I simplified the quote code to use a regex instead of a loop+test when I
moved pipes.quote to shlex in 5966eeb0457d; Ezio Melotti pointed out
that my regex contained redundant parts (now removed) and allowed
non-ASCII characters (now disallowed).
I think common UNIX shells don’t quote non-ASCII characters, but there’s
no harm in doing so. We’ll see if users request a change.
This function used to live as pipes.quote, where it was undocumented but
used anyway. (An alias still exists for backward compatibility.) The
tests have been moved as is, but the code of the function was changed to
use a regex instead of a loop with string comparisons (at Ian Bicking’s
suggestion). I’m terrible at regexes, so any feedback is welcome.
Éric Araujo
Antoine Pitrou
Benjamin Peterson
Walter Dörwald
Tim Peters
Gustavo Niemeyer
Neal Norwitz