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" Vim indent file
" Language: Stylus
" Maintainer: Marc Harter
" Last Change: 2010 May 21
" 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 formatoptions+=r
if exists("*GetStylusIndent") " only define once
finish
endif
function s:prevnonblanknoncomment(lnum)
let lnum = a:lnum
while lnum > 1
let lnum = prevnonblank(lnum)
let line = getline(lnum)
if line =~ '\*/'
while lnum > 1 && line !~ '/\*'
let lnum -= 1
endwhile
if line =~ '^\s*/\*'
let lnum -= 1
else
break
endif
else
break
endif
endwhile
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()
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
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
if indent == indent(lnum)
let indent = cindent <= indent ? indent : increase
endif
let group = synIDattr(synID(lnum,lastcol,1),'name')
" for debugging only
echo group
" if group !~? 'css.*' && line =~? ')\s*$' " match user functions
" return increase
if group =~? '\v^%(cssTagName|cssClassName|cssIdentifier|cssSelectorOp|cssSelectorOp2|cssBraces|cssAttributeSelector|cssPseudo|stylusId|stylusClass)$'
return increase
elseif (group == 'stylusUserFunction') && (indent(lnum) == '0') " mixin definition
return increase
else
return indent
endif
endfunction
" vim:set sw=2;