Generate FPGA code to implement a character set

fpga-font.py

# Process font file to generate FPGA code

# Font from https://github.com/dhepper/font8x8/blob/master/font8x8_basic.h

import re

chars = []
for line in open('font8x8_basic.h').readlines():
  m = re.search('{([\s0-9A-Fa-fx,]*)}', line)
  if m:
    chars.append([int(x, 16) for x in m.group(1).split(',')])

# The characters to output
cset = "0123456789BFiuz"
for cnum in range(0, len(cset)):
  ch = cset[cnum]
  print
  for row in range(0, 8):
    bits = ('{:08b}'.format(chars[ord(ch)][row]))[::-1]
    case = '{:04b}{:03b}'.format(cnum, row)
    print  '    7\'b%s: pixels = 8\'b%s; // %s' % (case, bits, bits.replace('1', 'X').replace('0', ' '))