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Delete CSSSelector.mjs

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Macide Celik 2019-10-28 15:41:02 +03:00 committed by GitHub
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src/core/operations/CSSSelector.mjs
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@ -1,91 +0,0 @@
/**
* @author n1474335 [n1474335@gmail.com]
* @copyright Crown Copyright 2016
* @license Apache-2.0
*/
import Operation from "../Operation.mjs";
import OperationError from "../errors/OperationError.mjs";
import xmldom from "xmldom";
import nwmatcher from "nwmatcher";
/**
* CSS selector operation
*/
class CSSSelector extends Operation {
/**
* CSSSelector constructor
*/
constructor() {
super();
this.name = "CSS selector";
this.module = "Code";
this.description = "Extract information from an HTML document with a CSS selector";
this.infoURL = "https://wikipedia.org/wiki/Cascading_Style_Sheets#Selector";
this.inputType = "string";
this.outputType = "string";
this.args = [
{
"name": "CSS selector",
"type": "string",
"value": ""
},
{
"name": "Delimiter",
"type": "binaryShortString",
"value": "\\n"
}
];
}
/**
* @param {string} input
* @param {Object[]} args
* @returns {string}
*/
run(input, args) {
const [query, delimiter] = args,
parser = new xmldom.DOMParser();
let dom,
result;
if (!query.length || !input.length) {
return "";
}
try {
dom = parser.parseFromString(input);
} catch (err) {
throw new OperationError("Invalid input HTML.");
}
try {
const matcher = nwmatcher({document: dom});
result = matcher.select(query, dom);
} catch (err) {
throw new OperationError("Invalid CSS Selector. Details:\n" + err.message);
}
const nodeToString = function(node) {
return node.toString();
/* xmldom does not return the outerHTML value.
switch (node.nodeType) {
case node.ELEMENT_NODE: return node.outerHTML;
case node.ATTRIBUTE_NODE: return node.value;
case node.TEXT_NODE: return node.wholeText;
case node.COMMENT_NODE: return node.data;
case node.DOCUMENT_NODE: return node.outerHTML;
default: throw new Error("Unknown Node Type: " + node.nodeType);
}*/
};
return result
.map(nodeToString)
.join(delimiter);
}
}
export default CSSSelector;