/.*                      # Stuff
 (                        # START capturing to $1 
    \                     # exactly 1 space
  |                       # OR
    \[?                   # 0 or 1 [
    \w*                   # 0 or more word characters
    \@?                   # 0 or 1 @
    [-\w.]*               # 0 or more word chars, dots and hyphens eg w-w.w-.w
    [$\#\%>~]             # exactly 1 of $, #, %, > or ~
    \]?                   # 0 or 1 ]
  |                       # OR 
    \\\[\\e\[0m\\\]\ \[0m # the sequence: \[\e[0m\\] [0m
 )                        # END of $1
\s?                      # 0 or 1 spaces
/x