vim/auto-pairs
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Fix #44, compatible with old vim before 7.3.

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This commit is contained in:
Miao Jiang 2013-03-27 15:52:29 +08:00
parent 0a79f50acb
commit 24ffa783f0
1 changed files with 33 additions and 15 deletions
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46
plugin/auto-pairs.vim
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@ -442,10 +442,9 @@ function! AutoPairsInit()
endfunction
function! s:ExpandMap(map, sid)
function! s:ExpandMap(map)
let map = a:map
let map = substitute(map, '\(<Plug>\w\+\)', '\=maparg(submatch(1), "i")', 'g')
let map = substitute(map, '<SID>', '<SNR>' . a:sid . '_', 'g')
return map
endfunction
@ -468,23 +467,42 @@ function! AutoPairsTryInit()
" Buffer level keys mapping
" comptible with other plugin
if g:AutoPairsMapCR
if v:version >= 703
" VIM 7.3 supports advancer maparg which could get <expr> info
" then auto-pairs could remap <CR> in any case.
let info = maparg('<CR>', 'i', 0, 1)
if !empty(info)
let old_cr = info['rhs']
if old_cr !~ 'AutoPairsReturn'
let old_cr = s:ExpandMap(old_cr, info['sid'])
if info['expr']
" remap <expr> to `name` to avoid mix expr and non-expr mode
let name = '<SID>AutoPairsOldCRWrapper'
execute 'inoremap <buffer> <expr> <script> '. name . ' ' . old_cr
let old_cr = name
end
end
else
if empty(info)
let old_cr = '<CR>'
let is_expr = 0
else
let old_cr = info['rhs']
let old_cr = s:ExpandMap(old_cr)
let old_cr = substitute(old_cr, '<SID>', '<SNR>' . info['sid'] . '_', 'g')
let is_expr = 1
let wrapper_name = '<SID>AutoPairsOldCRWrapper73'
endif
else
" VIM version less than 7.3
" the mapping's <expr> info is lost, so guess it is expr or not, it's
" not accurate.
let old_cr = maparg('<CR>', 'i')
if old_cr == ''
let old_cr = '<CR>'
let is_expr = 0
else
let old_cr = s:ExpandMap(old_cr)
" old_cr contain (), I guess the old cr is in expr mode
let is_expr = old_cr =~ '\V()'
let wrapper_name = '<SID>AutoPairsOldCRWrapper'
end
end
if old_cr !~ 'AutoPairsReturn'
if is_expr
" remap <expr> to `name` to avoid mix expr and non-expr mode
execute 'inoremap <buffer> <expr> <script> '. wrapper_name . ' ' . old_cr
let old_cr = wrapper_name
end
" Alawys slient mapping
execute 'inoremap <script> <buffer> <silent> <CR> '.old_cr.'<SID>AutoPairsReturn'
end