zorex VS reng

Compare zorex vs reng and see what are their differences.

zorex

Zorex: the omnipotent regex engine (by hexops)
RegExp Regex pattern-matching
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reng

Simple toy regex engine implemented using backtracking algorithm and continuations. (by marcin-chwedczuk)
regex-engine backtracking-algorithm Continuations
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zorex reng
3 1
65 5
- -
0.0 3.6
over 2 years ago over 2 years ago
Zig Java
GNU General Public License v3.0 or later -
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

zorex

Posts with mentions or reviews of zorex. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2021-11-16.
  • Types of Parser Combinators
    2 projects | news.ycombinator.com | 16 Nov 2021
  • Let's Build a Regex Engine
    9 projects | news.ycombinator.com | 26 May 2021
    It's still really early stages, but I am actively working on a regexp engine[0] in Zig which aims to blur the line between regex engines and advanced parsing algorithms used to parse programming languages.

    I am quite optimistic that due to Zig's portability and cross compilation, it shouldn't be too hard to expose it as a nice C library and use it from other languages soon.

    [0] https://github.com/hexops/zorex

  • Making live repls behave (DRAFT)
    2 projects | /r/Zig | 18 May 2021
    My code is public here, albeit a bit complex: https://github.com/hexops/zorex/blob/main/src/combn/engine/parser.zig#L445-L449

reng

Posts with mentions or reviews of reng. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2021-05-26.
  • Let's Build a Regex Engine
    9 projects | news.ycombinator.com | 26 May 2021
    So it be, I have also build a simplistic regex engine:

    - http://blog.marcinchwedczuk.pl/matching-regexes-using-backtr...

    - https://github.com/marcin-chwedczuk/reng/blob/master/src/pl/...

    I was learning about continuations in LISP and how you can use them to get rid of the call stack and implement pseudo-concurrency. After reading some articles I realised that the same approach can be used to implement a backtracking regex engine in just few lines of code.

    I was reading about LISP, but the code is in Java. Don't judge me.

What are some alternatives?

When comparing zorex and reng you can also consider the following projects:

safe-regex-rs

Wizium - Insanely fast crossword generator

regex - An implementation of regular expressions for Rust. This implementation uses finite automata and guarantees linear time matching on all inputs.

caniuse - Raw browser/feature support data from caniuse.com

packrattle - parser-combinator library (using GLL) for javascript

Scala.js - Scala.js, the Scala to JavaScript compiler

re2 - modern regular expression syntax everywhere with a painless upgrade path [Moved to: https://github.com/SonOfLilit/kleenexp]

zorex vs safe-regex-rs reng vs Wizium zorex vs regex reng vs caniuse zorex vs packrattle reng vs safe-regex-rs zorex vs caniuse reng vs regex reng vs Scala.js reng vs re2