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"""
# TOP2049 Open Source programming suite
#
# Utility functions
#
# Copyright (c) 2009-2010 Michael Buesch <mb@bu3sch.de>
#
# 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 sys
import re
class TOPException(Exception): pass
hexdump_re = re.compile(r"0x[0-9a-fA-F]+:\s+([0-9a-fA-F\s]+)\s*.*")
def parseHexdump(dump):
try:
bin = []
for line in dump.splitlines():
line = line.strip()
if not line:
continue
m = hexdump_re.match(line)
if not m:
raise TOPException("Invalid hexdump format (regex failure)")
bytes = m.group(1).replace(" ", "")
if len(bytes) % 2 != 0:
raise TOPException("Invalid hexdump format (odd bytestring len)")
for i in range(0, len(bytes), 2):
byte = int(bytes[i:i+2], 16)
bin.append(chr(byte))
return "".join(bin)
except (ValueError), e:
raise TOPException("Invalid hexdump format (Integer error)")
def generateHexdump(mem):
def toAscii(char):
if char >= 32 and char <= 126:
return chr(char)
return "."
ret = ""
ascii = ""
for i in range(0, len(mem)):
if i % 16 == 0 and i != 0:
ret += " " + ascii + "\n"
ascii = ""
if i % 16 == 0:
ret += "0x%04X: " % i
c = ord(mem[i])
ret += "%02X" % c
if (i % 2 != 0):
ret += " "
ascii += toAscii(c)
ret += " " + ascii + "\n\n"
return ret
def dumpMem(mem):
sys.stdout.write(generateHexdump(mem))
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