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# ============================================================================
# FILE: buffer.py
# AUTHOR: Shougo Matsushita <Shougo.Matsu at gmail.com>
# License: MIT license
# ============================================================================
from .base import Base
import functools
import operator
from deoplete.util import parse_buffer_pattern, getlines
class Source(Base):
def __init__(self, vim):
super().__init__(vim)
self.name = 'buffer'
self.mark = '[B]'
self.__buffers = {}
self.__max_lines = 5000
def on_event(self, context):
if ((context['bufnr'] not in self.__buffers) or
context['event'] == 'BufWritePost'):
self.__make_cache(context)
def gather_candidates(self, context):
self.__make_cache(context)
buffers = [x['candidates'] for x in self.__buffers.values()
if x['filetype'] in context['filetypes']]
if not buffers:
return []
return [{'word': x} for x in
functools.reduce(operator.add, buffers)]
def __make_cache(self, context):
try:
if (context['bufnr'] in self.__buffers and
context['event'] != 'BufWritePost' and
len(self.vim.current.buffer) > self.__max_lines):
line = context['position'][1]
buffer = self.__buffers[context['bufnr']]
buffer['candidates'] += parse_buffer_pattern(
getlines(self.vim, max([1, line-500]), line+500),
context['keyword_patterns'],
context['complete_str'])
buffer['candidates'] = list(set(buffer['candidates']))
else:
self.__buffers[context['bufnr']] = {
'filetype': context['filetype'],
'candidates': parse_buffer_pattern(
getlines(self.vim),
context['keyword_patterns'],
context['complete_str'])
}
except UnicodeDecodeError:
return []
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