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Delete Filter.mjs

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Macide Celik 2019-10-29 13:46:52 +03:00 • committed by GitHub
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src/core/operations/Filter.mjs
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/**
* @author n1474335 [n1474335@gmail.com]
* @copyright Crown Copyright 2016
* @license Apache-2.0
*/
import Operation from "../Operation.mjs";
import Utils from "../Utils.mjs";
import {INPUT_DELIM_OPTIONS} from "../lib/Delim.mjs";
import OperationError from "../errors/OperationError.mjs";
import XRegExp from "xregexp";
/**
* Filter operation
*/
class Filter extends Operation {
/**
* Filter constructor
*/
constructor() {
super();
this.name = "Filter";
this.module = "Regex";
this.description = "Splits up the input using the specified delimiter and then filters each branch based on a regular expression.";
this.inputType = "string";
this.outputType = "string";
this.args = [
{
"name": "Delimiter",
"type": "option",
"value": INPUT_DELIM_OPTIONS
},
{
"name": "Regex",
"type": "string",
"value": ""
},
{
"name": "Invert condition",
"type": "boolean",
"value": false
}
];
}
/**
* @param {string} input
* @param {Object[]} args
* @returns {string}
*/
run(input, args) {
const delim = Utils.charRep(args[0]),
reverse = args[2];
let regex;
try {
regex = new XRegExp(args[1]);
} catch (err) {
throw new OperationError(`Invalid regex. Details: ${err.message}`);
}
const regexFilter = function(value) {
return reverse ^ regex.test(value);
};
return input.split(delim).filter(regexFilter).join(delim);
}
}
export default Filter;