2007-03-22 10:30:00 -07:00
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# -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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# ***** BEGIN LICENSE BLOCK *****
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# Version: MPL 1.1/GPL 2.0/LGPL 2.1
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#
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# The contents of this file are subject to the Mozilla Public License Version
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# 1.1 (the "License"); you may not use this file except in compliance with
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# the License. You may obtain a copy of the License at
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# http://www.mozilla.org/MPL/
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#
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# Software distributed under the License is distributed on an "AS IS" basis,
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# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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# for the specific language governing rights and limitations under the
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# License.
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#
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# The Original Code is mozilla.org view-source front-end.
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#
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# The Initial Developer of the Original Code is
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# mozilla.org.
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# Portions created by the Initial Developer are Copyright (C) 2002
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# the Initial Developer. All Rights Reserved.
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#
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# Contributor(s):
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# Roger B. Sidje <rbs@maths.uq.edu.au> (Original Author)
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# Steve Swanson <steve.swanson@mackichan.com>
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# Doron Rosenberg <doronr@naboonline.com>
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#
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# Alternatively, the contents of this file may be used under the terms of
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# either the GNU General Public License Version 2 or later (the "GPL"), or
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# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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# in which case the provisions of the GPL or the LGPL are applicable instead
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# of those above. If you wish to allow use of your version of this file only
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# under the terms of either the GPL or the LGPL, and not to allow others to
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# use your version of this file under the terms of the MPL, indicate your
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# decision by deleting the provisions above and replace them with the notice
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# and other provisions required by the GPL or the LGPL. If you do not delete
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# the provisions above, a recipient may use your version of this file under
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# the terms of any one of the MPL, the GPL or the LGPL.
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#
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# ***** END LICENSE BLOCK *****
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var gDebug = 0;
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var gLineCount = 0;
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var gStartTargetLine = 0;
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var gEndTargetLine = 0;
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var gTargetNode = null;
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var gEntityConverter = null;
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var gWrapLongLines = false;
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const gViewSourceCSS = 'resource://gre/res/viewsource.css';
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const NS_XHTML = 'http://www.w3.org/1999/xhtml';
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// These are markers used to delimit the selection during processing. They
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// are removed from the final rendering, but we pick space-like characters for
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// safety (and futhermore, these are known to be mapped to a 0-length string
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// in transliterate.properties). It is okay to set start=end, we use findNext()
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// U+200B ZERO WIDTH SPACE
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const MARK_SELECTION_START = '\u200B\u200B\u200B\u200B\u200B';
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const MARK_SELECTION_END = '\u200B\u200B\u200B\u200B\u200B';
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function onLoadViewPartialSource()
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{
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// check the view_source.wrap_long_lines pref and set the menuitem's checked attribute accordingly
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if (gPrefs) {
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try {
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var wraplonglinesPrefValue = gPrefs.getBoolPref('view_source.wrap_long_lines');
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if (wraplonglinesPrefValue) {
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document.getElementById('menu_wrapLongLines').setAttribute('checked', 'true');
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gWrapLongLines = true;
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}
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} catch (e) { }
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try {
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document.getElementById("menu_highlightSyntax").setAttribute("checked", gPrefs.getBoolPref("view_source.syntax_highlight"));
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} catch (e) {
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}
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} else {
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document.getElementById("menu_highlightSyntax").setAttribute("hidden", "true");
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}
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if (window.arguments[3] == 'selection')
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viewPartialSourceForSelection(window.arguments[2]);
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else
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viewPartialSourceForFragment(window.arguments[2], window.arguments[3]);
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2009-01-15 20:02:20 -08:00
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window.content.focus();
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2007-03-22 10:30:00 -07:00
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}
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////////////////////////////////////////////////////////////////////////////////
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// view-source of a selection with the special effect of remapping the selection
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// to the underlying view-source output
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function viewPartialSourceForSelection(selection)
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{
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var range = selection.getRangeAt(0);
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var ancestorContainer = range.commonAncestorContainer;
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var doc = ancestorContainer.ownerDocument;
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var startContainer = range.startContainer;
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var endContainer = range.endContainer;
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var startOffset = range.startOffset;
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var endOffset = range.endOffset;
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// let the ancestor be an element
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if (ancestorContainer.nodeType == Node.TEXT_NODE ||
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ancestorContainer.nodeType == Node.CDATA_SECTION_NODE)
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ancestorContainer = ancestorContainer.parentNode;
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// for selectAll, let's use the entire document, including <html>...</html>
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// @see DocumentViewerImpl::SelectAll() for how selectAll is implemented
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try {
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if (ancestorContainer == doc.body)
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ancestorContainer = doc.documentElement;
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} catch (e) { }
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// each path is a "child sequence" (a.k.a. "tumbler") that
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// descends from the ancestor down to the boundary point
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var startPath = getPath(ancestorContainer, startContainer);
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var endPath = getPath(ancestorContainer, endContainer);
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// clone the fragment of interest and reset everything to be relative to it
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// note: it is with the clone that we operate/munge from now on
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ancestorContainer = ancestorContainer.cloneNode(true);
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startContainer = ancestorContainer;
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endContainer = ancestorContainer;
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// Only bother with the selection if it can be remapped. Don't mess with
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// leaf elements (such as <isindex>) that secretly use anynomous content
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// for their display appearance.
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var canDrawSelection = ancestorContainer.hasChildNodes();
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if (canDrawSelection) {
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var i;
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for (i = startPath ? startPath.length-1 : -1; i >= 0; i--) {
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startContainer = startContainer.childNodes.item(startPath[i]);
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}
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for (i = endPath ? endPath.length-1 : -1; i >= 0; i--) {
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endContainer = endContainer.childNodes.item(endPath[i]);
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}
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// add special markers to record the extent of the selection
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// note: |startOffset| and |endOffset| are interpreted either as
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// offsets in the text data or as child indices (see the Range spec)
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// (here, munging the end point first to keep the start point safe...)
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var tmpNode;
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if (endContainer.nodeType == Node.TEXT_NODE ||
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endContainer.nodeType == Node.CDATA_SECTION_NODE) {
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// do some extra tweaks to try to avoid the view-source output to look like
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// ...<tag>]... or ...]</tag>... (where ']' marks the end of the selection).
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// To get a neat output, the idea here is to remap the end point from:
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// 1. ...<tag>]... to ...]<tag>...
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// 2. ...]</tag>... to ...</tag>]...
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if ((endOffset > 0 && endOffset < endContainer.data.length) ||
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!endContainer.parentNode || !endContainer.parentNode.parentNode)
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endContainer.insertData(endOffset, MARK_SELECTION_END);
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else {
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tmpNode = doc.createTextNode(MARK_SELECTION_END);
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endContainer = endContainer.parentNode;
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if (endOffset == 0)
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endContainer.parentNode.insertBefore(tmpNode, endContainer);
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else
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endContainer.parentNode.insertBefore(tmpNode, endContainer.nextSibling);
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}
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}
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else {
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tmpNode = doc.createTextNode(MARK_SELECTION_END);
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endContainer.insertBefore(tmpNode, endContainer.childNodes.item(endOffset));
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}
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if (startContainer.nodeType == Node.TEXT_NODE ||
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startContainer.nodeType == Node.CDATA_SECTION_NODE) {
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// do some extra tweaks to try to avoid the view-source output to look like
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// ...<tag>[... or ...[</tag>... (where '[' marks the start of the selection).
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// To get a neat output, the idea here is to remap the start point from:
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// 1. ...<tag>[... to ...[<tag>...
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// 2. ...[</tag>... to ...</tag>[...
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if ((startOffset > 0 && startOffset < startContainer.data.length) ||
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!startContainer.parentNode || !startContainer.parentNode.parentNode ||
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startContainer != startContainer.parentNode.lastChild)
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startContainer.insertData(startOffset, MARK_SELECTION_START);
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else {
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tmpNode = doc.createTextNode(MARK_SELECTION_START);
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startContainer = startContainer.parentNode;
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if (startOffset == 0)
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startContainer.parentNode.insertBefore(tmpNode, startContainer);
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else
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startContainer.parentNode.insertBefore(tmpNode, startContainer.nextSibling);
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}
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}
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else {
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tmpNode = doc.createTextNode(MARK_SELECTION_START);
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startContainer.insertBefore(tmpNode, startContainer.childNodes.item(startOffset));
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}
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}
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// now extract and display the syntax highlighted source
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tmpNode = doc.createElementNS(NS_XHTML, 'div');
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tmpNode.appendChild(ancestorContainer);
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// the load is aynchronous and so we will wait until the view-source DOM is done
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// before drawing the selection.
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if (canDrawSelection) {
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window.document.getElementById("content").addEventListener("load", drawSelection, true);
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}
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// all our content is held by the data:URI and URIs are internally stored as utf-8 (see nsIURI.idl)
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var loadFlags = Components.interfaces.nsIWebNavigation.LOAD_FLAGS_NONE;
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getBrowser().webNavigation
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.loadURI("view-source:data:text/html;charset=utf-8," + encodeURIComponent(tmpNode.innerHTML),
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loadFlags, null, null, null);
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}
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////////////////////////////////////////////////////////////////////////////////
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// helper to get a path like FIXptr, but with an array instead of the "tumbler" notation
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// see FIXptr: http://lists.w3.org/Archives/Public/www-xml-linking-comments/2001AprJun/att-0074/01-NOTE-FIXptr-20010425.htm
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function getPath(ancestor, node)
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{
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var n = node;
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var p = n.parentNode;
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if (n == ancestor || !p)
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return null;
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var path = new Array();
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if (!path)
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return null;
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do {
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for (var i = 0; i < p.childNodes.length; i++) {
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if (p.childNodes.item(i) == n) {
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path.push(i);
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break;
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}
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}
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n = p;
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p = n.parentNode;
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} while (n != ancestor && p);
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return path;
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}
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////////////////////////////////////////////////////////////////////////////////
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// using special markers left in the serialized source, this helper makes the
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// underlying markup of the selected fragment to automatically appear as selected
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// on the inflated view-source DOM
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function drawSelection()
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{
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getBrowser().contentDocument.title =
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getViewSourceBundle().getString("viewSelectionSourceTitle");
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// find the special selection markers that we added earlier, and
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// draw the selection between the two...
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var findService = null;
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try {
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// get the find service which stores the global find state
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findService = Components.classes["@mozilla.org/find/find_service;1"]
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.getService(Components.interfaces.nsIFindService);
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} catch(e) { }
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if (!findService)
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return;
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// cache the current global find state
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var matchCase = findService.matchCase;
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var entireWord = findService.entireWord;
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var wrapFind = findService.wrapFind;
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var findBackwards = findService.findBackwards;
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var searchString = findService.searchString;
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var replaceString = findService.replaceString;
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// setup our find instance
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var findInst = getBrowser().webBrowserFind;
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findInst.matchCase = true;
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findInst.entireWord = false;
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findInst.wrapFind = true;
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findInst.findBackwards = false;
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// ...lookup the start mark
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findInst.searchString = MARK_SELECTION_START;
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var startLength = MARK_SELECTION_START.length;
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findInst.findNext();
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var contentWindow = getBrowser().contentDocument.defaultView;
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var selection = contentWindow.getSelection();
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var range = selection.getRangeAt(0);
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var startContainer = range.startContainer;
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var startOffset = range.startOffset;
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// ...lookup the end mark
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findInst.searchString = MARK_SELECTION_END;
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var endLength = MARK_SELECTION_END.length;
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findInst.findNext();
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var endContainer = selection.anchorNode;
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var endOffset = selection.anchorOffset;
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// reset the selection that find has left
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selection.removeAllRanges();
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// delete the special markers now...
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endContainer.deleteData(endOffset, endLength);
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startContainer.deleteData(startOffset, startLength);
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if (startContainer == endContainer)
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endOffset -= startLength; // has shrunk if on same text node...
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range.setEnd(endContainer, endOffset);
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// show the selection and scroll it into view
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selection.addRange(range);
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// the default behavior of the selection is to scroll at the end of
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// the selection, whereas in this situation, it is more user-friendly
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// to scroll at the beginning. So we override the default behavior here
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try {
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getBrowser().docShell
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.QueryInterface(Components.interfaces.nsIInterfaceRequestor)
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.getInterface(Components.interfaces.nsISelectionDisplay)
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.QueryInterface(Components.interfaces.nsISelectionController)
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.scrollSelectionIntoView(Components.interfaces.nsISelectionController.SELECTION_NORMAL,
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Components.interfaces.nsISelectionController.SELECTION_ANCHOR_REGION,
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true);
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}
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catch(e) { }
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// restore the current find state
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findService.matchCase = matchCase;
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findService.entireWord = entireWord;
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findService.wrapFind = wrapFind;
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findService.findBackwards = findBackwards;
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findService.searchString = searchString;
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findService.replaceString = replaceString;
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findInst.matchCase = matchCase;
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findInst.entireWord = entireWord;
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findInst.wrapFind = wrapFind;
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findInst.findBackwards = findBackwards;
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findInst.searchString = searchString;
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}
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////////////////////////////////////////////////////////////////////////////////
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// special handler for markups such as MathML where reformatting the output is
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// helpful
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function viewPartialSourceForFragment(node, context)
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{
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gTargetNode = node;
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if (gTargetNode && gTargetNode.nodeType == Node.TEXT_NODE)
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gTargetNode = gTargetNode.parentNode;
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// walk up the tree to the top-level element (e.g., <math>, <svg>)
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var topTag;
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if (context == 'mathml')
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topTag = 'math';
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else
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throw 'not reached';
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var topNode = gTargetNode;
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while (topNode && topNode.localName != topTag)
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|
|
topNode = topNode.parentNode;
|
|
|
|
if (!topNode)
|
|
|
|
return;
|
|
|
|
|
|
|
|
// serialize
|
|
|
|
var title = getViewSourceBundle().getString("viewMathMLSourceTitle");
|
|
|
|
var wrapClass = gWrapLongLines ? ' class="wrap"' : '';
|
|
|
|
var source =
|
2008-12-11 13:00:37 -08:00
|
|
|
'<!DOCTYPE html>'
|
|
|
|
+ '<html>'
|
2007-03-22 10:30:00 -07:00
|
|
|
+ '<head><title>' + title + '</title>'
|
|
|
|
+ '<link rel="stylesheet" type="text/css" href="' + gViewSourceCSS + '">'
|
|
|
|
+ '<style type="text/css">'
|
|
|
|
+ '#target { border: dashed 1px; background-color: lightyellow; }'
|
|
|
|
+ '</style>'
|
|
|
|
+ '</head>'
|
|
|
|
+ '<body id="viewsource"' + wrapClass
|
|
|
|
+ ' onload="document.title=\''+title+'\';document.getElementById(\'target\').scrollIntoView(true)">'
|
|
|
|
+ '<pre>'
|
|
|
|
+ getOuterMarkup(topNode, 0)
|
|
|
|
+ '</pre></body></html>'
|
|
|
|
; // end
|
|
|
|
|
|
|
|
// display
|
2008-12-11 13:00:37 -08:00
|
|
|
getBrowser().loadURI("data:text/html;charset=utf-8," + encodeURIComponent(source));
|
2007-03-22 10:30:00 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function getInnerMarkup(node, indent) {
|
|
|
|
var str = '';
|
|
|
|
for (var i = 0; i < node.childNodes.length; i++) {
|
|
|
|
str += getOuterMarkup(node.childNodes.item(i), indent);
|
|
|
|
}
|
|
|
|
return str;
|
|
|
|
}
|
|
|
|
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function getOuterMarkup(node, indent) {
|
|
|
|
var newline = '';
|
|
|
|
var padding = '';
|
|
|
|
var str = '';
|
|
|
|
if (node == gTargetNode) {
|
|
|
|
gStartTargetLine = gLineCount;
|
|
|
|
str += '</pre><pre id="target">';
|
|
|
|
}
|
|
|
|
|
|
|
|
switch (node.nodeType) {
|
|
|
|
case Node.ELEMENT_NODE: // Element
|
|
|
|
// to avoid the wide gap problem, '\n' is not emitted on the first
|
|
|
|
// line and the lines before & after the <pre id="target">...</pre>
|
|
|
|
if (gLineCount > 0 &&
|
|
|
|
gLineCount != gStartTargetLine &&
|
|
|
|
gLineCount != gEndTargetLine) {
|
|
|
|
newline = '\n';
|
|
|
|
}
|
|
|
|
gLineCount++;
|
|
|
|
if (gDebug) {
|
|
|
|
newline += gLineCount;
|
|
|
|
}
|
|
|
|
for (var k = 0; k < indent; k++) {
|
|
|
|
padding += ' ';
|
|
|
|
}
|
|
|
|
str += newline + padding
|
|
|
|
+ '<<span class="start-tag">' + node.nodeName + '</span>';
|
|
|
|
for (var i = 0; i < node.attributes.length; i++) {
|
|
|
|
var attr = node.attributes.item(i);
|
|
|
|
if (!gDebug && attr.nodeName.match(/^[-_]moz/)) {
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
str += ' <span class="attribute-name">'
|
|
|
|
+ attr.nodeName
|
|
|
|
+ '</span>=<span class="attribute-value">"'
|
|
|
|
+ unicodeTOentity(attr.nodeValue)
|
|
|
|
+ '"</span>';
|
|
|
|
}
|
|
|
|
if (!node.hasChildNodes()) {
|
|
|
|
str += '/>';
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
str += '>';
|
|
|
|
var oldLine = gLineCount;
|
|
|
|
str += getInnerMarkup(node, indent + 2);
|
|
|
|
if (oldLine == gLineCount) {
|
|
|
|
newline = '';
|
|
|
|
padding = '';
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
newline = (gLineCount == gEndTargetLine) ? '' : '\n';
|
|
|
|
gLineCount++;
|
|
|
|
if (gDebug) {
|
|
|
|
newline += gLineCount;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
str += newline + padding
|
|
|
|
+ '</<span class="end-tag">' + node.nodeName + '</span>>';
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case Node.TEXT_NODE: // Text
|
|
|
|
var tmp = node.nodeValue;
|
|
|
|
tmp = tmp.replace(/(\n|\r|\t)+/g, " ");
|
|
|
|
tmp = tmp.replace(/^ +/, "");
|
|
|
|
tmp = tmp.replace(/ +$/, "");
|
|
|
|
if (tmp.length != 0) {
|
|
|
|
str += '<span class="text">' + unicodeTOentity(tmp) + '</span>';
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (node == gTargetNode) {
|
|
|
|
gEndTargetLine = gLineCount;
|
|
|
|
str += '</pre><pre>';
|
|
|
|
}
|
|
|
|
return str;
|
|
|
|
}
|
|
|
|
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function unicodeTOentity(text)
|
|
|
|
{
|
|
|
|
const charTable = {
|
|
|
|
'&': '&<span class="entity">amp;</span>',
|
|
|
|
'<': '&<span class="entity">lt;</span>',
|
|
|
|
'>': '&<span class="entity">gt;</span>',
|
|
|
|
'"': '&<span class="entity">quot;</span>'
|
|
|
|
};
|
|
|
|
|
|
|
|
function charTableLookup(letter) {
|
|
|
|
return charTable[letter];
|
|
|
|
}
|
|
|
|
|
|
|
|
function convertEntity(letter) {
|
|
|
|
try {
|
|
|
|
var unichar = gEntityConverter.ConvertToEntity(letter, entityVersion);
|
|
|
|
var entity = unichar.substring(1); // extract '&'
|
|
|
|
return '&<span class="entity">' + entity + '</span>';
|
|
|
|
} catch (ex) {
|
|
|
|
return letter;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!gEntityConverter) {
|
|
|
|
try {
|
|
|
|
gEntityConverter =
|
|
|
|
Components.classes["@mozilla.org/intl/entityconverter;1"]
|
|
|
|
.createInstance(Components.interfaces.nsIEntityConverter);
|
|
|
|
} catch(e) { }
|
|
|
|
}
|
|
|
|
|
|
|
|
const entityVersion = Components.interfaces.nsIEntityConverter.entityW3C;
|
|
|
|
|
|
|
|
var str = text;
|
|
|
|
|
|
|
|
// replace chars in our charTable
|
|
|
|
str = str.replace(/[<>&"]/g, charTableLookup);
|
|
|
|
|
|
|
|
// replace chars > 0x7f via nsIEntityConverter
|
|
|
|
str = str.replace(/[^\0-\u007f]/g, convertEntity);
|
|
|
|
|
|
|
|
return str;
|
|
|
|
}
|