Awesome GitHub RepositoriesExpression Engines

Polars is a high-performance columnar data processing library designed for efficient analytical workflows. It functions as a structured data library that organizes information into typed columns, utilizing the Apache Arrow memory format to enable zero-copy data sharing and cache-friendly, vectorized operations. The engine is built to handle large-scale tabular datasets, providing both local and distributed analytical runtimes that scale from single-machine environments to multi-node clusters. The project distinguishes itself through a sophisticated lazy query engine that constructs abstract e

Evolver is a self-evolving AI agent framework that uses gene expression programming to autonomously improve agent behaviors through a continuous five-step loop of scanning, selecting, mutating, validating, and solidifying. It functions as an auditable evolution system that records every mutation and selection step, and can translate natural-language problems into executable Python code for automated grading and evaluation. The framework distinguishes itself through a distributed architecture that enables multiple agents to collaborate and share learned experiences across a network. It operate

Cerebro is a desktop application launcher and search interface that provides a minimalist overlay for finding files, launching software, and executing web queries. It functions as a centralized command bar designed for desktop productivity and rapid system navigation. The project features an extensible plugin framework and a modular architecture, allowing third-party add-ons to integrate new tools and capabilities through a standardized API. It also includes a customizable theme engine that enables users to adjust the visual appearance and styles of the workspace interface. The interface sup

ToyDB is a distributed SQL database that provides a system for storing and querying data across multiple nodes. It focuses on maintaining strong consistency and fault tolerance through the implementation of a distributed consensus algorithm. The project distinguishes itself by supporting historical data versioning, enabling time-travel queries to retrieve the state of the database from a specific point in the past. It utilizes multi-version concurrency control to manage ACID transactions and ensure data integrity during concurrent operations. The system covers relational data modeling with t

Notepad3 is a lightweight Windows text editor designed as a replacement for the default system notepad. It is built on the Scintilla text engine to provide source code editing capabilities, including syntax highlighting, code folding, and automatic indentation. The editor is distinguished by its support for registry-free portable execution, allowing the application to run from removable storage without system installation. It features integrated file encryption and decryption tools for secure document management and a regular expression engine for complex search and replace operations across

klib هي مجموعة أدوات شاملة لتوسيع مكتبة C القياسية وبنى البيانات. توفر المجموعة مجموعة من الأدوات الأساسية لإدارة الذاكرة، وتنظيم البيانات، ووظائف الأداة العامة لتطبيقات C المستقلة. يتميز المشروع بإمكانيات متخصصة لتحليل تسلسل المعلومات الحيوية، بما في ذلك تحليل تنسيقات FASTA و FASTQ و Newick وتنفيذ محاذاة تسلسل Smith-Waterman ونماذج ماركوف المخفية. تتضمن المجموعة أيضاً مكتبة حسابات رياضية للروتينات العددية وتقييم التعبيرات، بالإضافة إلى عميل HTTP و FTP خفيف الوزن لاسترجاع البيانات البعيدة ذات الوصول العشوائي. تغطي مجموعة الأدوات سطحاً واسعاً من بدائيات الحوسبة عالية الأداء، بما في ذلك نماذج تعدد الخيوط، وبناء مصفوفة اللاحقة في زمن خطي، وخوارزميات الفرز المحسنة. تنفذ المجموعة مجموعة متنوعة من هياكل فهرسة البيانات الفعالة مثل جداول الهاش مع العنونة المفتوحة، وأشجار B، وأشجار AVL المتداخلة، مدعومة بإدارة التسلسل القائمة على تجمع الذاكرة. تشمل الأدوات الإضافية تحليل بيانات JSON وتفسير وسيطات سطر الأوامر.

cel-go is a Go implementation of the Common Expression Language, providing a type-safe engine for the evaluation of non-Turing complete, side-effect-free expressions. It functions as an embedded expression engine that converts human-readable strings into type-checked abstract syntax trees to ensure safe execution. The system utilizes a compile-once evaluate-many model, parsing and validating expressions into cached programs for repeated execution across different datasets. It further distinguishes itself as a partial state evaluator, using commutative logic to compute results and return resid