spaCy/spacy/pipeline/_edit_tree_internals/edit_trees.pxd
Basile Dura b0228d8ea6
ci: add cython linter (#12694)
* chore: add cython-linter dev dependency

* fix: lexeme.pyx

* fix: morphology.pxd

* fix: tokenizer.pxd

* fix: vocab.pxd

* fix: morphology.pxd (line length)

* ci: add cython-lint

* ci: fix cython-lint call

* Fix kb/candidate.pyx.

* Fix kb/kb.pyx.

* Fix kb/kb_in_memory.pyx.

* Fix kb.

* Fix training/ partially.

* Fix training/. Ignore trailing whitespaces and too long lines.

* Fix ml/.

* Fix matcher/.

* Fix pipeline/.

* Fix tokens/.

* Fix build errors. Fix vocab.pyx.

* Fix cython-lint install and run.

* Fix lexeme.pyx, parts_of_speech.pxd, vectors.pyx. Temporarily disable cython-lint execution.

* Fix attrs.pyx, lexeme.pyx, symbols.pxd, isort issues.

* Make cython-lint install conditional. Fix tokenizer.pyx.

* Fix remaining files. Reenable cython-lint check.

* Readded parentheses.

* Fix test_build_dependencies().

* Add explanatory comment to cython-lint execution.

---------

Co-authored-by: Raphael Mitsch <r.mitsch@outlook.com>
2023-07-19 12:03:31 +02:00

102 lines
3.4 KiB
Cython

from libc.stdint cimport uint32_t, uint64_t
from libcpp.unordered_map cimport unordered_map
from libcpp.vector cimport vector
from ...strings cimport StringStore
from ...typedefs cimport attr_t, hash_t, len_t
cdef extern from "<algorithm>" namespace "std" nogil:
void swap[T](T& a, T& b) except + # Only available in Cython 3.
# An edit tree (Müller et al., 2015) is a tree structure that consists of
# edit operations. The two types of operations are string matches
# and string substitutions. Given an input string s and an output string t,
# subsitution and match nodes should be interpreted as follows:
#
# * Substitution node: consists of an original string and substitute string.
# If s matches the original string, then t is the substitute. Otherwise,
# the node does not apply.
# * Match node: consists of a prefix length, suffix length, prefix edit tree,
# and suffix edit tree. If s is composed of a prefix, middle part, and suffix
# with the given suffix and prefix lengths, then t is the concatenation
# prefix_tree(prefix) + middle + suffix_tree(suffix).
#
# For efficiency, we represent strings in substitution nodes as integers, with
# the actual strings stored in a StringStore. Subtrees in match nodes are stored
# as tree identifiers (rather than pointers) to simplify serialization.
cdef uint32_t NULL_TREE_ID
cdef struct MatchNodeC:
len_t prefix_len
len_t suffix_len
uint32_t prefix_tree
uint32_t suffix_tree
cdef struct SubstNodeC:
attr_t orig
attr_t subst
cdef union NodeC:
MatchNodeC match_node
SubstNodeC subst_node
cdef struct EditTreeC:
bint is_match_node
NodeC inner
cdef inline EditTreeC edittree_new_match(
len_t prefix_len,
len_t suffix_len,
uint32_t prefix_tree,
uint32_t suffix_tree
):
cdef MatchNodeC match_node = MatchNodeC(
prefix_len=prefix_len,
suffix_len=suffix_len,
prefix_tree=prefix_tree,
suffix_tree=suffix_tree
)
cdef NodeC inner = NodeC(match_node=match_node)
return EditTreeC(is_match_node=True, inner=inner)
cdef inline EditTreeC edittree_new_subst(attr_t orig, attr_t subst):
cdef EditTreeC node
cdef SubstNodeC subst_node = SubstNodeC(orig=orig, subst=subst)
cdef NodeC inner = NodeC(subst_node=subst_node)
return EditTreeC(is_match_node=False, inner=inner)
cdef inline uint64_t edittree_hash(EditTreeC tree):
cdef MatchNodeC match_node
cdef SubstNodeC subst_node
if tree.is_match_node:
match_node = tree.inner.match_node
return hash((match_node.prefix_len, match_node.suffix_len, match_node.prefix_tree, match_node.suffix_tree))
else:
subst_node = tree.inner.subst_node
return hash((subst_node.orig, subst_node.subst))
cdef struct LCS:
int source_begin
int source_end
int target_begin
int target_end
cdef inline bint lcs_is_empty(LCS lcs):
return lcs.source_begin == 0 and lcs.source_end == 0 and lcs.target_begin == 0 and lcs.target_end == 0
cdef class EditTrees:
cdef vector[EditTreeC] trees
cdef unordered_map[hash_t, uint32_t] map
cdef StringStore strings
cpdef uint32_t add(self, str form, str lemma)
cpdef str apply(self, uint32_t tree_id, str form)
cpdef unicode tree_to_str(self, uint32_t tree_id)
cdef uint32_t _add(self, str form, str lemma)
cdef _apply(self, uint32_t tree_id, str form_part, list lemma_pieces)
cdef uint32_t _tree_id(self, EditTreeC tree)