Halve the security errors at startup, but still annoyingly many of them.

common/content/commandline.js

@@ -642,7 +642,7 @@ const CommandLine = Module("commandline", {
                 commandline.triggerCallback("submit", mode, command);
             }
             // user pressed <Up> or <Down> arrow to cycle this._history completion
-            else if (/^(<Up>|<Down>|<S-Up>|<S-Down>|<PageUp>|<PageDown>)$/.test(key)) {
+            else if (/^<(Up|Down|S-Up|S-Down|PageUp|PageDown)>$/.test(key)) {
                 // prevent tab from moving to the next field
                 event.preventDefault();
                 event.stopPropagation();
@@ -651,7 +651,7 @@ const CommandLine = Module("commandline", {
                 this._history.select(/Up/.test(key), !/(Page|S-)/.test(key));
             }
             // user pressed <Tab> to get completions of a command
-            else if (key == "<Tab>" || key == "<S-Tab>") {
+            else if (/^<(Tab|S-Tab)>$/.test(key)) {
                 // prevent tab from moving to the next field
                 event.preventDefault();
                 event.stopPropagation();
@@ -675,7 +675,7 @@ const CommandLine = Module("commandline", {
         }
         else if (event.type == "keyup") {
             let key = events.toString(event);
-            if (key == "<Tab>" || key == "<S-Tab>")
+            if (/^<(Tab|S-Tab)>$/.test(key))
                 this._tabTimer.flush();
         }
     },

common/content/help-single.xsl

@@ -0,0 +1,36 @@
+<!DOCTYPE document SYSTEM "chrome://liberator/content/liberator.dtd">
+
+<xsl:stylesheet version="1.0"
+    xmlns="http://www.w3.org/1999/xhtml"
+    xmlns:html="http://www.w3.org/1999/xhtml"
+    xmlns:liberator="http://vimperator.org/namespaces/liberator"
+    xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+    xmlns:str="http://exslt.org/strings"
+    xmlns:exsl="http://exslt.org/common"
+    extension-element-prefixes="exsl str">
+
+    <xsl:output method="xml" indent="no"/>
+
+    <xsl:variable name="root" select="/liberator:document"/>
+    <xsl:variable name="tags">
+        <xsl:text> </xsl:text>
+        <xsl:for-each select="$root//@tag|$root//liberator:tags/text()|$root//liberator:tag/text()">
+            <xsl:value-of select="concat(., ' ')"/>
+        </xsl:for-each>
+    </xsl:variable>
+
+    <xsl:template name="parse-tags">
+        <xsl:param name="text"/>
+        <div liberator:highlight="HelpTags">
+        <xsl:for-each select="str:tokenize($text)">
+            <a id="{.}" liberator:highlight="HelpTag"><xsl:value-of select="."/></a>
+        </xsl:for-each>
+        </div>
+    </xsl:template>
+
+    <xsl:template match="/">
+        <xsl:call-template name="parse-tags">
+            <xsl:with-param name="text" select="$tags"/>
+        </xsl:call-template>
+    </xsl:template>
+</xsl:stylesheet>

common/content/liberator.js

@@ -544,15 +544,20 @@ const Liberator = Module("liberator", {
     initHelp: function () {
         let namespaces = [config.name.toLowerCase(), "liberator"];
         services.get("liberator:").init({});
+
         let tagMap = services.get("liberator:").HELP_TAGS;
         let fileMap = services.get("liberator:").FILE_MAP;
         let overlayMap = services.get("liberator:").OVERLAY_MAP;
+
+        // Left as an XPCOM instantiation so it can easilly be moved
+        // into XPCOM code.
         function XSLTProcessor(sheet) {
             let xslt = Cc["@mozilla.org/document-transformer;1?type=xslt"].createInstance(Ci.nsIXSLTProcessor);
             xslt.importStylesheet(util.httpGet(sheet).responseXML);
             return xslt;
         }
 
+        // Find help and overlay files with the given name.
         function findHelpFile(file) {
             let result = [];
             for (let [, namespace] in Iterator(namespaces)) {
@@ -568,29 +573,36 @@ const Liberator = Module("liberator", {
             }
             return result;
         }
+        // Find the tags in the document.
         function addTags(file, doc) {
             doc = XSLT.transformToDocument(doc);
             for (let elem in util.evaluateXPath("//xhtml:a/@id", doc))
                 tagMap[elem.value] = file;
         }
 
-        const XSLT = XSLTProcessor("chrome://liberator/content/help.xsl");
+        const XSLT = XSLTProcessor("chrome://liberator/content/help-single.xsl");
 
+        // Scrape the list of help files from all.xml
+        // Always process main and overlay files, since XSLTProcessor and
+        // XMLHttpRequest don't allow access to chrome documents.
         tagMap.all = "all";
         let files = findHelpFile("all").map(function (doc)
                 [f.value for (f in util.evaluateXPath(
                     "//liberator:include/@href", doc))]);
 
+        // Scrape the tags from the rest of the help files.
         util.Array.flatten(files).forEach(function (file) {
             findHelpFile(file).forEach(function (doc) {
                 addTags(file, doc);
             });
         });
 
+        // Process plugin help entries.
         XML.ignoreWhiteSpace = false;
         XML.prettyPrinting = false;
         XML.prettyPrinting = true; // Should be false, but ignoreWhiteSpace=false doesn't work correctly. This is the lesser evil.
         XML.prettyIndent = 4;
+
         let body = XML();
         for (let [, context] in Iterator(plugins.contexts))
             if (context.INFO instanceof XML)
@@ -600,10 +612,8 @@ const Liberator = Module("liberator", {
         let help = '<?xml version="1.0"?>\n' +
                    '<?xml-stylesheet type="text/xsl" href="chrome://liberator/content/help.xsl"?>\n' +
                    '<!DOCTYPE document SYSTEM "chrome://liberator/content/liberator.dtd">' +
-            <document
-                name="plugins"
-                title={config.name + " Plugins"}
-                xmlns={NS}>
+            <document xmlns={NS}
+                name="plugins" title={config.name + " Plugins"}>
                 <h1 tag="using-plugins">Using Plugins</h1>
 
                 {body}

common/content/modules.js

@@ -92,12 +92,6 @@ window.addEventListener("load", function () {
 
             function init(mod, module)
                 function () module.INIT[mod].call(modules[module.name], modules[mod]);
-            function init(mod, module)
-                function () {
-                    if (!(mod in modules))
-                        dump(mod + " not in modules");
-                    return module.INIT[mod].call(modules[module.name], modules[mod]);
-                }
             for (let mod in values(loaded)) {
                 try {
                     if (mod in module.INIT)