{"id":14799,"library":"parser","title":"Node.js Configurable Parser (Abandoned)","description":"The `parser` package, at version 0.1.4, is an extremely early-stage Node.js module designed to provide a configurable parsing utility. Released in an era when Node.js was still in its nascent stages (targeting Node.js versions 0.4 through 0.9), this library is now considered abandoned. Its original intent was to offer a flexible parsing mechanism for various data structures or input formats, emphasizing configurability. However, due to its age, it lacks compatibility with modern JavaScript syntax (ESM), contemporary Node.js APIs, and has not received any maintenance updates for over a decade. Consequently, it presents significant security vulnerabilities and functional incompatibilities if used in modern environments. There is no active release cadence, and it should not be considered for new projects. Its primary differentiator was its early attempt at a flexible parsing API in the nascent Node.js ecosystem, but this has long been superseded by robust, actively maintained alternatives.","status":"abandoned","version":"0.1.4","language":"javascript","source_language":"en","source_url":"git://github.com/floby/node-parser","tags":["javascript"],"install":[{"cmd":"npm install parser","lang":"bash","label":"npm"},{"cmd":"yarn add parser","lang":"bash","label":"yarn"},{"cmd":"pnpm add parser","lang":"bash","label":"pnpm"}],"dependencies":[],"imports":[{"note":"This package is strictly CommonJS; ES Modules `import` syntax is not supported and will cause errors.","wrong":"import { Parser } from 'parser';","symbol":"Parser","correct":"const Parser = require('parser');"},{"note":"The package likely exports a constructor or factory function, not a default instantiated object. Direct default imports will fail.","wrong":"import parserInstance from 'parser';","symbol":"parserInstance","correct":"const parserInstance = new Parser({ /* config */ });"},{"note":"Given its age, it's unlikely to use modern destructuring patterns for methods directly off the main export. Access methods via an instance.","wrong":"const { parse } = require('parser');","symbol":"parseMethod","correct":"const parser = require('parser');\nconst instance = new parser.Parser(); // Assuming a nested export if the main export is an object\ninstance.parse(data);"}],"quickstart":{"code":"const Parser = require('parser');\n\n// Simulate a basic configurable parser, typical of the era\n// Assuming the Parser constructor accepts an options object\nconst myConfigParser = new Parser({\n  delimiter: ',',\n  quoteChar: '\"',\n  trimFields: true\n});\n\nconst inputData = '\"name\", \"age\", \"city\"\\n\"Alice\", 30, \"New York\"\\n\"Bob\", 24, \"London\"';\n\n// Assuming a 'parse' method on the instance that returns processed data\ntry {\n  // In reality, this ancient package might not handle modern CSV parsing well\n  // This is a conceptual example for quickstart clarity.\n  const parsedResult = myConfigParser.parse(inputData);\n  console.log('Parsed Data:', parsedResult);\n  // A real parser might return an array of objects or a complex AST\n  if (Array.isArray(parsedResult) && parsedResult.length > 0) {\n      console.log('First row:', parsedResult[0]);\n  } else {\n      console.log('Parser returned non-array or empty result. This is a placeholder.');\n  }\n} catch (error) {\n  console.error('Parsing failed:', error.message);\n  console.error('Note: This package is very old and likely incompatible with modern Node.js environments.');\n}","lang":"javascript","description":"Demonstrates basic instantiation of the Parser and attempts to parse example data with a simple configuration."},"warnings":[{"fix":"Do not use this package. Migrate to a modern, actively maintained parsing library (e.g., `csv-parse`, `jison`, `pegjs` for specific parsing needs).","message":"This package is abandoned and targets Node.js versions 0.4-0.9. It is fundamentally incompatible with modern Node.js versions (v12+) and will likely fail to install or run due to deprecated APIs and breaking changes in the Node.js runtime.","severity":"breaking","affected_versions":">=0.1.4"},{"fix":"If absolutely necessary to integrate with a legacy project, ensure your project is configured for CommonJS or use dynamic `import()` within an async context (though this package is unlikely to work even then).","message":"The package uses CommonJS exclusively. Attempting to `import` it using ES Modules syntax will result in `SyntaxError: Cannot use import statement outside a module` or similar errors.","severity":"breaking","affected_versions":">=0.1.4"},{"fix":"Audit existing codebases for its presence and replace it immediately with a secure, current alternative. There is no security fix for this package.","message":"Due to its age and lack of maintenance, this package likely contains significant security vulnerabilities (e.g., prototype pollution, regex denial of service) and should not be used in any production or security-sensitive environment.","severity":"gotcha","affected_versions":">=0.1.4"}],"env_vars":null,"last_verified":"2026-04-19T00:00:00.000Z","next_check":"2026-07-18T00:00:00.000Z","problems":[{"fix":"Change `import { Parser } from 'parser';` to `const Parser = require('parser');`","cause":"Attempting to use ES Modules `import` syntax with a CommonJS-only package.","error":"SyntaxError: Cannot use import statement outside a module"},{"fix":"Ensure the package is correctly installed via `npm install parser`. If running on modern Node.js, reconsider using this abandoned package.","cause":"The package is not installed, or Node.js's module resolution failed due to an old `node_modules` structure or environment PATH issues.","error":"Error: Cannot find module 'parser'"},{"fix":"Verify the actual export structure (e.g., `console.log(require('parser'))`). It might be `new (require('parser').Parser)()` or `require('parser')()` if it's a factory function.","cause":"The `require('parser')` call returned an object or function, but not the expected constructor, or it might be trying to access `new Parser.default()` when it's not a default export.","error":"TypeError: Parser is not a constructor"}],"ecosystem":"npm"}