v6

node_modules/parse5/lib/serializer/index.js

@@ -0,0 +1,162 @@
+'use strict';
+
+var defaultTreeAdapter = require('../tree_adapters/default'),
+    mergeOptions = require('../utils/merge_options'),
+    doctype = require('../common/doctype'),
+    HTML = require('../common/html');
+
+//Aliases
+var $ = HTML.TAG_NAMES,
+    NS = HTML.NAMESPACES;
+
+//Default serializer options
+var DEFAULT_OPTIONS = {
+    treeAdapter: defaultTreeAdapter
+};
+
+//Escaping regexes
+var AMP_REGEX = /&/g,
+    NBSP_REGEX = /\u00a0/g,
+    DOUBLE_QUOTE_REGEX = /"/g,
+    LT_REGEX = /</g,
+    GT_REGEX = />/g;
+
+//Serializer
+var Serializer = module.exports = function (node, options) {
+    this.options = mergeOptions(DEFAULT_OPTIONS, options);
+    this.treeAdapter = this.options.treeAdapter;
+
+    this.html = '';
+    this.startNode = node;
+};
+
+// NOTE: exported as static method for the testing purposes
+Serializer.escapeString = function (str, attrMode) {
+    str = str
+        .replace(AMP_REGEX, '&amp;')
+        .replace(NBSP_REGEX, '&nbsp;');
+
+    if (attrMode)
+        str = str.replace(DOUBLE_QUOTE_REGEX, '&quot;');
+
+    else {
+        str = str
+            .replace(LT_REGEX, '&lt;')
+            .replace(GT_REGEX, '&gt;');
+    }
+
+    return str;
+};
+
+
+//API
+Serializer.prototype.serialize = function () {
+    this._serializeChildNodes(this.startNode);
+
+    return this.html;
+};
+
+
+//Internals
+Serializer.prototype._serializeChildNodes = function (parentNode) {
+    var childNodes = this.treeAdapter.getChildNodes(parentNode);
+
+    if (childNodes) {
+        for (var i = 0, cnLength = childNodes.length; i < cnLength; i++) {
+            var currentNode = childNodes[i];
+
+            if (this.treeAdapter.isElementNode(currentNode))
+                this._serializeElement(currentNode);
+
+            else if (this.treeAdapter.isTextNode(currentNode))
+                this._serializeTextNode(currentNode);
+
+            else if (this.treeAdapter.isCommentNode(currentNode))
+                this._serializeCommentNode(currentNode);
+
+            else if (this.treeAdapter.isDocumentTypeNode(currentNode))
+                this._serializeDocumentTypeNode(currentNode);
+        }
+    }
+};
+
+Serializer.prototype._serializeElement = function (node) {
+    var tn = this.treeAdapter.getTagName(node),
+        ns = this.treeAdapter.getNamespaceURI(node);
+
+    this.html += '<' + tn;
+    this._serializeAttributes(node);
+    this.html += '>';
+
+    if (tn !== $.AREA && tn !== $.BASE && tn !== $.BASEFONT && tn !== $.BGSOUND && tn !== $.BR && tn !== $.BR &&
+        tn !== $.COL && tn !== $.EMBED && tn !== $.FRAME && tn !== $.HR && tn !== $.IMG && tn !== $.INPUT &&
+        tn !== $.KEYGEN && tn !== $.LINK && tn !== $.MENUITEM && tn !== $.META && tn !== $.PARAM && tn !== $.SOURCE &&
+        tn !== $.TRACK && tn !== $.WBR) {
+
+        var childNodesHolder = tn === $.TEMPLATE && ns === NS.HTML ?
+            this.treeAdapter.getTemplateContent(node) :
+            node;
+
+        this._serializeChildNodes(childNodesHolder);
+        this.html += '</' + tn + '>';
+    }
+};
+
+Serializer.prototype._serializeAttributes = function (node) {
+    var attrs = this.treeAdapter.getAttrList(node);
+
+    for (var i = 0, attrsLength = attrs.length; i < attrsLength; i++) {
+        var attr = attrs[i],
+            value = Serializer.escapeString(attr.value, true);
+
+        this.html += ' ';
+
+        if (!attr.namespace)
+            this.html += attr.name;
+
+        else if (attr.namespace === NS.XML)
+            this.html += 'xml:' + attr.name;
+
+        else if (attr.namespace === NS.XMLNS) {
+            if (attr.name !== 'xmlns')
+                this.html += 'xmlns:';
+
+            this.html += attr.name;
+        }
+
+        else if (attr.namespace === NS.XLINK)
+            this.html += 'xlink:' + attr.name;
+
+        else
+            this.html += attr.namespace + ':' + attr.name;
+
+        this.html += '="' + value + '"';
+    }
+};
+
+Serializer.prototype._serializeTextNode = function (node) {
+    var content = this.treeAdapter.getTextNodeContent(node),
+        parent = this.treeAdapter.getParentNode(node),
+        parentTn = void 0;
+
+    if (parent && this.treeAdapter.isElementNode(parent))
+        parentTn = this.treeAdapter.getTagName(parent);
+
+    if (parentTn === $.STYLE || parentTn === $.SCRIPT || parentTn === $.XMP || parentTn === $.IFRAME ||
+        parentTn === $.NOEMBED || parentTn === $.NOFRAMES || parentTn === $.PLAINTEXT || parentTn === $.NOSCRIPT)
+
+        this.html += content;
+
+    else
+        this.html += Serializer.escapeString(content, false);
+};
+
+Serializer.prototype._serializeCommentNode = function (node) {
+    this.html += '<!--' + this.treeAdapter.getCommentNodeContent(node) + '-->';
+};
+
+Serializer.prototype._serializeDocumentTypeNode = function (node) {
+    var name = this.treeAdapter.getDocumentTypeNodeName(node);
+
+    this.html += '<' + doctype.serializeContent(name, null, null) + '>';
+};

node_modules/parse5/lib/serializer/serializer_stream.js

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+'use strict';
+
+var ReadableStream = require('stream').Readable,
+    inherits = require('util').inherits,
+    Serializer = require('./index');
+
+var SerializerStream = module.exports = function (node, options) {
+    ReadableStream.call(this);
+
+    this.serializer = new Serializer(node, options);
+
+    Object.defineProperty(this.serializer, 'html', {
+        //NOTE: To make `+=` concat operator work properly we define
+        //getter which always returns empty string
+        get: function () {
+            return '';
+        },
+        set: this.push.bind(this)
+    });
+};
+
+inherits(SerializerStream, ReadableStream);
+
+//Readable stream implementation
+SerializerStream.prototype._read = function () {
+    this.serializer.serialize();
+    this.push(null);
+};