vim-polyglot/indent/slim.vim

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" Vim indent file
" Language: Slim
if exists("b:did_indent")
finish
endif
runtime! indent/ruby.vim
unlet! b:did_indent
let b:did_indent = 1
setlocal autoindent sw=2 et
setlocal indentexpr=GetSlimIndent()
setlocal indentkeys=o,O,*<Return>,},],0),!^F,=end,=else,=elsif,=rescue,=ensure,=when
" Only define the function once.
if exists("*GetSlimIndent")
finish
endif
let s:attributes = '\%({.\{-\}}\|\[.\{-\}\]\)'
let s:tag = '\%([%.#][[:alnum:]_-]\+\|'.s:attributes.'\)*[<>]*'
if !exists('g:haml_self_closing_tags')
let g:haml_self_closing_tags = 'meta|link|img|hr|br'
endif
function! GetSlimIndent()
let lnum = prevnonblank(v:lnum-1)
if lnum == 0
return 0
endif
let line = substitute(getline(lnum),'\s\+$','','')
let cline = substitute(substitute(getline(v:lnum),'\s\+$','',''),'^\s\+','','')
let lastcol = strlen(line)
let line = substitute(line,'^\s\+','','')
let indent = indent(lnum)
let cindent = indent(v:lnum)
if cline =~# '\v^-\s*%(elsif|else|when)>'
let indent = cindent < indent ? cindent : indent - &sw
endif
let increase = indent + &sw
if indent == indent(lnum)
let indent = cindent <= indent ? -1 : increase
endif
let group = synIDattr(synID(lnum,lastcol,1),'name')
if line =~ '^doctype'
return indent
elseif line =~ '^/\%(\[[^]]*\]\)\=$'
return increase
elseif line =~ '^[\.#]'
return increase
elseif line =~? '^div'
return increase
elseif group == 'hamlFilter'
return increase
elseif line =~ '^'.s:tag.'[&!]\=[=~-]\s*\%(\%(if\|else\|elsif\|unless\|case\|when\|while\|until\|for\|begin\|module\|class\|def\)\>\%(.*\<end\>\)\@!\|.*do\%(\s*|[^|]*|\)\=\s*$\)'
return increase
elseif line =~ '^'.s:tag.'[&!]\=[=~-].*,\s*$'
return increase
elseif line == '-#'
return increase
elseif group =~? '\v^(hamlSelfCloser)$' || line =~? '^\v('.g:haml_self_closing_tags.')>'
return indent
elseif group =~? '\v^(hamlTag|hamlAttributesDelimiter|hamlObjectDelimiter|hamlClass|hamlId|htmlTagName|htmlSpecialTagName)$'
return increase
elseif synIDattr(synID(v:lnum,1,1),'name') ==? 'hamlRubyFilter'
return GetRubyIndent()
else
return indent
endif
endfunction
" vim:set sw=2: