planetazuzu
5d7a6500fe
- ✅ Ticket 1.1: Estructura Clean Architecture en backend - ✅ Ticket 1.2: Schemas Zod compartidos - ✅ Ticket 1.3: Refactorización drugs.ts (1362 → 8 archivos modulares) - ✅ Ticket 1.4: Refactorización procedures.ts (3583 → 6 archivos modulares) - ✅ Ticket 1.5: Eliminación de duplicidades (~50 líneas) Cambios principales: - Creada estructura Clean Architecture en backend/src/ - Schemas Zod compartidos en backend/src/shared/schemas/ - Refactorización modular de drugs y procedures - Utilidades genéricas en src/utils/ (filter, validation) - Eliminados scripts obsoletos y documentación antigua - Corregidos errores: QueryClient, import test-error-handling - Build verificado y funcionando correctamente
56 lines
1.6 KiB
Markdown
56 lines
1.6 KiB
Markdown
# buffer-crc32
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[](https://npmjs.org/package/buffer-crc32)
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[](https://github.com/brianloveswords/buffer-crc32/actions/workflows/ci.yml)
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crc32 that works with binary data and fancy character sets, outputs
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buffer, signed or unsigned data and has tests.
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Derived from the sample CRC implementation in the PNG specification: http://www.w3.org/TR/PNG/#D-CRCAppendix
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This package requires Node 8+ to work.
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# install
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```
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npm install buffer-crc32
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```
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# example
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```js
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const crc32 = require('buffer-crc32');
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// works with buffers
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const buf = Buffer([0x00, 0x73, 0x75, 0x70, 0x20, 0x62, 0x72, 0x6f, 0x00]);
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crc32(buf); // -> <Buffer 94 5a ab 4a>
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// has convenience methods for getting signed or unsigned ints
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crc32.signed(buf); // -> -1805997238
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crc32.unsigned(buf); // -> 2488970058
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// will cast to buffer if given a string, so you can
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// directly use foreign characters safely
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crc32('自動販売機'); // -> <Buffer cb 03 1a c5>
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// and works in append mode too
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const partialCrc = crc32('hey');
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const partialCrc = crc32(' ', partialCrc);
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const partialCrc = crc32('sup', partialCrc);
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const partialCrc = crc32(' ', partialCrc);
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const finalCrc = crc32('bros', partialCrc); // -> <Buffer 47 fa 55 70>
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```
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# tests
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This was tested against the output of zlib's crc32 method. You can run
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the tests with`npm test` (requires tap)
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# see also
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https://github.com/alexgorbatchev/node-crc, `crc.buffer.crc32` also
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supports buffer inputs and return unsigned ints (thanks @tjholowaychuk).
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# license
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MIT/X11
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