Refactored and fixed the add_slashes function

[mekhami]

Two things I found wrong with this function. One, there's no reason to define it within the top level function. Something like this is both reusable, doesn't play with weird namespaces, so it should be made available at the top level.

Second, it didn't actually do anything. Period. Strings are immutable, so it does all the replaces you want but doesn't actually "save" the results.

[ghost]

In general it's probably just pointless to even have the add_slashes function when you could just use re.escape. But that's not something I'm gonna decide for you :)

[kaedroho]

Thanks!

Yep, add_slashes was added just reduce duplication. It looks like that could be replaced with re.escape though!