/
^
(?<born> # BORN part start
(?:(?<o>1)|(?<t>2)|(?<h>3)|(?<f>4)|(?<v>5)|(?<s>6)|(?<n>7)|(?<e>8)|(?<i>9)|(?<z>0)) # Thousands
(?:(?<o2>1)|(?<t2>2)|(?<h2>3)|(?<f2>4)|(?<v2>5)|(?<s2>6)|(?<n2>7)|(?<e2>8)|(?<i2>9)|(?<z2>0)) # Centuries
(?:(?<o3>1)|(?<t3>2)|(?<h3>3)|(?<f3>4)|(?<v3>5)|(?<s3>6)|(?<n3>7)|(?<e3>8)|(?<i3>9)|(?<z3>0)) # Decades
(?:(?<o4>1)|(?<t4>2)|(?<h4>3)|(?<f4>4)|(?<v4>5)|(?<s4>6)|(?<n4>7)|(?<e4>8)|(?<i4>9)|(?<z4>0)) # Last digit
)
,
(?!\k<born>) #Fail if years are identical
(?:
#1st digit is lower
(?:(?(o)0|(?(t)[01]|(?(h)[0-2]|(?(f)[0-3]|(?(v)[0-4]|(?(s)[0-5]|(?(n)[0-6]|(?(e)[0-7]|(?(i)[0-8]|-1)))))))))) \d{3} |
#1st digit is lower or identical
(?:(?(o)[01]|(?(t)[0-2]|(?(h)[0-3]|(?(f)[0-4]|(?(v)[0-5]|(?(s)[0-6]|(?(n)[0-7]|(?(e)[0-8]|(?(i)[0-9]|-1))))))))))
#and 2nd is lower
(?:(?(o2)0|(?(t2)[01]|(?(h2)[0-2]|(?(f2)[0-3]|(?(v2)[0-4]|(?(s2)[0-5]|(?(n2)[0-6]|(?(e2)[0-7]|(?(i2)[0-8]|-1)))))))))) \d{2} |
#1st digit is lower or identical
(?:(?(o)[01]|(?(t)[0-2]|(?(h)[0-3]|(?(f)[0-4]|(?(v)[0-5]|(?(s)[0-6]|(?(n)[0-7]|(?(e)[0-8]|(?(i)[0-9]|-1))))))))))
#and 2nd is lower or identical
(?:(?(o2)[01]|(?(t2)[0-2]|(?(h2)[0-3]|(?(f2)[0-4]|(?(v2)[0-5]|(?(s2)[0-6]|(?(n2)[0-7]|(?(e2)[0-8]|(?(i2)[0-9]|-1))))))))))
#and 3rd is lower
(?:(?(o3)0|(?(t3)[01]|(?(h3)[0-2]|(?(f3)[0-3]|(?(v3)[0-4]|(?(s3)[0-5]|(?(n3)[0-6]|(?(e3)[0-7]|(?(i3)[0-8]|-1)))))))))) \d |
#1st digit is lower or identical
(?:(?(o)[01]|(?(t)[0-2]|(?(h)[0-3]|(?(f)[0-4]|(?(v)[0-5]|(?(s)[0-6]|(?(n)[0-7]|(?(e)[0-8]|(?(i)[0-9]|-1))))))))))
#and 2nd is lower or identical
(?:(?(o2)[01]|(?(t2)[0-2]|(?(h2)[0-3]|(?(f2)[0-4]|(?(v2)[0-5]|(?(s2)[0-6]|(?(n2)[0-7]|(?(e2)[0-8]|(?(i2)[0-9]|-1))))))))))
#and 3rd is lower or identical
(?:(?(o3)[01]|(?(t3)[0-2]|(?(h3)[0-3]|(?(f3)[0-4]|(?(v3)[0-5]|(?(s3)[0-6]|(?(n3)[0-7]|(?(e3)[0-8]|(?(i3)[0-9]|-1))))))))))
#and 4th is lower
(?:(?(o4)0|(?(t4)[01]|(?(h4)[0-2]|(?(f4)[0-3]|(?(v4)[0-4]|(?(s4)[0-5]|(?(n4)[0-6]|(?(e4)[0-7]|(?(i4)[0-8]|-1))))))))))
)
$
/
gmx