更新
This commit is contained in:
Your Name
+54
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'use strict';
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const errorEx = require('error-ex');
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const fallback = require('json-parse-even-better-errors');
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const {default: LinesAndColumns} = require('lines-and-columns');
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const {codeFrameColumns} = require('@babel/code-frame');
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const JSONError = errorEx('JSONError', {
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fileName: errorEx.append('in %s'),
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codeFrame: errorEx.append('\n\n%s\n')
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});
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const parseJson = (string, reviver, filename) => {
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if (typeof reviver === 'string') {
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filename = reviver;
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reviver = null;
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}
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try {
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try {
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return JSON.parse(string, reviver);
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} catch (error) {
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fallback(string, reviver);
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throw error;
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}
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} catch (error) {
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error.message = error.message.replace(/\n/g, '');
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const indexMatch = error.message.match(/in JSON at position (\d+) while parsing/);
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const jsonError = new JSONError(error);
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if (filename) {
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jsonError.fileName = filename;
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}
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if (indexMatch && indexMatch.length > 0) {
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const lines = new LinesAndColumns(string);
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const index = Number(indexMatch[1]);
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const location = lines.locationForIndex(index);
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const codeFrame = codeFrameColumns(
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string,
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{start: {line: location.line + 1, column: location.column + 1}},
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{highlightCode: true}
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);
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jsonError.codeFrame = codeFrame;
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}
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throw jsonError;
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}
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};
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parseJson.JSONError = JSONError;
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module.exports = parseJson;
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+9
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MIT License
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Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (https://sindresorhus.com)
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Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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+21
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The MIT License (MIT)
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Copyright (c) 2015 Brian Donovan
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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+33
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# lines-and-columns
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Maps lines and columns to character offsets and back. This is useful for parsers
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and other text processors that deal in character ranges but process text with
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meaningful lines and columns.
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## Install
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```
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$ npm install [--save] lines-and-columns
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```
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## Usage
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```js
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import { LinesAndColumns } from 'lines-and-columns'
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const lines = new LinesAndColumns(
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`table {
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border: 0
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}`
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)
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lines.locationForIndex(9)
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// { line: 1, column: 1 }
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lines.indexForLocation({ line: 1, column: 2 })
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// 10
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```
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## License
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MIT
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Generated
Vendored
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export declare type SourceLocation = {
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line: number;
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column: number;
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};
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export declare class LinesAndColumns {
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private string;
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private offsets;
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constructor(string: string);
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locationForIndex(index: number): SourceLocation | null;
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indexForLocation(location: SourceLocation): number | null;
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private lengthOfLine;
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}
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export default LinesAndColumns;
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Generated
Vendored
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"use strict";
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exports.__esModule = true;
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exports.LinesAndColumns = void 0;
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var LF = '\n';
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var CR = '\r';
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var LinesAndColumns = /** @class */ (function () {
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function LinesAndColumns(string) {
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this.string = string;
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var offsets = [0];
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for (var offset = 0; offset < string.length;) {
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switch (string[offset]) {
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case LF:
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offset += LF.length;
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offsets.push(offset);
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break;
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case CR:
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offset += CR.length;
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if (string[offset] === LF) {
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offset += LF.length;
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}
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offsets.push(offset);
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break;
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default:
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offset++;
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break;
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}
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}
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this.offsets = offsets;
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}
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LinesAndColumns.prototype.locationForIndex = function (index) {
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if (index < 0 || index > this.string.length) {
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return null;
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}
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var line = 0;
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var offsets = this.offsets;
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while (offsets[line + 1] <= index) {
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line++;
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}
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var column = index - offsets[line];
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return { line: line, column: column };
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};
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LinesAndColumns.prototype.indexForLocation = function (location) {
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var line = location.line, column = location.column;
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if (line < 0 || line >= this.offsets.length) {
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return null;
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}
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if (column < 0 || column > this.lengthOfLine(line)) {
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return null;
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}
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return this.offsets[line] + column;
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};
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LinesAndColumns.prototype.lengthOfLine = function (line) {
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var offset = this.offsets[line];
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var nextOffset = line === this.offsets.length - 1
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? this.string.length
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: this.offsets[line + 1];
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return nextOffset - offset;
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};
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return LinesAndColumns;
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}());
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exports.LinesAndColumns = LinesAndColumns;
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exports["default"] = LinesAndColumns;
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+49
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{
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"name": "lines-and-columns",
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"version": "1.2.4",
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"description": "Maps lines and columns to character offsets and back.",
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"keywords": [
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"lines",
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"columns",
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"parser"
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],
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"homepage": "https://github.com/eventualbuddha/lines-and-columns#readme",
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"bugs": {
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"url": "https://github.com/eventualbuddha/lines-and-columns/issues"
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},
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"repository": {
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"type": "git",
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"url": "https://github.com/eventualbuddha/lines-and-columns.git"
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},
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"license": "MIT",
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"author": "Brian Donovan <brian@donovans.cc>",
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"main": "./build/index.js",
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"types": "./build/index.d.ts",
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"files": [
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"build"
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],
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"scripts": {
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"build:watch": "tsc --build tsconfig.build.json --watch",
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"lint": "eslint .",
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"lint:fix": "eslint . --fix",
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"test": "is-ci test:coverage test:watch",
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"test:coverage": "jest --coverage",
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"test:watch": "jest --watch"
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},
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"devDependencies": {
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"@types/jest": "^27.0.3",
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"@types/node": "^16.11.9",
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"@typescript-eslint/eslint-plugin": "^5.4.0",
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"@typescript-eslint/parser": "^5.4.0",
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"esbuild": "^0.13.15",
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"esbuild-runner": "^2.2.1",
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"eslint": "^8.2.0",
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"eslint-config-prettier": "^8.3.0",
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"eslint-plugin-prettier": "^4.0.0",
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"is-ci-cli": "^2.2.0",
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"jest": "^27.3.1",
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"prettier": "^2.4.1",
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"semantic-release": "^18.0.0",
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"typescript": "^4.5.2"
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}
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}
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+45
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{
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"name": "parse-json",
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"version": "5.2.0",
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"description": "Parse JSON with more helpful errors",
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"license": "MIT",
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"repository": "sindresorhus/parse-json",
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"funding": "https://github.com/sponsors/sindresorhus",
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"author": {
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"name": "Sindre Sorhus",
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"email": "sindresorhus@gmail.com",
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"url": "https://sindresorhus.com"
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},
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"engines": {
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"node": ">=8"
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},
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"scripts": {
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"test": "xo && nyc ava"
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},
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"files": [
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"index.js",
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"vendor"
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],
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"keywords": [
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"parse",
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"json",
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"graceful",
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"error",
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"message",
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"humanize",
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"friendly",
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"helpful",
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"string"
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],
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"dependencies": {
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"@babel/code-frame": "^7.0.0",
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"error-ex": "^1.3.1",
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"json-parse-even-better-errors": "^2.3.0",
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"lines-and-columns": "^1.1.6"
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},
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"devDependencies": {
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"ava": "^1.4.1",
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"nyc": "^14.1.1",
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"xo": "^0.24.0"
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}
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}
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+119
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# parse-json
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> Parse JSON with more helpful errors
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## Install
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```
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$ npm install parse-json
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```
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## Usage
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```js
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const parseJson = require('parse-json');
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const json = '{\n\t"foo": true,\n}';
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JSON.parse(json);
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/*
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undefined:3
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}
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^
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SyntaxError: Unexpected token }
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*/
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parseJson(json);
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/*
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JSONError: Unexpected token } in JSON at position 16 while parsing near '{ "foo": true,}'
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1 | {
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2 | "foo": true,
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> 3 | }
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| ^
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*/
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parseJson(json, 'foo.json');
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/*
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JSONError: Unexpected token } in JSON at position 16 while parsing near '{ "foo": true,}' in foo.json
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1 | {
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2 | "foo": true,
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> 3 | }
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| ^
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*/
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// You can also add the filename at a later point
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try {
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parseJson(json);
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} catch (error) {
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if (error instanceof parseJson.JSONError) {
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error.fileName = 'foo.json';
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}
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throw error;
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}
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/*
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JSONError: Unexpected token } in JSON at position 16 while parsing near '{ "foo": true,}' in foo.json
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1 | {
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2 | "foo": true,
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> 3 | }
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| ^
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*/
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```
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## API
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### parseJson(string, reviver?, filename?)
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Throws a `JSONError` when there is a parsing error.
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#### string
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Type: `string`
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#### reviver
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Type: `Function`
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Prescribes how the value originally produced by parsing is transformed, before being returned. See [`JSON.parse` docs](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/parse#Using_the_reviver_parameter
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) for more.
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#### filename
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Type: `string`
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Filename displayed in the error message.
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### parseJson.JSONError
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Exposed for `instanceof` checking.
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#### fileName
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Type: `string`
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The filename displayed in the error message.
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#### codeFrame
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Type: `string`
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The printable section of the JSON which produces the error.
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---
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||||
<div align="center">
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||||
<b>
|
||||
<a href="https://tidelift.com/subscription/pkg/npm-parse-json?utm_source=npm-parse-json&utm_medium=referral&utm_campaign=readme">Get professional support for this package with a Tidelift subscription</a>
|
||||
</b>
|
||||
<br>
|
||||
<sub>
|
||||
Tidelift helps make open source sustainable for maintainers while giving companies<br>assurances about security, maintenance, and licensing for their dependencies.
|
||||
</sub>
|
||||
</div>
|
||||
Reference in New Issue
Block a user