adding coffescript vim support

9 files changed, 943 insertions, 0 deletions

diff --git a/vim/after/syntax/haml.vim b/vim/after/syntax/haml.vim
new file mode 100755
index 0000000..d82fbea
--- /dev/null
+++ b/vim/after/syntax/haml.vim
@@ -0,0 +1,9 @@
+" Language:    CoffeeScript
+" Maintainer:  Sven Felix Oberquelle <Svelix.Github@gmail.com>
+" URL:         http://github.com/kchmck/vim-coffee-script
+" License:     WTFPL
+
+" Inherit coffee from html so coffeeComment isn't redefined and given higher
+" priority than hamlInterpolation.
+syn cluster hamlCoffeescript contains=@htmlCoffeeScript
+syn region  hamlCoffeescriptFilter matchgroup=hamlFilter start="^\z(\s*\):coffeescript\s*$" end="^\%(\z1 \| *$\)\@!" contains=@hamlCoffeeScript,hamlInterpolation keepend
diff --git a/vim/after/syntax/html.vim b/vim/after/syntax/html.vim
new file mode 100755
index 0000000..63ebaec
--- /dev/null
+++ b/vim/after/syntax/html.vim
@@ -0,0 +1,10 @@
+" Language:    CoffeeScript
+" Maintainer:  Mick Koch <kchmck@gmail.com>
+" URL:         http://github.com/kchmck/vim-coffee-script
+" License:     WTFPL
+
+" Syntax highlighting for text/coffeescript script tags
+syn include @htmlCoffeeScript syntax/coffee.vim
+syn region coffeeScript start=+<script [^>]*type *=[^>]*text/coffeescript[^>]*>+
+\                       end=+</script>+me=s-1 keepend
+\                       contains=@htmlCoffeeScript,htmlScriptTag,@htmlPreproc
diff --git a/vim/compiler/coffee.vim b/vim/compiler/coffee.vim
new file mode 100755
index 0000000..6d97cd8
--- /dev/null
+++ b/vim/compiler/coffee.vim
@@ -0,0 +1,68 @@
+" Language:    CoffeeScript
+" Maintainer:  Mick Koch <kchmck@gmail.com>
+" URL:         http://github.com/kchmck/vim-coffee-script
+" License:     WTFPL
+
+if exists('current_compiler')
+  finish
+endif
+
+let current_compiler = 'coffee'
+" Pattern to check if coffee is the compiler
+let s:pat = '^' . current_compiler
+
+" Extra options passed to CoffeeMake
+if !exists("coffee_make_options")
+  let coffee_make_options = ""
+endif
+
+" Get a `makeprg` for the current filename. This is needed to support filenames
+" with spaces and quotes, but also not break generic `make`.
+function! s:GetMakePrg()
+  return 'coffee -c ' . g:coffee_make_options . ' $* ' . fnameescape(expand('%'))
+endfunction
+
+" Set `makeprg` and return 1 if coffee is still the compiler, else return 0.
+function! s:SetMakePrg()
+  if &l:makeprg =~ s:pat
+    let &l:makeprg = s:GetMakePrg()
+  elseif &g:makeprg =~ s:pat
+    let &g:makeprg = s:GetMakePrg()
+  else
+    return 0
+  endif
+
+  return 1
+endfunction
+
+" Set a dummy compiler so we can check whether to set locally or globally.
+CompilerSet makeprg=coffee
+call s:SetMakePrg()
+
+CompilerSet errorformat=Error:\ In\ %f\\,\ %m\ on\ line\ %l,
+                       \Error:\ In\ %f\\,\ Parse\ error\ on\ line\ %l:\ %m,
+                       \SyntaxError:\ In\ %f\\,\ %m,
+                       \%-G%.%#
+
+" Compile the current file.
+command! -bang -bar -nargs=* CoffeeMake make<bang> <args>
+
+" Set `makeprg` on rename since we embed the filename in the setting.
+augroup CoffeeUpdateMakePrg
+  autocmd!
+
+  " Update `makeprg` if coffee is still the compiler, else stop running this
+  " function.
+  function! s:UpdateMakePrg()
+    if !s:SetMakePrg()
+      autocmd! CoffeeUpdateMakePrg
+    endif
+  endfunction
+
+  " Set autocmd locally if compiler was set locally.
+  if &l:makeprg =~ s:pat
+    autocmd BufFilePost,BufWritePost <buffer> call s:UpdateMakePrg()
+  else
+    autocmd BufFilePost,BufWritePost          call s:UpdateMakePrg()
+  endif
+augroup END
diff --git a/vim/ftdetect/coffee.vim b/vim/ftdetect/coffee.vim
new file mode 100755
index 0000000..25daf12
--- /dev/null
+++ b/vim/ftdetect/coffee.vim
@@ -0,0 +1,8 @@
+" Language:    CoffeeScript
+" Maintainer:  Mick Koch <kchmck@gmail.com>
+" URL:         http://github.com/kchmck/vim-coffee-script
+" License:     WTFPL
+
+autocmd BufNewFile,BufRead *.coffee set filetype=coffee
+autocmd BufNewFile,BufRead *Cakefile set filetype=coffee
+autocmd BufNewFile,BufRead *.coffeekup set filetype=coffee
diff --git a/vim/ftdetect/eco.vim b/vim/ftdetect/eco.vim
new file mode 100755
index 0000000..b420649
--- /dev/null
+++ b/vim/ftdetect/eco.vim
@@ -0,0 +1 @@
+autocmd BufNewFile,BufRead *.eco set filetype=eco
diff --git a/vim/ftplugin/coffee.vim b/vim/ftplugin/coffee.vim
new file mode 100755
index 0000000..12ae3f0
--- /dev/null
+++ b/vim/ftplugin/coffee.vim
@@ -0,0 +1,221 @@
+" Language:    CoffeeScript
+" Maintainer:  Mick Koch <kchmck@gmail.com>
+" URL:         http://github.com/kchmck/vim-coffee-script
+" License:     WTFPL
+
+if exists("b:did_ftplugin")
+  finish
+endif
+
+let b:did_ftplugin = 1
+
+setlocal formatoptions-=t formatoptions+=croql
+setlocal comments=:#
+setlocal commentstring=#\ %s
+setlocal omnifunc=javascriptcomplete#CompleteJS
+
+" Enable CoffeeMake if it won't overwrite any settings.
+if !len(&l:makeprg)
+  compiler coffee
+endif
+
+" Reset the global variables used by CoffeeCompile.
+function! s:CoffeeCompileResetVars()
+  " Position in the source buffer
+  let s:coffee_compile_src_buf = -1
+  let s:coffee_compile_src_pos = []
+
+  " Position in the CoffeeCompile buffer
+  let s:coffee_compile_buf = -1
+  let s:coffee_compile_win = -1
+  let s:coffee_compile_pos = []
+
+  " If CoffeeCompile is watching a buffer
+  let s:coffee_compile_watch = 0
+endfunction
+
+" Save the cursor position when moving to and from the CoffeeCompile buffer.
+function! s:CoffeeCompileSavePos()
+  let buf = bufnr('%')
+  let pos = getpos('.')
+
+  if buf == s:coffee_compile_buf
+    let s:coffee_compile_pos = pos
+  else
+    let s:coffee_compile_src_buf = buf
+    let s:coffee_compile_src_pos = pos
+  endif
+endfunction
+
+" Restore the cursor to the source buffer.
+function! s:CoffeeCompileRestorePos()
+  let win = bufwinnr(s:coffee_compile_src_buf)
+
+  if win != -1
+    exec win 'wincmd w'
+    call setpos('.', s:coffee_compile_src_pos)
+  endif
+endfunction
+
+" Close the CoffeeCompile buffer and clean things up.
+function! s:CoffeeCompileClose()
+  silent! autocmd! CoffeeCompileAuPos
+  silent! autocmd! CoffeeCompileAuWatch
+
+  call s:CoffeeCompileRestorePos()
+  call s:CoffeeCompileResetVars()
+endfunction
+
+" Update the CoffeeCompile buffer given some input lines.
+function! s:CoffeeCompileUpdate(startline, endline)
+  let input = join(getline(a:startline, a:endline), "\n")
+
+  " Coffee doesn't like empty input.
+  if !len(input)
+    return
+  endif
+
+  " Compile input.
+  let output = system('coffee -scb 2>&1', input)
+
+  " Move to the CoffeeCompile buffer.
+  exec s:coffee_compile_win 'wincmd w'
+
+  " Replace buffer contents with new output and delete the last empty line.
+  setlocal modifiable
+    exec '% delete _'
+    put! =output
+    exec '$ delete _'
+  setlocal nomodifiable
+
+  " Highlight as JavaScript if there is no compile error.
+  if v:shell_error
+    setlocal filetype=
+  else
+    setlocal filetype=javascript
+  endif
+
+  " Restore the cursor in the compiled output.
+  call setpos('.', s:coffee_compile_pos)
+endfunction
+
+" Update the CoffeeCompile buffer with the whole source buffer and restore the
+" cursor.
+function! s:CoffeeCompileWatchUpdate()
+  call s:CoffeeCompileSavePos()
+  call s:CoffeeCompileUpdate(1, '$')
+  call s:CoffeeCompileRestorePos()
+endfunction
+
+" Peek at compiled CoffeeScript in a scratch buffer. We handle ranges like this
+" to prevent the cursor from being moved (and its position saved) before the
+" function is called.
+function! s:CoffeeCompile(startline, endline, args)
+  " Don't compile the CoffeeCompile buffer.
+  if bufnr('%') == s:coffee_compile_buf
+    return
+  endif
+
+  " Parse arguments.
+  let watch = a:args =~ '\<watch\>'
+  let unwatch = a:args =~ '\<unwatch\>'
+  let size = str2nr(matchstr(a:args, '\<\d\+\>'))
+   
+  " Determine default split direction.
+  if exists("g:coffee_compile_vert")
+    let vert = 1
+  else
+    let vert = a:args =~ '\<vert\%[ical]\>'
+  endif
+
+  " Remove any watch listeners.
+  silent! autocmd! CoffeeCompileAuWatch
+
+  " If just unwatching, don't compile.
+  if unwatch
+    let s:coffee_compile_watch = 0
+    return
+  endif
+
+  if watch
+    let s:coffee_compile_watch = 1
+  endif
+
+  call s:CoffeeCompileSavePos()
+
+  " Build the CoffeeCompile buffer if it doesn't exist.
+  if s:coffee_compile_buf == -1
+    let src_win = bufwinnr(s:coffee_compile_src_buf)
+
+    " Create the new window and resize it.
+    if vert
+      let width = size ? size : winwidth(src_win) / 2
+
+      vertical new
+      exec 'vertical resize' width
+    else
+      " Try to guess the compiled output's height.
+      let height = size ? size : min([winheight(src_win) / 2,
+      \                               a:endline - a:startline + 2])
+
+      botright new
+      exec 'resize' height
+    endif
+
+    " Set up scratch buffer.
+    setlocal bufhidden=wipe buftype=nofile
+    setlocal nobuflisted nomodifiable noswapfile nowrap
+
+    autocmd BufWipeout <buffer> call s:CoffeeCompileClose()
+    nnoremap <buffer> <silent> q :hide<CR>
+
+    " Save the cursor position on each buffer switch.
+    augroup CoffeeCompileAuPos
+      autocmd BufEnter,BufLeave * call s:CoffeeCompileSavePos()
+    augroup END
+
+    let s:coffee_compile_buf = bufnr('%')
+    let s:coffee_compile_win = bufwinnr(s:coffee_compile_buf)
+  endif
+
+  " Go back to the source buffer and do the initial compile.
+  call s:CoffeeCompileRestorePos()
+
+  if s:coffee_compile_watch
+    call s:CoffeeCompileWatchUpdate()
+
+    augroup CoffeeCompileAuWatch
+      autocmd InsertLeave <buffer> call s:CoffeeCompileWatchUpdate()
+    augroup END
+  else
+    call s:CoffeeCompileUpdate(a:startline, a:endline)
+  endif
+endfunction
+
+" Complete arguments for the CoffeeCompile command.
+function! s:CoffeeCompileComplete(arg, cmdline, cursor)
+  let args = ['unwatch', 'vertical', 'watch']
+
+  if !len(a:arg)
+    return args
+  endif
+
+  let match = '^' . a:arg
+
+  for arg in args
+    if arg =~ match
+      return [arg]
+    endif
+  endfor
+endfunction
+
+" Don't let new windows overwrite the CoffeeCompile variables.
+if !exists("s:coffee_compile_buf")
+  call s:CoffeeCompileResetVars()
+endif
+
+" Peek at compiled CoffeeScript.
+command! -range=% -bar -nargs=* -complete=customlist,s:CoffeeCompileComplete
+\        CoffeeCompile call s:CoffeeCompile(<line1>, <line2>, <q-args>)
+" Run some CoffeeScript.
+command! -range=% -bar CoffeeRun <line1>,<line2>:w !coffee -s
diff --git a/vim/indent/coffee.vim b/vim/indent/coffee.vim
new file mode 100755
index 0000000..a798cfc
--- /dev/null
+++ b/vim/indent/coffee.vim
@@ -0,0 +1,328 @@
+" Language:    CoffeeScript
+" Maintainer:  Mick Koch <kchmck@gmail.com>
+" URL:         http://github.com/kchmck/vim-coffee-script
+" License:     WTFPL
+
+if exists("b:did_indent")
+  finish
+endif
+
+let b:did_indent = 1
+
+setlocal autoindent
+setlocal indentexpr=GetCoffeeIndent(v:lnum)
+" Make sure GetCoffeeIndent is run when these are typed so they can be
+" indented or outdented.
+setlocal indentkeys+=0],0),0.,=else,=when,=catch,=finally
+
+" Only define the function once.
+if exists("*GetCoffeeIndent")
+  finish
+endif
+
+" Keywords to indent after
+let s:INDENT_AFTER_KEYWORD = '^\%(if\|unless\|else\|for\|while\|until\|'
+\                          . 'loop\|switch\|when\|try\|catch\|finally\|'
+\                          . 'class\)\>'
+
+" Operators to indent after
+let s:INDENT_AFTER_OPERATOR = '\%([([{:=]\|[-=]>\)$'
+
+" Keywords and operators that continue a line
+let s:CONTINUATION = '\<\%(is\|isnt\|and\|or\)\>$'
+\                  . '\|'
+\                  . '\%(-\@<!-\|+\@<!+\|<\|[-=]\@<!>\|\*\|/\@<!/\|%\||\|'
+\                  . '&\|,\|\.\@<!\.\)$'
+
+" Operators that block continuation indenting
+let s:CONTINUATION_BLOCK = '[([{:=]$'
+
+" A continuation dot access
+let s:DOT_ACCESS = '^\.'
+
+" Keywords to outdent after
+let s:OUTDENT_AFTER = '^\%(return\|break\|continue\|throw\)\>'
+
+" A compound assignment like `... = if ...`
+let s:COMPOUND_ASSIGNMENT = '[:=]\s*\%(if\|unless\|for\|while\|until\|'
+\                         . 'switch\|try\|class\)\>'
+
+" A postfix condition like `return ... if ...`.
+let s:POSTFIX_CONDITION = '\S\s\+\zs\<\%(if\|unless\)\>'
+
+" A single-line else statement like `else ...` but not `else if ...
+let s:SINGLE_LINE_ELSE = '^else\s\+\%(\<\%(if\|unless\)\>\)\@!'
+
+" Max lines to look back for a match
+let s:MAX_LOOKBACK = 50
+
+" Syntax names for strings
+let s:SYNTAX_STRING = 'coffee\%(String\|AssignString\|Embed\|Regex\|Heregex\|'
+\                   . 'Heredoc\)'
+
+" Syntax names for comments
+let s:SYNTAX_COMMENT = 'coffee\%(Comment\|BlockComment\|HeregexComment\)'
+
+" Syntax names for strings and comments
+let s:SYNTAX_STRING_COMMENT = s:SYNTAX_STRING . '\|' . s:SYNTAX_COMMENT
+
+" Get the linked syntax name of a character.
+function! s:SyntaxName(linenum, col)
+  return synIDattr(synID(a:linenum, a:col, 1), 'name')
+endfunction
+
+" Check if a character is in a comment.
+function! s:IsComment(linenum, col)
+  return s:SyntaxName(a:linenum, a:col) =~ s:SYNTAX_COMMENT
+endfunction
+
+" Check if a character is in a string.
+function! s:IsString(linenum, col)
+  return s:SyntaxName(a:linenum, a:col) =~ s:SYNTAX_STRING
+endfunction
+
+" Check if a character is in a comment or string.
+function! s:IsCommentOrString(linenum, col)
+  return s:SyntaxName(a:linenum, a:col) =~ s:SYNTAX_STRING_COMMENT
+endfunction
+
+" Check if a whole line is a comment.
+function! s:IsCommentLine(linenum)
+  " Check the first non-whitespace character.
+  return s:IsComment(a:linenum, indent(a:linenum) + 1)
+endfunction
+
+" Repeatedly search a line for a regex until one is found outside a string or
+" comment.
+function! s:SmartSearch(linenum, regex)
+  " Start at the first column.
+  let col = 0
+
+  " Search until there are no more matches, unless a good match is found.
+  while 1
+    call cursor(a:linenum, col + 1)
+    let [_, col] = searchpos(a:regex, 'cn', a:linenum)
+
+    " No more matches.
+    if !col
+      break
+    endif
+
+    if !s:IsCommentOrString(a:linenum, col)
+      return 1
+    endif
+  endwhile
+
+  " No good match found.
+  return 0
+endfunction
+
+" Skip a match if it's in a comment or string, is a single-line statement that
+" isn't adjacent, or is a postfix condition.
+function! s:ShouldSkip(startlinenum, linenum, col)
+  if s:IsCommentOrString(a:linenum, a:col)
+    return 1
+  endif
+
+  " Check for a single-line statement that isn't adjacent.
+  if s:SmartSearch(a:linenum, '\<then\>') && a:startlinenum - a:linenum > 1
+    return 1
+  endif
+
+  if s:SmartSearch(a:linenum, s:POSTFIX_CONDITION) &&
+  \ !s:SmartSearch(a:linenum, s:COMPOUND_ASSIGNMENT)
+    return 1
+  endif
+
+  return 0
+endfunction
+
+" Find the farthest line to look back to, capped to line 1 (zero and negative
+" numbers cause bad things).
+function! s:MaxLookback(startlinenum)
+  return max([1, a:startlinenum - s:MAX_LOOKBACK])
+endfunction
+
+" Get the skip expression for searchpair().
+function! s:SkipExpr(startlinenum)
+  return "s:ShouldSkip(" . a:startlinenum . ", line('.'), col('.'))"
+endfunction
+
+" Search for pairs of text.
+function! s:SearchPair(start, end)
+  " The cursor must be in the first column for regexes to match.
+  call cursor(0, 1)
+
+  let startlinenum = line('.')
+
+  " Don't need the W flag since MaxLookback caps the search to line 1.
+  return searchpair(a:start, '', a:end, 'bcn',
+  \                 s:SkipExpr(startlinenum),
+  \                 s:MaxLookback(startlinenum))
+endfunction
+
+" Try to find a previous matching line.
+function! s:GetMatch(curline)
+  let firstchar = a:curline[0]
+
+  if firstchar == '}'
+    return s:SearchPair('{', '}')
+  elseif firstchar == ')'
+    return s:SearchPair('(', ')')
+  elseif firstchar == ']'
+    return s:SearchPair('\[', '\]')
+  elseif a:curline =~ '^else\>'
+    return s:SearchPair('\<\%(if\|unless\|when\)\>', '\<else\>')
+  elseif a:curline =~ '^catch\>'
+    return s:SearchPair('\<try\>', '\<catch\>')
+  elseif a:curline =~ '^finally\>'
+    return s:SearchPair('\<try\>', '\<finally\>')
+  endif
+
+  return 0
+endfunction
+
+" Get the nearest previous line that isn't a comment.
+function! s:GetPrevNormalLine(startlinenum)
+  let curlinenum = a:startlinenum
+
+  while curlinenum > 0
+    let curlinenum = prevnonblank(curlinenum - 1)
+
+    if !s:IsCommentLine(curlinenum)
+      return curlinenum
+    endif
+  endwhile
+
+  return 0
+endfunction
+
+" Try to find a comment in a line.
+function! s:FindComment(linenum)
+  let col = 0
+
+  while 1
+    call cursor(a:linenum, col + 1)
+    let [_, col] = searchpos('#', 'cn', a:linenum)
+
+    if !col
+      break
+    endif
+
+    if s:IsComment(a:linenum, col)
+      return col
+    endif
+  endwhile
+
+  return 0
+endfunction
+
+" Get a line without comments or surrounding whitespace.
+function! s:GetTrimmedLine(linenum)
+  let comment = s:FindComment(a:linenum)
+  let line = getline(a:linenum)
+
+  if comment
+    " Subtract 1 to get to the column before the comment and another 1 for
+    " zero-based indexing.
+    let line = line[:comment - 2]
+  endif
+
+  return substitute(substitute(line, '^\s\+', '', ''),
+  \                                  '\s\+$', '', '')
+endfunction
+
+function! s:GetCoffeeIndent(curlinenum)
+  let prevlinenum = s:GetPrevNormalLine(a:curlinenum)
+
+  " Don't do anything if there's no previous line.
+  if !prevlinenum
+    return -1
+  endif
+
+  let curline = s:GetTrimmedLine(a:curlinenum)
+
+  " Try to find a previous matching statement. This handles outdenting.
+  let matchlinenum = s:GetMatch(curline)
+
+  if matchlinenum
+    return indent(matchlinenum)
+  endif
+
+  " Try to find a matching `when`.
+  if curline =~ '^when\>' && !s:SmartSearch(prevlinenum, '\<switch\>')
+    let linenum = a:curlinenum
+
+    while linenum > 0
+      let linenum = s:GetPrevNormalLine(linenum)
+
+      if getline(linenum) =~ '^\s*when\>'
+        return indent(linenum)
+      endif
+    endwhile
+
+    return -1
+  endif
+
+  let prevline = s:GetTrimmedLine(prevlinenum)
+  let previndent = indent(prevlinenum)
+
+  " Always indent after these operators.
+  if prevline =~ s:INDENT_AFTER_OPERATOR
+    return previndent + &shiftwidth
+  endif
+
+  " Indent after a continuation if it's the first.
+  if prevline =~ s:CONTINUATION
+    let prevprevlinenum = s:GetPrevNormalLine(prevlinenum)
+
+    " If the continuation is the first in the file, don't run the other checks.
+    if !prevprevlinenum
+      return previndent + &shiftwidth
+    endif
+
+    let prevprevline = s:GetTrimmedLine(prevprevlinenum)
+
+    if prevprevline !~ s:CONTINUATION && prevprevline !~ s:CONTINUATION_BLOCK
+      return previndent + &shiftwidth
+    endif
+
+    return -1
+  endif
+
+  " Indent after these keywords and compound assignments if they aren't a
+  " single-line statement.
+  if prevline =~ s:INDENT_AFTER_KEYWORD || prevline =~ s:COMPOUND_ASSIGNMENT
+    if !s:SmartSearch(prevlinenum, '\<then\>') && prevline !~ s:SINGLE_LINE_ELSE
+      return previndent + &shiftwidth
+    endif
+
+    return -1
+  endif
+
+  " Indent a dot access if it's the first.
+  if curline =~ s:DOT_ACCESS && prevline !~ s:DOT_ACCESS
+    return previndent + &shiftwidth
+  endif
+
+  " Outdent after these keywords if they don't have a postfix condition or are
+  " a single-line statement.
+  if prevline =~ s:OUTDENT_AFTER
+    if !s:SmartSearch(prevlinenum, s:POSTFIX_CONDITION) ||
+    \   s:SmartSearch(prevlinenum, '\<then\>')
+      return previndent - &shiftwidth
+    endif
+  endif
+
+  " No indenting or outdenting is needed.
+  return -1
+endfunction
+
+" Wrap s:GetCoffeeIndent to keep the cursor position.
+function! GetCoffeeIndent(curlinenum)
+  let oldcursor = getpos('.')
+  let indent = s:GetCoffeeIndent(a:curlinenum)
+  call setpos('.', oldcursor)
+
+  return indent
+endfunction
diff --git a/vim/syntax/coffee.vim b/vim/syntax/coffee.vim
new file mode 100755
index 0000000..c324435
--- /dev/null
+++ b/vim/syntax/coffee.vim
@@ -0,0 +1,236 @@
+" Language:    CoffeeScript
+" Maintainer:  Mick Koch <kchmck@gmail.com>
+" URL:         http://github.com/kchmck/vim-coffee-script
+" License:     WTFPL
+
+" Bail if our syntax is already loaded.
+if exists('b:current_syntax') && b:current_syntax == 'coffee'
+  finish
+endif
+
+" Include JavaScript for coffeeEmbed.
+syn include @coffeeJS syntax/javascript.vim
+
+" Highlight long strings.
+syn sync minlines=100
+
+" CoffeeScript identifiers can have dollar signs.
+setlocal isident+=$
+
+" These are `matches` instead of `keywords` because vim's highlighting
+" priority for keywords is higher than matches. This causes keywords to be
+" highlighted inside matches, even if a match says it shouldn't contain them --
+" like with coffeeAssign and coffeeDot.
+syn match coffeeStatement /\<\%(return\|break\|continue\|throw\)\>/ display
+hi def link coffeeStatement Statement
+
+syn match coffeeRepeat /\<\%(for\|while\|until\|loop\)\>/ display
+hi def link coffeeRepeat Repeat
+
+syn match coffeeConditional /\<\%(if\|else\|unless\|switch\|when\|then\)\>/
+\                           display
+hi def link coffeeConditional Conditional
+
+syn match coffeeException /\<\%(try\|catch\|finally\)\>/ display
+hi def link coffeeException Exception
+
+syn match coffeeKeyword /\<\%(new\|in\|of\|by\|and\|or\|not\|is\|isnt\|class\|extends\|super\|do\)\>/
+\                       display
+" The `own` keyword is only a keyword after `for`.
+syn match coffeeKeyword /\<for\s\+own\>/ contained containedin=coffeeRepeat
+\                       display
+hi def link coffeeKeyword Keyword
+
+syn match coffeeOperator /\<\%(instanceof\|typeof\|delete\)\>/ display
+hi def link coffeeOperator Operator
+
+" The first case matches symbol operators only if they have an operand before.
+syn match coffeeExtendedOp /\%(\S\s*\)\@<=[+\-*/%&|\^=!<>?.]\+\|[-=]>\|--\|++\|::/
+\                          display
+syn match coffeeExtendedOp /\%(and\|or\)=/ display
+hi def link coffeeExtendedOp coffeeOperator
+
+" This is separate from `coffeeExtendedOp` to help differentiate commas from
+" dots.
+syn match coffeeSpecialOp /[,;]/ display
+hi def link coffeeSpecialOp SpecialChar
+
+syn match coffeeBoolean /\<\%(true\|on\|yes\|false\|off\|no\)\>/ display
+hi def link coffeeBoolean Boolean
+
+syn match coffeeGlobal /\<\%(null\|undefined\)\>/ display
+hi def link coffeeGlobal Type
+
+" A special variable
+syn match coffeeSpecialVar /\<\%(this\|prototype\|arguments\)\>/ display
+" An @-variable
+syn match coffeeSpecialVar /@\%(\I\i*\)\?/ display
+hi def link coffeeSpecialVar Special
+
+" A class-like name that starts with a capital letter
+syn match coffeeObject /\<\u\w*\>/ display
+hi def link coffeeObject Structure
+
+" A constant-like name in SCREAMING_CAPS
+syn match coffeeConstant /\<\u[A-Z0-9_]\+\>/ display
+hi def link coffeeConstant Constant
+
+" A variable name
+syn cluster coffeeIdentifier contains=coffeeSpecialVar,coffeeObject,
+\                                     coffeeConstant
+
+" A non-interpolated string
+syn cluster coffeeBasicString contains=@Spell,coffeeEscape
+" An interpolated string
+syn cluster coffeeInterpString contains=@coffeeBasicString,coffeeInterp
+
+" Regular strings
+syn region coffeeString start=/"/ skip=/\\\\\|\\"/ end=/"/
+\                       contains=@coffeeInterpString
+syn region coffeeString start=/'/ skip=/\\\\\|\\'/ end=/'/
+\                       contains=@coffeeBasicString
+hi def link coffeeString String
+
+" A integer, including a leading plus or minus
+syn match coffeeNumber /\i\@<![-+]\?\d\+\%([eE][+-]\?\d\+\)\?/ display
+" A hex number
+syn match coffeeNumber /\<0[xX]\x\+\>/ display
+hi def link coffeeNumber Number
+
+" A floating-point number, including a leading plus or minus
+syn match coffeeFloat /\i\@<![-+]\?\d*\.\@<!\.\d\+\%([eE][+-]\?\d\+\)\?/
+\                     display
+hi def link coffeeFloat Float
+
+" An error for reserved keywords
+if !exists("coffee_no_reserved_words_error")
+  syn match coffeeReservedError /\<\%(case\|default\|function\|var\|void\|with\|const\|let\|enum\|export\|import\|native\|__hasProp\|__extends\|__slice\|__bind\|__indexOf\)\>/
+  \                             display
+  hi def link coffeeReservedError Error
+endif
+
+" This is separate from `coffeeExtendedOp` since assignments require it.
+syn match coffeeAssignOp /:/ contained display
+hi def link coffeeAssignOp coffeeOperator
+
+" Strings used in string assignments, which can't have interpolations
+syn region coffeeAssignString start=/"/ skip=/\\\\\|\\"/ end=/"/ contained
+\                             contains=@coffeeBasicString
+syn region coffeeAssignString start=/'/ skip=/\\\\\|\\'/ end=/'/ contained
+\                             contains=@coffeeBasicString
+hi def link coffeeAssignString String
+
+" A normal object assignment
+syn match coffeeObjAssign /@\?\I\i*\s*:\@<!::\@!/
+\                         contains=@coffeeIdentifier,coffeeAssignOp
+hi def link coffeeObjAssign Identifier
+
+" An object-string assignment
+syn match coffeeObjStringAssign /\("\|'\)[^\1]*\1\s*;\@<!::\@!'\@!/
+\                               contains=coffeeAssignString,coffeeAssignOp
+" An object-integer assignment
+syn match coffeeObjNumberAssign /\d\+\%(\.\d\+\)\?\s*:\@<!::\@!/
+\                               contains=coffeeNumber,coffeeAssignOp
+
+syn keyword coffeeTodo TODO FIXME XXX contained
+hi def link coffeeTodo Todo
+
+syn match coffeeComment /#.*/ contains=@Spell,coffeeTodo
+hi def link coffeeComment Comment
+
+syn region coffeeBlockComment start=/####\@!/ end=/###/
+\                             contains=@Spell,coffeeTodo
+hi def link coffeeBlockComment coffeeComment
+
+" A comment in a heregex
+syn region coffeeHeregexComment start=/#/ end=/\ze\/\/\/\|$/ contained
+\                               contains=@Spell,coffeeTodo
+hi def link coffeeHeregexComment coffeeComment
+
+" Embedded JavaScript
+syn region coffeeEmbed matchgroup=coffeeEmbedDelim
+\                      start=/`/ skip=/\\\\\|\\`/ end=/`/
+\                      contains=@coffeeJS
+hi def link coffeeEmbedDelim Delimiter
+
+syn region coffeeInterp matchgroup=coffeeInterpDelim start=/#{/ end=/}/ contained
+\                       contains=@coffeeAll
+hi def link coffeeInterpDelim PreProc
+
+" A string escape sequence
+syn match coffeeEscape /\\\d\d\d\|\\x\x\{2\}\|\\u\x\{4\}\|\\./ contained display
+hi def link coffeeEscape SpecialChar
+
+" A regex -- must not follow a parenthesis, number, or identifier, and must not
+" be followed by a number
+syn region coffeeRegex start=/\%(\%()\|\i\@<!\d\)\s*\|\i\)\@<!\/=\@!\s\@!/
+\                      skip=/\[[^\]]\{-}\/[^\]]\{-}\]/
+\                      end=/\/[gimy]\{,4}\d\@!/
+\                      oneline contains=@coffeeBasicString
+hi def link coffeeRegex String
+
+" A heregex
+syn region coffeeHeregex start=/\/\/\// end=/\/\/\/[gimy]\{,4}/
+\                        contains=@coffeeInterpString,coffeeHeregexComment
+\                        fold
+hi def link coffeeHeregex coffeeRegex
+
+" Heredoc strings
+syn region coffeeHeredoc start=/"""/ end=/"""/ contains=@coffeeInterpString
+\                        fold
+syn region coffeeHeredoc start=/'''/ end=/'''/ contains=@coffeeBasicString
+\                        fold
+hi def link coffeeHeredoc String
+
+" An error for trailing whitespace, as long as the line isn't just whitespace
+if !exists("coffee_no_trailing_space_error")
+  syn match coffeeSpaceError /\S\@<=\s\+$/ display
+  hi def link coffeeSpaceError Error
+endif
+
+" An error for trailing semicolons, for help transitioning from JavaScript
+if !exists("coffee_no_trailing_semicolon_error")
+  syn match coffeeSemicolonError /;$/ display
+  hi def link coffeeSemicolonError Error
+endif
+
+" Ignore reserved words in dot accesses.
+syn match coffeeDotAccess /\.\@<!\.\s*\I\i*/he=s+1 contains=@coffeeIdentifier
+hi def link coffeeDotAccess coffeeExtendedOp
+
+" Ignore reserved words in prototype accesses.
+syn match coffeeProtoAccess /::\s*\I\i*/he=s+2 contains=@coffeeIdentifier
+hi def link coffeeProtoAccess coffeeExtendedOp
+
+" This is required for interpolations to work.
+syn region coffeeCurlies matchgroup=coffeeCurly start=/{/ end=/}/
+\                        contains=@coffeeAll
+syn region coffeeBrackets matchgroup=coffeeBracket start=/\[/ end=/\]/
+\                         contains=@coffeeAll
+syn region coffeeParens matchgroup=coffeeParen start=/(/ end=/)/
+\                       contains=@coffeeAll
+
+" These are highlighted the same as commas since they tend to go together.
+hi def link coffeeBlock coffeeSpecialOp
+hi def link coffeeBracket coffeeBlock
+hi def link coffeeCurly coffeeBlock
+hi def link coffeeParen coffeeBlock
+
+" This is used instead of TOP to keep things coffee-specific for good
+" embedding. `contained` groups aren't included.
+syn cluster coffeeAll contains=coffeeStatement,coffeeRepeat,coffeeConditional,
+\                              coffeeException,coffeeKeyword,coffeeOperator,
+\                              coffeeExtendedOp,coffeeSpecialOp,coffeeBoolean,
+\                              coffeeGlobal,coffeeSpecialVar,coffeeObject,
+\                              coffeeConstant,coffeeString,coffeeNumber,
+\                              coffeeFloat,coffeeReservedError,coffeeObjAssign,
+\                              coffeeObjStringAssign,coffeeObjNumberAssign,
+\                              coffeeComment,coffeeBlockComment,coffeeEmbed,
+\                              coffeeRegex,coffeeHeregex,coffeeHeredoc,
+\                              coffeeSpaceError,coffeeSemicolonError,
+\                              coffeeDotAccess,coffeeProtoAccess,
+\                              coffeeCurlies,coffeeBrackets,coffeeParens
+
+if !exists('b:current_syntax')
+  let b:current_syntax = 'coffee'
+endif
diff --git a/vim/syntax/eco.vim b/vim/syntax/eco.vim
new file mode 100755
index 0000000..485b356
--- /dev/null
+++ b/vim/syntax/eco.vim
@@ -0,0 +1,62 @@
+" Vim syntax file
+" Language:		eco
+" Maintainer:		Jay Adkisson
+" Mostly stolen from eruby.vim
+
+if !exists("g:eco_default_subtype")
+  let g:eco_default_subtype = "html"
+endif
+
+if !exists("b:eco_subtype")
+  let s:lines = getline(1)."\n".getline(2)."\n".getline(3)."\n".getline(4)."\n".getline(5)."\n".getline("$")
+  let b:eco_subtype = matchstr(s:lines,'eco_subtype=\zs\w\+')
+  if b:eco_subtype == ''
+    let b:eco_subtype = matchstr(substitute(expand("%:t"),'\c\%(\.eco\)\+$','',''),'\.\zs\w\+$')
+  endif
+  if b:eco_subtype == 'rhtml'
+    let b:eco_subtype = 'html'
+  elseif b:eco_subtype == 'jst'
+    let b:eco_subtype = 'html'
+  elseif b:eco_subtype == 'rb'
+    let b:eco_subtype = 'ruby'
+  elseif b:eco_subtype == 'yml'
+    let b:eco_subtype = 'yaml'
+  elseif b:eco_subtype == 'js' || b:eco_subtype == 'json'
+    let b:eco_subtype = 'javascript'
+  elseif b:eco_subtype == 'txt'
+    " Conventional; not a real file type
+    let b:eco_subtype = 'text'
+  elseif b:eco_subtype == ''
+    if exists('b:current_syntax') && b:current_syntax != ''
+      let b:eco_subtype = b:current_syntax
+    else
+      let b:eco_subtype = g:eco_default_subtype
+    endif
+  endif
+endif
+
+if exists("b:eco_subtype") && b:eco_subtype != '' && b:eco_subtype != 'eco'
+  exec "runtime! syntax/".b:eco_subtype.".vim"
+  syn include @coffeeTop syntax/coffee.vim
+endif
+
+syn cluster ecoRegions contains=ecoBlock,ecoExpression,ecoComment
+
+syn region ecoBlock      matchgroup=ecoDelimiter start=/<%/      end=/%>/ contains=@coffeeTop containedin=ALLBUT,@ecoRegions keepend
+syn region ecoExpression matchgroup=ecoDelimiter start=/<%[=\-]/ end=/%>/ contains=@coffeeTop containedin=ALLBUT,@ecoRegions keepend
+syn region ecoComment    matchgroup=ecoComment   start=/<%#/     end=/%>/ contains=@coffeeTodo,@Spell containedin=ALLBUT,@ecoRegions keepend
+
+" eco features not in coffeescript proper
+syn keyword ecoEnd end containedin=@ecoRegions
+syn match ecoIndentColon /\s+\w+:/ containedin=@ecoRegions
+
+" Define the default highlighting.
+
+hi def link ecoDelimiter    Delimiter
+hi def link ecoComment      Comment
+hi def link ecoEnd          coffeeConditional
+hi def link ecoIndentColon  None
+
+let b:current_syntax = 'eco'
+
+" vim: nowrap sw=2 sts=2 ts=8: