Replace escape sequences to characters or vice versa

s.escape([flags])

s - str variable.

flags - one of values below. Default: 0.

0	replace escape sequences ( '', [], [digits]) to characters (", new line, character).
1	replace unsafe characters (", new line, [ , '') to escape sequences.
8	urldecode.
9	urlencode. That is, replace all characters except 0-9, A-Z, a-z, _, - and . to escape sequences in form %xx, where xx is character code in hexadecimal format.
10	same as 8, but decode + to space.
11	same as 9, but encode space to +.

Replaces escape sequences to characters, or vice versa.

QM 2.3.0. Removed flag 2 (don't escape characters above 127). Now does not escape these characters. It is because of possible problems with UTF-8.