Add livescript, closes #135

compiler/ls.vim

@@ -0,0 +1,78 @@
+if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'livescript') == -1
+  
+" Language:    LiveScript
+" Maintainer:  George Zahariev
+" URL:         http://github.com/gkz/vim-ls
+" License:     WTFPL
+
+if exists('current_compiler')
+  finish
+endif
+
+let current_compiler = 'ls'
+" Pattern to check if livescript is the compiler
+let s:pat = '^' . current_compiler
+
+" Path to LiveScript compiler
+if !exists('livescript_compiler')
+  let livescript_compiler = 'lsc'
+endif
+
+if !exists('livescript_make_options')
+  let livescript_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 g:livescript_compiler . ' -c ' . g:livescript_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=ls
+call s:SetMakePrg()
+
+CompilerSet errorformat=%EFailed\ at:\ %f,
+                       \%ECan't\ find:\ %f,
+                       \%CSyntaxError:\ %m\ on\ line\ %l,
+                       \%CError:\ Parse\ error\ on\ line\ %l:\ %m,
+                       \%C,%C\ %.%#
+
+" Compile the current file.
+command! -bang -bar -nargs=* LiveScriptMake make<bang> <args>
+
+" Set `makeprg` on rename since we embed the filename in the setting.
+augroup LiveScriptUpdateMakePrg
+  autocmd!
+
+  " Update `makeprg` if livescript is still the compiler, else stop running this
+  " function.
+  function! s:UpdateMakePrg()
+    if !s:SetMakePrg()
+      autocmd! LiveScriptUpdateMakePrg
+    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
+
+endif