StringCases["700x35",
RegularExpression["(\\d+(?:\\.\\d*)?)(/|x|X)(\\d{1,3}(?:\\.\\d*)?)(\\s*([a-zA-Z])?(R|D|B|r|d|b)?)[\\s*-]?(\\d+(?:\\.\\d*)?)"] :>
{"$1", "$2", "$3", "$4","$5", "$6", "$7"}]
Out[1]= {{"700", "x", "3", "", "", "", "5"}}
I expected position "$3" to be 35. Instead, the 3 and 5 get split apart drastically. Any ideas how to tweak the above to keep 35 together?
I assumed that (\\d{1,3}(?:\\.\\d*)?) would take 1 to 3 digits followed by an optional decimal point and more digits, but this doesn't seem to be doing that in this case.
Thanks,
-Jeff
