God, I really hope they grasp the stupidity of using regular expressions to parse an irregular language. Implementing a very simple HTML parser takes at least a half-dozen man hours; seeing that question honestly makes Asana seem like amateur hour, and I've had to do some pretty stupid shit in my time. Snapchat, for example, had me solve Sudoku (???).
for the HTML parsing - I was able to pass all the test cases using a stack (push the tags when they open and pop them as they close). I was doing zero validation as the challenge was to take valid html. (I didn't verify that the proper tag was being closed, I knew I'd get out of bound errors due to this, but it should work for valid html)
I was using a string builder to eat the input as I had parsed it... but I got an error on submitting my result - it gave "unexpected termination" even when I had replicated the "unexpected termination" error with a custom test case and caught the error - I still got an unexpected termination error when submitting - sigh - maybe it's related to using C# for the challenge... overall not so hard though...
