Python regular expression matches hexadecimal data

1. Find any hexadecimal number in a larger body of text

\b[0-9a-fa-f]+\b

2. Check whether a text string holds just a hexadecimal number

\a[0-9a-fa-f]+\z

3. Find a hexadecimal number with a 0x prefix

\b0x[0-9a-fa-f]+\b

4. Find a hexadecimal number with an &h prefix

&h[0-9a-fa-f]+\b

5. Find a hexadecimal number with an H suffix

\b[0-9a-fa-f]+h\b

6. Find a hexadecimal byte value or 8-bit number

\b[0-9a-fa-f]{2}\b

7. Find a hexadecimal word value or 16-bit number

\b[0-9a-fa-f]{4}\b

8. Find a hexadecimal double word value or 32-bit number

\b[0-9a-fa-f]{8}\b

9. Find a hexadecimal quad word value or 64-bit number

\b[0-9a-fa-f]{16}\b

Find A string of hexadecimal bytes (i.e., an even number of hexadecimal digits)

\b (?: [0-9a-fa-f]{2}) +\b

Find any hexadecimal number standalone in a larger body of text

(?:^| (? <=\s)) [0-9a-fa-f]+ (? =$|\s)

[Bibliography]

http://blog.csdn.net/guaguastd/article/details/38920565

Python regular expression matches hexadecimal data