add _control_chars_in function

bottlepy / bottle

bottle.py is a fast and simple micro-framework for python web-applications.

http://bottlepy.org/

MIT License

8.34k stars 1.46k forks source link

add _control_chars_in function #1272

Closed SergBobrovsky closed 3 years ago

defnull commented 3 years ago


python3 -mtimeit -s 'key="Content-Type";import re;_control_chars_in = re.compile("[\n\r\0]+").search' '_control_chars_in(key)'
1000000 loops, best of 5: 253 nsec per loop
python3 -mtimeit -s 'key="Content-Type"' "'\n' in key or '\r' in key or '\0' in key"
5000000 loops, best of 5: 43.1 nsec per loop```

defnull commented 3 years ago

Regular expressions are 5 times slower than three simple in checks and that check is run quire often during a request.