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" Vim indent script for HTML " General: "{{{ " File: html.vim (Vimscript #2075) " Author: Andy Wokula <anwoku@yahoo.de> " Last Change: 2013 Jun 12 " Rev Days: 13 " Version: 0.9 " Vim Version: Vim7 " Description: " Improved version of the distributed html indent script, faster on a " range of lines. " " Credits: " indent/html.vim (2006 Jun 05) from J. Zellner " indent/css.vim (2006 Dec 20) from N. Weibull " " History: " 2012 Oct 21 (v0.9) added support for shiftwidth() " 2011 Sep 09 (v0.8) added HTML5 tags (thx to J. Zuckerman) " 2008 Apr 28 (v0.6) revised customization " 2008 Mar 09 (v0.5) fixed 'indk' issue (thx to C.J. Robinson) " }}} " Init Folklore, check user settings (2nd time ++) "{{{ if exists("b:did_indent") finish endif let b:did_indent = 1 setlocal indentexpr=HtmlIndent() setlocal indentkeys=o,O,<Return>,<>>,{,},!^F let b:indent = {"lnum": -1} let b:undo_indent = "set inde< indk<| unlet b:indent" " Load Once: if exists("*HtmlIndent") call HtmlIndent_CheckUserSettings() finish endif " Patch 7.3.694 if exists('*shiftwidth') let s:ShiftWidth = function('shiftwidth') else func! s:ShiftWidth() return &shiftwidth endfunc endif let s:cpo_save = &cpo set cpo-=C "}}} func! HtmlIndent_CheckUserSettings() "{{{ if exists("g:html_indent_inctags") call s:AddITags(split(g:html_indent_inctags, ",")) endif if exists("g:html_indent_autotags") call s:RemoveITags(split(g:html_indent_autotags, ",")) endif let indone = {"zero": 0 \,"auto": "indent(prevnonblank(v:lnum-1))" \,"inc": "b:indent.blocktagind + s:ShiftWidth()"} if exists("g:html_indent_script1") let s:js1indent = get(indone, g:html_indent_script1, indone.zero) endif if exists("g:html_indent_style1") let s:css1indent = get(indone, g:html_indent_style1, indone.zero) endif endfunc "}}} " Init Script Vars "{{{ let s:usestate = 1 let s:css1indent = 0 let s:js1indent = 0 " not to be changed: let s:endtags = [0,0,0,0,0,0,0,0] " some places unused let s:newstate = {} let s:countonly = 0 "}}} func! s:AddITags(taglist) "{{{ for itag in a:taglist let s:indent_tags[itag] = 1 let s:indent_tags['/'.itag] = -1 endfor endfunc "}}} func! s:AddBlockTag(tag, id, ...) "{{{ if !(a:id >= 2 && a:id < 2+len(s:endtags)) return endif let s:indent_tags[a:tag] = a:id if a:0 == 0 let s:indent_tags['/'.a:tag] = -a:id let s:endtags[a:id-2] = "</".a:tag.">" else let s:indent_tags[a:1] = -a:id let s:endtags[a:id-2] = a:1 endif endfunc "}}} func! s:RemoveITags(taglist) "{{{ " remove itags (protect blocktags from being removed) for itag in a:taglist if !has_key(s:indent_tags, itag) || s:indent_tags[itag] != 1 continue endif unlet s:indent_tags[itag] if itag =~ '^\w\+$' unlet s:indent_tags["/".itag] endif endfor endfunc "}}} " Add Indent Tags: {{{ if !exists("s:indent_tags") let s:indent_tags = {} endif " old tags: call s:AddITags(['a', 'abbr', 'acronym', 'address', 'b', 'bdo', 'big', \ 'blockquote', 'button', 'caption', 'center', 'cite', 'code', 'colgroup', \ 'del', 'dfn', 'dir', 'div', 'dl', 'em', 'fieldset', 'font', 'form', \ 'frameset', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'i', 'iframe', 'ins', 'kbd', \ 'label', 'legend', 'map', 'menu', 'noframes', 'noscript', 'object', 'ol', \ 'optgroup', 'q', 's', 'samp', 'select', 'small', 'span', 'strong', 'sub', \ 'sup', 'table', 'textarea', 'title', 'tt', 'u', 'ul', 'var', 'th', 'td', \ 'tr', 'tfoot', 'thead']) " tags added 2011 Sep 09 (especially HTML5 tags): call s:AddITags(['area', 'article', 'aside', 'audio', 'bdi', 'canvas', \ 'command', 'datalist', 'details', 'embed', 'figure', 'footer', \ 'header', 'group', 'keygen', 'mark', 'math', 'meter', 'nav', 'output', \ 'progress', 'ruby', 'section', 'svg', 'texture', 'time', 'video', \ 'wbr', 'text']) "}}} " Add Block Tags: contain alien content "{{{ call s:AddBlockTag('pre', 2) call s:AddBlockTag('script', 3) call s:AddBlockTag('style', 4) call s:AddBlockTag('<!--', 5, '-->') "}}} func! s:CountITags(...) "{{{ " relative indent steps for current line [unit &sw]: let s:curind = 0 " relative indent steps for next line [unit &sw]: let s:nextrel = 0 if a:0==0 let s:block = s:newstate.block let tmpline = substitute(s:curline, '<\zs\/\=\w\+\>\|<!--\|-->', '\=s:CheckTag(submatch(0))', 'g') if s:block == 3 let s:newstate.scripttype = s:GetScriptType(matchstr(tmpline, '\C.*<SCRIPT\>\zs[^>]*')) endif let s:newstate.block = s:block else let s:block = 0 " assume starting outside of a block let s:countonly = 1 " don't change state let tmpline = substitute(s:altline, '<\zs\/\=\w\+\>\|<!--\|-->', '\=s:CheckTag(submatch(0))', 'g') let s:countonly = 0 endif endfunc "}}} func! s:CheckTag(itag) "{{{ " "tag" or "/tag" or "<!--" or "-->" let ind = get(s:indent_tags, a:itag) if ind == -1 " closing tag if s:block != 0 " ignore itag within a block return "foo" endif if s:nextrel == 0 let s:curind -= 1 else let s:nextrel -= 1 endif " if s:curind >= 1 " let s:curind -= 1 " else " let s:nextrel -= 1 " endif elseif ind == 1 " opening tag if s:block != 0 return "foo" endif let s:nextrel += 1 elseif ind != 0 " block-tag (opening or closing) return s:Blocktag(a:itag, ind) endif " else ind==0 (other tag found): keep indent return "foo" " no matter endfunc "}}} func! s:Blocktag(blocktag, ind) "{{{ if a:ind > 0 " a block starts here if s:block != 0 " already in a block (nesting) - ignore " especially ignore comments after other blocktags return "foo" endif let s:block = a:ind " block type if s:countonly return "foo" endif let s:newstate.blocklnr = v:lnum " save allover indent for the endtag let s:newstate.blocktagind = b:indent.baseindent + (s:nextrel + s:curind) * s:ShiftWidth() if a:ind == 3 return "SCRIPT" " all except this must be lowercase " line is to be checked again for the type attribute endif else let s:block = 0 " we get here if starting and closing block-tag on same line endif return "foo" endfunc "}}} func! s:GetScriptType(str) "{{{ if a:str == "" || a:str =~ "java" return "javascript" else return "" endif endfunc "}}} func! s:FreshState(lnum) "{{{ " Look back in the file (lines 1 to a:lnum-1) to calc a state for line " a:lnum. A state is to know ALL relevant details about the lines " 1..a:lnum-1, initial calculating (here!) can be slow, but updating is " fast (incremental). " State: " lnum last indented line == prevnonblank(a:lnum - 1) " block = 0 a:lnum located within special tag: 0:none, 2:<pre>, " 3:<script>, 4:<style>, 5:<!-- " baseindent use this indent for line a:lnum as a start - kind of " autoindent (if block==0) " scripttype = '' type attribute of a script tag (if block==3) " blocktagind indent for current opening (get) and closing (set) " blocktag (if block!=0) " blocklnr lnum of starting blocktag (if block!=0) " inattr line {lnum} starts with attributes of a tag let state = {} let state.lnum = prevnonblank(a:lnum - 1) let state.scripttype = "" let state.blocktagind = -1 let state.block = 0 let state.baseindent = 0 let state.blocklnr = 0 let state.inattr = 0 if state.lnum == 0 return state endif " Heuristic: " remember startline state.lnum " look back for <pre, </pre, <script, </script, <style, </style tags " remember stopline " if opening tag found, " assume a:lnum within block " else " look back in result range (stopline, startline) for comment " \ delimiters (<!--, -->) " if comment opener found, " assume a:lnum within comment " else " assume usual html for a:lnum " if a:lnum-1 has a closing comment " look back to get indent of comment opener " FI " look back for blocktag call cursor(a:lnum, 1) let [stopline, stopcol] = searchpos('\c<\zs\/\=\%(pre\>\|script\>\|style\>\)', "bW") " fugly ... why isn't there searchstr() let tagline = tolower(getline(stopline)) let blocktag = matchstr(tagline, '\/\=\%(pre\>\|script\>\|style\>\)', stopcol-1) if stopline > 0 && blocktag[0] != "/" " opening tag found, assume a:lnum within block let state.block = s:indent_tags[blocktag] if state.block == 3 let state.scripttype = s:GetScriptType(matchstr(tagline, '\>[^>]*', stopcol)) endif let state.blocklnr = stopline " check preceding tags in the line: let s:altline = tagline[: stopcol-2] call s:CountITags(1) let state.blocktagind = indent(stopline) + (s:curind + s:nextrel) * s:ShiftWidth() return state elseif stopline == state.lnum " handle special case: previous line (= state.lnum) contains a " closing blocktag which is preceded by line-noise; " blocktag == "/..." let swendtag = match(tagline, '^\s*</') >= 0 if !swendtag let [bline, bcol] = searchpos('<'.blocktag[1:].'\>', "bW") let s:altline = tolower(getline(bline)[: bcol-2]) call s:CountITags(1) let state.baseindent = indent(bline) + (s:nextrel+s:curline) * s:ShiftWidth() return state endif endif " else look back for comment call cursor(a:lnum, 1) let [comline, comcol, found] = searchpos('\(<!--\)\|-->', 'bpW', stopline) if found == 2 " comment opener found, assume a:lnum within comment let state.block = 5 let state.blocklnr = comline " check preceding tags in the line: let s:altline = tolower(getline(comline)[: comcol-2]) call s:CountITags(1) let state.blocktagind = indent(comline) + (s:curind + s:nextrel) * s:ShiftWidth() return state endif " else within usual html let s:altline = tolower(getline(state.lnum)) " check a:lnum-1 for closing comment (we need indent from the opening line) let comcol = stridx(s:altline, '-->') if comcol >= 0 call cursor(state.lnum, comcol+1) let [comline, comcol] = searchpos('<!--', 'bW') if comline == state.lnum let s:altline = s:altline[: comcol-2] else let s:altline = tolower(getline(comline)[: comcol-2]) endif call s:CountITags(1) let state.baseindent = indent(comline) + (s:nextrel+s:curline) * s:ShiftWidth() return state " TODO check tags that follow "-->" endif " else no comments call s:CountITags(1) let state.baseindent = indent(state.lnum) + s:nextrel * s:ShiftWidth() " line starts with end tag let swendtag = match(s:altline, '^\s*</') >= 0 if !swendtag let state.baseindent += s:curind * s:ShiftWidth() endif return state endfunc "}}} func! s:Alien2() "{{{ " <pre> block return -1 endfunc "}}} func! s:Alien3() "{{{ " <script> javascript if prevnonblank(v:lnum-1) == b:indent.blocklnr " indent for the first line after <script> return eval(s:js1indent) endif if b:indent.scripttype == "javascript" return cindent(v:lnum) else return -1 endif endfunc "}}} func! s:Alien4() "{{{ " <style> if prevnonblank(v:lnum-1) == b:indent.blocklnr " indent for first content line return eval(s:css1indent) endif return s:CSSIndent() endfunc func! s:CSSIndent() "{{{ " adopted $VIMRUNTIME/indent/css.vim if getline(v:lnum) =~ '^\s*[*}]' return cindent(v:lnum) endif let minline = b:indent.blocklnr let pnum = s:css_prevnoncomment(v:lnum - 1, minline) if pnum <= minline " < is to catch errors " indent for first content line after comments return eval(s:css1indent) endif let ind = indent(pnum) + s:css_countbraces(pnum, 1) * s:ShiftWidth() let pline = getline(pnum) if pline =~ '}\s*$' let ind -= (s:css_countbraces(pnum, 0) - (pline =~ '^\s*}')) * s:ShiftWidth() endif return ind endfunc "}}} func! s:css_prevnoncomment(lnum, stopline) "{{{ " caller starts from a line a:lnum-1 that is not a comment let lnum = prevnonblank(a:lnum) let ccol = match(getline(lnum), '\*/') if ccol < 0 return lnum endif call cursor(lnum, ccol+1) let lnum = search('/\*', 'bW', a:stopline) if indent(".") == virtcol(".")-1 return prevnonblank(lnum-1) else return lnum endif endfunc "}}} func! s:css_countbraces(lnum, count_open) "{{{ let brs = substitute(getline(a:lnum),'[''"].\{-}[''"]\|/\*.\{-}\*/\|/\*.*$\|[^{}]','','g') let n_open = 0 let n_close = 0 for brace in split(brs, '\zs') if brace == "{" let n_open += 1 elseif brace == "}" if n_open > 0 let n_open -= 1 else let n_close += 1 endif endif endfor return a:count_open ? n_open : n_close endfunc "}}} "}}} func! s:Alien5() "{{{ " <!-- --> return -1 endfunc "}}} func! HtmlIndent() "{{{ let s:curline = tolower(getline(v:lnum)) let indentunit = s:ShiftWidth() let s:newstate = {} let s:newstate.lnum = v:lnum " does the line start with a closing tag? let swendtag = match(s:curline, '^\s*</') >= 0 if prevnonblank(v:lnum-1) == b:indent.lnum && s:usestate " use state (continue from previous line) else " start over (know nothing) let b:indent = s:FreshState(v:lnum) endif if b:indent.block >= 2 " within block let endtag = s:endtags[b:indent.block-2] let blockend = stridx(s:curline, endtag) if blockend >= 0 " block ends here let s:newstate.block = 0 " calc indent for REST OF LINE (may start more blocks): let s:curline = strpart(s:curline, blockend+strlen(endtag)) call s:CountITags() if swendtag && b:indent.block != 5 let indent = b:indent.blocktagind + s:curind * indentunit let s:newstate.baseindent = indent + s:nextrel * indentunit else let indent = s:Alien{b:indent.block}() let s:newstate.baseindent = b:indent.blocktagind + s:nextrel * indentunit endif call extend(b:indent, s:newstate, "force") return indent else " block continues " indent this line with alien method let indent = s:Alien{b:indent.block}() call extend(b:indent, s:newstate, "force") return indent endif else " not within a block - within usual html " if < 2 then always 0 let s:newstate.block = b:indent.block call s:CountITags() if swendtag let indent = b:indent.baseindent + s:curind * indentunit let s:newstate.baseindent = indent + s:nextrel * indentunit else let indent = b:indent.baseindent let s:newstate.baseindent = indent + (s:curind + s:nextrel) * indentunit endif call extend(b:indent, s:newstate, "force") return indent endif endfunc "}}} " check user settings (first time), clear cpo, Modeline: {{{1 " DEBUG: com! -nargs=* IndHtmlLocal <args> call HtmlIndent_CheckUserSettings() let &cpo = s:cpo_save unlet s:cpo_save " vim:set fdm=marker ts=8: