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supertab.vim
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supertab.vim
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" Author:
" Original: Gergely Kontra <kgergely@mcl.hu>
" Current: Eric Van Dewoestine <ervandew@gmail.com> (as of version 0.4)
" Please direct all correspondence to Eric.
" Version: 1.1
" GetLatestVimScripts: 1643 1 :AutoInstall: supertab.vim
"
" Description: {{{
" Use your tab key to do all your completion in insert mode!
" You can cycle forward and backward with the <Tab> and <S-Tab> keys
" Note: you must press <Tab> once to be able to cycle back
"
" http://www.vim.org/scripts/script.php?script_id=1643
" }}}
"
" License: {{{
" Copyright (c) 2002 - 2010
" All rights reserved.
"
" Redistribution and use of this software in source and binary forms, with
" or without modification, are permitted provided that the following
" conditions are met:
"
" * Redistributions of source code must retain the above
" copyright notice, this list of conditions and the
" following disclaimer.
"
" * Redistributions in binary form must reproduce the above
" copyright notice, this list of conditions and the
" following disclaimer in the documentation and/or other
" materials provided with the distribution.
"
" * Neither the name of Gergely Kontra or Eric Van Dewoestine nor the names
" of its contributors may be used to endorse or promote products derived
" from this software without specific prior written permission of Gergely
" Kontra or Eric Van Dewoestine.
"
" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
" IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
" THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
" CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
" EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
" PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
" PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
" LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
" NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
" SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
" }}}
"
" Testing Info: {{{
" Running vim + supertab with the absolute bar minimum settings:
" $ vim -u NONE -U NONE -c "set nocp | runtime plugin/supertab.vim"
" }}}
if v:version < 700
finish
endif
if exists('complType') " Integration with other completion functions.
finish
endif
let s:save_cpo=&cpo
set cpo&vim
" Global Variables {{{
if !exists("g:SuperTabDefaultCompletionType")
let g:SuperTabDefaultCompletionType = "<c-p>"
endif
if !exists("g:SuperTabContextDefaultCompletionType")
let g:SuperTabContextDefaultCompletionType = "<c-p>"
endif
if !exists("g:SuperTabCompletionContexts")
let g:SuperTabCompletionContexts = ['s:ContextText']
endif
if !exists("g:SuperTabRetainCompletionDuration")
let g:SuperTabRetainCompletionDuration = 'insert'
endif
if !exists("g:SuperTabMidWordCompletion")
let g:SuperTabMidWordCompletion = 1
endif
if !exists("g:SuperTabMappingForward")
let g:SuperTabMappingForward = '<tab>'
endif
if !exists("g:SuperTabMappingBackward")
let g:SuperTabMappingBackward = '<s-tab>'
endif
if !exists("g:SuperTabMappingTabLiteral")
let g:SuperTabMappingTabLiteral = '<c-tab>'
endif
if !exists("g:SuperTabLongestEnhanced")
let g:SuperTabLongestEnhanced = 0
endif
if !exists("g:SuperTabLongestHighlight")
let g:SuperTabLongestHighlight = 0
endif
if !exists("g:SuperTabCrMapping")
let g:SuperTabCrMapping = 1
endif
" }}}
" Script Variables {{{
" construct the help text.
let s:tabHelp =
\ "Hit <CR> or CTRL-] on the completion type you wish to switch to.\n" .
\ "Use :help ins-completion for more information.\n" .
\ "\n" .
\ "|<c-n>| - Keywords in 'complete' searching down.\n" .
\ "|<c-p>| - Keywords in 'complete' searching up (SuperTab default).\n" .
\ "|<c-x><c-l>| - Whole lines.\n" .
\ "|<c-x><c-n>| - Keywords in current file.\n" .
\ "|<c-x><c-k>| - Keywords in 'dictionary'.\n" .
\ "|<c-x><c-t>| - Keywords in 'thesaurus', thesaurus-style.\n" .
\ "|<c-x><c-i>| - Keywords in the current and included files.\n" .
\ "|<c-x><c-]>| - Tags.\n" .
\ "|<c-x><c-f>| - File names.\n" .
\ "|<c-x><c-d>| - Definitions or macros.\n" .
\ "|<c-x><c-v>| - Vim command-line.\n" .
\ "|<c-x><c-u>| - User defined completion.\n" .
\ "|<c-x><c-o>| - Omni completion.\n" .
\ "|<c-x>s| - Spelling suggestions."
" set the available completion types and modes.
let s:types =
\ "\<c-e>\<c-y>\<c-l>\<c-n>\<c-k>\<c-t>\<c-i>\<c-]>" .
\ "\<c-f>\<c-d>\<c-v>\<c-n>\<c-p>\<c-u>\<c-o>\<c-n>\<c-p>s"
let s:modes = '/^E/^Y/^L/^N/^K/^T/^I/^]/^F/^D/^V/^P/^U/^O/s'
let s:types = s:types . "np"
let s:modes = s:modes . '/n/p'
" }}}
" SuperTabSetDefaultCompletionType(type) {{{
" Globally available function that users can use to set the default
" completion type for the current buffer, like in an ftplugin.
function! SuperTabSetDefaultCompletionType(type)
" init hack for <c-x><c-v> workaround.
let b:complCommandLine = 0
let b:SuperTabDefaultCompletionType = a:type
" set the current completion type to the default
call SuperTabSetCompletionType(b:SuperTabDefaultCompletionType)
endfunction " }}}
" SuperTabSetCompletionType(type) {{{
" Globally available function that users can use to create mappings to quickly
" switch completion modes. Useful when a user wants to restore the default or
" switch to another mode without having to kick off a completion of that type
" or use SuperTabHelp. Note, this function only changes the current
" completion type, not the default, meaning that the default will still be
" restored once the configured retension duration has been met (see
" g:SuperTabRetainCompletionDuration). To change the default for the current
" buffer, use SuperTabDefaultCompletionType(type) instead. Example mapping to
" restore SuperTab default:
" nmap <F6> :call SetSuperTabCompletionType("<c-p>")<cr>
function! SuperTabSetCompletionType(type)
exec "let b:complType = \"" . escape(a:type, '<') . "\""
endfunction " }}}
" SuperTabAlternateCompletion(type) {{{
" Function which can be mapped to a key to kick off an alternate completion
" other than the default. For instance, if you have 'context' as the default
" and want to map ctrl+space to issue keyword completion.
" Note: due to the way vim expands ctrl characters in mappings, you cannot
" create the alternate mapping like so:
" imap <c-space> <c-r>=SuperTabAlternateCompletion("<c-p>")<cr>
" instead, you have to use \<lt> to prevent vim from expanding the key
" when creating the mapping.
" gvim:
" imap <c-space> <c-r>=SuperTabAlternateCompletion("\<lt>c-p>")<cr>
" console:
" imap <nul> <c-r>=SuperTabAlternateCompletion("\<lt>c-p>")<cr>
function! SuperTabAlternateCompletion(type)
call SuperTabSetCompletionType(a:type)
" end any current completion before attempting to start the new one.
" use feedkeys to prevent possible remapping of <c-e> from causing issues.
"call feedkeys("\<c-e>", 'n')
" ^ since we can't detect completion mode vs regular insert mode, we force
" vim into keyword completion mode and end that mode to prevent the regular
" insert behavior of <c-e> from occurring.
call feedkeys("\<c-x>\<c-p>\<c-e>", 'n')
call feedkeys(b:complType)
return ''
endfunction " }}}
" s:Init {{{
" Global initilization when supertab is loaded.
function! s:Init()
augroup supertab_init
autocmd!
autocmd BufEnter * call <SID>InitBuffer()
augroup END
" ensure InitBuffer gets called for the first buffer, after the ftplugins
" have been called.
augroup supertab_init_first
autocmd!
autocmd FileType <buffer> call <SID>InitBuffer()
augroup END
" Setup mechanism to restore orignial completion type upon leaving insert
" mode if configured to do so
if g:SuperTabRetainCompletionDuration == 'insert'
augroup supertab_retain
autocmd!
autocmd InsertLeave * call s:SetDefaultCompletionType()
augroup END
endif
endfunction " }}}
" s:InitBuffer {{{
" Per buffer initilization.
function! s:InitBuffer()
if exists('b:complType')
return
endif
let b:complReset = 0
let b:complTypeContext = ''
let b:capturing = 0
" init hack for <c-x><c-v> workaround.
let b:complCommandLine = 0
let b:SuperTabDefaultCompletionType = g:SuperTabDefaultCompletionType
" set the current completion type to the default
call SuperTabSetCompletionType(b:SuperTabDefaultCompletionType)
endfunction " }}}
" s:ManualCompletionEnter() {{{
" Handles manual entrance into completion mode.
function! s:ManualCompletionEnter()
if &smd
echo '' | echohl ModeMsg | echo '-- ^X++ mode (' . s:modes . ')' | echohl None
endif
let complType = nr2char(getchar())
if stridx(s:types, complType) != -1
if stridx("\<c-e>\<c-y>", complType) != -1 " no memory, just scroll...
return "\<c-x>" . complType
elseif stridx('np', complType) != -1
let complType = nr2char(char2nr(complType) - 96)
else
let complType = "\<c-x>" . complType
endif
if index(['insert', 'session'], g:SuperTabRetainCompletionDuration) != -1
let b:complType = complType
endif
" Hack to workaround bug when invoking command line completion via <c-r>=
if complType == "\<c-x>\<c-v>"
return s:CommandLineCompletion()
endif
" optionally enable enhanced longest completion
if g:SuperTabLongestEnhanced && &completeopt =~ 'longest'
call s:EnableLongestEnhancement()
endif
return complType
endif
echohl "Unknown mode"
return complType
endfunction " }}}
" s:SetCompletionType() {{{
" Sets the completion type based on what the user has chosen from the help
" buffer.
function! s:SetCompletionType()
let chosen = substitute(getline('.'), '.*|\(.*\)|.*', '\1', '')
if chosen != getline('.')
let winnr = b:winnr
close
exec winnr . 'winc w'
call SuperTabSetCompletionType(chosen)
endif
endfunction " }}}
" s:SetDefaultCompletionType() {{{
function! s:SetDefaultCompletionType()
if exists('b:SuperTabDefaultCompletionType') &&
\ (!exists('b:complCommandLine') || !b:complCommandLine)
call SuperTabSetCompletionType(b:SuperTabDefaultCompletionType)
endif
endfunction " }}}
" s:SuperTab(command) {{{
" Used to perform proper cycle navigation as the user requests the next or
" previous entry in a completion list, and determines whether or not to simply
" retain the normal usage of <tab> based on the cursor position.
function! s:SuperTab(command)
if s:WillComplete()
" rare case where no autocmds have fired for this buffer to initialize the
" supertab vars.
call s:InitBuffer()
" optionally enable enhanced longest completion
if g:SuperTabLongestEnhanced && &completeopt =~ 'longest'
call s:EnableLongestEnhancement()
endif
" highlight first result if longest enabled
if g:SuperTabLongestHighlight && !pumvisible() && &completeopt =~ 'longest'
let key = (b:complType == "\<c-p>") ? b:complType : "\<c-n>"
call feedkeys(key)
endif
" exception: if in <c-p> mode, then <c-n> should move up the list, and
" <c-p> down the list.
if a:command == 'p' && !b:complReset &&
\ (b:complType == "\<c-p>" ||
\ (b:complType == 'context' &&
\ tolower(g:SuperTabContextDefaultCompletionType) == '<c-p>'))
return "\<c-n>"
elseif a:command == 'p' && !b:complReset &&
\ (b:complType == "\<c-n>" ||
\ (b:complType == 'context' &&
\ tolower(g:SuperTabContextDefaultCompletionType) == '<c-n>'))
return "\<c-p>"
" this used to handle call from captured keys with the longest enhancement
" enabled, but also must work when the enhancement is disabled.
elseif a:command == 'n' && pumvisible() && !b:complReset
if b:complType == 'context'
exec "let contextDefault = \"" .
\ escape(g:SuperTabContextDefaultCompletionType, '<') . "\""
" if we are in another completion mode, just scroll to the next
" completion
if b:complTypeContext != contextDefault
return "\<c-n>"
endif
return contextDefault
endif
return b:complType == "\<c-p>" ? b:complType : "\<c-n>"
endif
" handle 'context' completion.
if b:complType == 'context'
let complType = s:ContextCompletion()
if complType == ''
exec "let complType = \"" .
\ escape(g:SuperTabContextDefaultCompletionType, '<') . "\""
endif
let b:complTypeContext = complType
" Hack to workaround bug when invoking command line completion via <c-r>=
elseif b:complType == "\<c-x>\<c-v>"
let complType = s:CommandLineCompletion()
else
let complType = b:complType
endif
if b:complReset
let b:complReset = 0
return "\<c-e>" . complType
endif
return complType
endif
return "\<tab>"
endfunction " }}}
" s:SuperTabHelp() {{{
" Opens a help window where the user can choose a completion type to enter.
function! s:SuperTabHelp()
let winnr = winnr()
if bufwinnr("SuperTabHelp") == -1
botright split SuperTabHelp
setlocal noswapfile
setlocal buftype=nowrite
setlocal bufhidden=delete
let saved = @"
let @" = s:tabHelp
silent put
call cursor(1, 1)
silent 1,delete
call cursor(4, 1)
let @" = saved
exec "resize " . line('$')
syntax match Special "|.\{-}|"
setlocal readonly
setlocal nomodifiable
nmap <silent> <buffer> <cr> :call <SID>SetCompletionType()<cr>
nmap <silent> <buffer> <c-]> :call <SID>SetCompletionType()<cr>
else
exec bufwinnr("SuperTabHelp") . "winc w"
endif
let b:winnr = winnr
endfunction " }}}
" s:WillComplete() {{{
" Determines if completion should be kicked off at the current location.
function! s:WillComplete()
let line = getline('.')
let cnum = col('.')
" Start of line.
if line =~ '^\s*\%' . cnum . 'c'
return 0
endif
" Within a word, but user does not have mid word completion enabled.
let next_char = strpart(line, cnum - 1, 1)
if !g:SuperTabMidWordCompletion && next_char =~ '\k'
return 0
endif
" In keyword completion mode and no preceding word characters.
"if (b:complType == "\<c-n>" || b:complType == "\<c-p>") && prev_char !~ '\k'
" return 0
"endif
return 1
endfunction " }}}
" s:EnableLongestEnhancement() {{{
function! s:EnableLongestEnhancement()
augroup supertab_reset
autocmd!
autocmd InsertLeave,CursorMovedI <buffer>
\ call s:ReleaseKeyPresses() | autocmd! supertab_reset
call s:CaptureKeyPresses()
augroup END
endfunction " }}}
" s:CompletionReset() {{{
function! s:CompletionReset(char)
let b:complReset = 1
return a:char
endfunction " }}}
" s:CaptureKeyPresses() {{{
function! s:CaptureKeyPresses()
if !b:capturing
let b:capturing = 1
" TODO: use &keyword to get an accurate list of chars to map
for c in split('abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890_', '.\zs')
exec 'imap <buffer> ' . c . ' <c-r>=<SID>CompletionReset("' . c . '")<cr>'
endfor
imap <buffer> <bs> <c-r>=<SID>CompletionReset("\<lt>c-h>")<cr>
imap <buffer> <c-h> <c-r>=<SID>CompletionReset("\<lt>c-h>")<cr>
exec 'imap <buffer> ' . g:SuperTabMappingForward . ' <c-r>=<SID>SuperTab("n")<cr>'
endif
endfunction " }}}
" s:ReleaseKeyPresses() {{{
function! s:ReleaseKeyPresses()
if b:capturing
let b:capturing = 0
for c in split('abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890_', '.\zs')
exec 'iunmap <buffer> ' . c
endfor
iunmap <buffer> <bs>
iunmap <buffer> <c-h>
exec 'iunmap <buffer> ' . g:SuperTabMappingForward
if mode() == 'i'
" force full exit from completion mode (don't exit insert mode since
" that will break repeating with '.')
call feedkeys("\<space>\<bs>", 'n')
endif
endif
endfunction " }}}
" s:CommandLineCompletion() {{{
" Hack needed to account for apparent bug in vim command line mode completion
" when invoked via <c-r>=
function! s:CommandLineCompletion()
" This hack will trigger InsertLeave which will then invoke
" s:SetDefaultCompletionType. To prevent default completion from being
" restored prematurely, set an internal flag for s:SetDefaultCompletionType
" to check for.
let b:complCommandLine = 1
return "\<c-\>\<c-o>:call feedkeys('\<c-x>\<c-v>\<c-v>', 'n') | " .
\ "let b:complCommandLine = 0\<cr>"
endfunction " }}}
" s:ContextCompletion() {{{
function! s:ContextCompletion()
let contexts = exists('b:SuperTabCompletionContexts') ?
\ b:SuperTabCompletionContexts : g:SuperTabCompletionContexts
for context in contexts
try
let Context = function(context)
let complType = Context()
unlet Context
if type(complType) == 1 && complType != ''
return complType
endif
catch /E700/
echohl Error
echom 'supertab: no context function "' . context . '" found.'
echohl None
endtry
endfor
return ''
endfunction " }}}
" s:ContextDiscover() {{{
function! s:ContextDiscover()
let discovery = exists('g:SuperTabContextDiscoverDiscovery') ?
\ g:SuperTabContextDiscoverDiscovery : []
" loop through discovery list to find the default
if !empty(discovery)
for pair in discovery
let var = substitute(pair, '\(.*\):.*', '\1', '')
let type = substitute(pair, '.*:\(.*\)', '\1', '')
exec 'let value = ' . var
if value !~ '^\s*$' && value != '0'
exec "let complType = \"" . escape(type, '<') . "\""
return complType
endif
endfor
endif
endfunction " }}}
" s:ContextText() {{{
function! s:ContextText()
let exclusions = exists('g:SuperTabContextTextFileTypeExclusions') ?
\ g:SuperTabContextTextFileTypeExclusions : []
if index(exclusions, &ft) == -1
let curline = getline('.')
let cnum = col('.')
let synname = synIDattr(synID(line('.'), cnum - 1, 1), 'name')
if curline =~ '.*/\w*\%' . cnum . 'c' ||
\ ((has('win32') || has('win64')) && curline =~ '.*\\\w*\%' . cnum . 'c')
return "\<c-x>\<c-f>"
elseif curline =~ '.*\(\w\|[\])]\)\(\.\|::\|->\)\w*\%' . cnum . 'c' &&
\ synname !~ '\(String\|Comment\)'
let omniPrecedence = exists('g:SuperTabContextTextOmniPrecedence') ?
\ g:SuperTabContextTextOmniPrecedence : ['&completefunc', '&omnifunc']
for omniFunc in omniPrecedence
if omniFunc !~ '^&'
let omniFunc = '&' . omniFunc
endif
if getbufvar(bufnr('%'), omniFunc) != ''
return omniFunc == '&omnifunc' ? "\<c-x>\<c-o>" : "\<c-x>\<c-u>"
endif
endfor
endif
endif
endfunction " }}}
" Key Mappings {{{
" map a regular tab to ctrl-tab (note: doesn't work in console vim)
exec 'inoremap ' . g:SuperTabMappingTabLiteral . ' <tab>'
imap <c-x> <c-r>=<SID>ManualCompletionEnter()<cr>
" From the doc |insert.txt| improved
exec 'imap ' . g:SuperTabMappingForward . ' <c-n>'
exec 'imap ' . g:SuperTabMappingBackward . ' <c-p>'
" After hitting <Tab>, hitting it once more will go to next match
" (because in XIM mode <c-n> and <c-p> mappings are ignored)
" and wont start a brand new completion
" The side effect, that in the beginning of line <c-n> and <c-p> inserts a
" <Tab>, but I hope it may not be a problem...
inoremap <c-n> <c-r>=<SID>SuperTab('n')<cr>
inoremap <c-p> <c-r>=<SID>SuperTab('p')<cr>
if g:SuperTabCrMapping
" using a <c-r> mapping instead of <expr>, seems to prevent evaluating
" other functions mapped to <cr> etc. (like endwise.vim)
inoremap <cr> <c-r>=<SID>SelectCompletion()<cr>
function s:SelectCompletion()
return pumvisible() ? "\<space>\<bs>" : "\<cr>"
endfunction
endif
" }}}
" Command Mappings {{{
if !exists(":SuperTabHelp")
command SuperTabHelp :call <SID>SuperTabHelp()
endif
" }}}
call s:Init()
let &cpo = s:save_cpo
" vim:ft=vim:fdm=marker