Parse Framework

Common errors

• Module not found: Can't resolve 'parse-framework'

  cause The package might not be installed, or more commonly, it has been removed from `node_modules` during a cleanup, or the `package.json` entry is missing.
  fix First, ensure `parse-framework` is listed in your `package.json`. If it is, run `npm install` or `yarn install`. However, as the package is deprecated, the recommended fix is to install `sparser` instead: `npm install sparser` or `yarn add sparser`, and update your imports.

• TypeError: parse-framework is not a constructor

  cause This error often occurs when attempting to `new` a module that is not a class or when mixing CommonJS `require` with ES Modules `import` for a package not designed for it, or trying to use a named export as a default.
  fix Verify your import statement (e.g., `import { Parser } from 'parse-framework';` vs `import Parser from 'parse-framework';`) against the package's actual exports. More importantly, migrate to `Sparser` where the API is actively maintained and documented.

Warnings

• breaking The `parse-framework` package has been officially deprecated and renamed to `Sparser`. All future development, maintenance, and bug fixes will occur under the `Sparser` package. Continuing to use `parse-framework` means no access to updates, security patches, or new features.
  Fix: Migrate all usage to the `sparser` package. This will involve updating package dependencies, `import` statements, and potentially adapting to any API changes introduced in `Sparser` (though efforts were made for a smooth transition, changes may exist).
• gotcha Attempting to install or use `parse-framework` in new projects will result in using an unsupported and unmaintained version of the parsing framework. This poses risks for security, stability, and compatibility with modern JavaScript ecosystems.
  Fix: Always install and use the `sparser` package instead. If you encounter old documentation or tutorials referencing `parse-framework`, substitute it with `sparser`.
• deprecated All versions of `parse-framework` are considered deprecated. There will be no further releases, security advisories, or community support for this package. This includes versions `1.1.1` through `2.5.6`.
  Fix: Update your `package.json` to replace `parse-framework` with `sparser` and then run `npm install` or `yarn install` to update your dependencies. Review the `Sparser` documentation for the latest API.

Install

• npm install parse-framework npm
• yarn add parse-framework yarn
• pnpm add parse-framework pnpm

Imports

• Parser
  wrong:

  const Parser = require('parse-framework');

  correct:

  import { Parser } from 'parse-framework';

  For ESM environments. Using `require()` is a common mistake when migrating from CJS or in mixed environments. This package is deprecated; avoid new usage.
• Lexer
  wrong:

  import Lexer from 'parse-framework';

  correct:

  import { Lexer } from 'parse-framework';

  Assuming Lexer was a named export for tokenization utilities. Avoid default imports if it's a named export. This package is deprecated; avoid new usage.
• ParseFunction
  wrong:

  import parse from 'parse-framework';

  correct:

  import { parse as ParseFunction } from 'parse-framework';

  If a top-level 'parse' function was provided, it would likely be a named export. Renaming on import (`as ParseFunction`) is good practice to avoid conflicts. This package is deprecated; avoid new usage.

Quickstart

Demonstrates the historical usage pattern of `parse-framework` with a basic text parsing example, while explicitly highlighting its deprecated status and recommending migration to `Sparser`.

// IMPORTANT: 'parse-framework' is deprecated. Please migrate to 'Sparser'.
// This example demonstrates how 'parse-framework' *might have been used*.
// It is provided for historical context, not for active development.
import { Parser } from 'parse-framework';

// In a real framework, grammar rules and parsing logic would be defined here.
// This is a simplified mock to illustrate potential usage.
class BasicTextParser extends Parser {
  constructor() {
    super();
    console.log('[DEPRECATED] Initializing BasicTextParser from parse-framework.');
  }

  parse(input) {
    if (typeof input !== 'string') {
      console.warn('[DEPRECATED] Input is not a string, attempting to coerce.');
      input = String(input);
    }
    // Simulate parsing: split words and analyze basic structure.
    const tokens = input.toLowerCase().split(/\s+/).filter(Boolean);
    console.log(`[DEPRECATED] Processing input: "${input}"`);
    console.log(`[DEPRECATED] Identified tokens: ${JSON.stringify(tokens)}`);
    
    // Return a very basic Abstract Syntax Tree (AST) structure.
    return {
      type: 'Document',
      children: tokens.map(token => ({
        type: 'Word',
        value: token
      })),
      tokenCount: tokens.length
    };
  }
}

async function runDeprecatedParseExample() {
  const parser = new BasicTextParser();
  const textToParse = "Hello world, this is a test string.";
  const result = parser.parse(textToParse);
  console.log("[DEPRECATED] Parsing result (simplified AST):", JSON.stringify(result, null, 2));

  const numericInput = 12345;
  const numericResult = parser.parse(numericInput);
  console.log("[DEPRECATED] Parsing numeric input (coerced):", JSON.stringify(numericResult, null, 2));

  console.warn("\nWARNING: The 'parse-framework' package is deprecated and no longer maintained. \nPlease transition to its successor, 'Sparser', for all new projects and existing migrations: https://www.npmjs.com/package/sparser");
}

runDeprecatedParseExample();