Merge branch 'master' into filtered-actions

2024-11-10 20:09:57 +00:00 · 2024-08-26 15:23:24 +01:00 · 2024-08-26 15:23:24 +01:00 · 5645f52499
commit 5645f52499
parent c55188f92f bcae5cc2ef
1125 changed files with 33779 additions and 5882 deletions
--- a/.eslintrc.yml
+++ b/.eslintrc.yml
@ -231,7 +231,10 @@ rules:
  prefer-spread: 'off'
  prefer-template: 'off'
  quote-props: 'off'
-  quotes: 'off'
+  quotes:
+    - error
+    - double
+    - avoidEscape: true
  radix: 'off'
  require-atomic-updates: error
  require-await: error
--- a/.github/ISSUE_TEMPLATE/bug_report.yml
+++ b/.github/ISSUE_TEMPLATE/bug_report.yml
@ -21,7 +21,7 @@ body:
    attributes:
      label: To Reproduce
      description: "Steps to reproduce the behavior:"
-      value: |
+      placeholder: |
        1. Go to '...'
        2. Click on '....'
        3. Scroll down to '....'
@ -41,7 +41,7 @@ body:
    attributes:
      label: TiddlyWiki Configuration
      description: please complete the following information
-      value: |
+      placeholder: |
        - Version [e.g. v5.1.24]
        - Saving mechanism [e.g. Node.js, TiddlyDesktop, TiddlyHost etc]
        - Plugins installed [e.g. Freelinks, TiddlyMap]
--- a/.github/ISSUE_TEMPLATE/config.yml
+++ b/.github/ISSUE_TEMPLATE/config.yml
@ -1,7 +1,7 @@
 blank_issues_enabled: false
 contact_links:
  - name: Discuss feature request
-    url: https://github.com/Jermolene/TiddlyWiki5/discussions
+    url: https://github.com/TiddlyWiki/TiddlyWiki5/discussions
    about: Open new discussion about new feature
  - name: Talk.Tiddlywiki Forum
    url: https://talk.tiddlywiki.org
--- a/.github/workflows/cla-check.yml
+++ b/.github/workflows/cla-check.yml
@ -0,0 +1,30 @@
+name: Check CLA Signature
+on:
+  pull_request_target:
+    types:
+      - opened
+      - reopened
+    paths-ignore:
+      - 'licenses/cla-individual.md'
+jobs:
+  check_cla:
+    runs-on: ubuntu-latest
+    permissions:
+      pull-requests: write
+    if: ${{ (github.event.pull_request.user.login != github.repository_owner) }}
+    steps:
+    - run: |
+        if ! curl -s https://raw.githubusercontent.com/Jermolene/TiddlyWiki5/tiddlywiki-com/licenses/cla-individual.md | grep -o "@$USER,"; then
+          echo "CLA not signed"
+          gh pr comment "$NUMBER" -b "@$USER It appears that this is your first contribution to the project, welcome.
+          
+          With apologies for the bureaucracy, please could you prepare a separate PR to the 'tiddlywiki-com' branch with your signature for the Contributor License Agreement (see [contributing.md](https://github.com/TiddlyWiki/TiddlyWiki5/blob/master/contributing.md))."
+        else
+          echo "CLA already signed"
+          gh pr comment "$NUMBER" -b "Confirmed: **$USER** has already signed the Contributor License Agreement (see [contributing.md](https://github.com/TiddlyWiki/TiddlyWiki5/blob/master/contributing.md))"
+        fi
+      env:
+        GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        GH_REPO: ${{ github.repository }}
+        NUMBER: ${{ github.event.pull_request.number }}
+        USER: ${{ github.actor }}
--- a/.github/workflows/cla-signed.yml
+++ b/.github/workflows/cla-signed.yml
@ -0,0 +1,70 @@
+name: CLA Signed
+
+on:
+  pull_request_target:
+    types:
+      - opened
+      - closed
+    paths:
+      - 'licenses/cla-individual.md'
+
+env:
+  GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+  GH_REPO: ${{ github.repository }}
+  NUMBER: ${{ github.event.pull_request.number }}
+  AUTHOR: ${{ github.event.pull_request.user.login }}
+
+jobs:
+  # check if PRs updating the CLA are targetting the tiddlywiki-com branch
+  check-signature-branch:
+    if: (github.event.pull_request.merged != true) && (github.event.pull_request.user.login != github.repository_owner)
+    runs-on: ubuntu-latest
+    permissions:
+      pull-requests: write
+    steps:
+    - run: |
+        if ! $BRANCH == "tiddlywiki-com"; then
+          echo "This CLA signature targets the wrong branch"
+          gh pr comment "$NUMBER" -b "@$AUTHOR Signatures to the CLA must target the 'tiddlywiki-com' branch."
+        fi
+      env:
+        BRANCH: ${{ github.event.pull_request.base.ref }}
+
+  # leave a comment on each open PR by a given author when their signature is added to the CLA
+  cla-signed:
+    if: (github.event.pull_request.merged == true) && (github.event.pull_request.user.login != github.repository_owner)
+    runs-on: ubuntu-latest
+    permissions:
+      pull-requests: write
+    steps:
+    - name: List open PRs by user
+      id: list-prs
+      uses: actions/github-script@v6
+      with:
+        result-encoding: string
+        script: |
+          const owner = context.repo.owner,
+            repo = context.repo.repo,
+            author = context.payload.pull_request.user.login;
+
+          const { data: pullRequests } = await github.rest.pulls.list({
+            owner: owner,
+            repo: repo,
+            state: 'open',
+            sort: 'created',
+            direction: 'desc',
+            per_page: 100
+          });
+          const userPullRequests = pullRequests.filter(pr => pr.user.login === author),
+            prNumbers = userPullRequests.map(pr => pr.number).join(',');
+          console.log(`Open pull requests by ${author}:${prNumbers}`);
+          return prNumbers;
+          
+    - name: Comment open PRs by the same author
+      run: |
+        prs=($(echo ${{ steps.list-prs.outputs.result }} | tr "," "\n"))  
+  
+        for number in "${prs[@]}"  
+        do  
+          gh pr comment "$number" -b "**$AUTHOR** has signed the Contributor License Agreement (see [contributing.md](https://github.com/TiddlyWiki/TiddlyWiki5/blob/master/contributing.md))"
+        done     
--- a/.gitignore
+++ b/.gitignore
@ -8,3 +8,4 @@ node_modules/
 /test-results/
 /playwright-report/
 /playwright/.cache/
+$__StoryList.tid
--- a/bin/build-site.sh
+++ b/bin/build-site.sh
@ -5,7 +5,7 @@
 # Default to the current version number for building the plugin library

 if [  -z "$TW5_BUILD_VERSION" ]; then
-    TW5_BUILD_VERSION=v5.3.3
+    TW5_BUILD_VERSION=v5.3.6
 fi

 echo "Using TW5_BUILD_VERSION as [$TW5_BUILD_VERSION]"
@ -393,6 +393,17 @@ node $TW5_BUILD_TIDDLYWIKI \
 	--rendertiddler $:/core/save/empty plugins/tiddlywiki/highlight/empty.html text/plain \
 	|| exit 1

+# /plugins/tiddlywiki/geospatial/index.html		Demo wiki with geospatial plugin
+# /plugins/tiddlywiki/geospatial/empty.html		Empty wiki with geospatial plugin
+node $TW5_BUILD_TIDDLYWIKI \
+	./editions/geospatialdemo \
+	--verbose \
+	--load $TW5_BUILD_OUTPUT/build.tid \
+	--output $TW5_BUILD_OUTPUT \
+	--rendertiddler $:/core/save/all plugins/tiddlywiki/geospatial/index.html text/plain \
+	--rendertiddler $:/core/save/empty plugins/tiddlywiki/geospatial/empty.html text/plain \
+	|| exit 1
+
 ######################################################
 #
 # Language editions
--- a/bin/ci-pre-build.sh
+++ b/bin/ci-pre-build.sh
@ -7,4 +7,4 @@ npm --force install tiddlywiki || exit 1

 # Pull existing GitHub pages content

-git clone --depth=1 --branch=master "https://github.com/Jermolene/jermolene.github.io.git" output
+git clone --depth=1 --branch=master "https://github.com/TiddlyWiki/tiddlywiki.com-gh-pages.git" output
--- a/bin/ci-push.sh
+++ b/bin/ci-push.sh
@ -10,6 +10,6 @@ git config --global user.email "actions@github.com"
 git config --global user.name "GitHub Actions"
 git add -A .
 git commit --message "GitHub build: $GITHUB_RUN_NUMBER of $TW5_BUILD_BRANCH ($(date +'%F %T %Z'))"
-git remote add deploy "https://$GH_TOKEN@github.com/Jermolene/jermolene.github.io.git" &>/dev/null
+git remote add deploy "https://$GH_TOKEN@github.com/TiddlyWiki/tiddlywiki.com-gh-pages.git" &>/dev/null
 git push deploy master &>/dev/null
 cd ..
--- a/bin/readme-bld.sh
+++ b/bin/readme-bld.sh
@ -15,3 +15,11 @@ node $TW5_BUILD_TIDDLYWIKI \
 	--output . \
 	--build readmes \
 	|| exit 1
+
+# tw.org readmes
+node $TW5_BUILD_TIDDLYWIKI \
+	editions/tw.org \
+	--verbose \
+	--output . \
+	--build readmes \
+	|| exit 1
--- a/boot/boot.js
+++ b/boot/boot.js
@ -142,15 +142,15 @@ $tw.utils.each = function(object,callback) {
 	var next,f,length;
 	if(object) {
 		if(Object.prototype.toString.call(object) == "[object Array]") {
-			for (f=0, length=object.length; f<length; f++) {
+			for(f=0, length=object.length; f<length; f++) {
 				next = callback(object[f],f,object);
 				if(next === false) {
 					break;
 				}
-		    }
+			}
 		} else {
 			var keys = Object.keys(object);
-			for (f=0, length=keys.length; f<length; f++) {
+			for(f=0, length=keys.length; f<length; f++) {
 				var key = keys[f];
 				next = callback(object[key],key,object);
 				if(next === false) {
@ -177,6 +177,7 @@ document: defaults to current document
 eventListeners: array of event listeners (this option won't work until $tw.utils.addEventListeners() has been loaded)
 */
 $tw.utils.domMaker = function(tag,options) {
+	var options = options || {};
 	var doc = options.document || document;
 	var element = doc.createElementNS(options.namespace || "http://www.w3.org/1999/xhtml",tag);
 	if(options["class"]) {
@ -218,9 +219,34 @@ $tw.utils.error = function(err) {
 			heading = dm("h1",{text: errHeading}),
 			prompt = dm("div",{text: promptMsg, "class": "tc-error-prompt"}),
 			message = dm("div",{text: err, "class":"tc-error-message"}),
-			button = dm("div",{children: [dm("button",{text: ( $tw.language == undefined ? "close" : $tw.language.getString("Buttons/Close/Caption") )})], "class": "tc-error-prompt"}),
-			form = dm("form",{children: [heading,prompt,message,button], "class": "tc-error-form"});
+			closeButton = dm("div",{children: [dm("button",{text: ( $tw.language == undefined ? "close" : $tw.language.getString("Buttons/Close/Caption") )})], "class": "tc-error-prompt"}),
+			downloadButton = dm("div",{children: [dm("button",{text: ( $tw.language == undefined ? "download tiddlers" : $tw.language.getString("Buttons/EmergencyDownload/Caption") )})], "class": "tc-error-prompt"}),
+			form = dm("form",{children: [heading,prompt,downloadButton,message,closeButton], "class": "tc-error-form"});
 		document.body.insertBefore(form,document.body.firstChild);
+		downloadButton.addEventListener("click",function(event) {
+			if($tw && $tw.wiki) {
+				var tiddlers = [];
+				$tw.wiki.each(function(tiddler,title) {
+					tiddlers.push(tiddler.fields);
+				});
+				var link = dm("a"),
+					text = JSON.stringify(tiddlers);
+				if(Blob !== undefined) {
+					var blob = new Blob([text], {type: "text/html"});
+					link.setAttribute("href", URL.createObjectURL(blob));
+				} else {
+					link.setAttribute("href","data:text/html," + encodeURIComponent(text));
+				}
+				link.setAttribute("download","emergency-tiddlers-" + (new Date()) + ".json");
+				document.body.appendChild(link);
+				link.click();
+				document.body.removeChild(link);
+			} else {
+				alert("Emergency tiddler download is not available");
+			}
+			event.preventDefault();
+			return false;
+		},true);
 		form.addEventListener("submit",function(event) {
 			document.body.removeChild(form);
 			event.preventDefault();
@ -249,7 +275,7 @@ Extend an object with the properties from a list of source objects
 $tw.utils.extend = function(object /*, sourceObjectList */) {
 	$tw.utils.each(Array.prototype.slice.call(arguments,1),function(source) {
 		if(source) {
-			for (var p in source) {
+			for(var p in source) {
 				object[p] = source[p];
 			}
 		}
@ -263,7 +289,7 @@ Fill in any null or undefined properties of an object with the properties from a
 $tw.utils.deepDefaults = function(object /*, sourceObjectList */) {
 	$tw.utils.each(Array.prototype.slice.call(arguments,1),function(source) {
 		if(source) {
-			for (var p in source) {
+			for(var p in source) {
 				if(object[p] === null || object[p] === undefined) {
 					object[p] = source[p];
 				}
@ -360,8 +386,8 @@ $tw.utils.parseDate = function(value) {
 				parseInt(value.substr(10,2)||"00",10),
 				parseInt(value.substr(12,2)||"00",10),
 				parseInt(value.substr(14,3)||"000",10)));
-		  d.setUTCFullYear(year); // See https://stackoverflow.com/a/5870822
-		  return d;
+		d.setUTCFullYear(year); // See https://stackoverflow.com/a/5870822
+		return d;
 	} else if($tw.utils.isDate(value)) {
 		return value;
 	} else {
@ -786,6 +812,7 @@ $tw.utils.Crypto = function() {
 			}
 			return outputText;
 		};
+	$tw.sjcl = sjcl;
 	this.setPassword = function(newPassword) {
 		currentPassword = newPassword;
 		this.updateCryptoStateTiddler();
@ -866,8 +893,8 @@ $tw.modules.execute = function(moduleName,moduleRoot) {
 	} else {
 		/*
 		CommonJS optional require.main property:
-		 In a browser we offer a fake main module which points back to the boot function
-		 (Theoretically, this may allow TW to eventually load itself as a module in the browser)
+			In a browser we offer a fake main module which points back to the boot function
+			(Theoretically, this may allow TW to eventually load itself as a module in the browser)
 		*/
 		Object.defineProperty(sandbox.require, "main", {
 			value: (typeof(require) !== "undefined") ? require.main : {TiddlyWiki: _boot},
@ -909,9 +936,9 @@ $tw.modules.execute = function(moduleName,moduleRoot) {
 				moduleInfo.exports = moduleInfo.definition;
 			}
 		} catch(e) {
-			if (e instanceof SyntaxError) {
+			if(e instanceof SyntaxError) {
 				var line = e.lineNumber || e.line; // Firefox || Safari
-				if (typeof(line) != "undefined" && line !== null) {
+				if(typeof(line) != "undefined" && line !== null) {
 					$tw.utils.error("Syntax error in boot module " + name + ":" + line + ":\n" + e.stack);
 				} else if(!$tw.browser) {
 					// this is the only way to get node.js to display the line at which the syntax error appeared,
@ -1506,7 +1533,7 @@ Define all modules stored in ordinary tiddlers
 $tw.Wiki.prototype.defineTiddlerModules = function() {
 	this.each(function(tiddler,title) {
 		if(tiddler.hasField("module-type")) {
-			switch (tiddler.fields.type) {
+			switch(tiddler.fields.type) {
 				case "application/javascript":
 					// We only define modules that haven't already been defined, because in the browser modules in system tiddlers are defined in inline script
 					if(!$tw.utils.hop($tw.modules.titles,tiddler.fields.title)) {
@ -2016,7 +2043,7 @@ $tw.loadTiddlersFromSpecification = function(filepath,excludeRegExp) {
 		arrayOfFiles = arrayOfFiles || [];
 		var files = fs.readdirSync(dirPath);
 		files.forEach(function(file) {
-			if (recurse && fs.statSync(dirPath + path.sep + file).isDirectory()) {
+			if(recurse && fs.statSync(dirPath + path.sep + file).isDirectory()) {
 				arrayOfFiles = getAllFiles(dirPath + path.sep + file, recurse, arrayOfFiles);
 			} else if(fs.statSync(dirPath + path.sep + file).isFile()){
 				arrayOfFiles.push(path.join(dirPath, path.sep, file));
@ -2161,13 +2188,16 @@ Returns an array of search paths
 */
 $tw.getLibraryItemSearchPaths = function(libraryPath,envVar) {
 	var pluginPaths = [path.resolve($tw.boot.corePath,libraryPath)],
+		env;
+	if(envVar) {
 		env = process.env[envVar];
-	if(env) {
-		env.split(path.delimiter).map(function(item) {
-			if(item) {
-				pluginPaths.push(item);
-			}
-		});
+		if(env) {
+			env.split(path.delimiter).map(function(item) {
+				if(item) {
+					pluginPaths.push(item);
+				}
+			});
+		}
 	}
 	return pluginPaths;
 };
@ -2253,7 +2283,7 @@ $tw.loadWikiTiddlers = function(wikiPath,options) {
 		}
 		$tw.wiki.addTiddlers(tiddlerFile.tiddlers);
 	});
-	if ($tw.boot.wikiPath == wikiPath) {
+	if($tw.boot.wikiPath == wikiPath) {
 		// Save the original tiddler file locations if requested
 		var output = {}, relativePath, fileInfo;
 		for(var title in $tw.boot.files) {
@ -2607,14 +2637,14 @@ $tw.boot.doesTaskMatchPlatform = function(taskModule) {
 	var platforms = taskModule.platforms;
 	if(platforms) {
 		for(var t=0; t<platforms.length; t++) {
-			switch (platforms[t]) {
+			switch(platforms[t]) {
 				case "browser":
-					if ($tw.browser) {
+					if($tw.browser) {
 						return true;
 					}
 					break;
 				case "node":
-					if ($tw.node) {
+					if($tw.node) {
 						return true;
 					}
 					break;
@ -2697,7 +2727,7 @@ Invoke the hook by key
 $tw.hooks.invokeHook = function(hookName /*, value,... */) {
 	var args = Array.prototype.slice.call(arguments,1);
 	if($tw.utils.hop($tw.hooks.names,hookName)) {
-		for (var i = 0; i < $tw.hooks.names[hookName].length; i++) {
+		for(var i = 0; i < $tw.hooks.names[hookName].length; i++) {
 			args[0] = $tw.hooks.names[hookName][i].apply(null,args);
 		}
 	}
--- a/boot/bootprefix.js
+++ b/boot/bootprefix.js
@ -21,7 +21,7 @@ $tw.boot = $tw.boot || Object.create(null);

 // Detect platforms
 if(!("browser" in $tw)) {
-	$tw.browser = typeof(window) !== "undefined" ? {} : null;
+	$tw.browser = typeof(window) !== "undefined" && typeof(document) !== "undefined" ? {} : null;
 }
 if(!("node" in $tw)) {
 	$tw.node = typeof(process) === "object" ? {} : null;
--- a/boot/sjcl.js.meta
+++ b/boot/sjcl.js.meta
@ -1,3 +0,0 @@
-title: $:/library/sjcl.js
-type: application/javascript
-library: yes
--- a/boot/tiddlywiki.files
+++ b/boot/tiddlywiki.files
@ -0,0 +1,32 @@
+{
+	"tiddlers": [
+		{
+			"file": "sjcl.js",
+			"fields": {
+				"title": "$:/library/sjcl.js",
+				"type": "application/javascript",
+				"library": "yes"
+			},
+			"prefix": "(function(define) {\n",
+			"suffix": "\n})(function (_,defined){window.sjcl = defined()})\n"
+		},
+		{
+			"file": "boot.js",
+			"fields": {
+				"title": "$:/boot/boot.js",
+				"type": "application/javascript"
+			}
+		},
+		{
+			"file": "bootprefix.js",
+			"fields": {
+				"title": "$:/boot/bootprefix.js",
+				"type": "application/javascript"
+			}
+		},
+		{
+			"file": "boot.css.tid",
+			"isTiddlerFile": true
+		}
+	]
+}
--- a/code-of-conduct.md
+++ b/code-of-conduct.md
@ -0,0 +1 @@
+<p>This community exists because TiddlyWiki is more useful when people share and work together.</p><p>This community is a beautiful but fragile thing: a collection of diverse people from all over the planet, united in their interest in the project, and their commitment to helping one another achieve and learn more.</p><p>We try to make the community as broad and welcoming as possible by remembering some basic principles of culture and behaviour.</p><p>These principles guide technical and non-technical decisions, and help contributors and leaders support our project and community.</p><ul><li>We are optimistic and hopeful</li><li>We aim to foster a learning environment that is collaborative and safe for everyone</li><li>We recognise that the motivation for sharing and helping is usually for appreciation, and not financial gain, and so we take care to acknowledge and <strong>thank the people who enrich the community by sharing what they have created</strong></li><li>While we are united in our interest in TiddlyWiki, we differ in every other conceivable way. We choose to focus on what unites us, and <strong>avoid unnecessarily mixing contentious topics like religion and politics</strong></li><li>We treat each other with respect, and start with the assumption that <strong>others are acting in good faith</strong></li><li>We avoid discriminatory language</li><li>We try to use our strength as a community to help others</li><li>We avoid responding when angry or upset because we try to de-escalate conflict</li><li>We make sure we critique ideas, not people</li><li>When we disagree with others we do so graciously, and treat others with dignity and respoect</li><li>We do not tolerate intolerance towards others</li><li>We seek first to understand others, and then to be understood</li><li>We have fun</li></ul><p>Our discussions are in English. It is not the first language of many people in the community, nor do we all share the same cultural background and reference points. So we take care to use language that is clear and unambigous, and avoid cultural references or jokes that will not be widely understood.</p><p>It is not acceptable to make jokes or other comments that discriminate by race, gender, sexuality, or other protected characteristic.</p><p>As an inclusive community, we are committed to making sure that TiddlyWiki is an accessible tool that understands the needs of people with disabilities.</p>
--- a/contributing.md
+++ b/contributing.md
--- a/core/images/discord.tid
+++ b/core/images/discord.tid
@ -0,0 +1,5 @@
+title: $:/core/images/discord
+tags: $:/tags/Image
+
+\parameters (size:"22pt")
+<svg width=<<size>> height=<<size>> class="tc-image-discord tc-image-button" viewBox="0 -28.5 256 256"><path d="M216.856 16.597A208.502 208.502 0 0 0 164.042 0c-2.275 4.113-4.933 9.645-6.766 14.046-19.692-2.961-39.203-2.961-58.533 0-1.832-4.4-4.55-9.933-6.846-14.046a207.809 207.809 0 0 0-52.855 16.638C5.618 67.147-3.443 116.4 1.087 164.956c22.169 16.555 43.653 26.612 64.775 33.193A161.094 161.094 0 0 0 79.735 175.3a136.413 136.413 0 0 1-21.846-10.632 108.636 108.636 0 0 0 5.356-4.237c42.122 19.702 87.89 19.702 129.51 0a131.66 131.66 0 0 0 5.355 4.237 136.07 136.07 0 0 1-21.886 10.653c4.006 8.02 8.638 15.67 13.873 22.848 21.142-6.58 42.646-16.637 64.815-33.213 5.316-56.288-9.08-105.09-38.056-148.36ZM85.474 135.095c-12.645 0-23.015-11.805-23.015-26.18s10.149-26.2 23.015-26.2c12.867 0 23.236 11.804 23.015 26.2.02 14.375-10.148 26.18-23.015 26.18Zm85.051 0c-12.645 0-23.014-11.805-23.014-26.18s10.148-26.2 23.014-26.2c12.867 0 23.236 11.804 23.015 26.2 0 14.375-10.148 26.18-23.015 26.18Z"/></svg>
--- a/core/images/input-button.tid
+++ b/core/images/input-button.tid
@ -0,0 +1,5 @@
+title: $:/core/images/input-button
+tags: $:/tags/Image
+
+\parameters (size:"22pt")
+<svg width=<<size>> height=<<size>> class="tc-image-input-button tc-image-button" viewBox="0 0 22 22"><path d="M1.375 22h19.249c.365 0 .716-.145.973-.404v.001c.258-.257.404-.607.403-.972v-11a1.376 1.376 0 0 0-2.75 0v9.625H2.75V9.625a1.376 1.376 0 0 0-2.75 0v11C0 21.384.617 22 1.375 22Z"/><path d="m9.732 11.904-1.541-1.541a1.375 1.375 0 1 0-1.944 1.944l3.887 3.888c.258.258.608.402.973.402h-.001c.353 0 .705-.134.974-.402l3.888-3.889a1.376 1.376 0 0 0 .001-1.944 1.377 1.377 0 0 0-1.946 0l-1.541 1.542V1.376a1.375 1.375 0 1 0-2.75 0v10.528Z"/></svg>
--- a/core/images/standard-layout.tid
+++ b/core/images/standard-layout.tid
@ -0,0 +1,7 @@
+title: $:/core/images/standard-layout
+tags: $:/tags/Image
+
+\parameters (size:"22pt")
+<svg width=<<size>> height=<<size>> class="tc-image-standard-layout tc-image-button" viewBox="0 0 128 128">
+    <path d="M71.93 72A8.07 8.07 0 0 1 80 80.07v7.86A8.071 8.071 0 0 1 71.93 96H8.07A8.067 8.067 0 0 1 0 87.93v-7.86A8.072 8.072 0 0 1 8.07 72h63.86Zm0 32a8.07 8.07 0 0 1 8.07 8.07v7.86a8.071 8.071 0 0 1-8.07 8.07H8.07A8.067 8.067 0 0 1 0 119.93v-7.86A8.072 8.072 0 0 1 8.07 104h63.86Zm0-104A8.068 8.068 0 0 1 80 8.07v47.86A8.073 8.073 0 0 1 71.93 64H8.07A8.07 8.07 0 0 1 0 55.93V8.07A8.072 8.072 0 0 1 8.07 0h63.86Zm48 0c2.14 0 4.193.85 5.706 2.364A8.067 8.067 0 0 1 128 8.07v111.86c0 2.14-.85 4.193-2.364 5.706A8.067 8.067 0 0 1 119.93 128H96.07c-2.14 0-4.193-.85-5.706-2.364A8.067 8.067 0 0 1 88 119.93V8.07c0-2.14.85-4.193 2.364-5.706A8.067 8.067 0 0 1 96.07 0h23.86ZM116 24h-16a3.995 3.995 0 0 0-2.828 1.172 3.995 3.995 0 0 0 0 5.656A3.995 3.995 0 0 0 100 32h16a3.995 3.995 0 0 0 2.828-1.172 3.995 3.995 0 0 0 0-5.656A3.995 3.995 0 0 0 116 24Z"/>
+</svg>
--- a/core/language/en-GB/Buttons.multids
+++ b/core/language/en-GB/Buttons.multids
@ -28,6 +28,7 @@ Encryption/ClearPassword/Caption: clear password
 Encryption/ClearPassword/Hint: Clear the password and save this wiki without encryption
 Encryption/SetPassword/Caption: set password
 Encryption/SetPassword/Hint: Set a password for saving this wiki with encryption
+EmergencyDownload/Caption: download tiddlers as json
 ExportPage/Caption: export all
 ExportPage/Hint: Export all tiddlers
 ExportTiddler/Caption: export tiddler
@ -79,6 +80,7 @@ NewMarkdown/Caption: new Markdown tiddler
 NewMarkdown/Hint: Create a new Markdown tiddler
 NewTiddler/Caption: new tiddler
 NewTiddler/Hint: Create a new tiddler
+OpenControlPanel/Hint: Open control panel
 OpenWindow/Caption: open in new window
 OpenWindow/Hint: Open tiddler in new window
 Palette/Caption: palette
@ -103,6 +105,8 @@ ShowSideBar/Caption: show sidebar
 ShowSideBar/Hint: Show sidebar
 TagManager/Caption: tag manager
 TagManager/Hint: Open tag manager
+TestCaseImport/Caption: import tiddlers
+TestCaseImport/Hint: Import tiddlers
 Timestamp/Caption: timestamps
 Timestamp/Hint: Choose whether modifications update timestamps
 Timestamp/On/Caption: timestamps are on
--- a/core/language/en-GB/ControlPanel.multids
+++ b/core/language/en-GB/ControlPanel.multids
@ -198,6 +198,12 @@ Settings/TitleLinks/Yes/Description: Display tiddler titles as links
 Settings/MissingLinks/Caption: Wiki Links
 Settings/MissingLinks/Hint: Choose whether to link to tiddlers that do not exist yet
 Settings/MissingLinks/Description: Enable links to missing tiddlers
+SocialCard/Caption: Social Media Card
+SocialCard/Domain/Prompt: Domain name to display for the link (for example, ''tiddlywiki.com'')
+SocialCard/Hint: This information is used by social and messaging services to display a preview card for links to this TiddlyWiki when hosted online
+SocialCard/PreviewUrl/Prompt: Full URL to preview image for this TiddlyWiki
+SocialCard/PreviewUrl/Preview: Preview image:
+SocialCard/Url/Prompt: Full URL of this TiddlyWiki
 StoryTiddler/Caption: Story Tiddler
 StoryTiddler/Hint: This rule cascade is used to dynamically choose the template for displaying a tiddler in the story river.
 StoryView/Caption: Story View
@ -206,6 +212,12 @@ Stylesheets/Caption: Stylesheets
 Stylesheets/Expand/Caption: Expand All
 Stylesheets/Hint: This is the rendered CSS of the current stylesheet tiddlers tagged with <<tag "$:/tags/Stylesheet">>
 Stylesheets/Restore/Caption: Restore
+TestCases/Caption: Test Cases
+TestCases/Hint: Test cases are self contained examples for testing and learning
+TestCases/All/Caption: All Test Cases
+TestCases/All/Hint: All Test Cases
+TestCases/Failed/Caption: Failed Test Cases
+TestCases/Failed/Hint: Only Failed Test Cases
 Theme/Caption: Theme
 Theme/Prompt: Current theme:
 TiddlerFields/Caption: Tiddler Fields
@ -229,3 +241,7 @@ ViewTemplateBody/Caption: View Template Body
 ViewTemplateBody/Hint: This rule cascade is used by the default view template to dynamically choose the template for displaying the body of a tiddler.
 ViewTemplateTitle/Caption: View Template Title
 ViewTemplateTitle/Hint: This rule cascade is used by the default view template to dynamically choose the template for displaying the title of a tiddler.
+ViewTemplateSubtitle/Caption: View Template Subtitle
+ViewTemplateSubtitle/Hint: This rule cascade is used by the default view template to dynamically choose the template for displaying the subtitle of a tiddler.
+ViewTemplateTags/Caption: View Template Tags
+ViewTemplateTags/Hint: This rule cascade is used by the default view template to dynamically choose the template for displaying the tags area of a tiddler.
--- a/core/language/en-GB/Docs/PaletteColours.multids
+++ b/core/language/en-GB/Docs/PaletteColours.multids
@ -65,6 +65,13 @@ sidebar-tab-foreground-selected: Sidebar tab foreground for selected tabs
 sidebar-tab-foreground: Sidebar tab foreground
 sidebar-tiddler-link-foreground-hover: Sidebar tiddler link foreground hover
 sidebar-tiddler-link-foreground: Sidebar tiddler link foreground
+stability-stable: Badge for stability level "stable"
+stability-experimental: Badge for stability level "experimental"
+stability-deprecated: Badge for stability level "deprecated"
+stability-legacy: Badge for stability level "legacy"
+testcase-accent-level-1: Test case accent colour with no nesting
+testcase-accent-level-2: Test case accent colour with 2nd level nesting
+testcase-accent-level-3: Test case accent colour with 3rd level nesting or higher
 site-title-foreground: Site title foreground
 static-alert-foreground: Static alert foreground
 tab-background-selected: Tab background for selected tabs
--- a/core/language/en-GB/Fields.multids
+++ b/core/language/en-GB/Fields.multids
@ -30,6 +30,7 @@ name: The human readable name associated with a plugin tiddler
 parent-plugin: For a plugin, specifies which plugin of which it is a sub-plugin
 plugin-priority: A numerical value indicating the priority of a plugin tiddler
 plugin-type: The type of plugin in a plugin tiddler
+stability: The development status of a plugin: deprecated, experimental, stable, or legacy
 revision: The revision of the tiddler held at the server
 released: Date of a TiddlyWiki release
 source: The source URL associated with a tiddler
--- a/core/language/en-GB/Misc.multids
+++ b/core/language/en-GB/Misc.multids
@ -70,7 +70,7 @@ No: No
 OfficialPluginLibrary: Official ~TiddlyWiki Plugin Library
 OfficialPluginLibrary/Hint: The official ~TiddlyWiki plugin library at tiddlywiki.com. Plugins, themes and language packs are maintained by the core team.
 PageTemplate/Description: the default ~TiddlyWiki layout
-PageTemplate/Name: Default ~PageTemplate
+PageTemplate/Name: Standard Layout
 PluginReloadWarning: Please save {{$:/core/ui/Buttons/save-wiki}} and reload {{$:/core/ui/Buttons/refresh}} to allow changes to ~JavaScript plugins to take effect
 RecentChanges/DateFormat: DDth MMM YYYY
 Shortcuts/Input/AdvancedSearch/Hint: Open the ~AdvancedSearch panel from within the sidebar search field
--- a/core/language/en-GB/Snippets/FunctionDefinition.tid
+++ b/core/language/en-GB/Snippets/FunctionDefinition.tid
@ -0,0 +1,7 @@
+title: $:/language/Snippets/FunctionDefinition
+tags: $:/tags/TextEditor/Snippet
+caption: Function definition
+
+\function f.name(param1,param2:"default value") [<param1>!is[blank]else<param2>]
+
+<<f.name>>
--- a/core/language/en-GB/Snippets/ProcedureDefinition.tid
+++ b/core/language/en-GB/Snippets/ProcedureDefinition.tid
@ -0,0 +1,7 @@
+title: $:/language/Snippets/ProcedureDefinition
+tags: $:/tags/TextEditor/Snippet
+caption: Procedure definition
+
+\procedure procName(param1:"default value",param2)
+Your text comes here.
+\end
--- a/core/language/en-GB/Types/image_x-icon.tid
+++ b/core/language/en-GB/Types/image_x-icon.tid
@ -1,5 +0,0 @@
-title: $:/language/Docs/Types/image/x-icon
-description: ICO icon
-name: image/x-icon
-group: Image
-group-sort: 1
--- a/core/language/en-GB/Types/text_vnd.tiddlywiki_multiple.tid
+++ b/core/language/en-GB/Types/text_vnd.tiddlywiki_multiple.tid
@ -0,0 +1,5 @@
+title: $:/language/Docs/Types/text/vnd.tiddlywiki-multiple
+description: Compound tiddler
+name: text/vnd.tiddlywiki-multiple
+group: Developer
+group-sort: 2
--- a/core/modules/commands/listen.js
+++ b/core/modules/commands/listen.js
@ -18,7 +18,7 @@ exports.info = {
 	name: "listen",
 	synchronous: true,
 	namedParameterMode: true,
-	mandatoryParameters: [],
+	mandatoryParameters: []
 };

 var Command = function(params,commander,callback) {
--- a/core/modules/commands/makelibrary.js
+++ b/core/modules/commands/makelibrary.js
@ -27,33 +27,8 @@ var Command = function(params,commander,callback) {

 Command.prototype.execute = function() {
 	var wiki = this.commander.wiki,
-		fs = require("fs"),
-		path = require("path"),
 		upgradeLibraryTitle = this.params[0] || UPGRADE_LIBRARY_TITLE,
-		tiddlers = {};
-	// Collect up the library plugins
-	var collectPlugins = function(folder) {
-			var pluginFolders = $tw.utils.getSubdirectories(folder) || [];
-			for(var p=0; p<pluginFolders.length; p++) {
-				if(!$tw.boot.excludeRegExp.test(pluginFolders[p])) {
-					pluginFields = $tw.loadPluginFolder(path.resolve(folder,"./" + pluginFolders[p]));
-					if(pluginFields && pluginFields.title) {
-						tiddlers[pluginFields.title] = pluginFields;
-					}
-				}
-			}
-		},
-		collectPublisherPlugins = function(folder) {
-			var publisherFolders = $tw.utils.getSubdirectories(folder) || [];
-			for(var t=0; t<publisherFolders.length; t++) {
-				if(!$tw.boot.excludeRegExp.test(publisherFolders[t])) {
-					collectPlugins(path.resolve(folder,"./" + publisherFolders[t]));
-				}
-			}
-		};
-	$tw.utils.each($tw.getLibraryItemSearchPaths($tw.config.pluginsPath,$tw.config.pluginsEnvVar),collectPublisherPlugins);
-	$tw.utils.each($tw.getLibraryItemSearchPaths($tw.config.themesPath,$tw.config.themesEnvVar),collectPublisherPlugins);
-	$tw.utils.each($tw.getLibraryItemSearchPaths($tw.config.languagesPath,$tw.config.languagesEnvVar),collectPlugins);
+		tiddlers = $tw.utils.getAllPlugins();
 	// Save the upgrade library tiddler
 	var pluginFields = {
 		title: upgradeLibraryTitle,
--- a/core/modules/commands/render.js
+++ b/core/modules/commands/render.js
@ -45,17 +45,22 @@ Render individual tiddlers and save the results to the specified files
 				variableList = variableList.slice(2);
 			}
 		$tw.utils.each(tiddlers,function(title) {
-			var filepath = path.resolve(self.commander.outputPath,wiki.filterTiddlers(filenameFilter,$tw.rootWidget,wiki.makeTiddlerIterator([title]))[0]);
-			if(self.commander.verbose) {
-				console.log("Rendering \"" + title + "\" to \"" + filepath + "\"");
+			var filenameResults = wiki.filterTiddlers(filenameFilter,$tw.rootWidget,wiki.makeTiddlerIterator([title]));
+			if(filenameResults.length > 0) {
+				var filepath = path.resolve(self.commander.outputPath,filenameResults[0]);
+				if(self.commander.verbose) {
+					console.log("Rendering \"" + title + "\" to \"" + filepath + "\"");
+				}
+				var parser = wiki.parseTiddler(template || title),
+					widgetNode = wiki.makeWidget(parser,{variables: $tw.utils.extend({},variables,{currentTiddler: title,storyTiddler: title})}),
+					container = $tw.fakeDocument.createElement("div");
+				widgetNode.render(container,null);
+				var text = type === "text/html" ? container.innerHTML : container.textContent;
+				$tw.utils.createFileDirectories(filepath);
+				fs.writeFileSync(filepath,text,"utf8");
+			} else {
+				console.log("Not rendering \"" + title + "\" because the filename filter returned an empty result");
 			}
-			var parser = wiki.parseTiddler(template || title),
-				widgetNode = wiki.makeWidget(parser,{variables: $tw.utils.extend({},variables,{currentTiddler: title,storyTiddler: title})}),
-				container = $tw.fakeDocument.createElement("div");
-			widgetNode.render(container,null);
-			var text = type === "text/html" ? container.innerHTML : container.textContent;
-			$tw.utils.createFileDirectories(filepath);
-			fs.writeFileSync(filepath,text,"utf8");
 		});
 		return null;
 	};
--- a/core/modules/commands/save.js
+++ b/core/modules/commands/save.js
@ -43,7 +43,9 @@ Saves individual tiddlers in their raw text or binary format to the specified fi
 						directory: path.resolve(self.commander.outputPath),
 						pathFilters: [filenameFilter],
 						wiki: wiki,
-						fileInfo: {}
+						fileInfo: {
+							overwrite: true
+						}
 					});
 					if(self.commander.verbose) {
 						console.log("Saving \"" + title + "\" to \"" + fileInfo.filepath + "\"");
--- a/core/modules/commands/savewikifolder.js
+++ b/core/modules/commands/savewikifolder.js
@ -176,7 +176,10 @@ WikiFolderMaker.prototype.saveCustomPlugin = function(pluginTiddler) {
 	this.saveJSONFile(directory + path.sep + "plugin.info",pluginInfo);
 	self.log("Writing " + directory + path.sep + "plugin.info: " + JSON.stringify(pluginInfo,null,$tw.config.preferences.jsonSpaces));
 	var pluginTiddlers = $tw.utils.parseJSONSafe(pluginTiddler.fields.text).tiddlers; // A hashmap of tiddlers in the plugin
-	$tw.utils.each(pluginTiddlers,function(tiddler) {
+	$tw.utils.each(pluginTiddlers,function(tiddler,title) {
+		if(!tiddler.title) {
+			tiddler.title = title;
+		 }
 		self.saveTiddler(directory,new $tw.Tiddler(tiddler));
 	});
 };
--- a/core/modules/config.js
+++ b/core/modules/config.js
@ -30,7 +30,7 @@ exports.textPrimitives.wikiLink = exports.textPrimitives.upperLetter + "+" +
 	exports.textPrimitives.upperLetter +
 	exports.textPrimitives.anyLetter + "*";

-exports.htmlEntities = {quot:34, dollar:36, amp:38, apos:39, lt:60, gt:62, nbsp:160, iexcl:161, cent:162, pound:163, curren:164, yen:165, brvbar:166, sect:167, uml:168, copy:169, ordf:170, laquo:171, not:172, shy:173, reg:174, macr:175, deg:176, plusmn:177, sup2:178, sup3:179, acute:180, micro:181, para:182, middot:183, cedil:184, sup1:185, ordm:186, raquo:187, frac14:188, frac12:189, frac34:190, iquest:191, Agrave:192, Aacute:193, Acirc:194, Atilde:195, Auml:196, Aring:197, AElig:198, Ccedil:199, Egrave:200, Eacute:201, Ecirc:202, Euml:203, Igrave:204, Iacute:205, Icirc:206, Iuml:207, ETH:208, Ntilde:209, Ograve:210, Oacute:211, Ocirc:212, Otilde:213, Ouml:214, times:215, Oslash:216, Ugrave:217, Uacute:218, Ucirc:219, Uuml:220, Yacute:221, THORN:222, szlig:223, agrave:224, aacute:225, acirc:226, atilde:227, auml:228, aring:229, aelig:230, ccedil:231, egrave:232, eacute:233, ecirc:234, euml:235, igrave:236, iacute:237, icirc:238, iuml:239, eth:240, ntilde:241, ograve:242, oacute:243, ocirc:244, otilde:245, ouml:246, divide:247, oslash:248, ugrave:249, uacute:250, ucirc:251, uuml:252, yacute:253, thorn:254, yuml:255, OElig:338, oelig:339, Scaron:352, scaron:353, Yuml:376, fnof:402, circ:710, tilde:732, Alpha:913, Beta:914, Gamma:915, Delta:916, Epsilon:917, Zeta:918, Eta:919, Theta:920, Iota:921, Kappa:922, Lambda:923, Mu:924, Nu:925, Xi:926, Omicron:927, Pi:928, Rho:929, Sigma:931, Tau:932, Upsilon:933, Phi:934, Chi:935, Psi:936, Omega:937, alpha:945, beta:946, gamma:947, delta:948, epsilon:949, zeta:950, eta:951, theta:952, iota:953, kappa:954, lambda:955, mu:956, nu:957, xi:958, omicron:959, pi:960, rho:961, sigmaf:962, sigma:963, tau:964, upsilon:965, phi:966, chi:967, psi:968, omega:969, thetasym:977, upsih:978, piv:982, ensp:8194, emsp:8195, thinsp:8201, zwnj:8204, zwj:8205, lrm:8206, rlm:8207, ndash:8211, mdash:8212, lsquo:8216, rsquo:8217, sbquo:8218, ldquo:8220, rdquo:8221, bdquo:8222, dagger:8224, Dagger:8225, bull:8226, hellip:8230, permil:8240, prime:8242, Prime:8243, lsaquo:8249, rsaquo:8250, oline:8254, frasl:8260, euro:8364, image:8465, weierp:8472, real:8476, trade:8482, alefsym:8501, larr:8592, uarr:8593, rarr:8594, darr:8595, harr:8596, crarr:8629, lArr:8656, uArr:8657, rArr:8658, dArr:8659, hArr:8660, forall:8704, part:8706, exist:8707, empty:8709, nabla:8711, isin:8712, notin:8713, ni:8715, prod:8719, sum:8721, minus:8722, lowast:8727, radic:8730, prop:8733, infin:8734, ang:8736, and:8743, or:8744, cap:8745, cup:8746, int:8747, there4:8756, sim:8764, cong:8773, asymp:8776, ne:8800, equiv:8801, le:8804, ge:8805, sub:8834, sup:8835, nsub:8836, sube:8838, supe:8839, oplus:8853, otimes:8855, perp:8869, sdot:8901, lceil:8968, rceil:8969, lfloor:8970, rfloor:8971, lang:9001, rang:9002, loz:9674, spades:9824, clubs:9827, hearts:9829, diams:9830 };
+exports.htmlEntities = {quot:34, dollar:36, amp:38, apos:39, lt:60, gt:62, nbsp:160, iexcl:161, cent:162, pound:163, curren:164, yen:165, brvbar:166, sect:167, uml:168, copy:169, ordf:170, laquo:171, not:172, shy:173, reg:174, macr:175, deg:176, plusmn:177, sup2:178, sup3:179, acute:180, micro:181, para:182, middot:183, cedil:184, sup1:185, ordm:186, raquo:187, frac14:188, frac12:189, frac34:190, iquest:191, Agrave:192, Aacute:193, Acirc:194, Atilde:195, Auml:196, Aring:197, AElig:198, Ccedil:199, Egrave:200, Eacute:201, Ecirc:202, Euml:203, Igrave:204, Iacute:205, Icirc:206, Iuml:207, ETH:208, Ntilde:209, Ograve:210, Oacute:211, Ocirc:212, Otilde:213, Ouml:214, times:215, Oslash:216, Ugrave:217, Uacute:218, Ucirc:219, Uuml:220, Yacute:221, THORN:222, szlig:223, agrave:224, aacute:225, acirc:226, atilde:227, auml:228, aring:229, aelig:230, ccedil:231, egrave:232, eacute:233, ecirc:234, euml:235, igrave:236, iacute:237, icirc:238, iuml:239, eth:240, ntilde:241, ograve:242, oacute:243, ocirc:244, otilde:245, ouml:246, divide:247, oslash:248, ugrave:249, uacute:250, ucirc:251, uuml:252, yacute:253, thorn:254, yuml:255, OElig:338, oelig:339, Scaron:352, scaron:353, Yuml:376, fnof:402, circ:710, tilde:732, Alpha:913, Beta:914, Gamma:915, Delta:916, Epsilon:917, Zeta:918, Eta:919, Theta:920, Iota:921, Kappa:922, Lambda:923, Mu:924, Nu:925, Xi:926, Omicron:927, Pi:928, Rho:929, Sigma:931, Tau:932, Upsilon:933, Phi:934, Chi:935, Psi:936, Omega:937, alpha:945, beta:946, gamma:947, delta:948, epsilon:949, zeta:950, eta:951, theta:952, iota:953, kappa:954, lambda:955, mu:956, nu:957, xi:958, omicron:959, pi:960, rho:961, sigmaf:962, sigma:963, tau:964, upsilon:965, phi:966, chi:967, psi:968, omega:969, thetasym:977, upsih:978, piv:982, ensp:8194, emsp:8195, thinsp:8201, zwnj:8204, zwj:8205, lrm:8206, rlm:8207, ndash:8211, mdash:8212, lsquo:8216, rsquo:8217, sbquo:8218, ldquo:8220, rdquo:8221, bdquo:8222, dagger:8224, Dagger:8225, bull:8226, hellip:8230, permil:8240, prime:8242, Prime:8243, lsaquo:8249, rsaquo:8250, oline:8254, frasl:8260, nobreak:8288, NoBreak:8288, euro:8364, image:8465, weierp:8472, real:8476, trade:8482, alefsym:8501, larr:8592, uarr:8593, rarr:8594, darr:8595, harr:8596, crarr:8629, lArr:8656, uArr:8657, rArr:8658, dArr:8659, hArr:8660, forall:8704, part:8706, exist:8707, empty:8709, nabla:8711, isin:8712, notin:8713, ni:8715, prod:8719, sum:8721, minus:8722, lowast:8727, radic:8730, prop:8733, infin:8734, ang:8736, and:8743, or:8744, cap:8745, cup:8746, int:8747, there4:8756, sim:8764, cong:8773, asymp:8776, ne:8800, equiv:8801, le:8804, ge:8805, sub:8834, sup:8835, nsub:8836, sube:8838, supe:8839, oplus:8853, otimes:8855, perp:8869, sdot:8901, lceil:8968, rceil:8969, lfloor:8970, rfloor:8971, lang:9001, rang:9002, loz:9674, spades:9824, clubs:9827, hearts:9829, diams:9830 };

 exports.htmlVoidElements = "area,base,br,col,command,embed,hr,img,input,keygen,link,meta,param,source,track,wbr".split(",");

--- a/core/modules/filters/backtranscludes.js
+++ b/core/modules/filters/backtranscludes.js
@ -16,11 +16,11 @@ Filter operator for returning all the backtranscludes from a tiddler
 Export our filter function
 */
 exports.backtranscludes = function(source,operator,options) {
-	var results = [];
+	var results = new $tw.utils.LinkedList();
 	source(function(tiddler,title) {
-		$tw.utils.pushTop(results,options.wiki.getTiddlerBacktranscludes(title));
+		results.pushTop(options.wiki.getTiddlerBacktranscludes(title));
 	});
-	return results;
+	return results.makeTiddlerIterator(options.wiki);
 };

 })();
--- a/core/modules/filters/crypto.js
+++ b/core/modules/filters/crypto.js
@ -14,12 +14,9 @@ Filter operators for cryptography, using the Stanford JavaScript library

 exports.sha256 = function(source,operator,options) {
 	var results = [],
-		length = parseInt(operator.operand,10) || 20,
-		sha256 = function(text) {
-			return sjcl.codec.hex.fromBits(sjcl.hash.sha256.hash(text)).substr(0,length);
-		};
+		length = parseInt(operator.operand,10) || 20;
 	source(function(tiddler,title) {
-		results.push(sha256(title));
+		results.push($tw.utils.sha256(title,{length: length}));
 	});
 	return results;
 };
--- a/core/modules/filters/strings.js
+++ b/core/modules/filters/strings.js
@ -127,7 +127,7 @@ function diffPartsToChars(text1,text2,mode) {
            if(lineHash.hasOwnProperty ? lineHash.hasOwnProperty(line) : (lineHash[line] !== undefined)) {
 				chars += String.fromCharCode(lineHash[line]);
            } else {
-                if (lineArrayLength == maxLines) {
+                if(lineArrayLength == maxLines) {
                  line = text.substring(lineStart);
                  lineEnd = text.length;
                }
@ -217,7 +217,10 @@ exports.splitregexp = function(source,operator,options) {
 		return ["RegExp error: " + ex];
 	}
 	source(function(tiddler,title) {
-		Array.prototype.push.apply(result,title.split(regExp));
+		var parts = title.split(regExp).map(function(part){
+			return part || "";	// make sure it's a string
+		});
+		Array.prototype.push.apply(result,parts);
 	});
 	return result;
 };
@ -264,7 +267,7 @@ exports.pad = function(source,operator,options) {
 			} else {
 				var padString = "",
 					padStringLength = targetLength - title.length;
-				while (padStringLength > padString.length) {
+				while(padStringLength > padString.length) {
 					padString += fill;
 				}
 				//make sure we do not exceed the specified length
--- a/core/modules/filters/transcludes.js
+++ b/core/modules/filters/transcludes.js
@ -20,7 +20,7 @@ exports.transcludes = function(source,operator,options) {
 	source(function(tiddler,title) {
 		results.pushTop(options.wiki.getTiddlerTranscludes(title));
 	});
-	return results.toArray();
+	return results.makeTiddlerIterator(options.wiki);
 };

 })();
--- a/core/modules/filters/x-listops.js
+++ b/core/modules/filters/x-listops.js
@ -202,7 +202,7 @@ Extended filter operators to manipulate the current list.
 		}
 		if(resultsIndex !== -1) {
 			i = i + step;
-			nextOperandIndex = (i < opLength ? i : i - opLength);
+			nextOperandIndex = (i < opLength ? i : i % opLength);
 			if(operands.length > 1) {
 				results.splice(resultsIndex,1,operands[nextOperandIndex]);
 			} else {
--- a/core/modules/indexers/back-indexer.js
+++ b/core/modules/indexers/back-indexer.js
@ -70,9 +70,12 @@ BackSubIndexer.prototype.rebuild = function() {
 * Get things that is being referenced in the text, e.g. tiddler names in the link syntax.
 */
 BackSubIndexer.prototype._getTarget = function(tiddler) {
+	if(this.wiki.isBinaryTiddler(tiddler.fields.text)) {
+		return [];
+	}
 	var parser = this.wiki.parseText(tiddler.fields.type, tiddler.fields.text, {});
 	if(parser) {
-		return this.wiki[this.extractor](parser.tree);
+		return this.wiki[this.extractor](parser.tree, tiddler.fields.title);
 	}
 	return [];
 }
--- a/core/modules/macros/csvtiddlers.js
+++ b/core/modules/macros/csvtiddlers.js
@ -35,9 +35,11 @@ exports.run = function(filter,format) {
 	// Collect all the fields
 	for(t=0;t<tiddlers.length; t++) {
 		tiddler = this.wiki.getTiddler(tiddlers[t]);
-		for(f in tiddler.fields) {
-			if(fields.indexOf(f) === -1) {
-				fields.push(f);
+		if(tiddler) {
+			for(f in tiddler.fields) {
+				if(fields.indexOf(f) === -1) {
+					fields.push(f);
+				}
 			}
 		}
 	}
@ -60,8 +62,10 @@ exports.run = function(filter,format) {
 	for(var t=0;t<tiddlers.length; t++) {
 		row = [];
 		tiddler = this.wiki.getTiddler(tiddlers[t]);
-			for(f=0; f<fields.length; f++) {
-				row.push(quoteAndEscape(tiddler ? tiddler.getFieldString(fields[f]) || "" : ""));
+			if(tiddler) {
+				for(f=0; f<fields.length; f++) {
+					row.push(quoteAndEscape(tiddler ? tiddler.getFieldString(fields[f]) || "" : ""));
+				}	
 			}
 		output.push(row.join(","));
 	}
--- a/core/modules/parsers/parseutils.js
+++ b/core/modules/parsers/parseutils.js
@ -114,7 +114,7 @@ exports.parseStringLiteral = function(source,pos) {
 	var match = reString.exec(source);
 	if(match && match.index === pos) {
 		node.value = match[1] !== undefined ? match[1] :(
-			match[2] !== undefined ? match[2] : match[3] 
+			match[2] !== undefined ? match[2] : match[3]
 					);
 		node.end = pos + match[0].length;
 		return node;
--- a/core/modules/parsers/wikiparser/rules/codeblock.js
+++ b/core/modules/parsers/wikiparser/rules/codeblock.js
@ -29,13 +29,16 @@ exports.init = function(parser) {

 exports.parse = function() {
 	var reEnd = /(\r?\n```$)/mg;
+	var languageStart = this.parser.pos + 3,
+		languageEnd = languageStart + this.match[1].length;
 	// Move past the match
 	this.parser.pos = this.matchRegExp.lastIndex;

 	// Look for the end of the block
 	reEnd.lastIndex = this.parser.pos;
 	var match = reEnd.exec(this.parser.source),
-		text;
+		text,
+		codeStart = this.parser.pos;
 	// Process the block
 	if(match) {
 		text = this.parser.source.substring(this.parser.pos,match.index);
@ -48,8 +51,8 @@ exports.parse = function() {
 	return [{
 			type: "codeblock",
 			attributes: {
-					code: {type: "string", value: text},
-					language: {type: "string", value: this.match[1]}
+					code: {type: "string", value: text, start: codeStart, end: this.parser.pos},
+					language: {type: "string", value: this.match[1], start: languageStart, end: languageEnd}
 			}
 	}];
 };
--- a/core/modules/parsers/wikiparser/rules/codeinline.js
+++ b/core/modules/parsers/wikiparser/rules/codeinline.js
@ -33,7 +33,8 @@ exports.parse = function() {
 	// Look for the end marker
 	reEnd.lastIndex = this.parser.pos;
 	var match = reEnd.exec(this.parser.source),
-		text;
+		text,
+		start = this.parser.pos;
 	// Process the text
 	if(match) {
 		text = this.parser.source.substring(this.parser.pos,match.index);
@ -47,7 +48,9 @@ exports.parse = function() {
 		tag: "code",
 		children: [{
 			type: "text",
-			text: text
+			text: text,
+			start: start,
+			end: this.parser.pos
 		}]
 	}];
 };
--- a/core/modules/parsers/wikiparser/rules/extlink.js
+++ b/core/modules/parsers/wikiparser/rules/extlink.js
@ -31,6 +31,7 @@ exports.init = function(parser) {

 exports.parse = function() {
 	// Move past the match
+    var start = this.parser.pos;
 	this.parser.pos = this.matchRegExp.lastIndex;
 	// Create the link unless it is suppressed
 	if(this.match[0].substr(0,1) === "~") {
@ -46,7 +47,7 @@ exports.parse = function() {
 				rel: {type: "string", value: "noopener noreferrer"}
 			},
 			children: [{
-				type: "text", text: this.match[0]
+				type: "text", text: this.match[0], start: start, end: this.parser.pos
 			}]
 		}];
 	}
--- a/core/modules/parsers/wikiparser/rules/filteredtranscludeblock.js
+++ b/core/modules/parsers/wikiparser/rules/filteredtranscludeblock.js
@ -31,6 +31,16 @@ exports.init = function(parser) {

 exports.parse = function() {
 	// Move past the match
+	var filterStart = this.parser.pos + 3;
+	var filterEnd = filterStart + this.match[1].length;
+	var toolTipStart = filterEnd + 1;
+	var toolTipEnd = toolTipStart + (this.match[2] ? this.match[2].length : 0);
+	var templateStart = toolTipEnd + 2;
+	var templateEnd = templateStart + (this.match[3] ? this.match[3].length : 0);
+	var styleStart = templateEnd + 2;
+	var styleEnd = styleStart + (this.match[4] ? this.match[4].length : 0);
+	var classesStart = styleEnd + 1;
+	var classesEnd = classesStart + (this.match[5] ? this.match[5].length : 0);
 	this.parser.pos = this.matchRegExp.lastIndex;
 	// Get the match details
 	var filter = this.match[1],
@ -42,21 +52,21 @@ exports.parse = function() {
 	var node = {
 		type: "list",
 		attributes: {
-			filter: {type: "string", value: filter}
+			filter: {type: "string", value: filter, start: filterStart, end: filterEnd},
 		},
 		isBlock: true
 	};
 	if(tooltip) {
-		node.attributes.tooltip = {type: "string", value: tooltip};
+		node.attributes.tooltip = {type: "string", value: tooltip, start: toolTipStart, end: toolTipEnd};
 	}
 	if(template) {
-		node.attributes.template = {type: "string", value: template};
+		node.attributes.template = {type: "string", value: template, start: templateStart, end: templateEnd};
 	}
 	if(style) {
-		node.attributes.style = {type: "string", value: style};
+		node.attributes.style = {type: "string", value: style, start: styleStart, end: styleEnd};
 	}
 	if(classes) {
-		node.attributes.itemClass = {type: "string", value: classes.split(".").join(" ")};
+		node.attributes.itemClass = {type: "string", value: classes.split(".").join(" "), start: classesStart, end: classesEnd};
 	}
 	return [node];
 };
--- a/core/modules/parsers/wikiparser/rules/filteredtranscludeinline.js
+++ b/core/modules/parsers/wikiparser/rules/filteredtranscludeinline.js
@ -30,6 +30,16 @@ exports.init = function(parser) {
 };

 exports.parse = function() {
+	var filterStart = this.parser.pos + 3;
+	var filterEnd = filterStart + this.match[1].length;
+	var toolTipStart = filterEnd + 1;
+	var toolTipEnd = toolTipStart + (this.match[2] ? this.match[2].length : 0);
+	var templateStart = toolTipEnd + 2;
+	var templateEnd = templateStart + (this.match[3] ? this.match[3].length : 0);
+	var styleStart = templateEnd + 2;
+	var styleEnd = styleStart + (this.match[4] ? this.match[4].length : 0);
+	var classesStart = styleEnd + 1;
+	var classesEnd = classesStart + (this.match[5] ? this.match[5].length : 0);
 	// Move past the match
 	this.parser.pos = this.matchRegExp.lastIndex;
 	// Get the match details
@ -42,20 +52,20 @@ exports.parse = function() {
 	var node = {
 		type: "list",
 		attributes: {
-			filter: {type: "string", value: filter}
+			filter: {type: "string", value: filter, start: filterStart, end: filterEnd},
 		}
 	};
 	if(tooltip) {
-		node.attributes.tooltip = {type: "string", value: tooltip};
+		node.attributes.tooltip = {type: "string", value: tooltip, start: toolTipStart, end: toolTipEnd};
 	}
 	if(template) {
-		node.attributes.template = {type: "string", value: template};
+		node.attributes.template = {type: "string", value: template, start: templateStart, end: templateEnd};
 	}
 	if(style) {
-		node.attributes.style = {type: "string", value: style};
+		node.attributes.style = {type: "string", value: style, start: styleStart, end: styleEnd};
 	}
 	if(classes) {
-		node.attributes.itemClass = {type: "string", value: classes.split(".").join(" ")};
+		node.attributes.itemClass = {type: "string", value: classes.split(".").join(" "), start: classesStart, end: classesEnd};
 	}
 	return [node];
 };
--- a/core/modules/parsers/wikiparser/rules/hardlinebreaks.js
+++ b/core/modules/parsers/wikiparser/rules/hardlinebreaks.js
@ -45,10 +45,11 @@ exports.parse = function() {
 		reEnd.lastIndex = this.parser.pos;
 		match = reEnd.exec(this.parser.source);
 		if(match) {
+			var start = this.parser.pos;
 			this.parser.pos = reEnd.lastIndex;
 			// Add a line break if the terminator was a line break
 			if(match[2]) {
-				tree.push({type: "element", tag: "br"});
+				tree.push({type: "element", tag: "br", start: start, end: this.parser.pos});
 			}
 		}
 	} while(match && !match[1]);
--- a/core/modules/parsers/wikiparser/rules/heading.js
+++ b/core/modules/parsers/wikiparser/rules/heading.js
@ -30,15 +30,17 @@ exports.parse = function() {
 	// Move past the !s
 	this.parser.pos = this.matchRegExp.lastIndex;
 	// Parse any classes, whitespace and then the heading itself
+	var classStart = this.parser.pos;
 	var classes = this.parser.parseClasses();
+	var classEnd = this.parser.pos;
 	this.parser.skipWhitespace({treatNewlinesAsNonWhitespace: true});
 	var tree = this.parser.parseInlineRun(/(\r?\n)/mg);
 	// Return the heading
 	return [{
 		type: "element",
-		tag: "h" + headingLevel, 
+		tag: "h" + headingLevel,
 		attributes: {
-			"class": {type: "string", value: classes.join(" ")}
+			"class": {type: "string", value: classes.join(" "), start: classStart, end: classEnd}
 		},
 		children: tree
 	}];
--- a/core/modules/parsers/wikiparser/rules/html.js
+++ b/core/modules/parsers/wikiparser/rules/html.js
@ -44,6 +44,10 @@ Parse the most recent match
 exports.parse = function() {
 	// Retrieve the most recent match so that recursive calls don't overwrite it
 	var tag = this.nextTag;
+	if (!tag.isSelfClosing) {
+		tag.openTagStart = tag.start;
+		tag.openTagEnd = tag.end;
+	}
 	this.nextTag = null;
 	// Advance the parser position to past the tag
 	this.parser.pos = tag.end;
@ -60,6 +64,27 @@ exports.parse = function() {
 			var reEnd = new RegExp("(" + reEndString + ")","mg");
 			tag.children = this.parser.parseInlineRun(reEnd,{eatTerminator: true});
 		}
+		tag.end = this.parser.pos;
+		tag.closeTagEnd = tag.end;
+		if (tag.closeTagEnd === tag.openTagEnd || this.parser.source[tag.closeTagEnd - 1] !== '>') {
+			tag.closeTagStart = tag.end;
+		} else {
+			tag.closeTagStart = tag.closeTagEnd - 2;
+			var closeTagMinPos = tag.children.length > 0 ? tag.children[tag.children.length-1].end : tag.openTagEnd;
+			if (!Number.isSafeInteger(closeTagMinPos)) closeTagMinPos = tag.openTagEnd;
+			while (tag.closeTagStart >= closeTagMinPos) {
+				var char = this.parser.source[tag.closeTagStart];
+				if (char === '>') {
+					tag.closeTagStart = -1;
+					break;
+				}
+				if (char === '<') break;
+				tag.closeTagStart -= 1;
+			}
+			if (tag.closeTagStart < closeTagMinPos) {
+				tag.closeTagStart = tag.end;
+			}
+		}
 	}
 	// Return the tag
 	return [tag];
--- a/core/modules/parsers/wikiparser/rules/image.js
+++ b/core/modules/parsers/wikiparser/rules/image.js
@ -122,9 +122,9 @@ exports.parseImage = function(source,pos) {
 	}
 	pos = token.end;
 	if(token.match[1]) {
-		node.attributes.tooltip = {type: "string", value: token.match[1].trim()};
+		node.attributes.tooltip = {type: "string", value: token.match[1].trim(),start: token.start,end:token.start + token.match[1].length - 1};
 	}
-	node.attributes.source = {type: "string", value: (token.match[2] || "").trim()};
+	node.attributes.source = {type: "string", value: (token.match[2] || "").trim(), start: token.start + (token.match[1] ? token.match[1].length : 0), end: token.end - 2};
 	// Update the end position
 	node.end = pos;
 	return node;
--- a/core/modules/parsers/wikiparser/rules/import.js
+++ b/core/modules/parsers/wikiparser/rules/import.js
@ -38,13 +38,14 @@ exports.parse = function() {
 	// Parse the filter terminated by a line break
 	var reMatch = /(.*)(?:$|\r?\n)/mg;
 	reMatch.lastIndex = this.parser.pos;
+	var filterStart = this.parser.source;
 	var match = reMatch.exec(this.parser.source);
 	this.parser.pos = reMatch.lastIndex;
 	// Parse tree nodes to return
 	return [{
 		type: "importvariables",
 		attributes: {
-			filter: {type: "string", value: match[1]}
+			filter: {type: "string", value: match[1], start: filterStart, end: this.parser.pos}
 		},
 		children: []
 	}];
--- a/core/modules/parsers/wikiparser/rules/list.js
+++ b/core/modules/parsers/wikiparser/rules/list.js
@ -74,6 +74,7 @@ exports.parse = function() {
 		// Match the list marker
 		var reMatch = /([\*#;:>]+)/mg;
 		reMatch.lastIndex = this.parser.pos;
+		var start = this.parser.pos;
 		var match = reMatch.exec(this.parser.source);
 		if(!match || match.index !== this.parser.pos) {
 			break;
@ -94,9 +95,21 @@ exports.parse = function() {
 			}
 			// Construct the list element or reuse the previous one at this level
 			if(listStack.length <= t) {
-				var listElement = {type: "element", tag: listInfo.listTag, children: [
-					{type: "element", tag: listInfo.itemTag, children: []}
-				]};
+				var listElement = {
+					type: "element",
+					tag: listInfo.listTag,
+					children: [
+						{
+							type: "element",
+							tag: listInfo.itemTag,
+							children: [],
+							start: start,
+							end: this.parser.pos,
+						}
+					],
+					start: start,
+					end: this.parser.pos,
+				};
 				// Link this list element into the last child item of the parent list item
 				if(t) {
 					var prevListItem = listStack[t-1].children[listStack[t-1].children.length-1];
@ -105,21 +118,33 @@ exports.parse = function() {
 				// Save this element in the stack
 				listStack[t] = listElement;
 			} else if(t === (match[0].length - 1)) {
-				listStack[t].children.push({type: "element", tag: listInfo.itemTag, children: []});
+				listStack[t].children.push({
+					type: "element",
+					tag: listInfo.itemTag,
+					children: [],
+					start: start,
+					end: this.parser.pos,
+				});
 			}
 		}
 		if(listStack.length > match[0].length) {
 			listStack.splice(match[0].length,listStack.length - match[0].length);
 		}
 		// Process the body of the list item into the last list item
+		var classStart = this.parser.pos;
 		var lastListChildren = listStack[listStack.length-1].children,
 			lastListItem = lastListChildren[lastListChildren.length-1],
 			classes = this.parser.parseClasses();
+		var classEnd = this.parser.pos;
 		this.parser.skipWhitespace({treatNewlinesAsNonWhitespace: true});
 		var tree = this.parser.parseInlineRun(/(\r?\n)/mg);
 		lastListItem.children.push.apply(lastListItem.children,tree);
+		lastListItem.end = this.parser.pos;
+		listStack[listStack.length-1].end = this.parser.pos;
 		if(classes.length > 0) {
 			$tw.utils.addClassToParseTreeNode(lastListItem,classes.join(" "));
+			lastListItem.attributes.class.start = classStart;
+			lastListItem.attributes.class.end = classEnd;
 		}
 		// Consume any whitespace following the list item
 		this.parser.skipWhitespace();
--- a/core/modules/parsers/wikiparser/rules/prettyextlink.js
+++ b/core/modules/parsers/wikiparser/rules/prettyextlink.js
@ -96,15 +96,20 @@ exports.parseLink = function(source,pos) {
 		splitPos = null;
 	}
 	// Pull out the tooltip and URL
-	var tooltip, URL;
+	var tooltip, URL, urlStart;
+	textNode.start = pos;
 	if(splitPos) {
+		urlStart = splitPos + 1;
 		URL = source.substring(splitPos + 1,closePos).trim();
 		textNode.text = source.substring(pos,splitPos).trim();
+		textNode.end = splitPos;
 	} else {
+		urlStart = pos;
 		URL = source.substring(pos,closePos).trim();
 		textNode.text = URL;
+		textNode.end = closePos;
 	}
-	node.attributes.href = {type: "string", value: URL};
+	node.attributes.href = {type: "string", value: URL, start: urlStart, end: closePos};
 	node.attributes.target = {type: "string", value: "_blank"};
 	node.attributes.rel = {type: "string", value: "noopener noreferrer"};
 	// Update the end position
--- a/core/modules/parsers/wikiparser/rules/prettylink.js
+++ b/core/modules/parsers/wikiparser/rules/prettylink.js
@ -29,32 +29,39 @@ exports.init = function(parser) {

 exports.parse = function() {
 	// Move past the match
+	var start = this.parser.pos + 2;
 	this.parser.pos = this.matchRegExp.lastIndex;
 	// Process the link
 	var text = this.match[1],
-		link = this.match[2] || text;
+		link = this.match[2] || text,
+		textEndPos = this.parser.source.indexOf("|", start);
+	if (textEndPos < 0 || textEndPos > this.matchRegExp.lastIndex) {
+		textEndPos = this.matchRegExp.lastIndex - 2;
+	}
+	var linkStart = this.match[2] ? (start + this.match[1].length + 1) : start;
+	var linkEnd = linkStart + link.length;
 	if($tw.utils.isLinkExternal(link)) {
 		return [{
 			type: "element",
 			tag: "a",
 			attributes: {
-				href: {type: "string", value: link},
+				href: {type: "string", value: link, start: linkStart, end: linkEnd},
 				"class": {type: "string", value: "tc-tiddlylink-external"},
 				target: {type: "string", value: "_blank"},
 				rel: {type: "string", value: "noopener noreferrer"}
 			},
 			children: [{
-				type: "text", text: text
+				type: "text", text: text, start: start, end: textEndPos
 			}]
 		}];
 	} else {
 		return [{
 			type: "link",
 			attributes: {
-				to: {type: "string", value: link}
+				to: {type: "string", value: link, start: linkStart, end: linkEnd}
 			},
 			children: [{
-				type: "text", text: text
+				type: "text", text: text, start: start, end: textEndPos
 			}]
 		}];
 	}
--- a/core/modules/parsers/wikiparser/rules/quoteblock.js
+++ b/core/modules/parsers/wikiparser/rules/quoteblock.js
@ -3,30 +3,7 @@ title: $:/core/modules/parsers/wikiparser/rules/quoteblock.js
 type: application/javascript
 module-type: wikirule

-Wiki text rule for quote blocks. For example:
-
-```
-	<<<.optionalClass(es) optional cited from
-	a quote
-	<<<
-	
-	<<<.optionalClass(es)
-	a quote
-	<<< optional cited from
-```
-
-Quotes can be quoted by putting more <s
-
-```
-	<<<
-	Quote Level 1
-	
-	<<<<
-	QuoteLevel 2
-	<<<<
-	
-	<<<
-```
+Wiki text rule for quote blocks.

 \*/
 (function(){
@ -47,33 +24,42 @@ exports.init = function(parser) {
 exports.parse = function() {
 	var classes = ["tc-quote"];
 	// Get all the details of the match
-	var reEndString = "^" + this.match[1] + "(?!<)";
+	var reEndString = "^\\s*" + this.match[1] + "(?!<)";
 	// Move past the <s
 	this.parser.pos = this.matchRegExp.lastIndex;
-	
 	// Parse any classes, whitespace and then the optional cite itself
+	var classStart = this.parser.pos;
 	classes.push.apply(classes, this.parser.parseClasses());
+	var classEnd = this.parser.pos;
 	this.parser.skipWhitespace({treatNewlinesAsNonWhitespace: true});
+	var citeStart = this.parser.pos;
 	var cite = this.parser.parseInlineRun(/(\r?\n)/mg);
+	var citeEnd = this.parser.pos;
 	// before handling the cite, parse the body of the quote
-	var tree= this.parser.parseBlocks(reEndString);
+	var tree = this.parser.parseBlocks(reEndString);
 	// If we got a cite, put it before the text
 	if(cite.length > 0) {
 		tree.unshift({
 			type: "element",
 			tag: "cite",
-			children: cite
+			children: cite,
+			start: citeStart,
+			end: citeEnd
 		});
 	}
 	// Parse any optional cite
 	this.parser.skipWhitespace({treatNewlinesAsNonWhitespace: true});
+	citeStart = this.parser.pos;
 	cite = this.parser.parseInlineRun(/(\r?\n)/mg);
+	citeEnd = this.parser.pos;
 	// If we got a cite, push it
 	if(cite.length > 0) {
 		tree.push({
 			type: "element",
 			tag: "cite",
-			children: cite
+			children: cite,
+			start: citeStart,
+			end: citeEnd
 		});
 	}
 	// Return the blockquote element
@ -81,7 +67,7 @@ exports.parse = function() {
 		type: "element",
 		tag: "blockquote",
 		attributes: {
-			class: { type: "string", value: classes.join(" ") },
+			class: { type: "string", value: classes.join(" "), start: classStart, end: classEnd },
 		},
 		children: tree
 	}];
--- a/core/modules/parsers/wikiparser/rules/syslink.js
+++ b/core/modules/parsers/wikiparser/rules/syslink.js
@ -29,10 +29,11 @@ exports.init = function(parser) {
 exports.parse = function() {
 	var match = this.match[0];
 	// Move past the match
+	var start = this.parser.pos;
 	this.parser.pos = this.matchRegExp.lastIndex;
 	// Create the link unless it is suppressed
 	if(match.substr(0,1) === "~") {
-		return [{type: "text", text: match.substr(1)}];
+		return [{type: "text", text: match.substr(1), start: start+1, end: this.parser.pos}];
 	} else {
 		return [{
 			type: "link",
@ -41,10 +42,12 @@ exports.parse = function() {
 			},
 			children: [{
 				type: "text",
-				text: match
+				text: match,
+				start: start,
+				end: this.parser.pos
 			}]
 		}];
 	}
 };

-})();
+})();
--- a/core/modules/parsers/wikiparser/rules/table.js
+++ b/core/modules/parsers/wikiparser/rules/table.js
@ -93,11 +93,12 @@ var processRow = function(prevColumns) {
 			}
 			// Check whether this is a heading cell
 			var cell;
+			var start = this.parser.pos;
 			if(chr === "!") {
 				this.parser.pos++;
-				cell = {type: "element", tag: "th", children: []};
+				cell = {type: "element", tag: "th", start: start, children: []};
 			} else {
-				cell = {type: "element", tag: "td", children: []};
+				cell = {type: "element", tag: "td", start: start, children: []};
 			}
 			tree.push(cell);
 			// Record information about this cell
@ -121,6 +122,7 @@ var processRow = function(prevColumns) {
 			}
 			// Move back to the closing `|`
 			this.parser.pos--;
+			cell.end = this.parser.pos;
 		}
 		col++;
 		cellRegExp.lastIndex = this.parser.pos;
@ -150,7 +152,7 @@ exports.parse = function() {
 		} else {
 			// Otherwise, create a new row if this one is of a different type
 			if(rowType !== currRowType) {
-				rowContainer = {type: "element", tag: rowContainerTypes[rowType], children: []};
+				rowContainer = {type: "element", tag: rowContainerTypes[rowType], children: [], start: this.parser.pos, end: this.parser.pos};
 				table.children.push(rowContainer);
 				currRowType = rowType;
 			}
@ -169,15 +171,17 @@ exports.parse = function() {
 				rowContainer.children = this.parser.parseInlineRun(rowTermRegExp,{eatTerminator: true});
 			} else {
 				// Create the row
-				var theRow = {type: "element", tag: "tr", children: []};
+				var theRow = {type: "element", tag: "tr", children: [], start: rowMatch.index};
 				$tw.utils.addClassToParseTreeNode(theRow,rowCount%2 ? "oddRow" : "evenRow");
 				rowContainer.children.push(theRow);
 				// Process the row
 				theRow.children = processRow.call(this,prevColumns);
 				this.parser.pos = rowMatch.index + rowMatch[0].length;
+				theRow.end = this.parser.pos;
 				// Increment the row count
 				rowCount++;
 			}
+			rowContainer.end = this.parser.pos;
 		}
 		rowMatch = rowRegExp.exec(this.parser.source);
 	}
--- a/core/modules/parsers/wikiparser/rules/typedblock.js
+++ b/core/modules/parsers/wikiparser/rules/typedblock.js
@ -46,6 +46,7 @@ exports.parse = function() {
 		renderType = this.match[2];
 	// Move past the match
 	this.parser.pos = this.matchRegExp.lastIndex;
+	var start = this.parser.pos;
 	// Look for the end of the block
 	reEnd.lastIndex = this.parser.pos;
 	var match = reEnd.exec(this.parser.source),
@ -74,7 +75,9 @@ exports.parse = function() {
 			tag: "pre",
 			children: [{
 				type: "text",
-				text: text
+				text: text,
+				start: start,
+				end: this.parser.pos
 			}]
 		}];
 	}
--- a/core/modules/parsers/wikiparser/rules/wikilink.js
+++ b/core/modules/parsers/wikiparser/rules/wikilink.js
@ -36,6 +36,7 @@ exports.parse = function() {
 	// Get the details of the match
 	var linkText = this.match[0];
 	// Move past the macro call
+	var start = this.parser.pos;
 	this.parser.pos = this.matchRegExp.lastIndex;
 	// If the link starts with the unwikilink character then just output it as plain text
 	if(linkText.substr(0,1) === $tw.config.textPrimitives.unWikiLink) {
@ -57,7 +58,9 @@ exports.parse = function() {
 		},
 		children: [{
 			type: "text",
-			text: linkText
+			text: linkText,
+			start: start,
+			end: this.parser.pos
 		}]
 	}];
 };
--- a/core/modules/parsers/wikiparser/wikiparser.js
+++ b/core/modules/parsers/wikiparser/wikiparser.js
@ -91,6 +91,11 @@ var WikiParser = function(type,text,options) {
 	} else {
 		topBranch.push.apply(topBranch,this.parseBlocks());
 	}
+	// Build rules' name map
+	this.usingRuleMap = {};
+	$tw.utils.each(this.pragmaRules, function (ruleInfo) { self.usingRuleMap[ruleInfo.rule.name] = Object.getPrototypeOf(ruleInfo.rule); });
+	$tw.utils.each(this.blockRules, function (ruleInfo) { self.usingRuleMap[ruleInfo.rule.name] = Object.getPrototypeOf(ruleInfo.rule); });
+	$tw.utils.each(this.inlineRules, function (ruleInfo) { self.usingRuleMap[ruleInfo.rule.name] = Object.getPrototypeOf(ruleInfo.rule); });
 	// Return the parse tree
 };

@ -209,8 +214,13 @@ WikiParser.prototype.parsePragmas = function() {
 			break;
 		}
 		// Process the pragma rule
+		var start = this.pos;
 		var subTree = nextMatch.rule.parse();
 		if(subTree.length > 0) {
+			// Set the start and end positions of the pragma rule if
+			if (subTree[0].start === undefined) subTree[0].start = start;
+			if (subTree[subTree.length - 1].end === undefined) subTree[subTree.length - 1].end = this.pos;
+			$tw.utils.each(subTree, function (node) { node.rule = nextMatch.rule.name; });
 			// Quick hack; we only cope with a single parse tree node being returned, which is true at the moment
 			currentTreeBranch.push.apply(currentTreeBranch,subTree);
 			subTree[0].children = [];
@ -235,7 +245,15 @@ WikiParser.prototype.parseBlock = function(terminatorRegExpString) {
 	// Look for a block rule that applies at the current position
 	var nextMatch = this.findNextMatch(this.blockRules,this.pos);
 	if(nextMatch && nextMatch.matchIndex === this.pos) {
-		return nextMatch.rule.parse();
+		var start = this.pos;
+		var subTree = nextMatch.rule.parse();
+		// Set the start and end positions of the first and last blocks if they're not already set
+		if (subTree.length > 0) {
+			if (subTree[0].start === undefined) subTree[0].start = start;
+			if (subTree[subTree.length - 1].end === undefined) subTree[subTree.length - 1].end = this.pos;
+		}
+		$tw.utils.each(subTree, function (node) { node.rule = nextMatch.rule.name; });
+		return subTree;
 	}
 	// Treat it as a paragraph if we didn't find a block rule
 	var start = this.pos;
@ -332,7 +350,16 @@ WikiParser.prototype.parseInlineRunUnterminated = function(options) {
 			this.pos = nextMatch.matchIndex;
 		}
 		// Process the run rule
-		tree.push.apply(tree,nextMatch.rule.parse());
+		var start = this.pos;
+		var subTree = nextMatch.rule.parse();
+		// Set the start and end positions of the first and last child if they're not already set
+		if (subTree.length > 0) {
+			// Set the start and end positions of the first and last child if they're not already set
+			if (subTree[0].start === undefined) subTree[0].start = start;
+			if (subTree[subTree.length - 1].end === undefined) subTree[subTree.length - 1].end = this.pos;
+		}
+		$tw.utils.each(subTree, function (node) { node.rule = nextMatch.rule.name; });
+		tree.push.apply(tree,subTree);
 		// Look for the next run rule
 		nextMatch = this.findNextMatch(this.inlineRules,this.pos);
 	}
@ -383,7 +410,15 @@ WikiParser.prototype.parseInlineRunTerminatedExtended = function(terminatorRegEx
 				this.pos = inlineRuleMatch.matchIndex;
 			}
 			// Process the inline rule
-			tree.push.apply(tree,inlineRuleMatch.rule.parse());
+			var start = this.pos;
+			var subTree = inlineRuleMatch.rule.parse();
+			// Set the start and end positions of the first and last child if they're not already set
+			if (subTree.length > 0) {
+				if (subTree[0].start === undefined) subTree[0].start = start;
+				if (subTree[subTree.length - 1].end === undefined) subTree[subTree.length - 1].end = this.pos;
+			}
+			$tw.utils.each(subTree, function (node) { node.rule = inlineRuleMatch.rule.name; });
+			tree.push.apply(tree,subTree);
 			// Look for the next inline rule
 			inlineRuleMatch = this.findNextMatch(this.inlineRules,this.pos);
 			// Look for the next terminator match
@ -409,7 +444,7 @@ WikiParser.prototype.pushTextWidget = function(array,text,start,end) {
 		text = $tw.utils.trim(text);
 	}
 	if(text) {
-		array.push({type: "text", text: text, start: start, end: end});		
+		array.push({type: "text", text: text, start: start, end: end});
 	}
 };

@ -462,4 +497,3 @@ WikiParser.prototype.amendRules = function(type,names) {
 exports["text/vnd.tiddlywiki"] = WikiParser;

 })();
-
--- a/core/modules/saver-handler.js
+++ b/core/modules/saver-handler.js
@ -95,6 +95,7 @@ function SaverHandler(options) {
 	if($tw.browser) {
 		$tw.rootWidget.addEventListener("tm-save-wiki",function(event) {
 			self.saveWiki({
+				wiki: event.widget.wiki,
 				template: event.param,
 				downloadType: "text/plain",
 				variables: event.paramObject
@ -102,6 +103,7 @@ function SaverHandler(options) {
 		});
 		$tw.rootWidget.addEventListener("tm-download-file",function(event) {
 			self.saveWiki({
+				wiki: event.widget.wiki,
 				method: "download",
 				template: event.param,
 				downloadType: "text/plain",
@ -147,20 +149,22 @@ Save the wiki contents. Options are:
 	method: "save", "autosave" or "download"
 	template: the tiddler containing the template to save
 	downloadType: the content type for the saved file
+	wiki: optional wiki, overriding the default wiki specified in the constructor
 */
 SaverHandler.prototype.saveWiki = function(options) {
 	options = options || {};
 	var self = this,
+		wiki = options.wiki || this.wiki,
 		method = options.method || "save";
 	// Ignore autosave if disabled
-	if(method === "autosave" && ($tw.config.disableAutoSave || this.wiki.getTiddlerText(this.titleAutoSave,"yes") !== "yes")) {
+	if(method === "autosave" && ($tw.config.disableAutoSave || wiki.getTiddlerText(this.titleAutoSave,"yes") !== "yes")) {
 		return false;
 	}
 	var	variables = options.variables || {},
 		template = (options.template || 
-		           this.wiki.getTiddlerText("$:/config/SaveWikiButton/Template","$:/core/save/all")).trim(),
+		           wiki.getTiddlerText("$:/config/SaveWikiButton/Template","$:/core/save/all")).trim(),
 		downloadType = options.downloadType || "text/plain",
-		text = this.wiki.renderTiddler(downloadType,template,options),
+		text = wiki.renderTiddler(downloadType,template,options),
 		callback = function(err) {
 			if(err) {
 				alert($tw.language.getString("Error/WhileSaving") + ":\n\n" + err);
--- a/core/modules/savers/put.js
+++ b/core/modules/savers/put.js
@ -48,7 +48,7 @@ var PutSaver = function(wiki) {
 	var self = this;
 	var uri = this.uri();
 	// Async server probe. Until probe finishes, save will fail fast
-	// See also https://github.com/Jermolene/TiddlyWiki5/issues/2276
+	// See also https://github.com/TiddlyWiki/TiddlyWiki5/issues/2276
 	$tw.utils.httpRequest({
 		url: uri,
 		type: "OPTIONS",
--- a/core/modules/server/authenticators/header.js
+++ b/core/modules/server/authenticators/header.js
@ -37,7 +37,9 @@ HeaderAuthenticator.prototype.authenticateRequest = function(request,response,st
 		return false;
 	} else {
 		// authenticatedUsername will be undefined for anonymous users
-		state.authenticatedUsername = $tw.utils.decodeURIComponentSafe(username);
+		if(username) {
+			state.authenticatedUsername = $tw.utils.decodeURIComponentSafe(username);
+		}
 		return true;
 	}
 };
--- a/core/modules/server/server.js
+++ b/core/modules/server/server.js
@ -140,6 +140,11 @@ function sendResponse(request,response,statusCode,headers,data,encoding) {
 				return;
 			}
 		}
+	} else {
+		// RFC 7231, 6.1. Overview of Status Codes:
+		// Browser clients may cache 200, 203, 204, 206, 300, 301, 
+		// 404, 405, 410, 414, and 501 unless given explicit cache controls
+		headers["Cache-Control"] = headers["Cache-Control"] || "no-store";
 	}
 	/*
 	If the gzip=yes is set, check if the user agent permits compression. If so,
--- a/core/modules/startup/plugins.js
+++ b/core/modules/startup/plugins.js
@ -61,7 +61,7 @@ exports.startup = function() {
 				// Collect the shadow tiddlers of any modified plugins
 				$tw.utils.each(changes.modifiedPlugins,function(pluginTitle) {
 					var pluginInfo = $tw.wiki.getPluginInfo(pluginTitle);
-					if(pluginInfo) {
+					if(pluginInfo && pluginInfo.tiddlers) {
 						$tw.utils.each(Object.keys(pluginInfo.tiddlers),function(title) {
 							changedShadowTiddlers[title] = false;
 						});
--- a/core/modules/startup/render.js
+++ b/core/modules/startup/render.js
@ -29,7 +29,11 @@ var THROTTLE_REFRESH_TIMEOUT = 400;

 exports.startup = function() {
 	// Set up the title
-	$tw.titleWidgetNode = $tw.wiki.makeTranscludeWidget(PAGE_TITLE_TITLE,{document: $tw.fakeDocument, parseAsInline: true});
+	$tw.titleWidgetNode = $tw.wiki.makeTranscludeWidget(PAGE_TITLE_TITLE, {
+		document: $tw.fakeDocument,
+		parseAsInline: true,
+		importPageMacros: true,
+	});
 	$tw.titleContainer = $tw.fakeDocument.createElement("div");
 	$tw.titleWidgetNode.render($tw.titleContainer,null);
 	document.title = $tw.titleContainer.textContent;
@ -81,6 +85,8 @@ exports.startup = function() {
 		deferredChanges = Object.create(null);
 		$tw.hooks.invokeHook("th-page-refreshed");
 	}
+	var throttledRefresh = $tw.perf.report("throttledRefresh",refresh);
+
 	// Add the change event handler
 	$tw.wiki.addEventListener("change",$tw.perf.report("mainRefresh",function(changes) {
 		// Check if only tiddlers that are throttled have changed
@ -101,7 +107,7 @@ exports.startup = function() {
 			if(isNaN(timeout)) {
 				timeout = THROTTLE_REFRESH_TIMEOUT;
 			}
-			timerId = setTimeout(refresh,timeout);
+			timerId = setTimeout(throttledRefresh,timeout);
 			$tw.utils.extend(deferredChanges,changes);
 		} else {
 			$tw.utils.extend(deferredChanges,changes);
--- a/core/modules/startup/rootwidget.js
+++ b/core/modules/startup/rootwidget.js
@ -39,6 +39,7 @@ exports.startup = function() {
 			method: params.method,
 			body: params.body,
 			binary: params.binary,
+			useDefaultHeaders: params.useDefaultHeaders,
 			oncompletion: params.oncompletion,
 			onprogress: params.onprogress,
 			bindStatus: params["bind-status"],
@ -47,7 +48,11 @@ exports.startup = function() {
 			headers: getPropertiesWithPrefix(params,"header-"),
 			passwordHeaders: getPropertiesWithPrefix(params,"password-header-"),
 			queryStrings: getPropertiesWithPrefix(params,"query-"),
-			passwordQueryStrings: getPropertiesWithPrefix(params,"password-query-")
+			passwordQueryStrings: getPropertiesWithPrefix(params,"password-query-"),
+			basicAuthUsername: params["basic-auth-username"],
+			basicAuthUsernameFromStore: params["basic-auth-username-from-store"],
+			basicAuthPassword: params["basic-auth-password"],
+			basicAuthPasswordFromStore: params["basic-auth-password-from-store"]
 		});
 	});
 	$tw.rootWidget.addEventListener("tm-http-cancel-all-requests",function(event) {
@ -68,7 +73,10 @@ exports.startup = function() {
 	});
 	// Install the copy-to-clipboard  mechanism
 	$tw.rootWidget.addEventListener("tm-copy-to-clipboard",function(event) {
-		$tw.utils.copyToClipboard(event.param);
+		$tw.utils.copyToClipboard(event.param,{
+			successNotification: event.paramObject && event.paramObject.successNotification,
+			failureNotification: event.paramObject && event.paramObject.failureNotification
+		});
 	});
 	// Install the tm-focus-selector message
 	$tw.rootWidget.addEventListener("tm-focus-selector",function(event) {
--- a/core/modules/startup/story.js
+++ b/core/modules/startup/story.js
@ -93,7 +93,9 @@ exports.startup = function() {
 				updateAddressBar: $tw.wiki.getTiddlerText(CONFIG_PERMALINKVIEW_UPDATE_ADDRESS_BAR,"yes").trim() === "yes" ? "permalink" : "none",
 				updateHistory: $tw.wiki.getTiddlerText(CONFIG_UPDATE_HISTORY,"no").trim(),
 				targetTiddler: event.param || event.tiddlerTitle,
-				copyToClipboard: $tw.wiki.getTiddlerText(CONFIG_PERMALINKVIEW_COPY_TO_CLIPBOARD,"yes").trim() === "yes" ? "permalink" : "none"
+				copyToClipboard: $tw.wiki.getTiddlerText(CONFIG_PERMALINKVIEW_COPY_TO_CLIPBOARD,"yes").trim() === "yes" ? "permalink" : "none",
+				successNotification: event.paramObject && event.paramObject.successNotification,
+				failureNotification: event.paramObject && event.paramObject.failureNotification
 			});
 		});
 		// Listen for the tm-permaview message
@ -102,7 +104,9 @@ exports.startup = function() {
 				updateAddressBar: $tw.wiki.getTiddlerText(CONFIG_PERMALINKVIEW_UPDATE_ADDRESS_BAR,"yes").trim() === "yes" ? "permaview" : "none",
 				updateHistory: $tw.wiki.getTiddlerText(CONFIG_UPDATE_HISTORY,"no").trim(),
 				targetTiddler: event.param || event.tiddlerTitle,
-				copyToClipboard: $tw.wiki.getTiddlerText(CONFIG_PERMALINKVIEW_COPY_TO_CLIPBOARD,"yes").trim() === "yes" ? "permaview" : "none"
+				copyToClipboard: $tw.wiki.getTiddlerText(CONFIG_PERMALINKVIEW_COPY_TO_CLIPBOARD,"yes").trim() === "yes" ? "permaview" : "none",
+				successNotification: event.paramObject && event.paramObject.successNotification,
+				failureNotification: event.paramObject && event.paramObject.failureNotification
 			});
 		});
 	}
@ -177,6 +181,8 @@ options.updateAddressBar: "permalink", "permaview" or "no" (defaults to "permavi
 options.updateHistory: "yes" or "no" (defaults to "no")
 options.copyToClipboard: "permalink", "permaview" or "no" (defaults to "no")
 options.targetTiddler: optional title of target tiddler for permalink
+options.successNotification: optional title of tiddler to use as the notification in case of success
+options.failureNotification: optional title of tiddler to use as the notification in case of failure
 */
 function updateLocationHash(options) {
 	// Get the story and the history stack
@ -205,14 +211,18 @@ function updateLocationHash(options) {
 			break;
 	}
 	// Copy URL to the clipboard
+	var url = "";
 	switch(options.copyToClipboard) {
 		case "permalink":
-			$tw.utils.copyToClipboard($tw.utils.getLocationPath() + "#" + encodeURIComponent(targetTiddler));
+			url = $tw.utils.getLocationPath() + "#" + encodeURIComponent(targetTiddler);
 			break;
 		case "permaview":
-			$tw.utils.copyToClipboard($tw.utils.getLocationPath() + "#" + encodeURIComponent(targetTiddler) + ":" + encodeURIComponent($tw.utils.stringifyList(storyList)));
+			url = $tw.utils.getLocationPath() + "#" + encodeURIComponent(targetTiddler) + ":" + encodeURIComponent($tw.utils.stringifyList(storyList));
 			break;
 	}
+	if(url) {
+		$tw.utils.copyToClipboard(url,{successNotification: options.successNotification, failureNotification: options.failureNotification});
+	}
 	// Only change the location hash if we must, thus avoiding unnecessary onhashchange events
 	if($tw.utils.getLocationHash() !== $tw.locationHash) {
 		if(options.updateHistory === "yes") {
--- a/core/modules/startup/windows.js
+++ b/core/modules/startup/windows.js
@ -56,7 +56,7 @@ exports.startup = function() {
 			return;
 		}
 		// Initialise the document
-		srcDocument.write("<html><head></head><body class='tc-body tc-single-tiddler-window'></body></html>");
+		srcDocument.write("<!DOCTYPE html><head></head><body class='tc-body tc-single-tiddler-window'></body></html>");
 		srcDocument.close();
 		srcDocument.title = windowTitle;
 		srcWindow.addEventListener("beforeunload",function(event) {
--- a/core/modules/storyviews/classic.js
+++ b/core/modules/storyviews/classic.js
@ -30,12 +30,8 @@ ClassicStoryView.prototype.navigateTo = function(historyInfo) {
 	if(!targetElement || targetElement.nodeType === Node.TEXT_NODE) {
 		return;
 	}
-	if(duration) {
-		// Scroll the node into view
-		this.listWidget.dispatchEvent({type: "tm-scroll", target: targetElement});
-	} else {
-		targetElement.scrollIntoView();
-	}
+	// Scroll the node into view
+	this.listWidget.dispatchEvent({type: "tm-scroll", target: targetElement});
 };

 ClassicStoryView.prototype.insert = function(widget) {
@ -82,6 +78,10 @@ ClassicStoryView.prototype.remove = function(widget) {
 			removeElement = function() {
 				widget.removeChildDomNodes();
 			};
+		// Blur the focus if it is within the descendents of the node we are removing
+		if($tw.utils.domContains(targetElement,targetElement.ownerDocument.activeElement)) {
+			targetElement.ownerDocument.activeElement.blur();
+		}
 		// Abandon if the list entry isn't a DOM element (it might be a text node)
 		if(!targetElement || targetElement.nodeType === Node.TEXT_NODE) {
 			removeElement();
--- a/core/modules/upgraders/system.js
+++ b/core/modules/upgraders/system.js
@ -12,7 +12,7 @@ Upgrader module that suppresses certain system tiddlers that shouldn't be import
 /*global $tw: false */
 "use strict";

-var DONT_IMPORT_LIST = ["$:/Import"],
+var DONT_IMPORT_LIST = ["$:/Import", "$:/build"],
 	UNSELECT_PREFIX_LIST = ["$:/temp/","$:/state/","$:/StoryList","$:/HistoryList"],
 	WARN_IMPORT_PREFIX_LIST = ["$:/core/modules/"];

--- a/core/modules/utils/dom/dom.js
+++ b/core/modules/utils/dom/dom.js
@ -270,6 +270,7 @@ Copy plain text to the clipboard on browsers that support it
 */
 exports.copyToClipboard = function(text,options) {
 	options = options || {};
+	text = text || "";
 	var textArea = document.createElement("textarea");
 	textArea.style.position = "fixed";
 	textArea.style.top = 0;
@ -289,10 +290,12 @@ exports.copyToClipboard = function(text,options) {
 	var succeeded = false;
 	try {
 		succeeded = document.execCommand("copy");
-	} catch (err) {
+	} catch(err) {
 	}
 	if(!options.doNotNotify) {
-		$tw.notifier.display(succeeded ? "$:/language/Notifications/CopiedToClipboard/Succeeded" : "$:/language/Notifications/CopiedToClipboard/Failed");
+		var successNotification = options.successNotification || "$:/language/Notifications/CopiedToClipboard/Succeeded",
+			failureNotification = options.failureNotification || "$:/language/Notifications/CopiedToClipboard/Failed"
+		$tw.notifier.display(succeeded ? successNotification : failureNotification);
 	}
 	document.body.removeChild(textArea);
 };
@ -324,7 +327,7 @@ exports.collectDOMVariables = function(selectedNode,domNode,event) {
 			variables["tv-popup-coords"] = Popup.buildCoordinates(Popup.coordinatePrefix.csOffsetParent,nodeRect);

 			var absRect = $tw.utils.extend({}, nodeRect);
-			for (var currentNode = selectedNode.offsetParent; currentNode; currentNode = currentNode.offsetParent) {
+			for(var currentNode = selectedNode.offsetParent; currentNode; currentNode = currentNode.offsetParent) {
 				absRect.left += currentNode.offsetLeft;
 				absRect.top += currentNode.offsetTop;
 			}
--- a/core/modules/utils/dom/http.js
+++ b/core/modules/utils/dom/http.js
@ -69,7 +69,7 @@ HttpClient.prototype.cancelAllHttpRequests = function() {
 		for(var t=this.requests.length - 1; t--; t>=0) {
 			var requestInfo = this.requests[t];
 			requestInfo.request.cancel();
-		}	
+		}
 	}
 	this.requests = [];
 	this.updateRequestTracker();
@ -100,6 +100,10 @@ headers: hashmap of header name to header value to be sent with the request
 passwordHeaders: hashmap of header name to password store name to be sent with the request
 queryStrings: hashmap of query string parameter name to parameter value to be sent with the request
 passwordQueryStrings: hashmap of query string parameter name to password store name to be sent with the request
+basicAuthUsername: plain username for basic authentication
+basicAuthUsernameFromStore: name of password store entry containing username
+basicAuthPassword: plain password for basic authentication
+basicAuthPasswordFromStore: name of password store entry containing password
 */
 function HttpClientRequest(options) {
 	var self = this;
@ -112,6 +116,7 @@ function HttpClientRequest(options) {
 	this.method = options.method || "GET";
 	this.body = options.body || "";
 	this.binary = options.binary || "";
+	this.useDefaultHeaders = options.useDefaultHeaders !== "false" ? true : false,
 	this.variables = options.variables;
 	var url = options.url;
 	$tw.utils.each(options.queryStrings,function(value,name) {
@ -128,6 +133,11 @@ function HttpClientRequest(options) {
 	$tw.utils.each(options.passwordHeaders,function(value,name) {
 		self.requestHeaders[name] = $tw.utils.getPassword(value) || "";
 	});
+	this.basicAuthUsername = options.basicAuthUsername || (options.basicAuthUsernameFromStore && $tw.utils.getPassword(options.basicAuthUsernameFromStore)) || "";
+	this.basicAuthPassword = options.basicAuthPassword || (options.basicAuthPasswordFromStore && $tw.utils.getPassword(options.basicAuthPasswordFromStore)) || "";
+	if(this.basicAuthUsername && this.basicAuthPassword) {
+		this.requestHeaders.Authorization = "Basic " + $tw.utils.base64Encode(this.basicAuthUsername + ":" + this.basicAuthPassword);
+	}
 }

 HttpClientRequest.prototype.send = function(callback) {
@ -156,6 +166,7 @@ HttpClientRequest.prototype.send = function(callback) {
 		this.xhr = $tw.utils.httpRequest({
 			url: this.url,
 			type: this.method,
+			useDefaultHeaders: this.useDefaultHeaders,
 			headers: this.requestHeaders,
 			data: this.body,
 			returnProp: this.binary === "" ? "responseText" : "response",
@ -231,7 +242,8 @@ Make an HTTP request. Options are:
 exports.httpRequest = function(options) {
 	var type = options.type || "GET",
 		url = options.url,
-		headers = options.headers || {accept: "application/json"},
+		useDefaultHeaders = options.useDefaultHeaders !== false ? true : false,
+		headers = options.headers || (useDefaultHeaders ? {accept: "application/json"} : {}),
 		hasHeader = function(targetHeader) {
 			targetHeader = targetHeader.toLowerCase();
 			var result = false;
@ -257,7 +269,7 @@ exports.httpRequest = function(options) {
 			if(hasHeader("Content-Type") && ["application/x-www-form-urlencoded","multipart/form-data","text/plain"].indexOf(getHeader["Content-Type"]) === -1) {
 				return false;
 			}
-			return true;	
+			return true;
 		},
 		returnProp = options.returnProp || "responseText",
 		request = new XMLHttpRequest(),
@ -283,7 +295,7 @@ exports.httpRequest = function(options) {
 	// Set up the state change handler
 	request.onreadystatechange = function() {
 		if(this.readyState === 4) {
-			if(this.status === 200 || this.status === 201 || this.status === 204) {
+			if(this.status >= 200 && this.status < 300) {
 				// Success!
 				options.callback(null,this[returnProp],this);
 				return;
@ -307,10 +319,10 @@ exports.httpRequest = function(options) {
 			request.setRequestHeader(headerTitle,header);
 		});
 	}
-	if(data && !hasHeader("Content-Type")) {
+	if(data && !hasHeader("Content-Type") && useDefaultHeaders) {
 		request.setRequestHeader("Content-Type","application/x-www-form-urlencoded; charset=UTF-8");
 	}
-	if(!hasHeader("X-Requested-With") && !isSimpleRequest(type,headers)) {
+	if(!hasHeader("X-Requested-With") && !isSimpleRequest(type,headers) && useDefaultHeaders) {
 		request.setRequestHeader("X-Requested-With","TiddlyWiki");
 	}
 	// Send data
--- a/core/modules/utils/edition-info.js
+++ b/core/modules/utils/edition-info.js
@ -29,10 +29,14 @@ exports.getEditionInfo = function() {
 			for(var entryIndex=0; entryIndex<entries.length; entryIndex++) {
 				var entry = entries[entryIndex];
 				// Check if directories have a valid tiddlywiki.info
-				if(!editionInfo[entry] && $tw.utils.isDirectory(path.resolve(editionPath,entry))) {
-					var info = $tw.utils.parseJSONSafe(fs.readFileSync(path.resolve(editionPath,entry,"tiddlywiki.info"),"utf8"),null);
-					if(info) {
-						editionInfo[entry] = info;
+				// Check if the entry is a hidden directory
+				if((entry.charAt(0) !== ".") && !editionInfo[entry] && $tw.utils.isDirectory(path.resolve(editionPath,entry))) {
+					var file=path.resolve(editionPath,entry,"tiddlywiki.info");
+					if(fs.existsSync(file)) {
+						var info = $tw.utils.parseJSONSafe(fs.readFileSync(file,"utf8"),null);
+						if(info) {
+							editionInfo[entry] = info;
+						}
 					}
 				}
 			}
@ -41,4 +45,4 @@ exports.getEditionInfo = function() {
 	return editionInfo;
 };

-})();
+})();
--- a/core/modules/utils/errors.js
+++ b/core/modules/utils/errors.js
@ -0,0 +1,23 @@
+/*\
+title: $:/core/modules/utils/errors.js
+type: application/javascript
+module-type: utils
+
+Custom errors for TiddlyWiki.
+
+\*/
+(function(){
+
+function TranscludeRecursionError() {
+	Error.apply(this,arguments);
+	this.signatures = Object.create(null);
+};
+
+/* Maximum permitted depth of the widget tree for recursion detection */
+TranscludeRecursionError.MAX_WIDGET_TREE_DEPTH = 1000;
+
+TranscludeRecursionError.prototype = Object.create(Error);
+
+exports.TranscludeRecursionError = TranscludeRecursionError;
+
+})();
--- a/core/modules/utils/fakedom.js
+++ b/core/modules/utils/fakedom.js
@ -42,7 +42,7 @@ var TW_TextNode = function(text) {
 	this.textContent = text + "";
 };

-Object.setPrototypeOf(TW_TextNode,TW_Node.prototype);
+Object.setPrototypeOf(TW_TextNode.prototype,TW_Node.prototype);

 Object.defineProperty(TW_TextNode.prototype, "nodeType", {
 	get: function() {
@ -67,7 +67,7 @@ var TW_Element = function(tag,namespace) {
 	this.namespaceURI = namespace || "http://www.w3.org/1999/xhtml";
 };

-Object.setPrototypeOf(TW_Element,TW_Node.prototype);
+Object.setPrototypeOf(TW_Element.prototype,TW_Node.prototype);

 Object.defineProperty(TW_Element.prototype, "style", {
 	get: function() {
--- a/core/modules/utils/filesystem.js
+++ b/core/modules/utils/filesystem.js
@ -238,7 +238,7 @@ exports.generateTiddlerFileInfo = function(tiddler,options) {
 	} else {
 		// Save as a .tid or a text/binary file plus a .meta file
 		var tiddlerType = tiddler.fields.type || "text/vnd.tiddlywiki";
-		if(tiddlerType === "text/vnd.tiddlywiki" || tiddler.hasField("_canonical_uri")) {
+		if(tiddlerType === "text/vnd.tiddlywiki" || tiddlerType === "text/vnd.tiddlywiki-multiple" || tiddler.hasField("_canonical_uri")) {
 			// Save as a .tid file
 			fileInfo.type = "application/x-tiddler";
 			fileInfo.hasMetaFile = false;
@ -316,11 +316,13 @@ Options include:
 	pathFilters: optional array of filters to be used to generate the base path
 	wiki: optional wiki for evaluating the pathFilters
 	fileInfo: an existing fileInfo object to check against
+	fileInfo.overwrite: if true, turns off filename clash numbers (defaults to false)
 */
 exports.generateTiddlerFilepath = function(title,options) {
 	var directory = options.directory || "",
 		extension = options.extension || "",
 		originalpath = (options.fileInfo && options.fileInfo.originalpath) ? options.fileInfo.originalpath : "",
+		overwrite = options.fileInfo && options.fileInfo.overwrite || false,
 		filepath;
 	// Check if any of the pathFilters applies
 	if(options.pathFilters && options.wiki) {
@ -381,19 +383,20 @@ exports.generateTiddlerFilepath = function(title,options) {
 			filepath += char.charCodeAt(0).toString();
 		});
 	}
-	// Add a uniquifier if the file already exists
-	var fullPath, oldPath = (options.fileInfo) ? options.fileInfo.filepath : undefined,
+	// Add a uniquifier if the file already exists (default)
+	var fullPath = path.resolve(directory, filepath + extension);
+	if (!overwrite) {
+		var oldPath = (options.fileInfo) ? options.fileInfo.filepath : undefined,
 		count = 0;
-	do {
-		fullPath = path.resolve(directory,filepath + (count ? "_" + count : "") + extension);
-		if(oldPath && oldPath == fullPath) {
-			break;
-		}
-		count++;
-	} while(fs.existsSync(fullPath));
+		do {
+			fullPath = path.resolve(directory,filepath + (count ? "_" + count : "") + extension);
+			if(oldPath && oldPath == fullPath) break;
+			count++;
+		} while(fs.existsSync(fullPath));
+	}
 	// If the last write failed with an error, or if path does not start with:
 	//	the resolved options.directory, the resolved wikiPath directory, the wikiTiddlersPath directory, 
-	//	or the 'originalpath' directory, then $tw.utils.encodeURIComponentExtended() and resolve to tiddler directory.
+	//	or the 'originalpath' directory, then $tw.utils.encodeURIComponentExtended() and resolve to options.directory.
 	var writePath = $tw.hooks.invokeHook("th-make-tiddler-path",fullPath,fullPath),
 		encode = (options.fileInfo || {writeError: false}).writeError == true;
 	if(!encode) {
--- a/core/modules/utils/repository.js
+++ b/core/modules/utils/repository.js
@ -0,0 +1,52 @@
+/*\
+title: $:/core/modules/utils/repository.js
+type: application/javascript
+module-type: utils
+
+Utilities for working with the TiddlyWiki repository file structure
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+/*
+Get an object containing all the plugins as a hashmap by title of the JSON representation of the plugin
+Options:
+
+ignoreEnvironmentVariables: defaults to false
+*/
+exports.getAllPlugins = function(options) {
+	options = options || {};
+	var fs = require("fs"),
+		path = require("path"),
+		tiddlers = {};
+	// Collect up the library plugins
+	var collectPlugins = function(folder) {
+			var pluginFolders = $tw.utils.getSubdirectories(folder) || [];
+			for(var p=0; p<pluginFolders.length; p++) {
+				if(!$tw.boot.excludeRegExp.test(pluginFolders[p])) {
+					var pluginFields = $tw.loadPluginFolder(path.resolve(folder,"./" + pluginFolders[p]));
+					if(pluginFields && pluginFields.title) {
+						tiddlers[pluginFields.title] = pluginFields;
+					}
+				}
+			}
+		},
+		collectPublisherPlugins = function(folder) {
+			var publisherFolders = $tw.utils.getSubdirectories(folder) || [];
+			for(var t=0; t<publisherFolders.length; t++) {
+				if(!$tw.boot.excludeRegExp.test(publisherFolders[t])) {
+					collectPlugins(path.resolve(folder,"./" + publisherFolders[t]));
+				}
+			}
+		};
+	$tw.utils.each($tw.getLibraryItemSearchPaths($tw.config.pluginsPath,options.ignoreEnvironmentVariables ? undefined : $tw.config.pluginsEnvVar),collectPublisherPlugins);
+	$tw.utils.each($tw.getLibraryItemSearchPaths($tw.config.themesPath,options.ignoreEnvironmentVariables ? undefined : $tw.config.themesEnvVar),collectPublisherPlugins);
+	$tw.utils.each($tw.getLibraryItemSearchPaths($tw.config.languagesPath,options.ignoreEnvironmentVariables ? undefined : $tw.config.languagesEnvVar),collectPlugins);
+	return tiddlers;
+};
+
+})();
--- a/core/modules/utils/transliterate.js
+++ b/core/modules/utils/transliterate.js
@ -924,7 +924,7 @@ exports.transliterate = function(str) {
 };

 exports.transliterateToSafeASCII = function(str) {
-	return str.replace(/[^\x00-\x7F]/g,function(ch) {
+	return str.replace(/[^\x20-\x7F]/g,function(ch) {
 		return exports.transliterationPairs[ch] || ""
 	});
 };
--- a/core/modules/utils/utils.js
+++ b/core/modules/utils/utils.js
@ -819,6 +819,15 @@ exports.hashString = function(str) {
 	},0);
 };

+/*
+Cryptographic hash function as used by sha256 filter operator
+options.length .. number of characters returned defaults to 64
+*/
+exports.sha256 = function(str, options) {
+	options = options || {}
+	return $tw.sjcl.codec.hex.fromBits($tw.sjcl.hash.sha256.hash(str)).substr(0,options.length || 64);
+}
+
 /*
 Base64 utility functions that work in either browser or Node.js
 */
@ -922,7 +931,7 @@ IE does not have sign function
 */
 exports.sign = Math.sign || function(x) {
 	x = +x; // convert to a number
-	if (x === 0 || isNaN(x)) {
+	if(x === 0 || isNaN(x)) {
 		return x;
 	}
 	return x > 0 ? 1 : -1;
@ -935,7 +944,7 @@ exports.strEndsWith = function(str,ending,position) {
 	if(str.endsWith) {
 		return str.endsWith(ending,position);
 	} else {
-		if (typeof position !== 'number' || !isFinite(position) || Math.floor(position) !== position || position > str.length) {
+		if(typeof position !== 'number' || !isFinite(position) || Math.floor(position) !== position || position > str.length) {
 			position = str.length;
 		}
 		position -= ending.length;
--- a/core/modules/widgets/action-deletefield.js
+++ b/core/modules/widgets/action-deletefield.js
@ -37,6 +37,7 @@ Compute the internal state of the widget
 DeleteFieldWidget.prototype.execute = function() {
 	this.actionTiddler = this.getAttribute("$tiddler",this.getVariable("currentTiddler"));
 	this.actionField = this.getAttribute("$field",null);
+	this.actionTimestamp = this.getAttribute("$timestamp","yes") === "yes";
 };

 /*
@ -69,11 +70,15 @@ DeleteFieldWidget.prototype.invokeAction = function(triggeringWidget,event) {
 		$tw.utils.each(this.attributes,function(attribute,name) {
 			if(name.charAt(0) !== "$" && name !== "title") {
 				removeFields[name] = undefined;
-				hasChanged = true;
+				if(name in tiddler.fields) {
+					hasChanged = true;
+				}
 			}
 		});
 		if(hasChanged) {
-			this.wiki.addTiddler(new $tw.Tiddler(this.wiki.getCreationFields(),tiddler,removeFields,this.wiki.getModificationFields()));
+			var creationFields = this.actionTimestamp ? this.wiki.getCreationFields() : {};
+			var modificationFields = this.actionTimestamp ? this.wiki.getModificationFields() : {};
+			this.wiki.addTiddler(new $tw.Tiddler(creationFields,tiddler,removeFields,modificationFields));
 		}
 	}
 	return true; // Action was invoked
--- a/core/modules/widgets/action-log.js
+++ b/core/modules/widgets/action-log.js
@ -66,7 +66,12 @@ LogWidget.prototype.log = function() {
 	});

 	for(var v in this.variables) {
-		allVars[v] = this.getVariable(v,{defaultValue:""});
+		var variable = this.parentWidget && this.parentWidget.variables[v];
+		if(variable && variable.isFunctionDefinition) {
+			allVars[v] = variable.value;
+		} else {
+			allVars[v]  = this.getVariable(v,{defaultValue:""});
+		}
 	}
 	if(this.filter) {
 		filteredVars = this.wiki.compileFilter(this.filter).call(this.wiki,this.wiki.makeTiddlerIterator(allVars));
--- a/core/modules/widgets/button.js
+++ b/core/modules/widgets/button.js
@ -262,7 +262,7 @@ Selectively refreshes the widget if needed. Returns true if the widget or any of
 */
 ButtonWidget.prototype.refresh = function(changedTiddlers) {
 	var changedAttributes = this.computeAttributes();
-	if(changedAttributes.actions || changedAttributes.to || changedAttributes.message || changedAttributes.param || changedAttributes.set || changedAttributes.setTo || changedAttributes.popup || changedAttributes.hover || changedAttributes.selectedClass || changedAttributes.style || changedAttributes.dragFilter || changedAttributes.dragTiddler || (this.set && changedTiddlers[this.set]) || (this.popup && changedTiddlers[this.popup]) || (this.popupTitle && changedTiddlers[this.popupTitle]) || changedAttributes.popupAbsCoords || changedAttributes.setTitle || changedAttributes.setField || changedAttributes.setIndex || changedAttributes.popupTitle || changedAttributes.disabled || changedAttributes["default"]) {
+	if(changedAttributes.tooltip || changedAttributes.actions || changedAttributes.to || changedAttributes.message || changedAttributes.param || changedAttributes.set || changedAttributes.setTo || changedAttributes.popup || changedAttributes.hover || changedAttributes.selectedClass || changedAttributes.style || changedAttributes.dragFilter || changedAttributes.dragTiddler || (this.set && changedTiddlers[this.set]) || (this.popup && changedTiddlers[this.popup]) || (this.popupTitle && changedTiddlers[this.popupTitle]) || changedAttributes.popupAbsCoords || changedAttributes.setTitle || changedAttributes.setField || changedAttributes.setIndex || changedAttributes.popupTitle || changedAttributes.disabled || changedAttributes["default"]) {
 		this.refreshSelf();
 		return true;
 	} else {
--- a/core/modules/widgets/data.js
+++ b/core/modules/widgets/data.js
@ -0,0 +1,194 @@
+/*\
+title: $:/core/modules/widgets/data.js
+type: application/javascript
+module-type: widget
+
+Widget to dynamically represent one or more tiddlers
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+var Widget = require("$:/core/modules/widgets/widget.js").widget;
+
+var DataWidget = function(parseTreeNode,options) {
+	this.dataWidgetTag = parseTreeNode.type;
+	this.initialise(parseTreeNode,options);
+};
+
+/*
+Inherit from the base widget class
+*/
+DataWidget.prototype = new Widget();
+
+/*
+Render this widget into the DOM
+*/
+DataWidget.prototype.render = function(parent,nextSibling) {
+	this.parentDomNode = parent;
+	this.computeAttributes();
+	this.execute();
+	this.dataPayload = this.computeDataTiddlerValues(); // Array of $tw.Tiddler objects
+	this.domNode = this.document.createTextNode(this.readDataTiddlerValuesAsJson());
+	parent.insertBefore(this.domNode,nextSibling);
+	this.domNodes.push(this.domNode);
+};
+
+/*
+Compute the internal state of the widget
+*/
+DataWidget.prototype.execute = function() {
+	// Nothing to do here
+};
+
+/*
+Read the tiddler value(s) from a data widget as an array of tiddler field objects (not $tw.Tiddler objects)
+*/
+DataWidget.prototype.readDataTiddlerValues = function() {
+	var results = [];
+	$tw.utils.each(this.dataPayload,function(tiddler,index) {
+		results.push(tiddler.getFieldStrings());
+	});
+	return results;
+};
+
+/*
+Read the tiddler value(s) from a data widget as an array of tiddler field objects (not $tw.Tiddler objects)
+*/
+DataWidget.prototype.readDataTiddlerValuesAsJson = function() {
+	return JSON.stringify(this.readDataTiddlerValues(),null,4);
+};
+
+/*
+Compute list of tiddlers from a data widget
+*/
+DataWidget.prototype.computeDataTiddlerValues = function() {
+	var self = this;
+	// Read any attributes not prefixed with $
+	var item = Object.create(null);
+	$tw.utils.each(this.attributes,function(value,name) {
+		if(name.charAt(0) !== "$") {
+			item[name] = value;	
+		}
+	});
+	// Deal with $tiddler, $filter or $compound-tiddler attributes
+	var tiddlers = [],
+		compoundTiddlers,
+		title;
+	if(this.hasAttribute("$tiddler")) {
+		title = this.getAttribute("$tiddler");
+		if(title) {
+			var tiddler = this.wiki.getTiddler(title);
+			if(tiddler) {
+				tiddlers.push(tiddler);
+			}
+		}
+	}
+	if(this.hasAttribute("$filter")) {
+		var filter = this.getAttribute("$filter");
+		if(filter) {
+			var titles = this.wiki.filterTiddlers(filter);
+			$tw.utils.each(titles,function(title) {
+				var tiddler = self.wiki.getTiddler(title);
+				if(tiddler) {
+					tiddlers.push(tiddler);
+				}
+			});
+		}
+	}
+	if(this.hasAttribute("$compound-tiddler")) {
+		title = this.getAttribute("$compound-tiddler");
+		if(title) {
+			tiddlers.push.apply(tiddlers,this.extractCompoundTiddler(title));
+		}
+	}
+	if(this.hasAttribute("$compound-filter")) {
+		filter = this.getAttribute("$compound-filter");
+		if(filter) {
+			compoundTiddlers = this.wiki.filterTiddlers(filter);
+			$tw.utils.each(compoundTiddlers, function(title){
+				tiddlers.push.apply(tiddlers,self.extractCompoundTiddler(title));
+			});
+		}
+	}
+	// Return the literal item if none of the special attributes were used
+	if(!this.hasAttribute("$tiddler") && !this.hasAttribute("$filter") && !this.hasAttribute("$compound-tiddler") && !this.hasAttribute("$compound-filter")) {
+		if(Object.keys(item).length > 0 && !!item.title) {
+			return [new $tw.Tiddler(item)];
+		} else {
+			return [];
+		}
+	} else {
+		// Apply the item fields to each of the tiddlers
+		if(Object.keys(item).length > 0) {
+			$tw.utils.each(tiddlers,function(tiddler,index) {
+				tiddlers[index] = new $tw.Tiddler(tiddler,item);
+			});
+		}
+		return tiddlers;
+	}
+};
+
+/*
+Helper to extract tiddlers from text/vnd.tiddlywiki-multiple tiddlers
+*/
+DataWidget.prototype.extractCompoundTiddler = function(title) {
+	var tiddler = this.wiki.getTiddler(title);
+	if(tiddler && tiddler.fields.type === "text/vnd.tiddlywiki-multiple") {
+		var text = tiddler.fields.text || "",
+			rawTiddlers = text.split(/\r?\n\+\r?\n/),
+			tiddlers = [];
+		$tw.utils.each(rawTiddlers,function(rawTiddler) {
+			var fields = Object.create(null),
+				split = rawTiddler.split(/\r?\n\r?\n/mg);
+			if(split.length >= 1) {
+				fields = $tw.utils.parseFields(split[0],fields);
+			}
+			if(split.length >= 2) {
+				fields.text = split.slice(1).join("\n\n");
+			}
+			tiddlers.push(new $tw.Tiddler(fields));
+		});
+		return tiddlers;
+	} else {
+		return [];
+	}
+};
+
+/*
+Selectively refreshes the widget if needed. Returns true if the widget or any of its children needed re-rendering
+*/
+DataWidget.prototype.refresh = function(changedTiddlers) {
+	var changedAttributes = this.computeAttributes();
+	var newPayload = this.computeDataTiddlerValues();
+	if(hasPayloadChanged(this.dataPayload,newPayload)) {
+		this.dataPayload = newPayload;
+		this.domNode.textContent = this.readDataTiddlerValuesAsJson();
+		return true;
+	} else {
+		return false;
+	}
+};
+
+/*
+Compare two arrays of tiddlers and return true if they are different
+*/
+function hasPayloadChanged(a,b) {
+	if(a.length === b.length) {
+		for(var t=0; t<a.length; t++) {
+			if(!(a[t].isEqual(b[t]))) {
+				return true;
+			}
+		}
+		return false;
+	} else {
+		return true;
+	}
+}
+
+exports.data = DataWidget;
+
+})();
--- a/core/modules/widgets/draggable.js
+++ b/core/modules/widgets/draggable.js
@ -119,7 +119,7 @@ DraggableWidget.prototype.refresh = function(changedTiddlers) {
 		return true;
 	} else {
 		if(changedAttributes["class"]) {
-			this.assignDomNodeClasses();
+			this.updateDomNodeClasses();
 		}
 		this.assignAttributes(this.domNodes[0],{
 			changedAttributes: changedAttributes,
@ -132,4 +132,4 @@ DraggableWidget.prototype.refresh = function(changedTiddlers) {

 exports.draggable = DraggableWidget;

-})();
+})();
--- a/core/modules/widgets/importvariables.js
+++ b/core/modules/widgets/importvariables.js
@ -49,7 +49,7 @@ ImportVariablesWidget.prototype.execute = function(tiddlerList) {
 	this.tiddlerList = tiddlerList || this.wiki.filterTiddlers(this.filter,this);
 	// Accumulate the <$set> widgets from each tiddler
 	$tw.utils.each(this.tiddlerList,function(title) {
-		var parser = widgetPointer.wiki.parseTiddler(title,{parseAsInline:true, configTrimWhiteSpace:true});
+		var parser = widgetPointer.wiki.parseTiddler(title,{parseAsInline:true, configTrimWhiteSpace:false});
 		if(parser) {
 			var parseTreeNode = parser.tree[0];
 			while(parseTreeNode && ["setvariable","set","parameters"].indexOf(parseTreeNode.type) !== -1) {
--- a/core/modules/widgets/parameters.js
+++ b/core/modules/widgets/parameters.js
@ -74,6 +74,18 @@ ParametersWidget.prototype.execute = function() {
 				self.setVariable(variableName,getValue(name));
 			}
 		});
+	} else {
+		// There is no parent transclude. i.e. direct rendering.
+		// We use default values only.
+		$tw.utils.each($tw.utils.getOrderedAttributesFromParseTreeNode(self.parseTreeNode),function(attr,index) {
+			var name = attr.name;
+			// If the attribute name starts with $$ then reduce to a single dollar
+			if(name.substr(0,2) === "$$") {
+				name = name.substr(1);
+			}
+			var value = self.getAttribute(attr.name,"");
+			self.setVariable(name,value);
+		});
 	}
 	// Construct the child widgets
 	this.makeChildWidgets();
--- a/core/modules/widgets/testcase.js
+++ b/core/modules/widgets/testcase.js
@ -0,0 +1,165 @@
+/*\
+title: $:/core/modules/widgets/testcase.js
+type: application/javascript
+module-type: widget
+
+Widget to display a test case
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+var Widget = require("$:/core/modules/widgets/widget.js").widget;
+
+var TestCaseWidget = function(parseTreeNode,options) {
+	this.initialise(parseTreeNode,options);
+};
+
+/*
+Inherit from the base widget class
+*/
+TestCaseWidget.prototype = new Widget();
+
+/*
+Render this widget into the DOM
+*/
+TestCaseWidget.prototype.render = function(parent,nextSibling) {
+	var self = this;
+	this.parentDomNode = parent;
+	this.computeAttributes();
+	this.execute();
+	// Create container DOM node
+	var domNode = this.document.createElement("div");
+	this.domNodes.push(domNode);
+	parent.insertBefore(domNode,nextSibling);
+	// Render the children into a hidden DOM node
+	var parser = {
+		tree: [{
+			type: "widget",
+			attributes: {},
+			orderedAttributes: [],
+			children: this.parseTreeNode.children || []
+		}]
+	};
+	this.contentRoot = this.wiki.makeWidget(parser,{
+		document: $tw.fakeDocument,
+		parentWidget: this
+	});
+	this.contentContainer = $tw.fakeDocument.createElement("div");
+	this.contentRoot.render(this.contentContainer,null);
+	// Create a wiki
+	this.testcaseWiki = new $tw.Wiki();
+	// Always load the core plugin
+	var loadTiddler = function(title) {
+		var tiddler = self.wiki.getTiddler(title);
+		if(tiddler) {
+			self.testcaseWiki.addTiddler(tiddler);
+		}
+	}
+	loadTiddler("$:/core");
+	loadTiddler("$:/plugins/tiddlywiki/codemirror");
+	// Load tiddlers from child data widgets
+	var tiddlers = [];
+	this.findChildrenDataWidgets(this.contentRoot.children,"data",function(widget) {
+		Array.prototype.push.apply(tiddlers,widget.readDataTiddlerValues());
+	});
+	var jsonPayload = JSON.stringify(tiddlers);
+	this.testcaseWiki.addTiddlers(tiddlers);
+	// Unpack plugin tiddlers
+	this.testcaseWiki.readPluginInfo();
+	this.testcaseWiki.registerPluginTiddlers("plugin");
+	this.testcaseWiki.unpackPluginTiddlers();
+	this.testcaseWiki.addIndexersToWiki();
+	// Generate a `transclusion` variable that depends on the values of the payload tiddlers so that the template can easily make unique state tiddlers
+	this.setVariable("transclusion",$tw.utils.hashString(jsonPayload));
+	// Generate a `payloadTiddlers` variable that contains the payload in JSON format
+	this.setVariable("payloadTiddlers",jsonPayload);
+	// Only run the tests if the testcase output and expected results were specified, and those tiddlers actually exist in the wiki
+	var shouldRunTests = false;
+	if(this.testcaseTestOutput && this.testcaseWiki.tiddlerExists(this.testcaseTestOutput) && this.testcaseTestExpectedResult && this.testcaseWiki.tiddlerExists(this.testcaseTestExpectedResult)) {
+		shouldRunTests = true;
+	}
+	// Render the test rendering if required
+	if(shouldRunTests) {
+		var testcaseOutputContainer = $tw.fakeDocument.createElement("div");
+		var testcaseOutputWidget = this.testcaseWiki.makeTranscludeWidget(this.testcaseTestOutput,{
+			document: $tw.fakeDocument,
+			parseAsInline: false,
+			parentWidget: this,
+			variables: {
+				currentTiddler: this.testcaseTestOutput
+			}
+		});
+		testcaseOutputWidget.render(testcaseOutputContainer);
+	}
+	// Clear changes queue
+	this.testcaseWiki.clearTiddlerEventQueue();
+	// Run the actions if provided
+	if(this.testcaseWiki.tiddlerExists(this.testcaseTestActions)) {
+		testcaseOutputWidget.invokeActionString(this.testcaseWiki.getTiddlerText(this.testcaseTestActions));
+		testcaseOutputWidget.refresh(this.testcaseWiki.changedTiddlers,testcaseOutputContainer);
+	}
+	// Set up the test result variables
+	var testResult = "",
+		outputHTML = "",
+		expectedHTML = "";
+	if(shouldRunTests) {
+		outputHTML = testcaseOutputContainer.children[0].innerHTML;
+		expectedHTML = this.testcaseWiki.getTiddlerText(this.testcaseTestExpectedResult);
+		if(outputHTML === expectedHTML) {
+			testResult = "pass";
+		} else {
+			testResult = "fail";
+		}
+		this.setVariable("outputHTML",outputHTML);
+		this.setVariable("expectedHTML",expectedHTML);
+		this.setVariable("testResult",testResult);
+		this.setVariable("currentTiddler",this.testcaseTestOutput);
+	}
+	// Don't display anything if testHideIfPass is "yes" and the tests have passed
+	if(this.testcaseHideIfPass === "yes" && testResult !== "fail") {
+		return;
+	}
+	// Render the page root template of the subwiki
+	var rootWidget = this.testcaseWiki.makeTranscludeWidget(this.testcaseTemplate,{
+		document: this.document,
+		parseAsInline: false,
+		parentWidget: this
+	});
+	rootWidget.render(domNode);
+	// Trap changes in the wiki and refresh the rendering
+	this.testcaseWiki.addEventListener("change",function(changes) {
+		rootWidget.refresh(changes,domNode);
+	});
+};
+
+/*
+Compute the internal state of the widget
+*/
+TestCaseWidget.prototype.execute = function() {
+	this.testcaseTemplate = this.getAttribute("template","$:/core/ui/testcases/DefaultTemplate");
+	this.testcaseTestOutput = this.getAttribute("testOutput");
+	this.testcaseTestActions = this.getAttribute("testActions");
+	this.testcaseTestExpectedResult = this.getAttribute("testExpectedResult");
+	this.testcaseHideIfPass = this.getAttribute("testHideIfPass");
+};
+
+/*
+Selectively refreshes the widget if needed. Returns true if the widget or any of its children needed re-rendering
+*/
+TestCaseWidget.prototype.refresh = function(changedTiddlers) {
+	var changedAttributes = this.computeAttributes();
+	if($tw.utils.count(changedAttributes) > 0) {
+		this.refreshSelf();
+		return true;
+	} else {
+		return this.contentRoot.refresh(changedTiddlers);
+	}
+};
+
+exports["testcase"] = TestCaseWidget;
+
+})();
--- a/core/modules/widgets/transclude.js
+++ b/core/modules/widgets/transclude.js
@ -30,7 +30,30 @@ TranscludeWidget.prototype.render = function(parent,nextSibling) {
 	this.parentDomNode = parent;
 	this.computeAttributes();
 	this.execute();
-	this.renderChildren(parent,nextSibling);
+	try {
+		this.renderChildren(parent,nextSibling);
+	} catch(error) {
+		if(error instanceof $tw.utils.TranscludeRecursionError) {
+			// We were infinite looping.
+			// We need to try and abort as much of the loop as we can, so we will keep "throwing" upward until we find a transclusion that has a different signature.
+			// Hopefully that will land us just outside where the loop began. That's where we want to issue an error.
+			// Rendering widgets beneath this point may result in a freezing browser if they explode exponentially.
+			var transcludeSignature = this.getVariable("transclusion");
+			if(this.getAncestorCount() > $tw.utils.TranscludeRecursionError.MAX_WIDGET_TREE_DEPTH - 50) {
+				// For the first fifty transcludes we climb up, we simply collect signatures.
+				// We're assuming that those first 50 will likely include all transcludes involved in the loop.
+				error.signatures[transcludeSignature] = true;
+			} else if(!error.signatures[transcludeSignature]) {
+				// Now that we're past the first 50, let's look for the first signature that wasn't in the loop. That'll be where we print the error and resume rendering.
+				this.children = [this.makeChildWidget({type: "error", attributes: {
+					"$message": {type: "string", value: $tw.language.getString("Error/RecursiveTransclusion")}
+				}})];
+				this.renderChildren(parent,nextSibling);
+				return;
+			}
+		}
+		throw error;
+	}
 };

 /*
--- a/core/modules/widgets/widget.js
+++ b/core/modules/widgets/widget.js
@ -12,9 +12,6 @@ Widget base class
 /*global $tw: false */
 "use strict";

-/* Maximum permitted depth of the widget tree for recursion detection */
-var MAX_WIDGET_TREE_DEPTH = 1000;
-
 /*
 Create a widget object for a parse tree node
 	parseTreeNode: reference to the parse tree node to be rendered
@ -166,6 +163,8 @@ Widget.prototype.getVariableInfo = function(name,options) {
 			});
 			resultList = this.wiki.filterTiddlers(value,this.makeFakeWidgetWithVariables(variables),options.source);
 			value = resultList[0] || "";
+		} else {
+			params = variable.params;
 		}
 		return {
 			text: value,
@ -317,7 +316,8 @@ Widget.prototype.getStateQualifier = function(name) {
 Make a fake widget with specified variables, suitable for variable lookup in filters
 */
 Widget.prototype.makeFakeWidgetWithVariables = function(variables) {
-	var self = this;
+	var self = this,
+		variables = variables || {};
 	return {
 		getVariable: function(name,opts) {
 			if($tw.utils.hop(variables,name)) {
@ -335,7 +335,7 @@ Widget.prototype.makeFakeWidgetWithVariables = function(variables) {
 				};
 			} else {
 				opts = opts || {};
-				opts.variables = variables;
+				opts.variables = $tw.utils.extend(variables,opts.variables);
 				return self.getVariableInfo(name,opts);
 			};
 		},
@ -494,10 +494,8 @@ Widget.prototype.makeChildWidgets = function(parseTreeNodes,options) {
 	this.children = [];
 	var self = this;
 	// Check for too much recursion
-	if(this.getAncestorCount() > MAX_WIDGET_TREE_DEPTH) {
-		this.children.push(this.makeChildWidget({type: "error", attributes: {
-			"$message": {type: "string", value: $tw.language.getString("Error/RecursiveTransclusion")}
-		}}));
+	if(this.getAncestorCount() > $tw.utils.TranscludeRecursionError.MAX_WIDGET_TREE_DEPTH) {
+		throw new $tw.utils.TranscludeRecursionError();
 	} else {
 		// Create set variable widgets for each variable
 		$tw.utils.each(options.variables,function(value,name) {
@ -813,6 +811,21 @@ Widget.prototype.allowActionPropagation = function() {
 	return true;
 };

+/*
+Find child <$data> widgets recursively. The tag name allows aliased versions of the widget to be found too
+*/
+Widget.prototype.findChildrenDataWidgets = function(children,tag,callback) {
+	var self = this;
+	$tw.utils.each(children,function(child) {
+		if(child.dataWidgetTag === tag) {
+			callback(child);
+		}
+		if(child.children) {
+			self.findChildrenDataWidgets(child.children,tag,callback);
+		}
+	});
+};
+
 /*
 Evaluate a variable with parameters. This is a static convenience method that attempts to evaluate a variable as a function, returning an array of strings
 */
--- a/core/modules/wiki.js
+++ b/core/modules/wiki.js
@ -592,28 +592,45 @@ exports.getTiddlerBacklinks = function(targetTitle) {


 /*
-Return an array of tiddler titles that are directly transcluded within the given parse tree
+Return an array of tiddler titles that are directly transcluded within the given parse tree. `title` is the tiddler being parsed, we will ignore its self-referential transclusions, only return
 */
-exports.extractTranscludes = function(parseTreeRoot) {
+exports.extractTranscludes = function(parseTreeRoot, title) {
 	// Count up the transcludes
 	var transcludes = [],
 		checkParseTree = function(parseTree, parentNode) {
 			for(var t=0; t<parseTree.length; t++) {
 				var parseTreeNode = parseTree[t];
-				if(parseTreeNode.type === "transclude" && parseTreeNode.attributes.$tiddler && parseTreeNode.attributes.$tiddler.type === "string") {
-					var value;
-					// if it is Transclusion with Templates like `{{Index||$:/core/ui/TagTemplate}}`, the `$tiddler` will point to the template. We need to find the actual target tiddler from parent node
-					if(parentNode && parentNode.type === "tiddler" && parentNode.attributes.tiddler && parentNode.attributes.tiddler.type === "string") {
-						value = parentNode.attributes.tiddler.value;
-					} else {
-						value = parseTreeNode.attributes.$tiddler.value;
+				if(parseTreeNode.type === "transclude") {
+					if(parseTreeNode.attributes.$tiddler) {
+						if(parseTreeNode.attributes.$tiddler.type === "string") {
+							var value;
+							// if it is Transclusion with Templates like `{{Index||$:/core/ui/TagTemplate}}`, the `$tiddler` will point to the template. We need to find the actual target tiddler from parent node
+							if(parentNode && parentNode.type === "tiddler" && parentNode.attributes.tiddler && parentNode.attributes.tiddler.type === "string") {
+								// Empty value (like `{{!!field}}`) means self-referential transclusion.
+								value = parentNode.attributes.tiddler.value || title;
+							} else {
+								value = parseTreeNode.attributes.$tiddler.value;
+							}
+						}
+					} else if(parseTreeNode.attributes.tiddler) {
+						if (parseTreeNode.attributes.tiddler.type === "string") {
+							// Old transclude widget usage
+							value = parseTreeNode.attributes.tiddler.value;
+						}
+					} else if(parseTreeNode.attributes.$field && parseTreeNode.attributes.$field.type === "string") {
+						// Empty value (like `<$transclude $field='created'/>`) means self-referential transclusion. 
+						value = title;
+					} else if(parseTreeNode.attributes.field && parseTreeNode.attributes.field.type === "string") {
+						// Old usage with Empty value (like `<$transclude field='created'/>`)
+						value = title;
 					}
-					if(transcludes.indexOf(value) === -1) {
-						transcludes.push(value);
+					// Deduplicate the result.
+					if(value && transcludes.indexOf(value) === -1) {
+						$tw.utils.pushTop(transcludes,value);
 					}
 				}
 				if(parseTreeNode.children) {
-					checkParseTree(parseTreeNode.children, parseTreeNode);
+					checkParseTree(parseTreeNode.children,parseTreeNode);
 				}
 			}
 		};
@ -632,7 +649,8 @@ exports.getTiddlerTranscludes = function(title) {
 		// Parse the tiddler
 		var parser = self.parseTiddler(title);
 		if(parser) {
-			return self.extractTranscludes(parser.tree);
+			// this will ignore self-referential transclusions from `title`
+			return self.extractTranscludes(parser.tree,title);
 		}
 		return [];
 	});
--- a/core/palettes/Blanca.tid
+++ b/core/palettes/Blanca.tid
@ -33,6 +33,7 @@ external-link-background: inherit
 external-link-foreground-hover: inherit
 external-link-foreground-visited: #0000aa
 external-link-foreground: #0000ee
+footnote-target-background: #ecf2ff
 foreground: #333333
 highlight-background: #ffff00
 highlight-foreground: #000000
--- a/core/palettes/Blue.tid
+++ b/core/palettes/Blue.tid
@ -33,6 +33,7 @@ external-link-background: inherit
 external-link-foreground-hover: inherit
 external-link-foreground-visited: #0000aa
 external-link-foreground: #0000ee
+footnote-target-background: #ecf2ff
 foreground: #333353
 highlight-background: #ffff00
 highlight-foreground: #000000
--- a/core/palettes/BrightMute.tid
+++ b/core/palettes/BrightMute.tid
@ -33,6 +33,7 @@ external-link-background: inherit
 external-link-foreground-hover: inherit
 external-link-foreground-visited: #0000aa
 external-link-foreground: #0000ee
+footnote-target-background: #ecf2ff
 foreground: #333333
 highlight-background: #ffff00
 highlight-foreground: #000000
--- a/core/palettes/ContrastDark.tid
+++ b/core/palettes/ContrastDark.tid
@ -1,7 +1,7 @@
-title: $:/palettes/ContrastLight
-name: Contrast (Light)
-color-scheme: light
-description: High contrast and unambiguous (light version)
+title: $:/palettes/ContrastDark
+name: Contrast (Dark)
+color-scheme: dark
+description: High contrast and unambiguous (dark version)
 tags: $:/tags/Palette
 type: application/x-tiddler-dictionary

@ -9,7 +9,7 @@ alert-background: #f00
 alert-border: <<colour background>>
 alert-highlight: <<colour foreground>>
 alert-muted-foreground: #800
-background: #fff
+background: #000
 blockquote-bar: <<colour muted-foreground>>
 button-background: <<colour background>>
 button-foreground: <<colour foreground>>
@ -33,7 +33,8 @@ external-link-background: inherit
 external-link-foreground-hover: inherit
 external-link-foreground-visited: #00a
 external-link-foreground: #00e
-foreground: #000
+footnote-target-background: #4c4c4c
+foreground: #fff
 highlight-background: #ffff00
 highlight-foreground: #000000
 message-background: <<colour foreground>>
@ -82,8 +83,8 @@ tab-foreground: <<colour background>>
 table-border: #dddddd
 table-footer-background: #a8a8a8
 table-header-background: #f0f0f0
-tag-background: #000
-tag-foreground: #fff
+tag-background: #fff
+tag-foreground: #000
 tiddler-background: <<colour background>>
 tiddler-border: <<colour foreground>>
 tiddler-controls-foreground-hover: #ddd
--- a/core/palettes/ContrastLight.tid
+++ b/core/palettes/ContrastLight.tid
@ -1,7 +1,7 @@
-title: $:/palettes/ContrastDark
-name: Contrast (Dark)
-color-scheme: dark
-description: High contrast and unambiguous (dark version)
+title: $:/palettes/ContrastLight
+name: Contrast (Light)
+color-scheme: light
+description: High contrast and unambiguous (light version)
 tags: $:/tags/Palette
 type: application/x-tiddler-dictionary

@ -9,7 +9,7 @@ alert-background: #f00
 alert-border: <<colour background>>
 alert-highlight: <<colour foreground>>
 alert-muted-foreground: #800
-background: #000
+background: #fff
 blockquote-bar: <<colour muted-foreground>>
 button-background: <<colour background>>
 button-foreground: <<colour foreground>>
@ -33,7 +33,8 @@ external-link-background: inherit
 external-link-foreground-hover: inherit
 external-link-foreground-visited: #00a
 external-link-foreground: #00e
-foreground: #fff
+footnote-target-background: #e5e5e5
+foreground: #000
 highlight-background: #ffff00
 highlight-foreground: #000000
 message-background: <<colour foreground>>
@ -82,8 +83,8 @@ tab-foreground: <<colour background>>
 table-border: #dddddd
 table-footer-background: #a8a8a8
 table-header-background: #f0f0f0
-tag-background: #fff
-tag-foreground: #000
+tag-background: #000
+tag-foreground: #fff
 tiddler-background: <<colour background>>
 tiddler-border: <<colour foreground>>
 tiddler-controls-foreground-hover: #ddd
--- a/core/palettes/CupertinoDark.tid
+++ b/core/palettes/CupertinoDark.tid
@ -31,6 +31,7 @@ external-link-background: transparent
 external-link-foreground-hover: 
 external-link-foreground-visited: #BF5AF2
 external-link-foreground: #32D74B
+footnote-target-background: #747474
 foreground: #FFFFFF
 highlight-background: #ffff78
 highlight-foreground: #000000
--- a/core/palettes/DarkPhotos.tid
+++ b/core/palettes/DarkPhotos.tid
@ -35,6 +35,7 @@ external-link-background: inherit
 external-link-foreground-hover: inherit
 external-link-foreground-visited: #0000aa
 external-link-foreground: #0000ee
+footnote-target-background: #ecf2ff
 foreground: #333333
 highlight-background: #ffff00
 highlight-foreground: #000000
--- a/core/palettes/DesertSand.tid
+++ b/core/palettes/DesertSand.tid
@ -39,6 +39,7 @@ external-link-background: inherit
 external-link-foreground-hover: inherit
 external-link-foreground-visited: #313163
 external-link-foreground: #555592
+footnote-target-background: #fff7d9
 foreground: #2D2A23
 highlight-background: #ffff00
 highlight-foreground: #000000
--- a/Show More
+++ b/Show More
				`@ -0,0 +1 @@`
				<p>This community exists because TiddlyWiki is more useful when people share and work together.</p><p>This community is a beautiful but fragile thing: a collection of diverse people from all over the planet, united in their interest in the project, and their commitment to helping one another achieve and learn more.</p><p>We try to make the community as broad and welcoming as possible by remembering some basic principles of culture and behaviour.</p><p>These principles guide technical and non-technical decisions, and help contributors and leaders support our project and community.</p><ul><li>We are optimistic and hopeful</li><li>We aim to foster a learning environment that is collaborative and safe for everyone</li><li>We recognise that the motivation for sharing and helping is usually for appreciation, and not financial gain, and so we take care to acknowledge and <strong>thank the people who enrich the community by sharing what they have created</strong></li><li>While we are united in our interest in TiddlyWiki, we differ in every other conceivable way. We choose to focus on what unites us, and <strong>avoid unnecessarily mixing contentious topics like religion and politics</strong></li><li>We treat each other with respect, and start with the assumption that <strong>others are acting in good faith</strong></li><li>We avoid discriminatory language</li><li>We try to use our strength as a community to help others</li><li>We avoid responding when angry or upset because we try to de-escalate conflict</li><li>We make sure we critique ideas, not people</li><li>When we disagree with others we do so graciously, and treat others with dignity and respoect</li><li>We do not tolerate intolerance towards others</li><li>We seek first to understand others, and then to be understood</li><li>We have fun</li></ul><p>Our discussions are in English. It is not the first language of many people in the community, nor do we all share the same cultural background and reference points. So we take care to use language that is clear and unambigous, and avoid cultural references or jokes that will not be widely understood.</p><p>It is not acceptable to make jokes or other comments that discriminate by race, gender, sexuality, or other protected characteristic.</p><p>As an inclusive community, we are committed to making sure that TiddlyWiki is an accessible tool that understands the needs of people with disabilities.</p>