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regular expressions 101 VS OpenGrok

Compare regular expressions 101 VS OpenGrok and see what are their differences

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regular expressions 101 logo regular expressions 101

Extensive regex tester and debugger with highlighting for PHP, PCRE, Python and JavaScript.

OpenGrok logo OpenGrok

OpenGrok is a fast and usable source code search and cross reference engine.
  • regular expressions 101 Landing page
    Landing page //
    2023-07-30
  • OpenGrok Landing page
    Landing page //
    2021-10-20

regular expressions 101 features and specs

  • Interactive Learning
    Regex101 provides an interactive environment where users can test and learn regular expressions in real-time, making the learning process more engaging and practical.
  • Extensive Documentation
    The site offers extensive documentation and references for different regular expression flavors (PCRE, JavaScript, Python, and Golang), facilitating easy access to syntax and usage examples.
  • Error Highlighting
    Regex101 highlights errors in your regular expressions and provides explanations, which helps users quickly identify and correct mistakes.
  • Quick Reference
    A quick reference guide is available on the platform, which helps users look up common regular expression tokens and their meanings without leaving the page.
  • Saved Workspaces
    Users can save their regular expressions and test cases in workspaces, making it convenient to revisit and continue working on them at a later time.
  • Community Support
    The platform has community features wherein users can share their regular expressions and get feedback or suggestions from others.

Possible disadvantages of regular expressions 101

  • Limited to Browser
    Regex101 is a web-based tool, and its usage is restricted to browsers with internet access, limiting its offline availability and performance in a development environment.
  • User Interface Complexity
    For beginners, the user interface can be somewhat overwhelming due to the numerous options and features available, leading to a steeper learning curve.
  • Performance Limitations
    While sufficient for most use cases, Regex101 may struggle with very large datasets or extremely complex regular expressions, causing performance issues.
  • Dependency on External Product
    Relying on an external service means users are dependent on the platform's availability and continued maintenance, which can be a risk if the service goes down or changes significantly.
  • Potential Overreliance
    Frequent use of Regex101 for developing regular expressions may lead to an overreliance on the tool, potentially hindering the development of strong, intrinsic regex skills.

OpenGrok features and specs

  • Efficient Code Search
    OpenGrok provides powerful full-text code search capabilities, which allow developers to quickly find relevant code fragments, classes, and functions across potentially large codebases.
  • Source Code Navigation
    It facilitates easy navigation through source code, enabling users to explore code structure, variable definitions, and references, enhancing understanding and productivity.
  • Supports Multiple Version Control Systems
    OpenGrok is compatible with various version control systems such as Git, Mercurial, and Subversion, making it versatile and adaptable to different development environments.
  • Web Interface
    The tool provides a user-friendly web interface, allowing remote access to code repositories and making it easier for teams to collaborate and share code insights.
  • Cross-Referencing
    OpenGrok includes cross-referencing capabilities that enable developers to identify and analyze code dependencies and connections, improving code comprehension and maintenance.

Possible disadvantages of OpenGrok

  • Initial Setup Complexity
    Setting up OpenGrok can be challenging, requiring considerable configuration and resources, particularly for large and complex codebases.
  • Resource Intensive
    The tool can be resource-intensive, requiring substantial CPU and memory, especially when indexing large repositories, which may impact performance.
  • Limited Language Support
    OpenGrok may not support all programming languages natively for indexing and searching, potentially limiting its applicability in heterogeneous environments.
  • Maintenance Overhead
    Ensuring that OpenGrok remains efficient and up-to-date can entail ongoing maintenance, including regular updates and re-indexing of repositories.
  • Scalability Challenges
    While OpenGrok is powerful, scaling it for very large enterprise environments or numerous users can present challenges, requiring infrastructure considerations and optimizations.

regular expressions 101 videos

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OpenGrok videos

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How to setup Opengrok on Linux (In less than 2 minutes)

More videos:

  • Review - Writing and Rewriting Web Apps in nginx.conf — URL shortening, OpenGrok05 by Constantine Murenin

Category Popularity

0-100% (relative to regular expressions 101 and OpenGrok)

regular expressions 101

OpenGrok

Regular Expressions
100 100%
Regular Expressions
0% 0
Git
0 0%
Git
100% 100
Programming Tools
100 100%
Programming Tools
0% 0
Code Collaboration
0 0%
Code Collaboration
100% 100

User comments

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Social recommendations and mentions

Based on our record, regular expressions 101 seems to be more popular. It has been mentiond 881 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

regular expressions 101 mentions (881)

  • Regex Isn't Hard (2023)
    In practice, the first unpaired ] is treated as an ordinary character (at least according to https://regex101.com/) - which does nothing to make this regex fit for its intended purpose. I'm not sure whether this is according to spec. (I think it is, though that does not really matter compared to what the implementations actually do.) Characters which are sometimes special, depending on context, are one more thing... - Source: Hacker News / 24 days ago
  • Regex Isn't Hard (2023)
    > unreadable once written (to me anyway) https://regex101.com can explain your regex back to you. - Source: Hacker News / 24 days ago
  • Catching Trailing Spaces - A Superhero's Story!
    To try out our newfound regex, I will use the website called RegEx101. It's a superhero favourite, so you better bookmark it for later 🔖. - Source: dev.to / about 2 months ago
  • How I accidentally wrote a simple Markdown editor
    Let's break it down a bit. You can use Regex101 to follow me. - Source: dev.to / 3 months ago
  • 22 Unique Developer Resources You Should Explore
    URL: https://regex101.com What it does: Test and debug regular expressions with instant explanations. Why it's great: Simplifies regex learning and ensures patterns work as intended. - Source: dev.to / 4 months ago
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OpenGrok mentions (0)

We have not tracked any mentions of OpenGrok yet. Tracking of OpenGrok recommendations started around Mar 2021.

What are some alternatives?

When comparing regular expressions 101 and OpenGrok, you can also consider the following products

RegExr - RegExr.com is an online tool to learn, build, and test Regular Expressions.

Sourcegraph - Sourcegraph is a free, self-hosted code search and intelligence server that helps developers find, review, understand, and debug code. Use it with any Git code host for teams from 1 to 10,000+.

rubular - A ruby based regular expression editor

Atlassian Fisheye - With FishEye you can search code, visualize and report on activity and find for commits, files, revisions, or teammates across SVN, Git, Mercurial, CVS and Perforce.

Expresso - The award-winning Expresso editor is equally suitable as a teaching tool for the beginning user of regular expressions or as a full-featured development environment for the experienced programmer with an extensive knowledge of regular expressions.

Krugle - Krugle is the complete enterprise solution for search targeted to the development organization. 

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