safariXPathGoogleResultLinks.applescript

set strJS to "
var xpathResults = document.evaluate('//*[@class=\\'r\\']/a', document, null, 0, null),
	lst = [],
	oNode;

while (oNode = xpathResults.iterateNext()) {
	lst.push([
		'[',
		oNode.text,
		'](',
		oNode.href,
		')'
	].join(''));		
}
lst
"
tell application "Safari"
	tell front document
		if name contains "Google Search" then
			set {dlm, my text item delimiters} to {my text item delimiters, linefeed}
			set strMD to (do JavaScript strJS in it) as string
			set my text item delimiters to dlm
			set the clipboard to strMD
			return strMD
		else
			return ("Not a Google Search page: " & linefeed & tab & URL)
		end if
	end tell
end tell

Compare with JXA (Yosemite Javascript for Applications) version:
https://gist.github.com/RobTrew/416ae1a896e06234c92c