django uuid slug regex

django_uuid_slug_regex.py

# match with uuid 
# A UUID is a 16-octet (128-bit) number.
# 
# In its canonical form, a UUID is represented by 32 lowercase hexadecimal digits, displayed in five groups separated by hyphens, in the form 8-4-4-4-12 for a total of 36 characters (32 alphanumeric characters and four hyphens). For example:
# 
# 123e4567-e89b-12d3-a456-426655440000
# The first 3 sequences are interpreted as complete hexadecimal numbers, while the final 2 as a plain sequence of bytes. The byte order is Big Endian (also known as network byte order)"'[1](sec. 4.1.2) (note that GUID's byte order is different). This form is defined in the RFC[1](sec. 3) and simply reflects UUID's division into fields,[1](sec. 4.1.2) which apparently originates from the structure of the initial time and MAC-based version.
# 
# The number of possible UUIDs is 1632, which is 2128 or about 3.4 × 1038.
# https://en.wikipedia.org/wiki/Universally_unique_identifier#Definition
# https://en.wikipedia.org/wiki/Universally_unique_identifier#Version_4_.28random.29

(?P<slug>\b[0-9A-Fa-f]{8}\b(-\b[0-9A-Fa-f]{4}\b){3}-\b[0-9A-Fa-f]{12}\b)