spaCy/spacy/tokens.pyx

199 lines
6.1 KiB
Cython

# cython: profile=True
from spacy.word cimport Lexeme
from spacy.lexeme cimport lexeme_check_flag
from spacy.lexeme cimport lexeme_string_view
cdef enum Flags:
Flag_IsAlpha
Flag_IsAscii
Flag_IsDigit
Flag_IsLower
Flag_IsPunct
Flag_IsSpace
Flag_IsTitle
Flag_IsUpper
Flag_CanAdj
Flag_CanAdp
Flag_CanAdv
Flag_CanConj
Flag_CanDet
Flag_CanNoun
Flag_CanNum
Flag_CanPdt
Flag_CanPos
Flag_CanPron
Flag_CanPrt
Flag_CanPunct
Flag_CanVerb
Flag_OftLower
Flag_OftTitle
Flag_OftUpper
Flag_N
cdef enum Views:
View_CanonForm
View_WordShape
View_NonSparse
View_Asciied
View_N
cdef class Tokens:
"""A sequence of references to Lexeme objects.
The Tokens class provides fast and memory-efficient access to lexical features,
and can efficiently export the data to a numpy array. Specific languages
create their own Tokens subclasses, to provide more convenient access to
language-specific features.
>>> from spacy.en import EN
>>> tokens = EN.tokenize('An example sentence.')
>>> tokens.string(0)
'An'
>>> tokens.prob(0) > tokens.prob(1)
True
>>> tokens.can_noun(0)
False
>>> tokens.can_noun(1)
True
"""
def __cinit__(self, string_length=0):
size = int(string_length / 3) if string_length >= 3 else 1
self.v = new vector[LexemeC*]()
self.v.reserve(size)
def __getitem__(self, i):
return Lexeme(<size_t>self.v.at(i))
def __len__(self):
return self.v.size()
def __dealloc__(self):
del self.v
def append(self, Lexeme lexeme):
self.v.push_back(lexeme._c)
cpdef unicode string(self, size_t i):
cdef bytes utf8_string = self.v.at(i).string[:self.v.at(i).length]
cdef unicode string = utf8_string.decode('utf8')
return string
cpdef size_t id(self, size_t i) except 0:
return <size_t>&self.v.at(i).string
cpdef double prob(self, size_t i) except 1:
return self.v.at(i).prob
cpdef size_t cluster(self, size_t i) except *:
return self.v.at(i).cluster
cpdef bint check_flag(self, size_t i, size_t flag_id) except *:
return lexeme_check_flag(self.v.at(i), flag_id)
cpdef unicode string_view(self, size_t i, size_t view_id):
return lexeme_string_view(self.v.at(i), view_id)
# Provide accessor methods for the features supported by the language.
# Without these, clients have to use the underlying string_view and check_flag
# methods, which requires them to know the IDs.
cpdef unicode canon_string(self, size_t i):
return lexeme_string_view(self.v.at(i), View_CanonForm)
cpdef unicode shape_string(self, size_t i):
return lexeme_string_view(self.v.at(i), View_WordShape)
cpdef unicode non_sparse_string(self, size_t i):
return lexeme_string_view(self.v.at(i), View_NonSparse)
cpdef unicode asciied_string(self, size_t i):
return lexeme_string_view(self.v.at(i), View_Asciied)
cpdef size_t canon(self, size_t i) except *:
return id(self.v.at(i).views[<size_t>View_CanonForm])
cpdef size_t shape(self, size_t i) except *:
return id(self.v.at(i).views[<size_t>View_WordShape])
cpdef size_t non_sparse(self, size_t i) except *:
return id(self.v.at(i).views[<size_t>View_NonSparse])
cpdef size_t asciied(self, size_t i) except *:
return id(self.v.at(i).views[<size_t>View_Asciied])
cpdef bint is_alpha(self, size_t i) except *:
return lexeme_check_flag(self.v.at(i), Flag_IsAlpha)
cpdef bint is_ascii(self, size_t i) except *:
return lexeme_check_flag(self.v.at(i), Flag_IsAscii)
cpdef bint is_digit(self, size_t i) except *:
return lexeme_check_flag(self.v.at(i), Flag_IsDigit)
cpdef bint is_lower(self, size_t i) except *:
return lexeme_check_flag(self.v.at(i), Flag_IsLower)
cpdef bint is_punct(self, size_t i) except *:
return lexeme_check_flag(self.v.at(i), Flag_IsPunct)
cpdef bint is_space(self, size_t i) except *:
return lexeme_check_flag(self.v.at(i), Flag_IsSpace)
cpdef bint is_title(self, size_t i) except *:
return lexeme_check_flag(self.v.at(i), Flag_IsTitle)
cpdef bint is_upper(self, size_t i) except *:
return lexeme_check_flag(self.v.at(i), Flag_IsUpper)
cpdef bint can_adj(self, size_t i) except *:
return lexeme_check_flag(self.v.at(i), Flag_CanAdj)
cpdef bint can_adp(self, size_t i) except *:
return lexeme_check_flag(self.v.at(i), Flag_CanAdp)
cpdef bint can_adv(self, size_t i) except *:
return lexeme_check_flag(self.v.at(i), Flag_CanAdv)
cpdef bint can_conj(self, size_t i) except *:
return lexeme_check_flag(self.v.at(i), Flag_CanConj)
cpdef bint can_det(self, size_t i) except *:
return lexeme_check_flag(self.v.at(i), Flag_CanDet)
cpdef bint can_noun(self, size_t i) except *:
return lexeme_check_flag(self.v.at(i), Flag_CanNoun)
cpdef bint can_num(self, size_t i) except *:
return lexeme_check_flag(self.v.at(i), Flag_CanNum)
cpdef bint can_pdt(self, size_t i) except *:
return lexeme_check_flag(self.v.at(i), Flag_CanPdt)
cpdef bint can_pos(self, size_t i) except *:
return lexeme_check_flag(self.v.at(i), Flag_CanPos)
cpdef bint can_pron(self, size_t i) except *:
return lexeme_check_flag(self.v.at(i), Flag_CanPron)
cpdef bint can_prt(self, size_t i) except *:
return lexeme_check_flag(self.v.at(i), Flag_CanPrt)
cpdef bint can_punct(self, size_t i) except *:
return lexeme_check_flag(self.v.at(i), Flag_CanPunct)
cpdef bint can_verb(self, size_t i) except *:
return lexeme_check_flag(self.v.at(i), Flag_CanVerb)
cpdef bint oft_lower(self, size_t i) except *:
return lexeme_check_flag(self.v.at(i), Flag_OftLower)
cpdef bint oft_title(self, size_t i) except *:
return lexeme_check_flag(self.v.at(i), Flag_OftTitle)
cpdef bint oft_upper(self, size_t i) except *:
return lexeme_check_flag(self.v.at(i), Flag_OftUpper)