def Literal(C, is_unicode=False, needs_header=False, explicit_length=None, **kw):
'''Read a string literal (ASCII/Unicode, with/without header).'''
from bytecleaver import array_t, array_f, WORD, BYTE
# Figure out our element type/size and length (if any)
length = explicit_length
if needs_header:
C.skip(-4)
data_type, byte_length = parse_data_header(C)
is_unicode = (sizeof_data_type(data_type) == 2)
length = byte_length / sizeof_data_type(data_type)
# Read the raw data accordingly
element = WORD if is_unicode else BYTE
data = array_f(element, length)(C, **kw) if (length is not None) else array_t(element, 0)(C, **kw)
# Convert to a string
return (u''.join(map(unichr, data))) if is_unicode else (''.join(map(chr, data)))
def Identifier(C, **kw):
'''Get a packed, NUL-terminated Identifier string.'''
from bytecleaver import array_t, BYTE
return decode_identifier(array_t(BYTE, 0)(C, **kw))
