def to_designation(self):
'''Look at current ESC arguments and return their meaning
as a change in mapping in designation to code set
'''
if DEBUG:
print 'ESC ' + str(self)
if len(self._args) < 2:
raise DecodingError()
#strip the last byte of _args to examine, since it varies by final byte
#(i.e. the final byte indicates the code set we'll change to)
final_byte = self._args[-1]
#TODO: check final_byte to make sure it's code_set or throw
designation = self._args[:-1]
if DEBUG:
print 'final byte: {b}'.format(b=final_byte)
print 'designation: {d}'.format(d=str(designation))
code_set = code_set_handler_from_final_byte(final_byte)
d = 0
if designation in ESC.GRAPHIC_SETS_TABLE:
if DEBUG:
print 'designation in table'
#for now i'm assuming i only need the designation g0-g3
#and the final byte (to get the new code set)
d = ESC.find_designation(designation)
else:
if DEBUG:
print 'not in table'
raise DecodingError()
return (d, code_set)
def to_designation(self):
'''Look at current ESC arguments and return their meaning
as a change in mapping in designation to code set
'''
if DEBUG:
print 'ESC ' + str(self)
if len(self._args) < 2:
raise DecodingError()
#strip the last byte of _args to examine, since it varies by final byte
#(i.e. the final byte indicates the code set we'll change to)
final_byte = self._args[-1]
#TODO: check final_byte to make sure it's code_set or throw
designation = self._args[:-1]
if DEBUG:
print 'final byte: {b}'.format(b=final_byte)
print 'designation: {d}'.format(d=str(designation))
code_set = code_set_handler_from_final_byte(final_byte)
d = 0
if designation in ESC.GRAPHIC_SETS_TABLE:
if DEBUG:
print 'designation in table'
#for now i'm assuming i only need the designation g0-g3
#and the final byte (to get the new code set)
d = ESC.find_designation(designation)
else:
if DEBUG:
print 'not in table'
raise DecodingError()
return (d, code_set)
def designate(self, decoder, final_byte): '''cause in Designation change on decoder ''' decoder._G3.set(code_set_handler_from_final_byte(final_byte))
def designate(self, decoder, final_byte):
'''cause in Designation change on decoder
'''
decoder._G3.set(code_set_handler_from_final_byte(final_byte))
