mirror of
https://github.com/gryf/snipmate.vim.git
synced 2025-12-21 21:37:59 +01:00
567 lines
18 KiB
VimL
567 lines
18 KiB
VimL
" File: snipMate.vim
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" Author: Michael Sanders
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" Version: 0.71
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" Description: snipMate.vim implements some of TextMate's snippets features in
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" Vim. A snippet is a piece of often-typed text that you can
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" insert into your document using a trigger word followed by a "<tab>".
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"
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" For more help see snipMate.txt; you can do this by using:
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" :helptags ~/.vim/doc
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" :h snipMate.txt
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" Last Modified: February 26, 2009.
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if exists('loaded_snips') || &cp || version < 700
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finish
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endif
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let loaded_snips = 1
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if !exists('snips_author') | let snips_author = 'Me' | endif
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com! -nargs=+ -bang Snipp call s:MakeSnippet(<q-args>, &ft, <bang>0)
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com! -nargs=+ -bang GlobalSnip call s:MakeSnippet(<q-args>, '_', <bang>0)
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let s:snippets = {} | let s:multi_snips = {}
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fun! Filename(...)
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let filename = expand('%:t:r')
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if filename == '' | return a:0 == 2 ? a:2 : '' | endif
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return !a:0 || a:1 == '' ? filename : substitute(a:1, '$1', filename, 'g')
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endf
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" escapes special characters in snippet triggers
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fun s:Hash(text)
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return substitute(a:text, '\W', '\="_".char2nr(submatch(0))."_"', 'g')
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endf
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fun s:MakeSnippet(text, ft, multisnip)
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let space = stridx(a:text, ' ')
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let trigger = s:Hash(strpart(a:text, 0, space))
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if a:multisnip
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let space += 2
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let quote = stridx(a:text, '"', space)
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let name = strpart(a:text, space, quote-space)
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let space = stridx(a:text, ' ', quote)
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let var = 's:multi_snips'
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else
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let var = 's:snippets'
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endif
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if !has_key({var}, a:ft) | let {var}[a:ft] = {} | endif
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let end = strpart(a:text, space+1)
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if end == '' || space == '' || (a:multisnip && name == '')
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echom 'Error in snipMate.vim: Snippet '.a:text.' is undefined.'
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elseif !has_key({var}[a:ft], trigger)
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let {var}[a:ft][trigger] = a:multisnip ? [[name, end]] : end
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elseif a:multisnip | let {var}[a:ft][trigger] += [[name, end]]
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else
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echom 'Warning in snipMate.vim: Snippet '.strpart(a:text, 0, stridx(a:text, ' '))
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\ .' is already defined. See :h multi_snip for help on snippets'
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\ .' with multiple matches.'
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endif
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endf
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fun! ExtractSnips(dir, ft)
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let s:slash = has('win16') || has('win32') || has('win64') ? '\\' : '/'
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for path in split(globpath(a:dir, '*'), '\n')
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if isdirectory(path)
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for snipFile in split(globpath(path, '*.snippet'), '\n')
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call s:ProcessFile(snipFile, a:ft,
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\ strpart(path, strridx(path, s:slash)+1))
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endfor
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else
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call s:ProcessFile(path, a:ft)
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endif
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endfor
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unl s:slash
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let s:did_{a:ft} = 1
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endf
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" Processes a snippet file; optionally add the name of the parent directory
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" for a snippet with multiple matches.
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fun s:ProcessFile(file, ft, ...)
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let keyword = matchstr(a:file, '.*'.s:slash.'\zs.*\ze\.snippet')
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if keyword == '' | return | endif
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try
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let text = join(readfile(a:file), '\n')
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catch /E484/
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echom "Error in snipMate.vim: couldn't read file: ".a:file
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endtry
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return a:0 ? s:MakeSnippet(a:1.' "'.keyword.'" '.text, a:ft, 1)
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\ : s:MakeSnippet(keyword.' '.text, a:ft, 0)
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endf
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fun! ResetSnippets()
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let s:snippets = {} | let s:multi_snips = {}
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endf
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fun s:RemoveSnippet()
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unl s:snipPos s:curPos s:snipLen s:endSnip s:endSnipLine s:prevLen
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endf
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fun s:ChooseSnippet(ft, trigger)
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let snippet = []
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let i = 1
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for snip in s:multi_snips[a:ft][a:trigger]
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let snippet += [i.'. '.snip[0]]
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let i += 1
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endfor
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if i == 2 | return s:multi_snips[a:ft][a:trigger][0][1] | endif
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let num = inputlist(snippet)-1
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return num < i-1 ? s:multi_snips[a:ft][a:trigger][num][1] : ''
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endf
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fun! TriggerSnippet()
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if pumvisible() " update snippet if completion is used, or deal with supertab
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if exists('s:sid') | return "\<c-n>" | endif
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call feedkeys("\<esc>a", 'n') | call s:UpdateChangedSnip(0)
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endif
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if !exists('s:sid') && exists('g:SuperTabMappingForward')
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\ && g:SuperTabMappingForward == "<tab>"
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call s:GetSuperTabSID()
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endif
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let word = s:GetSnippet()
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" if word is a trigger for a snippet, delete the trigger & expand the snippet
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if exists('s:snippet')
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if s:snippet == '' " if user cancelled a multi snippet, quit
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return unl s:snippet
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endif
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let col = col('.')-len(word)
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sil exe 's/'.escape(word, '/\*[]').'\%#//'
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return s:ExpandSnippet(col)
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elseif exists('s:snipPos')
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return s:JumpTabStop()
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endif
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return exists('s:sid') ? {s:sid}_SuperTab('n') : "\<tab>"
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endf
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" Check if word under cursor is snippet trigger; if it isn't, try checking if
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" the text after non-word characters is (e.g. check for "foo" in "bar.foo")
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fun s:GetSnippet()
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let origWord = matchstr(getline('.'), '\S\+\%'.col('.').'c')
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wh !exists('s:snippet')
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let word = s:Hash(origWord)
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if exists('s:snippets["'.&ft.'"]["'.word.'"]')
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let s:snippet = s:snippets[&ft][word]
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elseif exists('s:snippets["_"]["'.word.'"]')
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let s:snippet = s:snippets['_'][word]
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elseif exists('s:multi_snips["'.&ft.'"]["'.word.'"]')
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let s:snippet = s:ChooseSnippet(&ft, word)
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elseif exists('s:multi_snips["_"]["'.word.'"]')
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let s:snippet = s:ChooseSnippet('_', word)
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else
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if match(origWord, '\W') == -1 | break | endif
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let origWord = substitute(origWord, '.\{-}\W', '', '')
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endif
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endw
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return origWord
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endf
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fun s:GetSuperTabSID()
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let old = @a
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redir @a | exe 'sil fun /SuperTab$' | redir END
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let s:sid = matchstr(@a, '<SNR>\d\+\ze_SuperTab(command)')
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let @a = old
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endf
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fun s:ExpandSnippet(col)
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let lnum = line('.') | let col = a:col
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let afterCursor = strpart(getline('.'), col-1)
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if afterCursor != "\t" && afterCursor != ' '
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sil exe 's/\%'.col.'c.*//'
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else | let afterCursor = '' | endif
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" for some reason the cursor needs to move one right after this
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let line = getline(lnum)
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if line != '' && col == 1 && afterCursor == '' && &ve !~ 'all\|onemore'
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let col += 1
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endif
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call s:ProcessSnippet()
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if s:snippet == ''
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return unl s:snippet " avoid an error if the snippet is now empty
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endif
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let snip = split(substitute(s:snippet, '$\d\|${\d.\{-}}', '', 'g'), "\n", 1)
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if afterCursor != '' | let snip[-1] .= afterCursor | endif
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call setline(lnum, line.snip[0])
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" autoindent snippet according to previous indentation
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let indent = matchend(line, '^.\{-}\ze\(\S\|$\)')+1
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call append(lnum, map(snip[1:], "'".strpart(line, 0, indent-1)."'.v:val"))
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let snipLen = s:BuildTabStops(lnum, col-indent, indent)
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unl s:snippet
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if snipLen
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if exists('s:snipLen')
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let s:snipLen += snipLen-1 | let s:curPos += 1
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else
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let s:snipLen = snipLen | let s:curPos = 0
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endif
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let s:endSnip = s:snipPos[s:curPos][1]
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let s:endSnipLine = s:snipPos[s:curPos][0]
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call cursor(s:snipPos[s:curPos][0], s:snipPos[s:curPos][1])
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let s:prevLen = [line('$'), col('$')]
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if s:snipPos[s:curPos][2] != -1 | return s:SelectWord() | endif
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else
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if !exists('s:snipLen') | unl s:snipPos | endif
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" place cursor at end of snippet if no tab stop is given
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let newlines = len(snip)-1
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call cursor(lnum + newlines, indent + len(snip[-1]) - len(afterCursor)
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\ + (newlines ? 0: col))
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endif
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return ''
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endf
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fun s:ProcessSnippet()
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" evaluate eval (`...`) expressions
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" Using a loop here instead of a regex fixes a bug with nested "\="
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if stridx(s:snippet, '`') != -1
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wh match(s:snippet, '`.\{-}`') != -1
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let s:snippet = substitute(s:snippet, '`.\{-}`',
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\ substitute(eval(matchstr(s:snippet, '`\zs.\{-}\ze`')),
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\ "\n\\%$", '', ''), '')
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endw
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let s:snippet = substitute(s:snippet, "\r", "\n", 'g')
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endif
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" place all text after a colon in a tab stop after the tab stop
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" (e.g. "${#:foo}" becomes "${:foo}foo")
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" this helps tell the position of the tab stops later.
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let s:snippet = substitute(s:snippet, '${\d:\(.\{-}\)}', '&\1', 'g')
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" update the s:snippet so that all the $# become
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" the text after the colon in their associated ${#}
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" (e.g. "${1:foo}" turns all "$1"'s into "foo")
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let i = 1
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wh stridx(s:snippet, '${'.i) != -1
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let s = matchstr(s:snippet, '${'.i.':\zs.\{-}\ze}')
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if s != ''
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let s:snippet = substitute(s:snippet, '$'.i, '&'.s, 'g')
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endif
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let i += 1
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endw
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if &et " expand tabs to spaces if 'expandtab' is set
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let s:snippet = substitute(s:snippet, '\t',
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\ repeat(' ', &sts ? &sts : &sw), 'g')
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endif
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endf
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fun s:Count(haystack, needle)
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let counter = 0
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let index = stridx(a:haystack, a:needle)
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wh index != -1
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let index = stridx(a:haystack, a:needle, index+1)
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let counter += 1
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endw
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return counter
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endf
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" Sorry, this next section is a bit convoluted...
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" This function builds a list of a list of each tab stop in the snippet
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" containing:
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" 1.) The number of the current line plus the number of "\n"s (line
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" breaks) before the tab stop
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" 2.) The current column plus the position of the next "${#}" on
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" the line by getting the length of the string between the last "\n"
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" and the "${#}" tab stop,
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" 3.) The length of the text after the colon for the current tab stop
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" (e.g. "${#:foo}" would returnrn 3). If there is no text, -1 is returnrned.
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" 4.) If the "${#:}" construct is given, the fourth part of the list
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" is another list containing all the matches of "$#", to be replaced
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" with the variable. This list is composed the same way as the parent:
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" the first part is the number of "\n"s before the tab stop, and
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" second is the position (column) of the "$#" tab stop on the line.
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" If there are none of these tab stop, an empty list ([]) is returnrned
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fun s:BuildTabStops(lnum, col, indent)
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let snipPos = [] | let i = 1
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" temporarily delete placeholders
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let cut_snip = substitute(s:snippet, '$\d', '', 'g')
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wh stridx(s:snippet, '${'.i) != -1
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let snipPos += [[a:lnum+s:Count(matchstr(cut_snip, '^.*\ze${'.i), "\n"),
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\ a:indent+len(matchstr(substitute(cut_snip, '${'.i.'\@!\d.\{-}}', '', 'g'),
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\ "^.*\\(\n\\|^\\)\\zs.*\\ze${".i.'.\{-}}')), -1]]
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if snipPos[i-1][0] == a:lnum
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let snipPos[i-1][1] += a:col
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endif
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" get all $# matches in another list, if ${#:name} is given
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if stridx(cut_snip, '${'.i.':') != -1
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let j = i-1
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let snipPos[j][2] = len(matchstr(cut_snip, '${'.i.':\zs.\{-}\ze}'))
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let snipPos[j] += [[]]
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" temporarily delete all other tab stops/placeholders
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let tempstr = substitute(s:snippet, '$'.i.'\@!\d\|${\d.\{-}}', '', 'g')
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wh stridx(tempstr, '$'.i) != -1
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let beforeMark = matchstr(tempstr, '^.\{-}\ze$'.i)
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let linecount = a:lnum+s:Count(beforeMark, "\n")
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let snipPos[j][3] += [[linecount,
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\ a:indent+(linecount > a:lnum ?
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\ len(matchstr(beforeMark, "^.*\n\\zs.*"))
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\ : a:col+len(beforeMark))]]
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let tempstr = substitute(tempstr, '$'.i, '', '')
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endw
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endif
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let i += 1
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endw
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if exists('s:snipPos') " allow nested snippets
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let s:snipPos = extend(s:snipPos, snipPos, s:curPos+1)
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else
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let s:snipPos = snipPos
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endif
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return i-1
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endf
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fun s:JumpTabStop()
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if exists('s:update')
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call s:UpdatePlaceholderTabStops()
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let changeLine = 0 | let changeCol = 0
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else
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let changeLine = s:endSnipLine - s:snipPos[s:curPos][0]
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let changeCol = s:endSnip - s:snipPos[s:curPos][1]
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if exists('s:origWordLen')
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let changeCol -= s:origWordLen
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unl s:origWordLen
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endif
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endif
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let s:curPos += 1
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if s:curPos == s:snipLen
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let sMode = s:endSnip == s:snipPos[s:curPos-1][1]+s:snipPos[s:curPos-1][2]
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call s:RemoveSnippet()
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return sMode ? "\<tab>" : TriggerSnippet()
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endif
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call s:UpdateTabStops(changeLine, changeCol)
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call cursor(s:snipPos[s:curPos][0], s:snipPos[s:curPos][1])
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let s:endSnipLine = s:snipPos[s:curPos][0]
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let s:endSnip = s:snipPos[s:curPos][1]
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let s:prevLen = [line('$'), col('$')]
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return s:snipPos[s:curPos][2] == -1 ? '' : s:SelectWord()
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endf
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fun s:UpdatePlaceholderTabStops()
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" update tab stops in snippet if text has been added via "$#",
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" e.g. in "${1:foo}bar$1${2}"
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if exists('s:origPos')
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let changeLen = s:origWordLen - s:snipPos[s:curPos][2]
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" This could probably be more efficent...
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if changeLen != 0
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let lnum = line('.')
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let len = len(s:origPos)
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for pos in s:snipPos[(s:curPos+1):]
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let i = 0 | let j = 0 | let k = 0
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let endSnip = pos[2]+pos[1]-1
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wh i < len && s:origPos[i][0] <= pos[0]
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if pos[0] == s:origPos[i][0]
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if pos[1] > s:origPos[i][1]
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\ || (pos[2] == -1 && pos[1] == s:origPos[i][1])
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let j += 1
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elseif s:origPos[i][1] < endSnip " parse variables within placeholders
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let k += 1
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endif
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endif
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let i += 1
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endw
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if pos[0] == lnum && pos[1] > s:origSnipPos
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let j += 1
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endif
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let pos[1] -= changeLen*j
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let pos[2] -= changeLen*k
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if pos[2] != -1
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for nPos in pos[3]
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let i = 0 | let j = 0
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wh i < len && s:origPos[i][0] <= nPos[0]
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if nPos[0] == s:origPos[i][0] && nPos[1] > s:origPos[i][1]
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let j += 1
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endif
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let i += 1
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endw
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if nPos[0] == lnum && nPos[1] > s:origSnipPos
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let j += 1
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endif
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if nPos[0] > s:origPos[0][0] | break | endif
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let nPos[1] -= changeLen*j
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endfor
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endif
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endfor
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endif
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unl s:endSnip s:origPos s:origSnipPos
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endif
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unl s:startSnip s:origWordLen s:update
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endf
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fun s:UpdateTabStops(changeLine, changeCol)
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" there's probably a more efficient way to do this as well...
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let lnum = s:snipPos[s:curPos-1][0]
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let col = s:snipPos[s:curPos-1][1]
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" update the line number of all proceeding tab stops if <cr> has
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" been inserted
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if a:changeLine != 0
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for pos in s:snipPos[(s:curPos):]
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if pos[0] >= lnum
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if pos[0] == lnum
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let pos[1] += a:changeCol
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endif
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let pos[0] += a:changeLine
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endif
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if pos[2] != -1
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for nPos in pos[3]
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if nPos[0] >= lnum
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if nPos[0] == lnum
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let nPos[1] += a:changeCol
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endif
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let nPos[0] += a:changeLine
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endif
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endfor
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endif
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endfor
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elseif a:changeCol != 0
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" update the column of all proceeding tab stops if text has
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" been inserted/deleted in the current line
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for pos in s:snipPos[(s:curPos):]
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if pos[1] >= col && pos[0] == lnum
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let pos[1] += a:changeCol
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endif
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if pos[2] != -1
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for nPos in pos[3]
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if nPos[0] > lnum | break | endif
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if nPos[0] == lnum && nPos[1] >= col
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let nPos[1] += a:changeCol
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|
endif
|
|
endfor
|
|
endif
|
|
endfor
|
|
endif
|
|
endf
|
|
|
|
fun s:SelectWord()
|
|
let s:origWordLen = s:snipPos[s:curPos][2]
|
|
let s:oldWord = strpart(getline('.'), s:snipPos[s:curPos][1]-1,
|
|
\ s:origWordLen)
|
|
let s:prevLen[1] -= s:origWordLen
|
|
if !empty(s:snipPos[s:curPos][3])
|
|
let s:update = 1
|
|
let s:endSnip = -1
|
|
let s:startSnip = s:snipPos[s:curPos][1]-1
|
|
endif
|
|
if !s:origWordLen | return '' | endif
|
|
let l = col('.') != 1 ? 'l' : ''
|
|
if &sel == 'exclusive'
|
|
return "\<esc>".l.'v'.s:origWordLen."l\<c-g>"
|
|
endif
|
|
return s:origWordLen == 1 ? "\<esc>".l.'gh'
|
|
\ : "\<esc>".l.'v'.(s:origWordLen-1)."l\<c-g>"
|
|
endf
|
|
|
|
" This updates the snippet as you type when text needs to be inserted
|
|
" into multiple places (e.g. in "${1:default text}foo$1bar$1",
|
|
" "default text" would be highlighted, and if the user types something,
|
|
" UpdateChangedSnip() would be called so that the text after "foo" & "bar"
|
|
" are updated accordingly)
|
|
"
|
|
" It also automatically quits the snippet if the cursor is moved out of it
|
|
" while in insert mode.
|
|
au CursorMovedI * call s:UpdateChangedSnip(0)
|
|
au InsertEnter * call s:UpdateChangedSnip(1)
|
|
fun s:UpdateChangedSnip(entering)
|
|
if exists('s:update')
|
|
if !exists('s:origPos') && s:curPos+1 < s:snipLen
|
|
" save the old snippet & word length before it's updated
|
|
" s:startSnip must be saved too, in case text is added
|
|
" before the snippet (e.g. in "foo$1${2}bar${1:foo}")
|
|
let s:origSnipPos = s:startSnip
|
|
let s:origPos = deepcopy(s:snipPos[s:curPos][3])
|
|
endif
|
|
let col = col('.')-1
|
|
|
|
if s:endSnip != -1
|
|
let changeLen = col('$') - s:prevLen[1]
|
|
let s:endSnip += changeLen
|
|
else " when being updated the first time, after leaving select mode
|
|
if a:entering | return | endif
|
|
let s:endSnip = col-1
|
|
endif
|
|
|
|
" if the cursor moves outside the snippet, quit it
|
|
if line('.') != s:snipPos[s:curPos][0] || col < s:startSnip ||
|
|
\ col-1 > s:endSnip
|
|
unl! s:startSnip s:origWordLen s:origPos s:update
|
|
return s:RemoveSnippet()
|
|
endif
|
|
|
|
call s:UpdateSnip()
|
|
let s:prevLen[1] = col('$')
|
|
elseif exists('s:snipPos')
|
|
let col = col('.')
|
|
let lnum = line('.')
|
|
let changeLine = line('$') - s:prevLen[0]
|
|
|
|
if lnum == s:endSnipLine
|
|
let s:endSnip += col('$') - s:prevLen[1]
|
|
let s:prevLen = [line('$'), col('$')]
|
|
endif
|
|
if changeLine != 0
|
|
let s:endSnipLine += changeLine
|
|
let s:endSnip = col
|
|
endif
|
|
|
|
" delete snippet if cursor moves out of it in insert mode
|
|
if (lnum == s:endSnipLine && (col > s:endSnip || col < s:snipPos[s:curPos][1]))
|
|
\ || lnum > s:endSnipLine || lnum < s:snipPos[s:curPos][0]
|
|
call s:RemoveSnippet()
|
|
endif
|
|
endif
|
|
endf
|
|
|
|
fun s:UpdateSnip()
|
|
" using strpart() here avoids a bug if s:endSnip is negative that would
|
|
" happen with the getline('.')[(s:startSnip):(s:endSnip)] syntax
|
|
let newWordLen = s:endSnip - s:startSnip + 1
|
|
let newWord = strpart(getline('.'), s:startSnip, newWordLen)
|
|
if newWord != s:oldWord
|
|
let changeLen = s:snipPos[s:curPos][2] - newWordLen
|
|
let curLine = line('.')
|
|
let startCol = col('.')
|
|
let oldStartSnip = s:startSnip
|
|
let updateSnip = changeLen != 0
|
|
let i = 0
|
|
|
|
for pos in s:snipPos[s:curPos][3]
|
|
if updateSnip
|
|
let start = s:startSnip
|
|
if pos[0] == curLine && pos[1] <= start
|
|
let s:startSnip -= changeLen
|
|
let s:endSnip -= changeLen
|
|
endif
|
|
for nPos in s:snipPos[s:curPos][3][(i):]
|
|
if nPos[0] == pos[0]
|
|
if nPos[1] > pos[1] || (nPos == [curLine, pos[1]] &&
|
|
\ nPos[1] > start)
|
|
let nPos[1] -= changeLen
|
|
endif
|
|
elseif nPos[0] > pos[0] | break | endif
|
|
endfor
|
|
let i += 1
|
|
endif
|
|
|
|
call setline(pos[0], substitute(getline(pos[0]), '\%'.pos[1].'c'.
|
|
\ s:oldWord, newWord, ''))
|
|
endfor
|
|
if oldStartSnip != s:startSnip
|
|
call cursor('.', startCol + s:startSnip - oldStartSnip)
|
|
endif
|
|
|
|
let s:oldWord = newWord
|
|
let s:snipPos[s:curPos][2] = newWordLen
|
|
endif
|
|
endf
|
|
" vim:noet:sw=4:ts=4:ft=vim
|