This is a starting point for Python solutions to the "Build Your Own grep" Challenge.
Regular expressions
(Regexes, for short) are patterns used to match character combinations in
strings. grep
is a CLI tool for
searching using Regexes.
In this challenge you'll build your own implementation of grep
. Along the way
we'll learn about Regex syntax, how parsers/lexers work, and how regular
expressions are evaluated.
Note: If you're viewing this repo on GitHub, head over to codecrafters.io to try the challenge.
The entry point for your grep
implementation is in app/main.py
. Study and
uncomment the relevant code, and push your changes to pass the first stage:
git add .
git commit -m "pass 1st stage" # any msg
git push origin master
Time to move on to the next stage!
Note: This section is for stages 2 and beyond.
- Ensure you have
python (3.10)
installed locally - Run
./your_grep.sh
to run your program, which is implemented inapp/main.py
. - Commit your changes and run
git push origin master
to submit your solution to CodeCrafters. Test output will be streamed to your terminal.