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import sys
from pyasn1.compat.octets import octs2ints
from pyasn1 import error
from pyasn1 import __version__
flagNone = 0x0000
flagEncoder = 0x0001
flagDecoder = 0x0002
flagAll = 0xffff
flagMap = {
'encoder': flagEncoder,
'decoder': flagDecoder,
'all': flagAll
}
class Debug:
defaultPrinter = sys.stderr and sys.stderr.write or None
def __init__(self, *flags):
self._flags = flagNone
if not self.defaultPrinter:
raise error.PyAsn1Error('Null debug writer specified')
self._printer = self.defaultPrinter
self('running pyasn1 version %s' % __version__)
for f in flags:
if f not in flagMap:
raise error.PyAsn1Error('bad debug flag %s' % (f,))
self._flags = self._flags | flagMap[f]
self('debug category \'%s\' enabled' % f)
def __str__(self):
return 'logger %s, flags %x' % (self._printer, self._flags)
def __call__(self, msg):
self._printer('DBG: %s\n' % msg)
def __and__(self, flag):
return self._flags & flag
def __rand__(self, flag):
return flag & self._flags
logger = 0
def setLogger(l):
global logger
logger = l
def hexdump(octets):
return ' '.join(
[ '%s%.2X' % (n%16 == 0 and ('\n%.5d: ' % n) or '', x)
for n,x in zip(range(len(octets)), octs2ints(octets)) ]
)
class Scope:
def __init__(self):
self._list = []
def __str__(self): return '.'.join(self._list)
def push(self, token):
self._list.append(token)
def pop(self):
return self._list.pop()
scope = Scope()
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