[fishywang]

My own Xcode horror story:

It was the end of 2009. I was working for a small startup doing some Twitter clone. We decided that we want to provide an iPhone app, and since we already provided Twitter like API, the easiest way is to just fork an open source iOS Twitter app to replace all the API endpoints to ours.

I was doing that, using Xcode. One day the compiler complained something like "unexpected `\`". Looking at the code in Xcode, I don't see any \ around the position compiler pointing to.

After stared at the code for an hour, I finally decided to open that file in vim, and sure there's an \ added before a double quotation mark I believe, while in that context an escape is not needed (and doing that is wrong, thus the complaint from the compiler).

So Xcode's editor, trying to be smart, auto escaped a double quotation mark at the wrong place, and don't show it in the editor at all. Their compiler caught the error.