예제 #1
0
c3 = StreamBackedCorpusView(f3, read_whitespace_block)
iterators = [c3.iterate_from(n) for n in [0, 15, 30, 45]]
for i in range(15):
    for iterator in iterators:
        print('%-15s' % next(iterator))
    print()
# SeekableUnicodeStreamReader
stream = BytesIO(b"""
This is a test file.
It is encoded in ascii.
""".decode('ascii').encode('ascii'))
reader = SeekableUnicodeStreamReader(stream, 'ascii')
print(reader.read())  # read the entire file.
print(reader.seek(0))  # rewind to the start.
print(reader.read(5))  # read at most 5 bytes.
print(reader.readline())  # read to the end of the line.
print(reader.seek(0))  # rewind to the start.
for line in reader:
    print(repr(line))  # iterate over lines
print(reader.seek(0))  # rewind to the start.
print(reader.readlines())  # read a list of line strings
print(reader.close())
# size argument to read()
stream = BytesIO(b"""
This is a test file.
It is encoded in utf-16.
""".decode('ascii').encode('utf-16'))
reader = SeekableUnicodeStreamReader(stream, 'utf-16')
print(reader.read(10))
print(reader.seek(0))  # rewind to the start.
print(reader.read(1))  # we actually need to read 4 bytes