sfaleron

_fmtinner = ('',' ') * 3 + ('','-') + ('',' ') * 3 + ('','')
_fmtouter = ('  ', '  |', '|')

def _mkhex(d, i):
   try:
      return '%02x' % (ord(d[i]),)
   except IndexError:
      return '  '

def _mkchar(d, i):

sfaleron

from math import ceil

# for example, inc=4 gives ln16, or the number of hexadecimal digits
# required to represent n.
def ln2(n, inc=1):
   if n<0:
      raise ValueError('math domain error')

   i = 0
   n = int(ceil(n))