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+" Description: html indenter
+" Author: Johannes Zellner <johannes@zellner.org>
+" Last Change: Tue, 27 Apr 2004 10:28:39 CEST
+" Globals: g:html_indent_tags -- indenting tags
+" g:html_indent_strict -- inhibit 'O O' elements
+" g:html_indent_strict_table -- inhibit 'O -' elements
+
+" Only load this indent file when no other was loaded.
+if exists("b:did_indent")
+ finish
+endif
+let b:did_indent = 1
+
+
+" [-- local settings (must come before aborting the script) --]
+setlocal indentexpr=HtmlIndentGet(v:lnum)
+setlocal indentkeys=o,O,*<Return>,<>>,<bs>,{,}
+
+
+if exists('g:html_indent_tags')
+ unlet g:html_indent_tags
+endif
+
+" [-- helper function to assemble tag list --]
+fun! <SID>HtmlIndentPush(tag)
+ if exists('g:html_indent_tags')
+ let g:html_indent_tags = g:html_indent_tags.'\|'.a:tag
+ else
+ let g:html_indent_tags = a:tag
+ endif
+endfun
+
+
+" [-- <ELEMENT ? - - ...> --]
+call <SID>HtmlIndentPush('a')
+call <SID>HtmlIndentPush('abbr')
+call <SID>HtmlIndentPush('acronym')
+call <SID>HtmlIndentPush('address')
+call <SID>HtmlIndentPush('b')
+call <SID>HtmlIndentPush('bdo')
+call <SID>HtmlIndentPush('big')
+call <SID>HtmlIndentPush('blockquote')
+call <SID>HtmlIndentPush('button')
+call <SID>HtmlIndentPush('caption')
+call <SID>HtmlIndentPush('center')
+call <SID>HtmlIndentPush('cite')
+call <SID>HtmlIndentPush('code')
+call <SID>HtmlIndentPush('colgroup')
+call <SID>HtmlIndentPush('del')
+call <SID>HtmlIndentPush('dfn')
+call <SID>HtmlIndentPush('dir')
+call <SID>HtmlIndentPush('div')
+call <SID>HtmlIndentPush('dl')
+call <SID>HtmlIndentPush('em')
+call <SID>HtmlIndentPush('fieldset')
+call <SID>HtmlIndentPush('font')
+call <SID>HtmlIndentPush('form')
+call <SID>HtmlIndentPush('frameset')
+call <SID>HtmlIndentPush('h1')
+call <SID>HtmlIndentPush('h2')
+call <SID>HtmlIndentPush('h3')
+call <SID>HtmlIndentPush('h4')
+call <SID>HtmlIndentPush('h5')
+call <SID>HtmlIndentPush('h6')
+call <SID>HtmlIndentPush('i')
+call <SID>HtmlIndentPush('iframe')
+call <SID>HtmlIndentPush('ins')
+call <SID>HtmlIndentPush('kbd')
+call <SID>HtmlIndentPush('label')
+call <SID>HtmlIndentPush('legend')
+call <SID>HtmlIndentPush('map')
+call <SID>HtmlIndentPush('menu')
+call <SID>HtmlIndentPush('noframes')
+call <SID>HtmlIndentPush('noscript')
+call <SID>HtmlIndentPush('object')
+call <SID>HtmlIndentPush('ol')
+call <SID>HtmlIndentPush('optgroup')
+" call <SID>HtmlIndentPush('pre')
+call <SID>HtmlIndentPush('q')
+call <SID>HtmlIndentPush('s')
+call <SID>HtmlIndentPush('samp')
+call <SID>HtmlIndentPush('script')
+call <SID>HtmlIndentPush('select')
+call <SID>HtmlIndentPush('small')
+call <SID>HtmlIndentPush('span')
+call <SID>HtmlIndentPush('strong')
+call <SID>HtmlIndentPush('style')
+call <SID>HtmlIndentPush('sub')
+call <SID>HtmlIndentPush('sup')
+call <SID>HtmlIndentPush('table')
+call <SID>HtmlIndentPush('textarea')
+call <SID>HtmlIndentPush('title')
+call <SID>HtmlIndentPush('tt')
+call <SID>HtmlIndentPush('u')
+call <SID>HtmlIndentPush('ul')
+call <SID>HtmlIndentPush('var')
+
+
+" [-- <ELEMENT ? O O ...> --]
+if !exists('g:html_indent_strict')
+ call <SID>HtmlIndentPush('body')
+ call <SID>HtmlIndentPush('head')
+ call <SID>HtmlIndentPush('html')
+ call <SID>HtmlIndentPush('tbody')
+endif
+
+
+" [-- <ELEMENT ? O - ...> --]
+if !exists('g:html_indent_strict_table')
+ call <SID>HtmlIndentPush('th')
+ call <SID>HtmlIndentPush('td')
+ call <SID>HtmlIndentPush('tr')
+ call <SID>HtmlIndentPush('tfoot')
+ call <SID>HtmlIndentPush('thead')
+endif
+
+delfun <SID>HtmlIndentPush
+
+set cpo-=C
+
+" [-- count indent-increasing tags of line a:lnum --]
+fun! <SID>HtmlIndentOpen(lnum, pattern)
+ let s = substitute('x'.getline(a:lnum),
+ \ '.\{-}\(\(<\)\('.a:pattern.'\)\>\)', "\1", 'g')
+ let s = substitute(s, "[^\1].*$", '', '')
+ return strlen(s)
+endfun
+
+" [-- count indent-decreasing tags of line a:lnum --]
+fun! <SID>HtmlIndentClose(lnum, pattern)
+ let s = substitute('x'.getline(a:lnum),
+ \ '.\{-}\(\(<\)/\('.a:pattern.'\)\>>\)', "\1", 'g')
+ let s = substitute(s, "[^\1].*$", '', '')
+ return strlen(s)
+endfun
+
+" [-- count indent-increasing '{' of (java|css) line a:lnum --]
+fun! <SID>HtmlIndentOpenAlt(lnum)
+ return strlen(substitute(getline(a:lnum), '[^{]\+', '', 'g'))
+endfun
+
+" [-- count indent-decreasing '}' of (java|css) line a:lnum --]
+fun! <SID>HtmlIndentCloseAlt(lnum)
+ return strlen(substitute(getline(a:lnum), '[^}]\+', '', 'g'))
+endfun
+
+" [-- return the sum of indents respecting the syntax of a:lnum --]
+fun! <SID>HtmlIndentSum(lnum, style)
+ if a:style == match(getline(a:lnum), '^\s*</')
+ if a:style == match(getline(a:lnum), '^\s*</\<\('.g:html_indent_tags.'\)\>')
+ let open = <SID>HtmlIndentOpen(a:lnum, g:html_indent_tags)
+ let close = <SID>HtmlIndentClose(a:lnum, g:html_indent_tags)
+ if 0 != open || 0 != close
+ return open - close
+ endif
+ endif
+ endif
+ if '' != &syntax &&
+ \ synIDattr(synID(a:lnum, 1, 1), 'name') =~ '\(css\|java\).*' &&
+ \ synIDattr(synID(a:lnum, strlen(getline(a:lnum)), 1), 'name')
+ \ =~ '\(css\|java\).*'
+ if a:style == match(getline(a:lnum), '^\s*}')
+ return <SID>HtmlIndentOpenAlt(a:lnum) - <SID>HtmlIndentCloseAlt(a:lnum)
+ endif
+ endif
+ return 0
+endfun
+
+fun! HtmlIndentGet(lnum)
+ " Find a non-empty line above the current line.
+ let lnum = prevnonblank(a:lnum - 1)
+
+ " Hit the start of the file, use zero indent.
+ if lnum == 0
+ return 0
+ endif
+
+ let restore_ic = &ic
+ setlocal ic " ignore case
+
+ " [-- special handling for <pre>: no indenting --]
+ if getline(a:lnum) =~ '\c</pre>'
+ \ || 0 < searchpair('\c<pre>', '', '\c</pre>', 'nWb')
+ \ || 0 < searchpair('\c<pre>', '', '\c</pre>', 'nW')
+ " we're in a line with </pre> or inside <pre> ... </pre>
+ return -1
+ endif
+
+ " [-- special handling for <javascript>: use cindent --]
+ let js = '<script.*type\s*=\s*.*java'
+ if 0 < searchpair(js, '', '</script>', 'nWb')
+ \ || 0 < searchpair(js, '', '</script>', 'nW')
+ " we're inside javascript
+ if getline(lnum) !~ js && getline(a:lnum) != '</script>'
+ return cindent(a:lnum)
+ endif
+ endif
+
+ if getline(lnum) =~ '\c</pre>'
+ " line before the current line a:lnum contains
+ " a closing </pre>. --> search for line before
+ " starting <pre> to restore the indent.
+ let preline = prevnonblank(search('\c<pre>', 'bW') - 1)
+ if preline > 0
+ return indent(preline)
+ endif
+ endif
+
+ let ind = <SID>HtmlIndentSum(lnum, -1)
+ let ind = ind + <SID>HtmlIndentSum(a:lnum, 0)
+
+ if restore_ic == 0
+ setlocal noic
+ endif
+
+ return indent(lnum) + (&sw * ind)
+endfun
+
+" [-- EOF <runtime>/indent/html.vim --]