I prefer not having to maintain code that is overly flexible with its input. Last time I ran into half a page of workarounds for bad input I spend a day trackin

I prefer not having to maintain code that is overly flexible with its input. Last time I ran into half a page of workarounds for bad input I spend a day tracking down all affected files and making sure I could either ignore or fix them. The result was a neat little string comparison that didn't have half a dozen unpredictable edge cases.