dotfiles/.vim/supertab.vim
michener 86cc58a3d4 Massive vim coolness
git-svn-id: http://photonzero.com/dotfiles/trunk@22 23f722f6-122a-0410-8cef-c75bd312dd78
2008-06-21 00:48:56 +00:00

463 lines
15 KiB
VimL

" Author:
" Original: Gergely Kontra <kgergely@mcl.hu>
" Current: Eric Van Dewoestine <ervandew@yahoo.com> (as of version 0.4)
" Please direct all correspondence to Eric.
" Version: 0.45
"
" 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
" (<S-Tab> will not work in the console version)
" Note: you must press <Tab> once to be able to cycle back
"
" http://www.vim.org/scripts/script.php?script_id=1643
" }}}
"
" License: {{{
" Software License Agreement (BSD License)
"
" Copyright (c) 2002 - 2007
" 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.
" }}}
if exists('complType') "Integration with other completion functions.
finish
endif
" Global Variables {{{
" Used to set the default completion type.
" There is no need to escape this value as that will be done for you when
" the type is set.
" Ex. let g:SuperTabDefaultCompletionType = "<C-X><C-U>"
if !exists("g:SuperTabDefaultCompletionType")
let g:SuperTabDefaultCompletionType = "<C-P>"
endif
" Used to set a list of variable, completion type pairs used to determine
" the default completion type to use for the current buffer. If the
" variable is non-zero and non-empty then the associated completion type
" will be used.
" Ex. To use omni or user completion when available, but fall back to the
" global default otherwise.
" let g:SuperTabDefaultCompletionTypeDiscovery = "&omnifunc:<C-X><C-O>,&completefunc:<C-X><C-U>"
if !exists("g:SuperTabDefaultCompletionTypeDiscovery")
let g:SuperTabDefaultCompletionTypeDiscovery = ""
endif
" Determines if, and for how long, the current completion type is retained.
" The possible values include:
" 0 - The current completion type is only retained for the current completion.
" Once you have chosen a completion result or exited the completion
" mode, the default completion type is restored.
" 1 - The current completion type is saved for the duration of your vim
" session or until you enter a different completion mode.
" (SuperTab default).
" 2 - The current completion type is saved until you exit insert mode (via
" ESC). Once you exit insert mode the default completion type is
" restored.
if !exists("g:SuperTabRetainCompletionType")
let g:SuperTabRetainCompletionType = 1
endif
" Sets whether or not mid word completion is enabled.
" When enabled, <tab> will kick off completion when ever a word character is
" to the left of the cursor. When disabled, completion will only occur if
" the char to the left is a word char and the char to the right is not (you
" are at the end of the word).
if !exists("g:SuperTabMidWordCompletion")
let g:SuperTabMidWordCompletion = 1
endif
" The following two variables allow you to set the key mapping used to kick
" off the current completion. By default this is <tab> and <s-tab>. To
" change to something like <c-space> and <s-c-space>, you can add the
" following to your vimrc.
"
" let g:SuperTabMappingForward = '<c-space>'
" let g:SuperTabMappingBackward = '<s-c-space>'
"
" Note: if the above does not have the desired effect (which may happen in
" console version of vim), you can try the following mappings. Although the
" backwards mapping still doesn't seem to work in the console for me, your
" milage may vary.
"
" let g:SuperTabMappingForward = '<nul>'
" let g:SuperTabMappingBackward = '<s-nul>'
"
if !exists("g:SuperTabMappingForward")
let g:SuperTabMappingForward = '<tab>'
endif
if !exists("g:SuperTabMappingBackward")
let g:SuperTabMappingBackward = '<s-tab>'
endif
" Sets whether or not to pre-highlight first match when completeopt has
" the popup menu enabled and the 'longest' option as well.
" When enabled, <tab> will kick off completion and pre-select the first
" entry in the popup menu, allowing you to simply hit <enter> to use it.
if !exists("g:SuperTabLongestHighlight")
let g:SuperTabLongestHighlight = 0
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."
if v:version >= 700
let s:tabHelp = s:tabHelp . "\n" .
\ "|<C-X><C-U>| - User defined completion.\n" .
\ "|<C-X><C-O>| - Omni completion.\n" .
\ "|<C-X>s| - Spelling suggestions."
endif
" 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>"
let s:modes = '/^E/^Y/^L/^N/^K/^T/^I/^]/^F/^D/^V/^P'
if v:version >= 700
let s:types = s:types . "\<C-U>\<C-O>\<C-N>\<C-P>s"
let s:modes = s:modes . '/^U/^O/s'
endif
let s:types = s:types . "np"
let s:modes = s:modes . '/n/p'
" }}}
" CtrlXPP() {{{
" Handles entrance into completion mode.
function! CtrlXPP()
if &smd
echo '' | echo '-- ^X++ mode (' . s:modes . ')'
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) " char2nr('n')-char2nr("\<C-n")
else
let complType="\<C-x>" . complType
endif
if g:SuperTabRetainCompletionType
let b:complType = complType
endif
return complType
else
echohl "Unknown mode"
return complType
endif
endfunction " }}}
" SuperTabSetCompletionType(type) {{{
" Globally available function that user's 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.
" Example mapping to restore SuperTab default:
" nmap <F6> :call SetSuperTabCompletionType("<C-P>")<cr>
function! SuperTabSetCompletionType (type)
exec "let b:complType = \"" . escape(a:type, '<') . "\""
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.
call s:InitBuffer()
" Setup mechanism to restore orignial completion type upon leaving insert
" mode if g:SuperTabRetainCompletionType == 2
if g:SuperTabRetainCompletionType == 2
" pre vim 7, must map <esc>
if v:version < 700
im <silent> <ESC> <ESC>:call s:SetDefaultCompletionType()<cr>
" since vim 7, we can use InsertLeave autocmd.
else
augroup supertab_retain
autocmd!
autocmd InsertLeave * call s:SetDefaultCompletionType()
augroup END
endif
endif
endfunction " }}}
" s:InitBuffer {{{
" Per buffer initilization.
function! s:InitBuffer ()
if exists("b:complType")
return
endif
if !exists("b:SuperTabDefaultCompletionType")
" loop through discovery list to find the default
if g:SuperTabDefaultCompletionTypeDiscovery != ''
let dlist = g:SuperTabDefaultCompletionTypeDiscovery
while dlist != ''
let pair = substitute(dlist, '\(.\{-}\)\(,.*\|$\)', '\1', '')
let dlist = substitute(dlist, '.\{-}\(,.*\|$\)', '\1', '')
let dlist = substitute(dlist, '^,', '\1', '')
let var = substitute(pair, '\(.*\):.*', '\1', '')
let type = substitute(pair, '.*:\(.*\)', '\1', '')
exec 'let value = ' . var
if value !~ '^\s*$' && value != '0'
let b:SuperTabDefaultCompletionType = type
break
endif
endwhile
endif
" fallback to configured default.
if !exists("b:SuperTabDefaultCompletionType")
let b:SuperTabDefaultCompletionType = g:SuperTabDefaultCompletionType
endif
endif
" set the default completion type.
call SuperTabSetCompletionType(b:SuperTabDefaultCompletionType)
endfunction " }}}
" s:IsWordChar(char) {{{
" Determines if the supplied character is a word character or matches value
" defined by 'iskeyword'.
function! s:IsWordChar (char)
if a:char =~ '\w'
return 1
endif
" check against 'iskeyword'
let values = &iskeyword
let index = stridx(values, ',')
while index > 0 || values != ''
if index > 0
let value = strpart(values, 0, index)
let values = strpart(values, index + 1)
else
let value = values
let values = ''
endif
" exception case for '^,'
if value == '^'
let value = '^,'
" execption case for ','
elseif value =~ '^,,'
let values .= strpart(value, 2)
let value = ','
" execption case after a ^,
elseif value =~ '^,'
let value = strpart(value, 1)
endif
" keyword values is an ascii number range
if value =~ '[0-9]\+-[0-9]\+'
let charnum = char2nr(a:char)
exec 'let start = ' . substitute(value, '\([0-9]\+\)-.*', '\1', '')
exec 'let end = ' . substitute(value, '.*-\([0-9]\+\)', '\1', '')
if charnum >= start && charnum <= end
return 1
endif
" keyword value is a set of include or exclude characters
else
let include = 1
if value =~ '^\^'
let value = strpart(value, 1)
let include = 0
endif
if a:char =~ '[' . escape(value, '[]') . ']'
return include
endif
endif
let index = stridx(values, ',')
endwhile
return 0
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')
call SuperTabSetCompletionType(b:SuperTabDefaultCompletionType)
endif
endfunction " }}}
" s:SuperTab(command) {{{
" Used to perform proper cycle navigtion 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()
let key = ''
" highlight first result if longest enabled
if g:SuperTabLongestHighlight && !pumvisible() && &completeopt =~ 'longest'
let key = (b:complType == "\<C-P>") ? "\<C-P>" : "\<C-N>"
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:complType == "\<C-P>"
return "\<C-N>"
endif
return b:complType . key
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('$')
syntax match Special "|.\{-}|"
setlocal readonly
setlocal nomodifiable
nmap <silent> <buffer> <cr> :call <SID>SetCompletionType()<cr>
nmap <silent> <buffer> <c-]> :call <SID>SetCompletionType()<cr>
else
exec bufwinnr("SuperTabHelp") . "winc w"
endif
let b:winnr = winnr
endfunction " }}}
" s:WillComplete () {{{
" Determines if completion should be kicked off at the current location.
function! s:WillComplete ()
let line = getline('.')
let cnum = col('.')
" Start of line.
let prev_char = strpart(line, cnum - 2, 1)
if prev_char =~ '^\s*$'
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 && s:IsWordChar(next_char)
return 0
endif
" In keyword completion mode and no preceding word characters.
"if (b:complType == "\<C-N>" || b:complType == "\<C-P>") && !s:IsWordChar(prev_char)
" return 0
"endif
return 1
endfunction " }}}
" Key Mappings {{{
im <C-X> <C-r>=CtrlXPP()<CR>
" From the doc |insert.txt| improved
exec 'im ' . g:SuperTabMappingForward . ' <C-n>'
exec 'im ' . 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...
ino <C-n> <C-R>=<SID>SuperTab('n')<CR>
ino <C-p> <C-R>=<SID>SuperTab('p')<CR>
" }}}
" Command Mappings {{{
if !exists(":SuperTabHelp")
command SuperTabHelp :call <SID>SuperTabHelp()
endif
" }}}
call <SID>Init()
" vim:ft=vim:fdm=marker