Innovenergy_trunk/frontend/node_modules/parse5/lib/serialization/serializer.js

179 lines
5.5 KiB
JavaScript

'use strict';
var DefaultTreeAdapter = require('../tree_adapters/default'),
Doctype = require('../common/doctype'),
Utils = require('../common/utils'),
HTML = require('../common/html');
//Aliases
var $ = HTML.TAG_NAMES,
NS = HTML.NAMESPACES;
//Default serializer options
var DEFAULT_OPTIONS = {
encodeHtmlEntities: true
};
//Escaping regexes
var AMP_REGEX = /&/g,
NBSP_REGEX = /\u00a0/g,
DOUBLE_QUOTE_REGEX = /"/g,
LT_REGEX = /</g,
GT_REGEX = />/g;
//Escape string
function escapeString(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;
}
//Enquote doctype ID
//Serializer
var Serializer = module.exports = function (treeAdapter, options) {
this.treeAdapter = treeAdapter || DefaultTreeAdapter;
this.options = Utils.mergeOptions(DEFAULT_OPTIONS, options);
};
//API
Serializer.prototype.serialize = function (node) {
this.html = '';
this._serializeChildNodes(node);
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) {
if (tn === $.PRE || tn === $.TEXTAREA || tn === $.LISTING) {
var firstChild = this.treeAdapter.getFirstChild(node);
if (firstChild && this.treeAdapter.isTextNode(firstChild)) {
var content = this.treeAdapter.getTextNodeContent(firstChild);
if (content[0] === '\n')
this.html += '\n';
}
}
var childNodesHolder = tn === $.TEMPLATE && ns === NS.HTML ?
this.treeAdapter.getChildNodes(node)[0] :
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 = this.options.encodeHtmlEntities ? escapeString(attr.value, true) : attr.value;
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 += this.options.encodeHtmlEntities ? escapeString(content, false) : content;
};
Serializer.prototype._serializeCommentNode = function (node) {
this.html += '<!--' + this.treeAdapter.getCommentNodeContent(node) + '-->';
};
Serializer.prototype._serializeDocumentTypeNode = function (node) {
var name = this.treeAdapter.getDocumentTypeNodeName(node),
publicId = this.treeAdapter.getDocumentTypeNodePublicId(node),
systemId = this.treeAdapter.getDocumentTypeNodeSystemId(node);
this.html += '<' + Doctype.serializeContent(name, publicId, systemId) + '>';
};