# -*- Mode: python; coding: utf-8; indent-tabs-mode: nil -*- */ # # This file is part of systemd. # # Copyright 2013-2014 David Herrmann <dh.herrmann@gmail.com> # # systemd is free software; you can redistribute it and/or modify it # under the terms of the GNU Lesser General Public License as published by # the Free Software Foundation; either version 2.1 of the License, or # (at your option) any later version. # # systemd is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public License # along with systemd; If not, see <http://www.gnu.org/licenses/>. # # Parse a unifont.hex file and produce a compressed binary-format. # from __future__ import print_function import re import sys import fileinput import struct # # Write "bits" array as binary output. # write = getattr(sys.stdout, 'buffer', sys.stdout).write def write_bin_entry(entry): l = len(entry) if l != 32 and l != 64: entry = "0" * 64 l = 0 elif l < 64: entry += "0" * (64 - l) write(struct.pack('B', int(l / 32))) # width write(struct.pack('B', 0)) # padding write(struct.pack('H', 0)) # padding write(struct.pack('I', 0)) # padding i = 0 for j in range(0, 16): for k in range(0, 2): if l <= k * 16 * 2: c = 0 else: c = int(entry[i:i+2], 16) i += 2 write(struct.pack('B', c)) def write_bin(bits): write(struct.pack('B', 0x44)) # ASCII: 'D' write(struct.pack('B', 0x56)) # ASCII: 'V' write(struct.pack('B', 0x44)) # ASCII: 'D' write(struct.pack('B', 0x48)) # ASCII: 'H' write(struct.pack('B', 0x52)) # ASCII: 'R' write(struct.pack('B', 0x4d)) # ASCII: 'M' write(struct.pack('B', 0x55)) # ASCII: 'U' write(struct.pack('B', 0x46)) # ASCII: 'F' write(struct.pack('<I', 0)) # compatible-flags write(struct.pack('<I', 0)) # incompatible-flags write(struct.pack('<I', 32)) # header-size write(struct.pack('<H', 8)) # glyph-header-size write(struct.pack('<H', 2)) # glyph-stride write(struct.pack('<Q', 32)) # glyph-body-size # write glyphs for idx in range(len(bits)): write_bin_entry(bits[idx]) # # Parse hex file into "bits" array # def parse_hex_line(bits, line): m = re.match(r"^([0-9A-Fa-f]+):([0-9A-Fa-f]+)$", line) if m == None: return idx = int(m.group(1), 16) val = m.group(2) # insert skipped lines for i in range(len(bits), idx): bits.append("") bits.insert(idx, val) def parse_hex(): bits = [] for line in sys.stdin: if not line: continue if line.startswith("#"): continue parse_hex_line(bits, line) return bits # # In normal mode we simply read line by line from standard-input and write the # binary-file to standard-output. # if __name__ == "__main__": bits = parse_hex() write_bin(bits)