Messing around with Yahoo! Pipes

Playing around with the Yahoo! Pipes and spent an hour working on the Regex module until I found that the source of the problem was a bug with their S flag. It’s documented at the forum. Basically, assume that the “s” checkbox doesn’t work. Always use the (?s) flag explicitly in the regex pattern to prevent any problems.

While debugging, I found quite a few useful resources. There’s regexpal which I might work on in the holidays and RegExr. RegExr is more useful at the moment because it has the Replace functionality. I’ll put it on the list of TODO / opensource stuff (along with Spritely) that I’ll look into.

As a sidenote, RegexInfo is indispensible as usual.