Change stylus provider, closes #642

indent/stylus.vim

@@ -4,21 +4,21 @@ endif
 
 " Vim indent file
 " Language: Stylus
-" Maintainer: Marc Harter
-" Last Change: 2010 May 21
+" Maintainer: Ilia Loginov
+" Last Change: 2018 Jan 19
 " Based On: sass.vim from Tim Pope
-"
+
 if exists("b:did_indent")
   finish
 endif
-unlet! b:did_indent
 let b:did_indent = 1
 
 setlocal indentexpr=GetStylusIndent()
-setlocal indentkeys=o,O,*<Return>,},],0),!^F
+setlocal autoindent nolisp nosmartindent
+setlocal indentkeys=o,O,*<Return>,0),!^F
 setlocal formatoptions+=r
 
-if exists("*GetStylusIndent")  " only define once
+if exists('*GetStylusIndent')
   finish
 endif
 
@@ -43,45 +43,7 @@ function s:prevnonblanknoncomment(lnum)
   return lnum
 endfunction
 
-function s:count_braces(lnum, count_open)
-  let n_open = 0
-  let n_close = 0
-  let line = getline(a:lnum)
-  let pattern = '[{}]'
-  let i = match(line, pattern)
-  while i != -1
-    if synIDattr(synID(a:lnum, i + 1, 0), 'name') !~ 'css\%(Comment\|StringQ\{1,2}\)'
-      if line[i] == '{'
-        let n_open += 1
-      elseif line[i] == '}'
-        if n_open > 0
-          let n_open -= 1
-        else
-          let n_close += 1
-        endif
-      endif
-    endif
-    let i = match(line, pattern, i + 1)
-  endwhile
-  return a:count_open ? n_open : n_close
-endfunction
-
-" function CheckCSSIndent()
-"   let line = getline(v:lnum)
-"   if line =~ '^\s*\*'
-"     return cindent(v:lnum)
-"   endif
-" 
-"   let pnum = s:prevnonblanknoncomment(v:lnum - 1)
-"   if pnum == 0
-"     return 0
-"   endif
-" 
-"   return indent(pnum) + s:count_braces(pnum, 1) * &sw
-"         \ - s:count_braces(v:lnum, 0) * &sw
-" endfunction
-
-function! GetStylusIndent()
+function GetStylusIndent()
   let line = getline(v:lnum)
   if line =~ '^\s*\*'
     return cindent(v:lnum)
@@ -92,42 +54,41 @@ function! GetStylusIndent()
     return 0
   endif
 
-  let lnum     = prevnonblank(v:lnum-1)
+  let lnum = prevnonblank(v:lnum-1)
   if lnum == 0
     return 0
   endif
 
   let pline = getline(pnum)
 
-  if pline =~ '[}{]'
-    return indent(pnum) + s:count_braces(pnum, 1) * &sw - s:count_braces(v:lnum, 0) * &sw
-  endif
-
-  let line     = substitute(getline(lnum),'[\s()]\+$','','')  " get last line strip ending whitespace
-  let cline    = substitute(substitute(getline(v:lnum),'\s\+$','',''),'^\s\+','','')  " get current line, trimmed
-  let lastcol  = strlen(line)  " get last col in prev line
-  let line     = substitute(line,'^\s\+','','')  " then remove preceeding whitespace
-  let indent   = indent(lnum)  " get indent on prev line
-  let cindent  = indent(v:lnum)  " get indent on current line
-  let increase = indent + &sw  " increase indent by the shift width
+  " Get last line strip ending whitespace
+  let line = substitute(getline(lnum),'[\s()]\+$','','')
+  " Get current line, trimmed
+  let cline    = substitute(substitute(getline(v:lnum),'\s\+$','',''),'^\s\+','','')
+  " Get last col in prev line
+  let lastcol  = strlen(line)
+  " Then remove preceeding whitespace
+  let line     = substitute(line,'^\s\+','','')
+  " Get indent on prev line
+  let indent   = indent(lnum)
+  " Get indent on current line
+  let cindent  = indent(v:lnum)
+  " Increase indent by the shift width
+  let increase = indent + &sw
   if indent   == indent(lnum)
     let indent = cindent <= indent ? indent : increase
   endif
 
-  let group = synIDattr(synID(lnum,lastcol,1),'name')
+  let group = synIDattr(synID(lnum, cindent + 1, 1), 'name')
 
-  " for debugging only
-  echo group
-
-  " if group !~? 'css.*' && line =~? ')\s*$' " match user functions
-  "   return increase
-  if group =~? '\v^%(cssTagName|cssClassName|cssIdentifier|cssSelectorOp|cssSelectorOp2|cssBraces|cssAttributeSelector|cssPseudo|stylusId|stylusClass)$'
+  if group =~ 'stylusSelector\w*'
     return increase
-  elseif (group == 'stylusUserFunction') && (indent(lnum) == '0') " mixin definition
+  elseif group =~ 'stylusAtRule\(Viewport\|Page\|Supports\|Document\|Font\|Keyframes\)\w*'
+    return increase
+  " Mixin or function definition
+  elseif group =~ 'stylusFunction\w*' && indent(lnum) == 0
     return increase
   else
     return indent
   endif
 endfunction
-
-" vim:set sw=2;