Source code for objutils.rca

#!/usr/bin/env python

__version__ = "0.1.0"

__copyright__ = """
    objutils - Object file library for Python.

   (C) 2010-2019 by Christoph Schueler <github.com/Christoph2,
                                        cpu12.gems@googlemail.com>

   All Rights Reserved

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2 of the License, or
  (at your option) any later version.

  This program 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 General Public License for more details.

  You should have received a copy of the GNU General Public License along
  with this program; if not, write to the Free Software Foundation, Inc.,
  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
"""

import re

import objutils.hexfile as hexfile


DATA = 1
EOF = 2

NULLS = re.compile(r"\0*\s*!M\s*(.*)", re.DOTALL | re.M)




[docs]
class Reader(hexfile.Reader):
    # data = re.sub('\0*$', ';\n:0000', NULLS.match(inFile.read()).group(1), 1)  # FIXME!!!
    FORMAT_SPEC = ((DATA, "AAAA DD;"), (EOF, ":0000"))



[docs]
    def check_line(self, line, format_type):
        if format_type == DATA:
            line.length = len(line.chunk)





[docs]
    def is_data_line(self, line, format_type):
        return format_type == DATA








[docs]
class Writer(hexfile.Writer):
    SEPARATOR = "{!s}\x0d\x0a".format("\x00" * 48)
    MAX_ADDRESS_BITS = 16



[docs]
    def compose_row(self, address, length, row):
        return f"{address:04X} {Writer.hex_bytes(row)!s};"





[docs]
    def compose_header(self, meta):
        return f"{Writer.SEPARATOR!s}!M"