I'm looking for an OR capability to match on several strings with regular expressions.

```
# I would like to find either "-hex", "-mos", or "-sig"
# the result would be -hex, -mos, or -sig
# You see I want to get rid of the double quotes around these three strings.
# Other double quoting is OK.
# I'd like something like.
messWithCommandArgs =  ' -o {} "-sig" "-r" "-sip" '
messWithCommandArgs = re.sub(
            r'"(-[hex|mos|sig])"',
            r"\1",
            messWithCommandArgs)

```

This works:

```
messWithCommandArgs = re.sub(
            r'"(-sig)"',
            r"\1",
            messWithCommandArgs)

```