Showing 473 open source projects for "regular expressions"

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  • 1
    sd

    sd

    Intuitive find & replace CLI (sed alternative)

    sd is an intuitive find-and-replace CLI. Painless regular expressions. sd uses regex syntax that you already know from JavaScript and Python. Forget about dealing with quirks of sed or awk - get productive immediately. Non-regex find & replace. No more backslashes or remembering which characters are special and need to be escaped. Find & replace expressions are split up, which makes them easy to read and write.
    Downloads: 1 This Week
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  • 2
    Melody

    Melody

    Melody is a language that compiles to regular expressions

    Melody is a language that compiles to regular expressions and aims to be more easily readable and maintainable. All quantifiers can be preceded by lazy to match the least amount of characters rather than the most characters (greedy).
    Downloads: 0 This Week
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  • 3
    RE2/J

    RE2/J

    linear time regular expression matching in Java

    ...This makes RE2/J ideal for applications that must handle user-supplied regular expressions securely without the risk of denial-of-service through regex backtracking. While it omits some advanced features like backreferences and certain Java regex options, it supports the vast majority of practical expressions used in production code. RE2/J thus provides a reliable, safe, and scalable alternative for developers.
    Downloads: 0 This Week
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  • 4
    re2

    re2

    Alternative to backtracking regular expression engines

    ...In POSIX mode, RE2 accepts standard POSIX (egrep) syntax regular expressions. In Perl mode, RE2 accepts most Perl operators. The only excluded ones are those that require backtracking (and its potential for exponential runtime) to implement. These include backreferences (submatching is still okay) and generalized assertions. The Syntax page documents the supported Perl-mode syntax in detail.
    Downloads: 0 This Week
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  • 5
    grex

    grex

    A command-line tool and library for generating regular expressions

    grex is a library as well as a command-line utility that is meant to simplify the often complicated and tedious task of creating regular expressions. It does so by automatically generating a single regular expression from user-provided test cases. The resulting expression is guaranteed to match the test cases which it was generated from. This project has started as a Rust port of the JavaScript tool regexgen written by Devon Govett. Although a lot of further useful features could be added to it, its development was apparently ceased several years ago. ...
    Downloads: 0 This Week
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  • 6
    Dgraph

    Dgraph

    The Only Native GraphQL Database With A Graph Backend

    ...Dgraph is able to do things that other graph DBs can’t. It provides consistent replication, automatic data movement for shard balancing, distributed ACID transactions, as well as native support for full text search, regular expressions and geo search. If you have over 10 SQL tables interconnected via foreign keys, or sparse data that don’t fit neatly into SQL tables; or if you just want a simple and flexible schema, and prioritize speed and performance at scale, Dgraph is the best choice for you. It’s fully equipped with everything you need and more.
    Downloads: 2 This Week
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  • 7
    Fluent Reader

    Fluent Reader

    Modern desktop RSS reader built with Electron, React, and Fluent UI

    ...Does Source only come with snippets? Configure to load full content with Mercury Parser, load webpage in the app, or open externally by default. Find anything you want with the power of regular expressions. Search in both titles and full contents of articles. Mark articles as starred, hidden, or unread and filter as they arrive with custom rules based on regular expressions.
    Downloads: 9 This Week
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  • 8
    uBlacklist

    uBlacklist

    Blocks specific sites from appearing in Google search results

    uBlacklist is a Google Search filter for Chrome and Firefox. uBlacklist requires many site permissions on install. They are necessary to support all domains where Google Search is provided (google.com, google.ac, google.ad, ...). You can install uBlacklist from Chrome Web Store, Firefox Add-ons or Mac App Store. To block a site that you are looking at from appearing on the search result page, click the toolbar icon. A "Block this site" dialog will be shown. In recent versions of Chrome, the...
    Downloads: 2 This Week
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  • 9
    PowerToys

    PowerToys

    System utilities to maximize productivity

    PowerToys is a set of utilities for power users to tune and streamline their Windows experience for greater productivity.
    Downloads: 26 This Week
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  • 10
    Scrapy

    Scrapy

    A fast, high-level web crawling and web scraping framework

    Scrapy is a fast, open source, high-level framework for crawling websites and extracting structured data from these websites. Portable and written in Python, it can run on Windows, Linux, macOS and BSD. Scrapy is powerful, fast and simple, and also easily extensible. Simply write the rules to extract the data, and add new functionality if you wish without having to touch the core. Scrapy does the rest, and can be used in a number of applications. It can be used for data mining, monitoring...
    Downloads: 22 This Week
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  • 11
    Ace Editor

    Ace Editor

    Ace (Ajax.org Cloud9 Editor)

    Ace is an embeddable code editor written in JavaScript. It matches the features and performance of native editors such as Sublime, Vim and TextMate. It can be easily embedded in any web page and JavaScript application. Ace is maintained as the primary editor for Cloud9 IDE and is the successor of the Mozilla Skywriter (Bespin) project.
    Downloads: 8 This Week
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  • 12
    Apache Log4j

    Apache Log4j

    Apache Log4j 2 is a versatile, feature-rich, efficient logging API

    Apache Log4j is a versatile, industrial-grade Java logging framework composed of an API, its implementation, and components to assist the deployment for various use cases. Log4j is used by 8% of the Maven ecosystem and listed as one of the top 100 critical open source software projects. The project is actively maintained by a team of several volunteers and supported by a big community.
    Downloads: 22 This Week
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  • 13
    ecode

    ecode

    Lightweight multi-platform code editor designed for modern hardware

    ecode is a lightweight multi-platform code editor designed for modern hardware with a focus on responsiveness and performance. It has been developed with the hardware-accelerated eepp GUI, which provides the core technology for the editor. The project comes as the first serious project using the eepp GUI, and it's currently being developed to improve the eepp GUI library as part of one of its main objectives.
    Downloads: 10 This Week
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  • 14
    EverythingToolbar

    EverythingToolbar

    Everything integration for the Windows taskbar

    ...Create custom Open with actions by navigating to Settings → Custom actions. Enable Automatically apply rules based on condition to execute commands automatically based on file type and regular expressions. Leave the regex field empty to display the action only in the context menu.
    Downloads: 43 This Week
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  • 15
    py-pdf-parser

    py-pdf-parser

    A Python tool to help extracting information from structured PDFs

    py-pdf-parser is a Python tool designed to help extract information from structured PDFs. It provides a simple interface to define parsing rules and extract data from PDF documents. ​
    Downloads: 0 This Week
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  • 16
    PDF4QT

    PDF4QT

    Open source PDF editor

    ...Basic browsing and lots of other functionalities, such as encryption, reading a document, verification of digital signatures, editing of annotations, searching for text using regular expressions, drawing pages into an image, and much more. Several plug-ins are available.
    Downloads: 41 This Week
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  • 17
    Guidance

    Guidance

    A guidance language for controlling large language models

    Guidance is an efficient programming paradigm for steering language models. With Guidance, you can control how output is structured and get high-quality output for your use case—while reducing latency and cost vs. conventional prompting or fine-tuning. It allows users to constrain generation (e.g. with regex and CFGs) as well as to interleave control (conditionals, loops, tool use) and generation seamlessly.
    Downloads: 1 This Week
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  • 18
    Serialize JavaScript

    Serialize JavaScript

    Serialize JavaScript to a superset of JSON

    Serialize JavaScript to a superset of JSON that includes regular expressions, dates and functions. The code in this package began its life as an internal module to express-state. To expand its usefulness, it now lives as serialize-javascript — an independent package on npm. A primary feature of this package is to serialize code to a string of literal JavaScript which can be embedded in an HTML document by adding it as the contents of the script element.
    Downloads: 2 This Week
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  • 19
    Quod Libet

    Quod Libet

    Music player and music library manager for Linux, Windows, and macOS

    ...Quod Libet is a GTK+-based audio player written in Python, using the Mutagen tagging library. It’s designed around the idea that you know how to organize your music better than we do. It lets you make playlists based on regular expressions (don’t worry, regular searches work too). It lets you display and edit any tags you want in the file, for all the file formats it supports. Unlike some, Quod Libet will scale to libraries with tens of thousands of songs. It also supports most of the features you’d expect from a modern media player.
    Downloads: 3 This Week
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  • 20
    find-my-way

    find-my-way

    A crazy fast HTTP router

    ...You can set a custom length for parameters in parametric (standard, regex and multi) routes by using maxParamLength option, the default value is 100 characters. If you are using a regex-based route, find-my-way will throw an error if detects potentially catastrophic exponential-time regular expressions (internally uses safe-regex2). According to RFC3986, find-my-way is case-sensitive by default. You can disable this by setting the caseSensitive option to false: in that case, all paths will be matched as lowercase, but the route parameters or wildcards will maintain their original letter casing.
    Downloads: 0 This Week
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  • 21
    Python 100 Days

    Python 100 Days

    Python - From Novice to Master in 100 Days

    ...It starts with foundational syntax, control flow, data structures, and functions, then advances through object-oriented programming, file I/O, exceptions, and modules. The middle sections focus on real-world Python applications, including working with CSV, Excel, Word, PowerPoint, PDFs, images, email/SMS, and regular expressions. The curriculum expands into databases and SQL, Linux essentials, web fundamentals, and a substantial Practical Django track that covers ORM, sessions, RESTful APIs, caching with Redis, asynchronous tasks with Celery, authentication, testing, and deployment. Data analysis and visualization receive dedicated coverage via NumPy, pandas, matplotlib, seaborn, and pyecharts, followed by an applied machine learning track with kNN, trees, Bayes, regression, clustering, ensembles, and neural networks.
    Downloads: 9 This Week
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  • 22
    Automa.jl

    Automa.jl

    A julia code generator for regular expressions

    Automa is a regex-to-Julia compiler. By compiling regex to Julia code in the form of Expr objects, Automa provides facilities to create efficient and robust regex-based lexers, tokenizers and parsers using Julia's metaprogramming capabilities. You can view Automa as a regex engine that can insert arbitrary Julia code into its input-matching process, which will be executed when certain parts of the regex match an input.
    Downloads: 0 This Week
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  • 23
    Serilog

    Serilog

    Simple .NET logging with fully-structured events

    Like many other libraries for .NET, Serilog provides diagnostic logging to files, the console, and elsewhere. It is easy to set up, has a clean API, and is portable between recent .NET platforms. Unlike other logging libraries, Serilog is built with powerful structured event data in mind. Serilog message templates are a simple DSL extending .NET format strings. Parameters can be named, and their values are serialized as properties on the event for incredible searching and sorting...
    Downloads: 26 This Week
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  • 24
    Micronaut Data

    Micronaut Data

    Ahead of Time Data Repositories

    ...The problem is worse when combined with Hibernate which maintains its own meta-model as you end up with duplicate meta-models. Micronaut Data instead moves this model into the compiler. Both GORM and Spring Data use regular expressions and pattern matching in combination with runtime generated proxies to translate a method definition on a Java interface into a query at runtime. No such runtime translation exists in Micronaut Data and this work is carried out by the Micronaut compiler at compilation time.
    Downloads: 2 This Week
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  • 25
    Python-programming-exercises

    Python-programming-exercises

    100+ Python challenging programming exercises

    ...It is designed to help learners practice problem solving through short exercises rather than full applications. The exercises cover fundamentals such as strings, numbers, loops, lists, dictionaries, functions, regular expressions, file handling, classes, generators, and algorithmic thinking. Many problems include both a prompt and a suggested solution, making the repository useful for self-study and interview-style practice. The project is especially helpful for beginners who already know basic syntax and want structured repetition. It can also serve as a compact reference for instructors or mentors who need practical Python exercises.
    Downloads: 0 This Week
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