2013-07-23 23:51:21 +00:00
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define([
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"jquery",
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"underscore",
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"classes/Extension",
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"text!html/partialRenderingSettingsBlock.html",
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], function($, _, Extension, partialRenderingSettingsBlockHTML) {
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var partialRendering = new Extension("partialRendering", "Partial rendering", true);
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partialRendering.settingsBlock = partialRenderingSettingsBlockHTML;
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var converter = undefined;
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2013-07-24 23:20:56 +00:00
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var sectionIdGenerator = 0;
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var sectionList = [
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{
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text: ""
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}
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];
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var sectionsToRemove = undefined;
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function updateSectionList(newSectionList) {
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// Find modified sections starting from left
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var leftIndex = sectionList.length;
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_.some(sectionList, function(section, index) {
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if(index >= newSectionList.length || section.text != newSectionList[index].text) {
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leftIndex = index;
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return true;
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}
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});
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// Find modified sections starting from right
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var rightIndex = -sectionList.length;
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_.some(sectionList.slice().reverse(), function(section, index) {
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if(index >= newSectionList.length || section.text != newSectionList[newSectionList.length - index - 1].text) {
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rightIndex = -index;
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return true;
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}
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});
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if(leftIndex === sectionList.length && rightIndex === -leftIndex) {
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// No modification detected...
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return;
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}
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// Create an array composed of left unmodified, modified, right
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// unmodified sections
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var leftSections = sectionList.slice(0, leftIndex);
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var modifiedSections = newSectionList.slice(leftIndex, newSectionList.length + rightIndex);
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var rightSections = sectionList.slice(sectionList.length + rightIndex, sectionList.length);
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sectionsToRemove = sectionList.slice(leftIndex, sectionList.length + rightIndex);
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sectionList = leftSections.concat(modifiedSections).concat(rightSections);
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}
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2013-07-23 23:51:21 +00:00
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var hasFootnotes = false;
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function extractSections(text) {
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text += "\n\n";
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// Strip link definitions
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var linkDefinition = "";
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text = text.replace(/^[ ]{0,3}\[(.+)\]:[ \t]*\n?[ \t]*<?(\S+?)>?(?=\s|$)[ \t]*\n?[ \t]*((\n*)["(](.+?)[")][ \t]*)?(?:\n+)/gm, function(wholeMatch) {
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linkDefinition += wholeMatch;
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return "";
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});
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// And eventually footnotes...
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hasFootnotes = false;
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var doFootnotes = _.some(converter.extraExtensions, function(extension) {
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return extension == "footnotes";
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});
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if(doFootnotes) {
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text = text.replace(/\n[ ]{0,3}\[\^(.+?)\]\:[ \t]*\n?([\s\S]*?)\n{1,2}((?=\n[ ]{0,3}\S)|$)/g, function(wholeMatch) {
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hasFootnotes = true;
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linkDefinition += wholeMatch;
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return "";
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});
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}
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// Look for titles
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var newSectionList = [];
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var offset = 0;
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text.replace(/^```.*\n[\s\S]*?\n```|(^.+[ \t]*\n=+[ \t]*\n+|^.+[ \t]*\n-+[ \t]*\n+|^\#{1,6}[ \t]*.+?[ \t]*\#*\n+)/gm, function(match, title, matchOffset) {
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if(title) {
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// We just found a title which means end of the previous section
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if(matchOffset > offset) {
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2013-07-24 23:20:56 +00:00
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newSectionList.push({
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id: ++sectionIdGenerator,
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text: text.substring(offset, matchOffset) + "\n" + linkDefinition
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});
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2013-07-23 23:51:21 +00:00
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offset = matchOffset;
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}
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}
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return "";
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});
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// Last section
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2013-07-24 23:20:56 +00:00
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newSectionList.push({
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id: ++sectionIdGenerator,
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text: text.substring(offset, text.length) + linkDefinition
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});
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2013-07-23 23:51:21 +00:00
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2013-07-24 23:20:56 +00:00
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updateSectionList(newSectionList);
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2013-07-23 23:51:21 +00:00
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}
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var isRendering = false;
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2013-07-24 23:20:56 +00:00
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var footnoteContainer = $('<div>');
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var footnoteContainerFirstChild = $('<div>').appendTo(footnoteContainer);
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2013-07-23 23:51:21 +00:00
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function renderSections() {
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2013-07-24 23:20:56 +00:00
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converter.eltList = [];
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// Remove outdated sections
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_.each(sectionsToRemove, function(section) {
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$("#wmd-preview-section-" + section.id).remove();
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footnoteContainer.find("#footnotes-section-" + section.id).remove();
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});
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var footnoteContainerElt = $("#wmd-preview-section-footnotes");
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footnoteContainerElt.empty();
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// Renders modified sections
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2013-07-23 23:51:21 +00:00
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isRendering = true;
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2013-07-24 23:20:56 +00:00
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var previousSectionElt = $("#wmd-preview");
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var previousFootnoteElt = footnoteContainerFirstChild;
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_.each(sectionList, function(section) {
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if(section.isConverted === true) {
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previousSectionElt = $("#wmd-preview-section-" + section.id);
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footnoteContainer.find("#footnotes-section-" + section.id).each(function() {
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previousFootnoteElt = $(this);
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});
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return;
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}
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var sectionHtml = converter.makeHtml(section.text);
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var sectionElt = $('<div id="wmd-preview-section-' + section.id + '" class="preview-content">').html(sectionHtml);
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sectionElt.find("div.footnotes").each(function() {
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var footnoteElt = $(this).attr("id", "footnotes-section-" + section.id);
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previousFootnoteElt.after(footnoteElt);
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previousFootnoteElt = footnoteElt;
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});
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previousSectionElt.after(sectionElt);
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previousSectionElt = sectionElt;
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converter.eltList.push(sectionElt[0]);
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section.isConverted = true;
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});
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2013-07-23 23:51:21 +00:00
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isRendering = false;
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2013-07-24 23:20:56 +00:00
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// Rewrite footnotes in the footer
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2013-07-23 23:51:21 +00:00
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if(hasFootnotes === true) {
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// Recreate a footnote list
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var footnoteElts = $("<ol>");
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2013-07-24 23:20:56 +00:00
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footnoteContainer.find("div.footnotes > ol > li").each(function(index) {
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2013-07-23 23:51:21 +00:00
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hasFootnotes = true;
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var elt = $(this);
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2013-07-24 23:20:56 +00:00
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footnoteElts.append(elt.clone());
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2013-07-23 23:51:21 +00:00
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// Restore footnotes numbers
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var refId = "#fnref\\:" + elt.attr("id").substring(3);
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$(refId).text(index + 1);
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});
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// Append the whole footnotes at the end of the document
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2013-07-24 23:20:56 +00:00
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footnoteContainerElt.html($('<div class="footnotes">').append("<hr>").append(footnoteElts));
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2013-07-23 23:51:21 +00:00
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}
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}
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partialRendering.onEditorConfigure = function(editor) {
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converter = editor.getConverter();
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converter.hooks.chain("preConversion", function(text) {
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if(isRendering === true) {
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return text;
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}
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extractSections(text);
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return "";
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});
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editor.hooks.chain("onPreviewRefresh", function() {
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$("#wmd-preview").html(renderSections());
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});
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};
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2013-07-24 23:20:56 +00:00
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partialRendering.onReady = function() {
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$("#preview-contents").append($('<div id="wmd-preview-section-footnotes" class="preview-content">'));
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};
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2013-07-23 23:51:21 +00:00
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return partialRendering;
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});
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