mirror of https://github.com/explosion/spaCy.git
104 lines
3.5 KiB
Cython
104 lines
3.5 KiB
Cython
# coding: utf8
|
|
from __future__ import unicode_literals
|
|
|
|
from libc.stdio cimport fopen, fclose, fread, fwrite
|
|
from libc.string cimport memcpy
|
|
|
|
|
|
cdef class CFile:
|
|
def __init__(self, loc, mode, on_open_error=None):
|
|
if isinstance(mode, unicode):
|
|
mode_str = mode.encode('ascii')
|
|
else:
|
|
mode_str = mode
|
|
if hasattr(loc, 'as_posix'):
|
|
loc = loc.as_posix()
|
|
self.mem = Pool()
|
|
cdef bytes bytes_loc = loc.encode('utf8') if type(loc) == unicode else loc
|
|
self.fp = fopen(<char*>bytes_loc, mode_str)
|
|
if self.fp == NULL:
|
|
if on_open_error is not None:
|
|
on_open_error()
|
|
else:
|
|
raise IOError("Could not open binary file %s" % bytes_loc)
|
|
self.is_open = True
|
|
|
|
def __dealloc__(self):
|
|
if self.is_open:
|
|
fclose(self.fp)
|
|
|
|
def close(self):
|
|
fclose(self.fp)
|
|
self.is_open = False
|
|
|
|
cdef int read_into(self, void* dest, size_t number, size_t elem_size) except -1:
|
|
st = fread(dest, elem_size, number, self.fp)
|
|
if st != number:
|
|
raise IOError
|
|
|
|
cdef int write_from(self, void* src, size_t number, size_t elem_size) except -1:
|
|
st = fwrite(src, elem_size, number, self.fp)
|
|
if st != number:
|
|
raise IOError
|
|
|
|
cdef void* alloc_read(self, Pool mem, size_t number, size_t elem_size) except *:
|
|
cdef void* dest = mem.alloc(number, elem_size)
|
|
self.read_into(dest, number, elem_size)
|
|
return dest
|
|
|
|
def write_unicode(self, unicode value):
|
|
cdef bytes py_bytes = value.encode('utf8')
|
|
cdef char* chars = <char*>py_bytes
|
|
self.write(sizeof(char), len(py_bytes), chars)
|
|
|
|
|
|
cdef class StringCFile:
|
|
def __init__(self, bytes data, mode, on_open_error=None):
|
|
self.mem = Pool()
|
|
self.is_open = 1 if 'w' in mode else 0
|
|
self._capacity = max(len(data), 8)
|
|
self.size = len(data)
|
|
self.i = 0
|
|
self.data = <unsigned char*>self.mem.alloc(1, self._capacity)
|
|
for i in range(len(data)):
|
|
self.data[i] = data[i]
|
|
|
|
def __dealloc__(self):
|
|
# Important to override this -- or
|
|
# we try to close a non-existant file pointer!
|
|
pass
|
|
|
|
def close(self):
|
|
self.is_open = False
|
|
|
|
def string_data(self):
|
|
cdef bytes byte_string = b'\0' * (self.size)
|
|
bytes_ptr = <char*>byte_string
|
|
for i in range(self.size):
|
|
bytes_ptr[i] = self.data[i]
|
|
print(byte_string)
|
|
return byte_string
|
|
|
|
cdef int read_into(self, void* dest, size_t number, size_t elem_size) except -1:
|
|
if self.i+(number * elem_size) < self.size:
|
|
memcpy(dest, &self.data[self.i], elem_size * number)
|
|
self.i += elem_size * number
|
|
|
|
cdef int write_from(self, void* src, size_t elem_size, size_t number) except -1:
|
|
write_size = number * elem_size
|
|
if (self.size + write_size) >= self._capacity:
|
|
self._capacity = (self.size + write_size) * 2
|
|
self.data = <unsigned char*>self.mem.realloc(self.data, self._capacity)
|
|
memcpy(&self.data[self.size], src, write_size)
|
|
self.size += write_size
|
|
|
|
cdef void* alloc_read(self, Pool mem, size_t number, size_t elem_size) except *:
|
|
cdef void* dest = mem.alloc(number, elem_size)
|
|
self.read_into(dest, number, elem_size)
|
|
return dest
|
|
|
|
def write_unicode(self, unicode value):
|
|
cdef bytes py_bytes = value.encode('utf8')
|
|
cdef char* chars = <char*>py_bytes
|
|
self.write(sizeof(char), len(py_bytes), chars)
|