autoload pathogen and snipMate

2 files changed, 699 insertions, 0 deletions

diff --git a/.vim/autoload/pathogen.vim b/.vim/autoload/pathogen.vim
new file mode 100644
index 0000000..3582fbf
--- /dev/null
+++ b/.vim/autoload/pathogen.vim
@@ -0,0 +1,264 @@
+" pathogen.vim - path option manipulation
+" Maintainer:   Tim Pope <http://tpo.pe/>
+" Version:      2.4
+
+" Install in ~/.vim/autoload (or ~\vimfiles\autoload).
+"
+" For management of individually installed plugins in ~/.vim/bundle (or
+" ~\vimfiles\bundle), adding `execute pathogen#infect()` to the top of your
+" .vimrc is the only other setup necessary.
+"
+" The API is documented inline below.
+
+if exists("g:loaded_pathogen") || &cp
+  finish
+endif
+let g:loaded_pathogen = 1
+
+" Point of entry for basic default usage.  Give a relative path to invoke
+" pathogen#interpose() or an absolute path to invoke pathogen#surround().
+" Curly braces are expanded with pathogen#expand(): "bundle/{}" finds all
+" subdirectories inside "bundle" inside all directories in the runtime path.
+" If no arguments are given, defaults "bundle/{}", and also "pack/{}/start/{}"
+" on versions of Vim without native package support.
+function! pathogen#infect(...) abort
+  if a:0
+    let paths = filter(reverse(copy(a:000)), 'type(v:val) == type("")')
+  else
+    let paths = ['bundle/{}', 'pack/{}/start/{}']
+  endif
+  if has('packages')
+    call filter(paths, 'v:val !~# "^pack/[^/]*/start/[^/]*$"')
+  endif
+  let static = '^\%([$~\\/]\|\w:[\\/]\)[^{}*]*$'
+  for path in filter(copy(paths), 'v:val =~# static')
+    call pathogen#surround(path)
+  endfor
+  for path in filter(copy(paths), 'v:val !~# static')
+    if path =~# '^\%([$~\\/]\|\w:[\\/]\)'
+      call pathogen#surround(path)
+    else
+      call pathogen#interpose(path)
+    endif
+  endfor
+  call pathogen#cycle_filetype()
+  if pathogen#is_disabled($MYVIMRC)
+    return 'finish'
+  endif
+  return ''
+endfunction
+
+" Split a path into a list.
+function! pathogen#split(path) abort
+  if type(a:path) == type([]) | return a:path | endif
+  if empty(a:path) | return [] | endif
+  let split = split(a:path,'\\\@<!\%(\\\\\)*\zs,')
+  return map(split,'substitute(v:val,''\\\([\\,]\)'',''\1'',"g")')
+endfunction
+
+" Convert a list to a path.
+function! pathogen#join(...) abort
+  if type(a:1) == type(1) && a:1
+    let i = 1
+    let space = ' '
+  else
+    let i = 0
+    let space = ''
+  endif
+  let path = ""
+  while i < a:0
+    if type(a:000[i]) == type([])
+      let list = a:000[i]
+      let j = 0
+      while j < len(list)
+        let escaped = substitute(list[j],'[,'.space.']\|\\[\,'.space.']\@=','\\&','g')
+        let path .= ',' . escaped
+        let j += 1
+      endwhile
+    else
+      let path .= "," . a:000[i]
+    endif
+    let i += 1
+  endwhile
+  return substitute(path,'^,','','')
+endfunction
+
+" Convert a list to a path with escaped spaces for 'path', 'tag', etc.
+function! pathogen#legacyjoin(...) abort
+  return call('pathogen#join',[1] + a:000)
+endfunction
+
+" Turn filetype detection off and back on again if it was already enabled.
+function! pathogen#cycle_filetype() abort
+  if exists('g:did_load_filetypes')
+    filetype off
+    filetype on
+  endif
+endfunction
+
+" Check if a bundle is disabled.  A bundle is considered disabled if its
+" basename or full name is included in the list g:pathogen_blacklist or the
+" comma delimited environment variable $VIMBLACKLIST.
+function! pathogen#is_disabled(path) abort
+  if a:path =~# '\~$'
+    return 1
+  endif
+  let sep = pathogen#slash()
+  let blacklist = get(g:, 'pathogen_blacklist', get(g:, 'pathogen_disabled', [])) + pathogen#split($VIMBLACKLIST)
+  if !empty(blacklist)
+    call map(blacklist, 'substitute(v:val, "[\\/]$", "", "")')
+  endif
+  return index(blacklist, fnamemodify(a:path, ':t')) != -1 || index(blacklist, a:path) != -1
+endfunction
+
+" Prepend the given directory to the runtime path and append its corresponding
+" after directory.  Curly braces are expanded with pathogen#expand().
+function! pathogen#surround(path) abort
+  let sep = pathogen#slash()
+  let rtp = pathogen#split(&rtp)
+  let path = fnamemodify(a:path, ':s?[\\/]\=$??')
+  let before = filter(pathogen#expand(path), '!pathogen#is_disabled(v:val)')
+  let after = filter(reverse(pathogen#expand(path, sep.'after')), '!pathogen#is_disabled(v:val[0:-7])')
+  call filter(rtp, 'index(before + after, v:val) == -1')
+  let &rtp = pathogen#join(before, rtp, after)
+  return &rtp
+endfunction
+
+" For each directory in the runtime path, add a second entry with the given
+" argument appended.  Curly braces are expanded with pathogen#expand().
+function! pathogen#interpose(name) abort
+  let sep = pathogen#slash()
+  let name = a:name
+  if has_key(s:done_bundles, name)
+    return ""
+  endif
+  let s:done_bundles[name] = 1
+  let list = []
+  for dir in pathogen#split(&rtp)
+    if dir =~# '\<after$'
+      let list += reverse(filter(pathogen#expand(dir[0:-6].name, sep.'after'), '!pathogen#is_disabled(v:val[0:-7])')) + [dir]
+    else
+      let list += [dir] + filter(pathogen#expand(dir.sep.name), '!pathogen#is_disabled(v:val)')
+    endif
+  endfor
+  let &rtp = pathogen#join(pathogen#uniq(list))
+  return 1
+endfunction
+
+let s:done_bundles = {}
+
+" Invoke :helptags on all non-$VIM doc directories in runtimepath.
+function! pathogen#helptags() abort
+  let sep = pathogen#slash()
+  for glob in pathogen#split(&rtp)
+    for dir in map(split(glob(glob), "\n"), 'v:val.sep."/doc/".sep')
+      if (dir)[0 : strlen($VIMRUNTIME)] !=# $VIMRUNTIME.sep && filewritable(dir) == 2 && !empty(split(glob(dir.'*.txt'))) && (!filereadable(dir.'tags') || filewritable(dir.'tags'))
+        silent! execute 'helptags' pathogen#fnameescape(dir)
+      endif
+    endfor
+  endfor
+endfunction
+
+command! -bar Helptags :call pathogen#helptags()
+
+" Execute the given command.  This is basically a backdoor for --remote-expr.
+function! pathogen#execute(...) abort
+  for command in a:000
+    execute command
+  endfor
+  return ''
+endfunction
+
+" Section: Unofficial
+
+function! pathogen#is_absolute(path) abort
+  return a:path =~# (has('win32') ? '^\%([\\/]\|\w:\)[\\/]\|^[~$]' : '^[/~$]')
+endfunction
+
+" Given a string, returns all possible permutations of comma delimited braced
+" alternatives of that string.  pathogen#expand('/{a,b}/{c,d}') yields
+" ['/a/c', '/a/d', '/b/c', '/b/d'].  Empty braces are treated as a wildcard
+" and globbed.  Actual globs are preserved.
+function! pathogen#expand(pattern, ...) abort
+  let after = a:0 ? a:1 : ''
+  let pattern = substitute(a:pattern, '^[~$][^\/]*', '\=expand(submatch(0))', '')
+  if pattern =~# '{[^{}]\+}'
+    let [pre, pat, post] = split(substitute(pattern, '\(.\{-\}\){\([^{}]\+\)}\(.*\)', "\\1\001\\2\001\\3", ''), "\001", 1)
+    let found = map(split(pat, ',', 1), 'pre.v:val.post')
+    let results = []
+    for pattern in found
+      call extend(results, pathogen#expand(pattern))
+    endfor
+  elseif pattern =~# '{}'
+    let pat = matchstr(pattern, '^.*{}[^*]*\%($\|[\\/]\)')
+    let post = pattern[strlen(pat) : -1]
+    let results = map(split(glob(substitute(pat, '{}', '*', 'g')), "\n"), 'v:val.post')
+  else
+    let results = [pattern]
+  endif
+  let vf = pathogen#slash() . 'vimfiles'
+  call map(results, 'v:val =~# "\\*" ? v:val.after : isdirectory(v:val.vf.after) ? v:val.vf.after : isdirectory(v:val.after) ? v:val.after : ""')
+  return filter(results, '!empty(v:val)')
+endfunction
+
+" \ on Windows unless shellslash is set, / everywhere else.
+function! pathogen#slash() abort
+  return !exists("+shellslash") || &shellslash ? '/' : '\'
+endfunction
+
+function! pathogen#separator() abort
+  return pathogen#slash()
+endfunction
+
+" Convenience wrapper around glob() which returns a list.
+function! pathogen#glob(pattern) abort
+  let files = split(glob(a:pattern),"\n")
+  return map(files,'substitute(v:val,"[".pathogen#slash()."/]$","","")')
+endfunction
+
+" Like pathogen#glob(), only limit the results to directories.
+function! pathogen#glob_directories(pattern) abort
+  return filter(pathogen#glob(a:pattern),'isdirectory(v:val)')
+endfunction
+
+" Remove duplicates from a list.
+function! pathogen#uniq(list) abort
+  let i = 0
+  let seen = {}
+  while i < len(a:list)
+    if (a:list[i] ==# '' && exists('empty')) || has_key(seen,a:list[i])
+      call remove(a:list,i)
+    elseif a:list[i] ==# ''
+      let i += 1
+      let empty = 1
+    else
+      let seen[a:list[i]] = 1
+      let i += 1
+    endif
+  endwhile
+  return a:list
+endfunction
+
+" Backport of fnameescape().
+function! pathogen#fnameescape(string) abort
+  if exists('*fnameescape')
+    return fnameescape(a:string)
+  elseif a:string ==# '-'
+    return '\-'
+  else
+    return substitute(escape(a:string," \t\n*?[{`$\\%#'\"|!<"),'^[+>]','\\&','')
+  endif
+endfunction
+
+" Like findfile(), but hardcoded to use the runtimepath.
+function! pathogen#runtime_findfile(file,count) abort
+  let rtp = pathogen#join(1,pathogen#split(&rtp))
+  let file = findfile(a:file,rtp,a:count)
+  if file ==# ''
+    return ''
+  else
+    return fnamemodify(file,':p')
+  endif
+endfunction
+
+" vim:set et sw=2 foldmethod=expr foldexpr=getline(v\:lnum)=~'^\"\ Section\:'?'>1'\:getline(v\:lnum)=~#'^fu'?'a1'\:getline(v\:lnum)=~#'^endf'?'s1'\:'=':
diff --git a/.vim/autoload/snipMate.vim b/.vim/autoload/snipMate.vim
new file mode 100644
index 0000000..0ad5a58
--- /dev/null
+++ b/.vim/autoload/snipMate.vim
@@ -0,0 +1,435 @@
+fun! Filename(...)
+	let filename = expand('%:t:r')
+	if filename == '' | return a:0 == 2 ? a:2 : '' | endif
+	return !a:0 || a:1 == '' ? filename : substitute(a:1, '$1', filename, 'g')
+endf
+
+fun s:RemoveSnippet()
+	unl! g:snipPos s:curPos s:snipLen s:endCol s:endLine s:prevLen
+	     \ s:lastBuf s:oldWord
+	if exists('s:update')
+		unl s:startCol s:origWordLen s:update
+		if exists('s:oldVars') | unl s:oldVars s:oldEndCol | endif
+	endif
+	aug! snipMateAutocmds
+endf
+
+fun snipMate#expandSnip(snip, col)
+	let lnum = line('.') | let col = a:col
+
+	let snippet = s:ProcessSnippet(a:snip)
+	" Avoid error if eval evaluates to nothing
+	if snippet == '' | return '' | endif
+
+	" Expand snippet onto current position with the tab stops removed
+	let snipLines = split(substitute(snippet, '$\d\+\|${\d\+.\{-}}', '', 'g'), "\n", 1)
+
+	let line = getline(lnum)
+	let afterCursor = strpart(line, col - 1)
+	" Keep text after the cursor
+	if afterCursor != "\t" && afterCursor != ' '
+		let line = strpart(line, 0, col - 1)
+		let snipLines[-1] .= afterCursor
+	else
+		let afterCursor = ''
+		" For some reason the cursor needs to move one right after this
+		if line != '' && col == 1 && &ve != 'all' && &ve != 'onemore'
+			let col += 1
+		endif
+	endif
+
+	call setline(lnum, line.snipLines[0])
+
+	" Autoindent snippet according to previous indentation
+	let indent = matchend(line, '^.\{-}\ze\(\S\|$\)') + 1
+	call append(lnum, map(snipLines[1:], "'".strpart(line, 0, indent - 1)."'.v:val"))
+
+	" Open any folds snippet expands into
+	if &fen | sil! exe lnum.','.(lnum + len(snipLines) - 1).'foldopen' | endif
+
+	let [g:snipPos, s:snipLen] = s:BuildTabStops(snippet, lnum, col - indent, indent)
+
+	if s:snipLen
+		aug snipMateAutocmds
+			au CursorMovedI * call s:UpdateChangedSnip(0)
+			au InsertEnter * call s:UpdateChangedSnip(1)
+		aug END
+		let s:lastBuf = bufnr(0) " Only expand snippet while in current buffer
+		let s:curPos = 0
+		let s:endCol = g:snipPos[s:curPos][1]
+		let s:endLine = g:snipPos[s:curPos][0]
+
+		call cursor(g:snipPos[s:curPos][0], g:snipPos[s:curPos][1])
+		let s:prevLen = [line('$'), col('$')]
+		if g:snipPos[s:curPos][2] != -1 | return s:SelectWord() | endif
+	else
+		unl g:snipPos s:snipLen
+		" Place cursor at end of snippet if no tab stop is given
+		let newlines = len(snipLines) - 1
+		call cursor(lnum + newlines, indent + len(snipLines[-1]) - len(afterCursor)
+					\ + (newlines ? 0: col - 1))
+	endif
+	return ''
+endf
+
+" Prepare snippet to be processed by s:BuildTabStops
+fun s:ProcessSnippet(snip)
+	let snippet = a:snip
+	" Evaluate eval (`...`) expressions.
+	" Backquotes prefixed with a backslash "\" are ignored.
+	" Using a loop here instead of a regex fixes a bug with nested "\=".
+	if stridx(snippet, '`') != -1
+		while match(snippet, '\(^\|[^\\]\)`.\{-}[^\\]`') != -1
+			let snippet = substitute(snippet, '\(^\|[^\\]\)\zs`.\{-}[^\\]`\ze',
+		                \ substitute(eval(matchstr(snippet, '\(^\|[^\\]\)`\zs.\{-}[^\\]\ze`')),
+		                \ "\n\\%$", '', ''), '')
+		endw
+		let snippet = substitute(snippet, "\r", "\n", 'g')
+		let snippet = substitute(snippet, '\\`', '`', 'g')
+	endif
+
+	" Place all text after a colon in a tab stop after the tab stop
+	" (e.g. "${#:foo}" becomes "${:foo}foo").
+	" This helps tell the position of the tab stops later.
+	let snippet = substitute(snippet, '${\d\+:\(.\{-}\)}', '&\1', 'g')
+
+	" Update the a:snip so that all the $# become the text after
+	" the colon in their associated ${#}.
+	" (e.g. "${1:foo}" turns all "$1"'s into "foo")
+	let i = 1
+	while stridx(snippet, '${'.i) != -1
+		let s = matchstr(snippet, '${'.i.':\zs.\{-}\ze}')
+		if s != ''
+			let snippet = substitute(snippet, '$'.i, s.'&', 'g')
+		endif
+		let i += 1
+	endw
+
+	if &et " Expand tabs to spaces if 'expandtab' is set.
+		return substitute(snippet, '\t', repeat(' ', &sts ? &sts : &sw), 'g')
+	endif
+	return snippet
+endf
+
+" Counts occurences of haystack in needle
+fun s:Count(haystack, needle)
+	let counter = 0
+	let index = stridx(a:haystack, a:needle)
+	while index != -1
+		let index = stridx(a:haystack, a:needle, index+1)
+		let counter += 1
+	endw
+	return counter
+endf
+
+" Builds a list of a list of each tab stop in the snippet containing:
+" 1.) The tab stop's line number.
+" 2.) The tab stop's column number
+"     (by getting the length of the string between the last "\n" and the
+"     tab stop).
+" 3.) The length of the text after the colon for the current tab stop
+"     (e.g. "${1:foo}" would return 3). If there is no text, -1 is returned.
+" 4.) If the "${#:}" construct is given, another list containing all
+"     the matches of "$#", to be replaced with the placeholder. This list is
+"     composed the same way as the parent; the first item is the line number,
+"     and the second is the column.
+fun s:BuildTabStops(snip, lnum, col, indent)
+	let snipPos = []
+	let i = 1
+	let withoutVars = substitute(a:snip, '$\d\+', '', 'g')
+	while stridx(a:snip, '${'.i) != -1
+		let beforeTabStop = matchstr(withoutVars, '^.*\ze${'.i.'\D')
+		let withoutOthers = substitute(withoutVars, '${\('.i.'\D\)\@!\d\+.\{-}}', '', 'g')
+
+		let j = i - 1
+		call add(snipPos, [0, 0, -1])
+		let snipPos[j][0] = a:lnum + s:Count(beforeTabStop, "\n")
+		let snipPos[j][1] = a:indent + len(matchstr(withoutOthers, '.*\(\n\|^\)\zs.*\ze${'.i.'\D'))
+		if snipPos[j][0] == a:lnum | let snipPos[j][1] += a:col | endif
+
+		" Get all $# matches in another list, if ${#:name} is given
+		if stridx(withoutVars, '${'.i.':') != -1
+			let snipPos[j][2] = len(matchstr(withoutVars, '${'.i.':\zs.\{-}\ze}'))
+			let dots = repeat('.', snipPos[j][2])
+			call add(snipPos[j], [])
+			let withoutOthers = substitute(a:snip, '${\d\+.\{-}}\|$'.i.'\@!\d\+', '', 'g')
+			while match(withoutOthers, '$'.i.'\(\D\|$\)') != -1
+				let beforeMark = matchstr(withoutOthers, '^.\{-}\ze'.dots.'$'.i.'\(\D\|$\)')
+				call add(snipPos[j][3], [0, 0])
+				let snipPos[j][3][-1][0] = a:lnum + s:Count(beforeMark, "\n")
+				let snipPos[j][3][-1][1] = a:indent + (snipPos[j][3][-1][0] > a:lnum
+				                           \ ? len(matchstr(beforeMark, '.*\n\zs.*'))
+				                           \ : a:col + len(beforeMark))
+				let withoutOthers = substitute(withoutOthers, '$'.i.'\ze\(\D\|$\)', '', '')
+			endw
+		endif
+		let i += 1
+	endw
+	return [snipPos, i - 1]
+endf
+
+fun snipMate#jumpTabStop(backwards)
+	let leftPlaceholder = exists('s:origWordLen')
+	                      \ && s:origWordLen != g:snipPos[s:curPos][2]
+	if leftPlaceholder && exists('s:oldEndCol')
+		let startPlaceholder = s:oldEndCol + 1
+	endif
+
+	if exists('s:update')
+		call s:UpdatePlaceholderTabStops()
+	else
+		call s:UpdateTabStops()
+	endif
+
+	" Don't reselect placeholder if it has been modified
+	if leftPlaceholder && g:snipPos[s:curPos][2] != -1
+		if exists('startPlaceholder')
+			let g:snipPos[s:curPos][1] = startPlaceholder
+		else
+			let g:snipPos[s:curPos][1] = col('.')
+			let g:snipPos[s:curPos][2] = 0
+		endif
+	endif
+
+	let s:curPos += a:backwards ? -1 : 1
+	" Loop over the snippet when going backwards from the beginning
+	if s:curPos < 0 | let s:curPos = s:snipLen - 1 | endif
+
+	if s:curPos == s:snipLen
+		let sMode = s:endCol == g:snipPos[s:curPos-1][1]+g:snipPos[s:curPos-1][2]
+		call s:RemoveSnippet()
+		return sMode ? "\<tab>" : TriggerSnippet()
+	endif
+
+	call cursor(g:snipPos[s:curPos][0], g:snipPos[s:curPos][1])
+
+	let s:endLine = g:snipPos[s:curPos][0]
+	let s:endCol = g:snipPos[s:curPos][1]
+	let s:prevLen = [line('$'), col('$')]
+
+	return g:snipPos[s:curPos][2] == -1 ? '' : s:SelectWord()
+endf
+
+fun s:UpdatePlaceholderTabStops()
+	let changeLen = s:origWordLen - g:snipPos[s:curPos][2]
+	unl s:startCol s:origWordLen s:update
+	if !exists('s:oldVars') | return | endif
+	" Update tab stops in snippet if text has been added via "$#"
+	" (e.g., in "${1:foo}bar$1${2}").
+	if changeLen != 0
+		let curLine = line('.')
+
+		for pos in g:snipPos
+			if pos == g:snipPos[s:curPos] | continue | endif
+			let changed = pos[0] == curLine && pos[1] > s:oldEndCol
+			let changedVars = 0
+			let endPlaceholder = pos[2] - 1 + pos[1]
+			" Subtract changeLen from each tab stop that was after any of
+			" the current tab stop's placeholders.
+			for [lnum, col] in s:oldVars
+				if lnum > pos[0] | break | endif
+				if pos[0] == lnum
+					if pos[1] > col || (pos[2] == -1 && pos[1] == col)
+						let changed += 1
+					elseif col < endPlaceholder
+						let changedVars += 1
+					endif
+				endif
+			endfor
+			let pos[1] -= changeLen * changed
+			let pos[2] -= changeLen * changedVars " Parse variables within placeholders
+                                                  " e.g., "${1:foo} ${2:$1bar}"
+
+			if pos[2] == -1 | continue | endif
+			" Do the same to any placeholders in the other tab stops.
+			for nPos in pos[3]
+				let changed = nPos[0] == curLine && nPos[1] > s:oldEndCol
+				for [lnum, col] in s:oldVars
+					if lnum > nPos[0] | break | endif
+					if nPos[0] == lnum && nPos[1] > col
+						let changed += 1
+					endif
+				endfor
+				let nPos[1] -= changeLen * changed
+			endfor
+		endfor
+	endif
+	unl s:endCol s:oldVars s:oldEndCol
+endf
+
+fun s:UpdateTabStops()
+	let changeLine = s:endLine - g:snipPos[s:curPos][0]
+	let changeCol = s:endCol - g:snipPos[s:curPos][1]
+	if exists('s:origWordLen')
+		let changeCol -= s:origWordLen
+		unl s:origWordLen
+	endif
+	let lnum = g:snipPos[s:curPos][0]
+	let col = g:snipPos[s:curPos][1]
+	" Update the line number of all proceeding tab stops if <cr> has
+	" been inserted.
+	if changeLine != 0
+		let changeLine -= 1
+		for pos in g:snipPos
+			if pos[0] >= lnum
+				if pos[0] == lnum | let pos[1] += changeCol | endif
+				let pos[0] += changeLine
+			endif
+			if pos[2] == -1 | continue | endif
+			for nPos in pos[3]
+				if nPos[0] >= lnum
+					if nPos[0] == lnum | let nPos[1] += changeCol | endif
+					let nPos[0] += changeLine
+				endif
+			endfor
+		endfor
+	elseif changeCol != 0
+		" Update the column of all proceeding tab stops if text has
+		" been inserted/deleted in the current line.
+		for pos in g:snipPos
+			if pos[1] >= col && pos[0] == lnum
+				let pos[1] += changeCol
+			endif
+			if pos[2] == -1 | continue | endif
+			for nPos in pos[3]
+				if nPos[0] > lnum | break | endif
+				if nPos[0] == lnum && nPos[1] >= col
+					let nPos[1] += changeCol
+				endif
+			endfor
+		endfor
+	endif
+endf
+
+fun s:SelectWord()
+	let s:origWordLen = g:snipPos[s:curPos][2]
+	let s:oldWord = strpart(getline('.'), g:snipPos[s:curPos][1] - 1,
+				\ s:origWordLen)
+	let s:prevLen[1] -= s:origWordLen
+	if !empty(g:snipPos[s:curPos][3])
+		let s:update = 1
+		let s:endCol = -1
+		let s:startCol = g: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.
+fun s:UpdateChangedSnip(entering)
+	if exists('g:snipPos') && bufnr(0) != s:lastBuf
+		call s:RemoveSnippet()
+	elseif exists('s:update') " If modifying a placeholder
+		if !exists('s:oldVars') && s:curPos + 1 < s:snipLen
+			" Save the old snippet & word length before it's updated
+			" s:startCol must be saved too, in case text is added
+			" before the snippet (e.g. in "foo$1${2}bar${1:foo}").
+			let s:oldEndCol = s:startCol
+			let s:oldVars = deepcopy(g:snipPos[s:curPos][3])
+		endif
+		let col = col('.') - 1
+
+		if s:endCol != -1
+			let changeLen = col('$') - s:prevLen[1]
+			let s:endCol += changeLen
+		else " When being updated the first time, after leaving select mode
+			if a:entering | return | endif
+			let s:endCol = col - 1
+		endif
+
+		" If the cursor moves outside the snippet, quit it
+		if line('.') != g:snipPos[s:curPos][0] || col < s:startCol ||
+					\ col - 1 > s:endCol
+			unl! s:startCol s:origWordLen s:oldVars s:update
+			return s:RemoveSnippet()
+		endif
+
+		call s:UpdateVars()
+		let s:prevLen[1] = col('$')
+	elseif exists('g:snipPos')
+		if !a:entering && g:snipPos[s:curPos][2] != -1
+			let g:snipPos[s:curPos][2] = -2
+		endif
+
+		let col = col('.')
+		let lnum = line('.')
+		let changeLine = line('$') - s:prevLen[0]
+
+		if lnum == s:endLine
+			let s:endCol += col('$') - s:prevLen[1]
+			let s:prevLen = [line('$'), col('$')]
+		endif
+		if changeLine != 0
+			let s:endLine += changeLine
+			let s:endCol = col
+		endif
+
+		" Delete snippet if cursor moves out of it in insert mode
+		if (lnum == s:endLine && (col > s:endCol || col < g:snipPos[s:curPos][1]))
+			\ || lnum > s:endLine || lnum < g:snipPos[s:curPos][0]
+			call s:RemoveSnippet()
+		endif
+	endif
+endf
+
+" This updates the variables in a snippet when a placeholder has been edited.
+" (e.g., each "$1" in "${1:foo} $1bar $1bar")
+fun s:UpdateVars()
+	let newWordLen = s:endCol - s:startCol + 1
+	let newWord = strpart(getline('.'), s:startCol, newWordLen)
+	if newWord == s:oldWord || empty(g:snipPos[s:curPos][3])
+		return
+	endif
+
+	let changeLen = g:snipPos[s:curPos][2] - newWordLen
+	let curLine = line('.')
+	let startCol = col('.')
+	let oldStartSnip = s:startCol
+	let updateTabStops = changeLen != 0
+	let i = 0
+
+	for [lnum, col] in g:snipPos[s:curPos][3]
+		if updateTabStops
+			let start = s:startCol
+			if lnum == curLine && col <= start
+				let s:startCol -= changeLen
+				let s:endCol -= changeLen
+			endif
+			for nPos in g:snipPos[s:curPos][3][(i):]
+				" This list is in ascending order, so quit if we've gone too far.
+				if nPos[0] > lnum | break | endif
+				if nPos[0] == lnum && nPos[1] > col
+					let nPos[1] -= changeLen
+				endif
+			endfor
+			if lnum == curLine && col > start
+				let col -= changeLen
+				let g:snipPos[s:curPos][3][i][1] = col
+			endif
+			let i += 1
+		endif
+
+		" "Very nomagic" is used here to allow special characters.
+		call setline(lnum, substitute(getline(lnum), '\%'.col.'c\V'.
+						\ escape(s:oldWord, '\'), escape(newWord, '\&'), ''))
+	endfor
+	if oldStartSnip != s:startCol
+		call cursor(0, startCol + s:startCol - oldStartSnip)
+	endif
+
+	let s:oldWord = newWord
+	let g:snipPos[s:curPos][2] = newWordLen
+endf
+" vim:noet:sw=4:ts=4:ft=vim