Find string between two characters -- regex?

So this seems like a regex type thing, but I'm still incredibly regex illeterate. If I have an offset in a string, I want to find all words separated by the space before and the space following that location.
For Example:
"This is a string of multiple characters"
If my cursor was between the o and the f in "of" i would want to return "string of multiple". I can then split this into an array of words using "\s" as a delimeter. I just need to get the substring shown.
CLA, LabVIEW Versions 2010-2013

Yamaeda wrote:
Or you split the string at the Offset, reverse the first half, look for the 2nd space in each (which can be a regex, similar to [^\s]*[^\s]*) then revese back and recombine.
/Y
Droppin' knowledge.
CLA, LabVIEW Versions 2010-2013

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