get_buffer_config

__init__.py

#=============================================================================
# FILE: __init__.py
# AUTHOR: Shougo Matsushita <Shougo.Matsu at gmail.com>
# License: MIT license  {{{
#     Permission is hereby granted, free of charge, to any person obtaining
#     a copy of this software and associated documentation files (the
#     "Software"), to deal in the Software without restriction, including
#     without limitation the rights to use, copy, modify, merge, publish,
#     distribute, sublicense, and/or sell copies of the Software, and to
#     permit persons to whom the Software is furnished to do so, subject to
#     the following conditions:
#
#     The above copyright notice and this permission notice shall be included
#     in all copies or substantial portions of the Software.
#
#     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
#     OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
#     MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
#     IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
#     CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
#     TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
#     SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
# }}}
#=============================================================================

import neovim
import re
import traceback

import deoplete
from deoplete.deoplete import Deoplete
from deoplete.util import get_buffer_config

@neovim.plugin
class DeopleteHandlers(object):
    def __init__(self, vim):
        self.vim = vim

    def debug(self, msg):
        self.vim.command('echomsg string("' + str(msg) + '")')

    def error(self, e):
        tmp = self.vim.eval('tempname()')
        with open(tmp, 'w') as f:
            traceback.print_exc(None, f)
        self.vim.command('call deoplete#util#print_error(' \
                         + '"The error is occurred.  Please read ".'
                         + 'string("'+tmp+'")." file.")')

    @neovim.command('DeopleteInitializePython', sync=True, nargs=0)
    def init_python(self):
        self.deoplete = Deoplete(self.vim)
        self.vim.command('let g:deoplete#_channel_id = '
        + str(self.vim.channel_id))

    @neovim.rpc_export('completion_begin')
    def completion_begin(self, context):
        # Encoding conversion
        encoding = self.vim.eval('&encoding')
        context = { k.decode(encoding) :
                    (v.decode(encoding) if isinstance(v, bytes) else v)
                    for k, v in context.items()}

        # Call omni completion
        omni_pattern = get_buffer_config(self.vim, context,
                                         'b:deoplete#omni_pattern',
                                         'g:deoplete#omni_patterns',
                                         'g:deoplete#_omni_patterns')
        # self.debug(omni_pattern)
        if omni_pattern != '' \
                and self.vim.eval('&l:omnifunc') != '' \
                and re.search('('+omni_pattern+')$', context['input']) \
                and self.vim.eval('mode()') == 'i':
            self.vim.command(
                'call feedkeys("\<C-x>\<C-o>", "n")')

        try:
            candidates = self.deoplete.gather_candidates(context)
        except Exception as e:
            self.error(e)
            candidates = []
        if not candidates or self.vim.eval('mode()') != 'i':
                return
        self.vim.command(
          'let g:deoplete#_context = {}')
        self.vim.command(
          'let g:deoplete#_context.complete_position = 0')
        self.vim.command(
          'let g:deoplete#_context.changedtick = '
            + str(context['changedtick']))
        self.vim.command(
          'let g:deoplete#_context.candidates = ' + str(candidates))
        self.vim.command(
          'call feedkeys("\<Plug>(deoplete_start_complete)")')

util.py

#=============================================================================
# FILE: util.py
# AUTHOR: Shougo Matsushita <Shougo.Matsu at gmail.com>
# License: MIT license  {{{
#     Permission is hereby granted, free of charge, to any person obtaining
#     a copy of this software and associated documentation files (the
#     "Software"), to deal in the Software without restriction, including
#     without limitation the rights to use, copy, modify, merge, publish,
#     distribute, sublicense, and/or sell copies of the Software, and to
#     permit persons to whom the Software is furnished to do so, subject to
#     the following conditions:
#
#     The above copyright notice and this permission notice shall be included
#     in all copies or substantial portions of the Software.
#
#     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
#     OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
#     MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
#     IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
#     CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
#     TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
#     SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
# }}}
#=============================================================================

def get_buffer_config(vim, context, buffer_var, user_var, default_var):
    return vim.eval('deoplete#util#get_buffer_config("{0}", "{1}", {2}, {3})'\
             .format(context['filetype'],
                     buffer_var, user_var, default_var))

util.vim

"=============================================================================
" FILE: util.vim
" AUTHOR: Shougo Matsushita <Shougo.Matsu at gmail.com>
" License: MIT license  {{{
"     Permission is hereby granted, free of charge, to any person obtaining
"     a copy of this software and associated documentation files (the
"     "Software"), to deal in the Software without restriction, including
"     without limitation the rights to use, copy, modify, merge, publish,
"     distribute, sublicense, and/or sell copies of the Software, and to
"     permit persons to whom the Software is furnished to do so, subject to
"     the following conditions:
"
"     The above copyright notice and this permission notice shall be included
"     in all copies or substantial portions of the Software.
"
"     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
"     OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
"     MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
"     IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
"     CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
"     TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
"     SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
" }}}
"=============================================================================

function! deoplete#util#set_default(var, val, ...)  "{{{
  if !exists(a:var) || type({a:var}) != type(a:val)
    let alternate_var = get(a:000, 0, '')

    let {a:var} = exists(alternate_var) ?
          \ {alternate_var} : a:val
  endif
endfunction"}}}
function! deoplete#util#set_pattern(variable, keys, pattern) "{{{
  for key in split(a:keys, '\s*,\s*')
    if !has_key(a:variable, key)
      let a:variable[key] = a:pattern
    endif
  endfor
endfunction"}}}
function! deoplete#util#get_buffer_config(filetype, buffer_var, user_var, default_var) "{{{
  return exists(a:buffer_var) ? a:buffer_var :
        \ get(a:user_var, a:filetype, get(a:default_var, a:filetype, ''))
endfunction"}}}
function! deoplete#util#print_error(string) "{{{
  echohl Error | echomsg '[deoplete] ' . a:string | echohl None
endfunction"}}}
function! deoplete#util#print_warning(string) "{{{
  echohl WarningMsg | echomsg '[deoplete] ' . a:string | echohl None
endfunction"}}}

function! deoplete#util#convert2list(expr) "{{{
  return type(a:expr) ==# type([]) ? a:expr : [a:expr]
endfunction"}}}

" vim: foldmethod=marker