Content match; matching optional whitespace

Hi,
I love the content match feature in Hazel. One question- in the matches is is possible to match one or zero spaces? A bit like you can do in regexp?
I want to do this because sometimes I get PDFs with OCRed dates showing, e.g. "23July 2013" instead of "23 July 2013"
If I can't do this do I just need to build up two date matches, one with a space and one without and let Hazel fill the date in whichever it matches?
Thanks in advance.
I love the content match feature in Hazel. One question- in the matches is is possible to match one or zero spaces? A bit like you can do in regexp?
I want to do this because sometimes I get PDFs with OCRed dates showing, e.g. "23July 2013" instead of "23 July 2013"
If I can't do this do I just need to build up two date matches, one with a space and one without and let Hazel fill the date in whichever it matches?
Thanks in advance.