61 lines
2.0 KiB
TypeScript
61 lines
2.0 KiB
TypeScript
import unescapeJS from "unescape-js";
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import type { PropertyNode } from "../index";
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import { isLiteralNode } from "../index";
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const beginsWithLineBreakRegex = /^\s+|\s+$/;
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export function sanitizeScript(js: string, evaluationVersion: number) {
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// We remove any line breaks from the beginning of the script because that
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// makes the final function invalid. We also unescape any escaped characters
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// so that eval can happen
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//default value of evalutaion version is 2
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evaluationVersion = evaluationVersion ? evaluationVersion : 2;
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const trimmedJS = js.replace(beginsWithLineBreakRegex, "");
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return evaluationVersion > 1 ? trimmedJS : unescapeJS(trimmedJS);
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}
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// For the times when you need to know if something truly an object like { a: 1, b: 2}
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// typeof, lodash.isObject and others will return false positives for things like array, null, etc
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export const isTrueObject = (
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item: unknown,
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): item is Record<string, unknown> => {
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return Object.prototype.toString.call(item) === "[object Object]";
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};
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export const getNameFromPropertyNode = (node: PropertyNode): string =>
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isLiteralNode(node.key) ? String(node.key.value) : node.key.name;
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interface Position {
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line: number;
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ch: number;
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}
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export const extractContentByPosition = (
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content: string,
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position: { from: Position; to: Position },
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) => {
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const eachLine = content.split("\n");
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let returnedString = "";
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for (let i = position.from.line; i <= position.to.line; i++) {
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if (i === position.from.line) {
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returnedString =
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position.from.line !== position.to.line
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? eachLine[position.from.line].slice(position.from.ch)
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: eachLine[position.from.line].slice(
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position.from.ch,
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position.to.ch + 1,
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);
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} else if (i === position.to.line) {
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returnedString += eachLine[position.to.line].slice(0, position.to.ch + 1);
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} else {
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returnedString += eachLine[i];
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}
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if (i !== position.to.line) {
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returnedString += "\n";
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}
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}
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return returnedString;
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};
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