.setSize(0);
-
- t = root;
- parse(new InputStreamReader(is));
+ 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;
}
+ }
- /** parsing state: true iff we have already encountered the open-tag */
- boolean rootNodeHasBeenEncountered = false;
-
- /** parsing state: true iff we have already encountered the open-tag */
- boolean templateNodeHasBeenEncountered = false;
-
- /** parsing state: true iff we have already encountered the open-tag */
- boolean staticNodeHasBeenEncountered = false;
-
- /** parsing state: true iff we have already encountered the close-tag */
- boolean templateNodeHasBeenFinished = false;
+ /** handles XML parsing; builds a Template tree as it goes */
+ static final class TemplateHelper extends XML {
- /** parsing state: If we have encountered the open tag of a header node, but not the close tag, this is the name of
- * that tag; otherwise, it is null. */
- String nameOfHeaderNodeBeingProcessed = null;
+ 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_IN_META_NODE = 3;
- /** stack of Templates whose XML elements we have seen open-tags for but not close-tags */
+ StringBuffer static_content = null;
+ int static_content_start = 0;
Vec nodeStack = new Vec();
-
- /** builds up the list of preapplies */
- Vec preapply = new Vec();
-
- /** builds up the list of postapplies */
- Vec postapply = new Vec();
-
- /** the template we're currently working on */
Template t = null;
+ int meta = 0;
+ XWT xwt;
+
+ 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);
+ }
- public void startElement(XML.Element c) throws XML.SchemaException {
- if (templateNodeHasBeenFinished) {
- throw new XML.SchemaException("no elements may appear after the node");
-
- } else if (!rootNodeHasBeenEncountered) {
- 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");
- rootNodeHasBeenEncountered = true;
- return;
-
- } else if (!templateNodeHasBeenEncountered) {
- if (nameOfHeaderNodeBeingProcessed != null) throw new XML.SchemaException("can't nest header nodes");
- nameOfHeaderNodeBeingProcessed = c.localName;
-
- if (c.localName.equals("import")) {
- if (c.len != 1 || !c.keys[0].equals("name"))
- throw new XML.SchemaException(" node must have exactly one attribute, which must be called 'name'");
- String importpackage = c.vals[0].toString();
- if (importpackage.endsWith(".*")) importpackage = importpackage.substring(0, importpackage.length() - 2);
- return;
-
- } else if (c.localName.equals("redirect")) {
- if (c.len != 1 || !c.keys[0].equals("target"))
- throw new XML.SchemaException(" node must have exactly one attribute, which must be called 'target'");
- if (t.redirect != null)
- throw new XML.SchemaException("the header element may not appear more than once");
- t.redirect = c.vals[0].toString();
- if(t.redirect.equals("null")) t.redirect = null;
- return;
-
- } else if (c.localName.equals("preapply")) {
- if (c.len != 1 || !c.keys[0].equals("name"))
- throw new XML.SchemaException(" node must have exactly one attribute, which must be called 'name'");
- preapply.addElement(c.vals[0]);
- return;
-
- } else if (c.localName.equals("postapply")) {
- if (c.len != 1 || !c.keys[0].equals("name"))
- throw new XML.SchemaException(" node must have exactly one attribute, which must be called 'name'");
- postapply.addElement(c.vals[0]);
- return;
+ 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;
+ }
- } else if (c.localName.equals("static")) {
- if (staticNodeHasBeenEncountered)
- 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");
- staticNodeHasBeenEncountered = true;
+ public void startElement(XML.Element c) throws XML.Exn {
+ switch(state) {
+ 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;
+ t = (t == null) ? new Template(xwt) : new Template(t, getLine());
+ break;
+ case STATE_IN_TEMPLATE_NODE:
+ nodeStack.addElement(t);
+ t = new Template(xwt);
+ break;
+ }
- } else if (c.localName.equals("template")) {
- // finalize importlist/preapply/postapply, since they can't change from here on
- t.startLine = getLine();
- if (preapply.size() > 0) preapply.copyInto(t.preapply = new Template[preapply.size()]);
- if (postapply.size() > 0) postapply.copyInto(t.postapply = new Template[postapply.size()]);
- templateNodeHasBeenEncountered = true;
-
- } else {
- throw new XML.SchemaException("unrecognized header node \"" + c.localName + "\"");
-
+ if (!("ui".equals(c.getPrefix()) && "box".equals(c.getLocalName()))) {
+ String tagname = (c.getUri().equals("") ? "" : (c.getUri() + ".")) + c.getLocalName();
+ // GROSS hack
+ try {
+ t.prev = (Template)t.xwt.resolveString(tagname, false).call(null, null, null, null, 9999);
+ } catch (Exception e) {
+ Log.error(Template.class, e);
}
+ }
+
+ 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));
+ }
- } else {
-
- // 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.fileName);
- t2.startLine = getLine();
- if (!c.localName.equals("box")) t2.preapply = new Template[] { /*c.localName FIXME */ };
-
- // make the new node the current node
- t = t2;
+ 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[c.len];
- t.vals = new Object[c.len];
- Hash h = new Hash(c.len * 2, 3);
- for(int i=0; i 0 && !hasNonNumeral) t.vals[i] = new Double(valString);
else t.vals[i] = valString.intern();
}
-
- // bump thisbox to the front of the pack
- if (t.keys[i].equals("thisbox")) {
- t.keys[i] = t.keys[0];
- t.keys[0] = "thisbox";
- Object o = t.vals[0];
- t.vals[0] = t.vals[i];
- t.vals[i] = o;
- }
- }
- }
-
- private JS.CompiledFunction genscript(boolean isstatic) {
- JS.CompiledFunction 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;
}
-
- t.content = null;
- t.content_start = 0;
- t.content_lines = 0;
- return thisscript;
}
- public void endElement(XML.Element c) throws XML.SchemaException {
- if (rootNodeHasBeenEncountered && !templateNodeHasBeenEncountered) {
- if ("static".equals(nameOfHeaderNodeBeingProcessed) && t.content != null) t.staticscript = genscript(true);
- nameOfHeaderNodeBeingProcessed = null;
-
- } else if (templateNodeHasBeenEncountered && !templateNodeHasBeenFinished) {
- // turn our childvect into a Template[]
- t.childvect.copyInto(t.children = new Template[t.childvect.size()]);
- t.childvect = null;
- if (t.content != null) t.script = genscript(false);
-
- if (nodeStack.size() == 0) {
- //
- templateNodeHasBeenFinished = true;
-
- } 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.childvect.addElement(oldt);
+ 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) || templateNodeHasBeenEncountered) {
- 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) {
- 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 PerInstantiationScope extends JS.Scope {
- Res resourceRoot = null;
- public PerInstantiationScope(Scope parentScope, Res resourceRoot) {
+ private static class PerInstantiationScope extends JSScope {
+ XWT xwt = 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 PerInstantiationScope(JSScope parentScope, XWT xwt, PerInstantiationScope parentBoxPis, JSScope myStatic) {
super(parentScope);
- this.resourceRoot = resourceRoot;
+ this.parentBoxPis = parentBoxPis;
+ this.xwt = xwt;
+ this.myStatic = myStatic;
}
- public boolean isTransparent() { return true; }
- public boolean has(Object key) { return false; }
- public void declare(String s) { super.declare(s); }
- public Object get(Object key) {
- // FIXME: access statics here
- if (Box.SpecialBoxProperty.specialBoxProperties.get(key) == null &&
- !super.has(key)) {
- Object ret = resourceRoot.get(key);
- if (ret != null) return ret;
- throw new JS.Exn("must declare " + key + " before using it!");
- }
+ 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) {
- // FIXME: access statics here
- if (Box.SpecialBoxProperty.specialBoxProperties.get(key) == null &&
- !super.has(key)) {
- throw new JS.Exn("must declare " + key + " before using it!");
- }
- super.put(key, val);
- }
}
}