mirror of
https://github.com/explosion/spaCy.git
synced 2025-08-22 21:14:58 +03:00
Intermediate state
This commit is contained in:
richardpaulhudson
parent
356a341096
commit
2707d30ce0
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@ -1,4 +1,5 @@
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from typing import List, Optional, Callable, Tuple
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from ..util import get_byte_arrays_for_search_chars
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from thinc.types import Ints2d
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from thinc.api import Model, registry
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@ -16,22 +17,30 @@ def RichFeatureExtractor(
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suff_search_chars: Optional[str] = None,
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suff_search_lengths: Optional[List[int]] = None,
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) -> Model[List[Doc], List[Ints2d]]:
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if pref_search_chars is not None:
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pref_search, pref_ref = get_byte_arrays_for_search_chars(pref_search_chars, case_sensitive)
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else:
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pref_search, pref_ref = bytes(), bytes()
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if suff_search_chars is not None:
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suff_search, suff_ref = get_byte_arrays_for_search_chars(suff_search_chars, case_sensitive)
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else:
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suff_search, suff_ref = bytes(), bytes()
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return Model(
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"extract_character_combination_hashes",
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forward,
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attrs={
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"case_sensitive": case_sensitive,
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"pref_lengths": pref_lengths if pref_lengths is not None else [],
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"pref_search_chars": pref_search_chars
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if pref_search_chars is not None
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else "",
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"suff_lengths": suff_lengths if suff_lengths is not None else [],
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"pref_search": pref_search,
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"pref_ref": pref_ref,
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"pref_s_char_l": len(pref_search) / 4 if pref_search_chars is not None else 0,
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"pref_search_lengths": pref_search_lengths
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if pref_search_lengths is not None
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else [],
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"suff_lengths": suff_lengths if suff_lengths is not None else [],
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"suff_search_chars": suff_search_chars
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if suff_search_chars is not None
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else "",
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"suff_search": suff_search,
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"suff_ref": suff_ref,
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"suff_s_char_l": len(suff_search) / 4 if suff_search_chars is not None else 0,
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"suff_search_lengths": suff_search_lengths
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if suff_search_lengths is not None
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else [],
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@ -45,10 +54,14 @@ def forward(
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ops = model.ops
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case_sensitive: bool = model.attrs["case_sensitive"]
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pref_lengths: List[int] = model.attrs["pref_lengths"]
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pref_search_chars: str = model.attrs["pref_search_chars"]
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pref_search_lengths: List[int] = model.attrs["pref_search_lengths"]
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suff_lengths: List[int] = model.attrs["suff_lengths"]
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suff_search_chars: str = model.attrs["suff_search_chars"]
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pref_search: bytes = model.attrs["pref_search"]
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pref_ref: bytes = model.attrs["pref_ref"]
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pref_s_char_l: int = model.attr["pref_s_char_l"]
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pref_search_lengths: List[int] = model.attrs["pref_search_lengths"]
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suff_search: bytes = model.attrs["suff_search"]
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suff_ref: bytes = model.attrs["suff_ref"]
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suff_s_char_l: int = model.attr["suff_s_char_l"]
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suff_search_lengths: List[int] = model.attrs["suff_search_lengths"]
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features: List[Ints2d] = []
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for doc in docs:
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@ -56,9 +69,13 @@ def forward(
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case_sensitive=case_sensitive,
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pref_lengths=pref_lengths,
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suff_lengths=suff_lengths,
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pref_search_chars=pref_search_chars,
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pref_search=pref_search,
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pref_ref=pref_ref,
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pref_s_char_l=pref_s_char_l,
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pref_search_lengths=pref_search_lengths,
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suff_search_chars=suff_search_chars,
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suff_search=suff_search,
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suff_ref=suff_ref,
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suff_s_char_l=suff_s_char_l,
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suff_search_lengths=suff_search_lengths,
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)
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features.append(ops.asarray2i(hashes))
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@ -14,6 +14,7 @@ from spacy.lang.xx import MultiLanguage
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from spacy.language import Language
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from spacy.lexeme import Lexeme
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from spacy.tokens import Doc, Span, SpanGroup, Token
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from spacy.util import get_byte_arrays_for_search_chars
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from spacy.vocab import Vocab
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from .test_underscore import clean_underscore # noqa: F401
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@ -994,7 +995,8 @@ def test_doc_spans_setdefault(en_tokenizer):
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def _get_unsigned_32_bit_hash(input: str) -> int:
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working_hash = hash(input.encode("UTF-16")[2:])
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input = input.replace(" ", "\x00")
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working_hash = hash(input.encode("UTF-32LE"))
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if working_hash < 0:
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working_hash = working_hash + (2 << 31)
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return working_hash
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@ -1004,15 +1006,21 @@ def _get_unsigned_32_bit_hash(input: str) -> int:
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def test_get_character_combination_hashes_good_case(en_tokenizer, case_sensitive):
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doc = en_tokenizer("spaCy✨ and Prodigy")
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suff_search, suff_ref = get_byte_arrays_for_search_chars("xx✨rp", case_sensitive)
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hashes = doc.get_character_combination_hashes(
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case_sensitive=case_sensitive,
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cs=case_sensitive,
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pref_lengths=[1, 4, 3],
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suff_lengths=[2, 3, 4, 5],
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pref_search_chars="",
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pref_search=bytes(),
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pref_ref=bytes(),
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pref_s_char_l = 0,
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pref_search_lengths=[2],
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suff_search_chars="xx✨rp",
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suff_search_lengths=[2, 1],
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suff_search=suff_search,
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suff_ref=suff_ref,
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suff_s_char_l=5 if case_sensitive else 9,
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suff_search_lengths=[2,1],
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)
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assert hashes[0][0] == _get_unsigned_32_bit_hash("s")
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assert hashes[0][1] == _get_unsigned_32_bit_hash(
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"spaC" if case_sensitive else "spac"
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@ -1031,22 +1039,22 @@ def test_get_character_combination_hashes_good_case(en_tokenizer, case_sensitive
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assert hashes[0][8] == _get_unsigned_32_bit_hash("p ")
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assert hashes[0][9] == _get_unsigned_32_bit_hash("p")
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assert hashes[1][0] == _get_unsigned_32_bit_hash("✨")
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assert hashes[1][1] == _get_unsigned_32_bit_hash("✨")
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assert hashes[1][2] == _get_unsigned_32_bit_hash("✨")
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assert hashes[1][3] == _get_unsigned_32_bit_hash("✨")
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assert hashes[1][4] == _get_unsigned_32_bit_hash("✨")
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assert hashes[1][5] == _get_unsigned_32_bit_hash("✨")
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assert hashes[1][6] == _get_unsigned_32_bit_hash("✨")
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assert hashes[1][1] == _get_unsigned_32_bit_hash("✨ ")
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assert hashes[1][2] == _get_unsigned_32_bit_hash("✨ ")
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assert hashes[1][3] == _get_unsigned_32_bit_hash(" ✨")
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assert hashes[1][4] == _get_unsigned_32_bit_hash(" ✨")
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assert hashes[1][5] == _get_unsigned_32_bit_hash(" ✨")
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assert hashes[1][6] == _get_unsigned_32_bit_hash(" ✨")
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assert hashes[1][7] == _get_unsigned_32_bit_hash(" ")
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assert hashes[1][8] == _get_unsigned_32_bit_hash("✨ ")
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assert hashes[1][9] == _get_unsigned_32_bit_hash("✨")
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assert hashes[2][0] == _get_unsigned_32_bit_hash("a")
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assert hashes[2][1] == _get_unsigned_32_bit_hash("and")
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assert hashes[2][1] == _get_unsigned_32_bit_hash("and ")
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assert hashes[2][2] == _get_unsigned_32_bit_hash("and")
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assert hashes[2][3] == _get_unsigned_32_bit_hash("nd")
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assert hashes[2][4] == _get_unsigned_32_bit_hash("and")
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assert hashes[2][5] == _get_unsigned_32_bit_hash("and")
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assert hashes[2][6] == _get_unsigned_32_bit_hash("and")
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assert hashes[2][5] == _get_unsigned_32_bit_hash(" and")
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assert hashes[2][6] == _get_unsigned_32_bit_hash(" and")
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assert hashes[2][7] == _get_unsigned_32_bit_hash(" ")
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assert hashes[2][8] == _get_unsigned_32_bit_hash(" ")
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assert hashes[2][9] == _get_unsigned_32_bit_hash(" ")
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@ -1076,17 +1084,23 @@ def test_get_character_combination_hashes_good_case(en_tokenizer, case_sensitive
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def test_get_character_combination_hashes_4_byte_char_at_end(en_tokenizer):
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doc = en_tokenizer("and𐌞")
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suff_search, suff_ref = get_byte_arrays_for_search_chars("a", True)
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hashes = doc.get_character_combination_hashes(
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case_sensitive=True,
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cs=True,
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pref_lengths=[],
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suff_lengths=[1, 2, 3],
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pref_search_chars="",
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pref_search=bytes(),
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pref_ref=bytes(),
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pref_s_char_l = 0,
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pref_search_lengths=[],
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suff_search_chars="a",
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suff_search=suff_search,
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suff_ref=suff_ref,
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suff_s_char_l=1,
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suff_search_lengths=[1],
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)
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assert hashes[0][1] == _get_unsigned_32_bit_hash("𐌞")
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assert hashes[0][2] == _get_unsigned_32_bit_hash("d𐌞")
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assert hashes[0][0] == _get_unsigned_32_bit_hash("𐌞")
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assert hashes[0][1] == _get_unsigned_32_bit_hash("d𐌞")
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assert hashes[0][2] == _get_unsigned_32_bit_hash("nd𐌞")
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assert hashes[0][3] == _get_unsigned_32_bit_hash("a")
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@ -1,138 +1,55 @@
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import sys
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import spacy
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def test_get_byte_arrays_for_search_chars_width_1_not_case_sensitive():
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(
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w1_search,
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w1_finding,
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w2_search,
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w2_finding,
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w4_search,
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w4_finding,
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) = spacy.util.get_byte_arrays_for_search_chars("bfEWfwe", False)
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assert w1_search == b"BEFWbefw"
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assert w2_search == b"B\x00E\x00F\x00W\x00b\x00e\x00f\x00w\x00"
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assert (
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w4_search
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== b"B\x00\x00\x00E\x00\x00\x00F\x00\x00\x00W\x00\x00\x00b\x00\x00\x00e\x00\x00\x00f\x00\x00\x00w\x00\x00\x00"
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)
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assert w1_finding == w2_finding == w4_finding == w4_search.lower()
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def test_get_byte_arrays_for_search_chars_width_1_case_sensitive():
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(
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w1_search,
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w1_finding,
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w2_search,
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w2_finding,
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w4_search,
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w4_finding,
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) = spacy.util.get_byte_arrays_for_search_chars("bfewT", True)
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assert w1_search == b"Tbefw"
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assert w2_search == b"T\x00b\x00e\x00f\x00w\00"
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assert w4_search == b"T\x00\00\00b\x00\00\00e\x00\00\00f\x00\00\00w\00\00\00"
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assert w1_finding == w2_finding == w4_finding == w4_search
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def test_get_byte_arrays_for_search_chars_width_2_not_case_sensitive():
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(
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w1_search,
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w1_finding,
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w2_search,
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w2_finding,
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w4_search,
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w4_finding,
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search,
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ref,
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) = spacy.util.get_byte_arrays_for_search_chars("bféwfw", False)
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assert w1_search == b"BFWbfw"
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assert (
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w1_finding
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== b"b\x00\x00\x00f\x00\x00\x00w\x00\x00\x00b\x00\x00\x00f\x00\x00\x00w\x00\x00\x00"
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)
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assert w2_search == b"B\x00F\x00W\x00b\x00f\x00w\x00\xc9\x00\xe9\x00"
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assert (
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w2_finding
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== w4_finding
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ref
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== b"b\x00\x00\x00f\x00\x00\x00w\x00\x00\x00b\x00\x00\x00f\x00\x00\x00w\x00\x00\x00\xe9\x00\x00\x00\xe9\x00\x00\x00"
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)
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assert (
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w4_search
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search
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== b"B\x00\x00\x00F\x00\x00\x00W\x00\x00\x00b\x00\x00\x00f\x00\x00\x00w\x00\x00\x00\xc9\x00\x00\x00\xe9\x00\x00\x00"
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)
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def test_get_byte_arrays_for_search_chars_width_2_case_sensitive():
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(
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w1_search,
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w1_finding,
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w2_search,
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w2_finding,
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w4_search,
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w4_finding,
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search,
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ref,
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) = spacy.util.get_byte_arrays_for_search_chars("bféwfw", True)
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assert w1_search == b"bfw"
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assert w1_finding == b"b\x00\x00\x00f\x00\x00\x00w\x00\x00\x00"
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assert w2_search == b"b\x00f\x00w\x00\xe9\x00"
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assert (
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w2_finding
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== w4_finding
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== w4_search
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== b"b\x00\x00\x00f\x00\x00\x00w\x00\x00\x00\xe9\x00\x00\x00"
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ref == search == b"b\x00\x00\x00f\x00\x00\x00w\x00\x00\x00\xe9\x00\x00\x00"
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)
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def test_get_byte_arrays_for_search_chars_width_4_not_case_sensitive():
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(
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w1_search,
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w1_finding,
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w2_search,
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w2_finding,
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w4_search,
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w4_finding,
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search,
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ref,
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) = spacy.util.get_byte_arrays_for_search_chars("bfé𐌞wf𐌞wÉ", False)
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assert w1_search == b"BFWbfw"
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assert (
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w1_finding
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== b"b\x00\x00\x00f\x00\x00\x00w\x00\x00\x00b\x00\x00\x00f\x00\x00\x00w\x00\x00\x00"
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)
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assert w2_search == b"B\x00F\x00W\x00b\x00f\x00w\x00\xc9\x00\xe9\x00"
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assert (
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w2_finding
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== b"b\x00\x00\x00f\x00\x00\x00w\x00\x00\x00b\x00\x00\x00f\x00\x00\x00w\x00\x00\x00\xe9\x00\x00\x00\xe9\x00\x00\x00"
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)
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assert (
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w4_search
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search
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== b"\x1e\x03\x01\x00B\x00\x00\x00F\x00\x00\x00W\x00\x00\x00b\x00\x00\x00f\x00\x00\x00w\x00\x00\x00\xc9\x00\x00\x00\xe9\x00\x00\x00"
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)
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assert (
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w4_finding
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ref
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== b"\x1e\x03\x01\x00b\x00\x00\x00f\x00\x00\x00w\x00\x00\x00b\x00\x00\x00f\x00\x00\x00w\x00\x00\x00\xe9\x00\x00\x00\xe9\x00\x00\x00"
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)
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def test_get_byte_arrays_for_search_chars_width_4_case_sensitive():
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(
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w1_search,
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w1_finding,
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w2_search,
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w2_finding,
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w4_search,
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w4_finding,
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search,
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ref,
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) = spacy.util.get_byte_arrays_for_search_chars("bfé𐌞wf𐌞wÉ", True)
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assert w1_search == b"bfw"
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assert w1_finding == b"b\x00\x00\x00f\x00\x00\x00w\x00\x00\x00"
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assert w2_search == b"b\x00f\x00w\x00\xc9\x00\xe9\x00"
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assert search == ref
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assert (
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w2_finding
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== b"b\x00\x00\x00f\x00\x00\x00w\x00\x00\x00\xc9\x00\x00\x00\xe9\x00\x00\x00"
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)
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assert w4_search == w4_finding
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assert (
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w4_finding
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ref
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== b"\x1e\x03\x01\x00b\x00\x00\x00f\x00\x00\x00w\x00\x00\x00\xc9\x00\x00\x00\xe9\x00\x00\x00"
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)
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|
|
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|
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@ -33,35 +33,26 @@ cdef int token_by_end(const TokenC* tokens, int length, int end_char) except -2
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cdef int [:,:] _get_lca_matrix(Doc, int start, int end)
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|
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|
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cdef void _populate_affix_buf(
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const void* str_data_ptr,
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const unsigned int unicode_byte_width,
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const int word_idx,
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const int word_len,
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Py_UCS4* affix_buf,
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cdef void _populate_aff_buf(
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const Py_UCS4* text_buf,
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const int tok_idx,
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const int tok_len,
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Py_UCS4* aff_buf,
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const int pref_length,
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const int suff_length,
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||||
const bint to_lower
|
||||
)
|
||||
|
||||
cdef const unsigned char[:] _get_utf16_memoryview(str unicode_string, const bint check_2_bytes)
|
||||
|
||||
|
||||
cdef bint _is_searched_char_in_search_chars_v(
|
||||
const unsigned short searched_char,
|
||||
const unsigned char[:] search_chars_v,
|
||||
const unsigned int search_chars_v_len,
|
||||
)
|
||||
|
||||
|
||||
cdef void _set_found_char_buf(
|
||||
const bint suffs_not_prefs,
|
||||
const unsigned char[:] searched_string_v,
|
||||
const unsigned int searched_string_len,
|
||||
const unsigned char[:] search_chars_v,
|
||||
const unsigned int search_chars_v_len,
|
||||
char* found_char_buf,
|
||||
const unsigned int found_char_buf_len,
|
||||
cdef void _populate_search_buf(
|
||||
const Py_UCS4* text_buf,
|
||||
const int tok_idx,
|
||||
const int tok_len,
|
||||
Py_UCS4* search_buf,
|
||||
Py_UCS4* ref_buf,
|
||||
const int search_buf_len,
|
||||
Py_UCS4* finding_buf,
|
||||
const int finding_buf_len,
|
||||
bint suffs_not_prefs
|
||||
)
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -181,9 +181,13 @@ class Doc:
|
|||
pref_lengths: List[int],
|
||||
suff_lengths: List[int],
|
||||
pref_search_chars: str,
|
||||
pref_ref_chars: str,
|
||||
pref_search_char_length: int,
|
||||
pref_search_lengths: List[int],
|
||||
suff_search_chars: str,
|
||||
suff_search_lengths: List[int]
|
||||
suff_ref_chars: str,
|
||||
suff_search_char_length: int,
|
||||
suff_search_lengths: List[int],
|
||||
) -> Ints2d: ...
|
||||
@staticmethod
|
||||
def _get_array_attrs() -> Tuple[Any]: ...
|
||||
|
|
|
|||
|
|
@ -3,7 +3,7 @@ from typing import Set, List
|
|||
|
||||
cimport cython
|
||||
cimport numpy as np
|
||||
from libc.string cimport memcpy
|
||||
from libc.string cimport memcpy, memcmp, memset
|
||||
from libc.math cimport sqrt
|
||||
from libc.stdint cimport int32_t, uint64_t
|
||||
|
||||
|
|
@ -42,12 +42,6 @@ from ..util import get_words_and_spaces
|
|||
|
||||
DEF PADDING = 5
|
||||
|
||||
cdef extern from *:
|
||||
Py_UCS4 PyUnicode_READ(int kind, void *data, int index)
|
||||
void* PyUnicode_DATA(void* o)
|
||||
int PyUnicode_KIND(void *data)
|
||||
Py_UCS4 Py_UNICODE_TOLOWER(Py_UCS4 ch)
|
||||
|
||||
cdef int bounds_check(int i, int length, int padding) except -1:
|
||||
if (i + padding) < 0:
|
||||
raise IndexError(Errors.E026.format(i=i, length=length))
|
||||
|
|
@ -111,6 +105,16 @@ class SetEntsDefault(str, Enum):
|
|||
return list(cls.__members__.keys())
|
||||
|
||||
|
||||
cdef extern from "unicodeobject.h":
|
||||
Py_UCS4 PyUnicode_READ(int kind, void *data, int index)
|
||||
void* PyUnicode_DATA(void* o)
|
||||
void PyUnicode_READY(void * o)
|
||||
int PyUnicode_KIND(void *data)
|
||||
int PyUnicode_IS_COMPACT(void *data)
|
||||
|
||||
Py_UCS4 Py_UNICODE_TOLOWER(Py_UCS4 ch)
|
||||
|
||||
|
||||
cdef class Doc:
|
||||
"""A sequence of Token objects. Access sentences and named entities, export
|
||||
annotations to numpy arrays, losslessly serialize to compressed binary
|
||||
|
|
@ -1742,33 +1746,37 @@ cdef class Doc:
|
|||
|
||||
|
||||
def get_character_combination_hashes(
|
||||
self,
|
||||
self,
|
||||
*,
|
||||
bint case_sensitive,
|
||||
bint cs,
|
||||
pref_lengths: List[int],
|
||||
suff_lengths: List[int],
|
||||
str pref_search_chars,
|
||||
char* pref_search,
|
||||
char* pref_ref,
|
||||
int pref_s_char_l,
|
||||
pref_search_lengths: List[int],
|
||||
str suff_search_chars,
|
||||
suff_search_lengths: List[int]
|
||||
char* suff_search,
|
||||
char* suff_ref,
|
||||
int suff_s_char_l,
|
||||
suff_search_lengths: List[int],
|
||||
):
|
||||
"""
|
||||
Returns a 2D NumPy array where the rows represent tokens and the columns represent hashes of various character combinations
|
||||
derived from the string (text/orth) of each token.
|
||||
|
||||
case_sensitive: if *False*, the lower-case version of each token string is used as the basis for generating hashes. Note that
|
||||
if *case_sensitive==False*, upper-case characters in *search_chars* will not be found in token strings.
|
||||
cs: if *False*, the lower-case version of each token string is used as the basis for generating hashes. Note that
|
||||
if *cs==False*, upper-case characters in *search_chars* will not be found in token strings.
|
||||
pref_lengths: an integer list specifying the lengths of prefixes to be hashed. For example, if *pref_lengths==[2, 3]*,
|
||||
the prefixes hashed for "spaCy" would be "sp" and "spa".
|
||||
suff_lengths: an integer list specifying the lengths of suffixes to be hashed. For example, if *suff_lengths==[2, 3]* and
|
||||
*case_sensitive == True*, the suffixes hashed for "spaCy" would be "Cy" and "aCy".
|
||||
pref_search_chars: a string containing characters to search for within each token, starting at the beginning.
|
||||
pref_search_lengths: an integer list specifying the lengths of search results to be hashed. For example if
|
||||
*pref_search_lengths==[1, 2]*, *pref_search_chars=="aC" and *case_sensitive==False*, the searched strings hashed for
|
||||
*pref_search_lengths==[1, 2]*, *pref_search_chars=="aC" and *cs==False*, the searched strings hashed for
|
||||
"spaCy" would be "a" and "ac".
|
||||
suff_search_chars: a string containing characters to search for within each token, starting at the end.
|
||||
suff_search_lengths: an integer list specifying the lengths of search results to be hashed. For example if
|
||||
*suff_search_lengths==[1, 2]*, *suff_search_chars=="aC" and *case_sensitive==False*, the searched strings hashed for
|
||||
*suff_search_lengths==[1, 2]*, *suff_search_chars=="aC" and *cs==False*, the searched strings hashed for
|
||||
"spaCy" would be "c" and "ca".
|
||||
|
||||
For a document with tokens ["spaCy", "and", "Prodigy"], the NumPy array returned by
|
||||
|
|
@ -1779,99 +1787,61 @@ cdef class Doc:
|
|||
[hash("Pr") ,hash("gy"), hash("digy"), hash("rodigy"), hash("y"), hash("y ")]]
|
||||
"""
|
||||
|
||||
cdef int max_pref_l = max(pref_lengths) if len(pref_lengths) > 0 else 0
|
||||
cdef int max_suff_l = max(suff_lengths) if len(suff_lengths) > 0 else 0
|
||||
cdef int aff_buf_l = max_pref_l + max_suff_l
|
||||
cdef int max_s_pref_l = max(pref_search_lengths) if len(pref_search_lengths) > 0 else 0
|
||||
cdef int max_s_suff_l = max(suff_search_lengths) if len(suff_search_lengths) > 0 else 0
|
||||
|
||||
cdef int longest_pref = max(pref_lengths) if len(pref_lengths) > 0 else 0
|
||||
cdef int longest_suff = max(suff_lengths) if len(suff_lengths) > 0 else 0
|
||||
cdef Py_UCS4* affix_buf = <Py_UCS4*>self.mem.alloc(4, longest_pref + longest_suff)
|
||||
|
||||
cdef void* text_ptr = <void*> self.text
|
||||
cdef void* text_data_ptr = <void*> PyUnicode_DATA(text_ptr) # todo change to const void
|
||||
cdef unsigned int unicode_byte_width = PyUnicode_KIND(text_ptr), num_toks = len(self), tok_idx, token_idx, token_len
|
||||
|
||||
cdef TokenC token_c
|
||||
cdef str working_str
|
||||
|
||||
for tok_idx in range(num_toks):
|
||||
token_c = self.c[tok_idx]
|
||||
token_idx = token_c.idx
|
||||
token_len = token_c.lex.length
|
||||
_populate_affix_buf(
|
||||
text_data_ptr,
|
||||
unicode_byte_width,
|
||||
token_idx,
|
||||
token_len,
|
||||
affix_buf,
|
||||
longest_pref,
|
||||
longest_suff,
|
||||
not case_sensitive
|
||||
)
|
||||
|
||||
|
||||
cdef const unsigned char[:] pref_search_chars_v = _get_utf16_memoryview(pref_search_chars, True)
|
||||
cdef const unsigned char[:] suff_search_chars_v = _get_utf16_memoryview(suff_search_chars, True)
|
||||
cdef unsigned int longest_search_length = max(pref_search_lengths + suff_search_lengths) if len(pref_search_lengths + suff_search_lengths) > 0 else 0
|
||||
cdef bytes found_char_buf_bytes = (bytes(" " * longest_search_length, "UTF-16"))[2:] # first two bytes express endianness
|
||||
cdef char* found_char_buf = found_char_buf_bytes
|
||||
cdef unsigned int pref_search_chars_v_len = len(pref_search_chars_v), suff_search_chars_v_len = len(suff_search_chars_v),
|
||||
cdef unsigned int found_char_buf_len = len(found_char_buf_bytes)
|
||||
cdef Py_UCS4* aff_buf = <Py_UCS4*>self.mem.alloc(4, aff_buf_l)
|
||||
cdef Py_UCS4* pref_s_buf = <Py_UCS4*>pref_search
|
||||
cdef Py_UCS4* pref_r_buf = <Py_UCS4*>pref_ref
|
||||
cdef Py_UCS4* pref_f_buf = <Py_UCS4*>self.mem.alloc(4, max_s_pref_l)
|
||||
cdef Py_UCS4* suff_s_buf = <Py_UCS4*>suff_search
|
||||
cdef Py_UCS4* suff_r_buf = <Py_UCS4*>suff_ref
|
||||
cdef Py_UCS4* suff_f_buf = <Py_UCS4*>self.mem.alloc(4, max_s_suff_l)
|
||||
|
||||
cdef unsigned int num_pref_norm_hashes = len(pref_lengths), num_suff_norm_hashes = len(suff_lengths)
|
||||
cdef unsigned int num_pref_search_hashes = len(pref_search_lengths)
|
||||
cdef unsigned int num_suff_search_hashes = len(suff_search_lengths)
|
||||
cdef np.ndarray[np.int64_t, ndim=2] hashes = numpy.empty((num_toks, num_pref_norm_hashes + num_suff_norm_hashes + num_pref_search_hashes + num_suff_norm_hashes), dtype="int64")
|
||||
cdef bytes encoded_text = self.text.encode("utf-32le")
|
||||
cdef char* intermediate_text = encoded_text
|
||||
cdef Py_UCS4* text_buf = <Py_UCS4*> intermediate_text
|
||||
|
||||
cdef const unsigned char[:] tok_str_v
|
||||
cdef unsigned int tok_str_v_len, hash_idx, affix_start, char_comb_len
|
||||
cdef attr_t num_tok_attr
|
||||
cdef str str_tok_attr
|
||||
cdef unsigned int num_toks = len(self), aff_len
|
||||
cdef unsigned int h_pref_n = len(pref_lengths)
|
||||
cdef unsigned int h_suff_n = len(suff_lengths), h_suff_end_idx = len(pref_lengths) + len(suff_lengths)
|
||||
cdef unsigned int h_pref_s_n = len(pref_search_lengths), h_pref_s_end_idx = h_suff_end_idx + h_pref_s_n
|
||||
cdef unsigned int h_suff_s_n = len(suff_search_lengths), h_suff_s_end_idx = h_pref_s_end_idx + h_suff_s_n
|
||||
cdef np.ndarray[np.int64_t, ndim=2] hashes = numpy.empty((num_toks, h_suff_s_end_idx), dtype="int64")
|
||||
|
||||
for tok_idx in range(num_toks):
|
||||
num_tok_attr = self.c[tok_idx].lex.orth if case_sensitive else self.c[tok_idx].lex.lower
|
||||
str_tok_attr = self.vocab.strings[num_tok_attr]
|
||||
tok_str_v = _get_utf16_memoryview(str_tok_attr, False)
|
||||
tok_str_v_len = len(tok_str_v)
|
||||
cdef TokenC tok_c
|
||||
|
||||
for hash_idx in range(num_pref_norm_hashes):
|
||||
char_comb_len = pref_lengths[hash_idx] * 2
|
||||
if char_comb_len > tok_str_v_len:
|
||||
char_comb_len = tok_str_v_len
|
||||
hashes[tok_idx, hash_idx] = hash32(<void*> &tok_str_v[0], char_comb_len, 0)
|
||||
|
||||
for hash_idx in range(num_pref_norm_hashes, num_pref_norm_hashes + num_suff_norm_hashes):
|
||||
char_comb_len = suff_lengths[hash_idx - num_pref_norm_hashes] * 2
|
||||
if char_comb_len > tok_str_v_len:
|
||||
char_comb_len = tok_str_v_len
|
||||
affix_start = tok_str_v_len - char_comb_len
|
||||
hashes[tok_idx, hash_idx] = hash32(<void*> &tok_str_v[affix_start], char_comb_len, 0)
|
||||
|
||||
_set_found_char_buf(
|
||||
False,
|
||||
tok_str_v,
|
||||
tok_str_v_len,
|
||||
pref_search_chars_v,
|
||||
pref_search_chars_v_len,
|
||||
found_char_buf,
|
||||
found_char_buf_len,
|
||||
)
|
||||
for tok_i in range(num_toks):
|
||||
tok_c = self.c[tok_i]
|
||||
tok_idx = tok_c.idx
|
||||
tok_len = tok_c.lex.length
|
||||
|
||||
for hash_idx in range(num_pref_norm_hashes + num_suff_norm_hashes, num_pref_norm_hashes + num_suff_norm_hashes + num_pref_search_hashes):
|
||||
char_comb_len = pref_search_lengths[hash_idx - (num_pref_norm_hashes + num_suff_norm_hashes)] * 2
|
||||
hashes[tok_idx, hash_idx] = hash32(found_char_buf, char_comb_len, 0)
|
||||
_populate_aff_buf(text_buf, tok_idx, tok_len, aff_buf, max_pref_l, max_suff_l, not cs)
|
||||
_populate_search_buf(text_buf, tok_idx, tok_len, pref_s_buf, pref_r_buf, pref_s_char_l, pref_f_buf, max_s_pref_l, False)
|
||||
_populate_search_buf(text_buf, tok_idx, tok_len, suff_s_buf, suff_r_buf, suff_s_char_l, suff_f_buf, max_s_suff_l, True)
|
||||
|
||||
for hash_idx in range(h_pref_n):
|
||||
aff_len = pref_lengths[hash_idx]
|
||||
hashes[tok_i, hash_idx] = hash32(aff_buf, aff_len * 4, 0)
|
||||
|
||||
_set_found_char_buf(
|
||||
True,
|
||||
tok_str_v,
|
||||
tok_str_v_len,
|
||||
suff_search_chars_v,
|
||||
suff_search_chars_v_len,
|
||||
found_char_buf,
|
||||
found_char_buf_len,
|
||||
)
|
||||
for hash_idx in range(h_pref_n, h_suff_end_idx):
|
||||
aff_len = suff_lengths[hash_idx - h_pref_n]
|
||||
hashes[tok_i, hash_idx] = hash32(aff_buf + aff_buf_l - aff_len, aff_len * 4, 0)
|
||||
|
||||
for hash_idx in range(h_suff_end_idx, h_pref_s_end_idx):
|
||||
aff_len = pref_search_lengths[hash_idx - h_suff_end_idx]
|
||||
hashes[tok_i, hash_idx] = hash32(pref_f_buf, aff_len * 4, 0)
|
||||
|
||||
for hash_idx in range(num_pref_norm_hashes + num_suff_norm_hashes + num_pref_search_hashes, num_pref_norm_hashes + num_suff_norm_hashes + num_pref_search_hashes + num_suff_search_hashes):
|
||||
char_comb_len = suff_search_lengths[hash_idx - (num_pref_norm_hashes + num_suff_norm_hashes + num_pref_search_hashes)] * 2
|
||||
hashes[tok_idx, hash_idx] = hash32(found_char_buf, char_comb_len, 0)
|
||||
for hash_idx in range(h_pref_s_end_idx, h_suff_s_end_idx):
|
||||
aff_len = suff_search_lengths[hash_idx - h_pref_s_end_idx]
|
||||
hashes[tok_i, hash_idx] = hash32(suff_f_buf, aff_len * 4, 0)
|
||||
|
||||
self.mem.free(aff_buf)
|
||||
self.mem.free(pref_f_buf)
|
||||
self.mem.free(suff_f_buf)
|
||||
return hashes
|
||||
|
||||
@staticmethod
|
||||
|
|
@ -2055,12 +2025,11 @@ cdef int [:,:] _get_lca_matrix(Doc doc, int start, int end):
|
|||
return lca_matrix
|
||||
|
||||
|
||||
cdef void _populate_affix_buf(
|
||||
const void* str_data_ptr,
|
||||
const unsigned int unicode_byte_width,
|
||||
const int word_idx,
|
||||
const int word_len,
|
||||
Py_UCS4* affix_buf,
|
||||
cdef void _populate_aff_buf(
|
||||
const Py_UCS4* text_buf,
|
||||
const int tok_idx,
|
||||
const int tok_len,
|
||||
Py_UCS4* aff_buf,
|
||||
const int pref_length,
|
||||
const int suff_length,
|
||||
const bint to_lower
|
||||
|
|
@ -2070,107 +2039,75 @@ cdef void _populate_affix_buf(
|
|||
|
||||
str_data_ptr: a pointer to the raw data in the containing string, which must be in canonical
|
||||
Unicode form (see PEP 393).
|
||||
unicode_byte_width: the number of bytes occupied by each character in the containing string.
|
||||
kind: the number of bytes occupied by each character in the containing string.
|
||||
word_idx: the index of the first character of the word within the containing string.
|
||||
word_len: the length of the word.
|
||||
affix_buf: the buffer to populate.
|
||||
aff_buf: the buffer to populate.
|
||||
pref_length: the length of the prefix.
|
||||
suff_length: the length of the suffix.
|
||||
to_lower: if *True*, any upper case characters in either affix are converted to lower case.
|
||||
"""
|
||||
cdef int affix_buf_idx = 0, buf_size = pref_length + suff_length, in_word_idx
|
||||
cdef Py_UCS4 working_wchar
|
||||
cdef int aff_buf_idx = 0, buf_size = pref_length + suff_length, in_word_idx
|
||||
|
||||
while aff_buf_idx < pref_length and aff_buf_idx < tok_len:
|
||||
|
||||
while affix_buf_idx < pref_length and affix_buf_idx < word_len:
|
||||
working_wchar = PyUnicode_READ(unicode_byte_width, str_data_ptr, in_word_idx)
|
||||
memcpy(aff_buf + aff_buf_idx, text_buf + tok_idx + aff_buf_idx, 4)
|
||||
if to_lower:
|
||||
working_wchar = Py_UNICODE_TOLOWER(working_wchar)
|
||||
memcpy(affix_buf + affix_buf_idx, &working_wchar, 4)
|
||||
affix_buf_idx += 1
|
||||
aff_buf[aff_buf_idx] = Py_UNICODE_TOLOWER(aff_buf[aff_buf_idx])
|
||||
aff_buf_idx += 1
|
||||
|
||||
while (affix_buf_idx < buf_size - suff_length) or (affix_buf_idx < buf_size - word_len):
|
||||
if aff_buf_idx < buf_size - tok_len:
|
||||
# fill out the empty middle part of the buffer with zeros
|
||||
affix_buf[affix_buf_idx] = 0
|
||||
affix_buf_idx += 1
|
||||
memset(aff_buf, 0, buf_size - suff_length - aff_buf_idx)
|
||||
|
||||
while affix_buf_idx < buf_size:
|
||||
in_word_idx = affix_buf_idx + word_len - buf_size
|
||||
while aff_buf_idx < buf_size:
|
||||
in_word_idx = aff_buf_idx + tok_len - buf_size
|
||||
# for suffixes we have to track the in-word index separately from the in-buffer index
|
||||
if in_word_idx < pref_length:
|
||||
# we've already retrieved this character as part of the prefix, so copy it from there
|
||||
# as that's quicker than retrieving it from the input string a second time
|
||||
memcpy(affix_buf + affix_buf_idx, affix_buf + in_word_idx, 4)
|
||||
memcpy(aff_buf + aff_buf_idx, aff_buf + in_word_idx, 4)
|
||||
else:
|
||||
working_wchar = PyUnicode_READ(unicode_byte_width, str_data_ptr, word_idx + in_word_idx)
|
||||
memcpy(aff_buf + aff_buf_idx, text_buf + tok_idx + in_word_idx, 4)
|
||||
if to_lower:
|
||||
working_wchar = Py_UNICODE_TOLOWER(working_wchar)
|
||||
memcpy(affix_buf + affix_buf_idx, &working_wchar, 4)
|
||||
affix_buf_idx += 1
|
||||
aff_buf[aff_buf_idx] = Py_UNICODE_TOLOWER(aff_buf[aff_buf_idx])
|
||||
aff_buf_idx += 1
|
||||
|
||||
|
||||
|
||||
cdef const unsigned char[:] _get_utf16_memoryview(str unicode_string, const bint check_2_bytes):
|
||||
"""
|
||||
Return a memory view of the UTF-16 representation of a string with the default endianness of the platform.
|
||||
Throw a ValueError if *check_2_bytes == True* and one or more characters in the UTF-16 representation
|
||||
occupies four bytes rather than two.
|
||||
"""
|
||||
cdef const unsigned char[:] view = unicode_string.encode("UTF-16")
|
||||
view = view[2:] # first two bytes express endianness
|
||||
cdef unsigned int unicode_len, view_len
|
||||
if check_2_bytes:
|
||||
unicode_len = len(unicode_string)
|
||||
view_len = len(view)
|
||||
if unicode_len * 2 != view_len:
|
||||
raise ValueError(Errors.E1046)
|
||||
return view
|
||||
|
||||
|
||||
cdef bint _is_searched_char_in_search_chars_v(
|
||||
const unsigned short searched_char,
|
||||
const unsigned char[:] search_chars_v,
|
||||
const unsigned int search_chars_v_len
|
||||
cdef void _populate_search_buf(
|
||||
const Py_UCS4* text_buf,
|
||||
const int tok_idx,
|
||||
const int tok_len,
|
||||
Py_UCS4* search_buf,
|
||||
Py_UCS4* ref_buf,
|
||||
const int search_buf_len,
|
||||
Py_UCS4* finding_buf,
|
||||
const int finding_buf_len,
|
||||
bint suffs_not_prefs
|
||||
):
|
||||
cdef unsigned int search_chars_v_idx = 0
|
||||
while search_chars_v_idx < search_chars_v_len:
|
||||
if searched_char == (<unsigned short*> &search_chars_v[search_chars_v_idx])[0]:
|
||||
return True
|
||||
search_chars_v_idx += 2
|
||||
return False
|
||||
cdef unsigned int finding_buf_idx = 0, text_string_idx = tok_idx + (tok_len - 1) if suffs_not_prefs else tok_idx
|
||||
cdef unsigned int search_buf_idx
|
||||
cdef int cmp_res
|
||||
|
||||
|
||||
cdef void _set_found_char_buf(
|
||||
const bint suffs_not_prefs,
|
||||
const unsigned char[:] searched_string_v,
|
||||
const unsigned int searched_string_v_len,
|
||||
const unsigned char[:] search_chars_v,
|
||||
const unsigned int search_chars_v_len,
|
||||
char* found_char_buf,
|
||||
const unsigned int found_char_buf_len,
|
||||
):
|
||||
""" Pick the UTF-16 characters from *searched_string_v* that are also in *search_chars_v* and writes them in order to *found_char_buf*.
|
||||
If *suffs_not_prefs*, the search starts from the end of *searched_string_v* rather than from the beginning.
|
||||
"""
|
||||
cdef unsigned int found_char_buf_idx = 0, searched_string_idx = searched_string_v_len - 2 if suffs_not_prefs else 0
|
||||
cdef unsigned short searched_char, SPACE = 32
|
||||
|
||||
while found_char_buf_idx < found_char_buf_len:
|
||||
searched_char = (<unsigned short*> &searched_string_v[searched_string_idx])[0]
|
||||
if _is_searched_char_in_search_chars_v(searched_char, search_chars_v, search_chars_v_len):
|
||||
memcpy(found_char_buf + found_char_buf_idx, &searched_char, 2)
|
||||
found_char_buf_idx += 2
|
||||
if suffs_not_prefs:
|
||||
if searched_string_idx <= 0:
|
||||
while finding_buf_idx < finding_buf_len:
|
||||
for search_buf_idx in range (search_buf_len):
|
||||
cmp_res = memcmp(search_buf + search_buf_idx, text_buf + text_string_idx, 4)
|
||||
if cmp_res == 0:
|
||||
memcpy(finding_buf + finding_buf_idx, ref_buf + search_buf_idx, 4)
|
||||
finding_buf_idx += 1
|
||||
if cmp_res >= 0:
|
||||
break
|
||||
searched_string_idx -= 2
|
||||
if suffs_not_prefs:
|
||||
if text_string_idx <= tok_idx:
|
||||
break
|
||||
text_string_idx -= 1
|
||||
else:
|
||||
searched_string_idx += 2
|
||||
if searched_string_idx >= searched_string_v_len:
|
||||
text_string_idx += 1
|
||||
if text_string_idx >= tok_idx + tok_len:
|
||||
break
|
||||
|
||||
while found_char_buf_idx < found_char_buf_len:
|
||||
memcpy(found_char_buf + found_char_buf_idx, &SPACE, 2)
|
||||
found_char_buf_idx += 2
|
||||
if finding_buf_idx < finding_buf_len:
|
||||
memset(finding_buf + finding_buf_idx, 0, finding_buf_len - finding_buf_idx)
|
||||
|
||||
|
||||
|
||||
def pickle_doc(doc):
|
||||
|
|
|
|||
|
|
@ -1739,104 +1739,68 @@ def all_equal(iterable):
|
|||
|
||||
def get_byte_arrays_for_search_chars(
|
||||
search_chars: str, case_sensitive: bool
|
||||
) -> Tuple[bytes, bytes, bytes, bytes, bytes, bytes]:
|
||||
) -> Tuple[bytes, bytes]:
|
||||
"""
|
||||
The text of a spaCy document is stored as a Python-internal Unicode representation
|
||||
as defined by PEP 393. Each character in such a representation has the width of the
|
||||
longest character in the string, which is either 1, 2 or 4 bytes.
|
||||
|
||||
This function supports the rich feature extractor. It returns search byte arrays with
|
||||
1-, 2- and 4-byte character widths that are used for comparison with each of the three
|
||||
representation types when searching document texts for search characters. Each byte array
|
||||
contains characters that are as wide or narrower than its own width; a byte array can
|
||||
ignore characters that are wider than its own width because a spaCy document with the
|
||||
corresponding representation width could never contain characters wider than that width.
|
||||
4-byte character width that are used for comparison when searching document texts
|
||||
for search characters. The encoding is little-endian regardless of architecture, as
|
||||
this is what is expected by the murmurhash library used downstream.
|
||||
|
||||
When characters corresponding to search characters are found within a spaCy token
|
||||
string, they are concatenated together and the resulting "finding byte arrays" are hashed.
|
||||
It is crucial that the characters in all finding byte arrays representing a given sequence of
|
||||
characters share the same width so that they all yield the same hash values. While it
|
||||
would be possible to use the narrowest possible width for the sequence like PEP 393 does,
|
||||
determining this would entain unnecessary processing. Instead, finding byte arrays always use
|
||||
a 4-byte width. Each of the three search byte array therefore has a corresponding finding
|
||||
byte array that is used to build up the finding byte arrays for specific document token strings.
|
||||
|
||||
If *case_sensitive==False*, the lower- or uppercase counterparts of any characters that
|
||||
Alongside the "search byte array" against which words from document texts are compared
|
||||
is the "ref byte array". When a character from the search byte array is matched,
|
||||
the character at the corresponding position in the ref byte array is added to the
|
||||
byte sequence of the configured length that is then hashed. This enables case-sensitivity
|
||||
to be handled without converting the case of the words being searched: if
|
||||
*case_sensitive==False*, the lower- or uppercase counterparts of any characters that
|
||||
have case are added to the search byte arrays, and both the original character and its
|
||||
other-cased counterpart map to the lower-case version in the finding byte array.
|
||||
|
||||
All encodings are little-endian regardless of architecture, as this is what is expected by the
|
||||
murmurhash library used downstream.
|
||||
other-cased counterpart map to the lower-case version in the ref byte array.
|
||||
"""
|
||||
|
||||
def encode(ch: str, width: int) -> bytes:
|
||||
def encode(ch: str) -> bytes:
|
||||
"""
|
||||
ch: a single character
|
||||
int: the width of the character encoding to use
|
||||
"""
|
||||
if width == 4:
|
||||
return ch.encode("UTF-32LE")
|
||||
elif width == 2:
|
||||
return ch.encode("UTF-16LE")
|
||||
else:
|
||||
return ch.encode("UTF-8")
|
||||
|
||||
return ch.encode("UTF-32LE")
|
||||
|
||||
def add_to_byte_arrays(
|
||||
search: List[bytes], finding: List[bytes], ch: str, width: int
|
||||
search: List[bytes], ref: List[bytes], ch: str
|
||||
) -> None:
|
||||
"""Add the byte representations of *ch* with representation of width
|
||||
*width* to the two byte array lists.
|
||||
"""Add the byte representations of *ch* to the two byte array lists.
|
||||
"""
|
||||
this_char_bytes = encode(ch, width)
|
||||
this_char_bytes_f = encode(ch, 4)
|
||||
this_char_bytes = encode(ch)
|
||||
if not case_sensitive and ch.islower():
|
||||
if this_char_bytes not in search:
|
||||
search.append(this_char_bytes)
|
||||
finding.append(this_char_bytes_f)
|
||||
upper_char_bytes = encode(ch.upper(), width)
|
||||
ref.append(this_char_bytes)
|
||||
upper_char_bytes = encode(ch.upper())
|
||||
if upper_char_bytes not in search:
|
||||
search.append(upper_char_bytes)
|
||||
finding.append(this_char_bytes_f)
|
||||
ref.append(this_char_bytes)
|
||||
elif not case_sensitive and ch.isupper():
|
||||
lower_char_bytes = encode(ch.lower(), width)
|
||||
lower_char_bytes_f = encode(ch.lower(), 4)
|
||||
lower_char_bytes = encode(ch.lower())
|
||||
if this_char_bytes not in search:
|
||||
search.append(this_char_bytes)
|
||||
finding.append(lower_char_bytes_f)
|
||||
ref.append(lower_char_bytes)
|
||||
if lower_char_bytes not in search:
|
||||
search.append(lower_char_bytes)
|
||||
finding.append(lower_char_bytes_f)
|
||||
ref.append(lower_char_bytes)
|
||||
elif this_char_bytes not in search:
|
||||
search.append(this_char_bytes)
|
||||
finding.append(this_char_bytes_f)
|
||||
ref.append(this_char_bytes)
|
||||
|
||||
def get_ordered_raw_bytes(
|
||||
search: List[bytes], finding: List[bytes]
|
||||
search: List[bytes], ref: List[bytes]
|
||||
) -> Tuple[bytes, bytes]:
|
||||
"""Flatten the two lists, ordering both by the entries in *search*
|
||||
using the native endianness of the platform.
|
||||
"""
|
||||
num_search = [list(entry) for entry in search]
|
||||
search = [entry for _, entry in sorted(zip(num_search, search))]
|
||||
finding = [entry for _, entry in sorted(zip(num_search, finding))]
|
||||
return b"".join(search), b"".join(finding)
|
||||
ref = [entry for _, entry in sorted(zip(num_search, ref))]
|
||||
return b"".join(search), b"".join(ref)
|
||||
|
||||
w1_search: List[bytes] = []
|
||||
w1_finding: List[bytes] = []
|
||||
w2_search: List[bytes] = []
|
||||
w2_finding: List[bytes] = []
|
||||
w4_search: List[bytes] = []
|
||||
w4_finding: List[bytes] = []
|
||||
search: List[bytes] = []
|
||||
ref: List[bytes] = []
|
||||
for ch in search_chars:
|
||||
add_to_byte_arrays(w4_search, w4_finding, ch, 4)
|
||||
if ord(ch) >= 65536:
|
||||
continue
|
||||
add_to_byte_arrays(w2_search, w2_finding, ch, 2)
|
||||
if ord(ch) >= 128:
|
||||
continue
|
||||
add_to_byte_arrays(w1_search, w1_finding, ch, 1)
|
||||
return (
|
||||
get_ordered_raw_bytes(w1_search, w1_finding)
|
||||
+ get_ordered_raw_bytes(w2_search, w2_finding)
|
||||
+ get_ordered_raw_bytes(w4_search, w4_finding)
|
||||
)
|
||||
add_to_byte_arrays(search, ref, ch)
|
||||
return get_ordered_raw_bytes(search, ref)
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user