Trial implementing pretty links via a macro

An experiment for #3883

.travis.yml

@@ -0,0 +1,34 @@
+language: node_js
+  - "node"
+
+stages:
+  - name: test
+  - name: build-prerelease
+    if: branch = "master"
+  - name: build-tiddlywiki-com
+    if: branch = "tiddlywiki-com"
+
+jobs:  
+  include:
+    - stage: test
+      script: ./bin/test.sh
+    - stage: build-prerelease
+      script:
+        - ./bin/travis-pre-build.sh
+        - export TW5_BUILD_TIDDLYWIKI='./tiddlywiki.js'
+        - export TW5_BUILD_VERSION=$(./bin/get-plugin-library-version-number)
+        - export TW5_BUILD_DETAILS="Prerelease built from branch '$TRAVIS_BRANCH' at commit $(git rev-parse HEAD) of $(git remote get-url origin) at $(date +'%F %T %Z')"
+        - export TW5_BUILD_MAIN_EDITION='./editions/prerelease'
+        - export TW5_BUILD_OUTPUT='./output/prerelease'
+        - ./bin/build-site.sh
+        - ./bin/travis-push.sh
+    - stage: build-tiddlywiki-com
+      script:
+        - ./bin/travis-pre-build.sh
+        - export TW5_BUILD_TIDDLYWIKI='./node_modules/tiddlywiki/tiddlywiki.js'
+        - export TW5_BUILD_VERSION=$(./bin/get-plugin-library-version-number)
+        - export TW5_BUILD_DETAILS="Built from branch '$TRAVIS_BRANCH' at commit $(git rev-parse HEAD) of $(git remote get-url origin) at $(date +'%F %T %Z')"
+        - export TW5_BUILD_MAIN_EDITION='./editions/tw5.com'
+        - export TW5_BUILD_OUTPUT='./output'
+        - ./bin/build-site.sh
+        - ./bin/travis-push.sh

bin/2bld.cmd

@@ -1,15 +0,0 @@
-@echo off
-
-rem build TiddlyWiki 2.x
-
-rem cook the TiddlyWiki 2.x.x index file
-
-node .\tiddlywiki.js ^
-	editions\tw2 ^
-	--verbose ^
-	--output tmp\tw2 ^
-	--load editions\tw2\source\tiddlywiki.com\index.html.recipe ^
-	--rendertiddler $:/core/templates/tiddlywiki2.template.html index.html text/plain ^
-	|| exit 1
-
-fc tmp\tw2\index.html editions\tw2\target\prebuilt.html

bin/2bld.sh

@@ -1,15 +0,0 @@
-#!/bin/bash
-
-# build TiddlyWiki 2.x
-
-# cook the TiddlyWiki 2.x.x index file
-
-node ./tiddlywiki.js \
-	editions/tw2 \
-	--verbose \
-	--output tmp/tw2 \
-	--load editions/tw2/source/tiddlywiki.com/index.html.recipe \
-	--rendertiddler $:/core/templates/tiddlywiki2.template.html index.html text/plain \
-	|| exit 1
-
-diff -q tmp/tw2/index.html editions/tw2/target/prebuilt.html

bin/build-site.sh

@@ -0,0 +1,443 @@
+#!/bin/bash
+
+# Build all tiddlywiki.com assets.
+
+# Default to the current version number for building the plugin library
+
+if [  -z "$TW5_BUILD_VERSION" ]; then
+    TW5_BUILD_VERSION=v5.1.19
+fi
+
+echo "Using TW5_BUILD_VERSION as [$TW5_BUILD_VERSION]"
+
+# Default to using tw5.com as the main edition for /index.html
+
+if [  -z "$TW5_BUILD_MAIN_EDITION" ]; then
+    TW5_BUILD_MAIN_EDITION=./editions/tw5.com
+fi
+
+echo "Using TW5_BUILD_MAIN_EDITION as [$TW5_BUILD_MAIN_EDITION]"
+
+# Default to the version of TiddlyWiki installed in this repo
+
+if [  -z "$TW5_BUILD_TIDDLYWIKI" ]; then
+    TW5_BUILD_TIDDLYWIKI=./tiddlywiki.js
+fi
+
+echo "Using TW5_BUILD_TIDDLYWIKI as [$TW5_BUILD_TIDDLYWIKI]"
+
+# Set up the build details
+
+if [  -z "$TW5_BUILD_DETAILS" ]; then
+    TW5_BUILD_DETAILS="$(git symbolic-ref --short HEAD)-$(git rev-parse HEAD) from $(git remote get-url origin)"
+fi
+
+echo "Using TW5_BUILD_DETAILS as [$TW5_BUILD_DETAILS]"
+
+# Set up the build output directory
+
+if [  -z "$TW5_BUILD_OUTPUT" ]; then
+    TW5_BUILD_OUTPUT=./output
+fi
+
+mkdir -p $TW5_BUILD_OUTPUT
+
+if [  ! -d "$TW5_BUILD_OUTPUT" ]; then
+    echo 'A valid TW5_BUILD_OUTPUT environment variable must be set'
+    exit 1
+fi
+
+echo "Using TW5_BUILD_OUTPUT as [$TW5_BUILD_OUTPUT]"
+
+echo "Build details: $TW5_BUILD_DETAILS"
+
+# Make the CNAME file that GitHub Pages requires
+
+echo "tiddlywiki.com" > $TW5_BUILD_OUTPUT/CNAME
+
+# Delete any existing static content
+
+mkdir -p $TW5_BUILD_OUTPUT/static
+mkdir -p $TW5_BUILD_OUTPUT/dev
+mkdir -p $TW5_BUILD_OUTPUT/dev/static
+rm $TW5_BUILD_OUTPUT/static/*
+rm $TW5_BUILD_OUTPUT/dev/static/*
+
+# Redirects
+
+echo "<a href='./plugins/tiddlywiki/tw2parser/index.html'>Moved to http://tiddlywiki.com/plugins/tiddlywiki/tw2parser/index.html</a>" > $TW5_BUILD_OUTPUT/classicparserdemo.html
+echo "<a href='./plugins/tiddlywiki/codemirror/index.html'>Moved to http://tiddlywiki.com/plugins/tiddlywiki/codemirror/index.html</a>" > $TW5_BUILD_OUTPUT/codemirrordemo.html
+echo "<a href='./plugins/tiddlywiki/d3/index.html'>Moved to http://tiddlywiki.com/plugins/tiddlywiki/d3/index.html</a>" > $TW5_BUILD_OUTPUT/d3demo.html
+echo "<a href='./plugins/tiddlywiki/highlight/index.html'>Moved to http://tiddlywiki.com/plugins/tiddlywiki/highlight/index.html</a>" > $TW5_BUILD_OUTPUT/highlightdemo.html
+echo "<a href='./plugins/tiddlywiki/markdown/index.html'>Moved to http://tiddlywiki.com/plugins/tiddlywiki/markdown/index.html</a>" > $TW5_BUILD_OUTPUT/markdowndemo.html
+echo "<a href='./plugins/tiddlywiki/tahoelafs/index.html'>Moved to http://tiddlywiki.com/plugins/tiddlywiki/tahoelafs/index.html</a>" > $TW5_BUILD_OUTPUT/tahoelafs.html
+
+# Put the build details into a .tid file so that it can be included in each build (deleted at the end of this script)
+
+echo -e -n "title: $:/build\n\n$TW5_BUILD_DETAILS\n" > $TW5_BUILD_OUTPUT/build.tid
+
+######################################################
+#
+# Core distribution
+#
+######################################################
+
+# /index.html			Main site
+# /favicon.ico			Favicon for main site
+# /static.html			Static rendering of default tiddlers
+# /alltiddlers.html		Static rendering of all tiddlers
+# /static/*				Static single tiddlers
+# /static/static.css	Static stylesheet
+# /static/favicon.ico	Favicon for static pages
+node $TW5_BUILD_TIDDLYWIKI \
+	$TW5_BUILD_MAIN_EDITION \
+	--verbose \
+	--version \
+	--load $TW5_BUILD_OUTPUT/build.tid \
+	--output $TW5_BUILD_OUTPUT \
+	--build favicon static index \
+	|| exit 1
+
+# /empty.html			Empty
+# /empty.hta			For Internet Explorer
+node $TW5_BUILD_TIDDLYWIKI \
+	./editions/empty \
+	--verbose \
+	--output $TW5_BUILD_OUTPUT \
+	--build empty \
+	|| exit 1
+
+
+# /test.html			Test edition
+node $TW5_BUILD_TIDDLYWIKI \
+	./editions/test \
+	--verbose \
+	--output $TW5_BUILD_OUTPUT \
+	--rendertiddler $:/core/save/all test.html text/plain \
+	|| exit 1
+
+# /dev/index.html			Developer docs
+# /dev/favicon.ico			Favicon for dev site
+# /dev/static.html			Static rendering of default tiddlers
+# /dev/alltiddlers.html		Static rendering of all tiddlers
+# /dev/static/*				Static single tiddlers
+# /dev/static/static.css	Static stylesheet
+node $TW5_BUILD_TIDDLYWIKI \
+	./editions/dev \
+	--verbose \
+	--load $TW5_BUILD_OUTPUT/build.tid \
+	--output $TW5_BUILD_OUTPUT/dev \
+	--build index favicon static \
+	|| exit 1
+
+# /upgrade.html				Custom edition for performing upgrades
+node $TW5_BUILD_TIDDLYWIKI \
+	./editions/upgrade \
+	--verbose \
+	--load $TW5_BUILD_OUTPUT/build.tid \
+	--output $TW5_BUILD_OUTPUT \
+	--build upgrade \
+	|| exit 1
+
+# /encrypted.html			Copy of the main file encrypted with the password "password"
+node $TW5_BUILD_TIDDLYWIKI \
+	$TW5_BUILD_MAIN_EDITION \
+	--verbose \
+	--load $TW5_BUILD_OUTPUT/build.tid \
+	--output $TW5_BUILD_OUTPUT \
+	--build encrypted \
+	|| exit 1
+
+
+######################################################
+#
+# Editions
+#
+######################################################
+
+# /editions/xlsx-utils/index.html	xlsx-utils edition
+node $TW5_BUILD_TIDDLYWIKI \
+	./editions/xlsx-utils \
+	--verbose \
+	--load $TW5_BUILD_OUTPUT/build.tid \
+	--output $TW5_BUILD_OUTPUT/editions/xlsx-utils/ \
+	--build index \
+	|| exit 1
+
+# /editions/resumebuilder/index.html	Resume builder edition
+node $TW5_BUILD_TIDDLYWIKI \
+	./editions/resumebuilder \
+	--verbose \
+	--load $TW5_BUILD_OUTPUT/build.tid \
+	--output $TW5_BUILD_OUTPUT/editions/resumebuilder/ \
+	--build index \
+	|| exit 1
+
+# /editions/text-slicer/index.html	Text slicer edition
+node $TW5_BUILD_TIDDLYWIKI \
+	./editions/text-slicer \
+	--verbose \
+	--load $TW5_BUILD_OUTPUT/build.tid \
+	--output $TW5_BUILD_OUTPUT/editions/text-slicer/ \
+	--build index \
+	|| exit 1
+
+# /editions/translators/index.html	Translators edition
+node $TW5_BUILD_TIDDLYWIKI \
+	./editions/translators \
+	--verbose \
+	--load $TW5_BUILD_OUTPUT/build.tid \
+	--output $TW5_BUILD_OUTPUT/editions/translators/ \
+	--build index \
+	|| exit 1
+
+# /editions/introduction/index.html	Introduction edition
+node $TW5_BUILD_TIDDLYWIKI \
+	./editions/introduction \
+	--verbose \
+	--load $TW5_BUILD_OUTPUT/build.tid \
+	--output $TW5_BUILD_OUTPUT/editions/introduction/ \
+	--build index \
+	|| exit 1
+
+# /editions/full/index.html	Full edition
+node $TW5_BUILD_TIDDLYWIKI \
+	./editions/full \
+	--verbose \
+	--load $TW5_BUILD_OUTPUT/build.tid \
+	--output $TW5_BUILD_OUTPUT/editions/full/ \
+	--build index \
+	|| exit 1
+
+# /editions/tw5.com-docs/index.html	tiddlywiki.com docs edition
+node $TW5_BUILD_TIDDLYWIKI \
+	./editions/tw5.com-docs \
+	--verbose \
+	--load $TW5_BUILD_OUTPUT/build.tid \
+	--output $TW5_BUILD_OUTPUT/editions/tw5.com-docs/ \
+	--build index \
+	|| exit 1
+
+######################################################
+#
+# Plugin demos
+#
+######################################################
+
+# /plugins/tiddlywiki/innerwiki/index.html	Demo wiki with Innerwiki plugin
+
+node $TW5_BUILD_TIDDLYWIKI \
+	./editions/innerwikidemo \
+	--verbose \
+	--load $TW5_BUILD_OUTPUT/build.tid \
+	--output $TW5_BUILD_OUTPUT \
+	--rendertiddler $:/core/save/all plugins/tiddlywiki/innerwiki/index.html text/plain \
+	|| exit 1
+
+# /plugins/tiddlywiki/dynaview/index.html	Demo wiki with DynaView plugin
+# /plugins/tiddlywiki/dynaview/empty.html	Empty wiki with DynaView plugin
+
+node $TW5_BUILD_TIDDLYWIKI \
+	./editions/dynaviewdemo \
+	--verbose \
+	--load $TW5_BUILD_OUTPUT/build.tid \
+	--output $TW5_BUILD_OUTPUT \
+	--rendertiddler $:/core/save/all plugins/tiddlywiki/dynaview/index.html text/plain \
+	--rendertiddler $:/core/save/empty plugins/tiddlywiki/dynaview/empty.html text/plain \
+	|| exit 1
+
+# /plugins/tiddlywiki/katex/index.html	Demo wiki with KaTeX plugin
+# /plugins/tiddlywiki/katex/empty.html	Empty wiki with KaTeX plugin
+
+# TODO: Build the static file with the release of 5.1.3
+#	--rendertiddler $:/core/templates/static.template.html plugins/tiddlywiki/katex/static.html text/plain \
+
+node $TW5_BUILD_TIDDLYWIKI \
+	./editions/katexdemo \
+	--verbose \
+	--load $TW5_BUILD_OUTPUT/build.tid \
+	--output $TW5_BUILD_OUTPUT \
+	--rendertiddler $:/core/save/all plugins/tiddlywiki/katex/index.html text/plain \
+	--rendertiddler $:/core/save/empty plugins/tiddlywiki/katex/empty.html text/plain \
+	|| exit 1
+
+# /plugins/tiddlywiki/tahoelafs/index.html	Demo wiki with Tahoe-LAFS plugin
+# /plugins/tiddlywiki/tahoelafs/empty.html	Empty wiki with Tahoe-LAFS plugin
+node $TW5_BUILD_TIDDLYWIKI \
+	./editions/tahoelafs \
+	--verbose \
+	--load $TW5_BUILD_OUTPUT/build.tid \
+	--output $TW5_BUILD_OUTPUT \
+	--rendertiddler $:/core/save/all plugins/tiddlywiki/tahoelafs/index.html text/plain \
+	--rendertiddler $:/core/save/empty plugins/tiddlywiki/tahoelafs/empty.html text/plain \
+	|| exit 1
+
+# /plugins/tiddlywiki/d3/index.html	Demo wiki with D3 plugin
+# /plugins/tiddlywiki/d3/empty.html	Empty wiki with D3 plugin
+node $TW5_BUILD_TIDDLYWIKI \
+	./editions/d3demo \
+	--verbose \
+	--load $TW5_BUILD_OUTPUT/build.tid \
+	--output $TW5_BUILD_OUTPUT \
+	--rendertiddler $:/core/save/all plugins/tiddlywiki/d3/index.html text/plain \
+	--rendertiddler $:/core/save/empty plugins/tiddlywiki/d3/empty.html text/plain \
+	|| exit 1
+
+# /plugins/tiddlywiki/codemirror/index.html	Demo wiki with codemirror plugin
+# /plugins/tiddlywiki/codemirror/empty.html	Empty wiki with codemirror plugin
+node $TW5_BUILD_TIDDLYWIKI \
+	./editions/codemirrordemo \
+	--verbose \
+	--load $TW5_BUILD_OUTPUT/build.tid \
+	--output $TW5_BUILD_OUTPUT \
+	--rendertiddler $:/core/save/all plugins/tiddlywiki/codemirror/index.html text/plain \
+	--rendertiddler $:/core/save/empty plugins/tiddlywiki/codemirror/empty.html text/plain \
+	|| exit 1
+
+# /plugins/tiddlywiki/markdown/index.html		Demo wiki with Markdown plugin
+# /plugins/tiddlywiki/markdown/empty.html		Empty wiki with Markdown plugin
+node $TW5_BUILD_TIDDLYWIKI \
+	./editions/markdowndemo \
+	--verbose \
+	--load $TW5_BUILD_OUTPUT/build.tid \
+	--output $TW5_BUILD_OUTPUT \
+	--rendertiddler $:/core/save/all plugins/tiddlywiki/markdown/index.html text/plain \
+	--rendertiddler $:/core/save/empty plugins/tiddlywiki/markdown/empty.html text/plain \
+	|| exit 1
+
+# /plugins/tiddlywiki/tw2parser/index.html		Demo wiki with tw2parser plugin
+# /plugins/tiddlywiki/tw2parser/empty.html		Empty wiki with tw2parser plugin
+node $TW5_BUILD_TIDDLYWIKI \
+	./editions/classicparserdemo \
+	--verbose \
+	--load $TW5_BUILD_OUTPUT/build.tid \
+	--output $TW5_BUILD_OUTPUT \
+	--rendertiddler $:/core/save/all plugins/tiddlywiki/tw2parser/index.html text/plain \
+	--rendertiddler $:/core/save/empty plugins/tiddlywiki/tw2parser/empty.html text/plain \
+	|| exit 1
+
+# /plugins/tiddlywiki/highlight/index.html		Demo wiki with highlight plugin
+# /plugins/tiddlywiki/highlight/empty.html		Empty wiki with highlight plugin
+node $TW5_BUILD_TIDDLYWIKI \
+	./editions/highlightdemo \
+	--verbose \
+	--load $TW5_BUILD_OUTPUT/build.tid \
+	--output $TW5_BUILD_OUTPUT \
+	--rendertiddler $:/core/save/all plugins/tiddlywiki/highlight/index.html text/plain \
+	--rendertiddler $:/core/save/empty plugins/tiddlywiki/highlight/empty.html text/plain \
+	|| exit 1
+
+######################################################
+#
+# Language editions
+#
+######################################################
+
+# Delete any existing static content
+
+rm $TW5_BUILD_OUTPUT/languages/de-AT/static/*
+rm $TW5_BUILD_OUTPUT/languages/de-DE/static/*
+rm $TW5_BUILD_OUTPUT/languages/es-ES/static/*
+rm $TW5_BUILD_OUTPUT/languages/fr-FR/static/*
+rm $TW5_BUILD_OUTPUT/languages/ja-JP/static/*
+rm $TW5_BUILD_OUTPUT/languages/ko-KR/static/*
+rm $TW5_BUILD_OUTPUT/languages/zh-Hans/static/*
+rm $TW5_BUILD_OUTPUT/languages/zh-Hant/static/*
+
+# /languages/de-AT/index.html		Demo wiki with de-AT language
+# /languages/de-AT/empty.html		Empty wiki with de-AT language
+node $TW5_BUILD_TIDDLYWIKI \
+	./editions/de-AT \
+	--verbose \
+	--load $TW5_BUILD_OUTPUT/build.tid \
+	--output $TW5_BUILD_OUTPUT/languages/de-AT \
+	--build favicon empty static index \
+	|| exit 1
+
+# /languages/de-DE/index.html		Demo wiki with de-DE language
+# /languages/de-DE/empty.html		Empty wiki with de-DE language
+node $TW5_BUILD_TIDDLYWIKI \
+	./editions/de-DE \
+	--verbose \
+	--load $TW5_BUILD_OUTPUT/build.tid \
+	--output $TW5_BUILD_OUTPUT/languages/de-DE \
+	--build favicon empty static index \
+	|| exit 1
+
+# /languages/es-ES/index.html		Demo wiki with es-ES language
+# /languages/es-ES/empty.html		Empty wiki with es-ES language
+node $TW5_BUILD_TIDDLYWIKI \
+	./editions/es-ES \
+	--verbose \
+	--load $TW5_BUILD_OUTPUT/build.tid \
+	--output $TW5_BUILD_OUTPUT/languages/es-ES \
+	--build favicon empty static index \
+	|| exit 1
+
+# /languages/fr-FR/index.html		Demo wiki with fr-FR language
+# /languages/fr-FR/empty.html		Empty wiki with fr-FR language
+node $TW5_BUILD_TIDDLYWIKI \
+	./editions/fr-FR \
+	--verbose \
+	--load $TW5_BUILD_OUTPUT/build.tid \
+	--output $TW5_BUILD_OUTPUT/languages/fr-FR \
+	--build favicon empty static index \
+	|| exit 1
+
+# /languages/ja-JP/index.html		Demo wiki with ja-JP language
+# /languages/ja-JP/empty.html		Empty wiki with ja-JP language
+node $TW5_BUILD_TIDDLYWIKI \
+	./editions/ja-JP \
+	--verbose \
+	--load $TW5_BUILD_OUTPUT/build.tid \
+	--output $TW5_BUILD_OUTPUT/languages/ja-JP \
+	--build empty index \
+	|| exit 1
+
+# /languages/ko-KR/index.html		Demo wiki with ko-KR language
+# /languages/ko-KR/empty.html		Empty wiki with ko-KR language
+node $TW5_BUILD_TIDDLYWIKI \
+	./editions/ko-KR \
+	--verbose \
+	--load $TW5_BUILD_OUTPUT/build.tid \
+	--output $TW5_BUILD_OUTPUT/languages/ko-KR \
+	--build favicon empty static index \
+	|| exit 1
+
+# /languages/zh-Hans/index.html		Demo wiki with zh-Hans language
+# /languages/zh-Hans/empty.html		Empty wiki with zh-Hans language
+node $TW5_BUILD_TIDDLYWIKI \
+	./editions/zh-Hans \
+	--verbose \
+	--load $TW5_BUILD_OUTPUT/build.tid \
+	--output $TW5_BUILD_OUTPUT/languages/zh-Hans \
+	--build empty index \
+	|| exit 1
+
+# /languages/zh-Hant/index.html		Demo wiki with zh-Hant language
+# /languages/zh-Hant/empty.html		Empty wiki with zh-Hant language
+node $TW5_BUILD_TIDDLYWIKI \
+	./editions/zh-Hant \
+	--verbose \
+	--load $TW5_BUILD_OUTPUT/build.tid \
+	--output $TW5_BUILD_OUTPUT/languages/zh-Hant \
+	--build empty index \
+	|| exit 1
+
+######################################################
+#
+# Plugin library
+#
+######################################################
+
+node $TW5_BUILD_TIDDLYWIKI \
+	./editions/pluginlibrary \
+	--verbose \
+	--load $TW5_BUILD_OUTPUT/build.tid \
+	--output $TW5_BUILD_OUTPUT/library/$TW5_BUILD_VERSION \
+	--build \
+	|| exit 1
+
+# Delete the temporary build tiddler
+
+rm $TW5_BUILD_OUTPUT/build.tid || exit 1

bin/get-plugin-library-version-number

@@ -0,0 +1,19 @@
+#!/usr/bin/env node
+
+// Extract raw version number from package.json (without the optional "-prerelease" suffix)
+
+if(!process.env["TW5_BUILD_TIDDLYWIKI"]) {
+	throw "TW5_BUILD_TIDDLYWIKI environment variable not set";
+}
+
+var fs = require("fs"),
+	path = require("path");
+
+var filename = path.resolve(path.dirname(process.env["TW5_BUILD_TIDDLYWIKI"]),"./package.json"),
+	json = JSON.parse(fs.readFileSync(filename,"utf8"));
+
+if(!json.version) {
+	throw "Missing version number in package.json";
+}
+
+process.stdout.write("v" + json.version.split("-")[0]);

bin/test.sh

@@ -7,6 +7,7 @@
 node ./tiddlywiki.js \
 	./editions/test \
 	--verbose \
+	--version \
 	--rendertiddler $:/core/save/all test.html text/plain \
 	|| exit 1
 

bin/travis-pre-build.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+# Install latest current release from npm
+# (we need to force because otherwise npm will refuse to install a module of the same name)
+
+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

bin/travis-push.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+# Push output back to GitHub
+
+
+cd output || exit 1
+
+git config --global user.email "travis@travis-ci.org" || exit 1
+
+git config --global user.name "Travis CI" || exit 1
+
+git add -A . || exit 1
+
+git commit --message "Travis build: $TRAVIS_BUILD_NUMBER of $TRAVIS_BRANCH ($(date +'%F %T %Z'))" || exit 1
+
+git remote add deploy "https://$GH_TOKEN@github.com/Jermolene/jermolene.github.io.git" &>/dev/null || exit 1
+
+git push deploy master &>/dev/null || exit 1
+
+cd .. || exit 1

boot/boot.css.tid

@@ -9,37 +9,50 @@ Basic styles used before we boot up the parsing engine
 Error message and password prompt
 */
 
-.tc-password-wrapper, .tc-error-form {
+.tc-error-form {
+	font-family: sans-serif;
+	color: #fff;
+	z-index: 20000;
+	position: fixed;
+	background-color: rgb(255, 75, 75);
+	border: 8px solid rgb(255, 0, 0);
+	border-radius: 8px;
+	width: 50%;
+	margin-left: 25%;
+	margin-top: 4em;
+	padding: 0 2em 1em 2em;
+}
+
+.tc-error-form h1 {
+	text-align: center;
+}
+
+.tc-error-prompt {
+	text-align: center;
+	color: #000;
+}
+
+.tc-error-message {
+	overflow: auto;
+	max-height: 40em;
+	padding-right: 1em;
+	margin: 1em 0;
+	white-space: pre-line;
+}
+
+.tc-password-wrapper {
     font-family: sans-serif;
 	z-index: 20000;
 	position: fixed;
 	text-align: center;
 	width: 200px;
 	top: 4em;
-    left: 50%;
-    margin-left: -144px; /* - width/2 - paddingHorz/2 - border */
+	left: 50%;
+	margin-left: -144px; /* - width/2 - paddingHorz/2 - border */
 	padding: 16px 16px 16px 16px;
 	border-radius: 8px;
 }
 
-.tc-error-form {
-	color: #fff;
-	text-shadow: 0 1px 0 rgba(0, 0, 0, 0.5);
-	background-color: rgb(255, 75, 75);
-	border: 8px solid rgb(255, 0, 0);
-	width: 480px;
-    margin-left: -244px; /* - width/2 - paddingHorz/2 - border */
-}
-
-.tc-error-form div {
-	padding-bottom: 1em;
-}
-
-.tc-error-prompt {
-	color: #000;
-	text-shadow: none;
-}
-
 .tc-password-wrapper {
 	color: #000;
 	text-shadow: 0 1px 0 rgba(255, 255, 255, 0.5);

boot/boot.js

@@ -51,6 +51,63 @@ $tw.utils.isArray = function(value) {
 	return Object.prototype.toString.call(value) == "[object Array]";
 };
 
+/*
+Check if an array is equal by value and by reference.
+*/
+$tw.utils.isArrayEqual = function(array1,array2) {
+	if(array1 === array2) {
+		return true;
+	}
+	array1 = array1 || [];
+	array2 = array2 || [];
+	if(array1.length !== array2.length) {
+		return false;
+	}
+	return array1.every(function(value,index) {
+		return value === array2[index];
+	});
+};
+
+/*
+Push entries onto an array, removing them first if they already exist in the array
+	array: array to modify (assumed to be free of duplicates)
+	value: a single value to push or an array of values to push
+*/
+$tw.utils.pushTop = function(array,value) {
+	var t,p;
+	if($tw.utils.isArray(value)) {
+		// Remove any array entries that are duplicated in the new values
+		if(value.length !== 0) {
+			if(array.length !== 0) {
+				if(value.length < array.length) {
+					for(t=0; t<value.length; t++) {
+						p = array.indexOf(value[t]);
+						if(p !== -1) {
+							array.splice(p,1);
+						}
+					}
+				} else {
+					for(t=array.length-1; t>=0; t--) {
+						p = value.indexOf(array[t]);
+						if(p !== -1) {
+							array.splice(t,1);
+						}
+					}
+				}
+			}
+			// Push the values on top of the main array
+			array.push.apply(array,value);
+		}
+	} else {
+		p = array.indexOf(value);
+		if(p !== -1) {
+			array.splice(p,1);
+		}
+		array.push(value);
+	}
+	return array;
+};
+
 /*
 Determine if a value is a date
 */
@@ -89,7 +146,9 @@ Helper for making DOM elements
 tag: tag name
 options: see below
 Options include:
+namespace: defaults to http://www.w3.org/1999/xhtml
 attributes: hashmap of attribute values
+style: hashmap of styles
 text: text to add as a child node
 children: array of further child nodes
 innerHTML: optional HTML for element
@@ -99,7 +158,7 @@ eventListeners: array of event listeners (this option won't work until $tw.utils
 */
 $tw.utils.domMaker = function(tag,options) {
 	var doc = options.document || document;
-	var element = doc.createElement(tag);
+	var element = doc.createElementNS(options.namespace || "http://www.w3.org/1999/xhtml",tag);
 	if(options["class"]) {
 		element.className = options["class"];
 	}
@@ -115,6 +174,9 @@ $tw.utils.domMaker = function(tag,options) {
 	$tw.utils.each(options.attributes,function(attribute,name) {
 		element.setAttribute(name,attribute);
 	});
+	$tw.utils.each(options.style,function(value,name) {
+		element.style[name] = value;
+	});
 	if(options.eventListeners) {
 		$tw.utils.addEventListeners(element,options.eventListeners);
 	}
@@ -135,8 +197,8 @@ $tw.utils.error = function(err) {
 		var dm = $tw.utils.domMaker,
 			heading = dm("h1",{text: errHeading}),
 			prompt = dm("div",{text: promptMsg, "class": "tc-error-prompt"}),
-			message = dm("div",{text: err}),
-			button = dm("button",{text: ( $tw.language == undefined ? "close" : $tw.language.getString("Buttons/Close/Caption") )}),
+			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"});
 		document.body.insertBefore(form,document.body.firstChild);
 		form.addEventListener("submit",function(event) {
@@ -268,7 +330,7 @@ $tw.utils.stringifyList = function(value) {
 };
 
 // Parse a string array from a bracketted list. For example "OneTiddler [[Another Tiddler]] LastOne"
-$tw.utils.parseStringArray = function(value) {
+$tw.utils.parseStringArray = function(value, allowDuplicate) {
 	if(typeof value === "string") {
 		var memberRegExp = /(?:^|[^\S\xA0])(?:\[\[(.*?)\]\])(?=[^\S\xA0]|$)|([\S\xA0]+)/mg,
 			results = [], names = {},
@@ -277,7 +339,7 @@ $tw.utils.parseStringArray = function(value) {
 			match = memberRegExp.exec(value);
 			if(match) {
 				var item = match[1] || match[2];
-				if(item !== undefined && !$tw.utils.hop(names,item)) {
+				if(item !== undefined && (!$tw.utils.hop(names,item) || allowDuplicate)) {
 					results.push(item);
 					names[item] = true;
 				}
@@ -862,6 +924,61 @@ $tw.Tiddler.prototype.hasField = function(field) {
 	return $tw.utils.hop(this.fields,field);
 };
 
+/*
+Compare two tiddlers for equality
+tiddler: the tiddler to compare
+excludeFields: array of field names to exclude from the comparison
+*/
+$tw.Tiddler.prototype.isEqual = function(tiddler,excludeFields) {
+	if(!(tiddler instanceof $tw.Tiddler)) {
+		return false;
+	}
+	excludeFields = excludeFields || [];
+	var self = this,
+		differences = []; // Fields that have differences
+	// Add to the differences array
+	function addDifference(fieldName) {
+		// Check for this field being excluded
+		if(excludeFields.indexOf(fieldName) === -1) {
+			// Save the field as a difference
+			$tw.utils.pushTop(differences,fieldName);
+		}
+	}
+	// Returns true if the two values of this field are equal
+	function isFieldValueEqual(fieldName) {
+		var valueA = self.fields[fieldName],
+			valueB = tiddler.fields[fieldName];
+		// Check for identical string values
+		if(typeof(valueA) === "string" && typeof(valueB) === "string" && valueA === valueB) {
+			return true;
+		}
+		// Check for identical array values
+		if($tw.utils.isArray(valueA) && $tw.utils.isArray(valueB) && $tw.utils.isArrayEqual(valueA,valueB)) {
+			return true;
+		}
+		// Check for identical date values
+		if($tw.utils.isDate(valueA) && $tw.utils.isDate(valueB) && valueA.getTime() === valueB.getTime()) {
+			return true;
+		}
+		// Otherwise the fields must be different
+		return false;
+	}
+	// Compare our fields
+	for(var fieldName in this.fields) {
+		if(!isFieldValueEqual(fieldName)) {
+			addDifference(fieldName);
+		}
+	}
+	// There's a difference for every field in the other tiddler that we don't have
+	for(fieldName in tiddler.fields) {
+		if(!(fieldName in this.fields)) {
+			addDifference(fieldName);
+		}
+	}
+	// Return whether there were any differences
+	return differences.length === 0;
+};
+
 /*
 Register and install the built in tiddler field modules
 */
@@ -902,9 +1019,23 @@ $tw.Wiki = function(options) {
 	options = options || {};
 	var self = this,
 		tiddlers = Object.create(null), // Hashmap of tiddlers
+		tiddlerTitles = null, // Array of tiddler titles
+		getTiddlerTitles = function() {
+			if(!tiddlerTitles) {
+				tiddlerTitles = Object.keys(tiddlers);
+			}
+			return tiddlerTitles;
+		},
 		pluginTiddlers = [], // Array of tiddlers containing registered plugins, ordered by priority
 		pluginInfo = Object.create(null), // Hashmap of parsed plugin content
-		shadowTiddlers = options.shadowTiddlers || Object.create(null); // Hashmap by title of {source:, tiddler:}
+		shadowTiddlers = options.shadowTiddlers || Object.create(null), // Hashmap by title of {source:, tiddler:}
+		shadowTiddlerTitles = null,
+		getShadowTiddlerTitles = function() {
+			if(!shadowTiddlerTitles) {
+				shadowTiddlerTitles = Object.keys(shadowTiddlers);
+			}
+			return shadowTiddlerTitles;
+		};
 
 	// Add a tiddler to the store
 	this.addTiddler = function(tiddler) {
@@ -918,6 +1049,9 @@ $tw.Wiki = function(options) {
 // Uncomment the following line for detailed logs of all tiddler writes
 // console.log("Adding",title,tiddler)
 				tiddlers[title] = tiddler;
+				if(tiddlerTitles && tiddlerTitles.indexOf(title) === -1) {
+					tiddlerTitles.push(title);
+				}
 				this.clearCache(title);
 				this.clearGlobalCache();
 				this.enqueueTiddlerEvent(title);
@@ -931,6 +1065,12 @@ $tw.Wiki = function(options) {
 // console.log("Deleting",title)
 		if($tw.utils.hop(tiddlers,title)) {
 			delete tiddlers[title];
+			if(tiddlerTitles) {
+				var index = tiddlerTitles.indexOf(title);
+				if(index !== -1) {
+					tiddlerTitles.splice(index,1);
+				}				
+			}
 			this.clearCache(title);
 			this.clearGlobalCache();
 			this.enqueueTiddlerEvent(title,true);
@@ -943,7 +1083,7 @@ $tw.Wiki = function(options) {
 			var t = tiddlers[title];
 			if(t instanceof $tw.Tiddler) {
 				return t;
-			} else if(title !== undefined && Object.prototype.hasOwnProperty.call(shadowTiddlers,title)) {
+			} else if(title !== undefined && shadowTiddlers[title]) {
 				return shadowTiddlers[title].tiddler;
 			}
 			return undefined;
@@ -952,12 +1092,12 @@ $tw.Wiki = function(options) {
 
 	// Get an array of all tiddler titles
 	this.allTitles = function() {
-		return Object.keys(tiddlers);
+		return getTiddlerTitles().slice(0);
 	};
 
 	// Iterate through all tiddler titles
 	this.each = function(callback) {
-		var titles = Object.keys(tiddlers),
+		var titles = getTiddlerTitles(),
 			index,titlesLength,title;
 		for(index = 0, titlesLength = titles.length; index < titlesLength; index++) {
 			title = titles[index];
@@ -967,12 +1107,12 @@ $tw.Wiki = function(options) {
 
 	// Get an array of all shadow tiddler titles
 	this.allShadowTitles = function() {
-		return Object.keys(shadowTiddlers);
+		return getShadowTiddlerTitles().slice(0);
 	};
 
 	// Iterate through all shadow tiddler titles
 	this.eachShadow = function(callback) {
-		var titles = Object.keys(shadowTiddlers),
+		var titles = getShadowTiddlerTitles(),
 			index,titlesLength,title;
 		for(index = 0, titlesLength = titles.length; index < titlesLength; index++) {
 			title = titles[index];
@@ -983,16 +1123,16 @@ $tw.Wiki = function(options) {
 
 	// Iterate through all tiddlers and then the shadows
 	this.eachTiddlerPlusShadows = function(callback) {
-		var titles = Object.keys(tiddlers),
-			index,titlesLength,title;
+		var index,titlesLength,title,
+			titles = getTiddlerTitles();
 		for(index = 0, titlesLength = titles.length; index < titlesLength; index++) {
 			title = titles[index];
 			callback(tiddlers[title],title);
 		}
-		titles = Object.keys(shadowTiddlers);
+		titles = getShadowTiddlerTitles();
 		for(index = 0, titlesLength = titles.length; index < titlesLength; index++) {
 			title = titles[index];
-			if(!Object.prototype.hasOwnProperty.call(tiddlers,title)) {
+			if(!tiddlers[title]) {
 				var shadowInfo = shadowTiddlers[title];
 				callback(shadowInfo.tiddler,title);
 			}
@@ -1001,21 +1141,21 @@ $tw.Wiki = function(options) {
 
 	// Iterate through all the shadows and then the tiddlers
 	this.eachShadowPlusTiddlers = function(callback) {
-		var titles = Object.keys(shadowTiddlers),
-			index,titlesLength,title;
+		var index,titlesLength,title,
+			titles = getShadowTiddlerTitles();
 		for(index = 0, titlesLength = titles.length; index < titlesLength; index++) {
 			title = titles[index];
-			if(Object.prototype.hasOwnProperty.call(tiddlers,title)) {
+			if(tiddlers[title]) {
 				callback(tiddlers[title],title);
 			} else {
 				var shadowInfo = shadowTiddlers[title];
 				callback(shadowInfo.tiddler,title);
 			}
 		}
-		titles = Object.keys(tiddlers);
+		titles = getTiddlerTitles();
 		for(index = 0, titlesLength = titles.length; index < titlesLength; index++) {
 			title = titles[index];
-			if(!Object.prototype.hasOwnProperty.call(shadowTiddlers,title)) {
+			if(!shadowTiddlers[title]) {
 				callback(tiddlers[title],title);
 			}
 		}
@@ -1130,6 +1270,7 @@ $tw.Wiki = function(options) {
 				});
 			}
 		});
+		shadowTiddlerTitles = null;
 		this.clearCache(null);
 		this.clearGlobalCache();
 	};
@@ -1257,8 +1398,7 @@ $tw.Wiki.prototype.deserializeTiddlers = function(type,text,srcFields,options) {
 /*
 Register the built in tiddler deserializer modules
 */
-$tw.modules.define("$:/boot/tiddlerdeserializer/js","tiddlerdeserializer",{
-	"application/javascript": function(text,fields) {
+var deserializeHeaderComment = function(text,fields) {
 		var headerCommentRegExp = new RegExp($tw.config.jsModuleHeaderRegExpString,"mg"),
 			match = headerCommentRegExp.exec(text);
 		fields.text = text;
@@ -1266,7 +1406,12 @@ $tw.modules.define("$:/boot/tiddlerdeserializer/js","tiddlerdeserializer",{
 			fields = $tw.utils.parseFields(match[1].split(/\r?\n\r?\n/mg)[0],fields);
 		}
 		return [fields];
-	}
+	};
+$tw.modules.define("$:/boot/tiddlerdeserializer/js","tiddlerdeserializer",{
+	"application/javascript": deserializeHeaderComment
+});
+$tw.modules.define("$:/boot/tiddlerdeserializer/css","tiddlerdeserializer",{
+	"text/css": deserializeHeaderComment
 });
 $tw.modules.define("$:/boot/tiddlerdeserializer/tid","tiddlerdeserializer",{
 	"application/x-tiddler": function(text,fields) {
@@ -1806,9 +1951,13 @@ $tw.loadWikiTiddlers = function(wikiPath,options) {
 	// Save the original tiddler file locations if requested
 	var config = wikiInfo.config || {};
 	if(config["retain-original-tiddler-path"]) {
-		var output = {};
+		var output = {}, relativePath;
 		for(var title in $tw.boot.files) {
-			output[title] = path.relative(resolvedWikiPath,$tw.boot.files[title].filepath);
+			relativePath = path.relative(resolvedWikiPath,$tw.boot.files[title].filepath);
+			output[title] =
+				path.sep === path.posix.sep ?
+				relativePath :
+				relativePath.split(path.sep).join(path.posix.sep);
 		}
 		$tw.wiki.addTiddler({title: "$:/config/OriginalTiddlerPaths", type: "application/json", text: JSON.stringify(output)});
 	}
@@ -1914,7 +2063,7 @@ $tw.boot.startup = function(options) {
 		// For writable tiddler files, a hashmap of title to {filepath:,type:,hasMetaFile:}
 		$tw.boot.files = Object.create(null);
 		// System paths and filenames
-		$tw.boot.bootPath = path.dirname(module.filename);
+		$tw.boot.bootPath = options.bootPath || path.dirname(module.filename);
 		$tw.boot.corePath = path.resolve($tw.boot.bootPath,"../core");
 		// If there's no arguments then default to `--help`
 		if($tw.boot.argv.length === 0) {
@@ -1953,9 +2102,13 @@ $tw.boot.startup = function(options) {
 	$tw.utils.registerFileType("image/jpeg","base64",[".jpg",".jpeg"],{flags:["image"]});
 	$tw.utils.registerFileType("image/png","base64",".png",{flags:["image"]});
 	$tw.utils.registerFileType("image/gif","base64",".gif",{flags:["image"]});
+	$tw.utils.registerFileType("image/webp","base64",".webp",{flags:["image"]});
+	$tw.utils.registerFileType("image/heic","base64",".heic",{flags:["image"]});
+	$tw.utils.registerFileType("image/heif","base64",".heif",{flags:["image"]});
 	$tw.utils.registerFileType("image/svg+xml","utf8",".svg",{flags:["image"]});
 	$tw.utils.registerFileType("image/x-icon","base64",".ico",{flags:["image"]});
 	$tw.utils.registerFileType("application/font-woff","base64",".woff");
+	$tw.utils.registerFileType("application/x-font-ttf","base64",".woff");
 	$tw.utils.registerFileType("audio/ogg","base64",".ogg");
 	$tw.utils.registerFileType("video/mp4","base64",".mp4");
 	$tw.utils.registerFileType("audio/mp3","base64",".mp3");
@@ -1966,8 +2119,10 @@ $tw.boot.startup = function(options) {
 	$tw.utils.registerFileType("application/vnd.openxmlformats-officedocument.wordprocessingml.document","base64",".docx");
 	$tw.utils.registerFileType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet","base64",".xlsx");
 	$tw.utils.registerFileType("application/vnd.openxmlformats-officedocument.presentationml.presentation","base64",".pptx");
+	$tw.utils.registerFileType("text/x-bibtex","utf8",".bib",{deserializerType:"application/x-bibtex"});
 	$tw.utils.registerFileType("application/x-bibtex","utf8",".bib");
 	$tw.utils.registerFileType("application/epub+zip","base64",".epub");
+	$tw.utils.registerFileType("application/octet-stream","base64",".octet-stream");
 	// Create the wiki store for the app
 	$tw.wiki = new $tw.Wiki();
 	// Install built in tiddler fields modules
@@ -1999,6 +2154,8 @@ $tw.boot.startup = function(options) {
 	if($tw.preloadTiddlers) {
 		$tw.wiki.addTiddlers($tw.preloadTiddlers);
 	}
+	// Give hooks a chance to modify the store
+	$tw.hooks.invokeHook("th-boot-tiddlers-loaded");
 	// Unpack plugin tiddlers
 	$tw.wiki.readPluginInfo();
 	$tw.wiki.registerPluginTiddlers("plugin",$tw.safeMode ? ["$:/core"] : undefined);

core/copyright.tid

@@ -4,7 +4,7 @@ type: text/plain
 TiddlyWiki created by Jeremy Ruston, (jeremy [at] jermolene [dot] com)
 
 Copyright (c) 2004-2007, Jeremy Ruston
-Copyright (c) 2007-2017, UnaMesa Association
+Copyright (c) 2007-2018, UnaMesa Association
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without

core/images/add-comment.tid

@@ -0,0 +1,4 @@
+title: $:/core/images/add-comment
+tags: $:/tags/Image
+
+<svg class="tc-image-add-comment tc-image-button" width="22pt" height="22pt" viewBox="0 0 128 128"><path d="M56 56H36a8 8 0 1 0 0 16h20v20a8 8 0 1 0 16 0V72h20a8 8 0 1 0 0-16H72V36a8 8 0 1 0-16 0v20zm-12.595 58.362c-6.683 7.659-20.297 12.903-36.006 12.903-2.196 0-4.35-.102-6.451-.3 9.652-3.836 17.356-12.24 21.01-22.874C8.516 94.28 0 79.734 0 63.5 0 33.953 28.206 10 63 10s63 23.953 63 53.5S97.794 117 63 117c-6.841 0-13.428-.926-19.595-2.638z" fill-rule="evenodd"/></svg>

core/images/gitter.tid

@@ -0,0 +1,9 @@
+title: $:/core/images/gitter
+tags: $:/tags/Image
+
+<svg class="tc-image-gitter tc-image-button" width="22pt" height="22pt" viewBox="0 0 18 25">
+  <rect x="15" y="5" width="2" height="10"></rect>
+  <rect x="10" y="5" width="2" height="20"></rect>
+  <rect x="5" y="5" width="2" height="20"></rect>
+  <rect width="2" height="15"></rect>
+</svg>

core/images/linkify.tid

@@ -0,0 +1,4 @@
+title: $:/core/images/linkify
+tags: $:/tags/Image
+
+<svg class="tc-linkify-button tc-image-button" viewBox="0 0 128 128" width="22pt" height="22pt"><path d="M17.031 31.919H9.048V96.85h7.983v6.92H0V25h17.031v6.919zm24.66 0h-7.983V96.85h7.983v6.92H24.66V25h17.03v6.919zM67.77 56.422l11.975-3.903 2.306 7.096-12.063 3.903 7.628 10.379-6.12 4.435-7.63-10.467-7.45 10.2-5.943-4.523L58.1 63.518 45.95 59.35l2.306-7.096 12.064 4.17V43.825h7.45v12.596zM86.31 96.85h7.982V31.92H86.31V25h17.031v78.77H86.31v-6.92zm24.659 0h7.983V31.92h-7.983V25H128v78.77h-17.031v-6.92z" fill-rule="evenodd"/></svg>

core/images/rotate-left.tid

@@ -0,0 +1,4 @@
+title: $:/core/images/rotate-left
+tags: $:/tags/Image
+
+<svg class="tc-image-rotate-left tc-image-button" width="22pt" height="22pt" viewBox="0 0 128 128"><g fill-rule="evenodd"><rect width="32" height="80" rx="8"/><rect x="48" y="96" width="80" height="32" rx="8"/><path d="M61.32 36.65c19.743 2.45 35.023 19.287 35.023 39.693a4 4 0 0 1-8 0c0-15.663-11.254-28.698-26.117-31.46l3.916 3.916a4 4 0 1 1-5.657 5.657L49.172 43.142a4 4 0 0 1 0-5.657l11.313-11.313a4 4 0 1 1 5.657 5.656l-4.821 4.822z"/></g></svg>

core/images/transcludify.tid

@@ -0,0 +1,4 @@
+title: $:/core/images/transcludify
+tags: $:/tags/Image
+
+<svg class="tc-transcludify-button tc-image-button" viewBox="0 0 128 128" width="22pt" height="22pt"><path d="M0 59.482c.591 0 1.36-.089 2.306-.266a10.417 10.417 0 0 0 2.75-.932 6.762 6.762 0 0 0 2.306-1.907c.651-.828.976-1.863.976-3.104V35.709c0-2.01.414-3.74 1.242-5.19.828-1.448 1.833-2.66 3.016-3.636s2.425-1.7 3.726-2.173c1.3-.473 2.424-.71 3.37-.71h8.073v7.451h-4.88c-1.241 0-2.232.207-2.97.621-.74.414-1.302.932-1.686 1.552a4.909 4.909 0 0 0-.71 1.996c-.089.71-.133 1.39-.133 2.04v16.677c0 1.715-.325 3.134-.976 4.258-.65 1.123-1.434 2.025-2.35 2.705-.917.68-1.863 1.168-2.839 1.464-.976.296-1.818.473-2.528.532v.178c.71.059 1.552.207 2.528.443.976.237 1.922.68 2.839 1.33.916.651 1.7 1.583 2.35 2.795.65 1.212.976 2.853.976 4.923v16.144c0 .65.044 1.33.133 2.04.089.71.325 1.375.71 1.996.384.621.946 1.139 1.685 1.553.74.414 1.73.62 2.972.62h4.879v7.452h-8.073c-.946 0-2.07-.237-3.37-.71-1.301-.473-2.543-1.197-3.726-2.173-1.183-.976-2.188-2.188-3.016-3.637-.828-1.449-1.242-3.179-1.242-5.19V74.119c0-1.42-.325-2.572-.976-3.46-.65-.886-1.419-1.581-2.306-2.084a8.868 8.868 0 0 0-2.75-1.02C1.36 67.377.591 67.288 0 67.288v-7.806zm24.66 0c.591 0 1.36-.089 2.306-.266a10.417 10.417 0 0 0 2.75-.932 6.762 6.762 0 0 0 2.306-1.907c.65-.828.976-1.863.976-3.104V35.709c0-2.01.414-3.74 1.242-5.19.828-1.448 1.833-2.66 3.016-3.636s2.425-1.7 3.726-2.173c1.3-.473 2.424-.71 3.37-.71h8.073v7.451h-4.88c-1.241 0-2.232.207-2.97.621-.74.414-1.302.932-1.686 1.552a4.909 4.909 0 0 0-.71 1.996c-.089.71-.133 1.39-.133 2.04v16.677c0 1.715-.325 3.134-.976 4.258-.65 1.123-1.434 2.025-2.35 2.705-.917.68-1.863 1.168-2.839 1.464-.976.296-1.818.473-2.528.532v.178c.71.059 1.552.207 2.528.443.976.237 1.922.68 2.839 1.33.916.651 1.7 1.583 2.35 2.795.65 1.212.976 2.853.976 4.923v16.144c0 .65.044 1.33.133 2.04.089.71.325 1.375.71 1.996.384.621.946 1.139 1.685 1.553.74.414 1.73.62 2.972.62h4.879v7.452h-8.073c-.946 0-2.07-.237-3.37-.71-1.301-.473-2.543-1.197-3.726-2.173-1.183-.976-2.188-2.188-3.016-3.637-.828-1.449-1.242-3.179-1.242-5.19V74.119c0-1.42-.325-2.572-.976-3.46-.65-.886-1.419-1.581-2.306-2.084a8.868 8.868 0 0 0-2.75-1.02c-.946-.177-1.715-.266-2.306-.266v-7.806zm43.965-3.538L80.6 52.041l2.306 7.097-12.063 3.903 7.628 10.378-6.12 4.435-7.63-10.467-7.45 10.201-5.943-4.524 7.628-10.023-12.152-4.17 2.306-7.096 12.064 4.17V43.347h7.451v12.596zm34.425 11.344c-.65 0-1.449.089-2.395.266-.946.177-1.863.488-2.75.931a6.356 6.356 0 0 0-2.262 1.908c-.62.828-.931 1.862-.931 3.104v17.564c0 2.01-.414 3.74-1.242 5.189-.828 1.449-1.833 2.661-3.016 3.637s-2.425 1.7-3.726 2.173c-1.3.473-2.424.71-3.37.71h-8.073v-7.451h4.88c1.241 0 2.232-.207 2.97-.621.74-.414 1.302-.932 1.686-1.553a4.9 4.9 0 0 0 .71-1.995c.089-.71.133-1.39.133-2.04V72.432c0-1.715.325-3.134.976-4.258.65-1.124 1.434-2.01 2.35-2.661.917-.65 1.863-1.124 2.839-1.42.976-.295 1.818-.502 2.528-.62v-.178c-.71-.059-1.552-.207-2.528-.443-.976-.237-1.922-.68-2.839-1.33-.916-.651-1.7-1.583-2.35-2.795-.65-1.212-.976-2.853-.976-4.923V37.66c0-.651-.044-1.331-.133-2.04a4.909 4.909 0 0 0-.71-1.997c-.384-.62-.946-1.138-1.685-1.552-.74-.414-1.73-.62-2.972-.62h-4.879V24h8.073c.946 0 2.07.237 3.37.71 1.301.473 2.543 1.197 3.726 2.173 1.183.976 2.188 2.188 3.016 3.637.828 1.449 1.242 3.178 1.242 5.189v16.943c0 1.419.31 2.572.931 3.46a6.897 6.897 0 0 0 2.262 2.084 8.868 8.868 0 0 0 2.75 1.02c.946.177 1.745.266 2.395.266v7.806zm24.66 0c-.65 0-1.449.089-2.395.266-.946.177-1.863.488-2.75.931a6.356 6.356 0 0 0-2.262 1.908c-.62.828-.931 1.862-.931 3.104v17.564c0 2.01-.414 3.74-1.242 5.189-.828 1.449-1.833 2.661-3.016 3.637s-2.425 1.7-3.726 2.173c-1.3.473-2.424.71-3.37.71h-8.073v-7.451h4.88c1.241 0 2.232-.207 2.97-.621.74-.414 1.302-.932 1.686-1.553a4.9 4.9 0 0 0 .71-1.995c.089-.71.133-1.39.133-2.04V72.432c0-1.715.325-3.134.976-4.258.65-1.124 1.434-2.01 2.35-2.661.917-.65 1.863-1.124 2.839-1.42.976-.295 1.818-.502 2.528-.62v-.178c-.71-.059-1.552-.207-2.528-.443-.976-.237-1.922-.68-2.839-1.33-.916-.651-1.7-1.583-2.35-2.795-.65-1.212-.976-2.853-.976-4.923V37.66c0-.651-.044-1.331-.133-2.04a4.909 4.909 0 0 0-.71-1.997c-.384-.62-.946-1.138-1.685-1.552-.74-.414-1.73-.62-2.972-.62h-4.879V24h8.073c.946 0 2.07.237 3.37.71 1.301.473 2.543 1.197 3.726 2.173 1.183.976 2.188 2.188 3.016 3.637.828 1.449 1.242 3.178 1.242 5.189v16.943c0 1.419.31 2.572.931 3.46a6.897 6.897 0 0 0 2.262 2.084 8.868 8.868 0 0 0 2.75 1.02c.946.177 1.745.266 2.395.266v7.806z" fill-rule="evenodd"/></svg>

core/language/en-GB/Buttons.multids

@@ -14,6 +14,8 @@ CloseOthers/Caption: close others
 CloseOthers/Hint: Close other tiddlers
 ControlPanel/Caption: control panel
 ControlPanel/Hint: Open control panel
+CopyToClipboard/Caption: copy to clipboard
+CopyToClipboard/Hint: Copy this text to the clipboard
 Delete/Caption: delete
 Delete/Hint: Delete this tiddler
 Edit/Caption: edit
@@ -139,6 +141,8 @@ LineWidth/Caption: line width
 LineWidth/Hint: Set line width for painting
 Link/Caption: link
 Link/Hint: Create wikitext link
+Linkify/Caption: wikilink
+Linkify/Hint: Wrap selection in square brackets
 ListBullet/Caption: bulleted list
 ListBullet/Hint: Apply bulleted list formatting to lines containing selection
 ListNumber/Caption: numbered list
@@ -159,6 +163,8 @@ PreviewType/Caption: preview type
 PreviewType/Hint: Choose preview type
 Quote/Caption: quote
 Quote/Hint: Apply quoted text formatting to lines containing selection
+RotateLeft/Caption: rotate left
+RotateLeft/Hint: Rotate image left by 90 degrees
 Size/Caption: image size
 Size/Caption/Height: Height:
 Size/Caption/Resize: Resize image
@@ -175,5 +181,7 @@ Subscript/Caption: subscript
 Subscript/Hint: Apply subscript formatting to selection
 Superscript/Caption: superscript
 Superscript/Hint: Apply superscript formatting to selection
+Transcludify/Caption: transclusion
+Transcludify/Hint: Wrap selection in curly brackets
 Underline/Caption: underline
 Underline/Hint: Apply underline formatting to selection

core/language/en-GB/ControlPanel.multids

@@ -13,6 +13,7 @@ Basics/Language/Prompt: Hello! Current language:
 Basics/NewJournal/Title/Prompt: Title of new journal tiddlers
 Basics/NewJournal/Text/Prompt: Text for new journal tiddlers
 Basics/NewJournal/Tags/Prompt: Tags for new journal tiddlers
+Basics/NewTiddler/Title/Prompt: Title of new tiddlers
 Basics/OverriddenShadowTiddlers/Prompt: Number of overridden shadow tiddlers:
 Basics/ShadowTiddlers/Prompt: Number of shadow tiddlers:
 Basics/Subtitle/Prompt: Subtitle:
@@ -125,6 +126,10 @@ Settings/NavigationHistory/Caption: Navigation History
 Settings/NavigationHistory/Hint: Update browser history when navigating to a tiddler:
 Settings/NavigationHistory/No/Description: Do not update history
 Settings/NavigationHistory/Yes/Description: Update history
+Settings/NavigationPermalinkviewMode/Caption: Permalink/permaview Mode
+Settings/NavigationPermalinkviewMode/Hint: Choose how permalink/permaview is handled:
+Settings/NavigationPermalinkviewMode/CopyToClipboard/Description: Copy permalink/permaview URL to clipboard
+Settings/NavigationPermalinkviewMode/UpdateAddressBar/Description: Update address bar with permalink/permaview URL
 Settings/PerformanceInstrumentation/Caption: Performance Instrumentation
 Settings/PerformanceInstrumentation/Hint: Displays performance statistics in the browser developer console. Requires reload to take effect
 Settings/PerformanceInstrumentation/Description: Enable performance instrumentation
@@ -139,6 +144,8 @@ Settings/ToolbarButtons/Icons/Description: Include icon
 Settings/ToolbarButtons/Text/Description: Include text
 Settings/DefaultSidebarTab/Caption: Default Sidebar Tab
 Settings/DefaultSidebarTab/Hint: Specify which sidebar tab is displayed by default
+Settings/DefaultMoreSidebarTab/Caption: Default More Sidebar Tab
+Settings/DefaultMoreSidebarTab/Hint: Specify which More sidebar tab is displayed by default
 Settings/LinkToBehaviour/Caption: Tiddler Opening Behaviour
 Settings/LinkToBehaviour/InsideRiver/Hint: Navigation from //within// the story river
 Settings/LinkToBehaviour/OutsideRiver/Hint: Navigation from //outside// the story river
@@ -155,6 +162,10 @@ Settings/MissingLinks/Hint: Choose whether to link to tiddlers that do not exist
 Settings/MissingLinks/Description: Enable links to missing tiddlers
 StoryView/Caption: Story View
 StoryView/Prompt: Current view:
+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
 Theme/Caption: Theme
 Theme/Prompt: Current theme:
 TiddlerFields/Caption: Tiddler Fields

core/language/en-GB/Docs/ModuleTypes.multids

@@ -2,6 +2,7 @@ title: $:/language/Docs/ModuleTypes/
 
 allfilteroperator: A sub-operator for the ''all'' filter operator.
 animation: Animations that may be used with the RevealWidget.
+authenticator: Defines how requests are authenticated by the built-in HTTP server.
 bitmapeditoroperation: A bitmap editor toolbar operation.
 command: Commands that can be executed under Node.js.
 config: Data to be inserted into `$tw.config`.
@@ -12,6 +13,7 @@ isfilteroperator: Operands for the ''is'' filter operator.
 library: Generic module type for general purpose JavaScript modules.
 macro: JavaScript macro definitions.
 parser: Parsers for different content types.
+route: Defines how individual URL patterns are handled by the built-in HTTP server.
 saver: Savers handle different methods for saving files from the browser.
 startup: Startup functions.
 storyview: Story views customise the animation and behaviour of list widgets.

core/language/en-GB/Docs/PaletteColours.multids

@@ -45,6 +45,8 @@ page-background: Page background
 pre-background: Preformatted code background
 pre-border: Preformatted code border
 primary: General primary
+select-tag-background: `<select>` element background
+select-tag-foreground: `<select>` element text
 sidebar-button-foreground: Sidebar button foreground
 sidebar-controls-foreground-hover: Sidebar controls foreground hover
 sidebar-controls-foreground: Sidebar controls foreground

core/language/en-GB/EditTemplate.multids

@@ -5,6 +5,8 @@ Body/Placeholder: Type the text for this tiddler
 Body/Preview/Type/Output: output
 Field/Remove/Caption: remove field
 Field/Remove/Hint: Remove field
+Field/Dropdown/Caption: field list
+Field/Dropdown/Hint: Show field list
 Fields/Add/Button: add
 Fields/Add/Name/Placeholder: field name
 Fields/Add/Prompt: Add a new field:
@@ -20,6 +22,7 @@ Tags/Dropdown/Hint: Show tag list
 Title/BadCharacterWarning: Warning: avoid using any of the characters <<bad-chars>> in tiddler titles
 Title/Exists/Prompt: Target tiddler already exists
 Title/Relink/Prompt: Update ''<$text text=<<fromTitle>>/>'' to ''<$text text=<<toTitle>>/>'' in the //tags// and //list// fields of other tiddlers
+Title/References/Prompt: The following references to this tiddler will not be automatically updated:
 Type/Dropdown/Caption: content type list
 Type/Dropdown/Hint: Show content type list
 Type/Delete/Caption: delete content type

core/language/en-GB/Fields.multids

@@ -14,11 +14,12 @@ draft.of: For draft tiddlers, contains the title of the tiddler of which this is
 draft.title: For draft tiddlers, contains the proposed new title of the tiddler
 footer: The footer text for a wizard
 hack-to-give-us-something-to-compare-against: A temporary storage field used in [[$:/core/templates/static.content]]
+hide-body: The view template will hide bodies of tiddlers if set to: ''yes''
 icon: The title of the tiddler containing the icon associated with a tiddler
-library: If set to "yes" indicates that a tiddler should be saved as a JavaScript library
+library: Indicates that a tiddler should be saved as a JavaScript library if set to: ''yes''
 list: An ordered list of tiddler titles associated with a tiddler
 list-before: If set, the title of a tiddler before which this tiddler should be added to the ordered list of tiddler titles, or at the start of the list if this field is present but empty
-list-after: If set, the title of the tiddler after which this tiddler should be added to the ordered list of tiddler titles
+list-after: If set, the title of the tiddler after which this tiddler should be added to the ordered list of tiddler titles, or at the end of the list if this field is present but empty
 modified: The date and time at which a tiddler was last modified
 modifier: The tiddler title associated with the person who last modified a tiddler
 name: The human readable name associated with a plugin tiddler
@@ -31,5 +32,6 @@ subtitle: The subtitle text for a wizard
 tags: A list of tags associated with a tiddler
 text: The body text of a tiddler
 title: The unique name of a tiddler
+toc-link: Suppresses the tiddler's link in a Table of Contents tree if set to: ''no'' 
 type: The content type of a tiddler
 version: Version information for a plugin

core/language/en-GB/Filters.multids

@@ -10,6 +10,7 @@ Orphans: Orphan tiddlers
 SystemTiddlers: System tiddlers
 ShadowTiddlers: Shadow tiddlers
 OverriddenShadowTiddlers: Overridden shadow tiddlers
+SessionTiddlers: Tiddlers modified since the wiki was loaded
 SystemTags: System tags
 StoryList: Tiddlers in the story river, excluding <$text text="$:/AdvancedSearch"/>
 TypedTiddlers: Non wiki-text tiddlers

core/language/en-GB/GettingStarted.tid

@@ -3,7 +3,7 @@ title: GettingStarted
 \define lingo-base() $:/language/ControlPanel/Basics/
 Welcome to ~TiddlyWiki and the ~TiddlyWiki community
 
-Before you start storing important information in ~TiddlyWiki it is important to make sure that you can reliably save changes. See https://tiddlywiki.com/#GettingStarted for details
+Before you start storing important information in ~TiddlyWiki it is vital to make sure that you can reliably save changes. See https://tiddlywiki.com/#GettingStarted for details
 
 !! Set up this ~TiddlyWiki
 

core/language/en-GB/Help/listen.tid

@@ -0,0 +1,34 @@
+title: $:/language/Help/listen
+description: Provides an HTTP server interface to TiddlyWiki
+
+Serves a wiki over HTTP.
+
+The listen command uses NamedCommandParameters:
+
+```
+--listen [<name>=<value>]...
+```
+
+All parameters are optional with safe defaults, and can be specified in any order. The recognised parameters are:
+
+* ''host'' - optional hostname to serve from (defaults to "127.0.0.1" aka "localhost")
+* ''path-prefix'' - optional prefix for paths
+* ''port'' - port number on which to listen; non-numeric values are interpreted as a system environment variable from which the port number is extracted (defaults to "8080")
+* ''credentials'' - pathname of credentials CSV file (relative to wiki folder)
+* ''anon-username'' - the username for signing edits for anonymous users
+* ''username'' - optional username for basic authentication
+* ''password'' - optional password for basic authentication
+* ''authenticated-user-header'' - optional name of header to be used for trusted authentication
+* ''readers'' - comma separated list of principals allowed to read from this wiki
+* ''writers'' - comma separated list of principals allowed to write to this wiki
+* ''csrf-disable'' - set to "yes" to disable CSRF checks (defaults to "no")
+* ''root-tiddler'' - the tiddler to serve at the root (defaults to "$:/core/save/all")
+* ''root-render-type'' - the content type to which the root tiddler should be rendered (defaults to "text/plain")
+* ''root-serve-type'' - the content type with which the root tiddler should be served (defaults to "text/html")
+* ''tls-cert'' - pathname of TLS certificate file (relative to wiki folder)
+* ''tls-key'' - pathname of TLS key file (relative to wiki folder)
+* ''debug-level'' - optional debug level; set to "debug" to view request details (defaults to "none")
+* ''gzip'' - set to "yes" to enable gzip compression for some http endpoints (defaults to "no")
+
+For information on opening up your instance to the entire local network, and possible security concerns, see the WebServer tiddler at TiddlyWiki.com.
+

core/language/en-GB/Help/load.tid

@@ -4,10 +4,12 @@ description: Load tiddlers from a file
 Load tiddlers from TiddlyWiki (`.html`), `.tiddler`, `.tid`, `.json` or other local files. The processing applied to incoming files is determined by the file extension. Use the alternative `import` command if you need to specify the deserializer and encoding explicitly.
 
 ```
---load <filepath>
---load <dirpath>
+--load <filepath> [noerror]
+--load <dirpath> [noerror]
 ```
 
+By default, the load command raises an error if no tiddlers are found. The error can be suppressed by providing the optional "noerror" parameter.
+
 To load tiddlers from an encrypted TiddlyWiki file you should first specify the password with the PasswordCommand. For example:
 
 ```

core/language/en-GB/Help/render.tid

@@ -13,8 +13,8 @@ A name and value for an additional variable may optionally also be specified.
 
 * ''tiddler-filter'': A filter identifying the tiddler(s) to be rendered
 * ''filename-filter'': Optional filter transforming tiddler titles into pathnames. If omitted, defaults to `[is[tiddler]addsuffix[.html]]`, which uses the unchanged tiddler title as the filename
-* ''template'': Optional template through which each tiddler is rendered
 * ''render-type'': Optional render type: `text/html` (the default) returns the full HTML text and `text/plain` just returns the text content (ie it ignores HTML tags and other unprintable material)
+* ''template'': Optional template through which each tiddler is rendered
 * ''name'': Name of optional variable
 * ''value'': Value of optional variable
 

core/language/en-GB/Help/server.tid

@@ -1,26 +1,25 @@
 title: $:/language/Help/server
-description: Provides an HTTP server interface to TiddlyWiki
+description: Provides an HTTP server interface to TiddlyWiki (deprecated in favour of the new listen command)
 
-The server built in to TiddlyWiki5 is very simple. Although compatible with TiddlyWeb it doesn't support many of the features needed for robust Internet-facing usage.
-
-At the root, it serves a rendering of a specified tiddler. Away from the root, it serves individual tiddlers encoded in JSON, and supports the basic HTTP operations for `GET`, `PUT` and `DELETE`.
+Legacy command to serve a wiki over HTTP.
 
 ```
---server <port> <roottiddler> <rendertype> <servetype> <username> <password> <host> <pathprefix>
+--server <port> <root-tiddler> <root-render-type> <root-serve-type> <username> <password> <host> <path-prefix> <debug-level>
 ```
 
 The parameters are:
 
-* ''port'' - port number to serve from (defaults to "8080")
-* ''roottiddler'' - the tiddler to serve at the root (defaults to "$:/core/save/all")
-* ''rendertype'' - the content type to which the root tiddler should be rendered (defaults to "text/plain")
-* ''servetype'' - the content type with which the root tiddler should be served (defaults to "text/html")
+* ''port'' - port number on which to listen; non-numeric values are interpreted as a system environment variable from which the port number is extracted (defaults to "8080")
+* ''root-tiddler'' - the tiddler to serve at the root (defaults to "$:/core/save/all")
+* ''root-render-type'' - the content type to which the root tiddler should be rendered (defaults to "text/plain")
+* ''root-serve-type'' - the content type with which the root tiddler should be served (defaults to "text/html")
 * ''username'' - the default username for signing edits
 * ''password'' - optional password for basic authentication
 * ''host'' - optional hostname to serve from (defaults to "127.0.0.1" aka "localhost")
-* ''pathprefix'' - optional prefix for paths
+* ''path-prefix'' - optional prefix for paths
+* ''debug-level'' - optional debug level; set to "debug" to view request details (defaults to "none")
 
-If the password parameter is specified then the browser will prompt the user for the username and password. Note that the password is transmitted in plain text so this implementation isn't suitable for general use.
+If the password parameter is specified then the browser will prompt the user for the username and password. Note that the password is transmitted in plain text so this implementation should only be used on a trusted network or over HTTPS.
 
 For example:
 
@@ -28,10 +27,17 @@ For example:
 --server 8080 $:/core/save/all text/plain text/html MyUserName passw0rd
 ```
 
-The username and password can be specified as empty strings if you need to set the hostname or pathprefix and don't want to require a password:
+The username and password can be specified as empty strings if you need to set the hostname or pathprefix and don't want to require a password.
+
 
 ```
 --server 8080 $:/core/save/all text/plain text/html "" "" 192.168.0.245
 ```
 
-To run multiple TiddlyWiki servers at the same time you'll need to put each one on a different port.
+Using an address like this exposes your system to the local network. For information on opening up your instance to the entire local network, and possible security concerns, see the WebServer tiddler at TiddlyWiki.com.
+
+To run multiple TiddlyWiki servers at the same time you'll need to put each one on a different port. It can be useful to use an environment variable to pass the port number to the Node.js process. This example references an environment variable called "MY_PORT_NUMBER":
+
+```
+--server MY_PORT_NUMBER $:/core/save/all text/plain text/html MyUserName passw0rd
+```

core/language/en-GB/Import.multids

@@ -7,9 +7,17 @@ Listing/Import/Caption: Import
 Listing/Select/Caption: Select
 Listing/Status/Caption: Status
 Listing/Title/Caption: Title
+Listing/Preview: Preview:
+Listing/Preview/Text: Text
+Listing/Preview/TextRaw: Text (Raw)
+Listing/Preview/Fields: Fields
+Listing/Preview/Diff: Diff
+Listing/Preview/DiffFields: Diff (Fields)
 Upgrader/Plugins/Suppressed/Incompatible: Blocked incompatible or obsolete plugin
 Upgrader/Plugins/Suppressed/Version: Blocked plugin (due to incoming <<incoming>> being older than existing <<existing>>)
 Upgrader/Plugins/Upgraded: Upgraded plugin from <<incoming>> to <<upgraded>>
 Upgrader/State/Suppressed: Blocked temporary state tiddler
 Upgrader/System/Suppressed: Blocked system tiddler
+Upgrader/System/Warning: Core module tiddler
+Upgrader/System/Alert: You are about to import a tiddler that will overwrite a core module tiddler. This is not recommended as it may make the system unstable
 Upgrader/ThemeTweaks/Created: Migrated theme tweak from <$text text=<<from>>/>

core/language/en-GB/Misc.multids

@@ -12,6 +12,7 @@ ConfirmOverwriteTiddler: Do you wish to overwrite the tiddler "<$text text=<<tit
 ConfirmEditShadowTiddler: You are about to edit a ShadowTiddler. Any changes will override the default system making future upgrades non-trivial. Are you sure you want to edit "<$text text=<<title>>/>"?
 Count: count
 DefaultNewTiddlerTitle: New Tiddler
+Diffs/CountMessage: <<diff-count>> differences
 DropMessage: Drop here (or use the 'Escape' key to cancel)
 Encryption/Cancel: Cancel
 Encryption/ConfirmClearPassword: Do you wish to clear the password? This will remove the encryption applied when saving this wiki

core/language/en-GB/Notifications.multids

@@ -2,3 +2,5 @@ title: $:/language/Notifications/
 
 Save/Done: Saved wiki
 Save/Starting: Starting to save wiki
+CopiedToClipboard/Succeeded: Copied to clipboard!
+CopiedToClipboard/Failed: Failed to copy to clipboard!

core/language/en-GB/ThemeTweaks.multids

@@ -7,7 +7,7 @@ Options/SidebarLayout: Sidebar layout
 Options/SidebarLayout/Fixed-Fluid: Fixed story, fluid sidebar
 Options/SidebarLayout/Fluid-Fixed: Fluid story, fixed sidebar
 Options/StickyTitles: Sticky titles
-Options/StickyTitles/Hint: Causes tiddler titles to "stick" to the top of the browser window. Caution: Does not work at all with Chrome, and causes some layout issues in Firefox
+Options/StickyTitles/Hint: Causes tiddler titles to "stick" to the top of the browser window
 Options/CodeWrapping: Wrap long lines in code blocks
 Settings: Settings
 Settings/FontFamily: Font family

core/modules/commander.js

@@ -94,6 +94,13 @@ Commander.prototype.executeNextCommand = function() {
 				if(this.verbose) {
 					this.streams.output.write("Executing command: " + commandName + " " + params.join(" ") + "\n");
 				}
+				// Parse named parameters if required
+				if(command.info.namedParameterMode) {
+					params = this.extractNamedParameters(params,command.info.mandatoryParameters);
+					if(typeof params === "string") {
+						return this.callback(params);
+					}
+				}
 				if(command.info.synchronous) {
 					// Synchronous command
 					c = new command.Command(params,this);
@@ -122,6 +129,35 @@ Commander.prototype.executeNextCommand = function() {
 	}
 };
 
+/*
+Given an array of parameter strings `params` in name:value format, and an array of mandatory parameter names in `mandatoryParameters`, returns a hashmap of values or a string if error
+*/
+Commander.prototype.extractNamedParameters = function(params,mandatoryParameters) {
+	mandatoryParameters = mandatoryParameters || [];
+	var errors = [],
+		paramsByName = Object.create(null);
+	// Extract the parameters
+	$tw.utils.each(params,function(param) {
+		var index = param.indexOf("=");
+		if(index < 1) {
+			errors.push("malformed named parameter: '" + param + "'");
+		}
+		paramsByName[param.slice(0,index)] = $tw.utils.trim(param.slice(index+1));
+	});
+	// Check the mandatory parameters are present
+	$tw.utils.each(mandatoryParameters,function(mandatoryParameter) {
+		if(!$tw.utils.hop(paramsByName,mandatoryParameter)) {
+			errors.push("missing mandatory parameter: '" + mandatoryParameter + "'");
+		}
+	});
+	// Return any errors
+	if(errors.length > 0) {
+		return errors.join(" and\n");
+	} else {
+		return paramsByName;		
+	}
+};
+
 Commander.initCommands = function(moduleType) {
 	moduleType = moduleType || "command";
 	$tw.commands = {};

core/modules/commands/listen.js

@@ -0,0 +1,48 @@
+/*\
+title: $:/core/modules/commands/listen.js
+type: application/javascript
+module-type: command
+
+Listen for HTTP requests and serve tiddlers
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+var Server = require("$:/core/modules/server/server.js").Server;
+
+exports.info = {
+	name: "listen",
+	synchronous: true,
+	namedParameterMode: true,
+	mandatoryParameters: [],
+};
+
+var Command = function(params,commander,callback) {
+	var self = this;
+	this.params = params;
+	this.commander = commander;
+	this.callback = callback;
+};
+
+Command.prototype.execute = function() {
+	var self = this;
+	if(!$tw.boot.wikiTiddlersPath) {
+		$tw.utils.warning("Warning: Wiki folder '" + $tw.boot.wikiPath + "' does not exist or is missing a tiddlywiki.info file");
+	}
+	// Set up server
+	this.server = new Server({
+		wiki: this.commander.wiki,
+		variables: self.params
+	});
+	var nodeServer = this.server.listen();
+	$tw.hooks.invokeHook("th-server-command-post-start",this.server,nodeServer,"tiddlywiki");
+	return null;
+};
+
+exports.Command = Command;
+
+})();

core/modules/commands/load.js

@@ -38,7 +38,7 @@ Command.prototype.execute = function() {
 			count++;
 		});
 	});
-	if(!count) {
+	if(!count && self.params[1] !== "noerror") {
 		self.callback("No tiddlers found in file \"" + self.params[0] + "\"");
 	} else {
 		self.callback(null);

core/modules/commands/server.js

@@ -3,7 +3,7 @@ title: $:/core/modules/commands/server.js
 type: application/javascript
 module-type: command
 
-Serve tiddlers over http
+Deprecated legacy command for serving tiddlers
 
 \*/
 (function(){
@@ -12,300 +12,41 @@ Serve tiddlers over http
 /*global $tw: false */
 "use strict";
 
-if($tw.node) {
-	var util = require("util"),
-		fs = require("fs"),
-		url = require("url"),
-		path = require("path"),
-		http = require("http");
-}
+var Server = require("$:/core/modules/server/server.js").Server;
 
 exports.info = {
 	name: "server",
 	synchronous: true
 };
 
-/*
-A simple HTTP server with regexp-based routes
-*/
-function SimpleServer(options) {
-	this.routes = options.routes || [];
-	this.wiki = options.wiki;
-	this.variables = options.variables || {};
-}
-
-SimpleServer.prototype.set = function(obj) {
-	var self = this;
-	$tw.utils.each(obj,function(value,name) {
-		self.variables[name] = value;
-	});
-};
-
-SimpleServer.prototype.get = function(name) {
-	return this.variables[name];
-};
-
-SimpleServer.prototype.addRoute = function(route) {
-	this.routes.push(route);
-};
-
-SimpleServer.prototype.findMatchingRoute = function(request,state) {
-	var pathprefix = this.get("pathprefix") || "";
-	for(var t=0; t<this.routes.length; t++) {
-		var potentialRoute = this.routes[t],
-			pathRegExp = potentialRoute.path,
-			pathname = state.urlInfo.pathname,
-			match;
-		if(pathprefix) {
-			if(pathname.substr(0,pathprefix.length) === pathprefix) {
-				pathname = pathname.substr(pathprefix.length);
-				match = potentialRoute.path.exec(pathname);
-			} else {
-				match = false;
-			}
-		} else {
-			match = potentialRoute.path.exec(pathname);
-		}
-		if(match && request.method === potentialRoute.method) {
-			state.params = [];
-			for(var p=1; p<match.length; p++) {
-				state.params.push(match[p]);
-			}
-			return potentialRoute;
-		}
-	}
-	return null;
-};
-
-SimpleServer.prototype.checkCredentials = function(request,incomingUsername,incomingPassword) {
-	var header = request.headers.authorization || "",
-		token = header.split(/\s+/).pop() || "",
-		auth = $tw.utils.base64Decode(token),
-		parts = auth.split(/:/),
-		username = parts[0],
-		password = parts[1];
-	if(incomingUsername === username && incomingPassword === password) {
-		return "ALLOWED";
-	} else {
-		return "DENIED";
-	}
-};
-
-SimpleServer.prototype.requestHandler = function(request,response) {
-	// Compose the state object
-	var self = this;
-	var state = {};
-	state.wiki = self.wiki;
-	state.server = self;
-	state.urlInfo = url.parse(request.url);
-	// Find the route that matches this path
-	var route = self.findMatchingRoute(request,state);
-	// Check for the username and password if we've got one
-	var username = self.get("username"),
-		password = self.get("password");
-	if(username && password) {
-		// Check they match
-		if(self.checkCredentials(request,username,password) !== "ALLOWED") {
-			var servername = state.wiki.getTiddlerText("$:/SiteTitle") || "TiddlyWiki5";
-			response.writeHead(401,"Authentication required",{
-				"WWW-Authenticate": 'Basic realm="Please provide your username and password to login to ' + servername + '"'
-			});
-			response.end();
-			return;
-		}
-	}
-	// Return a 404 if we didn't find a route
-	if(!route) {
-		response.writeHead(404);
-		response.end();
-		return;
-	}
-	// Set the encoding for the incoming request
-	// TODO: Presumably this would need tweaking if we supported PUTting binary tiddlers
-	request.setEncoding("utf8");
-	// Dispatch the appropriate method
-	switch(request.method) {
-		case "GET": // Intentional fall-through
-		case "DELETE":
-			route.handler(request,response,state);
-			break;
-		case "PUT":
-			var data = "";
-			request.on("data",function(chunk) {
-				data += chunk.toString();
-			});
-			request.on("end",function() {
-				state.data = data;
-				route.handler(request,response,state);
-			});
-			break;
-	}
-};
-	
-SimpleServer.prototype.listen = function(port,host) {
-	http.createServer(this.requestHandler.bind(this)).listen(port,host);
-};
-
 var Command = function(params,commander,callback) {
+	var self = this;
 	this.params = params;
 	this.commander = commander;
 	this.callback = callback;
-	// Set up server
-	this.server = new SimpleServer({
-		wiki: this.commander.wiki
-	});
-	// Add route handlers
-	this.server.addRoute({
-		method: "PUT",
-		path: /^\/recipes\/default\/tiddlers\/(.+)$/,
-		handler: function(request,response,state) {
-			var title = decodeURIComponent(state.params[0]),
-				fields = JSON.parse(state.data);
-			// Pull up any subfields in the `fields` object
-			if(fields.fields) {
-				$tw.utils.each(fields.fields,function(field,name) {
-					fields[name] = field;
-				});
-				delete fields.fields;
-			}
-			// Remove any revision field
-			if(fields.revision) {
-				delete fields.revision;
-			}
-			state.wiki.addTiddler(new $tw.Tiddler(state.wiki.getCreationFields(),fields,{title: title},state.wiki.getModificationFields()));
-			var changeCount = state.wiki.getChangeCount(title).toString();
-			response.writeHead(204, "OK",{
-				Etag: "\"default/" + encodeURIComponent(title) + "/" + changeCount + ":\"",
-				"Content-Type": "text/plain"
-			});
-			response.end();
-		}
-	});
-	this.server.addRoute({
-		method: "DELETE",
-		path: /^\/bags\/default\/tiddlers\/(.+)$/,
-		handler: function(request,response,state) {
-			var title = decodeURIComponent(state.params[0]);
-			state.wiki.deleteTiddler(title);
-			response.writeHead(204, "OK", {
-				"Content-Type": "text/plain"
-			});
-			response.end();
-		}
-	});
-	this.server.addRoute({
-		method: "GET",
-		path: /^\/$/,
-		handler: function(request,response,state) {
-			response.writeHead(200, {"Content-Type": state.server.get("serveType")});
-			var text = state.wiki.renderTiddler(state.server.get("renderType"),state.server.get("rootTiddler"));
-			response.end(text,"utf8");
-		}
-	});
-	this.server.addRoute({
-		method: "GET",
-		path: /^\/status$/,
-		handler: function(request,response,state) {
-			response.writeHead(200, {"Content-Type": "application/json"});
-			var text = JSON.stringify({
-				username: state.server.get("username"),
-				space: {
-					recipe: "default"
-				},
-				tiddlywiki_version: $tw.version
-			});
-			response.end(text,"utf8");
-		}
-	});
-	this.server.addRoute({
-		method: "GET",
-		path: /^\/favicon.ico$/,
-		handler: function(request,response,state) {
-			response.writeHead(200, {"Content-Type": "image/x-icon"});
-			var buffer = state.wiki.getTiddlerText("$:/favicon.ico","");
-			response.end(buffer,"base64");
-		}
-	});
-	this.server.addRoute({
-		method: "GET",
-		path: /^\/recipes\/default\/tiddlers.json$/,
-		handler: function(request,response,state) {
-			response.writeHead(200, {"Content-Type": "application/json"});
-			var tiddlers = [];
-			state.wiki.forEachTiddler({sortField: "title"},function(title,tiddler) {
-				var tiddlerFields = {};
-				$tw.utils.each(tiddler.fields,function(field,name) {
-					if(name !== "text") {
-						tiddlerFields[name] = tiddler.getFieldString(name);
-					}
-				});
-				tiddlerFields.revision = state.wiki.getChangeCount(title);
-				tiddlerFields.type = tiddlerFields.type || "text/vnd.tiddlywiki";
-				tiddlers.push(tiddlerFields);
-			});
-			var text = JSON.stringify(tiddlers);
-			response.end(text,"utf8");
-		}
-	});
-	this.server.addRoute({
-		method: "GET",
-		path: /^\/recipes\/default\/tiddlers\/(.+)$/,
-		handler: function(request,response,state) {
-			var title = decodeURIComponent(state.params[0]),
-				tiddler = state.wiki.getTiddler(title),
-				tiddlerFields = {},
-				knownFields = [
-					"bag", "created", "creator", "modified", "modifier", "permissions", "recipe", "revision", "tags", "text", "title", "type", "uri"
-				];
-			if(tiddler) {
-				$tw.utils.each(tiddler.fields,function(field,name) {
-					var value = tiddler.getFieldString(name);
-					if(knownFields.indexOf(name) !== -1) {
-						tiddlerFields[name] = value;
-					} else {
-						tiddlerFields.fields = tiddlerFields.fields || {};
-						tiddlerFields.fields[name] = value;
-					}
-				});
-				tiddlerFields.revision = state.wiki.getChangeCount(title);
-				tiddlerFields.type = tiddlerFields.type || "text/vnd.tiddlywiki";
-				response.writeHead(200, {"Content-Type": "application/json"});
-				response.end(JSON.stringify(tiddlerFields),"utf8");
-			} else {
-				response.writeHead(404);
-				response.end();
-			}
-		}
-	});
 };
 
 Command.prototype.execute = function() {
 	if(!$tw.boot.wikiTiddlersPath) {
 		$tw.utils.warning("Warning: Wiki folder '" + $tw.boot.wikiPath + "' does not exist or is missing a tiddlywiki.info file");
 	}
-	var port = this.params[0] || "8080",
-		rootTiddler = this.params[1] || "$:/core/save/all",
-		renderType = this.params[2] || "text/plain",
-		serveType = this.params[3] || "text/html",
-		username = this.params[4],
-		password = this.params[5],
-		host = this.params[6] || "127.0.0.1",
-		pathprefix = this.params[7];
-	this.server.set({
-		rootTiddler: rootTiddler,
-		renderType: renderType,
-		serveType: serveType,
-		username: username,
-		password: password,
-		pathprefix: pathprefix
+	// Set up server
+	this.server = new Server({
+		wiki: this.commander.wiki,
+		variables: {
+			port: this.params[0],
+			host: this.params[6],
+			"root-tiddler": this.params[1],
+			"root-render-type": this.params[2],
+			"root-serve-type": this.params[3],
+			username: this.params[4],
+			password: this.params[5],
+			"path-prefix": this.params[7],
+			"debug-level": this.params[8]
+		}
 	});
-	this.server.listen(port,host);
-	$tw.utils.log("Serving on " + host + ":" + port,"brown/orange");
-	$tw.utils.log("(press ctrl-C to exit)","red");
-	// Warn if required plugins are missing
-	if(!$tw.wiki.getTiddler("$:/plugins/tiddlywiki/tiddlyweb") || !$tw.wiki.getTiddler("$:/plugins/tiddlywiki/filesystem")) {
-		$tw.utils.warning("Warning: Plugins required for client-server operation (\"tiddlywiki/filesystem\" and \"tiddlywiki/tiddlyweb\") are missing from tiddlywiki.info file");
-	}
+	var nodeServer = this.server.listen();
+	$tw.hooks.invokeHook("th-server-command-post-start",this.server,nodeServer,"tiddlywiki");
 	return null;
 };
 

core/modules/editor/engines/framed.js

@@ -70,10 +70,14 @@ function FramedEngine(options) {
 	if(this.widget.editRows) {
 		this.domNode.setAttribute("rows",this.widget.editRows);
 	}
+	if(this.widget.editTabIndex) {
+		this.iframeNode.setAttribute("tabindex",this.widget.editTabIndex);
+	}
 	// Copy the styles from the dummy textarea
 	this.copyStyles();
 	// Add event listeners
 	$tw.utils.addEventListeners(this.domNode,[
+		{name: "click",handlerObject: this,handlerMethod: "handleClickEvent"},
 		{name: "input",handlerObject: this,handlerMethod: "handleInputEvent"},
 		{name: "keydown",handlerObject: this.widget,handlerMethod: "handleKeydownEvent"}
 	]);
@@ -147,6 +151,14 @@ FramedEngine.prototype.focus  = function() {
 	}
 };
 
+/*
+Handle a click
+*/
+FramedEngine.prototype.handleClickEvent = function(event) {
+	this.fixHeight();
+	return true;
+};
+
 /*
 Handle a dom "input" event which occurs when the text has changed
 */

core/modules/editor/engines/simple.js

@@ -49,6 +49,9 @@ function SimpleEngine(options) {
 	if(this.widget.editClass) {
 		this.domNode.className = this.widget.editClass;
 	}
+	if(this.widget.editTabIndex) {
+		this.domNode.setAttribute("tabindex",this.widget.editTabIndex);
+	}
 	// Add an input event handler
 	$tw.utils.addEventListeners(this.domNode,[
 		{name: "focus", handlerObject: this, handlerMethod: "handleFocusEvent"},

core/modules/editor/factory.js

@@ -176,6 +176,7 @@ function editTextWidgetFactory(toolbarEngine,nonToolbarEngine) {
 		this.editMinHeight = this.getAttribute("minHeight",DEFAULT_MIN_TEXT_AREA_HEIGHT);
 		this.editFocusPopup = this.getAttribute("focusPopup");
 		this.editFocus = this.getAttribute("focus");
+		this.editTabIndex = this.getAttribute("tabindex");
 		// Get the default editor element tag and type
 		var tag,type;
 		if(this.editField === "text") {
@@ -198,7 +199,7 @@ function editTextWidgetFactory(toolbarEngine,nonToolbarEngine) {
 		this.makeChildWidgets();
 		// Determine whether to show the toolbar
 		this.editShowToolbar = this.wiki.getTiddlerText(ENABLE_TOOLBAR_TITLE,"yes");
-		this.editShowToolbar = (this.editShowToolbar === "yes") && !!(this.children && this.children.length > 0);
+		this.editShowToolbar = (this.editShowToolbar === "yes") && !!(this.children && this.children.length > 0) && (!this.document.isTiddlyWikiFakeDom);
 	};
 
 	/*
@@ -207,7 +208,7 @@ function editTextWidgetFactory(toolbarEngine,nonToolbarEngine) {
 	EditTextWidget.prototype.refresh = function(changedTiddlers) {
 		var changedAttributes = this.computeAttributes();
 		// Completely rerender if any of our attributes have changed
-		if(changedAttributes.tiddler || changedAttributes.field || changedAttributes.index || changedAttributes["default"] || changedAttributes["class"] || changedAttributes.placeholder || changedAttributes.size || changedAttributes.autoHeight || changedAttributes.minHeight || changedAttributes.focusPopup ||  changedAttributes.rows || changedTiddlers[HEIGHT_MODE_TITLE] || changedTiddlers[ENABLE_TOOLBAR_TITLE]) {
+		if(changedAttributes.tiddler || changedAttributes.field || changedAttributes.index || changedAttributes["default"] || changedAttributes["class"] || changedAttributes.placeholder || changedAttributes.size || changedAttributes.autoHeight || changedAttributes.minHeight || changedAttributes.focusPopup ||  changedAttributes.rows || changedAttributes.tabindex || changedTiddlers[HEIGHT_MODE_TITLE] || changedTiddlers[ENABLE_TOOLBAR_TITLE]) {
 			this.refreshSelf();
 			return true;
 		} else if(changedTiddlers[this.editTitle]) {
@@ -216,7 +217,7 @@ function editTextWidgetFactory(toolbarEngine,nonToolbarEngine) {
 		}
 		this.engine.fixHeight();
 		if(this.editShowToolbar) {
-			return this.refreshChildren(changedTiddlers);			
+			return this.refreshChildren(changedTiddlers);
 		} else {
 			return false;
 		}
@@ -266,7 +267,7 @@ function editTextWidgetFactory(toolbarEngine,nonToolbarEngine) {
 				    el.dispatchEvent(clickEvent);
 					event.preventDefault();
 					event.stopPropagation();
-					return true;			
+					return true;
 				}
 			}
 		}

core/modules/editor/operations/bitmap/rotate-left.js

@@ -0,0 +1,24 @@
+/*\
+title: $:/core/modules/editor/operations/bitmap/rotate-left.js
+type: application/javascript
+module-type: bitmapeditoroperation
+
+Bitmap editor operation to rotate the image left by 90 degrees
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+exports["rotate-left"] = function(event) {
+	// Rotate the canvas left by 90 degrees
+	this.rotateCanvasLeft();
+	// Update the input controls
+	this.refreshToolbar();
+	// Save the image into the tiddler
+	this.saveChanges();
+};
+
+})();

core/modules/editor/operations/text/save-selection.js

@@ -0,0 +1,23 @@
+/*\
+title: $:/core/modules/editor/operations/text/save-selection.js
+type: application/javascript
+module-type: texteditoroperation
+
+Text editor operation to save the current selection in a specified tiddler
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+exports["save-selection"] = function(event,operation) {
+	var tiddler = event.paramObject.tiddler,
+		field = event.paramObject.field || "text";
+	if(tiddler && field) {
+		this.wiki.setText(tiddler,field,null,operation.text.substring(operation.selStart,operation.selEnd));
+	}
+};
+
+})();

core/modules/editor/operations/text/wrap-selection.js

@@ -16,14 +16,12 @@ exports["wrap-selection"] = function(event,operation) {
 	if(operation.selStart === operation.selEnd) {
 		// No selection; check if we're within the prefix/suffix
 		if(operation.text.substring(operation.selStart - event.paramObject.prefix.length,operation.selStart + event.paramObject.suffix.length) === event.paramObject.prefix + event.paramObject.suffix) {
-			// Remove the prefix and suffix unless they comprise the entire text
-			if(operation.selStart > event.paramObject.prefix.length || (operation.selEnd + event.paramObject.suffix.length) < operation.text.length ) {
-				operation.cutStart = operation.selStart - event.paramObject.prefix.length;
-				operation.cutEnd = operation.selEnd + event.paramObject.suffix.length;
-				operation.replacement = "";
-				operation.newSelStart = operation.cutStart;
-				operation.newSelEnd = operation.newSelStart;
-			}
+			// Remove the prefix and suffix
+			operation.cutStart = operation.selStart - event.paramObject.prefix.length;
+			operation.cutEnd = operation.selEnd + event.paramObject.suffix.length;
+			operation.replacement = "";
+			operation.newSelStart = operation.cutStart;
+			operation.newSelEnd = operation.newSelStart;
 		} else {
 			// Wrap the cursor instead
 			operation.cutStart = operation.selStart;

core/modules/filters.js

@@ -40,12 +40,23 @@ function parseFilterOperation(operators,filterString,p) {
 		nextBracketPos += p;
 		var bracket = filterString.charAt(nextBracketPos);
 		operator.operator = filterString.substring(p,nextBracketPos);
-
 		// Any suffix?
 		var colon = operator.operator.indexOf(':');
 		if(colon > -1) {
+			// The raw suffix for older filters
 			operator.suffix = operator.operator.substring(colon + 1);
 			operator.operator = operator.operator.substring(0,colon) || "field";
+			// The processed suffix for newer filters
+			operator.suffixes = [];
+			$tw.utils.each(operator.suffix.split(":"),function(subsuffix) {
+				operator.suffixes.push([]);
+				$tw.utils.each(subsuffix.split(","),function(entry) {
+					entry = $tw.utils.trim(entry);
+					if(entry) {
+						operator.suffixes[operator.suffixes.length - 1].push(entry); 
+					}
+				});
+			});
 		}
 		// Empty operator means: title
 		else if(operator.operator === "") {
@@ -108,7 +119,7 @@ exports.parseFilter = function(filterString) {
 		p = 0, // Current position in the filter string
 		match;
 	var whitespaceRegExp = /(\s+)/mg,
-		operandRegExp = /((?:\+|\-)?)(?:(\[)|(?:"([^"]*)")|(?:'([^']*)')|([^\s\[\]]+))/mg;
+		operandRegExp = /((?:\+|\-|~)?)(?:(\[)|(?:"([^"]*)")|(?:'([^']*)')|([^\s\[\]]+))/mg;
 	while(p < filterString.length) {
 		// Skip any whitespace
 		whitespaceRegExp.lastIndex = p;
@@ -208,6 +219,7 @@ exports.compileFilter = function(filterString) {
 							operand: operand,
 							prefix: operator.prefix,
 							suffix: operator.suffix,
+							suffixes: operator.suffixes,
 							regexp: operator.regexp
 						},{
 							wiki: self,
@@ -247,6 +259,13 @@ exports.compileFilter = function(filterString) {
 						results.splice(0,results.length);
 						$tw.utils.pushTop(results,operationSubFunction(source,widget));
 					};
+				case "~": // This operation is unioned into the result only if the main result so far is empty
+					return function(results,source,widget) {
+						if(results.length === 0) {
+							// Main result so far is empty
+							$tw.utils.pushTop(results,operationSubFunction(source,widget));
+						}
+					};
 			}
 		})());
 	});

core/modules/filters/contains.js

@@ -0,0 +1,45 @@
+/*\
+title: $:/core/modules/filters/contains.js
+type: application/javascript
+module-type: filteroperator
+
+Filter operator for finding values in array fields
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+/*
+Export our filter function
+*/
+exports.contains = function(source,operator,options) {
+	var results = [],
+		fieldname = (operator.suffix || "list").toLowerCase();
+	if(operator.prefix === "!") {
+		source(function(tiddler,title) {
+			if(tiddler) {
+				var list = tiddler.getFieldList(fieldname);
+				if(list.indexOf(operator.operand) === -1) {
+					results.push(title);
+				}
+			} else {
+				results.push(title);
+			}
+		});
+	} else {
+		source(function(tiddler,title) {
+			if(tiddler) {
+				var list = tiddler.getFieldList(fieldname);
+				if(list.indexOf(operator.operand) !== -1) {
+					results.push(title);
+				}
+			}
+		});
+	}
+	return results;
+};
+
+})();

core/modules/filters/each.js

@@ -18,18 +18,34 @@ Export our filter function
 */
 exports.each = function(source,operator,options) {
 	var results =[] ,
-		value,values = {},
-		field = operator.operand || "title";
-	if(operator.suffix !== "list-item") {
+	value,values = {},
+	field = operator.operand || "title";
+	if(operator.suffix === "value" && field === "title") {
 		source(function(tiddler,title) {
-			if(tiddler) {
-				value = (field === "title") ? title : tiddler.getFieldString(field);
-				if(!$tw.utils.hop(values,value)) {
-					values[value] = true;
-					results.push(title);
-				}
+			if(!$tw.utils.hop(values,title)) {
+				values[title] = true;
+				results.push(title);
 			}
 		});
+	} else if(operator.suffix !== "list-item") {
+		if(field === "title") {
+			source(function(tiddler,title) {
+				if(tiddler && !$tw.utils.hop(values,title)) {
+					values[title] = true;
+					results.push(title);
+				}
+			});
+		} else {
+			source(function(tiddler,title) {
+				if(tiddler) {
+					value = tiddler.getFieldString(field);
+					if(!$tw.utils.hop(values,value)) {
+						values[value] = true;
+						results.push(title);
+					}
+				}
+			});
+		}
 	} else {
 		source(function(tiddler,title) {
 			if(tiddler) {

core/modules/filters/encodings.js

@@ -19,7 +19,12 @@ Export our filter functions
 exports.decodeuricomponent = function(source,operator,options) {
 	var results = [];
 	source(function(tiddler,title) {
-		results.push(decodeURIComponent(title));
+		var value = title;
+		try {
+			value = decodeURIComponent(title);
+		} catch(e) {
+		}
+		results.push(value);
 	});
 	return results;
 };
@@ -35,7 +40,12 @@ exports.encodeuricomponent = function(source,operator,options) {
 exports.decodeuri = function(source,operator,options) {
 	var results = [];
 	source(function(tiddler,title) {
-		results.push(decodeURI(title));
+		var value = title;
+		try {
+			value = decodeURI(title);
+		} catch(e) {
+		}
+		results.push(value);
 	});
 	return results;
 };

core/modules/filters/is.js

@@ -45,4 +45,4 @@ exports.is = function(source,operator,options) {
 	}
 };
 
-})();
+})();

core/modules/filters/is/variable.js

@@ -0,0 +1,36 @@
+/*\
+title: $:/core/modules/filters/is/variable.js
+type: application/javascript
+module-type: isfilteroperator
+
+Filter function for [is[variable]]
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+/*
+Export our filter function
+*/
+exports.variable = function(source,prefix,options) {
+	var results = [];
+	if(prefix === "!") {
+		source(function(tiddler,title) {
+			if(!(title in options.widget.variables)) {
+				results.push(title);
+			}
+		});
+	} else {
+		source(function(tiddler,title) {
+			if(title in options.widget.variables) {
+				results.push(title);
+			}
+		});
+	}
+	return results;
+};
+
+})();

core/modules/filters/listops.js

@@ -24,7 +24,7 @@ exports.order = function(source,operator,options) {
 	} else {
 		source(function(tiddler,title) {
 			results.push(title);
-		});		
+		});
 	}
 	return results;
 };
@@ -44,7 +44,7 @@ exports.reverse = function(source,operator,options) {
 First entry/entries in list
 */
 exports.first = function(source,operator,options) {
-	var count = parseInt(operator.operand) || 1,
+	var count = $tw.utils.getInt(operator.operand,1),
 		results = [];
 	source(function(tiddler,title) {
 		results.push(title);
@@ -56,7 +56,7 @@ exports.first = function(source,operator,options) {
 Last entry/entries in list
 */
 exports.last = function(source,operator,options) {
-	var count = parseInt(operator.operand) || 1,
+	var count = $tw.utils.getInt(operator.operand,1),
 		results = [];
 	source(function(tiddler,title) {
 		results.push(title);
@@ -68,7 +68,7 @@ exports.last = function(source,operator,options) {
 All but the first entry/entries of the list
 */
 exports.rest = function(source,operator,options) {
-	var count = parseInt(operator.operand) || 1,
+	var count = $tw.utils.getInt(operator.operand,1),
 		results = [];
 	source(function(tiddler,title) {
 		results.push(title);
@@ -82,7 +82,7 @@ exports.bf = exports.rest;
 All but the last entry/entries of the list
 */
 exports.butlast = function(source,operator,options) {
-	var count = parseInt(operator.operand) || 1,
+	var count = $tw.utils.getInt(operator.operand,1),
 		results = [];
 	source(function(tiddler,title) {
 		results.push(title);
@@ -95,7 +95,7 @@ exports.bl = exports.butlast;
 The nth member of the list
 */
 exports.nth = function(source,operator,options) {
-	var count = parseInt(operator.operand) || 1,
+	var count = $tw.utils.getInt(operator.operand,1),
 		results = [];
 	source(function(tiddler,title) {
 		results.push(title);

core/modules/filters/math.js

@@ -0,0 +1,142 @@
+/*\
+title: $:/core/modules/filters/math.js
+type: application/javascript
+module-type: filteroperator
+
+Filter operators for math. Unary/binary operators work on each item in turn, and return a new item list.
+
+Sum/product/maxall/minall operate on the entire list, returning a single item.
+
+Note that strings are converted to numbers automatically. Trailing non-digits are ignored.
+
+* "" converts to 0
+* "12kk" converts to 12
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+exports.negate = makeNumericBinaryOperator(
+	function(a) {return -a}
+);
+
+exports.abs = makeNumericBinaryOperator(
+	function(a) {return Math.abs(a)}
+);
+
+exports.ceil = makeNumericBinaryOperator(
+	function(a) {return Math.ceil(a)}
+);
+
+exports.floor = makeNumericBinaryOperator(
+	function(a) {return Math.floor(a)}
+);
+
+exports.round = makeNumericBinaryOperator(
+	function(a) {return Math.round(a)}
+);
+
+exports.trunc = makeNumericBinaryOperator(
+	function(a) {return Math.trunc(a)}
+);
+
+exports.sign = makeNumericBinaryOperator(
+	function(a) {return Math.sign(a)}
+);
+
+exports.add = makeNumericBinaryOperator(
+	function(a,b) {return a + b;}
+);
+
+exports.subtract = makeNumericBinaryOperator(
+	function(a,b) {return a - b;}
+);
+
+exports.multiply = makeNumericBinaryOperator(
+	function(a,b) {return a * b;}
+);
+
+exports.divide = makeNumericBinaryOperator(
+	function(a,b) {return a / b;}
+);
+
+exports.remainder = makeNumericBinaryOperator(
+	function(a,b) {return a % b;}
+);
+
+exports.max = makeNumericBinaryOperator(
+	function(a,b) {return Math.max(a,b);}
+);
+
+exports.min = makeNumericBinaryOperator(
+	function(a,b) {return Math.min(a,b);}
+);
+
+exports.fixed = makeNumericBinaryOperator(
+	function(a,b) {return Number.prototype.toFixed.call(a,b);}
+);
+
+exports.precision = makeNumericBinaryOperator(
+	function(a,b) {return Number.prototype.toPrecision.call(a,b);}
+);
+
+exports.exponential = makeNumericBinaryOperator(
+	function(a,b) {return Number.prototype.toExponential.call(a,b);}
+);
+
+exports.sum = makeNumericArrayOperator(
+	function(accumulator,value) {return accumulator + value},
+	0 // Initial value
+);
+
+exports.product = makeNumericArrayOperator(
+	function(accumulator,value) {return accumulator * value},
+	1 // Initial value
+);
+
+exports.maxall = makeNumericArrayOperator(
+	function(accumulator,value) {return Math.max(accumulator,value)},
+	-Infinity // Initial value
+);
+
+exports.minall = makeNumericArrayOperator(
+	function(accumulator,value) {return Math.min(accumulator,value)},
+	Infinity // Initial value
+);
+
+function makeNumericBinaryOperator(fnCalc) {
+	return function(source,operator,options) {
+		var result = [],
+			numOperand = parseNumber(operator.operand);
+		source(function(tiddler,title) {
+			result.push(stringifyNumber(fnCalc(parseNumber(title),numOperand)));
+		});
+		return result;
+	};
+}
+
+function makeNumericArrayOperator(fnCalc,initialValue) {
+	initialValue = initialValue || 0;
+	return function(source,operator,options) {
+		var result = [];
+		source(function(tiddler,title) {
+			result.push(title);
+		});
+		return [stringifyNumber(result.reduce(function(accumulator,currentValue) {
+			return fnCalc(accumulator,parseNumber(currentValue));
+		},initialValue))];
+	};
+}
+
+function parseNumber(str) {
+	return parseFloat(str) || 0;
+}
+
+function stringifyNumber(num) {
+	return num + "";
+}
+
+})();

core/modules/filters/range.js

@@ -0,0 +1,99 @@
+/*\
+title: $:/core/modules/filters/range.js
+type: application/javascript
+module-type: filteroperator
+
+Filter operator for generating a numeric range.
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+/*
+Export our filter function
+*/
+exports.range = function(source,operator,options) {
+	var results = [];
+	// Split the operand into numbers delimited by these symbols
+	var parts = operator.operand.split(/[,:;]/g),
+		beg, end, inc, i, fixed = 0;
+	for (i=0; i<parts.length; i++) {
+		// Validate real number
+		if(!/^\s*[+-]?((\d+(\.\d*)?)|(\.\d+))\s*$/.test(parts[i])) {
+			return ["range: bad number \"" + parts[i] + "\""];
+		}
+		// Count digits; the most precise number determines decimal places in output.
+		var frac = /\.\d+/.exec(parts[i]);
+		if(frac) {
+			fixed = Math.max(fixed,frac[0].length-1);
+		}
+		parts[i] = parseFloat(parts[i]);
+	}
+	switch(parts.length) {
+		case 1:
+			end = parts[0];
+			if (end >= 1) {
+				beg = 1;
+			}
+			else if (end <= -1) {
+				beg = -1;
+			}
+			else {
+				return [];
+			}
+			inc = 1;
+			break;
+		case 2:
+			beg = parts[0];
+			end = parts[1];
+			inc = 1;
+			break;
+		case 3:
+			beg = parts[0];
+			end = parts[1];
+			inc = Math.abs(parts[2]);
+			break;
+	}
+	if(inc === 0) {
+		return ["range: increment 0 causes infinite loop"];
+	}
+	// May need to count backwards
+	var direction = ((end < beg) ? -1 : 1);
+	inc *= direction;
+	// Estimate number of resulting elements
+	if((end - beg) / inc > 10000) {
+		return ["range: too many steps (over 10K)"];
+	}
+	// Avoid rounding error on last step
+	end += direction * 0.5 * Math.pow(0.1,fixed);
+	var safety = 10010;
+	// Enumerate the range
+	if (end<beg) {
+		for(i=beg; i>end; i+=inc) {
+			results.push(i.toFixed(fixed));
+			if(--safety<0) {
+				break;
+			}
+		}
+	} else {
+		for(i=beg; i<end; i+=inc) {
+			results.push(i.toFixed(fixed));
+			if(--safety<0) {
+				break;
+			}
+		}
+	}
+	if(safety<0) {
+		return ["range: unexpectedly large output"];
+	}
+	// Reverse?
+	if(operator.prefix === "!") {
+		results.reverse();
+	}
+	return results;
+};
+
+})();

core/modules/filters/removesuffix.js

@@ -18,7 +18,7 @@ Export our filter function
 exports.removesuffix = function(source,operator,options) {
 	var results = [];
 	source(function(tiddler,title) {
-		if(title.substr(-operator.operand.length) === operator.operand) {
+		if(title && title.substr(-operator.operand.length) === operator.operand) {
 			results.push(title.substr(0,title.length - operator.operand.length));
 		}
 	});

core/modules/filters/search.js

@@ -17,11 +17,34 @@ Export our filter function
 */
 exports.search = function(source,operator,options) {
 	var invert = operator.prefix === "!";
-	if(operator.suffix) {
+	if(operator.suffixes) {
+		var hasFlag = function(flag) {
+				return (operator.suffixes[1] || []).indexOf(flag) !== -1;
+			},
+			excludeFields = false,
+			fieldList = operator.suffixes[0] || [],
+			firstField = fieldList[0] || "", 
+			firstChar = firstField.charAt(0),
+			fields;
+		if(firstChar === "-") {
+			fields = [firstField.slice(1)].concat(fieldList.slice(1));
+			excludeFields = true;
+		} else if(fieldList[0] === "*"){
+			fields = [];
+			excludeFields = true;
+		} else {
+			fields = fieldList.slice(0);
+		}
 		return options.wiki.search(operator.operand,{
 			source: source,
 			invert: invert,
-			field: operator.suffix
+			field: fields,
+			excludeField: excludeFields,
+			caseSensitive: hasFlag("casesensitive"),
+			literal: hasFlag("literal"),
+			whitespace: hasFlag("whitespace"),
+			regexp: hasFlag("regexp"),
+			words: hasFlag("words")
 		});
 	} else {
 		return options.wiki.search(operator.operand,{

core/modules/filters/sort.js

@@ -27,6 +27,12 @@ exports.nsort = function(source,operator,options) {
 	return results;
 };
 
+exports.sortan = function(source, operator, options) {
+	var results = prepare_results(source);
+	options.wiki.sortTiddlers(results, operator.operand || "title", operator.prefix === "!",false,false,true);
+	return results;
+};
+
 exports.sortcs = function(source,operator,options) {
 	var results = prepare_results(source);
 	options.wiki.sortTiddlers(results,operator.operand || "title",operator.prefix === "!",true,false);

core/modules/filters/strings.js

@@ -0,0 +1,70 @@
+/*\
+title: $:/core/modules/filters/strings.js
+type: application/javascript
+module-type: filteroperator
+
+Filter operators for strings. Unary/binary operators work on each item in turn, and return a new item list.
+
+Sum/product/maxall/minall operate on the entire list, returning a single item.
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+exports.length = makeStringBinaryOperator(
+	function(a) {return ["" + ("" + a).length];}
+);
+
+exports.uppercase = makeStringBinaryOperator(
+	function(a) {return [("" + a).toUpperCase()];}
+);
+
+exports.lowercase = makeStringBinaryOperator(
+	function(a) {return [("" + a).toLowerCase()];}
+);
+
+exports.trim = makeStringBinaryOperator(
+	function(a) {return [$tw.utils.trim(a)];}
+);
+
+exports.concat = makeStringBinaryOperator(
+	function(a,b) {return ["" + a + b];}
+);
+
+exports.split = makeStringBinaryOperator(
+	function(a,b) {return ("" + a).split(b).filter(function(str) {return !!str;});}
+);
+
+exports.join = makeStringArrayOperator(
+	function(accumulator,value,operand) {
+		return "" + (accumulator ? accumulator + (operand || "") + value : value);
+	}
+);
+
+function makeStringBinaryOperator(fnCalc) {
+	return function(source,operator,options) {
+		var result = [];
+		source(function(tiddler,title) {
+			Array.prototype.push.apply(result,fnCalc(title,operator.operand || ""));
+		});
+		return result;
+	};
+}
+
+function makeStringArrayOperator(fnCalc,initialValue) {
+	initialValue = initialValue || "";
+	return function(source,operator,options) {
+		var result = [];
+		source(function(tiddler,title) {
+			result.push(title);
+		});
+		return [result.reduce(function(accumulator,currentValue) {
+			return fnCalc(accumulator,currentValue,operator.operand || "");
+		},initialValue)];
+	};
+}
+
+})();

core/modules/filters/subfilter.js

@@ -0,0 +1,33 @@
+/*\
+title: $:/core/modules/filters/subfilter.js
+type: application/javascript
+module-type: filteroperator
+
+Filter operator returning its operand evaluated as a filter
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+/*
+Export our filter function
+*/
+exports.subfilter = function(source,operator,options) {
+	var list = options.wiki.filterTiddlers(operator.operand,options.widget,source);
+	if(operator.prefix === "!") {
+		var results = [];
+		source(function(tiddler,title) {
+			if(list.indexOf(title) === -1) {
+				results.push(title);
+			}
+		});
+		return results;
+	} else {
+		return list;
+	}
+};
+
+})();

core/modules/filters/subtiddlerfields.js

@@ -0,0 +1,31 @@
+/*\
+title: $:/core/modules/filters/subtiddlerfields.js
+type: application/javascript
+module-type: filteroperator
+
+Filter operator for returning the names of the fields on the selected subtiddlers of the plugin named in the operand
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+/*
+Export our filter function
+*/
+exports.subtiddlerfields = function(source,operator,options) {
+	var results = [];
+	source(function(tiddler,title) {
+		var subtiddler = options.wiki.getSubTiddler(operator.operand,title);
+		if(subtiddler) {
+			for(var fieldName in subtiddler.fields) {
+				$tw.utils.pushTop(results,fieldName);
+			}
+		}
+	});
+	return results;
+};
+
+})();

core/modules/filters/tag.js

@@ -25,17 +25,18 @@ exports.tag = function(source,operator,options) {
 		});
 	} else {
 		// Old semantics:
+		var tiddlers = options.wiki.getTiddlersWithTag(operator.operand);
 		if(operator.prefix === "!") {
 			// Returns a copy of the input if operator.operand is missing
 			source(function(tiddler,title) {
-				if(tiddler && !tiddler.hasTag(operator.operand)) {
+				if(tiddlers.indexOf(title) === -1) {
 					results.push(title);
 				}
 			});
 		} else {
 			// Returns empty results if operator.operand is missing
 			source(function(tiddler,title) {
-				if(tiddler && tiddler.hasTag(operator.operand)) {
+				if(tiddlers.indexOf(title) !== -1) {
 					results.push(title);
 				}
 			});

core/modules/filters/x-listops.js

@@ -29,7 +29,7 @@ Extended filter operators to manipulate the current list.
     exports.putbefore = function (source, operator) {
         var results = prepare_results(source),
             index = results.indexOf(operator.operand),
-            count = parseInt(operator.suffix) || 1;
+            count = $tw.utils.getInt(operator.suffix,1);
         return (index === -1) ?
             results.slice(0, -1) :
             results.slice(0, index).concat(results.slice(-count)).concat(results.slice(index, -count));
@@ -41,7 +41,7 @@ Extended filter operators to manipulate the current list.
     exports.putafter = function (source, operator) {
         var results = prepare_results(source),
             index = results.indexOf(operator.operand),
-            count = parseInt(operator.suffix) || 1;
+            count = $tw.utils.getInt(operator.suffix,1);
         return (index === -1) ?
             results.slice(0, -1) :
             results.slice(0, index + 1).concat(results.slice(-count)).concat(results.slice(index + 1, -count));
@@ -53,7 +53,7 @@ Extended filter operators to manipulate the current list.
     exports.replace = function (source, operator) {
         var results = prepare_results(source),
             index = results.indexOf(operator.operand),
-            count = parseInt(operator.suffix) || 1;
+            count = $tw.utils.getInt(operator.suffix,1);
         return (index === -1) ?
             results.slice(0, -count) :
             results.slice(0, index).concat(results.slice(-count)).concat(results.slice(index + 1, -count));
@@ -64,7 +64,7 @@ Extended filter operators to manipulate the current list.
     */
     exports.putfirst = function (source, operator) {
         var results = prepare_results(source),
-            count = parseInt(operator.suffix) || 1;
+            count = $tw.utils.getInt(operator.suffix,1);
         return results.slice(-count).concat(results.slice(0, -count));
     };
 
@@ -73,7 +73,7 @@ Extended filter operators to manipulate the current list.
     */
     exports.putlast = function (source, operator) {
         var results = prepare_results(source),
-            count = parseInt(operator.suffix) || 1;
+            count = $tw.utils.getInt(operator.suffix,1);
         return results.slice(count).concat(results.slice(0, count));
     };
 
@@ -83,7 +83,7 @@ Extended filter operators to manipulate the current list.
     exports.move = function (source, operator) {
         var results = prepare_results(source),
             index = results.indexOf(operator.operand),
-            count = parseInt(operator.suffix) || 1,
+            count = $tw.utils.getInt(operator.suffix,1),
             marker = results.splice(index, 1),
             offset =  (index + count) > 0 ? index + count : 0;
         return results.slice(0, offset).concat(marker).concat(results.slice(offset));
@@ -129,7 +129,7 @@ Extended filter operators to manipulate the current list.
     exports.prepend = function (source, operator) {
         var prepend = $tw.utils.parseStringArray(operator.operand, "true"),
             results = prepare_results(source),
-            count = parseInt(operator.suffix) || prepend.length;
+            count = $tw.utils.getInt(operator.suffix,prepend.length);
         return (prepend.length === 0) ? results :
             (operator.prefix) ? prepend.slice(-count).concat(results) :
             prepend.slice(0, count).concat(results);

core/modules/info/platform.js

@@ -18,8 +18,8 @@ exports.getInfoTiddlerFields = function() {
 	// Basics
 	infoTiddlerFields.push({title: "$:/info/browser", text: mapBoolean(!!$tw.browser)});
 	infoTiddlerFields.push({title: "$:/info/node", text: mapBoolean(!!$tw.node)});
-	// Document location
 	if($tw.browser) {
+		// Document location
 		var setLocationProperty = function(name,value) {
 				infoTiddlerFields.push({title: "$:/info/url/" + name, text: value});			
 			},
@@ -32,6 +32,11 @@ exports.getInfoTiddlerFields = function() {
 		setLocationProperty("pathname", location.pathname);
 		setLocationProperty("search", location.search);
 		setLocationProperty("origin", location.origin);
+		// Screen size
+		infoTiddlerFields.push({title: "$:/info/browser/screen/width", text: window.screen.width.toString()});
+		infoTiddlerFields.push({title: "$:/info/browser/screen/height", text: window.screen.height.toString()});
+		// Language
+		infoTiddlerFields.push({title: "$:/info/browser/language", text: navigator.language || ""});
 	}
 	return infoTiddlerFields;
 };

core/modules/keyboard.js

@@ -138,6 +138,17 @@ function KeyboardManager(options) {
 	});
 	// Save the platform-specific name of the "meta" key
 	this.metaKeyName = $tw.platform.isMac ? "cmd-" : "win-";
+	this.shortcutKeysList = [], // Stores the shortcut-key descriptors
+	this.shortcutActionList = [], // Stores the corresponding action strings
+	this.shortcutParsedList = []; // Stores the parsed key descriptors
+	this.lookupNames = ["shortcuts"];
+	this.lookupNames.push($tw.platform.isMac ? "shortcuts-mac" : "shortcuts-not-mac")
+	this.lookupNames.push($tw.platform.isWindows ? "shortcuts-windows" : "shortcuts-not-windows");
+	this.lookupNames.push($tw.platform.isLinux ? "shortcuts-linux" : "shortcuts-not-linux");
+	this.updateShortcutLists(this.getShortcutTiddlerList());
+	$tw.wiki.addEventListener("change",function(changes) {
+		self.handleShortcutChanges(changes);
+	});
 }
 
 /*
@@ -229,10 +240,9 @@ KeyboardManager.prototype.parseKeyDescriptors = function(keyDescriptors,options)
 							result.push.apply(result,self.parseKeyDescriptors(keyDescriptors,options));
 						}
 					};
-				lookupName("shortcuts");
-				lookupName($tw.platform.isMac ? "shortcuts-mac" : "shortcuts-not-mac");
-				lookupName($tw.platform.isWindows ? "shortcuts-windows" : "shortcuts-not-windows");
-				lookupName($tw.platform.isLinux ? "shortcuts-linux" : "shortcuts-not-linux");
+				$tw.utils.each(self.lookupNames,function(platformDescriptor) {
+					lookupName(platformDescriptor);
+				});
 			}
 		} else {
 			result.push(self.parseKeyDescriptor(keyDescriptor));
@@ -274,6 +284,70 @@ KeyboardManager.prototype.checkKeyDescriptors = function(event,keyInfoArray) {
 	return false;
 };
 
+KeyboardManager.prototype.getShortcutTiddlerList = function() {
+	return $tw.wiki.getTiddlersWithTag("$:/tags/KeyboardShortcut");
+};
+
+KeyboardManager.prototype.updateShortcutLists = function(tiddlerList) {
+	this.shortcutTiddlers = tiddlerList;
+	for(var i=0; i<tiddlerList.length; i++) {
+		var title = tiddlerList[i],
+			tiddlerFields = $tw.wiki.getTiddler(title).fields;
+		this.shortcutKeysList[i] = tiddlerFields.key !== undefined ? tiddlerFields.key : undefined;
+		this.shortcutActionList[i] = tiddlerFields.text;
+		this.shortcutParsedList[i] = this.shortcutKeysList[i] !== undefined ? this.parseKeyDescriptors(this.shortcutKeysList[i]) : undefined;
+	}
+};
+
+KeyboardManager.prototype.handleKeydownEvent = function(event) {
+	var key, action;
+	for(var i=0; i<this.shortcutTiddlers.length; i++) {
+		if(this.shortcutParsedList[i] !== undefined && this.checkKeyDescriptors(event,this.shortcutParsedList[i])) {
+			key = this.shortcutParsedList[i];
+			action = this.shortcutActionList[i];
+		}
+	}
+	if(key !== undefined) {
+		event.preventDefault();
+		event.stopPropagation();
+		$tw.rootWidget.invokeActionString(action,$tw.rootWidget);
+		return true;
+	}
+	return false;
+};
+
+KeyboardManager.prototype.detectNewShortcuts = function(changedTiddlers) {
+	var shortcutConfigTiddlers = [],
+		handled = false;
+	$tw.utils.each(this.lookupNames,function(platformDescriptor) {
+		var descriptorString = "$:/config/" + platformDescriptor + "/";
+		Object.keys(changedTiddlers).forEach(function(configTiddler) {
+			var configString = configTiddler.substr(0, configTiddler.lastIndexOf("/") + 1);
+			if(configString === descriptorString) {
+				shortcutConfigTiddlers.push(configTiddler);
+				handled = true;
+			}
+		});
+	});
+	if(handled) {
+		return $tw.utils.hopArray(changedTiddlers,shortcutConfigTiddlers);
+	} else {
+		return false;
+	}
+};
+
+KeyboardManager.prototype.handleShortcutChanges = function(changedTiddlers) {
+	var newList = this.getShortcutTiddlerList();
+	var hasChanged = $tw.utils.hopArray(changedTiddlers,this.shortcutTiddlers) ? true :
+		($tw.utils.hopArray(changedTiddlers,newList) ? true :
+		(this.detectNewShortcuts(changedTiddlers))
+	);
+	// Re-cache shortcuts if something changed
+	if(hasChanged) {
+		this.updateShortcutLists(newList);
+	}
+};
+
 exports.KeyboardManager = KeyboardManager;
 
 })();

core/modules/macros/jsontiddlers.js

@@ -26,19 +26,7 @@ exports.params = [
 Run the macro
 */
 exports.run = function(filter) {
-	var tiddlers = this.wiki.filterTiddlers(filter),
-		data = [];
-	for(var t=0;t<tiddlers.length; t++) {
-		var tiddler = this.wiki.getTiddler(tiddlers[t]);
-		if(tiddler) {
-			var fields = new Object();
-			for(var field in tiddler.fields) {
-				fields[field] = tiddler.getFieldString(field);
-			}
-			data.push(fields);
-		}
-	}
-	return JSON.stringify(data,null,$tw.config.preferences.jsonSpaces);
+	return this.wiki.getTiddlersAsJson(filter);
 };
 
 })();

core/modules/macros/uniquetitle.js

@@ -0,0 +1,34 @@
+/*\
+title: $:/core/modules/macros/unusedtitle.js
+type: application/javascript
+module-type: macro
+Macro to return a new title that is unused in the wiki. It can be given a name as a base.
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+/*
+Information about this macro
+*/
+
+exports.name = "unusedtitle";
+
+exports.params = [
+	{name: "baseName"},
+	{name: "options"}
+];
+
+/*
+Run the macro
+*/
+exports.run = function(baseName, options) {
+	if(!baseName) {
+		baseName = $tw.language.getString("DefaultNewTiddlerTitle");
+	}
+	return this.wiki.generateNewTitle(baseName, options);
+};
+
+})();

core/modules/parsers/binaryparser.js

@@ -0,0 +1,29 @@
+/*\
+title: $:/core/modules/parsers/binaryparser.js
+type: application/javascript
+module-type: parser
+
+The video parser parses a video tiddler into an embeddable HTML element
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+var BINARY_WARNING_MESSAGE = "$:/core/ui/BinaryWarning";
+
+var BinaryParser = function(type,text,options) {
+	this.tree = [{
+		type: "transclude",
+		attributes: {
+			tiddler: {type: "string", value: BINARY_WARNING_MESSAGE}
+		}
+	}];
+};
+
+exports["application/octet-stream"] = BinaryParser;
+
+})();
+

core/modules/parsers/imageparser.js

@@ -17,8 +17,7 @@ var ImageParser = function(type,text,options) {
 			type: "element",
 			tag: "img",
 			attributes: {}
-		},
-		src;
+		};
 	if(options._canonical_uri) {
 		element.attributes.src = {type: "string", value: options._canonical_uri};
 	} else if(text) {
@@ -36,6 +35,9 @@ exports["image/jpg"] = ImageParser;
 exports["image/jpeg"] = ImageParser;
 exports["image/png"] = ImageParser;
 exports["image/gif"] = ImageParser;
+exports["image/webp"] = ImageParser;
+exports["image/heic"] = ImageParser;
+exports["image/heif"] = ImageParser;
 exports["image/x-icon"] = ImageParser;
 
 })();

core/modules/parsers/wikiparser/macros/prettylink.tid

@@ -0,0 +1,13 @@
+title: $:/core/macros/shortcuts/prettylink
+tags: $:/tags/Macro
+
+\define x-tm-prettylink-internal(to,text)
+<$link to=<<__to__>>><$text text=<<__text__>>/></$link>
+\end
+
+\define tm-prettylink-internal(to,text)
+<$button>
+<$action-navigate $to=<<__to__>>/>
+<$text text=<<__text__>>/>
+</$button>
+\end

core/modules/parsers/wikiparser/rules/html.js

@@ -97,6 +97,9 @@ exports.parseTag = function(source,pos,options) {
 		return null;
 	}
 	node.tag = token.match[1];
+	if(node.tag.slice(1).indexOf("$") !== -1) {
+		return null;
+	}
 	if(node.tag.charAt(0) === "$") {
 		node.type = node.tag.substr(1);
 	}

core/modules/parsers/wikiparser/rules/import.js

@@ -0,0 +1,53 @@
+/*\
+title: $:/core/modules/parsers/wikiparser/rules/import.js
+type: application/javascript
+module-type: wikirule
+
+Wiki pragma rule for importing variable definitions
+
+```
+\import [[$:/core/ui/PageMacros]] [all[shadows+tiddlers]tag[$:/tags/Macro]!has[draft.of]]
+```
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+exports.name = "import";
+exports.types = {pragma: true};
+
+/*
+Instantiate parse rule
+*/
+exports.init = function(parser) {
+	this.parser = parser;
+	// Regexp to match
+	this.matchRegExp = /^\\import[^\S\n]/mg;
+};
+
+/*
+Parse the most recent match
+*/
+exports.parse = function() {
+	var self = this;
+	// Move past the pragma invocation
+	this.parser.pos = this.matchRegExp.lastIndex;
+	// Parse the filter terminated by a line break
+	var reMatch = /(.*)(\r?\n)|$/mg;
+	reMatch.lastIndex = this.parser.pos;
+	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]}
+		},
+		children: []
+	}];
+};
+
+})();

core/modules/parsers/wikiparser/rules/macrodef.js

@@ -84,7 +84,8 @@ exports.parse = function() {
 			value: {type: "string", value: text}
 		},
 		children: [],
-		params: params
+		params: params,
+		isMacroDefinition: true
 	}];
 };
 

core/modules/parsers/wikiparser/rules/prettylink.js

@@ -49,13 +49,12 @@ exports.parse = function() {
 		}];
 	} else {
 		return [{
-			type: "link",
-			attributes: {
-				to: {type: "string", value: link}
-			},
-			children: [{
-				type: "text", text: text
-			}]
+			type: "macrocall",
+			name: "tm-prettylink-internal",
+			params: [
+				{name: "to", value: link},
+				{name: "text", value: text}
+			]
 		}];
 	}
 };

core/modules/saver-handler.js

@@ -21,6 +21,7 @@ function SaverHandler(options) {
 	var self = this;
 	this.wiki = options.wiki;
 	this.dirtyTracking = options.dirtyTracking;
+	this.preloadDirty = options.preloadDirty || [];
 	this.pendingAutoSave = false;
 	// Make a logger
 	this.logger = new $tw.utils.Logger("saver-handler");
@@ -33,7 +34,13 @@ function SaverHandler(options) {
 		// Compile the dirty tiddler filter
 		this.filterFn = this.wiki.compileFilter(this.wiki.getTiddlerText(this.titleSyncFilter));
 		// Count of changes that have not yet been saved
-		this.numChanges = 0;
+		var filteredChanges = self.filterFn.call(self.wiki,function(iterator) {
+				$tw.utils.each(self.preloadDirty,function(title) {
+					var tiddler = self.wiki.getTiddler(title);
+					iterator(tiddler,title);
+				});
+		});
+		this.numChanges = filteredChanges.length;
 		// Listen out for changes to tiddlers
 		this.wiki.addEventListener("change",function(changes) {
 			// Filter the changes so that we only count changes to tiddlers that we care about
@@ -144,8 +151,12 @@ Save the wiki contents. Options are:
 SaverHandler.prototype.saveWiki = function(options) {
 	options = options || {};
 	var self = this,
-		method = options.method || "save",
-		variables = options.variables || {},
+		method = options.method || "save";
+	// Ignore autosave if disabled
+	if(method === "autosave" && this.wiki.getTiddlerText(this.titleAutoSave,"yes") !== "yes") {
+		return false;
+	}
+	var	variables = options.variables || {},
 		template = options.template || "$:/core/save/all",
 		downloadType = options.downloadType || "text/plain",
 		text = this.wiki.renderTiddler(downloadType,template,options),
@@ -164,10 +175,6 @@ SaverHandler.prototype.saveWiki = function(options) {
 				}
 			}
 		};
-	// Ignore autosave if disabled
-	if(method === "autosave" && this.wiki.getTiddlerText(this.titleAutoSave,"yes") !== "yes") {
-		return false;
-	}
 	// Call the highest priority saver that supports this method
 	for(var t=this.savers.length-1; t>=0; t--) {
 		var saver = this.savers[t];

core/modules/savers/beaker.js

@@ -51,7 +51,7 @@ BeakerSaver.prototype.info = {
 Static method that returns true if this saver is capable of working
 */
 exports.canSave = function(wiki) {
-	return !!window.DatArchive;
+	return !!window.DatArchive && location.protocol==="dat:";
 };
 
 /*

core/modules/savers/put.js

@@ -15,6 +15,31 @@ to the current URL, such as a WebDAV server.
 /*global $tw: false */
 "use strict";
 
+/*
+Retrieve ETag if available
+*/
+var retrieveETag = function(self) {
+	var headers = {
+		Accept: "*/*;charset=UTF-8"
+	};
+	$tw.utils.httpRequest({
+		url: self.uri(),
+		type: "HEAD",
+		headers: headers,
+		callback: function(err,data,xhr) {
+			if(err) {
+				return;
+			}
+			var etag = xhr.getResponseHeader("ETag");
+			if(!etag) {
+				return;
+			}
+			self.etag = etag.replace(/^W\//,"");
+		}
+	});
+};
+
+
 /*
 Select the appropriate saver module and set it up
 */
@@ -27,23 +52,14 @@ var PutSaver = function(wiki) {
 	$tw.utils.httpRequest({
 		url: uri,
 		type: "OPTIONS",
-		callback: function(err, data, xhr) {
+		callback: function(err,data,xhr) {
 			// Check DAV header http://www.webdav.org/specs/rfc2518.html#rfc.section.9.1
 			if(!err) {
 				self.serverAcceptsPuts = xhr.status === 200 && !!xhr.getResponseHeader("dav");
 			}
 		}
 	});
-	// Retrieve ETag if available
-	$tw.utils.httpRequest({
-		url: uri,
-		type: "HEAD",
-		callback: function(err, data, xhr) {
-			if(!err) {
-				self.etag = xhr.getResponseHeader("ETag");
-			}
-		}
-	});
+	retrieveETag(this);
 };
 
 PutSaver.prototype.uri = function() {
@@ -53,12 +69,14 @@ PutSaver.prototype.uri = function() {
 // TODO: in case of edit conflict
 // Prompt: Do you want to save over this? Y/N
 // Merging would be ideal, and may be possible using future generic merge flow
-PutSaver.prototype.save = function(text, method, callback) {
+PutSaver.prototype.save = function(text,method,callback) {
 	if(!this.serverAcceptsPuts) {
 		return false;
 	}
 	var self = this;
-	var headers = { "Content-Type": "text/html;charset=UTF-8" };
+	var headers = {
+		"Content-Type": "text/html;charset=UTF-8"
+	};
 	if(this.etag) {
 		headers["If-Match"] = this.etag;
 	}
@@ -67,17 +85,22 @@ PutSaver.prototype.save = function(text, method, callback) {
 		type: "PUT",
 		headers: headers,
 		data: text,
-		callback: function(err, data, xhr) {
+		callback: function(err,data,xhr) {
 			if(err) {
-				callback(err);
-			} if(xhr.status === 200 || xhr.status === 201) {
-				self.etag = xhr.getResponseHeader("ETag");
-				callback(null); // success
-			} else if(xhr.status === 412) { // edit conflict
-				var message = $tw.language.getString("Error/EditConflict");
-				callback(message);
+				// response is textual: "XMLHttpRequest error code: 412"
+				var status = Number(err.substring(err.indexOf(':') + 2, err.length))
+				if(status === 412) { // edit conflict
+					var message = $tw.language.getString("Error/EditConflict");
+					callback(message);
+				} else {
+					callback(err); // fail
+				}
 			} else {
-				callback(xhr.responseText); // fail
+				self.etag = xhr.getResponseHeader("ETag");
+				if(self.etag == null) {
+					retrieveETag(self);
+				}
+				callback(null); // success
 			}
 		}
 	});
@@ -90,7 +113,7 @@ Information about this saver
 PutSaver.prototype.info = {
 	name: "put",
 	priority: 2000,
-	capabilities: ["save", "autosave"]
+	capabilities: ["save","autosave"]
 };
 
 /*

core/modules/server/authenticators/basic.js

@@ -0,0 +1,94 @@
+/*\
+title: $:/core/modules/server/authenticators/basic.js
+type: application/javascript
+module-type: authenticator
+
+Authenticator for WWW basic authentication
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+if($tw.node) {
+	var util = require("util"),
+		fs = require("fs"),
+		url = require("url"),
+		path = require("path");
+}
+
+function BasicAuthenticator(server) {
+	this.server = server;
+	this.credentialsData = [];
+}
+
+/*
+Returns true if the authenticator is active, false if it is inactive, or a string if there is an error
+*/
+BasicAuthenticator.prototype.init = function() {
+	// Read the credentials data
+	this.credentialsFilepath = this.server.get("credentials");
+	if(this.credentialsFilepath) {
+		var resolveCredentialsFilepath = path.resolve($tw.boot.wikiPath,this.credentialsFilepath);
+		if(fs.existsSync(resolveCredentialsFilepath) && !fs.statSync(resolveCredentialsFilepath).isDirectory()) {
+			var credentialsText = fs.readFileSync(resolveCredentialsFilepath,"utf8"),
+				credentialsData = $tw.utils.parseCsvStringWithHeader(credentialsText);
+			if(typeof credentialsData === "string") {
+				return "Error: " + credentialsData + " reading credentials from '" + resolveCredentialsFilepath + "'";
+			} else {
+				this.credentialsData = credentialsData;
+			}
+		} else {
+			return "Error: Unable to load user credentials from '" + credentialsFilepath + "'";
+		}
+	}
+	// Add the hardcoded username and password if specified
+	if(this.server.get("username") && this.server.get("password")) {
+		this.credentialsData = this.credentialsData || [];
+		this.credentialsData.push({
+			username: this.server.get("username"),
+			password: this.server.get("password")
+		});
+	}
+	return this.credentialsData.length > 0;
+};
+
+/*
+Returns true if the request is authenticated and assigns the "authenticatedUsername" state variable.
+Returns false if the request couldn't be authenticated having sent an appropriate response to the browser
+*/
+BasicAuthenticator.prototype.authenticateRequest = function(request,response,state) {
+	// Extract the incoming username and password from the request
+	var header = request.headers.authorization || "";
+	if(!header && state.allowAnon) {
+		// If there's no header and anonymous access is allowed then we don't set authenticatedUsername
+		return true;
+	}
+	var token = header.split(/\s+/).pop() || "",
+		auth = $tw.utils.base64Decode(token),
+		parts = auth.split(/:/),
+		incomingUsername = parts[0],
+		incomingPassword = parts[1];
+	// Check that at least one of the credentials matches
+	var matchingCredentials = this.credentialsData.find(function(credential) {
+		return credential.username === incomingUsername && credential.password === incomingPassword;
+	});
+	if(matchingCredentials) {
+		// If so, add the authenticated username to the request state
+		state.authenticatedUsername = incomingUsername;
+		return true;
+	} else {
+		// If not, return an authentication challenge
+		response.writeHead(401,"Authentication required",{
+			"WWW-Authenticate": 'Basic realm="Please provide your username and password to login to ' + state.server.servername + '"'
+		});
+		response.end();
+		return false;
+	}
+};
+
+exports.AuthenticatorClass = BasicAuthenticator;
+
+})();

core/modules/server/authenticators/header.js

@@ -0,0 +1,47 @@
+/*\
+title: $:/core/modules/server/authenticators/header.js
+type: application/javascript
+module-type: authenticator
+
+Authenticator for trusted header authentication
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+function HeaderAuthenticator(server) {
+	this.server = server;
+	this.header = server.get("authenticated-user-header");
+}
+
+/*
+Returns true if the authenticator is active, false if it is inactive, or a string if there is an error
+*/
+HeaderAuthenticator.prototype.init = function() {
+	return !!this.header;
+};
+
+/*
+Returns true if the request is authenticated and assigns the "authenticatedUsername" state variable.
+Returns false if the request couldn't be authenticated having sent an appropriate response to the browser
+*/
+HeaderAuthenticator.prototype.authenticateRequest = function(request,response,state) {
+	// Otherwise, authenticate as the username in the specified header
+	var username = request.headers[this.header];
+	if(!username && !state.allowAnon) {
+		response.writeHead(401,"Authorization header required to login to '" + state.server.servername + "'");
+		response.end();
+		return false;
+	} else {
+		// authenticatedUsername will be undefined for anonymous users
+		state.authenticatedUsername = username;
+		return true;
+	}
+};
+
+exports.AuthenticatorClass = HeaderAuthenticator;
+
+})();

core/modules/server/routes/delete-tiddler.js

@@ -0,0 +1,28 @@
+/*\
+title: $:/core/modules/server/routes/delete-tiddler.js
+type: application/javascript
+module-type: route
+
+DELETE /recipes/default/tiddlers/:title
+
+\*/
+(function() {
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+exports.method = "DELETE";
+
+exports.path = /^\/bags\/default\/tiddlers\/(.+)$/;
+
+exports.handler = function(request,response,state) {
+	var title = decodeURIComponent(state.params[0]);
+	state.wiki.deleteTiddler(title);
+	response.writeHead(204, "OK", {
+		"Content-Type": "text/plain"
+	});
+	response.end();
+};
+
+}());

core/modules/server/routes/get-favicon.js

@@ -0,0 +1,25 @@
+/*\
+title: $:/core/modules/server/routes/get-favicon.js
+type: application/javascript
+module-type: route
+
+GET /favicon.ico
+
+\*/
+(function() {
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+exports.method = "GET";
+
+exports.path = /^\/favicon.ico$/;
+
+exports.handler = function(request,response,state) {
+	response.writeHead(200, {"Content-Type": "image/x-icon"});
+	var buffer = state.wiki.getTiddlerText("$:/favicon.ico","");
+	response.end(buffer,"base64");
+};
+
+}());

core/modules/server/routes/get-file.js

@@ -0,0 +1,50 @@
+/*\
+title: $:/core/modules/server/routes/get-file.js
+type: application/javascript
+module-type: route
+
+GET /files/:filepath
+
+\*/
+(function() {
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+exports.method = "GET";
+
+exports.path = /^\/files\/(.+)$/;
+
+exports.handler = function(request,response,state) {
+	var path = require("path"),
+		fs = require("fs"),
+		util = require("util");
+	var filename = path.resolve($tw.boot.wikiPath,"files",decodeURIComponent(state.params[0])),
+		extension = path.extname(filename);
+	fs.readFile(filename,function(err,content) {
+		var status,content,type = "text/plain";
+		if(err) {
+			if(err.code === "ENOENT") {
+				status = 404;
+				content = "File '" + filename + "' not found";
+			} else if(err.code === "EACCES") {
+				status = 403;
+				content = "You do not have permission to access the file '" + filename + "'";
+			} else {
+				status = 500;
+				content = err.toString();
+			}
+		} else {
+			status = 200;
+			content = content;
+			type = ($tw.config.fileExtensionInfo[extension] ? $tw.config.fileExtensionInfo[extension].type : "application/octet-stream");
+		}
+		response.writeHead(status,{
+			"Content-Type": type
+		});
+		response.end(content);
+	});
+};
+
+}());

core/modules/server/routes/get-index.js

@@ -0,0 +1,51 @@
+/*\
+title: $:/core/modules/server/routes/get-index.js
+type: application/javascript
+module-type: route
+
+GET /
+
+\*/
+(function() {
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+var zlib = require('zlib');
+
+exports.method = "GET";
+
+exports.path = /^\/$/;
+
+exports.handler = function(request,response,state) {
+	var acceptEncoding = request.headers['accept-encoding'];
+	if (!acceptEncoding) { acceptEncoding = ''; }
+
+	var text = state.wiki.renderTiddler(state.server.get("root-render-type"),state.server.get("root-tiddler"));
+
+	var responseHeaders = {
+		"Content-Type": state.server.get("root-serve-type")
+	};
+
+	/*
+	If the gzip=yes flag for `listen` is set, check if the user agent permits
+	compression. If so, compress our response. Note that we use the synchronous
+	functions from zlib to stay in the imperative style. The current `Server`
+	doesn't depend on this, and we may just as well use the async versions.
+	*/
+	if(state.server.enableGzip) {
+		if (/\bdeflate\b/.test(acceptEncoding)) {
+			responseHeaders['Content-Encoding'] = 'deflate';
+			text = zlib.deflateSync(text);
+		} else if (/\bgzip\b/.test(acceptEncoding)) {
+			responseHeaders['Content-Encoding'] = 'gzip';
+			text = zlib.gzipSync(text);
+		}
+	}
+
+	response.writeHead(200, responseHeaders);
+	response.end(text);
+};
+
+}());

core/modules/server/routes/get-login-basic.js

@@ -0,0 +1,35 @@
+/*\
+title: $:/core/modules/server/routes/get-login-basic.js
+type: application/javascript
+module-type: route
+
+GET /login-basic -- force a Basic Authentication challenge
+
+\*/
+(function() {
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+exports.method = "GET";
+
+exports.path = /^\/login-basic$/;
+
+exports.handler = function(request,response,state) {
+	if(!state.authenticatedUsername) {
+		// Challenge if there's no username
+		response.writeHead(401,{
+			"WWW-Authenticate": 'Basic realm="Please provide your username and password to login to ' + state.server.servername + '"'
+		});
+		response.end();		
+	} else {
+		// Redirect to the root wiki if login worked
+		response.writeHead(302,{
+			Location: "/"
+		});
+		response.end();
+	}
+};
+
+}());

core/modules/server/routes/get-status.js

@@ -0,0 +1,33 @@
+/*\
+title: $:/core/modules/server/routes/get-status.js
+type: application/javascript
+module-type: route
+
+GET /status
+
+\*/
+(function() {
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+exports.method = "GET";
+
+exports.path = /^\/status$/;
+
+exports.handler = function(request,response,state) {
+	response.writeHead(200, {"Content-Type": "application/json"});
+	var text = JSON.stringify({
+		username: state.authenticatedUsername || state.server.get("anon-username") || "",
+		anonymous: !state.authenticatedUsername,
+		read_only: !state.server.isAuthorized("writers",state.authenticatedUsername),
+		space: {
+			recipe: "default"
+		},
+		tiddlywiki_version: $tw.version
+	});
+	response.end(text,"utf8");
+};
+
+}());

core/modules/server/routes/get-tiddler-html.js

@@ -0,0 +1,44 @@
+/*\
+title: $:/core/modules/server/routes/get-tiddler-html.js
+type: application/javascript
+module-type: route
+
+GET /:title
+
+\*/
+(function() {
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+exports.method = "GET";
+
+exports.path = /^\/([^\/]+)$/;
+
+exports.handler = function(request,response,state) {
+	var title = decodeURIComponent(state.params[0]),
+		tiddler = state.wiki.getTiddler(title);
+	if(tiddler) {
+		var renderType = tiddler.getFieldString("_render_type"),
+			renderTemplate = tiddler.getFieldString("_render_template");
+		// Tiddler fields '_render_type' and '_render_template' overwrite
+		// system wide settings for render type and template
+		if(state.wiki.isSystemTiddler(title)) {
+			renderType = renderType || state.server.get("system-tiddler-render-type");
+			renderTemplate = renderTemplate || state.server.get("system-tiddler-render-template");
+		} else {
+			renderType = renderType || state.server.get("tiddler-render-type");
+			renderTemplate = renderTemplate || state.server.get("tiddler-render-template");
+		}
+		var text = state.wiki.renderTiddler(renderType,renderTemplate,{parseAsInline: true, variables: {currentTiddler: title}});
+		// Naughty not to set a content-type, but it's the easiest way to ensure the browser will see HTML pages as HTML, and accept plain text tiddlers as CSS or JS
+		response.writeHead(200);
+		response.end(text,"utf8");
+	} else {
+		response.writeHead(404);
+		response.end();
+	}
+};
+
+}());

core/modules/server/routes/get-tiddler.js

@@ -0,0 +1,46 @@
+/*\
+title: $:/core/modules/server/routes/get-tiddler.js
+type: application/javascript
+module-type: route
+
+GET /recipes/default/tiddlers/:title
+
+\*/
+(function() {
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+exports.method = "GET";
+
+exports.path = /^\/recipes\/default\/tiddlers\/(.+)$/;
+
+exports.handler = function(request,response,state) {
+	var title = decodeURIComponent(state.params[0]),
+		tiddler = state.wiki.getTiddler(title),
+		tiddlerFields = {},
+		knownFields = [
+			"bag", "created", "creator", "modified", "modifier", "permissions", "recipe", "revision", "tags", "text", "title", "type", "uri"
+		];
+	if(tiddler) {
+		$tw.utils.each(tiddler.fields,function(field,name) {
+			var value = tiddler.getFieldString(name);
+			if(knownFields.indexOf(name) !== -1) {
+				tiddlerFields[name] = value;
+			} else {
+				tiddlerFields.fields = tiddlerFields.fields || {};
+				tiddlerFields.fields[name] = value;
+			}
+		});
+		tiddlerFields.revision = state.wiki.getChangeCount(title);
+		tiddlerFields.type = tiddlerFields.type || "text/vnd.tiddlywiki";
+		response.writeHead(200, {"Content-Type": "application/json"});
+		response.end(JSON.stringify(tiddlerFields),"utf8");
+	} else {
+		response.writeHead(404);
+		response.end();
+	}
+};
+
+}());

core/modules/server/routes/get-tiddlers-json.js

@@ -0,0 +1,37 @@
+/*\
+title: $:/core/modules/server/routes/get-tiddlers-json.js
+type: application/javascript
+module-type: route
+
+GET /recipes/default/tiddlers/tiddlers.json
+
+\*/
+(function() {
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+exports.method = "GET";
+
+exports.path = /^\/recipes\/default\/tiddlers.json$/;
+
+exports.handler = function(request,response,state) {
+	response.writeHead(200, {"Content-Type": "application/json"});
+	var tiddlers = [];
+	state.wiki.forEachTiddler({sortField: "title"},function(title,tiddler) {
+		var tiddlerFields = {};
+		$tw.utils.each(tiddler.fields,function(field,name) {
+			if(name !== "text") {
+				tiddlerFields[name] = tiddler.getFieldString(name);
+			}
+		});
+		tiddlerFields.revision = state.wiki.getChangeCount(title);
+		tiddlerFields.type = tiddlerFields.type || "text/vnd.tiddlywiki";
+		tiddlers.push(tiddlerFields);
+	});
+	var text = JSON.stringify(tiddlers);
+	response.end(text,"utf8");
+};
+
+}());

core/modules/server/routes/put-tiddler.js

@@ -0,0 +1,42 @@
+/*\
+title: $:/core/modules/server/routes/put-tiddler.js
+type: application/javascript
+module-type: route
+
+PUT /recipes/default/tiddlers/:title
+
+\*/
+(function() {
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+exports.method = "PUT";
+
+exports.path = /^\/recipes\/default\/tiddlers\/(.+)$/;
+
+exports.handler = function(request,response,state) {
+	var title = decodeURIComponent(state.params[0]),
+	fields = JSON.parse(state.data);
+	// Pull up any subfields in the `fields` object
+	if(fields.fields) {
+		$tw.utils.each(fields.fields,function(field,name) {
+			fields[name] = field;
+		});
+		delete fields.fields;
+	}
+	// Remove any revision field
+	if(fields.revision) {
+		delete fields.revision;
+	}
+	state.wiki.addTiddler(new $tw.Tiddler(state.wiki.getCreationFields(),fields,{title: title},state.wiki.getModificationFields()));
+	var changeCount = state.wiki.getChangeCount(title).toString();
+	response.writeHead(204, "OK",{
+		Etag: "\"default/" + encodeURIComponent(title) + "/" + changeCount + ":\"",
+		"Content-Type": "text/plain"
+	});
+	response.end();
+};
+
+}());

core/modules/server/server.js

@@ -0,0 +1,265 @@
+/*\
+title: $:/core/modules/server/server.js
+type: application/javascript
+module-type: library
+
+Serve tiddlers over http
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+if($tw.node) {
+	var util = require("util"),
+		fs = require("fs"),
+		url = require("url"),
+		path = require("path");
+}
+
+/*
+A simple HTTP server with regexp-based routes
+options: variables - optional hashmap of variables to set (a misnomer - they are really constant parameters)
+		 routes - optional array of routes to use
+		 wiki - reference to wiki object
+*/
+function Server(options) {
+	var self = this;
+	this.routes = options.routes || [];
+	this.authenticators = options.authenticators || [];
+	this.wiki = options.wiki;
+	this.servername = $tw.utils.transliterateToSafeASCII(this.wiki.getTiddlerText("$:/SiteTitle") || "TiddlyWiki5");
+	// Initialise the variables
+	this.variables = $tw.utils.extend({},this.defaultVariables);
+	if(options.variables) {
+		for(var variable in options.variables) {
+			if(options.variables[variable]) {
+				this.variables[variable] = options.variables[variable];
+			}
+		}		
+	}
+	$tw.utils.extend({},this.defaultVariables,options.variables);
+	// Initialise CSRF
+	this.csrfDisable = this.get("csrf-disable") === "yes";
+	// Initialize Gzip compression
+	this.enableGzip = this.get("gzip") === "yes";
+	// Initialise authorization
+	var authorizedUserName = (this.get("username") && this.get("password")) ? this.get("username") : "(anon)";
+	this.authorizationPrincipals = {
+		readers: (this.get("readers") || authorizedUserName).split(",").map($tw.utils.trim),
+		writers: (this.get("writers") || authorizedUserName).split(",").map($tw.utils.trim)
+	}
+	// Load and initialise authenticators
+	$tw.modules.forEachModuleOfType("authenticator", function(title,authenticatorDefinition) {
+		// console.log("Loading server route " + title);
+		self.addAuthenticator(authenticatorDefinition.AuthenticatorClass);
+	});
+	// Load route handlers
+	$tw.modules.forEachModuleOfType("route", function(title,routeDefinition) {
+		// console.log("Loading server route " + title);
+		self.addRoute(routeDefinition);
+	});
+	// Initialise the http vs https
+	this.listenOptions = null;
+	this.protocol = "http";
+	var tlsKeyFilepath = this.get("tls-key"),
+		tlsCertFilepath = this.get("tls-cert");
+	if(tlsCertFilepath && tlsKeyFilepath) {
+		this.listenOptions = {
+			key: fs.readFileSync(path.resolve($tw.boot.wikiPath,tlsKeyFilepath),"utf8"),
+			cert: fs.readFileSync(path.resolve($tw.boot.wikiPath,tlsCertFilepath),"utf8")
+		};
+		this.protocol = "https";
+	}
+	this.transport = require(this.protocol);
+}
+
+Server.prototype.defaultVariables = {
+	port: "8080",
+	host: "127.0.0.1",
+	"root-tiddler": "$:/core/save/all",
+	"root-render-type": "text/plain",
+	"root-serve-type": "text/html",
+	"tiddler-render-type": "text/html",
+	"tiddler-render-template": "$:/core/templates/server/static.tiddler.html",
+	"system-tiddler-render-type": "text/plain",
+	"system-tiddler-render-template": "$:/core/templates/wikified-tiddler",
+	"debug-level": "none",
+	"gzip": "no"
+};
+
+Server.prototype.get = function(name) {
+	return this.variables[name];
+};
+
+Server.prototype.addRoute = function(route) {
+	this.routes.push(route);
+};
+
+Server.prototype.addAuthenticator = function(AuthenticatorClass) {
+	// Instantiate and initialise the authenticator
+	var authenticator = new AuthenticatorClass(this),
+		result = authenticator.init();
+	if(typeof result === "string") {
+		$tw.utils.error("Error: " + result);
+	} else if(result) {
+		// Only use the authenticator if it initialised successfully
+		this.authenticators.push(authenticator);
+	}
+};
+
+Server.prototype.findMatchingRoute = function(request,state) {
+	var pathprefix = this.get("path-prefix") || "";
+	for(var t=0; t<this.routes.length; t++) {
+		var potentialRoute = this.routes[t],
+			pathRegExp = potentialRoute.path,
+			pathname = state.urlInfo.pathname,
+			match;
+		if(pathprefix) {
+			if(pathname.substr(0,pathprefix.length) === pathprefix) {
+				pathname = pathname.substr(pathprefix.length) || "/";
+				match = potentialRoute.path.exec(pathname);
+			} else {
+				match = false;
+			}
+		} else {
+			match = potentialRoute.path.exec(pathname);
+		}
+		if(match && request.method === potentialRoute.method) {
+			state.params = [];
+			for(var p=1; p<match.length; p++) {
+				state.params.push(match[p]);
+			}
+			return potentialRoute;
+		}
+	}
+	return null;
+};
+
+Server.prototype.methodMappings = {
+	"GET": "readers",
+	"OPTIONS": "readers",
+	"HEAD": "readers",
+	"PUT": "writers",
+	"POST": "writers",
+	"DELETE": "writers"
+};
+
+/*
+Check whether a given user is authorized for the specified authorizationType ("readers" or "writers"). Pass null or undefined as the username to check for anonymous access
+*/
+Server.prototype.isAuthorized = function(authorizationType,username) {
+	var principals = this.authorizationPrincipals[authorizationType] || [];
+	return principals.indexOf("(anon)") !== -1 || (username && (principals.indexOf("(authenticated)") !== -1 || principals.indexOf(username) !== -1));
+}
+
+Server.prototype.requestHandler = function(request,response) {
+	// Compose the state object
+	var self = this;
+	var state = {};
+	state.wiki = self.wiki;
+	state.server = self;
+	state.urlInfo = url.parse(request.url);
+	// Get the principals authorized to access this resource
+	var authorizationType = this.methodMappings[request.method] || "readers";
+	// Check for the CSRF header if this is a write
+	if(!this.csrfDisable && authorizationType === "writers" && request.headers["x-requested-with"] !== "TiddlyWiki") {
+		response.writeHead(403,"'X-Requested-With' header required to login to '" + this.servername + "'");
+		response.end();
+		return;		
+	}
+	// Check whether anonymous access is granted
+	state.allowAnon = this.isAuthorized(authorizationType,null);
+	// Authenticate with the first active authenticator
+	if(this.authenticators.length > 0) {
+		if(!this.authenticators[0].authenticateRequest(request,response,state)) {
+			// Bail if we failed (the authenticator will have sent the response)
+			return;
+		}		
+	}
+	// Authorize with the authenticated username
+	if(!this.isAuthorized(authorizationType,state.authenticatedUsername)) {
+		response.writeHead(401,"'" + state.authenticatedUsername + "' is not authorized to access '" + this.servername + "'");
+		response.end();
+		return;
+	}
+	// Find the route that matches this path
+	var route = self.findMatchingRoute(request,state);
+	// Optionally output debug info
+	if(self.get("debug-level") !== "none") {
+		console.log("Request path:",JSON.stringify(state.urlInfo));
+		console.log("Request headers:",JSON.stringify(request.headers));
+		console.log("authenticatedUsername:",state.authenticatedUsername);
+	}
+	// Return a 404 if we didn't find a route
+	if(!route) {
+		response.writeHead(404);
+		response.end();
+		return;
+	}
+	// Receive the request body if necessary and hand off to the route handler
+	if(route.bodyFormat === "stream" || request.method === "GET" || request.method === "HEAD") {
+		// Let the route handle the request stream itself
+		route.handler(request,response,state);
+	} else if(route.bodyFormat === "string" || !route.bodyFormat) {
+		// Set the encoding for the incoming request
+		request.setEncoding("utf8");
+		var data = "";
+		request.on("data",function(chunk) {
+			data += chunk.toString();
+		});
+		request.on("end",function() {
+			state.data = data;
+			route.handler(request,response,state);
+		});
+	} else if(route.bodyFormat === "buffer") {
+		var data = [];
+		request.on("data",function(chunk) {
+			data.push(chunk);
+		});
+		request.on("end",function() {
+			state.data = Buffer.concat(data);
+			route.handler(request,response,state);
+		})
+	} else {
+		response.writeHead(400,"Invalid bodyFormat " + route.bodyFormat + " in route " + route.method + " " + route.path.source);
+		response.end();
+	}
+};
+
+/*
+Listen for requests
+port: optional port number (falls back to value of "port" variable)
+host: optional host address (falls back to value of "host" variable)
+prefix: optional prefix (falls back to value of "path-prefix" variable)
+*/
+Server.prototype.listen = function(port,host,prefix) {
+	// Handle defaults for port and host
+	port = port || this.get("port");
+	host = host || this.get("host");
+	prefix = prefix || this.get("path-prefix") || "";
+	// Check for the port being a string and look it up as an environment variable
+	if(parseInt(port,10).toString() !== port) {
+		port = process.env[port] || 8080;
+	}
+	$tw.utils.log("Serving on " + this.protocol + "://" + host + ":" + port + prefix,"brown/orange");
+	$tw.utils.log("(press ctrl-C to exit)","red");
+	// Warn if required plugins are missing
+	if(!$tw.wiki.getTiddler("$:/plugins/tiddlywiki/tiddlyweb") || !$tw.wiki.getTiddler("$:/plugins/tiddlywiki/filesystem")) {
+		$tw.utils.warning("Warning: Plugins required for client-server operation (\"tiddlywiki/filesystem\" and \"tiddlywiki/tiddlyweb\") are missing from tiddlywiki.info file");
+	}
+	// Listen
+	var server;
+	if(this.listenOptions) {
+		server = this.transport.createServer(this.listenOptions,this.requestHandler.bind(this));
+	} else {
+		server = this.transport.createServer(this.requestHandler.bind(this));
+	}
+	return server.listen(port,host);
+};
+
+exports.Server = Server;
+
+})();

core/modules/startup/render.js

@@ -57,14 +57,24 @@ exports.startup = function() {
 		$tw.utils.addClass($tw.pageContainer,"tc-page-container-wrapper");
 		document.body.insertBefore($tw.pageContainer,document.body.firstChild);
 		$tw.pageWidgetNode.render($tw.pageContainer,null);
+   		$tw.hooks.invokeHook("th-page-refreshed");
 	})();
+	// Remove any splash screen elements
+	var removeList = document.querySelectorAll(".tc-remove-when-wiki-loaded");
+	$tw.utils.each(removeList,function(removeItem) {
+		if(removeItem.parentNode) {
+			removeItem.parentNode.removeChild(removeItem);
+		}
+	});
 	// Prepare refresh mechanism
 	var deferredChanges = Object.create(null),
 		timerId;
 	function refresh() {
 		// Process the refresh
+		$tw.hooks.invokeHook("th-page-refreshing");
 		$tw.pageWidgetNode.refresh(deferredChanges);
 		deferredChanges = Object.create(null);
+		$tw.hooks.invokeHook("th-page-refreshed");
 	}
 	// Add the change event handler
 	$tw.wiki.addEventListener("change",$tw.perf.report("mainRefresh",function(changes) {

core/modules/startup/rootwidget.js

@@ -23,13 +23,17 @@ exports.startup = function() {
 	// Install the modal message mechanism
 	$tw.modal = new $tw.utils.Modal($tw.wiki);
 	$tw.rootWidget.addEventListener("tm-modal",function(event) {
-		$tw.modal.display(event.param,{variables: event.paramObject});
+		$tw.modal.display(event.param,{variables: event.paramObject, event: event});
 	});
 	// Install the notification  mechanism
 	$tw.notifier = new $tw.utils.Notifier($tw.wiki);
 	$tw.rootWidget.addEventListener("tm-notify",function(event) {
 		$tw.notifier.display(event.param,{variables: event.paramObject});
 	});
+	// Install the copy-to-clipboard  mechanism
+	$tw.rootWidget.addEventListener("tm-copy-to-clipboard",function(event) {
+		$tw.utils.copyToClipboard(event.param);
+	});
 	// Install the scroller
 	$tw.pageScroller = new $tw.utils.PageScroller();
 	$tw.rootWidget.addEventListener("tm-scroll",function(event) {
@@ -38,10 +42,17 @@ exports.startup = function() {
 	var fullscreen = $tw.utils.getFullScreenApis();
 	if(fullscreen) {
 		$tw.rootWidget.addEventListener("tm-full-screen",function(event) {
-			if(document[fullscreen._fullscreenElement]) {
-				document[fullscreen._exitFullscreen]();
+			var fullScreenDocument = event.event ? event.event.target.ownerDocument : document;
+			if(event.param === "enter") {
+				fullScreenDocument.documentElement[fullscreen._requestFullscreen](Element.ALLOW_KEYBOARD_INPUT);
+			} else if(event.param === "exit") {
+				fullScreenDocument[fullscreen._exitFullscreen]();
 			} else {
-				document.documentElement[fullscreen._requestFullscreen](Element.ALLOW_KEYBOARD_INPUT);
+				if(fullScreenDocument[fullscreen._fullscreenElement]) {
+					fullScreenDocument[fullscreen._exitFullscreen]();
+				} else {
+					fullScreenDocument.documentElement[fullscreen._requestFullscreen](Element.ALLOW_KEYBOARD_INPUT);
+				}				
 			}
 		});
 	}

core/modules/startup/startup.js

@@ -34,7 +34,7 @@ exports.startup = function() {
 	if($tw.browser) {
 		$tw.platform.isMac = /Mac/.test(navigator.platform);
 		$tw.platform.isWindows = /win/i.test(navigator.platform);
-		$tw.platform.isLinux = /Linux/i.test(navigator.appVersion);
+		$tw.platform.isLinux = /Linux/i.test(navigator.platform);
 	} else {
 		switch(require("os").platform()) {
 			case "darwin":
@@ -55,6 +55,27 @@ exports.startup = function() {
 	$tw.version = $tw.utils.extractVersionInfo();
 	// Set up the performance framework
 	$tw.perf = new $tw.Performance($tw.wiki.getTiddlerText(PERFORMANCE_INSTRUMENTATION_CONFIG_TITLE,"no") === "yes");
+	// Create a root widget for attaching event handlers. By using it as the parentWidget for another widget tree, one can reuse the event handlers
+	$tw.rootWidget = new widget.widget({
+		type: "widget",
+		children: []
+	},{
+		wiki: $tw.wiki,
+		document: $tw.browser ? document : $tw.fakeDocument
+	});
+	// Execute any startup actions
+	var executeStartupTiddlers = function(tag) {
+		$tw.utils.each($tw.wiki.filterTiddlers("[all[shadows+tiddlers]tag[" + tag + "]!has[draft.of]]"),function(title) {
+			$tw.rootWidget.invokeActionString($tw.wiki.getTiddlerText(title),$tw.rootWidget);
+		});
+	};
+	executeStartupTiddlers("$:/tags/StartupAction");
+	if($tw.browser) {
+		executeStartupTiddlers("$:/tags/StartupAction/Browser");		
+	}
+	if($tw.node) {
+		executeStartupTiddlers("$:/tags/StartupAction/Node");		
+	}
 	// Kick off the language manager and switcher
 	$tw.language = new $tw.Language();
 	$tw.languageSwitcher = new $tw.PluginSwitcher({
@@ -62,7 +83,7 @@ exports.startup = function() {
 		pluginType: "language",
 		controllerTitle: "$:/language",
 		defaultPlugins: [
-			"$:/languages/en-US"
+			"$:/languages/en-GB"
 		],
 		onSwitch: function(plugins) {
 			if($tw.browser) {
@@ -87,18 +108,16 @@ exports.startup = function() {
 	});
 	// Kick off the keyboard manager
 	$tw.keyboardManager = new $tw.KeyboardManager();
+	// Listen for shortcuts
+	if($tw.browser) {
+		$tw.utils.addEventListeners(document,[{
+			name: "keydown",
+			handlerObject: $tw.keyboardManager,
+			handlerMethod: "handleKeydownEvent"
+		}]);
+	}
 	// Clear outstanding tiddler store change events to avoid an unnecessary refresh cycle at startup
 	$tw.wiki.clearTiddlerEventQueue();
-	// Create a root widget for attaching event handlers. By using it as the parentWidget for another widget tree, one can reuse the event handlers
-	if($tw.browser) {
-		$tw.rootWidget = new widget.widget({
-			type: "widget",
-			children: []
-		},{
-			wiki: $tw.wiki,
-			document: document
-		});
-	}
 	// Find a working syncadaptor
 	$tw.syncadaptor = undefined;
 	$tw.modules.forEachModuleOfType("syncadaptor",function(title,module) {
@@ -111,7 +130,11 @@ exports.startup = function() {
 		$tw.syncer = new $tw.Syncer({wiki: $tw.wiki, syncadaptor: $tw.syncadaptor});
 	} 
 	// Setup the saver handler
-	$tw.saverHandler = new $tw.SaverHandler({wiki: $tw.wiki, dirtyTracking: !$tw.syncadaptor});
+	$tw.saverHandler = new $tw.SaverHandler({
+		wiki: $tw.wiki,
+		dirtyTracking: !$tw.syncadaptor,
+		preloadDirty: $tw.boot.preloadDirty || []
+	});
 	// Host-specific startup
 	if($tw.browser) {
 		// Install the popup manager

core/modules/startup/story.js

@@ -27,10 +27,18 @@ var DEFAULT_TIDDLERS_TITLE = "$:/DefaultTiddlers";
 // Config
 var CONFIG_UPDATE_ADDRESS_BAR = "$:/config/Navigation/UpdateAddressBar"; // Can be "no", "permalink", "permaview"
 var CONFIG_UPDATE_HISTORY = "$:/config/Navigation/UpdateHistory"; // Can be "yes" or "no"
+var CONFIG_PERMALINKVIEW_COPY_TO_CLIPBOARD = "$:/config/Navigation/Permalinkview/CopyToClipboard"; // Can be "yes" (default) or "no"
+var CONFIG_PERMALINKVIEW_UPDATE_ADDRESS_BAR = "$:/config/Navigation/Permalinkview/UpdateAddressBar"; // Can be "yes" (default) or "no"
+
+
+// Links to help, if there is no param
+var HELP_OPEN_EXTERNAL_WINDOW = "http://tiddlywiki.com/#WidgetMessage%3A%20tm-open-external-window";
 
 exports.startup = function() {
 	// Open startup tiddlers
-	openStartupTiddlers();
+	openStartupTiddlers({
+		disableHistory: $tw.boot.disableStartupNavigation
+	});
 	if($tw.browser) {
 		// Set up location hash update
 		$tw.wiki.addEventListener("change",function(changes) {
@@ -53,6 +61,14 @@ exports.startup = function() {
 		$tw.rootWidget.addEventListener("tm-browser-refresh",function(event) {
 			window.location.reload(true);
 		});
+		// Listen for tm-open-external-window message
+		$tw.rootWidget.addEventListener("tm-open-external-window",function(event) {
+			var paramObject = event.paramObject || {},
+				strUrl = event.param || HELP_OPEN_EXTERNAL_WINDOW,
+				strWindowName = paramObject.windowName,
+				strWindowFeatures = paramObject.windowFeatures;
+			window.open(strUrl, strWindowName, strWindowFeatures);
+		});
 		// Listen for the tm-print message
 		$tw.rootWidget.addEventListener("tm-print",function(event) {
 			(event.event.view || window).print();
@@ -66,30 +82,33 @@ exports.startup = function() {
 			storyList = $tw.hooks.invokeHook("th-opening-default-tiddlers-list",storyList);
 			$tw.wiki.addTiddler({title: DEFAULT_STORY_TITLE, text: "", list: storyList},$tw.wiki.getModificationFields());
 			if(storyList[0]) {
-				$tw.wiki.addToHistory(storyList[0]);				
+				$tw.wiki.addToHistory(storyList[0]);
 			}
 		});
 		// Listen for the tm-permalink message
 		$tw.rootWidget.addEventListener("tm-permalink",function(event) {
 			updateLocationHash({
-				updateAddressBar: "permalink",
+				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
+				targetTiddler: event.param || event.tiddlerTitle,
+				copyToClipboard: $tw.wiki.getTiddlerText(CONFIG_PERMALINKVIEW_COPY_TO_CLIPBOARD,"yes").trim() === "yes" ? "permalink" : "none"
 			});
 		});
 		// Listen for the tm-permaview message
 		$tw.rootWidget.addEventListener("tm-permaview",function(event) {
 			updateLocationHash({
-				updateAddressBar: "permaview",
+				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
-			});
+				targetTiddler: event.param || event.tiddlerTitle,
+				copyToClipboard: $tw.wiki.getTiddlerText(CONFIG_PERMALINKVIEW_COPY_TO_CLIPBOARD,"yes").trim() === "yes" ? "permaview" : "none"
+			});				
 		});
 	}
 };
 
 /*
 Process the location hash to open the specified tiddlers. Options:
+disableHistory: if true $:/History is NOT updated
 defaultToCurrentStory: If true, the current story is retained as the default, instead of opening the default tiddlers
 */
 function openStartupTiddlers(options) {
@@ -130,15 +149,18 @@ function openStartupTiddlers(options) {
 	}
 	// Save the story list
 	$tw.wiki.addTiddler({title: DEFAULT_STORY_TITLE, text: "", list: storyList},$tw.wiki.getModificationFields());
-	// If a target tiddler was specified add it to the history stack
-	if(target && target !== "") {
-		// The target tiddler doesn't need double square brackets, but we'll silently remove them if they're present
-		if(target.indexOf("[[") === 0 && target.substr(-2) === "]]") {
-			target = target.substr(2,target.length - 4);
-		}
-		$tw.wiki.addToHistory(target);
-	} else if(storyList.length > 0) {
-		$tw.wiki.addToHistory(storyList[0]);
+	// Update history
+	if(!options.disableHistory) {
+		// If a target tiddler was specified add it to the history stack
+		if(target && target !== "") {
+			// The target tiddler doesn't need double square brackets, but we'll silently remove them if they're present
+			if(target.indexOf("[[") === 0 && target.substr(-2) === "]]") {
+				target = target.substr(2,target.length - 4);
+			}
+			$tw.wiki.addToHistory(target);
+		} else if(storyList.length > 0) {
+			$tw.wiki.addToHistory(storyList[0]);
+		}		
 	}
 }
 
@@ -146,41 +168,52 @@ function openStartupTiddlers(options) {
 options: See below
 options.updateAddressBar: "permalink", "permaview" or "no" (defaults to "permaview")
 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
 */
 function updateLocationHash(options) {
-	if(options.updateAddressBar !== "no") {
-		// Get the story and the history stack
-		var storyList = $tw.wiki.getTiddlerList(DEFAULT_STORY_TITLE),
-			historyList = $tw.wiki.getTiddlerData(DEFAULT_HISTORY_TITLE,[]),
+	// Get the story and the history stack
+	var storyList = $tw.wiki.getTiddlerList(DEFAULT_STORY_TITLE),
+		historyList = $tw.wiki.getTiddlerData(DEFAULT_HISTORY_TITLE,[]),
+		targetTiddler = "";
+	if(options.targetTiddler) {
+		targetTiddler = options.targetTiddler;
+	} else {
+		// The target tiddler is the one at the top of the stack
+		if(historyList.length > 0) {
+			targetTiddler = historyList[historyList.length-1].title;
+		}
+		// Blank the target tiddler if it isn't present in the story
+		if(storyList.indexOf(targetTiddler) === -1) {
 			targetTiddler = "";
-		if(options.targetTiddler) {
-			targetTiddler = options.targetTiddler;
-		} else {
-			// The target tiddler is the one at the top of the stack
-			if(historyList.length > 0) {
-				targetTiddler = historyList[historyList.length-1].title;
-			}
-			// Blank the target tiddler if it isn't present in the story
-			if(storyList.indexOf(targetTiddler) === -1) {
-				targetTiddler = "";
-			}
 		}
-		// Assemble the location hash
-		if(options.updateAddressBar === "permalink") {
+	}
+	// Assemble the location hash
+	switch(options.updateAddressBar) {
+		case "permalink":
 			$tw.locationHash = "#" + encodeURIComponent(targetTiddler);
-		} else {
+			break;
+		case "permaview":
 			$tw.locationHash = "#" + encodeURIComponent(targetTiddler) + ":" + encodeURIComponent($tw.utils.stringifyList(storyList));
-		}
-		// Only change the location hash if we must, thus avoiding unnecessary onhashchange events
-		if($tw.utils.getLocationHash() !== $tw.locationHash) {
-			if(options.updateHistory === "yes") {
-				// Assign the location hash so that history is updated
-				window.location.hash = $tw.locationHash;
-			} else {
-				// We use replace so that browser history isn't affected
-				window.location.replace(window.location.toString().split("#")[0] + $tw.locationHash);
-			}
+			break;
+	}
+	// Copy URL to the clipboard
+	switch(options.copyToClipboard) {
+		case "permalink":
+			$tw.utils.copyToClipboard($tw.utils.getLocationPath() + "#" + encodeURIComponent(targetTiddler));
+			break;
+		case "permaview":
+			$tw.utils.copyToClipboard($tw.utils.getLocationPath() + "#" + encodeURIComponent(targetTiddler) + ":" + encodeURIComponent($tw.utils.stringifyList(storyList)));
+			break;
+	}
+	// Only change the location hash if we must, thus avoiding unnecessary onhashchange events
+	if($tw.utils.getLocationHash() !== $tw.locationHash) {
+		if(options.updateHistory === "yes") {
+			// Assign the location hash so that history is updated
+			window.location.hash = $tw.locationHash;
+		} else {
+			// We use replace so that browser history isn't affected
+			window.location.replace(window.location.toString().split("#")[0] + $tw.locationHash);
 		}
 	}
 }

core/modules/startup/windows.js

@@ -33,8 +33,16 @@ exports.startup = function() {
 			height = paramObject.height || "600",
 			variables = $tw.utils.extend({},paramObject,{currentTiddler: title});
 		// Open the window
-		var srcWindow = window.open("","external-" + title,"scrollbars,width=" + width + ",height=" + height),
+		var srcWindow,
+		    srcDocument;
+		// In case that popup blockers deny opening a new window
+		try {
+			srcWindow = window.open("","external-" + title,"scrollbars,width=" + width + ",height=" + height),
 			srcDocument = srcWindow.document;
+		}
+		catch(e) {
+			return;
+		}
 		windows[title] = srcWindow;
 		// Check for reopening the same window
 		if(srcWindow.haveInitialisedWindow) {
@@ -70,6 +78,16 @@ exports.startup = function() {
 			widgetNode.refresh(changes);
 		};
 		$tw.wiki.addEventListener("change",refreshHandler);
+		// Listen for keyboard shortcuts
+		$tw.utils.addEventListeners(srcDocument,[{
+			name: "keydown",
+			handlerObject: $tw.keyboardManager,
+			handlerMethod: "handleKeydownEvent"
+		},{
+			name: "click",
+			handlerObject: $tw.popup,
+			handlerMethod: "handleEvent"
+		}]);
 		srcWindow.haveInitialisedWindow = true;
 	});
 	// Close open windows when unloading main window

core/modules/syncer.js

@@ -16,8 +16,11 @@ The syncer tracks changes to the store. If a syncadaptor is used then individual
 Defaults
 */
 Syncer.prototype.titleIsLoggedIn = "$:/status/IsLoggedIn";
+Syncer.prototype.titleIsAnonymous = "$:/status/IsAnonymous";
+Syncer.prototype.titleIsReadOnly = "$:/status/IsReadOnly";
 Syncer.prototype.titleUserName = "$:/status/UserName";
 Syncer.prototype.titleSyncFilter = "$:/config/SyncFilter";
+Syncer.prototype.titleSyncPollingInterval = "$:/config/SyncPollingInterval";
 Syncer.prototype.titleSavedNotification = "$:/language/Notifications/Save/Done";
 Syncer.prototype.taskTimerInterval = 1 * 1000; // Interval for sync timer
 Syncer.prototype.throttleInterval = 1 * 1000; // Defer saving tiddlers if they've changed in the last 1s...
@@ -41,7 +44,7 @@ function Syncer(options) {
 	this.taskTimerInterval = options.taskTimerInterval || this.taskTimerInterval;
 	this.throttleInterval = options.throttleInterval || this.throttleInterval;
 	this.fallbackInterval = options.fallbackInterval || this.fallbackInterval;
-	this.pollTimerInterval = options.pollTimerInterval || this.pollTimerInterval;
+	this.pollTimerInterval = options.pollTimerInterval || parseInt(this.wiki.getTiddlerText(this.titleSyncPollingInterval,""),10) || this.pollTimerInterval;
 	this.logging = "logging" in options ? options.logging : true;
 	// Make a logger
 	this.logger = new $tw.utils.Logger("syncer" + ($tw.browser ? "-browser" : "") + ($tw.node ? "-server" : "")  + (this.syncadaptor.name ? ("-" + this.syncadaptor.name) : ""),{
@@ -151,7 +154,7 @@ Save an incoming tiddler in the store, and updates the associated tiddlerInfo
 */
 Syncer.prototype.storeTiddler = function(tiddlerFields,hasBeenLazyLoaded) {
 	// Save the tiddler
-	var tiddler = new $tw.Tiddler(this.wiki.getTiddler(tiddlerFields.title),tiddlerFields);
+	var tiddler = new $tw.Tiddler(tiddlerFields);
 	this.wiki.addTiddler(tiddler);
 	// Save the tiddler revision and changeCount details
 	this.tiddlerInfo[tiddlerFields.title] = {
@@ -169,17 +172,17 @@ Syncer.prototype.getStatus = function(callback) {
 		// Mark us as not logged in
 		this.wiki.addTiddler({title: this.titleIsLoggedIn,text: "no"});
 		// Get login status
-		this.syncadaptor.getStatus(function(err,isLoggedIn,username) {
+		this.syncadaptor.getStatus(function(err,isLoggedIn,username,isReadOnly,isAnonymous) {
 			if(err) {
 				self.logger.alert(err);
 				return;
 			}
 			// Set the various status tiddlers
+			self.wiki.addTiddler({title: self.titleIsReadOnly,text: isReadOnly ? "yes" : "no"});
+			self.wiki.addTiddler({title: self.titleIsAnonymous,text: isAnonymous ? "yes" : "no"});
 			self.wiki.addTiddler({title: self.titleIsLoggedIn,text: isLoggedIn ? "yes" : "no"});
 			if(isLoggedIn) {
 				self.wiki.addTiddler({title: self.titleUserName,text: username || ""});
-			} else {
-				self.wiki.deleteTiddler(self.titleUserName);
 			}
 			// Invoke the callback
 			if(callback) {
@@ -271,13 +274,16 @@ Syncer.prototype.handleLazyLoadEvent = function(title) {
 	// Don't lazy load the same tiddler twice
 	var info = this.tiddlerInfo[title];
 	if(!info || !info.hasBeenLazyLoaded) {
-		this.createTiddlerInfo(title);
-		this.tiddlerInfo[title].hasBeenLazyLoaded = true;
-		// Queue up a sync task to load this tiddler
-		this.enqueueSyncTask({
-			type: "load",
-			title: title
-		});		
+		// Don't lazy load if the tiddler isn't included in the sync filter
+		if(this.filterFn.call(this.wiki).indexOf(title) !== -1) {
+			this.createTiddlerInfo(title);
+			this.tiddlerInfo[title].hasBeenLazyLoaded = true;
+			// Queue up a sync task to load this tiddler
+			this.enqueueSyncTask({
+				type: "load",
+				title: title
+			});
+		}
 	}
 };
 

core/modules/tiddler.js

@@ -39,6 +39,18 @@ exports.getFieldString = function(field) {
 	}
 };
 
+/*
+Get the value of a field as a list
+*/
+exports.getFieldList = function(field) {
+	var value = this.fields[field];
+	// Check for a missing field
+	if(value === undefined || value === null) {
+		return [];
+	}
+	return $tw.utils.parseStringArray(value);
+};
+
 /*
 Get all the fields as a hashmap of strings. Options:
 	exclude: an array of field names to exclude
@@ -75,57 +87,6 @@ exports.getFieldStringBlock = function(options) {
 	return fields.join("\n");
 };
 
-/*
-Compare two tiddlers for equality
-tiddler: the tiddler to compare
-excludeFields: array of field names to exclude from the comparison
-*/
-exports.isEqual = function(tiddler,excludeFields) {
-	if(!(tiddler instanceof $tw.Tiddler)) {
-		return false;
-	}
-	excludeFields = excludeFields || [];
-	var self = this,
-		differences = []; // Fields that have differences
-	// Add to the differences array
-	function addDifference(fieldName) {
-		// Check for this field being excluded
-		if(excludeFields.indexOf(fieldName) === -1) {
-			// Save the field as a difference
-			$tw.utils.pushTop(differences,fieldName);
-		}
-	}
-	// Returns true if the two values of this field are equal
-	function isFieldValueEqual(fieldName) {
-		var valueA = self.fields[fieldName],
-			valueB = tiddler.fields[fieldName];
-		// Check for identical string values
-		if(typeof(valueA) === "string" && typeof(valueB) === "string" && valueA === valueB) {
-			return true;
-		}
-		// Check for identical array values
-		if($tw.utils.isArray(valueA) && $tw.utils.isArray(valueB) && $tw.utils.isArrayEqual(valueA,valueB)) {
-			return true;
-		}
-		// Otherwise the fields must be different
-		return false;
-	}
-	// Compare our fields
-	for(var fieldName in this.fields) {
-		if(!isFieldValueEqual(fieldName)) {
-			addDifference(fieldName);
-		}
-	}
-	// There's a difference for every field in the other tiddler that we don't have
-	for(fieldName in tiddler.fields) {
-		if(!(fieldName in this.fields)) {
-			addDifference(fieldName);
-		}
-	}
-	// Return whether there were any differences
-	return differences.length === 0;
-};
-
 exports.getFieldDay = function(field) {
 	if(this.cache && this.cache.day && $tw.utils.hop(this.cache.day,field) ) {
 		return this.cache.day[field];

core/modules/upgraders/system.js

@@ -13,11 +13,13 @@ Upgrader module that suppresses certain system tiddlers that shouldn't be import
 "use strict";
 
 var DONT_IMPORT_LIST = ["$:/StoryList","$:/HistoryList"],
-	DONT_IMPORT_PREFIX_LIST = ["$:/temp/","$:/state/"];
+	DONT_IMPORT_PREFIX_LIST = ["$:/temp/","$:/state/","$:/Import"],
+	WARN_IMPORT_PREFIX_LIST = ["$:/core/modules/"];
 
 exports.upgrade = function(wiki,titles,tiddlers) {
 	var self = this,
-		messages = {};
+		messages = {},
+		showAlert = false;
 	// Check for tiddlers on our list
 	$tw.utils.each(titles,function(title) {
 		if(DONT_IMPORT_LIST.indexOf(title) !== -1) {
@@ -31,6 +33,17 @@ exports.upgrade = function(wiki,titles,tiddlers) {
 					messages[title] = $tw.language.getString("Import/Upgrader/State/Suppressed");
 				}
 			}
+			for(var t=0; t<WARN_IMPORT_PREFIX_LIST.length; t++) {
+				var prefix = WARN_IMPORT_PREFIX_LIST[t];
+				if(title.substr(0,prefix.length) === prefix) {
+					showAlert = true;
+					messages[title] = $tw.language.getString("Import/Upgrader/System/Warning");
+				}
+			}
+		}
+		if(showAlert) {
+			var logger = new $tw.utils.Logger("import");
+			logger.alert($tw.language.getString("Import/Upgrader/System/Alert"));
 		}
 	});
 	return messages;

core/modules/utils/csv.js

@@ -0,0 +1,46 @@
+/*\
+title: $:/core/modules/utils/csv.js
+type: application/javascript
+module-type: utils
+
+A barebones CSV parser
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+/*
+Parse a CSV string with a header row and return an array of hashmaps.
+*/
+exports.parseCsvStringWithHeader = function(text,options) {
+	options = options || {};
+	var separator = options.separator || ",",
+		rows = text.split(/\r?\n/mg).map(function(row) {
+			return $tw.utils.trim(row);
+		}).filter(function(row) {
+			return row !== "";
+		});
+	if(rows.length < 1) {
+		return "Missing header row";
+	}
+	var headings = rows[0].split(separator),
+		results = [];
+	for(var row=1; row<rows.length; row++) {
+		var columns = rows[row].split(separator),
+			columnResult = Object.create(null);
+		if(columns.length !== headings.length) {
+			return "Malformed CSV row '" + rows[row] + "'";
+		}
+		for(var column=0; column<columns.length; column++) {
+			var columnName = headings[column];
+			columnResult[columnName] = $tw.utils.trim(columns[column] || "");
+		}
+		results.push(columnResult);			
+	}
+	return results;
+}
+
+})();

core/modules/utils/diff-match-patch/LICENSE

@@ -0,0 +1,202 @@
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core/modules/utils/diff-match-patch/README.md

@@ -0,0 +1,41 @@
+The Diff Match and Patch libraries offer robust algorithms to perform the
+operations required for synchronizing plain text.
+
+1. Diff:
+   * Compare two blocks of plain text and efficiently return a list of differences.
+   * [Diff Demo](https://neil.fraser.name/software/diff_match_patch/demos/diff.html)
+2. Match:
+   * Given a search string, find its best fuzzy match in a block of plain text. Weighted for both accuracy and location.
+   * [Match Demo](https://neil.fraser.name/software/diff_match_patch/demos/match.html)
+3. Patch:
+   * Apply a list of patches onto plain text. Use best-effort to apply patch even when the underlying text doesn't match.
+   * [Patch Demo](https://neil.fraser.name/software/diff_match_patch/demos/patch.html)
+
+Originally built in 2006 to power Google Docs, this library is now available in C++, C#, Dart, Java, JavaScript, Lua, Objective C, and Python.
+
+### Reference
+
+* [API](https://github.com/google/diff-match-patch/wiki/API) - Common API across all languages.
+* [Line or Word Diffs](https://github.com/google/diff-match-patch/wiki/Line-or-Word-Diffs) - Less detailed diffs.
+* [Plain Text vs. Structured Content](https://github.com/google/diff-match-patch/wiki/Plain-Text-vs.-Structured-Content) - How to deal with data like XML.
+* [Unidiff](https://github.com/google/diff-match-patch/wiki/Unidiff) - The patch serialization format.
+* [Support](https://groups.google.com/forum/#!forum/diff-match-patch) - Newsgroup for developers.
+
+### Languages
+Although each language port of Diff Match Patch uses the same API, there are some language-specific notes.
+
+* [C++](https://github.com/google/diff-match-patch/wiki/Language:-Cpp)
+* [C#](https://github.com/google/diff-match-patch/wiki/Language:-C%23)
+* [Dart](https://github.com/google/diff-match-patch/wiki/Language:-Dart)
+* [Java](https://github.com/google/diff-match-patch/wiki/Language:-Java)
+* [JavaScript](https://github.com/google/diff-match-patch/wiki/Language:-JavaScript)
+* [Lua](https://github.com/google/diff-match-patch/wiki/Language:-Lua)
+* [Objective-C](https://github.com/google/diff-match-patch/wiki/Language:-Objective-C)
+* [Python](https://github.com/google/diff-match-patch/wiki/Language:-Python)
+
+A standardized speed test tracks the [relative performance of diffs](https://docs.google.com/spreadsheets/d/1zpZccuBpjMZTvL1nGDMKJc7rWL_m_drF4XKOJvB27Kc/edit#gid=0) in each language.
+
+### Algorithms
+This library implements [Myer's diff algorithm](https://neil.fraser.name/writing/diff/myers.pdf) which is generally considered to be the best general-purpose diff. A layer of [pre-diff speedups and post-diff cleanups](https://neil.fraser.name/writing/diff/) surround the diff algorithm, improving both performance and output quality.
+
+This library also implements a [Bitap matching algorithm](https://neil.fraser.name/writing/patch/bitap.ps) at the heart of a [flexible matching and patching strategy](https://neil.fraser.name/writing/patch/).

core/modules/utils/diff-match-patch/diff_match_patch.js

@@ -0,0 +1,53 @@
+function diff_match_patch(){this.Diff_Timeout=1;this.Diff_EditCost=4;this.Match_Threshold=.5;this.Match_Distance=1E3;this.Patch_DeleteThreshold=.5;this.Patch_Margin=4;this.Match_MaxBits=32}var DIFF_DELETE=-1,DIFF_INSERT=1,DIFF_EQUAL=0;
+diff_match_patch.prototype.diff_main=function(a,b,c,d){"undefined"==typeof d&&(d=0>=this.Diff_Timeout?Number.MAX_VALUE:(new Date).getTime()+1E3*this.Diff_Timeout);if(null==a||null==b)throw Error("Null input. (diff_main)");if(a==b)return a?[[DIFF_EQUAL,a]]:[];"undefined"==typeof c&&(c=!0);var e=c,f=this.diff_commonPrefix(a,b);c=a.substring(0,f);a=a.substring(f);b=b.substring(f);f=this.diff_commonSuffix(a,b);var g=a.substring(a.length-f);a=a.substring(0,a.length-f);b=b.substring(0,b.length-f);a=this.diff_compute_(a,
+b,e,d);c&&a.unshift([DIFF_EQUAL,c]);g&&a.push([DIFF_EQUAL,g]);this.diff_cleanupMerge(a);return a};
+diff_match_patch.prototype.diff_compute_=function(a,b,c,d){if(!a)return[[DIFF_INSERT,b]];if(!b)return[[DIFF_DELETE,a]];var e=a.length>b.length?a:b,f=a.length>b.length?b:a,g=e.indexOf(f);return-1!=g?(c=[[DIFF_INSERT,e.substring(0,g)],[DIFF_EQUAL,f],[DIFF_INSERT,e.substring(g+f.length)]],a.length>b.length&&(c[0][0]=c[2][0]=DIFF_DELETE),c):1==f.length?[[DIFF_DELETE,a],[DIFF_INSERT,b]]:(e=this.diff_halfMatch_(a,b))?(b=e[1],f=e[3],a=e[4],e=this.diff_main(e[0],e[2],c,d),c=this.diff_main(b,f,c,d),e.concat([[DIFF_EQUAL,
+a]],c)):c&&100<a.length&&100<b.length?this.diff_lineMode_(a,b,d):this.diff_bisect_(a,b,d)};
+diff_match_patch.prototype.diff_lineMode_=function(a,b,c){var d=this.diff_linesToChars_(a,b);a=d.chars1;b=d.chars2;d=d.lineArray;a=this.diff_main(a,b,!1,c);this.diff_charsToLines_(a,d);this.diff_cleanupSemantic(a);a.push([DIFF_EQUAL,""]);for(var e=d=b=0,f="",g="";b<a.length;){switch(a[b][0]){case DIFF_INSERT:e++;g+=a[b][1];break;case DIFF_DELETE:d++;f+=a[b][1];break;case DIFF_EQUAL:if(1<=d&&1<=e){a.splice(b-d-e,d+e);b=b-d-e;d=this.diff_main(f,g,!1,c);for(e=d.length-1;0<=e;e--)a.splice(b,0,d[e]);b+=
+d.length}d=e=0;g=f=""}b++}a.pop();return a};
+diff_match_patch.prototype.diff_bisect_=function(a,b,c){for(var d=a.length,e=b.length,f=Math.ceil((d+e)/2),g=2*f,h=Array(g),l=Array(g),k=0;k<g;k++)h[k]=-1,l[k]=-1;h[f+1]=0;l[f+1]=0;k=d-e;for(var m=0!=k%2,p=0,x=0,w=0,q=0,t=0;t<f&&!((new Date).getTime()>c);t++){for(var v=-t+p;v<=t-x;v+=2){var n=f+v;var r=v==-t||v!=t&&h[n-1]<h[n+1]?h[n+1]:h[n-1]+1;for(var y=r-v;r<d&&y<e&&a.charAt(r)==b.charAt(y);)r++,y++;h[n]=r;if(r>d)x+=2;else if(y>e)p+=2;else if(m&&(n=f+k-v,0<=n&&n<g&&-1!=l[n])){var u=d-l[n];if(r>=
+u)return this.diff_bisectSplit_(a,b,r,y,c)}}for(v=-t+w;v<=t-q;v+=2){n=f+v;u=v==-t||v!=t&&l[n-1]<l[n+1]?l[n+1]:l[n-1]+1;for(r=u-v;u<d&&r<e&&a.charAt(d-u-1)==b.charAt(e-r-1);)u++,r++;l[n]=u;if(u>d)q+=2;else if(r>e)w+=2;else if(!m&&(n=f+k-v,0<=n&&n<g&&-1!=h[n]&&(r=h[n],y=f+r-n,u=d-u,r>=u)))return this.diff_bisectSplit_(a,b,r,y,c)}}return[[DIFF_DELETE,a],[DIFF_INSERT,b]]};
+diff_match_patch.prototype.diff_bisectSplit_=function(a,b,c,d,e){var f=a.substring(0,c),g=b.substring(0,d);a=a.substring(c);b=b.substring(d);f=this.diff_main(f,g,!1,e);e=this.diff_main(a,b,!1,e);return f.concat(e)};
+diff_match_patch.prototype.diff_linesToChars_=function(a,b){function c(a){for(var b="",c=0,f=-1,g=d.length;f<a.length-1;){f=a.indexOf("\n",c);-1==f&&(f=a.length-1);var h=a.substring(c,f+1);c=f+1;(e.hasOwnProperty?e.hasOwnProperty(h):void 0!==e[h])?b+=String.fromCharCode(e[h]):(b+=String.fromCharCode(g),e[h]=g,d[g++]=h)}return b}var d=[],e={};d[0]="";var f=c(a),g=c(b);return{chars1:f,chars2:g,lineArray:d}};
+diff_match_patch.prototype.diff_charsToLines_=function(a,b){for(var c=0;c<a.length;c++){for(var d=a[c][1],e=[],f=0;f<d.length;f++)e[f]=b[d.charCodeAt(f)];a[c][1]=e.join("")}};diff_match_patch.prototype.diff_commonPrefix=function(a,b){if(!a||!b||a.charAt(0)!=b.charAt(0))return 0;for(var c=0,d=Math.min(a.length,b.length),e=d,f=0;c<e;)a.substring(f,e)==b.substring(f,e)?f=c=e:d=e,e=Math.floor((d-c)/2+c);return e};
+diff_match_patch.prototype.diff_commonSuffix=function(a,b){if(!a||!b||a.charAt(a.length-1)!=b.charAt(b.length-1))return 0;for(var c=0,d=Math.min(a.length,b.length),e=d,f=0;c<e;)a.substring(a.length-e,a.length-f)==b.substring(b.length-e,b.length-f)?f=c=e:d=e,e=Math.floor((d-c)/2+c);return e};
+diff_match_patch.prototype.diff_commonOverlap_=function(a,b){var c=a.length,d=b.length;if(0==c||0==d)return 0;c>d?a=a.substring(c-d):c<d&&(b=b.substring(0,c));c=Math.min(c,d);if(a==b)return c;d=0;for(var e=1;;){var f=a.substring(c-e);f=b.indexOf(f);if(-1==f)return d;e+=f;if(0==f||a.substring(c-e)==b.substring(0,e))d=e,e++}};
+diff_match_patch.prototype.diff_halfMatch_=function(a,b){function c(a,b,c){for(var d=a.substring(c,c+Math.floor(a.length/4)),e=-1,g="",h,k,l,m;-1!=(e=b.indexOf(d,e+1));){var p=f.diff_commonPrefix(a.substring(c),b.substring(e)),u=f.diff_commonSuffix(a.substring(0,c),b.substring(0,e));g.length<u+p&&(g=b.substring(e-u,e)+b.substring(e,e+p),h=a.substring(0,c-u),k=a.substring(c+p),l=b.substring(0,e-u),m=b.substring(e+p))}return 2*g.length>=a.length?[h,k,l,m,g]:null}if(0>=this.Diff_Timeout)return null;
+var d=a.length>b.length?a:b,e=a.length>b.length?b:a;if(4>d.length||2*e.length<d.length)return null;var f=this,g=c(d,e,Math.ceil(d.length/4));d=c(d,e,Math.ceil(d.length/2));if(g||d)g=d?g?g[4].length>d[4].length?g:d:d:g;else return null;if(a.length>b.length){d=g[0];e=g[1];var h=g[2];var l=g[3]}else h=g[0],l=g[1],d=g[2],e=g[3];return[d,e,h,l,g[4]]};
+diff_match_patch.prototype.diff_cleanupSemantic=function(a){for(var b=!1,c=[],d=0,e=null,f=0,g=0,h=0,l=0,k=0;f<a.length;)a[f][0]==DIFF_EQUAL?(c[d++]=f,g=l,h=k,k=l=0,e=a[f][1]):(a[f][0]==DIFF_INSERT?l+=a[f][1].length:k+=a[f][1].length,e&&e.length<=Math.max(g,h)&&e.length<=Math.max(l,k)&&(a.splice(c[d-1],0,[DIFF_DELETE,e]),a[c[d-1]+1][0]=DIFF_INSERT,d--,d--,f=0<d?c[d-1]:-1,k=l=h=g=0,e=null,b=!0)),f++;b&&this.diff_cleanupMerge(a);this.diff_cleanupSemanticLossless(a);for(f=1;f<a.length;){if(a[f-1][0]==
+DIFF_DELETE&&a[f][0]==DIFF_INSERT){b=a[f-1][1];c=a[f][1];d=this.diff_commonOverlap_(b,c);e=this.diff_commonOverlap_(c,b);if(d>=e){if(d>=b.length/2||d>=c.length/2)a.splice(f,0,[DIFF_EQUAL,c.substring(0,d)]),a[f-1][1]=b.substring(0,b.length-d),a[f+1][1]=c.substring(d),f++}else if(e>=b.length/2||e>=c.length/2)a.splice(f,0,[DIFF_EQUAL,b.substring(0,e)]),a[f-1][0]=DIFF_INSERT,a[f-1][1]=c.substring(0,c.length-e),a[f+1][0]=DIFF_DELETE,a[f+1][1]=b.substring(e),f++;f++}f++}};
+diff_match_patch.prototype.diff_cleanupSemanticLossless=function(a){function b(a,b){if(!a||!b)return 6;var c=a.charAt(a.length-1),d=b.charAt(0),e=c.match(diff_match_patch.nonAlphaNumericRegex_),f=d.match(diff_match_patch.nonAlphaNumericRegex_),g=e&&c.match(diff_match_patch.whitespaceRegex_),h=f&&d.match(diff_match_patch.whitespaceRegex_);c=g&&c.match(diff_match_patch.linebreakRegex_);d=h&&d.match(diff_match_patch.linebreakRegex_);var k=c&&a.match(diff_match_patch.blanklineEndRegex_),l=d&&b.match(diff_match_patch.blanklineStartRegex_);
+return k||l?5:c||d?4:e&&!g&&h?3:g||h?2:e||f?1:0}for(var c=1;c<a.length-1;){if(a[c-1][0]==DIFF_EQUAL&&a[c+1][0]==DIFF_EQUAL){var d=a[c-1][1],e=a[c][1],f=a[c+1][1],g=this.diff_commonSuffix(d,e);if(g){var h=e.substring(e.length-g);d=d.substring(0,d.length-g);e=h+e.substring(0,e.length-g);f=h+f}g=d;h=e;for(var l=f,k=b(d,e)+b(e,f);e.charAt(0)===f.charAt(0);){d+=e.charAt(0);e=e.substring(1)+f.charAt(0);f=f.substring(1);var m=b(d,e)+b(e,f);m>=k&&(k=m,g=d,h=e,l=f)}a[c-1][1]!=g&&(g?a[c-1][1]=g:(a.splice(c-
+1,1),c--),a[c][1]=h,l?a[c+1][1]=l:(a.splice(c+1,1),c--))}c++}};diff_match_patch.nonAlphaNumericRegex_=/[^a-zA-Z0-9]/;diff_match_patch.whitespaceRegex_=/\s/;diff_match_patch.linebreakRegex_=/[\r\n]/;diff_match_patch.blanklineEndRegex_=/\n\r?\n$/;diff_match_patch.blanklineStartRegex_=/^\r?\n\r?\n/;
+diff_match_patch.prototype.diff_cleanupEfficiency=function(a){for(var b=!1,c=[],d=0,e=null,f=0,g=!1,h=!1,l=!1,k=!1;f<a.length;)a[f][0]==DIFF_EQUAL?(a[f][1].length<this.Diff_EditCost&&(l||k)?(c[d++]=f,g=l,h=k,e=a[f][1]):(d=0,e=null),l=k=!1):(a[f][0]==DIFF_DELETE?k=!0:l=!0,e&&(g&&h&&l&&k||e.length<this.Diff_EditCost/2&&3==g+h+l+k)&&(a.splice(c[d-1],0,[DIFF_DELETE,e]),a[c[d-1]+1][0]=DIFF_INSERT,d--,e=null,g&&h?(l=k=!0,d=0):(d--,f=0<d?c[d-1]:-1,l=k=!1),b=!0)),f++;b&&this.diff_cleanupMerge(a)};
+diff_match_patch.prototype.diff_cleanupMerge=function(a){a.push([DIFF_EQUAL,""]);for(var b=0,c=0,d=0,e="",f="",g;b<a.length;)switch(a[b][0]){case DIFF_INSERT:d++;f+=a[b][1];b++;break;case DIFF_DELETE:c++;e+=a[b][1];b++;break;case DIFF_EQUAL:1<c+d?(0!==c&&0!==d&&(g=this.diff_commonPrefix(f,e),0!==g&&(0<b-c-d&&a[b-c-d-1][0]==DIFF_EQUAL?a[b-c-d-1][1]+=f.substring(0,g):(a.splice(0,0,[DIFF_EQUAL,f.substring(0,g)]),b++),f=f.substring(g),e=e.substring(g)),g=this.diff_commonSuffix(f,e),0!==g&&(a[b][1]=f.substring(f.length-
+g)+a[b][1],f=f.substring(0,f.length-g),e=e.substring(0,e.length-g))),0===c?a.splice(b-d,c+d,[DIFF_INSERT,f]):0===d?a.splice(b-c,c+d,[DIFF_DELETE,e]):a.splice(b-c-d,c+d,[DIFF_DELETE,e],[DIFF_INSERT,f]),b=b-c-d+(c?1:0)+(d?1:0)+1):0!==b&&a[b-1][0]==DIFF_EQUAL?(a[b-1][1]+=a[b][1],a.splice(b,1)):b++,c=d=0,f=e=""}""===a[a.length-1][1]&&a.pop();c=!1;for(b=1;b<a.length-1;)a[b-1][0]==DIFF_EQUAL&&a[b+1][0]==DIFF_EQUAL&&(a[b][1].substring(a[b][1].length-a[b-1][1].length)==a[b-1][1]?(a[b][1]=a[b-1][1]+a[b][1].substring(0,
+a[b][1].length-a[b-1][1].length),a[b+1][1]=a[b-1][1]+a[b+1][1],a.splice(b-1,1),c=!0):a[b][1].substring(0,a[b+1][1].length)==a[b+1][1]&&(a[b-1][1]+=a[b+1][1],a[b][1]=a[b][1].substring(a[b+1][1].length)+a[b+1][1],a.splice(b+1,1),c=!0)),b++;c&&this.diff_cleanupMerge(a)};
+diff_match_patch.prototype.diff_xIndex=function(a,b){var c=0,d=0,e=0,f=0,g;for(g=0;g<a.length;g++){a[g][0]!==DIFF_INSERT&&(c+=a[g][1].length);a[g][0]!==DIFF_DELETE&&(d+=a[g][1].length);if(c>b)break;e=c;f=d}return a.length!=g&&a[g][0]===DIFF_DELETE?f:f+(b-e)};
+diff_match_patch.prototype.diff_prettyHtml=function(a){for(var b=[],c=/&/g,d=/</g,e=/>/g,f=/\n/g,g=0;g<a.length;g++){var h=a[g][0],l=a[g][1].replace(c,"&amp;").replace(d,"&lt;").replace(e,"&gt;").replace(f,"&para;<br>");switch(h){case DIFF_INSERT:b[g]='<ins style="background:#e6ffe6;">'+l+"</ins>";break;case DIFF_DELETE:b[g]='<del style="background:#ffe6e6;">'+l+"</del>";break;case DIFF_EQUAL:b[g]="<span>"+l+"</span>"}}return b.join("")};
+diff_match_patch.prototype.diff_text1=function(a){for(var b=[],c=0;c<a.length;c++)a[c][0]!==DIFF_INSERT&&(b[c]=a[c][1]);return b.join("")};diff_match_patch.prototype.diff_text2=function(a){for(var b=[],c=0;c<a.length;c++)a[c][0]!==DIFF_DELETE&&(b[c]=a[c][1]);return b.join("")};
+diff_match_patch.prototype.diff_levenshtein=function(a){for(var b=0,c=0,d=0,e=0;e<a.length;e++){var f=a[e][1];switch(a[e][0]){case DIFF_INSERT:c+=f.length;break;case DIFF_DELETE:d+=f.length;break;case DIFF_EQUAL:b+=Math.max(c,d),d=c=0}}return b+=Math.max(c,d)};
+diff_match_patch.prototype.diff_toDelta=function(a){for(var b=[],c=0;c<a.length;c++)switch(a[c][0]){case DIFF_INSERT:b[c]="+"+encodeURI(a[c][1]);break;case DIFF_DELETE:b[c]="-"+a[c][1].length;break;case DIFF_EQUAL:b[c]="="+a[c][1].length}return b.join("\t").replace(/%20/g," ")};
+diff_match_patch.prototype.diff_fromDelta=function(a,b){for(var c=[],d=0,e=0,f=b.split(/\t/g),g=0;g<f.length;g++){var h=f[g].substring(1);switch(f[g].charAt(0)){case "+":try{c[d++]=[DIFF_INSERT,decodeURI(h)]}catch(k){throw Error("Illegal escape in diff_fromDelta: "+h);}break;case "-":case "=":var l=parseInt(h,10);if(isNaN(l)||0>l)throw Error("Invalid number in diff_fromDelta: "+h);h=a.substring(e,e+=l);"="==f[g].charAt(0)?c[d++]=[DIFF_EQUAL,h]:c[d++]=[DIFF_DELETE,h];break;default:if(f[g])throw Error("Invalid diff operation in diff_fromDelta: "+
+f[g]);}}if(e!=a.length)throw Error("Delta length ("+e+") does not equal source text length ("+a.length+").");return c};diff_match_patch.prototype.match_main=function(a,b,c){if(null==a||null==b||null==c)throw Error("Null input. (match_main)");c=Math.max(0,Math.min(c,a.length));return a==b?0:a.length?a.substring(c,c+b.length)==b?c:this.match_bitap_(a,b,c):-1};
+diff_match_patch.prototype.match_bitap_=function(a,b,c){function d(a,d){var e=a/b.length,g=Math.abs(c-d);return f.Match_Distance?e+g/f.Match_Distance:g?1:e}if(b.length>this.Match_MaxBits)throw Error("Pattern too long for this browser.");var e=this.match_alphabet_(b),f=this,g=this.Match_Threshold,h=a.indexOf(b,c);-1!=h&&(g=Math.min(d(0,h),g),h=a.lastIndexOf(b,c+b.length),-1!=h&&(g=Math.min(d(0,h),g)));var l=1<<b.length-1;h=-1;for(var k,m,p=b.length+a.length,x,w=0;w<b.length;w++){k=0;for(m=p;k<m;)d(w,
+c+m)<=g?k=m:p=m,m=Math.floor((p-k)/2+k);p=m;k=Math.max(1,c-m+1);var q=Math.min(c+m,a.length)+b.length;m=Array(q+2);for(m[q+1]=(1<<w)-1;q>=k;q--){var t=e[a.charAt(q-1)];m[q]=0===w?(m[q+1]<<1|1)&t:(m[q+1]<<1|1)&t|(x[q+1]|x[q])<<1|1|x[q+1];if(m[q]&l&&(t=d(w,q-1),t<=g))if(g=t,h=q-1,h>c)k=Math.max(1,2*c-h);else break}if(d(w+1,c)>g)break;x=m}return h};
+diff_match_patch.prototype.match_alphabet_=function(a){for(var b={},c=0;c<a.length;c++)b[a.charAt(c)]=0;for(c=0;c<a.length;c++)b[a.charAt(c)]|=1<<a.length-c-1;return b};
+diff_match_patch.prototype.patch_addContext_=function(a,b){if(0!=b.length){for(var c=b.substring(a.start2,a.start2+a.length1),d=0;b.indexOf(c)!=b.lastIndexOf(c)&&c.length<this.Match_MaxBits-this.Patch_Margin-this.Patch_Margin;)d+=this.Patch_Margin,c=b.substring(a.start2-d,a.start2+a.length1+d);d+=this.Patch_Margin;(c=b.substring(a.start2-d,a.start2))&&a.diffs.unshift([DIFF_EQUAL,c]);(d=b.substring(a.start2+a.length1,a.start2+a.length1+d))&&a.diffs.push([DIFF_EQUAL,d]);a.start1-=c.length;a.start2-=
+c.length;a.length1+=c.length+d.length;a.length2+=c.length+d.length}};
+diff_match_patch.prototype.patch_make=function(a,b,c){if("string"==typeof a&&"string"==typeof b&&"undefined"==typeof c){var d=a;b=this.diff_main(d,b,!0);2<b.length&&(this.diff_cleanupSemantic(b),this.diff_cleanupEfficiency(b))}else if(a&&"object"==typeof a&&"undefined"==typeof b&&"undefined"==typeof c)b=a,d=this.diff_text1(b);else if("string"==typeof a&&b&&"object"==typeof b&&"undefined"==typeof c)d=a;else if("string"==typeof a&&"string"==typeof b&&c&&"object"==typeof c)d=a,b=c;else throw Error("Unknown call format to patch_make.");
+if(0===b.length)return[];c=[];a=new diff_match_patch.patch_obj;for(var e=0,f=0,g=0,h=d,l=0;l<b.length;l++){var k=b[l][0],m=b[l][1];e||k===DIFF_EQUAL||(a.start1=f,a.start2=g);switch(k){case DIFF_INSERT:a.diffs[e++]=b[l];a.length2+=m.length;d=d.substring(0,g)+m+d.substring(g);break;case DIFF_DELETE:a.length1+=m.length;a.diffs[e++]=b[l];d=d.substring(0,g)+d.substring(g+m.length);break;case DIFF_EQUAL:m.length<=2*this.Patch_Margin&&e&&b.length!=l+1?(a.diffs[e++]=b[l],a.length1+=m.length,a.length2+=m.length):
+m.length>=2*this.Patch_Margin&&e&&(this.patch_addContext_(a,h),c.push(a),a=new diff_match_patch.patch_obj,e=0,h=d,f=g)}k!==DIFF_INSERT&&(f+=m.length);k!==DIFF_DELETE&&(g+=m.length)}e&&(this.patch_addContext_(a,h),c.push(a));return c};
+diff_match_patch.prototype.patch_deepCopy=function(a){for(var b=[],c=0;c<a.length;c++){var d=a[c],e=new diff_match_patch.patch_obj;e.diffs=[];for(var f=0;f<d.diffs.length;f++)e.diffs[f]=d.diffs[f].slice();e.start1=d.start1;e.start2=d.start2;e.length1=d.length1;e.length2=d.length2;b[c]=e}return b};
+diff_match_patch.prototype.patch_apply=function(a,b){if(0==a.length)return[b,[]];a=this.patch_deepCopy(a);var c=this.patch_addPadding(a);b=c+b+c;this.patch_splitMax(a);for(var d=0,e=[],f=0;f<a.length;f++){var g=a[f].start2+d,h=this.diff_text1(a[f].diffs),l=-1;if(h.length>this.Match_MaxBits){var k=this.match_main(b,h.substring(0,this.Match_MaxBits),g);-1!=k&&(l=this.match_main(b,h.substring(h.length-this.Match_MaxBits),g+h.length-this.Match_MaxBits),-1==l||k>=l)&&(k=-1)}else k=this.match_main(b,h,
+g);if(-1==k)e[f]=!1,d-=a[f].length2-a[f].length1;else if(e[f]=!0,d=k-g,g=-1==l?b.substring(k,k+h.length):b.substring(k,l+this.Match_MaxBits),h==g)b=b.substring(0,k)+this.diff_text2(a[f].diffs)+b.substring(k+h.length);else if(g=this.diff_main(h,g,!1),h.length>this.Match_MaxBits&&this.diff_levenshtein(g)/h.length>this.Patch_DeleteThreshold)e[f]=!1;else{this.diff_cleanupSemanticLossless(g);h=0;var m;for(l=0;l<a[f].diffs.length;l++){var p=a[f].diffs[l];p[0]!==DIFF_EQUAL&&(m=this.diff_xIndex(g,h));p[0]===
+DIFF_INSERT?b=b.substring(0,k+m)+p[1]+b.substring(k+m):p[0]===DIFF_DELETE&&(b=b.substring(0,k+m)+b.substring(k+this.diff_xIndex(g,h+p[1].length)));p[0]!==DIFF_DELETE&&(h+=p[1].length)}}}b=b.substring(c.length,b.length-c.length);return[b,e]};
+diff_match_patch.prototype.patch_addPadding=function(a){for(var b=this.Patch_Margin,c="",d=1;d<=b;d++)c+=String.fromCharCode(d);for(d=0;d<a.length;d++)a[d].start1+=b,a[d].start2+=b;d=a[0];var e=d.diffs;if(0==e.length||e[0][0]!=DIFF_EQUAL)e.unshift([DIFF_EQUAL,c]),d.start1-=b,d.start2-=b,d.length1+=b,d.length2+=b;else if(b>e[0][1].length){var f=b-e[0][1].length;e[0][1]=c.substring(e[0][1].length)+e[0][1];d.start1-=f;d.start2-=f;d.length1+=f;d.length2+=f}d=a[a.length-1];e=d.diffs;0==e.length||e[e.length-
+1][0]!=DIFF_EQUAL?(e.push([DIFF_EQUAL,c]),d.length1+=b,d.length2+=b):b>e[e.length-1][1].length&&(f=b-e[e.length-1][1].length,e[e.length-1][1]+=c.substring(0,f),d.length1+=f,d.length2+=f);return c};
+diff_match_patch.prototype.patch_splitMax=function(a){for(var b=this.Match_MaxBits,c=0;c<a.length;c++)if(!(a[c].length1<=b)){var d=a[c];a.splice(c--,1);for(var e=d.start1,f=d.start2,g="";0!==d.diffs.length;){var h=new diff_match_patch.patch_obj,l=!0;h.start1=e-g.length;h.start2=f-g.length;""!==g&&(h.length1=h.length2=g.length,h.diffs.push([DIFF_EQUAL,g]));for(;0!==d.diffs.length&&h.length1<b-this.Patch_Margin;){g=d.diffs[0][0];var k=d.diffs[0][1];g===DIFF_INSERT?(h.length2+=k.length,f+=k.length,h.diffs.push(d.diffs.shift()),
+l=!1):g===DIFF_DELETE&&1==h.diffs.length&&h.diffs[0][0]==DIFF_EQUAL&&k.length>2*b?(h.length1+=k.length,e+=k.length,l=!1,h.diffs.push([g,k]),d.diffs.shift()):(k=k.substring(0,b-h.length1-this.Patch_Margin),h.length1+=k.length,e+=k.length,g===DIFF_EQUAL?(h.length2+=k.length,f+=k.length):l=!1,h.diffs.push([g,k]),k==d.diffs[0][1]?d.diffs.shift():d.diffs[0][1]=d.diffs[0][1].substring(k.length))}g=this.diff_text2(h.diffs);g=g.substring(g.length-this.Patch_Margin);k=this.diff_text1(d.diffs).substring(0,
+this.Patch_Margin);""!==k&&(h.length1+=k.length,h.length2+=k.length,0!==h.diffs.length&&h.diffs[h.diffs.length-1][0]===DIFF_EQUAL?h.diffs[h.diffs.length-1][1]+=k:h.diffs.push([DIFF_EQUAL,k]));l||a.splice(++c,0,h)}}};diff_match_patch.prototype.patch_toText=function(a){for(var b=[],c=0;c<a.length;c++)b[c]=a[c];return b.join("")};
+diff_match_patch.prototype.patch_fromText=function(a){var b=[];if(!a)return b;a=a.split("\n");for(var c=0,d=/^@@ -(\d+),?(\d*) \+(\d+),?(\d*) @@$/;c<a.length;){var e=a[c].match(d);if(!e)throw Error("Invalid patch string: "+a[c]);var f=new diff_match_patch.patch_obj;b.push(f);f.start1=parseInt(e[1],10);""===e[2]?(f.start1--,f.length1=1):"0"==e[2]?f.length1=0:(f.start1--,f.length1=parseInt(e[2],10));f.start2=parseInt(e[3],10);""===e[4]?(f.start2--,f.length2=1):"0"==e[4]?f.length2=0:(f.start2--,f.length2=
+parseInt(e[4],10));for(c++;c<a.length;){e=a[c].charAt(0);try{var g=decodeURI(a[c].substring(1))}catch(h){throw Error("Illegal escape in patch_fromText: "+g);}if("-"==e)f.diffs.push([DIFF_DELETE,g]);else if("+"==e)f.diffs.push([DIFF_INSERT,g]);else if(" "==e)f.diffs.push([DIFF_EQUAL,g]);else if("@"==e)break;else if(""!==e)throw Error('Invalid patch mode "'+e+'" in: '+g);c++}}return b};diff_match_patch.patch_obj=function(){this.diffs=[];this.start2=this.start1=null;this.length2=this.length1=0};
+diff_match_patch.patch_obj.prototype.toString=function(){for(var a=["@@ -"+(0===this.length1?this.start1+",0":1==this.length1?this.start1+1:this.start1+1+","+this.length1)+" +"+(0===this.length2?this.start2+",0":1==this.length2?this.start2+1:this.start2+1+","+this.length2)+" @@\n"],b,c=0;c<this.diffs.length;c++){switch(this.diffs[c][0]){case DIFF_INSERT:b="+";break;case DIFF_DELETE:b="-";break;case DIFF_EQUAL:b=" "}a[c+1]=b+encodeURI(this.diffs[c][1])+"\n"}return a.join("").replace(/%20/g," ")};
+this.diff_match_patch=diff_match_patch;this.DIFF_DELETE=DIFF_DELETE;this.DIFF_INSERT=DIFF_INSERT;this.DIFF_EQUAL=DIFF_EQUAL;

core/modules/utils/diff-match-patch/tiddlywiki.files

@@ -0,0 +1,14 @@
+{
+	"tiddlers": [
+		{
+			"file": "diff_match_patch.js",
+			"fields": {
+				"type": "application/javascript",
+				"title": "$:/core/modules/utils/diff-match-patch/diff_match_patch.js",
+				"module-type": "library"
+			},
+			"prefix": "(function(){",
+			"suffix": "}).call(exports);"
+		}
+	]
+}