Pattern Matching For Date and Long/Lati

Need help...
in pattern matching for Date(mm/dd/yy , dd/mm/yy)and latitude/longitude
I have tried as bellow but date will be matched as lat/lng because of delimiter "/"
Date should have delimiter as [/ - ] and lat/long should have [ , : ; /]
dbarray=( 8/Dec/2010@@@456/1145@@@-@@@- )
for i in ${dbarray[@]}; do
if [[ $i =~ ^({(0[1-9]|1[012]|\D)\.(0[1-9]|[12][0-9]|3[01])\.(19/20)[0-9]+$})|^({(0[1-9]|[12][0-9]|3[01])\.(0[1-9]|1[012]|\D)\.(19|20)[0-9]+$}) ]]; then
Installer=$i
elif [[ $i =~ (^[0-9]+).+([0-9]+)$ ]]; then
lat_lng=$i
fi
done
Can anybody help me out from this... to test Date and long/latitude correctly !
Thanks,

Your requirement is ... well, horrible! Matching dates is bad enough without rolling in the fact that you'll accept dd/mm as well as mm/dd, with the month component also being an alpha abbreviation and the day having, or not, a leading zero.
I made a start, but gave up when my eyes started bleeding from trying to match up all the brackets as I started to build up the needed regex: and that was until (but not including the first year field!).
Don't try and be clever is my suggestion - go for basic checks and assume that the data is good, so look for 1 or 2 numerics, followed by a / or -, then one or two numerics (or 3 alpha) followed by a / or -, then 2 or 4 numerics and assume if that pattern matches it's a date, and so on.