> I have a very long regular expression (email validation of course) that doesn't fit on one line but no solutions I have found properly break the lines on page overflow.
Have you considered manually splitting the regular expression into multiple lines in the source document, using something like the `VERBOSE` mode from Python re module [1]?
Have you considered manually splitting the regular expression into multiple lines in the source document, using something like the `VERBOSE` mode from Python re module [1]?
[1]: https://docs.python.org/3/howto/regex.html#using-re-verbose