spaCy/spacy/syntax/stateclass.pxd

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from libc.string cimport memcpy, memset
from cymem.cymem cimport Pool
from ..structs cimport TokenC, Entity
from ..vocab cimport EMPTY_LEXEME
cdef class StateClass:
cdef Pool mem
cdef int* _stack
cdef int* _buffer
cdef bint* shifted
cdef TokenC* _sent
cdef Entity* _ents
cdef TokenC _empty_token
cdef int length
cdef int _s_i
cdef int _b_i
cdef int _e_i
cdef int _break
@staticmethod
cdef inline StateClass init(const TokenC* sent, int length):
cdef StateClass self = StateClass(length)
cdef int i
for i in range(length):
self._sent[i] = sent[i]
self._buffer[i] = i
for i in range(length, length + 5):
self._sent[i].lex = &EMPTY_LEXEME
return self
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cdef inline int S(self, int i) nogil:
if i >= self._s_i:
return -1
return self._stack[self._s_i - (i+1)]
cdef inline int B(self, int i) nogil:
if (i + self._b_i) >= self.length:
return -1
return self._buffer[self._b_i + i]
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cdef inline const TokenC* S_(self, int i) nogil:
return self.safe_get(self.S(i))
cdef inline const TokenC* B_(self, int i) nogil:
return self.safe_get(self.B(i))
cdef inline const TokenC* H_(self, int i) nogil:
return self.safe_get(self.H(i))
cdef inline const TokenC* E_(self, int i) nogil:
return self.safe_get(self.E(i))
cdef inline const TokenC* L_(self, int i, int idx) nogil:
return self.safe_get(self.L(i, idx))
cdef inline const TokenC* R_(self, int i, int idx) nogil:
return self.safe_get(self.R(i, idx))
cdef inline const TokenC* safe_get(self, int i) nogil:
if i < 0 or i >= self.length:
return &self._empty_token
else:
return &self._sent[i]
cdef inline int H(self, int i) nogil:
if i < 0 or i >= self.length:
return -1
return self._sent[i].head + i
cdef int E(self, int i) nogil
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cdef int R(self, int i, int idx) nogil
cdef int L(self, int i, int idx) nogil
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cdef inline bint empty(self) nogil:
return self._s_i <= 0
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cdef inline bint eol(self) nogil:
return self.buffer_length() == 0
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cdef inline bint at_break(self) nogil:
return self._break != -1
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cdef inline bint is_final(self) nogil:
return self.stack_depth() <= 0 and self._b_i >= self.length
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cdef inline bint has_head(self, int i) nogil:
return self.safe_get(i).head != 0
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cdef inline int n_L(self, int i) nogil:
return self.safe_get(i).l_kids
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cdef inline int n_R(self, int i) nogil:
return self.safe_get(i).r_kids
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cdef inline bint stack_is_connected(self) nogil:
return False
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cdef inline bint entity_is_open(self) nogil:
if self._e_i < 1:
return False
return self._ents[self._e_i-1].end == -1
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cdef inline int stack_depth(self) nogil:
return self._s_i
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cdef inline int buffer_length(self) nogil:
if self._break != -1:
return self._break - self._b_i
else:
return self.length - self._b_i
cdef void push(self) nogil
cdef void pop(self) nogil
cdef void unshift(self) nogil
cdef void add_arc(self, int head, int child, int label) nogil
cdef void del_arc(self, int head, int child) nogil
cdef void open_ent(self, int label) nogil
cdef void close_ent(self) nogil
cdef void set_ent_tag(self, int i, int ent_iob, int ent_type) nogil
cdef void set_break(self, int i) nogil
cdef void clone(self, StateClass src) nogil
cdef void fast_forward(self) nogil