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103 lines
4.0 KiB
JavaScript
103 lines
4.0 KiB
JavaScript
/**
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* XMLtoObject - Converts XML into a JavaScript value or object.
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* GitHub: https://github.com/Pevtrick/XMLtoObject
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* by Patrick Jentsch: https://github.com/Pevtrick
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*/
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/**
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* The XMLDocument.toObject() method converts the XMLDocument into a JavaScript value or object.
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* @param {String} [attributePrefix=] - A Prefix, which is added to all properties generated by XML attributes.
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* @returns {Object} - The converted result.
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*/
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XMLDocument.prototype.toObject = function(attributePrefix='') {
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let obj = {};
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obj[this.documentElement.nodeName] = this.documentElement.toObject(attributePrefix);
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return obj;
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};
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/**
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* The Node.toObject() method converts the Node into a JavaScript value or object.
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* @param {String} [attributePrefix=] - A Prefix, which is added to all properties generated by XML attributes.
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* @returns {Object|String|null} - The converted result.
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*/
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Node.prototype.toObject = function(attributePrefix='') {
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let obj = null;
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switch (this.nodeType) {
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case Node.ELEMENT_NODE:
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let hasAttributes = this.attributes.length > 0;
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let hasChildNodes = this.childNodes.length > 0;
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/* Stop conversion if the Node doesn't contain any attributes or child nodes */
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if (!(hasAttributes || hasChildNodes)) {
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break;
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}
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obj = {};
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/* Convert attributes */
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for (let attribute of this.attributes) {
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obj[`attributePrefix${attribute.name}`] = attribute.value;
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}
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/* Convert child nodes */
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for (let childNode of this.childNodes) {
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switch (childNode.nodeType) {
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case Node.ELEMENT_NODE:
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break;
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case Node.TEXT_NODE:
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/* Check whether the child text node is the only child of the current node. */
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if (!hasAttributes && this.childNodes.length === 1) {
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obj = childNode.toObject(attributePrefix);
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continue;
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}
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if (childNode.data.trim() === '') {continue;}
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break;
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default:
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/* This recursion leads to a console message. */
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childNode.toObject(attributePrefix);
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continue;
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}
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/**
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* If the child node is the first of its type in this childset,
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* process it and add it directly as a property to the return object.
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* If not add it to an array which is set as a property of the return object.
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*/
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if (childNode.nodeName in obj) {
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if (!Array.isArray(obj[childNode.nodeName])) {
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obj[childNode.nodeName] = [obj[childNode.nodeName]];
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}
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obj[childNode.nodeName].push(childNode.toObject(attributePrefix));
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} else {
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obj[childNode.nodeName] = childNode.toObject(attributePrefix);
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}
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}
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break;
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case Node.TEXT_NODE:
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if (this.data.trim() !== '') {obj = this.data;}
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break;
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case Node.COMMENT_NODE:
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console.log('Skipping comment node:');
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console.log(node);
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break;
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case Node.DOCUMENT_NODE:
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obj = {};
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obj[this.documentElement.nodeName] = this.documentElement.toObject(attributePrefix);
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break;
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default:
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/**
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* The following node types are not processed because they don't offer data, which has to be stored in the object:
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* Node.PROCESSING_INSTRUCTION_NODE, Node.DOCUMENT_TYPE_NODE, Node.DOCUMENT_FRAGMENT_NODE
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* The following node types are deprecated and therefore not supported by this function:
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* Node.ATTRIBUTE_NODE, Node.CDATA_SECTION_NODE, Node.ENTITY_REFERENCE_NODE, Node.ENTITY_NODE, Node.NOTATION_NODE
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*/
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console.log(`Node type: '${this.nodeType}' is not supported.`);
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console.log(node);
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break;
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}
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return obj;
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}
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