Using the vectored mode example from the Quickstart guide:
from typing import Any, Optional
import hyperscan
def on_match(id: int, from_: int,
to: int,
flags: int,
context: Optional[Any] = None
) -> Optional[bool]:
print(f"id={id}, from={from_} - to={to}")
db = hyperscan.Database(mode=hyperscan.HS_MODE_VECTORED)
patterns = (
# expression, id, flags
(br'fo+', 0, 0),
(br'^foobar$', 1, hyperscan.HS_FLAG_CASELESS),
(br'BAR', 2, hyperscan.HS_FLAG_CASELESS
| hyperscan.HS_FLAG_SOM_LEFTMOST),
)
expressions, ids, flags = zip(*patterns)
db.compile(
expressions=expressions, ids=ids, elements=len(patterns), flags=flags
)
print(db.info().decode())
buffers = [
bytearray(b'xxxfooxxx'),
bytearray(b'xxfoxbarx'),
bytearray(b'barxxxxxx'),
]
db.scan(buffers, match_event_handler=on_match)Output:
Version: 5.4.11 Features: Mode: VECTORED
id=0, from=0 - to=5
id=0, from=0 - to=6
id=2, from=9 - to=12
Unless I'm not understanding how vectored mode works. I would have expected expression id=2 to have matched twice once on bytearray(b'xxfoxbarx') and on bytearray(b'barxxxxxx'). In addition to this the range of 9:12 doesn't appear to match either occurrence of bar.
Using the vectored mode example from the Quickstart guide:
Output:
Unless I'm not understanding how vectored mode works. I would have expected expression id=2 to have matched twice once on
bytearray(b'xxfoxbarx')and onbytearray(b'barxxxxxx'). In addition to this the range of 9:12 doesn't appear to match either occurrence ofbar.