The code search searches through all the open-source projects included in the Debian project. It supports exact searches and regex matches. Results can be filtered by file type, package, or path.

Learn regex playfully by solving crosswords with regex hints.

https://catalog.caida.org/details/paper/2019_learning_regexes_extract_router
https://catalog.caida.org/details/paper/2020_learning_extract_use_asns

These two papers focus on how to extract information from the hostname of routers. These hostnames occur when performing traceroutes. The regexes can be used to extract identifiers and AS numbers. The generated datasets of the papers are openly accessible.

The website provides an automatic generator for regex patterns by learning from sample sentences. The website requires entering as many sample sentences with as many matching positions as possible. These datasets can also be imported and exported, such that they can be refined over time.

This is essentially regexr for Rust. It helps in understanding and writing regular expressions (regex). It takes a regex and explains the different parts of it. Likewise, it also shows how the regex applies to a sample text.

Rust regular expression editor and tester.

grep.app provides a regex search over a large part of public GitHub repositories. It provides exact string search and RE2 regex expressions, both features not supported by GitHub. Results can be filtered by repository, path, or language (file type).

regex101 helps in understanding and writing regular expressions (regex). It takes a regex and explains the different parts of it. It also shows how the regex applies to a sample text.

Additionally, it contains a regex reference as well as a user supplied library of different regexes.

regexr helps in understanding and writing regular expressions (regex). It takes a regex and explains the different parts of it. It also shows how the regex applies to a sample text.

Additionally, it contains a regex reference as well as a user supplied library of different regexes.