abolish/src/StringToRules.js

A javascript object validator.

"use strict";
/**
 * Find key or !key
 * @type {RegExp}
 */
const onlyKey = new RegExp(/([!a-zA-Z_*0-9]+)/g);
/**
 * Find key:name
 * @type {RegExp}
 */
const keyColumnVal = new RegExp(/([a-zA-Z_*0-9]+:[a-zA-Z_0-9]+)/g);
/**
 * Find key:"string"
 * @type {RegExp}
 */
const keyColumnValStringDoubleQuotes = new RegExp(/([a-zA-Z_*0-9]+:"[^"]+")/g);
/**
 * Find key:'string'
 * @type {RegExp}
 */
const keyColumnValStringSingleQuotes = new RegExp(/([a-zA-Z_*0-9]+:'[^']+')/g);
/**
 * Find key:`string`
 * @type {RegExp}
 */
const keyColumnValStringGraveAccent = new RegExp(/([a-zA-Z_*0-9]+:`[^`]+`)/g);
/**
 * StringToRules
 * @description
 * Convert string to rule object
 * @param str
 * @constructor
 */
const StringToRules = (str) => {
    let s = str.split("|");
    const keyColumnValObj = {};
    for (let i = 0; i < s.length; i++) {
        const pair = s[i];
        if (pair.match(keyColumnValStringSingleQuotes) ||
            pair.match(keyColumnValStringDoubleQuotes) ||
            pair.match(keyColumnValStringGraveAccent)) {
            const [key, ...value] = pair.split(":");
            let valueToString = value.join(":");
            valueToString = valueToString.substring(1);
            valueToString = valueToString.substring(0, value.length - 1);
            keyColumnValObj[key] = valueToString;
        }
        else if (pair.match(keyColumnVal)) {
            let [key, value] = pair.split(":");
            if (!isNaN(value)) {
                value = Number(value);
            }
            keyColumnValObj[key] = value;
        }
        else if (pair.match(onlyKey)) {
            /**
             * If key is like "key|" or "!key|"
             * ==> {key: true} or {key: false}
             */
            let key = pair;
            let value = true;
            // if !key set value to false
            if (key.substring(0, 1) === "!") {
                key = key.substring(1);
                value = false;
            }
            keyColumnValObj[key] = value;
        }
    }
    return keyColumnValObj;
};
module.exports = StringToRules;