mm-uu-beginning-regexp

mm-uu-beginning-regexp is a variable defined in `mm-uu.el'.
Its value is

"^%!PS-\\|^begin[ 	]+0?[0-7][0-7][0-7][ 	]+\\|^:.\\{63,63\\}$\\|^=ybegin.*size=[0-9]+.*name=.*$\\|^-+ \\(Start of \\)?Forwarded message\\|^----gnatsweb-attachment----\\|^-----BEGIN PGP SIGNED MESSAGE-----\\|^-----BEGIN PGP MESSAGE-----\\|^-----BEGIN PGP PUBLIC KEY BLOCK-----\\|^;;;?[ 	]*[^ 	]+\\.el[ 	]*--\\|^Index: \\|^=== modified file \\|^diff --git \\|^-+[8<>]*-\\{9,\\}[a-z ]+-\\{9,\\}[a-z ]+-\\{9,\\}[8<>]*-+$\\|^ *\\(-\\|_\\)\\{30,\\}.*[a-z8<].*\\(-\\|_\\)\\{30,\\} *$\\|^#v\\+\\|^\\([\\\\%][^\n]+\n\\)*\\\\documentclass.*[[{%]\\|^[ 	]*#\\+begin_\\|^[ 	]*#\\+[[:alpha:]]+: "

Documentation:
Not documented as a variable.