You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@corinthia.apache.org by ja...@apache.org on 2015/08/17 10:50:19 UTC
[27/28] incubator-corinthia git commit: included MOC compiler for Qt
implementation
http://git-wip-us.apache.org/repos/asf/incubator-corinthia/blob/9bf02bb2/experiments/editorFramework/src/API_Layer_2/Layer2_interface.h
----------------------------------------------------------------------
diff --git a/experiments/editorFramework/src/API_Layer_2/Layer2_interface.h b/experiments/editorFramework/src/API_Layer_2/Layer2_interface.h
new file mode 100644
index 0000000..042a1a7
--- /dev/null
+++ b/experiments/editorFramework/src/API_Layer_2/Layer2_interface.h
@@ -0,0 +1,480 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements. See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership. The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License. You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied. See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+#pragma once
+
+#include <QString>
+#include <QRect>
+#include <QJsonObject>
+#include <QJsonArray>
+#include <QTextStream>
+
+/**
+ * \file JSInterface.h
+ *
+ * C++ interface to the JavaScript editor library
+ *
+ * All of the core editing operations for Corinthia are implemented in the Editor library, which is
+ * written in JavaScript. This library can be used either from within a web browser, or, in the case
+ * of the Qt application, from an embedded web view. For this app, we use a QWebView instance which
+ * maintains the in-memory DOM tree of the document, and has injected into it all of the javascript
+ * code that is part of the editor library.
+ *
+ * The source code of the Editor library lives in (repository-root)/Editor/src. During build of the
+ * Qt app, all the javascript files are copied into (build-dir)/share/corinthia/js. If you wish to
+ * make changes to the javascript code, you should modify the files in the former location, as the
+ * latter files will be overwritten on every build.
+ *
+ * The purpose of JSInterface.h and JSInterface.cpp is to provide a C++ wrapper over this. All of
+ * the methods defined in the classes below (with the exception of callbacks) ultimately result in a
+ * call to QWebFrame's evaluateJavaScript() method. See the documentation for JSInterface.cpp for
+ * details.
+ *
+ * The editor library is divided into *modules*, each of which implements a specific aspect of
+ * editing functionality. For example, the Cursor module contains methods for moving the cursor
+ * around the document, and inserting or deleting text at the current cursor position. Similarly,
+ * the Tables module contains methods for inserting, deleting, and modifying tables. A separate C++
+ * class is defined for each module, and an instance of each class is maintained by the "container"
+ * class, JSInterface. When using the code here, you should do so via a JSInterface instance.
+ */
+
+#define JS_MODULE_COMMON(className) \
+Q_DISABLE_COPY(className) \
+public: \
+className(JSEvaluator *evaluator) : JSModule(evaluator) {}
+
+QTextStream& qStdOut();
+QString QRectString(QRect rect);
+
+/**
+ * Callback interface
+ *
+ * While the module classes are for making calls from C++ to JavaScript, the JSCallbacks abstract
+ * class is for responding to requests from JavaScript to invoke C++ code. This is declared here as
+ * an abstract class (that is, with all methods virtual and no implementations provided) to avoid
+ * dependencies between the code in this file and other parts of the application. The
+ * EditorJSCallbacks class in Editor.cpp provides a concrete implementation of this, which is where
+ * the actual callback functions are implemented.
+ *
+ * Callbacks are always invoked *after* the execution of a particular editor library API function,
+ * not during. The reason for this design design in the library was to enable support for web view
+ * classes that did not provide native support for callbacks (as was the case for iOS, at least at
+ * the time the library was originally written).
+ *
+ * The way that callbacks are invoked is that after each editor API call, a query is performed for a
+ * list of pending callback messages. The evaluation logic iterates through these and invokes the
+ * appropriate callback method for each. For this reason, callbacks method are all 'void' - they
+ * never return a value. Callbacks are for notification purposes only - typically telling the
+ * application to update the UI in some manner.
+ */
+class JSCallbacks
+{
+public:
+ virtual ~JSCallbacks() {}
+ virtual void debug(const QString &message) = 0;
+ virtual void addOutlineItem(const QString &itemId, const QString &type, const QString &title) = 0;
+ virtual void updateOutlineItem(const QString &itemId, const QString &title) = 0;
+ virtual void removeOutlineItem(const QString &itemId) = 0;
+ virtual void outlineUpdated() = 0;
+ virtual void setCursor(int x, int y, int width, int height) = 0;
+ virtual void setSelectionHandles(int x1, int y1, int height1, int x2, int y2, int height2) = 0;
+ virtual void setTableSelection(int x, int y, int width, int height) = 0;
+ virtual void setSelectionBounds(int left, int top, int right, int bottom) = 0;
+ virtual void clearSelectionHandlesAndCursor() = 0;
+ virtual void updateAutoCorrect() = 0;
+ virtual void error(const QString &message, const QString &operation) = 0;
+};
+
+/**
+ * The JSEvaluator abstract class provides an evaluate() method which is called (indirectly) by all
+ * of the individual module methods. As with JSCallbacks, it is defined as abstract to avoid a
+ * dependency on the code outside of this file. The EditorJSEvaluator class in Editor.cpp provides a
+ * concrete implementation of this; its evaluate() method simply calls through to the
+ * evaluateJavaScript() method of QWebView.
+ *
+ * JSEvaluator also has a callbacks() method, which must return an instance of JSCallbacks. This
+ * makes JSEvaluator the "central point of contact" between the JavaScript interface and the rest of
+ * the application, in that it provides the necessary access to call *in* to javascript, and to
+ * respond (via callbacks) to calls *out* of javascript. Upon initialisation of a document window,
+ * concrete implementations of both JSCallbacks and JSEvaluator are created, the latter maintaining
+ * a reference to the former. See Editor::Editor() for where ths is actually done.
+ */
+class JSEvaluator
+{
+public:
+ virtual ~JSEvaluator() {}
+ virtual QString evaluate(const QString &script) = 0;
+ virtual JSCallbacks *callbacks() = 0;
+};
+
+class JSAutoCorrect;
+class JSChangeTracking;
+class JSClipboard;
+class JSCursor;
+class JSEquations;
+class JSFigures;
+class JSFormatting;
+class JSInput;
+class JSLists;
+class JSMain;
+class JSMetadata;
+class JSOutline;
+class JSPreview;
+class JSScan;
+class JSSelection;
+class JSStyles;
+class JSTables;
+class JSUndoManager;
+class JSViewport;
+class EDScanParagraph;
+
+class JSError
+{
+public:
+ const QString &type() { return _type; }
+ const QString &message() { return _message; }
+ const QString &operation() { return _operation; }
+ const QString &html() { return _html; }
+
+private:
+
+ QString _type;
+ QString _message;
+ QString _operation;
+ QString _html;
+};
+
+class JSModule
+{
+ Q_DISABLE_COPY(JSModule)
+public:
+ JSModule(JSEvaluator *evaluator) : _evaluator(evaluator) {};
+protected:
+ JSEvaluator *_evaluator;
+};
+
+// Functions implemented in AutoCorrect.js
+
+class JSAutoCorrect : public JSModule
+{
+ JS_MODULE_COMMON(JSAutoCorrect)
+ void correctPrecedingWord(int numChars, const QString &replacement, bool confirmed);
+ QJsonObject getCorrection();
+ QJsonObject getCorrectionCoords();
+ void acceptCorrection();
+ void replaceCorrection(const QString &replacement);
+};
+
+// Functions implemented in ChangeTracking.js
+
+class JSChangeTracking : public JSModule
+{
+ JS_MODULE_COMMON(JSChangeTracking)
+ bool showChanges();
+ bool trackChanges();
+ void setShowChanges(bool showChanges);
+ void setTrackChanges(bool trackChanges);
+};
+
+// Functions implemented in Clipboard.js
+
+class JSClipboard : public JSModule
+{
+ JS_MODULE_COMMON(JSClipboard)
+ QJsonObject clipboardCut();
+ QJsonObject clipboardCopy();
+ void pasteHTML(const QString &html);
+ void pasteText(const QString &text);
+};
+
+// Functions implemented in Cursor.js
+
+class JSCursor : public JSModule
+{
+ JS_MODULE_COMMON(JSCursor)
+ QString positionCursor(int x, int y, bool wordBoundary);
+ QRect getCursorPosition();
+ void moveLeft();
+ void moveRight();
+ void moveToStartOfDocument();
+ void moveToEndOfDocument();
+ void insertReference(const QString &itemId);
+ void insertLink(const QString &text, const QString &url);
+ void insertCharacter(unsigned short character, bool allowInvalidPos);
+ void deleteCharacter();
+ void enterPressed();
+ QString getPrecedingWord();
+ QJsonObject getLinkProperties();
+ void setLinkProperties(QJsonObject properties);
+ void setReferenceTarget(const QString &itemId);
+ void insertFootnote(const QString &content);
+ void insertEndnote(const QString &content);
+};
+
+// Functions implemented in Equations.js
+
+class JSEquations : public JSModule
+{
+ JS_MODULE_COMMON(JSEquations)
+ void insertEquation();
+};
+
+// Functions implemented in Figures.js
+
+class JSFigures : public JSModule
+{
+ JS_MODULE_COMMON(JSFigures)
+ void insertFigure(const QString &filename, const QString &width,
+ bool numbered, const QString &caption);
+ QString getSelectedFigureId();
+ QJsonObject getProperties(const QString &itemId);
+ void setProperties(const QString &itemId, const QString &width, const QString &src);
+ QJsonObject getGeometry(const QString &itemId);
+};
+
+// Functions implemented in Formatting.js
+
+class JSFormatting : public JSModule
+{
+ JS_MODULE_COMMON(JSFormatting)
+ QJsonObject getFormatting();
+ void applyFormattingChanges(const QString &style, QJsonObject properties);
+};
+
+// Functions implemented in Input.js
+
+class JSInput : public JSModule
+{
+ JS_MODULE_COMMON(JSInput)
+ void removePosition(int posId);
+
+ QString textInRange(int startId, int startAdjust, int endId, int endAdjust);
+ void replaceRange(int startId, int endId, const QString &text);
+ QJsonObject selectedTextRange();
+ void setSelectedTextRange(int startId, int endId);
+ QJsonObject markedTextRange();
+ void setMarkedText(const QString &text, int startOffset, int endOffset);
+ void unmarkText();
+ bool forwardSelectionAffinity();
+ void setForwardSelectionAffinity(bool forwardSelectionAffinity);
+ int positionFromPositionOffset(int posId, int offset);
+ int positionFromPositionInDirectionOffset(int posId, const QString &direction, int offset);
+ int comparePositionToPosition(int positionId, int otherId);
+ int offsetFromPositionToPosition(int fromPosition, int toPosition);
+ int positionWithinRangeFarthestInDirection(int startId, int endId, const QString &direction);
+ QJsonObject characterRangeByExtendingPositionInDirection(int positionId, const QString &direction);
+ QJsonObject firstRectForRange(int startId, int endId);
+ QJsonObject caretRectForPosition(int posId);
+ int closestPositionToPoint(int x, int y);
+ int closestPositionToPointWithinRange(int x, int y, int startId, int endId);
+ QJsonObject characterRangeAtPoint(int x, int y);
+ int positionWithinRangeAtCharacterOffset(int startId, int endId, int offset);
+ int characterOffsetOfPositionWithinRange(int positionId, int startId, int endId);
+
+ bool isPositionAtBoundaryGranularityInDirection(int posId, const QString &granularity,
+ const QString &direction);
+ bool isPositionWithinTextUnitInDirection(int posId, const QString &granularity,
+ const QString &direction);
+ int positionFromPositionToBoundaryInDirection(int posId, const QString &granularity,
+ const QString &direction);
+ QJsonObject rangeEnclosingPositionWithGranularityInDirection(int posId,
+ const QString &granularity,
+ const QString &direction);
+};
+
+// Functions implemented in Lists.js
+
+class JSLists : public JSModule
+{
+ JS_MODULE_COMMON(JSLists)
+ void increaseIndent();
+ void decreaseIndent();
+ void clearList();
+ void setUnorderedList();
+ void setOrderedList();
+};
+
+// Functions implemented in Main.js
+
+class JSMain : public JSModule
+{
+ JS_MODULE_COMMON(JSMain)
+ QString getLanguage();
+ void setLanguage(const QString &language);
+ QString setGenerator(const QString &generator);
+ bool prepareForSave();
+ QString getHTML();
+ bool isEmptyDocument();
+};
+
+// Functions implemented in Metadata.js
+
+class JSMetadata : public JSModule
+{
+ JS_MODULE_COMMON(JSMetadata)
+ QJsonObject getMetadata();
+ void setMetadata(const QJsonObject &metadata);
+};
+
+// Functions implemented in Outline.js
+
+class JSOutline : public JSModule
+{
+ JS_MODULE_COMMON(JSOutline)
+ QJsonObject getOutline();
+ void moveSection(const QString §ionId, const QString &parentId, const QString &nextId);
+ void deleteItem(const QString &itemId);
+ void goToItem(const QString &itemId);
+ void scheduleUpdateStructure();
+ void setNumbered(const QString &itemId, bool numbered);
+ void setTitle(const QString &itemId, const QString &title);
+ void insertTableOfContents();
+ void insertListOfFigures();
+ void insertListOfTables();
+ void setPrintMode(bool printMode);
+ QJsonObject examinePrintLayout(int pageHeight);
+ bool detectSectionNumbering();
+ QJsonObject findUsedStyles();
+};
+
+// Functions implemented in Preview.js
+
+class JSPreview : public JSModule
+{
+ JS_MODULE_COMMON(JSPreview)
+ void showForStyle(const QString &styleId, const QString &uiName, const QString &title);
+};
+
+// Functions implemented in Scan.js
+
+class JSScan : public JSModule
+{
+ JS_MODULE_COMMON(JSScan)
+ void reset();
+ EDScanParagraph *next();
+ int addMatch(int start, int end);
+ void showMatch(int matchId);
+ void replaceMatch(int matchId, const QString &text);
+ void removeMatch(int matchId);
+ void goToMatch(int matchId);
+};
+
+// Functions implemented in Selection.js
+
+class JSSelection : public JSModule
+{
+ JS_MODULE_COMMON(JSSelection)
+ void update();
+ void selectAll();
+ void selectParagraph();
+ void selectWordAtCursor();
+ QString dragSelectionBegin(int x, int y, bool selectWord);
+ QString dragSelectionUpdate(int x, int y, bool selectWord);
+ QString moveStartLeft();
+ QString moveStartRight();
+ QString moveEndLeft();
+ QString moveEndRight();
+ void setSelectionStartAtCoords(int x, int y);
+ void setSelectionEndAtCoords(int x, int y);
+ void setTableSelectionEdgeAtCoords(const QString &edge, int x, int y);
+ void print();
+};
+
+// Functions implemented in Styles.js
+
+class JSStyles : public JSModule
+{
+ JS_MODULE_COMMON(JSStyles)
+ QString getCSSText();
+ void setCSSText(const QString &cssText, const QJsonObject &rules);
+ QString paragraphClass();
+ void setParagraphClass(const QString ¶graphClass);
+};
+
+// Functions implemented in Tables.js
+
+class JSTables : public JSModule
+{
+ JS_MODULE_COMMON(JSTables)
+ void insertTable(int rows, int cols, const QString &width, bool numbered,
+ const QString &caption, const QString &className);
+ void addAdjacentRow();
+ void addAdjacentColumn();
+ void removeAdjacentRow();
+ void removeAdjacentColumn();
+ void clearCells();
+ void mergeCells();
+ void splitSelection();
+ QString getSelectedTableId();
+ QJsonObject getProperties(const QString &itemId);
+ void setProperties(const QString &itemId, const QString &width);
+ void setColWidths(const QString &itemId, const QJsonArray &colWidths);
+ QJsonObject getGeometry(const QString &itemId);
+};
+
+// Functions implemented in UndoManager.js
+
+class JSUndoManager : public JSModule
+{
+ JS_MODULE_COMMON(JSUndoManager)
+ int getLength();
+ int getIndex();
+ void setIndex(int index);
+ void undo();
+ void redo();
+ void newGroup(const QString &name);
+ QString groupType();
+};
+
+// Functions implemented in Viewport.js
+
+class JSViewport : public JSModule
+{
+ JS_MODULE_COMMON(JSViewport)
+ void setViewportWidth(int width);
+ void setTextScale(int textScale);
+};
+
+// All modules
+
+class JSInterface
+{
+ Q_DISABLE_COPY(JSInterface)
+public:
+ JSInterface(JSEvaluator *evaluator);
+ JSAutoCorrect autoCorrect;
+ JSChangeTracking changeTracking;
+ JSClipboard clipboard;
+ JSCursor cursor;
+ JSEquations equations;
+ JSFigures figures;
+ JSFormatting formatting;
+ JSInput input;
+ JSLists lists;
+ JSMain main;
+ JSMetadata metadata;
+ JSOutline outline;
+ JSPreview preview;
+ JSScan scan;
+ JSSelection selection;
+ JSStyles styles;
+ JSTables tables;
+ JSUndoManager undoManager;
+ JSViewport viewport;
+};
+
+void processCallbacks(JSEvaluator *evaluator);
http://git-wip-us.apache.org/repos/asf/incubator-corinthia/blob/9bf02bb2/experiments/editorFramework/src/API_Layer_2/README
----------------------------------------------------------------------
diff --git a/experiments/editorFramework/src/API_Layer_2/README b/experiments/editorFramework/src/API_Layer_2/README
new file mode 100644
index 0000000..35baea8
--- /dev/null
+++ b/experiments/editorFramework/src/API_Layer_2/README
@@ -0,0 +1 @@
+The API will center around the current javascript
http://git-wip-us.apache.org/repos/asf/incubator-corinthia/blob/9bf02bb2/experiments/editorFramework/src/Docformat_Layer_4/README
----------------------------------------------------------------------
diff --git a/experiments/editorFramework/src/Docformat_Layer_4/README b/experiments/editorFramework/src/Docformat_Layer_4/README
new file mode 100644
index 0000000..df39b72
--- /dev/null
+++ b/experiments/editorFramework/src/Docformat_Layer_4/README
@@ -0,0 +1 @@
+Connection to the DocFormat library
http://git-wip-us.apache.org/repos/asf/incubator-corinthia/blob/9bf02bb2/experiments/editorFramework/src/Handling_Layer_3/README
----------------------------------------------------------------------
diff --git a/experiments/editorFramework/src/Handling_Layer_3/README b/experiments/editorFramework/src/Handling_Layer_3/README
new file mode 100644
index 0000000..b2451f3
--- /dev/null
+++ b/experiments/editorFramework/src/Handling_Layer_3/README
@@ -0,0 +1 @@
+handling is independent of the actual graphic representation.
http://git-wip-us.apache.org/repos/asf/incubator-corinthia/blob/9bf02bb2/experiments/editorFramework/src/Javascript_Layer_0/3rdparty/showdown/license.txt
----------------------------------------------------------------------
diff --git a/experiments/editorFramework/src/Javascript_Layer_0/3rdparty/showdown/license.txt b/experiments/editorFramework/src/Javascript_Layer_0/3rdparty/showdown/license.txt
new file mode 100644
index 0000000..e9c8672
--- /dev/null
+++ b/experiments/editorFramework/src/Javascript_Layer_0/3rdparty/showdown/license.txt
@@ -0,0 +1,34 @@
+Copyright (c) 2007, John Fraser
+<http://www.attacklab.net/>
+All rights reserved.
+
+Original Markdown copyright (c) 2004, John Gruber
+<http://daringfireball.net/>
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+* Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+
+* Neither the name "Markdown" nor the names of its contributors may
+ be used to endorse or promote products derived from this software
+ without specific prior written permission.
+
+This software is provided by the copyright holders and contributors "as
+is" and any express or implied warranties, including, but not limited
+to, the implied warranties of merchantability and fitness for a
+particular purpose are disclaimed. In no event shall the copyright owner
+or contributors be liable for any direct, indirect, incidental, special,
+exemplary, or consequential damages (including, but not limited to,
+procurement of substitute goods or services; loss of use, data, or
+profits; or business interruption) however caused and on any theory of
+liability, whether in contract, strict liability, or tort (including
+negligence or otherwise) arising in any way out of the use of this
+software, even if advised of the possibility of such damage.
http://git-wip-us.apache.org/repos/asf/incubator-corinthia/blob/9bf02bb2/experiments/editorFramework/src/Javascript_Layer_0/3rdparty/showdown/showdown.js
----------------------------------------------------------------------
diff --git a/experiments/editorFramework/src/Javascript_Layer_0/3rdparty/showdown/showdown.js b/experiments/editorFramework/src/Javascript_Layer_0/3rdparty/showdown/showdown.js
new file mode 100644
index 0000000..734dabb
--- /dev/null
+++ b/experiments/editorFramework/src/Javascript_Layer_0/3rdparty/showdown/showdown.js
@@ -0,0 +1,1302 @@
+//
+// showdown.js -- A javascript port of Markdown.
+//
+// Copyright (c) 2007 John Fraser.
+//
+// Original Markdown Copyright (c) 2004-2005 John Gruber
+// <http://daringfireball.net/projects/markdown/>
+//
+// Redistributable under a BSD-style open source license.
+// See license.txt for more information.
+//
+// The full source distribution is at:
+//
+// A A L
+// T C A
+// T K B
+//
+// <http://www.attacklab.net/>
+//
+
+//
+// Wherever possible, Showdown is a straight, line-by-line port
+// of the Perl version of Markdown.
+//
+// This is not a normal parser design; it's basically just a
+// series of string substitutions. It's hard to read and
+// maintain this way, but keeping Showdown close to the original
+// design makes it easier to port new features.
+//
+// More importantly, Showdown behaves like markdown.pl in most
+// edge cases. So web applications can do client-side preview
+// in Javascript, and then build identical HTML on the server.
+//
+// This port needs the new RegExp functionality of ECMA 262,
+// 3rd Edition (i.e. Javascript 1.5). Most modern web browsers
+// should do fine. Even with the new regular expression features,
+// We do a lot of work to emulate Perl's regex functionality.
+// The tricky changes in this file mostly have the "attacklab:"
+// label. Major or self-explanatory changes don't.
+//
+// Smart diff tools like Araxis Merge will be able to match up
+// this file with markdown.pl in a useful way. A little tweaking
+// helps: in a copy of markdown.pl, replace "#" with "//" and
+// replace "$text" with "text". Be sure to ignore whitespace
+// and line endings.
+//
+
+
+//
+// Showdown usage:
+//
+// var text = "Markdown *rocks*.";
+//
+// var converter = new Showdown.converter();
+// var html = converter.makeHtml(text);
+//
+// alert(html);
+//
+// Note: move the sample code to the bottom of this
+// file before uncommenting it.
+//
+
+
+//
+// Showdown namespace
+//
+var Showdown = {};
+
+//
+// converter
+//
+// Wraps all "globals" so that the only thing
+// exposed is makeHtml().
+//
+Showdown.converter = function() {
+
+//
+// Globals:
+//
+
+// Global hashes, used by various utility routines
+var g_urls;
+var g_titles;
+var g_html_blocks;
+
+// Used to track when we're inside an ordered or unordered list
+// (see _ProcessListItems() for details):
+var g_list_level = 0;
+
+
+this.makeHtml = function(text) {
+//
+// Main function. The order in which other subs are called here is
+// essential. Link and image substitutions need to happen before
+// _EscapeSpecialCharsWithinTagAttributes(), so that any *'s or _'s in the <a>
+// and <img> tags get encoded.
+//
+
+ // Clear the global hashes. If we don't clear these, you get conflicts
+ // from other articles when generating a page which contains more than
+ // one article (e.g. an index page that shows the N most recent
+ // articles):
+ g_urls = new Array();
+ g_titles = new Array();
+ g_html_blocks = new Array();
+
+ // attacklab: Replace ~ with ~T
+ // This lets us use tilde as an escape char to avoid md5 hashes
+ // The choice of character is arbitray; anything that isn't
+ // magic in Markdown will work.
+ text = text.replace(/~/g,"~T");
+
+ // attacklab: Replace $ with ~D
+ // RegExp interprets $ as a special character
+ // when it's in a replacement string
+ text = text.replace(/\$/g,"~D");
+
+ // Standardize line endings
+ text = text.replace(/\r\n/g,"\n"); // DOS to Unix
+ text = text.replace(/\r/g,"\n"); // Mac to Unix
+
+ // Make sure text begins and ends with a couple of newlines:
+ text = "\n\n" + text + "\n\n";
+
+ // Convert all tabs to spaces.
+ text = _Detab(text);
+
+ // Strip any lines consisting only of spaces and tabs.
+ // This makes subsequent regexen easier to write, because we can
+ // match consecutive blank lines with /\n+/ instead of something
+ // contorted like /[ \t]*\n+/ .
+ text = text.replace(/^[ \t]+$/mg,"");
+
+ // Turn block-level HTML blocks into hash entries
+ text = _HashHTMLBlocks(text);
+
+ // Strip link definitions, store in hashes.
+ text = _StripLinkDefinitions(text);
+
+ text = _RunBlockGamut(text);
+
+ text = _UnescapeSpecialChars(text);
+
+ // attacklab: Restore dollar signs
+ text = text.replace(/~D/g,"$$");
+
+ // attacklab: Restore tildes
+ text = text.replace(/~T/g,"~");
+
+ return text;
+}
+
+
+var _StripLinkDefinitions = function(text) {
+//
+// Strips link definitions from text, stores the URLs and titles in
+// hash references.
+//
+
+ // Link defs are in the form: ^[id]: url "optional title"
+
+ /*
+ var text = text.replace(/
+ ^[ ]{0,3}\[(.+)\]: // id = $1 attacklab: g_tab_width - 1
+ [ \t]*
+ \n? // maybe *one* newline
+ [ \t]*
+ <?(\S+?)>? // url = $2
+ [ \t]*
+ \n? // maybe one newline
+ [ \t]*
+ (?:
+ (\n*) // any lines skipped = $3 attacklab: lookbehind removed
+ ["(]
+ (.+?) // title = $4
+ [")]
+ [ \t]*
+ )? // title is optional
+ (?:\n+|$)
+ /gm,
+ function(){...});
+ */
+ var text = text.replace(/^[ ]{0,3}\[(.+)\]:[ \t]*\n?[ \t]*<?(\S+?)>?[ \t]*\n?[ \t]*(?:(\n*)["(](.+?)[")][ \t]*)?(?:\n+|\Z)/gm,
+ function (wholeMatch,m1,m2,m3,m4) {
+ m1 = m1.toLowerCase();
+ g_urls[m1] = _EncodeAmpsAndAngles(m2); // Link IDs are case-insensitive
+ if (m3) {
+ // Oops, found blank lines, so it's not a title.
+ // Put back the parenthetical statement we stole.
+ return m3+m4;
+ } else if (m4) {
+ g_titles[m1] = m4.replace(/"/g,""");
+ }
+
+ // Completely remove the definition from the text
+ return "";
+ }
+ );
+
+ return text;
+}
+
+
+var _HashHTMLBlocks = function(text) {
+ // attacklab: Double up blank lines to reduce lookaround
+ text = text.replace(/\n/g,"\n\n");
+
+ // Hashify HTML blocks:
+ // We only want to do this for block-level HTML tags, such as headers,
+ // lists, and tables. That's because we still want to wrap <p>s around
+ // "paragraphs" that are wrapped in non-block-level tags, such as anchors,
+ // phrase emphasis, and spans. The list of tags we're looking for is
+ // hard-coded:
+ var block_tags_a = "p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math|ins|del"
+ var block_tags_b = "p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math"
+
+ // First, look for nested blocks, e.g.:
+ // <div>
+ // <div>
+ // tags for inner block must be indented.
+ // </div>
+ // </div>
+ //
+ // The outermost tags must start at the left margin for this to match, and
+ // the inner nested divs must be indented.
+ // We need to do this before the next, more liberal match, because the next
+ // match will start at the first `<div>` and stop at the first `</div>`.
+
+ // attacklab: This regex can be expensive when it fails.
+ /*
+ var text = text.replace(/
+ ( // save in $1
+ ^ // start of line (with /m)
+ <($block_tags_a) // start tag = $2
+ \b // word break
+ // attacklab: hack around khtml/pcre bug...
+ [^\r]*?\n // any number of lines, minimally matching
+ </\2> // the matching end tag
+ [ \t]* // trailing spaces/tabs
+ (?=\n+) // followed by a newline
+ ) // attacklab: there are sentinel newlines at end of document
+ /gm,function(){...}};
+ */
+ text = text.replace(/^(<(p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math|ins|del)\b[^\r]*?\n<\/\2>[ \t]*(?=\n+))/gm,hashElement);
+
+ //
+ // Now match more liberally, simply from `\n<tag>` to `</tag>\n`
+ //
+
+ /*
+ var text = text.replace(/
+ ( // save in $1
+ ^ // start of line (with /m)
+ <($block_tags_b) // start tag = $2
+ \b // word break
+ // attacklab: hack around khtml/pcre bug...
+ [^\r]*? // any number of lines, minimally matching
+ .*</\2> // the matching end tag
+ [ \t]* // trailing spaces/tabs
+ (?=\n+) // followed by a newline
+ ) // attacklab: there are sentinel newlines at end of document
+ /gm,function(){...}};
+ */
+ text = text.replace(/^(<(p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math)\b[^\r]*?.*<\/\2>[ \t]*(?=\n+)\n)/gm,hashElement);
+
+ // Special case just for <hr />. It was easier to make a special case than
+ // to make the other regex more complicated.
+
+ /*
+ text = text.replace(/
+ ( // save in $1
+ \n\n // Starting after a blank line
+ [ ]{0,3}
+ (<(hr) // start tag = $2
+ \b // word break
+ ([^<>])*? //
+ \/?>) // the matching end tag
+ [ \t]*
+ (?=\n{2,}) // followed by a blank line
+ )
+ /g,hashElement);
+ */
+ text = text.replace(/(\n[ ]{0,3}(<(hr)\b([^<>])*?\/?>)[ \t]*(?=\n{2,}))/g,hashElement);
+
+ // Special case for standalone HTML comments:
+
+ /*
+ text = text.replace(/
+ ( // save in $1
+ \n\n // Starting after a blank line
+ [ ]{0,3} // attacklab: g_tab_width - 1
+ <!
+ (--[^\r]*?--\s*)+
+ >
+ [ \t]*
+ (?=\n{2,}) // followed by a blank line
+ )
+ /g,hashElement);
+ */
+ text = text.replace(/(\n\n[ ]{0,3}<!(--[^\r]*?--\s*)+>[ \t]*(?=\n{2,}))/g,hashElement);
+
+ // PHP and ASP-style processor instructions (<?...?> and <%...%>)
+
+ /*
+ text = text.replace(/
+ (?:
+ \n\n // Starting after a blank line
+ )
+ ( // save in $1
+ [ ]{0,3} // attacklab: g_tab_width - 1
+ (?:
+ <([?%]) // $2
+ [^\r]*?
+ \2>
+ )
+ [ \t]*
+ (?=\n{2,}) // followed by a blank line
+ )
+ /g,hashElement);
+ */
+ text = text.replace(/(?:\n\n)([ ]{0,3}(?:<([?%])[^\r]*?\2>)[ \t]*(?=\n{2,}))/g,hashElement);
+
+ // attacklab: Undo double lines (see comment at top of this function)
+ text = text.replace(/\n\n/g,"\n");
+ return text;
+}
+
+var hashElement = function(wholeMatch,m1) {
+ var blockText = m1;
+
+ // Undo double lines
+ blockText = blockText.replace(/\n\n/g,"\n");
+ blockText = blockText.replace(/^\n/,"");
+
+ // strip trailing blank lines
+ blockText = blockText.replace(/\n+$/g,"");
+
+ // Replace the element text with a marker ("~KxK" where x is its key)
+ blockText = "\n\n~K" + (g_html_blocks.push(blockText)-1) + "K\n\n";
+
+ return blockText;
+};
+
+var _RunBlockGamut = function(text) {
+//
+// These are all the transformations that form block-level
+// tags like paragraphs, headers, and list items.
+//
+ text = _DoHeaders(text);
+
+ // Do Horizontal Rules:
+ var key = hashBlock("<hr />");
+ text = text.replace(/^[ ]{0,2}([ ]?\*[ ]?){3,}[ \t]*$/gm,key);
+ text = text.replace(/^[ ]{0,2}([ ]?\-[ ]?){3,}[ \t]*$/gm,key);
+ text = text.replace(/^[ ]{0,2}([ ]?\_[ ]?){3,}[ \t]*$/gm,key);
+
+ text = _DoLists(text);
+ text = _DoCodeBlocks(text);
+ text = _DoBlockQuotes(text);
+
+ // We already ran _HashHTMLBlocks() before, in Markdown(), but that
+ // was to escape raw HTML in the original Markdown source. This time,
+ // we're escaping the markup we've just created, so that we don't wrap
+ // <p> tags around block-level tags.
+ text = _HashHTMLBlocks(text);
+ text = _FormParagraphs(text);
+
+ return text;
+}
+
+
+var _RunSpanGamut = function(text) {
+//
+// These are all the transformations that occur *within* block-level
+// tags like paragraphs, headers, and list items.
+//
+
+ text = _DoCodeSpans(text);
+ text = _EscapeSpecialCharsWithinTagAttributes(text);
+ text = _EncodeBackslashEscapes(text);
+
+ // Process anchor and image tags. Images must come first,
+ // because ![foo][f] looks like an anchor.
+ text = _DoImages(text);
+ text = _DoAnchors(text);
+
+ // Make links out of things like `<http://example.com/>`
+ // Must come after _DoAnchors(), because you can use < and >
+ // delimiters in inline links like [this](<url>).
+ text = _DoAutoLinks(text);
+ text = _EncodeAmpsAndAngles(text);
+ text = _DoItalicsAndBold(text);
+
+ // Do hard breaks:
+ text = text.replace(/ +\n/g," <br />\n");
+
+ return text;
+}
+
+var _EscapeSpecialCharsWithinTagAttributes = function(text) {
+//
+// Within tags -- meaning between < and > -- encode [\ ` * _] so they
+// don't conflict with their use in Markdown for code, italics and strong.
+//
+
+ // Build a regex to find HTML tags and comments. See Friedl's
+ // "Mastering Regular Expressions", 2nd Ed., pp. 200-201.
+ var regex = /(<[a-z\/!$]("[^"]*"|'[^']*'|[^'">])*>|<!(--.*?--\s*)+>)/gi;
+
+ text = text.replace(regex, function(wholeMatch) {
+ var tag = wholeMatch.replace(/(.)<\/?code>(?=.)/g,"$1`");
+ tag = escapeCharacters(tag,"\\`*_");
+ return tag;
+ });
+
+ return text;
+}
+
+var _DoAnchors = function(text) {
+//
+// Turn Markdown link shortcuts into XHTML <a> tags.
+//
+ //
+ // First, handle reference-style links: [link text] [id]
+ //
+
+ /*
+ text = text.replace(/
+ ( // wrap whole match in $1
+ \[
+ (
+ (?:
+ \[[^\]]*\] // allow brackets nested one level
+ |
+ [^\[] // or anything else
+ )*
+ )
+ \]
+
+ [ ]? // one optional space
+ (?:\n[ ]*)? // one optional newline followed by spaces
+
+ \[
+ (.*?) // id = $3
+ \]
+ )()()()() // pad remaining backreferences
+ /g,_DoAnchors_callback);
+ */
+ text = text.replace(/(\[((?:\[[^\]]*\]|[^\[\]])*)\][ ]?(?:\n[ ]*)?\[(.*?)\])()()()()/g,writeAnchorTag);
+
+ //
+ // Next, inline-style links: [link text](url "optional title")
+ //
+
+ /*
+ text = text.replace(/
+ ( // wrap whole match in $1
+ \[
+ (
+ (?:
+ \[[^\]]*\] // allow brackets nested one level
+ |
+ [^\[\]] // or anything else
+ )
+ )
+ \]
+ \( // literal paren
+ [ \t]*
+ () // no id, so leave $3 empty
+ <?(.*?)>? // href = $4
+ [ \t]*
+ ( // $5
+ (['"]) // quote char = $6
+ (.*?) // Title = $7
+ \6 // matching quote
+ [ \t]* // ignore any spaces/tabs between closing quote and )
+ )? // title is optional
+ \)
+ )
+ /g,writeAnchorTag);
+ */
+ text = text.replace(/(\[((?:\[[^\]]*\]|[^\[\]])*)\]\([ \t]*()<?(.*?)>?[ \t]*((['"])(.*?)\6[ \t]*)?\))/g,writeAnchorTag);
+
+ //
+ // Last, handle reference-style shortcuts: [link text]
+ // These must come last in case you've also got [link test][1]
+ // or [link test](/foo)
+ //
+
+ /*
+ text = text.replace(/
+ ( // wrap whole match in $1
+ \[
+ ([^\[\]]+) // link text = $2; can't contain '[' or ']'
+ \]
+ )()()()()() // pad rest of backreferences
+ /g, writeAnchorTag);
+ */
+ text = text.replace(/(\[([^\[\]]+)\])()()()()()/g, writeAnchorTag);
+
+ return text;
+}
+
+var writeAnchorTag = function(wholeMatch,m1,m2,m3,m4,m5,m6,m7) {
+ if (m7 == undefined) m7 = "";
+ var whole_match = m1;
+ var link_text = m2;
+ var link_id = m3.toLowerCase();
+ var url = m4;
+ var title = m7;
+
+ if (url == "") {
+ if (link_id == "") {
+ // lower-case and turn embedded newlines into spaces
+ link_id = link_text.toLowerCase().replace(/ ?\n/g," ");
+ }
+ url = "#"+link_id;
+
+ if (g_urls[link_id] != undefined) {
+ url = g_urls[link_id];
+ if (g_titles[link_id] != undefined) {
+ title = g_titles[link_id];
+ }
+ }
+ else {
+ if (whole_match.search(/\(\s*\)$/m)>-1) {
+ // Special case for explicit empty url
+ url = "";
+ } else {
+ return whole_match;
+ }
+ }
+ }
+
+ url = escapeCharacters(url,"*_");
+ var result = "<a href=\"" + url + "\"";
+
+ if (title != "") {
+ title = title.replace(/"/g,""");
+ title = escapeCharacters(title,"*_");
+ result += " title=\"" + title + "\"";
+ }
+
+ result += ">" + link_text + "</a>";
+
+ return result;
+}
+
+
+var _DoImages = function(text) {
+//
+// Turn Markdown image shortcuts into <img> tags.
+//
+
+ //
+ // First, handle reference-style labeled images: ![alt text][id]
+ //
+
+ /*
+ text = text.replace(/
+ ( // wrap whole match in $1
+ !\[
+ (.*?) // alt text = $2
+ \]
+
+ [ ]? // one optional space
+ (?:\n[ ]*)? // one optional newline followed by spaces
+
+ \[
+ (.*?) // id = $3
+ \]
+ )()()()() // pad rest of backreferences
+ /g,writeImageTag);
+ */
+ text = text.replace(/(!\[(.*?)\][ ]?(?:\n[ ]*)?\[(.*?)\])()()()()/g,writeImageTag);
+
+ //
+ // Next, handle inline images: 
+ // Don't forget: encode * and _
+
+ /*
+ text = text.replace(/
+ ( // wrap whole match in $1
+ !\[
+ (.*?) // alt text = $2
+ \]
+ \s? // One optional whitespace character
+ \( // literal paren
+ [ \t]*
+ () // no id, so leave $3 empty
+ <?(\S+?)>? // src url = $4
+ [ \t]*
+ ( // $5
+ (['"]) // quote char = $6
+ (.*?) // title = $7
+ \6 // matching quote
+ [ \t]*
+ )? // title is optional
+ \)
+ )
+ /g,writeImageTag);
+ */
+ text = text.replace(/(!\[(.*?)\]\s?\([ \t]*()<?(\S+?)>?[ \t]*((['"])(.*?)\6[ \t]*)?\))/g,writeImageTag);
+
+ return text;
+}
+
+var writeImageTag = function(wholeMatch,m1,m2,m3,m4,m5,m6,m7) {
+ var whole_match = m1;
+ var alt_text = m2;
+ var link_id = m3.toLowerCase();
+ var url = m4;
+ var title = m7;
+
+ if (!title) title = "";
+
+ if (url == "") {
+ if (link_id == "") {
+ // lower-case and turn embedded newlines into spaces
+ link_id = alt_text.toLowerCase().replace(/ ?\n/g," ");
+ }
+ url = "#"+link_id;
+
+ if (g_urls[link_id] != undefined) {
+ url = g_urls[link_id];
+ if (g_titles[link_id] != undefined) {
+ title = g_titles[link_id];
+ }
+ }
+ else {
+ return whole_match;
+ }
+ }
+
+ alt_text = alt_text.replace(/"/g,""");
+ url = escapeCharacters(url,"*_");
+ var result = "<img src=\"" + url + "\" alt=\"" + alt_text + "\"";
+
+ // attacklab: Markdown.pl adds empty title attributes to images.
+ // Replicate this bug.
+
+ //if (title != "") {
+ title = title.replace(/"/g,""");
+ title = escapeCharacters(title,"*_");
+ result += " title=\"" + title + "\"";
+ //}
+
+ result += " />";
+
+ return result;
+}
+
+
+var _DoHeaders = function(text) {
+
+ // Setext-style headers:
+ // Header 1
+ // ========
+ //
+ // Header 2
+ // --------
+ //
+ text = text.replace(/^(.+)[ \t]*\n=+[ \t]*\n+/gm,
+ function(wholeMatch,m1){return hashBlock('<h1 id="' + headerId(m1) + '">' + _RunSpanGamut(m1) + "</h1>");});
+
+ text = text.replace(/^(.+)[ \t]*\n-+[ \t]*\n+/gm,
+ function(matchFound,m1){return hashBlock('<h2 id="' + headerId(m1) + '">' + _RunSpanGamut(m1) + "</h2>");});
+
+ // atx-style headers:
+ // # Header 1
+ // ## Header 2
+ // ## Header 2 with closing hashes ##
+ // ...
+ // ###### Header 6
+ //
+
+ /*
+ text = text.replace(/
+ ^(\#{1,6}) // $1 = string of #'s
+ [ \t]*
+ (.+?) // $2 = Header text
+ [ \t]*
+ \#* // optional closing #'s (not counted)
+ \n+
+ /gm, function() {...});
+ */
+
+ text = text.replace(/^(\#{1,6})[ \t]*(.+?)[ \t]*\#*\n+/gm,
+ function(wholeMatch,m1,m2) {
+ var h_level = m1.length;
+ return hashBlock("<h" + h_level + ' id="' + headerId(m2) + '">' + _RunSpanGamut(m2) + "</h" + h_level + ">");
+ });
+
+ function headerId(m) {
+ return m.replace(/[^\w]/g, '').toLowerCase();
+ }
+ return text;
+}
+
+// This declaration keeps Dojo compressor from outputting garbage:
+var _ProcessListItems;
+
+var _DoLists = function(text) {
+//
+// Form HTML ordered (numbered) and unordered (bulleted) lists.
+//
+
+ // attacklab: add sentinel to hack around khtml/safari bug:
+ // http://bugs.webkit.org/show_bug.cgi?id=11231
+ text += "~0";
+
+ // Re-usable pattern to match any entirel ul or ol list:
+
+ /*
+ var whole_list = /
+ ( // $1 = whole list
+ ( // $2
+ [ ]{0,3} // attacklab: g_tab_width - 1
+ ([*+-]|\d+[.]) // $3 = first list item marker
+ [ \t]+
+ )
+ [^\r]+?
+ ( // $4
+ ~0 // sentinel for workaround; should be $
+ |
+ \n{2,}
+ (?=\S)
+ (?! // Negative lookahead for another list item marker
+ [ \t]*
+ (?:[*+-]|\d+[.])[ \t]+
+ )
+ )
+ )/g
+ */
+ var whole_list = /^(([ ]{0,3}([*+-]|\d+[.])[ \t]+)[^\r]+?(~0|\n{2,}(?=\S)(?![ \t]*(?:[*+-]|\d+[.])[ \t]+)))/gm;
+
+ if (g_list_level) {
+ text = text.replace(whole_list,function(wholeMatch,m1,m2) {
+ var list = m1;
+ var list_type = (m2.search(/[*+-]/g)>-1) ? "ul" : "ol";
+
+ // Turn double returns into triple returns, so that we can make a
+ // paragraph for the last item in a list, if necessary:
+ list = list.replace(/\n{2,}/g,"\n\n\n");;
+ var result = _ProcessListItems(list);
+
+ // Trim any trailing whitespace, to put the closing `</$list_type>`
+ // up on the preceding line, to get it past the current stupid
+ // HTML block parser. This is a hack to work around the terrible
+ // hack that is the HTML block parser.
+ result = result.replace(/\s+$/,"");
+ result = "<"+list_type+">" + result + "</"+list_type+">\n";
+ return result;
+ });
+ } else {
+ whole_list = /(\n\n|^\n?)(([ ]{0,3}([*+-]|\d+[.])[ \t]+)[^\r]+?(~0|\n{2,}(?=\S)(?![ \t]*(?:[*+-]|\d+[.])[ \t]+)))/g;
+ text = text.replace(whole_list,function(wholeMatch,m1,m2,m3) {
+ var runup = m1;
+ var list = m2;
+
+ var list_type = (m3.search(/[*+-]/g)>-1) ? "ul" : "ol";
+ // Turn double returns into triple returns, so that we can make a
+ // paragraph for the last item in a list, if necessary:
+ var list = list.replace(/\n{2,}/g,"\n\n\n");;
+ var result = _ProcessListItems(list);
+ result = runup + "<"+list_type+">\n" + result + "</"+list_type+">\n";
+ return result;
+ });
+ }
+
+ // attacklab: strip sentinel
+ text = text.replace(/~0/,"");
+
+ return text;
+}
+
+_ProcessListItems = function(list_str) {
+//
+// Process the contents of a single ordered or unordered list, splitting it
+// into individual list items.
+//
+ // The $g_list_level global keeps track of when we're inside a list.
+ // Each time we enter a list, we increment it; when we leave a list,
+ // we decrement. If it's zero, we're not in a list anymore.
+ //
+ // We do this because when we're not inside a list, we want to treat
+ // something like this:
+ //
+ // I recommend upgrading to version
+ // 8. Oops, now this line is treated
+ // as a sub-list.
+ //
+ // As a single paragraph, despite the fact that the second line starts
+ // with a digit-period-space sequence.
+ //
+ // Whereas when we're inside a list (or sub-list), that line will be
+ // treated as the start of a sub-list. What a kludge, huh? This is
+ // an aspect of Markdown's syntax that's hard to parse perfectly
+ // without resorting to mind-reading. Perhaps the solution is to
+ // change the syntax rules such that sub-lists must start with a
+ // starting cardinal number; e.g. "1." or "a.".
+
+ g_list_level++;
+
+ // trim trailing blank lines:
+ list_str = list_str.replace(/\n{2,}$/,"\n");
+
+ // attacklab: add sentinel to emulate \z
+ list_str += "~0";
+
+ /*
+ list_str = list_str.replace(/
+ (\n)? // leading line = $1
+ (^[ \t]*) // leading whitespace = $2
+ ([*+-]|\d+[.]) [ \t]+ // list marker = $3
+ ([^\r]+? // list item text = $4
+ (\n{1,2}))
+ (?= \n* (~0 | \2 ([*+-]|\d+[.]) [ \t]+))
+ /gm, function(){...});
+ */
+ list_str = list_str.replace(/(\n)?(^[ \t]*)([*+-]|\d+[.])[ \t]+([^\r]+?(\n{1,2}))(?=\n*(~0|\2([*+-]|\d+[.])[ \t]+))/gm,
+ function(wholeMatch,m1,m2,m3,m4){
+ var item = m4;
+ var leading_line = m1;
+ var leading_space = m2;
+
+ if (leading_line || (item.search(/\n{2,}/)>-1)) {
+ item = _RunBlockGamut(_Outdent(item));
+ }
+ else {
+ // Recursion for sub-lists:
+ item = _DoLists(_Outdent(item));
+ item = item.replace(/\n$/,""); // chomp(item)
+ item = _RunSpanGamut(item);
+ }
+
+ return "<li>" + item + "</li>\n";
+ }
+ );
+
+ // attacklab: strip sentinel
+ list_str = list_str.replace(/~0/g,"");
+
+ g_list_level--;
+ return list_str;
+}
+
+
+var _DoCodeBlocks = function(text) {
+//
+// Process Markdown `<pre><code>` blocks.
+//
+
+ /*
+ text = text.replace(text,
+ /(?:\n\n|^)
+ ( // $1 = the code block -- one or more lines, starting with a space/tab
+ (?:
+ (?:[ ]{4}|\t) // Lines must start with a tab or a tab-width of spaces - attacklab: g_tab_width
+ .*\n+
+ )+
+ )
+ (\n*[ ]{0,3}[^ \t\n]|(?=~0)) // attacklab: g_tab_width
+ /g,function(){...});
+ */
+
+ // attacklab: sentinel workarounds for lack of \A and \Z, safari\khtml bug
+ text += "~0";
+
+ text = text.replace(/(?:\n\n|^)((?:(?:[ ]{4}|\t).*\n+)+)(\n*[ ]{0,3}[^ \t\n]|(?=~0))/g,
+ function(wholeMatch,m1,m2) {
+ var codeblock = m1;
+ var nextChar = m2;
+
+ codeblock = _EncodeCode( _Outdent(codeblock));
+ codeblock = _Detab(codeblock);
+ codeblock = codeblock.replace(/^\n+/g,""); // trim leading newlines
+ codeblock = codeblock.replace(/\n+$/g,""); // trim trailing whitespace
+
+ codeblock = "<pre><code>" + codeblock + "\n</code></pre>";
+
+ return hashBlock(codeblock) + nextChar;
+ }
+ );
+
+ // attacklab: strip sentinel
+ text = text.replace(/~0/,"");
+
+ return text;
+}
+
+var hashBlock = function(text) {
+ text = text.replace(/(^\n+|\n+$)/g,"");
+ return "\n\n~K" + (g_html_blocks.push(text)-1) + "K\n\n";
+}
+
+
+var _DoCodeSpans = function(text) {
+//
+// * Backtick quotes are used for <code></code> spans.
+//
+// * You can use multiple backticks as the delimiters if you want to
+// include literal backticks in the code span. So, this input:
+//
+// Just type ``foo `bar` baz`` at the prompt.
+//
+// Will translate to:
+//
+// <p>Just type <code>foo `bar` baz</code> at the prompt.</p>
+//
+// There's no arbitrary limit to the number of backticks you
+// can use as delimters. If you need three consecutive backticks
+// in your code, use four for delimiters, etc.
+//
+// * You can use spaces to get literal backticks at the edges:
+//
+// ... type `` `bar` `` ...
+//
+// Turns to:
+//
+// ... type <code>`bar`</code> ...
+//
+
+ /*
+ text = text.replace(/
+ (^|[^\\]) // Character before opening ` can't be a backslash
+ (`+) // $2 = Opening run of `
+ ( // $3 = The code block
+ [^\r]*?
+ [^`] // attacklab: work around lack of lookbehind
+ )
+ \2 // Matching closer
+ (?!`)
+ /gm, function(){...});
+ */
+
+ text = text.replace(/(^|[^\\])(`+)([^\r]*?[^`])\2(?!`)/gm,
+ function(wholeMatch,m1,m2,m3,m4) {
+ var c = m3;
+ c = c.replace(/^([ \t]*)/g,""); // leading whitespace
+ c = c.replace(/[ \t]*$/g,""); // trailing whitespace
+ c = _EncodeCode(c);
+ return m1+"<code>"+c+"</code>";
+ });
+
+ return text;
+}
+
+
+var _EncodeCode = function(text) {
+//
+// Encode/escape certain characters inside Markdown code runs.
+// The point is that in code, these characters are literals,
+// and lose their special Markdown meanings.
+//
+ // Encode all ampersands; HTML entities are not
+ // entities within a Markdown code span.
+ text = text.replace(/&/g,"&");
+
+ // Do the angle bracket song and dance:
+ text = text.replace(/</g,"<");
+ text = text.replace(/>/g,">");
+
+ // Now, escape characters that are magic in Markdown:
+ text = escapeCharacters(text,"\*_{}[]\\",false);
+
+// jj the line above breaks this:
+//---
+
+//* Item
+
+// 1. Subitem
+
+// special char: *
+//---
+
+ return text;
+}
+
+
+var _DoItalicsAndBold = function(text) {
+
+ // <strong> must go first:
+ text = text.replace(/(\*\*|__)(?=\S)([^\r]*?\S[*_]*)\1/g,
+ "<strong>$2</strong>");
+
+ text = text.replace(/(\*|_)(?=\S)([^\r]*?\S)\1/g,
+ "<em>$2</em>");
+
+ return text;
+}
+
+
+var _DoBlockQuotes = function(text) {
+
+ /*
+ text = text.replace(/
+ ( // Wrap whole match in $1
+ (
+ ^[ \t]*>[ \t]? // '>' at the start of a line
+ .+\n // rest of the first line
+ (.+\n)* // subsequent consecutive lines
+ \n* // blanks
+ )+
+ )
+ /gm, function(){...});
+ */
+
+ text = text.replace(/((^[ \t]*>[ \t]?.+\n(.+\n)*\n*)+)/gm,
+ function(wholeMatch,m1) {
+ var bq = m1;
+
+ // attacklab: hack around Konqueror 3.5.4 bug:
+ // "----------bug".replace(/^-/g,"") == "bug"
+
+ bq = bq.replace(/^[ \t]*>[ \t]?/gm,"~0"); // trim one level of quoting
+
+ // attacklab: clean up hack
+ bq = bq.replace(/~0/g,"");
+
+ bq = bq.replace(/^[ \t]+$/gm,""); // trim whitespace-only lines
+ bq = _RunBlockGamut(bq); // recurse
+
+ bq = bq.replace(/(^|\n)/g,"$1 ");
+ // These leading spaces screw with <pre> content, so we need to fix that:
+ bq = bq.replace(
+ /(\s*<pre>[^\r]+?<\/pre>)/gm,
+ function(wholeMatch,m1) {
+ var pre = m1;
+ // attacklab: hack around Konqueror 3.5.4 bug:
+ pre = pre.replace(/^ /mg,"~0");
+ pre = pre.replace(/~0/g,"");
+ return pre;
+ });
+
+ return hashBlock("<blockquote>\n" + bq + "\n</blockquote>");
+ });
+ return text;
+}
+
+
+var _FormParagraphs = function(text) {
+//
+// Params:
+// $text - string to process with html <p> tags
+//
+
+ // Strip leading and trailing lines:
+ text = text.replace(/^\n+/g,"");
+ text = text.replace(/\n+$/g,"");
+
+ var grafs = text.split(/\n{2,}/g);
+ var grafsOut = new Array();
+
+ //
+ // Wrap <p> tags.
+ //
+ var end = grafs.length;
+ for (var i=0; i<end; i++) {
+ var str = grafs[i];
+
+ // if this is an HTML marker, copy it
+ if (str.search(/~K(\d+)K/g) >= 0) {
+ grafsOut.push(str);
+ }
+ else if (str.search(/\S/) >= 0) {
+ str = _RunSpanGamut(str);
+ str = str.replace(/^([ \t]*)/g,"<p>");
+ str += "</p>"
+ grafsOut.push(str);
+ }
+
+ }
+
+ //
+ // Unhashify HTML blocks
+ //
+ end = grafsOut.length;
+ for (var i=0; i<end; i++) {
+ // if this is a marker for an html block...
+ while (grafsOut[i].search(/~K(\d+)K/) >= 0) {
+ var blockText = g_html_blocks[RegExp.$1];
+ blockText = blockText.replace(/\$/g,"$$$$"); // Escape any dollar signs
+ grafsOut[i] = grafsOut[i].replace(/~K\d+K/,blockText);
+ }
+ }
+
+ return grafsOut.join("\n\n");
+}
+
+
+var _EncodeAmpsAndAngles = function(text) {
+// Smart processing for ampersands and angle brackets that need to be encoded.
+
+ // Ampersand-encoding based entirely on Nat Irons's Amputator MT plugin:
+ // http://bumppo.net/projects/amputator/
+ text = text.replace(/&(?!#?[xX]?(?:[0-9a-fA-F]+|\w+);)/g,"&");
+
+ // Encode naked <'s
+ text = text.replace(/<(?![a-z\/?\$!])/gi,"<");
+
+ return text;
+}
+
+
+var _EncodeBackslashEscapes = function(text) {
+//
+// Parameter: String.
+// Returns: The string, with after processing the following backslash
+// escape sequences.
+//
+
+ // attacklab: The polite way to do this is with the new
+ // escapeCharacters() function:
+ //
+ // text = escapeCharacters(text,"\\",true);
+ // text = escapeCharacters(text,"`*_{}[]()>#+-.!",true);
+ //
+ // ...but we're sidestepping its use of the (slow) RegExp constructor
+ // as an optimization for Firefox. This function gets called a LOT.
+
+ text = text.replace(/\\(\\)/g,escapeCharacters_callback);
+ text = text.replace(/\\([`*_{}\[\]()>#+-.!])/g,escapeCharacters_callback);
+ return text;
+}
+
+
+var _DoAutoLinks = function(text) {
+
+ text = text.replace(/<((https?|ftp|dict):[^'">\s]+)>/gi,"<a href=\"$1\">$1</a>");
+
+ // Email addresses: <ad...@domain.foo>
+
+ /*
+ text = text.replace(/
+ <
+ (?:mailto:)?
+ (
+ [-.\w]+
+ \@
+ [-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]+
+ )
+ >
+ /gi, _DoAutoLinks_callback());
+ */
+ text = text.replace(/<(?:mailto:)?([-.\w]+\@[-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]+)>/gi,
+ function(wholeMatch,m1) {
+ return _EncodeEmailAddress( _UnescapeSpecialChars(m1) );
+ }
+ );
+
+ return text;
+}
+
+
+var _EncodeEmailAddress = function(addr) {
+//
+// Input: an email address, e.g. "foo@example.com"
+//
+// Output: the email address as a mailto link, with each character
+// of the address encoded as either a decimal or hex entity, in
+// the hopes of foiling most address harvesting spam bots. E.g.:
+//
+// <a href="mailto:foo@e
+// xample.com">foo
+// @example.com</a>
+//
+// Based on a filter by Matthew Wickline, posted to the BBEdit-Talk
+// mailing list: <http://tinyurl.com/yu7ue>
+//
+
+ // attacklab: why can't javascript speak hex?
+ function char2hex(ch) {
+ var hexDigits = '0123456789ABCDEF';
+ var dec = ch.charCodeAt(0);
+ return(hexDigits.charAt(dec>>4) + hexDigits.charAt(dec&15));
+ }
+
+ var encode = [
+ function(ch){return "&#"+ch.charCodeAt(0)+";";},
+ function(ch){return "&#x"+char2hex(ch)+";";},
+ function(ch){return ch;}
+ ];
+
+ addr = "mailto:" + addr;
+
+ addr = addr.replace(/./g, function(ch) {
+ if (ch == "@") {
+ // this *must* be encoded. I insist.
+ ch = encode[Math.floor(Math.random()*2)](ch);
+ } else if (ch !=":") {
+ // leave ':' alone (to spot mailto: later)
+ var r = Math.random();
+ // roughly 10% raw, 45% hex, 45% dec
+ ch = (
+ r > .9 ? encode[2](ch) :
+ r > .45 ? encode[1](ch) :
+ encode[0](ch)
+ );
+ }
+ return ch;
+ });
+
+ addr = "<a href=\"" + addr + "\">" + addr + "</a>";
+ addr = addr.replace(/">.+:/g,"\">"); // strip the mailto: from the visible part
+
+ return addr;
+}
+
+
+var _UnescapeSpecialChars = function(text) {
+//
+// Swap back in all the special characters we've hidden.
+//
+ text = text.replace(/~E(\d+)E/g,
+ function(wholeMatch,m1) {
+ var charCodeToReplace = parseInt(m1);
+ return String.fromCharCode(charCodeToReplace);
+ }
+ );
+ return text;
+}
+
+
+var _Outdent = function(text) {
+//
+// Remove one level of line-leading tabs or spaces
+//
+
+ // attacklab: hack around Konqueror 3.5.4 bug:
+ // "----------bug".replace(/^-/g,"") == "bug"
+
+ text = text.replace(/^(\t|[ ]{1,4})/gm,"~0"); // attacklab: g_tab_width
+
+ // attacklab: clean up hack
+ text = text.replace(/~0/g,"")
+
+ return text;
+}
+
+var _Detab = function(text) {
+// attacklab: Detab's completely rewritten for speed.
+// In perl we could fix it by anchoring the regexp with \G.
+// In javascript we're less fortunate.
+
+ // expand first n-1 tabs
+ text = text.replace(/\t(?=\t)/g," "); // attacklab: g_tab_width
+
+ // replace the nth with two sentinels
+ text = text.replace(/\t/g,"~A~B");
+
+ // use the sentinel to anchor our regex so it doesn't explode
+ text = text.replace(/~B(.+?)~A/g,
+ function(wholeMatch,m1,m2) {
+ var leadingText = m1;
+ var numSpaces = 4 - leadingText.length % 4; // attacklab: g_tab_width
+
+ // there *must* be a better way to do this:
+ for (var i=0; i<numSpaces; i++) leadingText+=" ";
+
+ return leadingText;
+ }
+ );
+
+ // clean up sentinels
+ text = text.replace(/~A/g," "); // attacklab: g_tab_width
+ text = text.replace(/~B/g,"");
+
+ return text;
+}
+
+
+//
+// attacklab: Utility functions
+//
+
+
+var escapeCharacters = function(text, charsToEscape, afterBackslash) {
+ // First we have to escape the escape characters so that
+ // we can build a character class out of them
+ var regexString = "([" + charsToEscape.replace(/([\[\]\\])/g,"\\$1") + "])";
+
+ if (afterBackslash) {
+ regexString = "\\\\" + regexString;
+ }
+
+ var regex = new RegExp(regexString,"g");
+ text = text.replace(regex,escapeCharacters_callback);
+
+ return text;
+}
+
+
+var escapeCharacters_callback = function(wholeMatch,m1) {
+ var charCodeToEscape = m1.charCodeAt(0);
+ return "~E"+charCodeToEscape+"E";
+}
+
+} // end of Showdown.converter
+
+// export
+if (typeof exports != 'undefined') exports.Showdown = Showdown;
http://git-wip-us.apache.org/repos/asf/incubator-corinthia/blob/9bf02bb2/experiments/editorFramework/src/Javascript_Layer_0/AutoCorrect.js
----------------------------------------------------------------------
diff --git a/experiments/editorFramework/src/Javascript_Layer_0/AutoCorrect.js b/experiments/editorFramework/src/Javascript_Layer_0/AutoCorrect.js
new file mode 100644
index 0000000..a80e17d
--- /dev/null
+++ b/experiments/editorFramework/src/Javascript_Layer_0/AutoCorrect.js
@@ -0,0 +1,285 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements. See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership. The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License. You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied. See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+var AutoCorrect_init;
+var AutoCorrect_removeListeners;
+var AutoCorrect_addCorrection;
+var AutoCorrect_removeCorrection;
+var AutoCorrect_getCorrections;
+
+var AutoCorrect_correctPrecedingWord;
+var AutoCorrect_getCorrection;
+var AutoCorrect_getCorrectionCoords;
+var AutoCorrect_acceptCorrection;
+var AutoCorrect_revertCorrection;
+var AutoCorrect_replaceCorrection;
+
+(function() {
+
+ function removeCorrectionSpan(span)
+ {
+ if (span.parentNode == null)
+ return;
+ Selection_preserveWhileExecuting(function() {
+ var firstChild = span.firstChild;
+ DOM_removeNodeButKeepChildren(span);
+ if (firstChild != null)
+ Formatting_mergeWithNeighbours(firstChild,{});
+ });
+ }
+
+ function Correction(span)
+ {
+ this.span = span;
+ this.modificationListener = function(event) {
+ if (DOM_getIgnoreMutations())
+ return;
+ PostponedActions_add(function() {
+ // This will trigger a removeCorrection() call
+ removeCorrectionSpan(span);
+ });
+ };
+ }
+
+ Correction.prototype.toString = function()
+ {
+ return this.span.getAttribute("original")+" -> "+getNodeText(this.span);
+ }
+
+ var correctionsByNode = null;
+ var correctionList = null;
+
+ // private
+ function docNodeInserted(event)
+ {
+ try {
+ recurse(event.target);
+ }
+ catch (e) {
+ Editor_error(e);
+ }
+
+ function recurse(node)
+ {
+ if (isAutoCorrectNode(node))
+ AutoCorrect_addCorrection(node);
+ for (var child = node.firstChild; child != null; child = child.nextSibling)
+ recurse(child);
+ }
+ }
+
+ // private
+ function docNodeRemoved(event)
+ {
+ try {
+ recurse(event.target);
+ }
+ catch (e) {
+ Editor_error(e);
+ }
+
+ function recurse(node)
+ {
+ if (isAutoCorrectNode(node))
+ AutoCorrect_removeCorrection(node);
+ for (var child = node.firstChild; child != null; child = child.nextSibling)
+ recurse(child);
+ }
+ }
+
+ AutoCorrect_init = function()
+ {
+ correctionsByNode = new NodeMap();
+ correctionList = new Array();
+ document.addEventListener("DOMNodeInserted",docNodeInserted);
+ document.addEventListener("DOMNodeRemoved",docNodeRemoved);
+ }
+
+ // public (for the undo tests, when they report results)
+ AutoCorrect_removeListeners = function()
+ {
+ document.removeEventListener("DOMNodeInserted",docNodeInserted);
+ document.removeEventListener("DOMNodeRemoved",docNodeRemoved);
+ }
+
+ AutoCorrect_addCorrection = function(span)
+ {
+ var correction = new Correction(span);
+ correctionsByNode.put(span,correction);
+ correctionList.push(correction);
+ Editor_updateAutoCorrect();
+
+ span.addEventListener("DOMSubtreeModified",correction.modificationListener);
+ }
+
+ AutoCorrect_removeCorrection = function(span)
+ {
+ var correction = correctionsByNode.get(span);
+ if (correction == null)
+ throw new Error("No autocorrect entry for "+JSON.stringify(getNodeText(span)));
+
+ var index = null;
+ for (var i = 0; i < correctionList.length; i++) {
+ if (correctionList[i].span == span) {
+ index = i;
+ break;
+ }
+ }
+ if (index == null)
+ throw new Error("Correction "+correction+" not found in correctionList");
+ correctionList.splice(index,1);
+ Editor_updateAutoCorrect();
+
+ span.removeEventListener("DOMSubtreeModified",correction.modificationListener);
+ correctionsByNode.remove(span);
+ }
+
+ AutoCorrect_getCorrections = function()
+ {
+ var result = new Array();
+ for (var i = 0; i < correctionList.length; i++) {
+ var correction = correctionList[i];
+ result.push({ original: correction.span.getAttribute("original"),
+ replacement: getNodeText(correction.span)});
+ }
+ return result;
+ }
+
+ AutoCorrect_correctPrecedingWord = function(numChars,replacement,confirmed)
+ {
+ Selection_preserveWhileExecuting(function() {
+ var selRange = Selection_get();
+ if ((selRange == null) && !Range_isEmpty(selRange))
+ return;
+
+ var node = selRange.start.node;
+ var offset = selRange.start.offset;
+ if (node.nodeType != Node.TEXT_NODE)
+ return;
+
+ var original = node.nodeValue.substring(offset-numChars,offset);
+
+ if (confirmed) {
+ DOM_replaceCharacters(node,offset-numChars,offset,replacement);
+ return;
+ }
+
+ UndoManager_newGroup("Auto-correct");
+ var before = node.nodeValue.substring(0,offset-numChars);
+ var beforeText = DOM_createTextNode(document,before);
+ var replacementText = DOM_createTextNode(document,replacement);
+ var span = DOM_createElement(document,"SPAN");
+ DOM_setAttribute(span,"class",Keys.AUTOCORRECT_CLASS);
+ DOM_setAttribute(span,"original",original);
+ DOM_appendChild(span,replacementText);
+ DOM_insertBefore(node.parentNode,beforeText,node);
+ DOM_insertBefore(node.parentNode,span,node);
+ DOM_deleteCharacters(node,0,offset);
+ // Add the new group in a postponed action, so that the change to the style element
+ // is not counted as a separate action
+ PostponedActions_add(UndoManager_newGroup);
+ });
+ }
+
+ AutoCorrect_getCorrection = function()
+ {
+ var correction = getCurrent();
+ if (correction == null)
+ return null;
+
+ return { original: correction.span.getAttribute("original"),
+ replacement: getNodeText(correction.span) };
+ }
+
+ AutoCorrect_getCorrectionCoords = function()
+ {
+ var correction = getCurrent();
+ if (correction == null)
+ return null;
+
+ var textNode = correction.span.firstChild;
+ if ((textNode == null) || (textNode.nodeType != Node.TEXT_NODE))
+ return null;
+
+ var offset = Math.floor(textNode.nodeValue.length/2);
+ Selection_set(textNode,offset,textNode,offset);
+ Cursor_ensureCursorVisible();
+ var rect = Position_displayRectAtPos(new Position(textNode,offset));
+
+ if (rect == null) // FIXME: pos
+ throw new Error("no rect for pos "+(new Position(textNode,offset)));
+
+ if (rect == null)
+ return null;
+
+ return { x: rect.left, y: rect.top };
+ }
+
+ function getCurrent()
+ {
+ var range = Selection_get();
+ if (range != null) {
+ var endNode = Position_closestActualNode(range.end);
+ for (; endNode != null; endNode = endNode.parentNode) {
+ if (isAutoCorrectNode(endNode))
+ return correctionsByNode.get(endNode);
+ }
+ }
+
+ if (correctionList.length > 0)
+ return correctionList[correctionList.length-1];
+
+ return null;
+ }
+
+ AutoCorrect_acceptCorrection = function()
+ {
+ UndoManager_newGroup("Accept");
+ var correction = getCurrent();
+ if (correction == null)
+ return;
+
+ removeCorrectionSpan(correction.span);
+ UndoManager_newGroup();
+ }
+
+ AutoCorrect_revertCorrection = function()
+ {
+ var correction = getCurrent();
+ if (correction == null)
+ return;
+
+ AutoCorrect_replaceCorrection(correction.span.getAttribute("original"));
+ }
+
+ AutoCorrect_replaceCorrection = function(replacement)
+ {
+ UndoManager_newGroup("Replace");
+ var correction = getCurrent();
+ if (correction == null)
+ return;
+
+ Selection_preserveWhileExecuting(function() {
+ var text = DOM_createTextNode(document,replacement);
+ DOM_insertBefore(correction.span.parentNode,text,correction.span);
+ DOM_deleteNode(correction.span);
+ Formatting_mergeWithNeighbours(text,{});
+ });
+ UndoManager_newGroup();
+ }
+
+})();
http://git-wip-us.apache.org/repos/asf/incubator-corinthia/blob/9bf02bb2/experiments/editorFramework/src/Javascript_Layer_0/ChangeTracking.js
----------------------------------------------------------------------
diff --git a/experiments/editorFramework/src/Javascript_Layer_0/ChangeTracking.js b/experiments/editorFramework/src/Javascript_Layer_0/ChangeTracking.js
new file mode 100644
index 0000000..ba25a44
--- /dev/null
+++ b/experiments/editorFramework/src/Javascript_Layer_0/ChangeTracking.js
@@ -0,0 +1,127 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements. See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership. The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License. You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied. See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+var ChangeTracking_showChanges;
+var ChangeTracking_trackChanges;
+var ChangeTracking_setShowChanges;
+var ChangeTracking_setTrackChanges;
+var ChangeTracking_acceptSelectedChanges;
+
+(function() {
+
+ var showChangesEnabled = false;
+ var trackChangesEnabled = false;
+
+ ChangeTracking_showChanges = function()
+ {
+ return showChangesEnabled;
+ }
+
+ ChangeTracking_trackChanges = function()
+ {
+ return trackChangesEnabled;
+ }
+
+ ChangeTracking_setShowChanges = function(enabled)
+ {
+ showChangesEnabled = enabled;
+ }
+
+ ChangeTracking_setTrackChanges = function(enabled)
+ {
+ trackChangesEnabled = enabled;
+ }
+
+ ChangeTracking_acceptSelectedChanges = function()
+ {
+ var selRange = Selection_get();
+ if (selRange == null)
+ return;
+
+ var outermost = Range_getOutermostNodes(selRange,true);
+ var checkEmpty = new Array();
+
+ Selection_preserveWhileExecuting(function() {
+ for (var i = 0; i < outermost.length; i++) {
+ recurse(outermost[i]);
+
+ var next;
+ for (ancestor = outermost[i].parentNode; ancestor != null; ancestor = next) {
+ next = ancestor.parentNode;
+ if (ancestor._type == HTML_DEL) {
+ checkEmpty.push(ancestor.parentNode);
+ DOM_deleteNode(ancestor);
+ }
+ else if (ancestor._type == HTML_INS)
+ DOM_removeNodeButKeepChildren(ancestor);
+ }
+ }
+
+ for (var i = 0; i < checkEmpty.length; i++) {
+ var node = checkEmpty[i];
+ if (node == null)
+ continue;
+ var empty = true;
+ for (var child = node.firstChild; child != null; child = child.nextSibling) {
+ if (!isWhitespaceTextNode(child)) {
+ empty = false;
+ break;
+ }
+ }
+ if (empty) {
+ switch (node._type) {
+ case HTML_LI:
+ case HTML_UL:
+ case HTML_OL:
+ checkEmpty.push(node.parentNode);
+ DOM_deleteNode(node);
+ break;
+ }
+ }
+ }
+ });
+
+ var selRange = Selection_get();
+ if (selRange != null) {
+ var start = Position_closestMatchForwards(selRange.start,Position_okForInsertion);
+ var end = Position_closestMatchBackwards(selRange.end,Position_okForInsertion);
+ if (!Range_isForwards(new Range(start.node,start.offset,end.node,end.offset)))
+ end = Position_closestMatchForwards(selRange.end,Position_okForInsertion);
+ Selection_set(start.node,start.offset,end.node,end.offset);
+ }
+
+ function recurse(node)
+ {
+ if (node._type == HTML_DEL) {
+ checkEmpty.push(node.parentNode);
+ DOM_deleteNode(node);
+ return;
+ }
+
+ var next;
+ for (var child = node.firstChild; child != null; child = next) {
+ next = child.nextSibling;
+ recurse(child);
+ }
+
+ if (node._type == HTML_INS) {
+ DOM_removeNodeButKeepChildren(node);
+ }
+ }
+ }
+
+})();