Tyler Rinker

Thanks you for submitting this. I'll look into it.

Can you show `sessionInfo()`?

I do not have a mac to test. I'd appreciate a pull request to ensure eveything works on a mac. If that is a tall order you can manually installe...

I'll give this one more day and then close due to inactivity.

This sounds like it would be useful. There's nothing built in. Perhaps you could break the task up into chunks and use R's parallel package? You might run into java...

Does the second instance always contain: `continued till` prior to the desired date and likewise the 3rd contain: `last noted` prior to the desired date?

Ok, if you know that you always want the 2nd or third date I'd still extract everything and then process with an `sapply` with `[` to grab the specific element...

``` #http://www.regexlib.com/UserPatterns.aspx?authorId=dd782f8f-82a2-45e6-8e77-00a9647e1aac #jared cook pat

``` #http://www.regexlib.com/REDetails.aspx?regexp_id=2288 #Art Araya pat

Hi thanks for the report. This is because `is.regex` relies on base R for checking the regex (pretty low level checking): ``` is.regex