X-Git-Url: http://git.megacz.com/?p=org.ibex.core.git;a=blobdiff_plain;f=src%2Forg%2Fxwt%2FTemplate.java;h=2cc62420e61021993a5953448a3eb93b2588140c;hp=0af2e0a4d87eee54f217aa6097ef21fbf678ac72;hb=16c24a73c1c1b2955db0bbbaf5a940215329bca1;hpb=6242c991f365dbd67eba62ecfa5df769a83fcbc6
diff --git a/src/org/xwt/Template.java b/src/org/xwt/Template.java
index 0af2e0a..2cc6242 100644
--- a/src/org/xwt/Template.java
+++ b/src/org/xwt/Template.java
@@ -1,21 +1,17 @@
-// Copyright 2002 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.*;
import java.util.zip.*;
import java.util.*;
import java.lang.*;
-import org.mozilla.javascript.*;
+import org.xwt.js.*;
+import org.xwt.translators.*;
import org.xwt.util.*;
/**
* Encapsulates a template node (the <template/> element of a
- * .xwt file, or any child element thereof). Each instance of
- * Template has a nodeName -- this is the resource name of
- * the file that the template node occurs in, concatenated with the
- * path from the root element to this node, each step of which is in
- * the form .n for some integer n. Static nodes use the string "._"
- * as a path.
+ * .xwt file, or any child element thereof).
*
* Note that the Template instance corresponding to the
* <template/> node carries all the header information -- hence
@@ -30,492 +26,225 @@ public class Template {
// Instance Members ///////////////////////////////////////////////////////
- /** this instance's nodeName */
- String nodeName;
+ 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
- /** 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 String[] preapply;
+ // Only used during parsing /////////////////////////////////////////////////////////////////
- /** 'linked' form of preapply -- the String references have been resolved into instance references */
- private Template[] _preapply = null;
-
- /** templates that should be postapplied (in the order of application); only meaningful on a root node */
- private String[] postapply;
-
- /** 'linked' form of postapply -- the String references have been resolved into instance references */
- private Template[] _postapply = null;
-
- /** 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;
-
- /** array of strings representing the importlist for this template */
- private String[] importlist;
-
- /** child template objects */
- private Template[] children;
-
- /** an array of the names of properties to be preserved when retheming; only meaningful on a root node */
- private String[] preserve = null;
-
- /** the id attribute on this node */
- private String id = "";
-
- /** see numUnits(); -1 means that this value has not yet been computed */
- private int numunits = -1;
-
- /** true iff the resolution of this template's preapply/postapply sets changed as a result of the most recent call to retheme() */
- private boolean changed = false;
-
- /** the script on the static node of this template, null if it has already been executed */
- private Script staticscript = null;
-
- /** the script on this node */
- private Script script = null;
-
- /** 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;
+ 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 ///////////////////////////////////////////////////////////////////
- /** a template cache so that only one Template object is created for each xwt */
- private static Hashtable cache = new Hashtable(1000);
-
- /** The default importlist; in future revisions this will contain "xwt.*" */
- public static final String[] defaultImportList = new String[] { };
-
- /** returns the appropriate template, resolving and theming as needed */
- public static Template getTemplate(String name, String[] importlist) {
- String resolved = Resources.resolve(name + ".xwt", importlist);
- Template t = resolved == null ? null : (Template)cache.get(resolved.substring(0, resolved.length() - 4));
- if (t != null) return t;
- if (resolved == null) return null;
-
- // note that Templates in xwar's are instantiated as read in via loadStream() --
- // the following code only runs when XWT is reading templates from a filesystem.
- ByteArrayInputStream bais = new ByteArrayInputStream(Resources.getResource(resolved));
- return buildTemplate(bais, resolved.substring(0, resolved.length() - 4));
- }
-
- public static Template buildTemplate(InputStream is, String nodeName) {
- try {
- return new Template(is, nodeName);
- } catch (XML.SAXParseException e) {
- if (Log.on) Log.log(Template.class, "error parsing template at " + nodeName + ":" + e.getLineNumber() + "," + e.getColumnNumber());
- if (Log.on) Log.log(Template.class, e);
- return null;
- } catch (XML.SAXException e) {
- if (Log.on) Log.log(Template.class, "error parsing template " + nodeName);
- if (Log.on) Log.log(Template.class, e);
- return null;
- } catch (TemplateException te) {
- if (Log.on) Log.log(Template.class, "error parsing template " + nodeName);
- if (Log.on) Log.log(Template.class, te);
- return null;
- } catch (IOException e) {
- if (Log.on) Log.log(Template.class, "IOException while parsing template " + nodeName + " -- 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 ////////////////////////////////////////////////////////
- private Template() { }
- private Template(InputStream is, String nodeName) throws XML.SAXException, IOException {
- this.nodeName = nodeName;
- cache.put(nodeName, this);
- new TemplateHelper().parseit(is, this);
- }
-
- /** calculates, caches, and returns an integer approximation of how long it will take to apply this template, including pre/post and children */
- int numUnits() {
- link();
- if (numunits != -1) return numunits;
- numunits = 1;
- for(int i=0; _preapply != null && i<_preapply.length; i++) if (_preapply[i] != null) numunits += _preapply[i].numUnits();
- for(int i=0; _postapply != null && i<_postapply.length; i++) if (_postapply[i] != null) numunits += _postapply[i].numUnits();
- if (script != null) numunits += 10;
- numunits += keys == null ? 0 : keys.length;
- for(int i=0; children != null && i elements of any
- // of the templates which would be applied in step 7."
- Vec keys = new Vec();
- b.template.gatherPreserves(keys);
- Object[] vals = new Object[keys.size()];
- for(int i=0; i= 0; i--) {
- kids[i] = b.redirect.getChild(i);
- kids[i].remove();
+ if (script != null) JS.cloneWithNewParentScope(script, 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;
+
+ 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 = xwt.resolveString(((String)val).substring(1), false);
+ // FIXME: url case
+ // FIXME: should we be resolving all of these in the XML-parsing code?
}
}
-
- // Ref 7.5.4: "Set the box's redirect target to self"
- b.redirect = b;
-
- // Ref 7.5.5: "Remove all of the box's immediate children"
- for(Box cur = b.getChild(b.numChildren() - 1); cur != null;) {
- Box oldcur = cur;
- cur = cur.prevSibling();
- oldcur.remove();
- }
-
- // Ref 7.5.6: "Remove all traps set by scripts run during the application of any template to this box"
- Trap.removeAllTrapsByBox(b);
-
- // Ref 7.5.7: "Apply the template to the box according to the usual application procedure"
- b.template.apply(b, null, null);
-
- // Ref 7.5.8: "Re-add the saved children which were removed in step 3"
- for(int i=0; kids != null && ichange as needed */
- void link() { link(false); }
- /** same as link(), except that with a true value, it will force a re-link */
- private void link(boolean force) {
- if (staticscript != null) try {
- Scriptable s = Static.getStatic(nodeName);
- if (staticscript != null) {
- Script temp = staticscript;
- staticscript = null;
- temp.exec(Context.enter(), s);
- }
- } catch (EcmaError e) {
- if (Log.on) Log.log(this, "WARNING: uncaught interpreter exception: " + e.getMessage());
- if (Log.on) Log.log(this, " thrown while executing block for " + nodeName +
- " at " + e.getSourceName() + ":" + e.getLineNumber());
- } catch (JavaScriptException e) {
- if (Log.on) Log.log(this, "WARNING: uncaught ecmascript exception: " + e.getMessage());
- if (Log.on) Log.log(this, " thrown while executing block for " + nodeName + " at " + e.sourceFile + ":" + e.line);
- }
+ // XML Parsing /////////////////////////////////////////////////////////////////
- if (!(force || (preapply != null && _preapply == null) || (postapply != null && _postapply == null))) return;
-
- if (preapply != null) {
- if (_preapply == null) _preapply = new Template[preapply.length];
- for(int i=0; i<_preapply.length; i++) {
- Template t = getTemplate(preapply[i], importlist);
- if (t != _preapply[i]) changed = true;
- _preapply[i] = t;
- }
- }
- if (postapply != null) {
- if (_postapply == null) _postapply = new Template[postapply.length];
- for(int i=0; i<_postapply.length; i++) {
- Template t = getTemplate(postapply[i], importlist);
- if (t != _postapply[i]) changed = true;
- _postapply[i] = t;
- }
+ 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;
}
-
- for(int i=0; children != null && iroot */
- void parseit(InputStream is, Template root) throws XML.SAXException, IOException {
- t = root;
- parse(new TabAndMaxColumnEnforcingReader(new InputStreamReader(is), root.nodeName));
- }
+ static final class TemplateHelper extends XML {
- /** parsing state: true iff we have already encountered the open-tag */
- boolean rootNodeHasBeenEncountered = false;
+ 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;
- /** 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;
-
- /** 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;
-
- /** 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 imports */
- Vec importlist = 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(String name, String[] keys, Object[] vals, int line, int col) throws XML.SAXException {
-
- if (templateNodeHasBeenFinished) {
- throw new XML.SAXException("no elements may appear after the node");
-
- } else if (!rootNodeHasBeenEncountered) {
- if (!"xwt".equals(name)) throw new XML.SAXException("root element was not ");
- if (keys.length != 0) throw new XML.SAXException("root element must not have attributes");
- rootNodeHasBeenEncountered = true;
- return;
-
- } else if (!templateNodeHasBeenEncountered) {
- if (nameOfHeaderNodeBeingProcessed != null) throw new XML.SAXException("can't nest header nodes");
- nameOfHeaderNodeBeingProcessed = name;
-
- if (name.equals("import")) {
- if (keys.length != 1 || !keys[0].equals("name"))
- throw new XML.SAXException(" node must have exactly one attribute, which must be called 'name'");
- String importpackage = vals[0].toString();
- if (importpackage.endsWith(".*")) importpackage = importpackage.substring(0, importpackage.length() - 2);
- importlist.addElement(importpackage);
- return;
-
- } else if (name.equals("redirect")) {
- if (keys.length != 1 || !keys[0].equals("target"))
- throw new XML.SAXException(" node must have exactly one attribute, which must be called 'target'");
- if (t.redirect != null)
- throw new XML.SAXException("the header element may not appear more than once");
- t.redirect = vals[0].toString();
- return;
-
- } else if (name.equals("preapply")) {
- if (keys.length != 1 || !keys[0].equals("name"))
- throw new XML.SAXException(" node must have exactly one attribute, which must be called 'name'");
- preapply.addElement(vals[0]);
- return;
-
- } else if (name.equals("postapply")) {
- if (keys.length != 1 || !keys[0].equals("name"))
- throw new XML.SAXException(" node must have exactly one attribute, which must be called 'name'");
- postapply.addElement(vals[0]);
- return;
-
- } else if (name.equals("static")) {
- if (staticNodeHasBeenEncountered)
- throw new XML.SAXException("the header node may not appear more than once");
- if (keys.length > 0)
- throw new XML.SAXException("the node may not have attributes");
- staticNodeHasBeenEncountered = true;
- return;
-
- } else if (name.equals("preserve")) {
- if (keys.length != 1 || !keys[0].equals("attributes"))
- throw new XML.SAXException(" node must have exactly one attribute, which must be called 'attributes'");
- if (t.preserve != null)
- throw new XML.SAXException(" header element may not appear more than once");
+ 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;
+ }
- StringTokenizer tok = new StringTokenizer(vals[0].toString(), ",", false);
- t.preserve = new String[tok.countTokens()];
- for(int i=0; i", 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 (name.equals("template")) {
- // finalize importlist/preapply/postapply, since they can't change from here on
- importlist.toArray(t.importlist = new String[importlist.size()]);
- if (preapply.size() > 0) preapply.copyInto(t.preapply = new String[preapply.size()]);
- if (postapply.size() > 0) postapply.copyInto(t.postapply = new String[postapply.size()]);
- importlist = preapply = postapply = null;
- templateNodeHasBeenEncountered = true;
-
- } else {
- throw new XML.SAXException("unrecognized header node \"" + name + "\"");
-
+ 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);
}
-
- } else {
-
- // push the last node we were in onto the stack
- nodeStack.addElement(t);
-
- // instantiate a new node, and set its nodeName/importlist/preapply
- Template t2 = new Template();
- t2.nodeName = t.nodeName + "." + t.childvect.size();
- t2.importlist = t.importlist;
- if (!name.equals("box")) t2.preapply = new String[] { name };
-
- // make the new node the current node
- t = t2;
-
+ }
+
+ 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));
}
- t.keys = keys;
- t.vals = vals;
+ if (keys.size() == 0) return;
- quickSortAttributes(0, t.keys.length - 1);
+ // sort the attributes lexicographically
+ Vec.sort(keys, vals, new Vec.CompareFunc() { public int compare(Object a, Object b) {
+ return ((String)a).compareTo((String)b);
+ } });
- for(int i=0; i 0 && !hasNonNumeral) vals[i] = new Double(valString);
- else vals[i] = valString.intern();
+ if (valString.length() > 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;
- }
- }
- }
-
- /** simple quicksort, from http://sourceforge.net/snippet/detail.php?type=snippet&id=100240 */
- private int partitionAttributes(int left, int right) {
- int i, j, middle;
- middle = (left + right) / 2;
- String s = t.keys[right]; t.keys[right] = t.keys[middle]; t.keys[middle] = s;
- Object o = t.vals[right]; t.vals[right] = t.vals[middle]; t.vals[middle] = o;
- for (i = left - 1, j = right; ; ) {
- while (t.keys[++i].compareTo(t.keys[right]) < 0);
- while (j > left && t.keys[--j].compareTo(t.keys[right]) > 0);
- if (i >= j) break;
- s = t.keys[i]; t.keys[i] = t.keys[j]; t.keys[j] = s;
- o = t.vals[i]; t.vals[i] = t.vals[j]; t.vals[j] = o;
}
- s = t.keys[right]; t.keys[right] = t.keys[i]; t.keys[i] = s;
- o = t.vals[right]; t.vals[right] = t.vals[i]; t.vals[i] = o;
- return i;
}
-
- /** simple quicksort, from http://sourceforge.net/snippet/detail.php?type=snippet&id=100240 */
- private void quickSortAttributes(int left, int right) {
- if (left >= right) return;
- int p = partitionAttributes(left, right);
- quickSortAttributes(left, p - 1);
- quickSortAttributes(p + 1, right);
- }
-
- public void endElement(String name, int line, int col) throws XML.SAXException {
-
- boolean hasNonWhitespace = false;
-
- int len = t == null || t.content == null ? 0 : t.content.length();
- for(int i=0; t.content != null && i
- 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');
}
-
- }
- }
-
- private Script genscript(boolean isstatic) {
- Script thisscript = null;
- Context cx = Context.enter();
- cx.setOptimizationLevel(-1);
-
- try {
- thisscript = cx.compileReader(null, new StringReader(t.content.toString()), t.nodeName + (isstatic ? "._" : ""), t.content_start, null);
- } catch (EcmaError ee) {
- if (Log.on) Log.log(this, ee.getMessage() + " at " + ee.getSourceName() + ":" + ee.getLineNumber());
- thisscript = null;
- } catch (EvaluatorException ee) {
- if (Log.on) Log.log(this, " ERROR: " + ee.getMessage());
- thisscript = null;
- } catch (IOException ioe) {
- if (Log.on) Log.log(this, "IOException while compiling script; this should never happen");
- if (Log.on) Log.log(this, ioe);
- thisscript = null;
}
-
- t.content = null;
- t.content_start = 0;
- t.content_lines = 0;
- return thisscript;
}
- public void content(char[] ch, int start, int length, int line, int col) throws XML.SAXException {
- if ("static".equals(nameOfHeaderNodeBeingProcessed) || templateNodeHasBeenEncountered) {
- int contentlines = 0;
- for(int i=start; i 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.Exn { }
}
- /** a filtering reader that watches for tabs and long lines */
- private static class TabAndMaxColumnEnforcingReader extends FilterReader {
- private int MAX_COLUMN = 150;
- private int column = 0;
- private int line = 1;
- private boolean lastCharWasCR = false;
- private String filename;
- public TabAndMaxColumnEnforcingReader(Reader r, String filename) { super(r); this.filename = filename; }
- public int read() {
- if (Log.on) Log.log(this, this.getClass().getName() + ".read() not supported, this should never happen");
- return -1;
+ 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 long skip(long numskip) {
- if (Log.on) Log.log(this, this.getClass().getName() + ".skip() not supported; this should never happen");
- return numskip;
+ public PerInstantiationScope(JSScope parentScope, XWT xwt, PerInstantiationScope parentBoxPis, JSScope myStatic) {
+ super(parentScope);
+ this.parentBoxPis = parentBoxPis;
+ this.xwt = xwt;
+ this.myStatic = myStatic;
}
- public int read(char[] buf, int off, int len) throws IOException {
- int ret = super.read(buf, off, len);
- for(int i=off; i MAX_COLUMN) {
- throw new TemplateException(filename + ":" + line + ": lines longer than " + MAX_COLUMN + " characters not allowed");
- } else {
- lastCharWasCR = false;
- }
- return ret;
+ 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);
}
}
- private static class TemplateException extends IOException {
- TemplateException(String s) { super(s); }
- }
-
}