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" Vim syntax support file
" Maintainer: Ben Fritz <fritzophrenic@gmail.com>
" Last Change: 2013 Jul 08
"
" Additional contributors:
"
"             Original by Bram Moolenaar <Bram@vim.org>
"             Modified by David Ne\v{c}as (Yeti) <yeti@physics.muni.cz>
"             XHTML support by Panagiotis Issaris <takis@lumumba.luc.ac.be>
"             Made w3 compliant by Edd Barrett <vext01@gmail.com>
"             Added html_font. Edd Barrett <vext01@gmail.com>
"             Progress bar based off code from "progressbar widget" plugin by
"               Andreas Politz, heavily modified:
"               http://www.vim.org/scripts/script.php?script_id=2006
"
"             See Mercurial change logs for more!

" Transform a file into HTML, using the current syntax highlighting.

" this file uses line continuations
let s:cpo_sav = &cpo
let s:ls  = &ls
set cpo&vim

let s:end=line('$')

" Font
if exists("g:html_font")
  let s:htmlfont = "'". g:html_font . "', monospace"
else
  let s:htmlfont = "monospace"
endif

let s:settings = tohtml#GetUserSettings()

if !exists('s:FOLDED_ID')
  let s:FOLDED_ID  = hlID("Folded")     | lockvar s:FOLDED_ID
  let s:FOLD_C_ID  = hlID("FoldColumn") | lockvar s:FOLD_C_ID
  let s:LINENR_ID  = hlID('LineNr')     | lockvar s:LINENR_ID
  let s:DIFF_D_ID  = hlID("DiffDelete") | lockvar s:DIFF_D_ID
  let s:DIFF_A_ID  = hlID("DiffAdd")    | lockvar s:DIFF_A_ID
  let s:DIFF_C_ID  = hlID("DiffChange") | lockvar s:DIFF_C_ID
  let s:DIFF_T_ID  = hlID("DiffText")   | lockvar s:DIFF_T_ID
  let s:CONCEAL_ID = hlID('Conceal')    | lockvar s:CONCEAL_ID
endif

" Whitespace
if s:settings.pre_wrap
  let s:whitespace = "white-space: pre-wrap; "
else
  let s:whitespace = ""
endif

if !empty(s:settings.prevent_copy)
  if s:settings.no_invalid
    " User has decided they don't want invalid markup. Still works in
    " OpenOffice, and for text editors, but when pasting into Microsoft Word the
    " input elements get pasted too and they cannot be deleted (at least not
    " easily).
    let s:unselInputType = ""
  else
    " Prevent from copy-pasting the input elements into Microsoft Word where
    " they cannot be deleted easily by deliberately inserting invalid markup.
    let s:unselInputType = " type='invalid_input_type'"
  endif
endif

" When not in gui we can only guess the colors.
" TODO - is this true anymore?
if has("gui_running")
  let s:whatterm = "gui"
else
  let s:whatterm = "cterm"
  if &t_Co == 8
    let s:cterm_color = {
	    \   0: "#808080", 1: "#ff6060", 2: "#00ff00", 3: "#ffff00",
	    \   4: "#8080ff", 5: "#ff40ff", 6: "#00ffff", 7: "#ffffff"
	    \ }
  else
    let s:cterm_color = {
	    \   0: "#000000", 1: "#c00000", 2: "#008000", 3: "#804000", 
	    \   4: "#0000c0", 5: "#c000c0", 6: "#008080", 7: "#c0c0c0", 
	    \   8: "#808080", 9: "#ff6060", 10: "#00ff00", 11: "#ffff00",
	    \   12: "#8080ff", 13: "#ff40ff", 14: "#00ffff", 15: "#ffffff"
	    \ }

    " Colors for 88 and 256 come from xterm.
    if &t_Co == 88
      call extend(s:cterm_color, {
	    \   16: "#000000", 17: "#00008b", 18: "#0000cd", 19: "#0000ff",
	    \   20: "#008b00", 21: "#008b8b", 22: "#008bcd", 23: "#008bff",
	    \   24: "#00cd00", 25: "#00cd8b", 26: "#00cdcd", 27: "#00cdff",
	    \   28: "#00ff00", 29: "#00ff8b", 30: "#00ffcd", 31: "#00ffff",
	    \   32: "#8b0000", 33: "#8b008b", 34: "#8b00cd", 35: "#8b00ff",
	    \   36: "#8b8b00", 37: "#8b8b8b", 38: "#8b8bcd", 39: "#8b8bff",
	    \   40: "#8bcd00", 41: "#8bcd8b", 42: "#8bcdcd", 43: "#8bcdff",
	    \   44: "#8bff00", 45: "#8bff8b", 46: "#8bffcd", 47: "#8bffff",
	    \   48: "#cd0000", 49: "#cd008b", 50: "#cd00cd", 51: "#cd00ff",
	    \   52: "#cd8b00", 53: "#cd8b8b", 54: "#cd8bcd", 55: "#cd8bff",
	    \   56: "#cdcd00", 57: "#cdcd8b", 58: "#cdcdcd", 59: "#cdcdff",
	    \   60: "#cdff00", 61: "#cdff8b", 62: "#cdffcd", 63: "#cdffff",
	    \   64: "#ff0000"
	    \ })
      call extend(s:cterm_color, {
	    \   65: "#ff008b", 66: "#ff00cd", 67: "#ff00ff", 68: "#ff8b00",
	    \   69: "#ff8b8b", 70: "#ff8bcd", 71: "#ff8bff", 72: "#ffcd00",
	    \   73: "#ffcd8b", 74: "#ffcdcd", 75: "#ffcdff", 76: "#ffff00",
	    \   77: "#ffff8b", 78: "#ffffcd", 79: "#ffffff", 80: "#2e2e2e",
	    \   81: "#5c5c5c", 82: "#737373", 83: "#8b8b8b", 84: "#a2a2a2",
	    \   85: "#b9b9b9", 86: "#d0d0d0", 87: "#e7e7e7"
	    \ })
    elseif &t_Co == 256
      call extend(s:cterm_color, {
	    \   16: "#000000", 17: "#00005f", 18: "#000087", 19: "#0000af",
	    \   20: "#0000d7", 21: "#0000ff", 22: "#005f00", 23: "#005f5f",
	    \   24: "#005f87", 25: "#005faf", 26: "#005fd7", 27: "#005fff",
	    \   28: "#008700", 29: "#00875f", 30: "#008787", 31: "#0087af",
	    \   32: "#0087d7", 33: "#0087ff", 34: "#00af00", 35: "#00af5f",
	    \   36: "#00af87", 37: "#00afaf", 38: "#00afd7", 39: "#00afff",
	    \   40: "#00d700", 41: "#00d75f", 42: "#00d787", 43: "#00d7af",
	    \   44: "#00d7d7", 45: "#00d7ff", 46: "#00ff00", 47: "#00ff5f",
	    \   48: "#00ff87", 49: "#00ffaf", 50: "#00ffd7", 51: "#00ffff",
	    \   52: "#5f0000", 53: "#5f005f", 54: "#5f0087", 55: "#5f00af",
	    \   56: "#5f00d7", 57: "#5f00ff", 58: "#5f5f00", 59: "#5f5f5f",
	    \   60: "#5f5f87", 61: "#5f5faf", 62: "#5f5fd7", 63: "#5f5fff",
	    \   64: "#5f8700"
	    \ })
      call extend(s:cterm_color, {
	    \   65: "#5f875f", 66: "#5f8787", 67: "#5f87af", 68: "#5f87d7",
	    \   69: "#5f87ff", 70: "#5faf00", 71: "#5faf5f", 72: "#5faf87",
	    \   73: "#5fafaf", 74: "#5fafd7", 75: "#5fafff", 76: "#5fd700",
	    \   77: "#5fd75f", 78: "#5fd787", 79: "#5fd7af", 80: "#5fd7d7",
	    \   81: "#5fd7ff", 82: "#5fff00", 83: "#5fff5f", 84: "#5fff87",
	    \   85: "#5fffaf", 86: "#5fffd7", 87: "#5fffff", 88: "#870000",
	    \   89: "#87005f", 90: "#870087", 91: "#8700af", 92: "#8700d7",
	    \   93: "#8700ff", 94: "#875f00", 95: "#875f5f", 96: "#875f87",
	    \   97: "#875faf", 98: "#875fd7", 99: "#875fff", 100: "#878700",
	    \   101: "#87875f", 102: "#878787", 103: "#8787af", 104: "#8787d7",
	    \   105: "#8787ff", 106: "#87af00", 107: "#87af5f", 108: "#87af87",
	    \   109: "#87afaf", 110: "#87afd7", 111: "#87afff", 112: "#87d700"
	    \ })
      call extend(s:cterm_color, {
	    \   113: "#87d75f", 114: "#87d787", 115: "#87d7af", 116: "#87d7d7",
	    \   117: "#87d7ff", 118: "#87ff00", 119: "#87ff5f", 120: "#87ff87",
	    \   121: "#87ffaf", 122: "#87ffd7", 123: "#87ffff", 124: "#af0000",
	    \   125: "#af005f", 126: "#af0087", 127: "#af00af", 128: "#af00d7",
	    \   129: "#af00ff", 130: "#af5f00", 131: "#af5f5f", 132: "#af5f87",
	    \   133: "#af5faf", 134: "#af5fd7", 135: "#af5fff", 136: "#af8700",
	    \   137: "#af875f", 138: "#af8787", 139: "#af87af", 140: "#af87d7",
	    \   141: "#af87ff", 142: "#afaf00", 143: "#afaf5f", 144: "#afaf87",
	    \   145: "#afafaf", 146: "#afafd7", 147: "#afafff", 148: "#afd700",
	    \   149: "#afd75f", 150: "#afd787", 151: "#afd7af", 152: "#afd7d7",
	    \   153: "#afd7ff", 154: "#afff00", 155: "#afff5f", 156: "#afff87",
	    \   157: "#afffaf", 158: "#afffd7"
	    \ })
      call extend(s:cterm_color, {
	    \   159: "#afffff", 160: "#d70000", 161: "#d7005f", 162: "#d70087",
	    \   163: "#d700af", 164: "#d700d7", 165: "#d700ff", 166: "#d75f00",
	    \   167: "#d75f5f", 168: "#d75f87", 169: "#d75faf", 170: "#d75fd7",
	    \   171: "#d75fff", 172: "#d78700", 173: "#d7875f", 174: "#d78787",
	    \   175: "#d787af", 176: "#d787d7", 177: "#d787ff", 178: "#d7af00",
	    \   179: "#d7af5f", 180: "#d7af87", 181: "#d7afaf", 182: "#d7afd7",
	    \   183: "#d7afff", 184: "#d7d700", 185: "#d7d75f", 186: "#d7d787",
	    \   187: "#d7d7af", 188: "#d7d7d7", 189: "#d7d7ff", 190: "#d7ff00",
	    \   191: "#d7ff5f", 192: "#d7ff87", 193: "#d7ffaf", 194: "#d7ffd7",
	    \   195: "#d7ffff", 196: "#ff0000", 197: "#ff005f", 198: "#ff0087",
	    \   199: "#ff00af", 200: "#ff00d7", 201: "#ff00ff", 202: "#ff5f00",
	    \   203: "#ff5f5f", 204: "#ff5f87"
	    \ })
      call extend(s:cterm_color, {
	    \   205: "#ff5faf", 206: "#ff5fd7", 207: "#ff5fff", 208: "#ff8700",
	    \   209: "#ff875f", 210: "#ff8787", 211: "#ff87af", 212: "#ff87d7",
	    \   213: "#ff87ff", 214: "#ffaf00", 215: "#ffaf5f", 216: "#ffaf87",
	    \   217: "#ffafaf", 218: "#ffafd7", 219: "#ffafff", 220: "#ffd700",
	    \   221: "#ffd75f", 222: "#ffd787", 223: "#ffd7af", 224: "#ffd7d7",
	    \   225: "#ffd7ff", 226: "#ffff00", 227: "#ffff5f", 228: "#ffff87",
	    \   229: "#ffffaf", 230: "#ffffd7", 231: "#ffffff", 232: "#080808",
	    \   233: "#121212", 234: "#1c1c1c", 235: "#262626", 236: "#303030",
	    \   237: "#3a3a3a", 238: "#444444", 239: "#4e4e4e", 240: "#585858",
	    \   241: "#626262", 242: "#6c6c6c", 243: "#767676", 244: "#808080",
	    \   245: "#8a8a8a", 246: "#949494", 247: "#9e9e9e", 248: "#a8a8a8",
	    \   249: "#b2b2b2", 250: "#bcbcbc", 251: "#c6c6c6", 252: "#d0d0d0",
	    \   253: "#dadada", 254: "#e4e4e4", 255: "#eeeeee"
	    \ })
    endif
  endif
endif

" Return good color specification: in GUI no transformation is done, in
" terminal return RGB values of known colors and empty string for unknown
if s:whatterm == "gui"
  function! s:HtmlColor(color)
    return a:color
  endfun
else
  function! s:HtmlColor(color)
    if has_key(s:cterm_color, a:color)
      return s:cterm_color[a:color]
    else
      return ""
    endif
  endfun
endif

" Find out the background and foreground color for use later
let s:fgc = s:HtmlColor(synIDattr(hlID("Normal"), "fg#", s:whatterm))
let s:bgc = s:HtmlColor(synIDattr(hlID("Normal"), "bg#", s:whatterm))
if s:fgc == ""
  let s:fgc = ( &background == "dark" ? "#ffffff" : "#000000" )
endif
if s:bgc == ""
  let s:bgc = ( &background == "dark" ? "#000000" : "#ffffff" )
endif

if !s:settings.use_css
  " Return opening HTML tag for given highlight id
  function! s:HtmlOpening(id, extra_attrs)
    let a = ""
    if synIDattr(a:id, "inverse")
      " For inverse, we always must set both colors (and exchange them)
      let x = s:HtmlColor(synIDattr(a:id, "fg#", s:whatterm))
      let a = a . '<span '.a:extra_attrs.'style="background-color: ' . ( x != "" ? x : s:fgc ) . '">'
      let x = s:HtmlColor(synIDattr(a:id, "bg#", s:whatterm))
      let a = a . '<font color="' . ( x != "" ? x : s:bgc ) . '">'
    else
      let x = s:HtmlColor(synIDattr(a:id, "bg#", s:whatterm))
      if x != ""
	let a = a . '<span '.a:extra_attrs.'style="background-color: ' . x . '">'
      elseif !empty(a:extra_attrs)
	let a = a . '<span '.a:extra_attrs.'>'
      endif
      let x = s:HtmlColor(synIDattr(a:id, "fg#", s:whatterm))
      if x != "" | let a = a . '<font color="' . x . '">' | endif
    endif
    if synIDattr(a:id, "bold") | let a = a . "<b>" | endif
    if synIDattr(a:id, "italic") | let a = a . "<i>" | endif
    if synIDattr(a:id, "underline") | let a = a . "<u>" | endif
    return a
  endfun

  " Return closing HTML tag for given highlight id
  function! s:HtmlClosing(id, has_extra_attrs)
    let a = ""
    if synIDattr(a:id, "underline") | let a = a . "</u>" | endif
    if synIDattr(a:id, "italic") | let a = a . "</i>" | endif
    if synIDattr(a:id, "bold") | let a = a . "</b>" | endif
    if synIDattr(a:id, "inverse")
      let a = a . '</font></span>'
    else
      let x = s:HtmlColor(synIDattr(a:id, "fg#", s:whatterm))
      if x != "" | let a = a . '</font>' | endif
      let x = s:HtmlColor(synIDattr(a:id, "bg#", s:whatterm))
      if x != "" || a:has_extra_attrs | let a = a . '</span>' | endif
    endif
    return a
  endfun
endif

" Use a different function for formatting based on user options. This way we
" can avoid a lot of logic during the actual execution.
"
" Build the function line by line containing only what is needed for the options
" in use for maximum code sharing with minimal branch logic for greater speed.
"
" Note, 'exec' commands do not recognize line continuations, so must concatenate
" lines rather than continue them.
if s:settings.use_css
  " save CSS to a list of rules to add to the output at the end of processing

  " first, get the style names we need
  let wrapperfunc_lines = [
	\ 'function! s:BuildStyleWrapper(style_id, diff_style_id, extra_attrs, text, make_unselectable, unformatted)',
	\ '',
	\ '  let l:style_name = synIDattr(a:style_id, "name", s:whatterm)'
	\ ]
  if &diff
    let wrapperfunc_lines += [
	\ '  let l:diff_style_name = synIDattr(a:diff_style_id, "name", s:whatterm)']

  " Add normal groups and diff groups to separate lists so we can order them to
  " allow diff highlight to override normal highlight

  " if primary style IS a diff style, grab it from the diff cache instead
  " (always succeeds because we pre-populate it)
  let wrapperfunc_lines += [
	\ '',
	\ '  if a:style_id == s:DIFF_D_ID || a:style_id == s:DIFF_A_ID ||'.
	\ '          a:style_id == s:DIFF_C_ID || a:style_id == s:DIFF_T_ID',
	\ '    let l:saved_style = get(s:diffstylelist,a:style_id)',
	\ '  else'
	\ ]
  endif

  " get primary style info from cache or build it on the fly if not found
  let wrapperfunc_lines += [
	\ '    let l:saved_style = get(s:stylelist,a:style_id)',
	\ '    if type(l:saved_style) == type(0)',
	\ '      unlet l:saved_style',
	\ '      let l:saved_style = s:CSS1(a:style_id)',
	\ '      if l:saved_style != ""',
	\ '        let l:saved_style = "." . l:style_name . " { " . l:saved_style . "}"',
	\ '      endif',
	\ '      let s:stylelist[a:style_id]= l:saved_style',
	\ '    endif'
	\ ]
  if &diff
    let wrapperfunc_lines += [ '  endif' ]
  endif

  " Build the wrapper tags around the text. It turns out that caching these
  " gives pretty much zero performance gain and adds a lot of logic.

  let wrapperfunc_lines += [
	\ '',
	\ '  if l:saved_style == "" && empty(a:extra_attrs)'
	\ ]
  if &diff
    let wrapperfunc_lines += [
	\ '    if a:diff_style_id <= 0'
	\ ]
  endif
  " no surroundings if neither primary nor diff style has any info
  let wrapperfunc_lines += [
	\ '       return a:text'
	\ ]
  if &diff
    " no primary style, but diff style
    let wrapperfunc_lines += [
	\ '     else',
	\ '       return "<span class=\"" .l:diff_style_name . "\">".a:text."</span>"',
	\ '     endif'
	\ ]
  endif
  " open tag for non-empty primary style
  let wrapperfunc_lines += [
	\ '  else']
  " non-empty primary style. handle either empty or non-empty diff style.
  "
  " separate the two classes by a space to apply them both if there is a diff
  " style name, unless the primary style is empty, then just use the diff style
  " name
  let diffstyle =
	  \ (&diff ? '(a:diff_style_id <= 0 ? "" : " ". l:diff_style_name) .'
	  \        : "")
  if s:settings.prevent_copy == ""
    let wrapperfunc_lines += [
	  \ '    return "<span ".a:extra_attrs."class=\"" . l:style_name .'.diffstyle.'"\">".a:text."</span>"'
	  \ ]
  else

    "
    " Wrap the <input> in a <span> to allow fixing the stupid bug in some fonts
    " which cause browsers to display a 1px gap between lines when these
    " <input>s have a background color (maybe not really a bug, this isn't
    " well-defined)
    "
    " use strwidth, because we care only about how many character boxes are
    " needed to size the input, we don't care how many characters (including
    " separately counted composing chars, from strchars()) or bytes (from
    " len())the string contains. strdisplaywidth() is not needed because none of
    " the unselectable groups can contain tab characters (fold column, fold
    " text, line number).
    "
    " Note, if maxlength property needs to be added in the future, it will need
    " to use strchars(), because HTML specifies that the maxlength parameter
    " uses the number of unique codepoints for its limit.
    let wrapperfunc_lines += [
	  \ '    if a:make_unselectable',
	  \ '      return "<span ".a:extra_attrs."class=\"" . l:style_name .'.diffstyle.'"\">'.
	  \                '<input'.s:unselInputType.' class=\"" . l:style_name .'.diffstyle.'"\"'.
	  \                 ' value=\"".substitute(a:unformatted,''\s\+$'',"","")."\"'.
	  \                 ' onselect=''this.blur(); return false;'''.
	  \                 ' onmousedown=''this.blur(); return false;'''.
	  \                 ' onclick=''this.blur(); return false;'''.
	  \                 ' readonly=''readonly'''.
	  \                 ' size=\"".strwidth(a:unformatted)."\"'.
	  \                 (s:settings.use_xhtml ? '/' : '').'></span>"',
	  \ '    else',
	  \ '      return "<span ".a:extra_attrs."class=\"" . l:style_name .'. diffstyle .'"\">".a:text."</span>"'
	  \ ]
  endif
  let wrapperfunc_lines += [
	\ '  endif',
	\ 'endfun'
	\ ]
else
  " Non-CSS method just needs the wrapper.
  "
  " Functions used to get opening/closing automatically return null strings if
  " no styles exist.
  if &diff
    let wrapperfunc_lines = [
	  \ 'function! s:BuildStyleWrapper(style_id, diff_style_id, extra_attrs, text, unusedarg, unusedarg2)',
	  \ '  return s:HtmlOpening(a:style_id, a:extra_attrs).(a:diff_style_id <= 0 ? "" :'.
	  \                                     's:HtmlOpening(a:diff_style_id, "")).a:text.'.
	  \   '(a:diff_style_id <= 0 ? "" : s:HtmlClosing(a:diff_style_id, 0)).s:HtmlClosing(a:style_id, !empty(a:extra_attrs))',
	  \ 'endfun'
	  \ ]
  else
    let wrapperfunc_lines = [
	  \ 'function! s:BuildStyleWrapper(style_id, diff_style_id, extra_attrs, text, unusedarg, unusedarg2)',
	  \ '  return s:HtmlOpening(a:style_id, a:extra_attrs).a:text.s:HtmlClosing(a:style_id, !empty(a:extra_attrs))',
	  \ 'endfun'
	  \ ]
  endif
endif

" create the function we built line by line above
exec join(wrapperfunc_lines, "\n")

let s:diff_mode = &diff

" Return HTML valid characters enclosed in a span of class style_name with
" unprintable characters expanded and double spaces replaced as necessary.
"
" TODO: eliminate unneeded logic like done for BuildStyleWrapper
function! s:HtmlFormat(text, style_id, diff_style_id, extra_attrs, make_unselectable)
  " Replace unprintable characters
  let unformatted = strtrans(a:text)

  let formatted = unformatted

  " Replace the reserved html characters
  let formatted = substitute(formatted, '&', '\&amp;',  'g')
  let formatted = substitute(formatted, '<', '\&lt;',   'g')
  let formatted = substitute(formatted, '>', '\&gt;',   'g')
  let formatted = substitute(formatted, '"', '\&quot;', 'g')
  " &apos; is not valid in HTML but it is in XHTML, so just use the numeric
  " reference for it instead. Needed because it could appear in quotes
  " especially if unselectable regions is turned on.
  let formatted = substitute(formatted, '"', '\&#0039;', 'g')

  " Replace a "form feed" character with HTML to do a page break
  " TODO: need to prevent this in unselectable areas? Probably it should never
  " BE in an unselectable area...
  let formatted = substitute(formatted, "\x0c", '<hr class="PAGE-BREAK">', 'g')

  " Replace double spaces, leading spaces, and trailing spaces if needed
  if ' ' != s:HtmlSpace
    let formatted = substitute(formatted, '  ', s:HtmlSpace . s:HtmlSpace, 'g')
    let formatted = substitute(formatted, '^ ', s:HtmlSpace, 'g')
    let formatted = substitute(formatted, ' \+$', s:HtmlSpace, 'g')
  endif

  " Enclose in the correct format
  return s:BuildStyleWrapper(a:style_id, a:diff_style_id, a:extra_attrs, formatted, a:make_unselectable, unformatted)
endfun

" set up functions to call HtmlFormat in certain ways based on whether the
" element is supposed to be unselectable or not
if s:settings.prevent_copy =~# 'n'
  if s:settings.number_lines
    if s:settings.line_ids
      function! s:HtmlFormat_n(text, style_id, diff_style_id, lnr)
	if a:lnr > 0
	  return s:HtmlFormat(a:text, a:style_id, a:diff_style_id, 'id="'.(exists('g:html_diff_win_num') ? 'W'.g:html_diff_win_num : "").'L'.a:lnr.s:settings.id_suffix.'" ', 1)
	else
	  return s:HtmlFormat(a:text, a:style_id, a:diff_style_id, "", 1)
	endif
      endfun
    else
      function! s:HtmlFormat_n(text, style_id, diff_style_id, lnr)
	return s:HtmlFormat(a:text, a:style_id, a:diff_style_id, "", 1)
      endfun
    endif
  elseif s:settings.line_ids
    " if lines are not being numbered the only reason this function gets called
    " is to put the line IDs on each line; "text" will be emtpy but lnr will
    " always be non-zero, however we don't want to use the <input> because that
    " won't work as nice for empty text
    function! s:HtmlFormat_n(text, style_id, diff_style_id, lnr)
      return s:HtmlFormat(a:text, a:style_id, a:diff_style_id, 'id="'.(exists('g:html_diff_win_num') ? 'W'.g:html_diff_win_num : "").'L'.a:lnr.s:settings.id_suffix.'" ', 0)
    endfun
  endif
else
  if s:settings.line_ids
    function! s:HtmlFormat_n(text, style_id, diff_style_id, lnr)
      if a:lnr > 0
	return s:HtmlFormat(a:text, a:style_id, a:diff_style_id, 'id="'.(exists('g:html_diff_win_num') ? 'W'.g:html_diff_win_num : "").'L'.a:lnr.s:settings.id_suffix.'" ', 0)
      else
	return s:HtmlFormat(a:text, a:style_id, a:diff_style_id, "", 0)
      endif
    endfun
  else
    function! s:HtmlFormat_n(text, style_id, diff_style_id, lnr)
      return s:HtmlFormat(a:text, a:style_id, a:diff_style_id, "", 0)
    endfun
  endif
endif
if s:settings.prevent_copy =~# 'd'
  function! s:HtmlFormat_d(text, style_id, diff_style_id)
    return s:HtmlFormat(a:text, a:style_id, a:diff_style_id, "", 1)
  endfun
else
  function! s:HtmlFormat_d(text, style_id, diff_style_id)
    return s:HtmlFormat(a:text, a:style_id, a:diff_style_id, "", 0)
  endfun
endif
if s:settings.prevent_copy =~# 'f'
  " Note the <input> elements for fill spaces will have a single space for
  " content, to allow active cursor CSS selection to work.
  "
  " Wrap the whole thing in a span for the 1px padding workaround for gaps.
  function! s:FoldColumn_build(char, len, numfill, char2, class, click)
    let l:input_open = "<input readonly='readonly'".s:unselInputType.
	  \ " onselect='this.blur(); return false;'".
	  \ " onmousedown='this.blur(); ".a:click." return false;'".
	  \ " onclick='return false;' size='".
	  \ string(a:len + (empty(a:char2) ? 0 : 1) + a:numfill) .
	  \ "' "
    let l:common_attrs = "class='FoldColumn' value='"
    let l:input_close = (s:settings.use_xhtml ? "' />" : "'>")
    return "<span class='".a:class."'>".
	  \ l:input_open.l:common_attrs.repeat(a:char, a:len).
	  \ (!empty(a:char2) ? a:char2 : "").
	  \ l:input_close . "</span>"
  endfun
  function! s:FoldColumn_fill()
    return s:FoldColumn_build('', s:foldcolumn, 0, '', 'FoldColumn', '')
  endfun
else
  " For normal fold columns, simply space-pad to the desired width (note that
  " the FoldColumn definition includes a whitespace:pre rule)
  function! s:FoldColumn_build(char, len, numfill, char2, class, click)
    return "<a href='#' class='".a:class."' onclick='".a:click."'>".
	  \ repeat(a:char, a:len).a:char2.repeat(' ', a:numfill).
	  \ "</a>"
  endfun
  function! s:FoldColumn_fill()
    return s:HtmlFormat(repeat(' ', s:foldcolumn), s:FOLD_C_ID, 0, "", 0)
  endfun
endif
if s:settings.prevent_copy =~# 't'
  " put an extra empty span at the end for dynamic folds, so the linebreak can
  " be surrounded. Otherwise do it as normal.
  "
  " TODO: isn't there a better way to do this, than placing it here and using a
  " substitute later?
  if s:settings.dynamic_folds
    function! s:HtmlFormat_t(text, style_id, diff_style_id)
      return s:HtmlFormat(a:text, a:style_id, a:diff_style_id, "", 1) .
	    \ s:HtmlFormat("", a:style_id, 0, "", 0)
    endfun
  else
    function! s:HtmlFormat_t(text, style_id, diff_style_id)
      return s:HtmlFormat(a:text, a:style_id, a:diff_style_id, "", 1)
    endfun
  endif
else
  function! s:HtmlFormat_t(text, style_id, diff_style_id)
    return s:HtmlFormat(a:text, a:style_id, a:diff_style_id, "", 0)
  endfun
endif

" Return CSS style describing given highlight id (can be empty)
function! s:CSS1(id)
  let a = ""
  if synIDattr(a:id, "inverse")
    " For inverse, we always must set both colors (and exchange them)
    let x = s:HtmlColor(synIDattr(a:id, "bg#", s:whatterm))
    let a = a . "color: " . ( x != "" ? x : s:bgc ) . "; "
    let x = s:HtmlColor(synIDattr(a:id, "fg#", s:whatterm))
    let a = a . "background-color: " . ( x != "" ? x : s:fgc ) . "; "
  else
    let x = s:HtmlColor(synIDattr(a:id, "fg#", s:whatterm))
    if x != "" | let a = a . "color: " . x . "; " | endif
    let x = s:HtmlColor(synIDattr(a:id, "bg#", s:whatterm))
    if x != ""
      let a = a . "background-color: " . x . "; "
      " stupid hack because almost every browser seems to have at least one font
      " which shows 1px gaps between lines which have background
      let a = a . "padding-bottom: 1px; "
    elseif (a:id == s:FOLDED_ID || a:id == s:LINENR_ID || a:id == s:FOLD_C_ID) && !empty(s:settings.prevent_copy)
      " input elements default to a different color than the rest of the page
      let a = a . "background-color: " . s:bgc . "; "
    endif
  endif
  if synIDattr(a:id, "bold") | let a = a . "font-weight: bold; " | endif
  if synIDattr(a:id, "italic") | let a = a . "font-style: italic; " | endif
  if synIDattr(a:id, "underline") | let a = a . "text-decoration: underline; " | endif
  return a
endfun

if s:settings.dynamic_folds
  " compares two folds as stored in our list of folds
  " A fold is "less" than another if it starts at an earlier line number,
  " or ends at a later line number, ties broken by fold level
  function! s:FoldCompare(f1, f2)
    if a:f1.firstline != a:f2.firstline
      " put it before if it starts earlier
      return a:f1.firstline - a:f2.firstline
    elseif a:f1.lastline != a:f2.lastline
      " put it before if it ends later
      return a:f2.lastline - a:f1.lastline
    else
      " if folds begin and end on the same lines, put lowest fold level first
      return a:f1.level - a:f2.level
    endif
  endfunction

endif


" Set some options to make it work faster.
" Don't report changes for :substitute, there will be many of them.
" Don't change other windows; turn off scroll bind temporarily
let s:old_title = &title
let s:old_icon = &icon
let s:old_et = &l:et
let s:old_bind = &l:scrollbind
let s:old_report = &report
let s:old_search = @/
let s:old_more = &more
set notitle noicon
setlocal et
set nomore
set report=1000000
setlocal noscrollbind

if exists(':ownsyntax') && exists('w:current_syntax')
  let s:current_syntax = w:current_syntax
elseif exists('b:current_syntax')
  let s:current_syntax = b:current_syntax
else
  let s:current_syntax = 'none'
endif

if s:current_syntax == ''
  let s:current_syntax = 'none'
endif

" Split window to create a buffer with the HTML file.
let s:orgbufnr = winbufnr(0)
let s:origwin_stl = &l:stl
if expand("%") == ""
  if exists('g:html_diff_win_num')
    exec 'new Untitled_win'.g:html_diff_win_num.'.'.(s:settings.use_xhtml ? 'x' : '').'html'
  else
    exec 'new Untitled.'.(s:settings.use_xhtml ? 'x' : '').'html'
  endif
else
  exec 'new %.'.(s:settings.use_xhtml ? 'x' : '').'html'
endif

" Resize the new window to very small in order to make it draw faster
let s:old_winheight = winheight(0)
let s:old_winfixheight = &l:winfixheight
if s:old_winheight > 2
  resize 1 " leave enough room to view one line at a time
  norm! G
  norm! zt
endif
setlocal winfixheight

let s:newwin_stl = &l:stl

" on the new window, set the least time-consuming fold method
let s:old_fen = &foldenable
setlocal foldmethod=manual
setlocal nofoldenable

let s:newwin = winnr()
let s:orgwin = bufwinnr(s:orgbufnr)

setlocal modifiable
%d
let s:old_paste = &paste
set paste
let s:old_magic = &magic
set magic

" set the fileencoding to match the charset we'll be using
let &l:fileencoding=s:settings.vim_encoding

" According to http://www.w3.org/TR/html4/charset.html#doc-char-set, the byte
" order mark is highly recommend on the web when using multibyte encodings. But,
" it is not a good idea to include it on UTF-8 files. Otherwise, let Vim
" determine when it is actually inserted.
if s:settings.vim_encoding == 'utf-8'
  setlocal nobomb
else
  setlocal bomb
endif

let s:lines = []

if s:settings.use_xhtml
  if s:settings.encoding != ""
    call add(s:lines, "<?xml version=\"1.0\" encoding=\"" . s:settings.encoding . "\"?>")
  else
    call add(s:lines, "<?xml version=\"1.0\"?>")
  endif
  let s:tag_close = ' />'
else
  let s:tag_close = '>'
endif

let s:HtmlSpace = ' '
let s:LeadingSpace = ' '
let s:HtmlEndline = ''
if s:settings.no_pre
  let s:HtmlEndline = '<br' . s:tag_close
  let s:LeadingSpace = s:settings.use_xhtml ? '&#160;' : '&nbsp;'
  let s:HtmlSpace = '\' . s:LeadingSpace
endif

" HTML header, with the title and generator ;-). Left free space for the CSS,
" to be filled at the end.
call extend(s:lines, [
      \ "<html>",
      \ "<head>"])
" include encoding as close to the top as possible, but only if not already
" contained in XML information (to avoid haggling over content type)
if s:settings.encoding != "" && !s:settings.use_xhtml
  call add(s:lines, "<meta http-equiv=\"content-type\" content=\"text/html; charset=" . s:settings.encoding . '"' . s:tag_close)
endif
call extend(s:lines, [
      \ ("<title>".expand("%:p:~")."</title>"),
      \ ("<meta name=\"Generator\" content=\"Vim/".v:version/100.".".v:version%100.'"'.s:tag_close),
      \ ("<meta name=\"plugin-version\" content=\"".g:loaded_2html_plugin.'"'.s:tag_close)
      \ ])
call add(s:lines, '<meta name="syntax" content="'.s:current_syntax.'"'.s:tag_close)
call add(s:lines, '<meta name="settings" content="'.
      \ join(filter(keys(s:settings),'s:settings[v:val]'),',').
      \ ',prevent_copy='.s:settings.prevent_copy.
      \ '"'.s:tag_close)
call add(s:lines, '<meta name="colorscheme" content="'.
      \ (exists('g:colors_name')
      \ ? g:colors_name
      \ : 'none'). '"'.s:tag_close)

if s:settings.use_css
  if s:settings.dynamic_folds
    if s:settings.hover_unfold
      " if we are doing hover_unfold, use css 2 with css 1 fallback for IE6
      call extend(s:lines, [
	    \ "<style type=\"text/css\">",
	    \ s:settings.use_xhtml ? "" : "<!--",
	    \ ".FoldColumn { text-decoration: none; white-space: pre; }",
	    \ "",
	    \ "body * { margin: 0; padding: 0; }", "",
	    \ ".open-fold   > .Folded { display: none;  }",
	    \ ".open-fold   > .fulltext { display: inline; }",
	    \ ".closed-fold > .fulltext { display: none;  }",
	    \ ".closed-fold > .Folded { display: inline; }",
	    \ "",
	    \ ".open-fold   > .toggle-open   { display: none;   }",
	    \ ".open-fold   > .toggle-closed { display: inline; }",
	    \ ".closed-fold > .toggle-open   { display: inline; }",
	    \ ".closed-fold > .toggle-closed { display: none;   }",
	    \ "", "",
	    \ '/* opening a fold while hovering won''t be supported by IE6 and other',
	    \ "similar browsers, but it should fail gracefully. */",
	    \ ".closed-fold:hover > .fulltext { display: inline; }",
	    \ ".closed-fold:hover > .toggle-filler { display: none; }",
	    \ ".closed-fold:hover > .Folded { display: none; }",
	    \ s:settings.use_xhtml ? "" : '-->',
	    \ '</style>'])
      " TODO: IE7 doesn't *actually* support XHTML, maybe we should remove this.
      " But if it's served up as tag soup, maybe the following will work, so
      " leave it in for now.
      call extend(s:lines, [
	    \ "<!--[if lt IE 7]><style type=\"text/css\">",
	    \ ".open-fold   .Folded      { display: none; }",
	    \ ".open-fold   .fulltext      { display: inline; }",
	    \ ".open-fold   .toggle-open   { display: none; }",
	    \ ".closed-fold .toggle-closed { display: inline; }",
	    \ "",
	    \ ".closed-fold .fulltext      { display: none; }",
	    \ ".closed-fold .Folded      { display: inline; }",
	    \ ".closed-fold .toggle-open   { display: inline; }",
	    \ ".closed-fold .toggle-closed { display: none; }",
	    \ "</style>",
	    \ "<![endif]-->",
	    \])
    else
      " if we aren't doing hover_unfold, use CSS 1 only
      call extend(s:lines, [
	    \ "<style type=\"text/css\">",
	    \ s:settings.use_xhtml ? "" :"<!--",
	    \ ".FoldColumn { text-decoration: none; white-space: pre; }",
	    \ ".open-fold   .Folded      { display: none; }",
	    \ ".open-fold   .fulltext      { display: inline; }",
	    \ ".open-fold   .toggle-open   { display: none; }",
	    \ ".closed-fold .toggle-closed { display: inline; }",
	    \ "",
	    \ ".closed-fold .fulltext      { display: none; }",
	    \ ".closed-fold .Folded      { display: inline; }",
	    \ ".closed-fold .toggle-open   { display: inline; }",
	    \ ".closed-fold .toggle-closed { display: none; }",
	    \ s:settings.use_xhtml ? "" : '-->',
	    \ '</style>'
	    \])
    endif
  else
    " if we aren't doing any dynamic folding, no need for any special rules
    call extend(s:lines, [
	  \ "<style type=\"text/css\">",
	  \ s:settings.use_xhtml ? "" : "<!--",
	  \ s:settings.use_xhtml ? "" : '-->',
	  \ "</style>",
	  \])
  endif
endif

" insert script tag; javascript is always needed for the line number
" normalization for URL hashes
call extend(s:lines, [
      \ "",
      \ "<script type='text/javascript'>",
      \ s:settings.use_xhtml ? '//<![CDATA[' : "<!--"])

" insert javascript to toggle folds open and closed
if s:settings.dynamic_folds
  call extend(s:lines, [
	\ "",
	\ "function toggleFold(objID)",
	\ "{",
	\ "  var fold;",
	\ "  fold = document.getElementById(objID);",
	\ "  if(fold.className == 'closed-fold')",
	\ "  {",
	\ "    fold.className = 'open-fold';",
	\ "  }",
	\ "  else if (fold.className == 'open-fold')",
	\ "  {",
	\ "    fold.className = 'closed-fold';",
	\ "  }",
	\ "}"
	\ ])
endif

if s:settings.line_ids
  " insert javascript to get IDs from line numbers, and to open a fold before
  " jumping to any lines contained therein
  call extend(s:lines, [
	\ "",
	\ "/* function to open any folds containing a jumped-to line before jumping to it */",
	\ "function JumpToLine()",
	\ "{",
	\ "  var lineNum;",
	\ "  lineNum = window.location.hash;",
	\ "  lineNum = lineNum.substr(1); /* strip off '#' */",
	\ "",
	\ "  if (lineNum.indexOf('L') == -1) {",
	\ "    lineNum = 'L'+lineNum;",
	\ "  }",
	\ "  lineElem = document.getElementById(lineNum);"
	\ ])
  if s:settings.dynamic_folds
    call extend(s:lines, [
	  \ "",
	  \ "  /* navigate upwards in the DOM tree to open all folds containing the line */",
	  \ "  var node = lineElem;",
	  \ "  while (node && node.id != 'vimCodeElement".s:settings.id_suffix."')",
	  \ "  {",
	  \ "    if (node.className == 'closed-fold')",
	  \ "    {",
	  \ "      node.className = 'open-fold';",
	  \ "    }",
	  \ "    node = node.parentNode;",
	  \ "  }",
	  \ ])
  endif
  call extend(s:lines, [
	\ "  /* Always jump to new location even if the line was hidden inside a fold, or",
	\ "   * we corrected the raw number to a line ID.",
	\ "   */",
	\ "  if (lineElem) {",
	\ "    lineElem.scrollIntoView(true);",
	\ "  }",
	\ "  return true;",
	\ "}",
	\ "if ('onhashchange' in window) {",
	\ "  window.onhashchange = JumpToLine;",
	\ "}"
	\ ])
endif

" Small text columns like the foldcolumn and line number column need a weird
" hack to work around Webkit's and (in versions prior to 9) IE's lack of support
" for the 'ch' unit without messing up Opera, which also doesn't support it but
" works anyway.
"
" The problem is that without the 'ch' unit, it is not possible to specify a
" size of an <input> in terms of character widths. Only Opera seems to do the
" "sensible" thing and make the <input> sized to fit exactly as many characters
" as specified by its "size" attribute, but the spec actually says "at least
" wide enough to fit 'size' characters", so the other browsers are technically
" correct as well.
"
" Anyway, this leads to two diffculties:
"   1. The foldcolumn is made up of multiple elements side-by-side with
"      different sizes, each of which has their own extra padding added. Thus, a
"      column made up of one item of size 1 and another of size 2 would not
"      necessarily be equal in size to another line's foldcolumn with a single
"      item of size 3.
"   2. The extra padding added to the <input> elements adds up to make the
"      foldcolumn and line number column too wide, especially in Webkit
"      browsers.
"
" So, the full workaround is:
"   1. Define a default size in em, equal to the number of characters in the
"      input element, in case javascript is disabled and the browser does not
"      support the 'ch' unit. Unfortunately this makes Opera no longer work
"      properly without javascript. 1em per character is much too wide but it
"      looks better in webkit browsers than unaligned columns.
"   2. Insert the following javascript to run at page load, which checks for the
"      width of a single character (in an extraneous page element inserted
"      before the page title, and set to hidden) and compares it to the width of
"      another extra <input> element with only one character. If the width
"      matches, the script does nothing more, but if not, it will figure out the
"      fraction of an em unit which would correspond with a ch unit if there
"      were one, and set the containing element (<pre> or <div>) to a class with
"      pre-defined rules which is closest to that fraction of an em. Rules are
"      defined from 0.05 em to 1em per ch.
if !empty(s:settings.prevent_copy)
  call extend(s:lines, [
	\ '',
	\ '/* simulate a "ch" unit by asking the browser how big a zero character is */',
	\ 'function FixCharWidth() {',
	\ '  /* get the hidden element which gives the width of a single character */',
	\ '  var goodWidth = document.getElementById("oneCharWidth").clientWidth;',
	\ '  /* get all input elements, we''ll filter on class later */',
	\ '  var inputTags = document.getElementsByTagName("input");',
	\ '  var ratio = 5;',
	\ '  var inputWidth = document.getElementById("oneInputWidth").clientWidth;',
	\ '  var emWidth = document.getElementById("oneEmWidth").clientWidth;',
	\ '  if (inputWidth > goodWidth) {',
	\ '    while (ratio < 100*goodWidth/emWidth && ratio < 100) {',
	\ '      ratio += 5;',
	\ '    }',
	\ '    document.getElementById("vimCodeElement'.s:settings.id_suffix.'").className = "em"+ratio;',
	\ '  }',
	\ '}'
	\ ])
endif

" insert script closing tag
call extend(s:lines, [
      \ '',
      \ s:settings.use_xhtml ? '//]]>' : '-->',
      \ "</script>"
      \ ])

call extend(s:lines, ["</head>"])
if !empty(s:settings.prevent_copy)
  call extend(s:lines,
	\ ["<body onload='FixCharWidth();".(s:settings.line_ids ? " JumpToLine();" : "")."'>",
	\ "<!-- hidden divs used by javascript to get the width of a char -->",
	\ "<div id='oneCharWidth'>0</div>",
	\ "<div id='oneInputWidth'><input size='1' value='0'".s:tag_close."</div>",
	\ "<div id='oneEmWidth' style='width: 1em;'></div>"
	\ ])
else
  call extend(s:lines, ["<body".(s:settings.line_ids ? " onload='JumpToLine();'" : "").">"])
endif
if s:settings.no_pre
  " if we're not using CSS we use a font tag which can't have a div inside
  if s:settings.use_css
    call extend(s:lines, ["<div id='vimCodeElement".s:settings.id_suffix."'>"])
  endif
else
  call extend(s:lines, ["<pre id='vimCodeElement".s:settings.id_suffix."'>"])
endif

exe s:orgwin . "wincmd w"

" caches of style data
" initialize to include line numbers if using them
if s:settings.number_lines
  let s:stylelist = { s:LINENR_ID : ".LineNr { " . s:CSS1( s:LINENR_ID ) . "}" }
else
  let s:stylelist = {}
endif
let s:diffstylelist = {
      \   s:DIFF_A_ID : ".DiffAdd { " . s:CSS1( s:DIFF_A_ID ) . "}",
      \   s:DIFF_C_ID : ".DiffChange { " . s:CSS1( s:DIFF_C_ID ) . "}",
      \   s:DIFF_D_ID : ".DiffDelete { " . s:CSS1( s:DIFF_D_ID ) . "}",
      \   s:DIFF_T_ID : ".DiffText { " . s:CSS1( s:DIFF_T_ID ) . "}"
      \ }

" set up progress bar in the status line
if !s:settings.no_progress
  " ProgressBar Indicator
  let s:progressbar={}

  " Progessbar specific functions
  func! s:ProgressBar(title, max_value, winnr)
    let pgb=copy(s:progressbar)
    let pgb.title = a:title.' '
    let pgb.max_value = a:max_value
    let pgb.winnr = a:winnr
    let pgb.cur_value = 0
    let pgb.items = { 'title'   : { 'color' : 'Statusline' },
	  \'bar'     : { 'color' : 'Statusline' , 'fillcolor' : 'DiffDelete' , 'bg' : 'Statusline' } ,
	  \'counter' : { 'color' : 'Statusline' } }
    let pgb.last_value = 0
    let pgb.needs_redraw = 0
    " Note that you must use len(split) instead of len() if you want to use 
    " unicode in title.
    "
    " Subtract 3 for spacing around the title.
    " Subtract 4 for the percentage display.
    " Subtract 2 for spacing before this.
    " Subtract 2 more for the '|' on either side of the progress bar
    let pgb.subtractedlen=len(split(pgb.title, '\zs'))+3+4+2+2
    let pgb.max_len = 0
    set laststatus=2
    return pgb
  endfun

  " Function: progressbar.calculate_ticks() {{{1
  func! s:progressbar.calculate_ticks(pb_len)
    if a:pb_len<=0
      let pb_len = 100
    else
      let pb_len = a:pb_len
    endif
    let self.progress_ticks = map(range(pb_len+1), "v:val * self.max_value / pb_len")
  endfun

  "Function: progressbar.paint()
  func! s:progressbar.paint()
    " Recalculate widths.
    let max_len = winwidth(self.winnr)
    let pb_len = 0
    " always true on first call because of initial value of self.max_len
    if max_len != self.max_len
      let self.max_len = max_len

      " Progressbar length
      let pb_len = max_len - self.subtractedlen

      call self.calculate_ticks(pb_len)

      let self.needs_redraw = 1
      let cur_value = 0
      let self.pb_len = pb_len
    else
      " start searching at the last found index to make the search for the
      " appropriate tick value normally take 0 or 1 comparisons
      let cur_value = self.last_value
      let pb_len = self.pb_len
    endif

    let cur_val_max = pb_len > 0 ? pb_len : 100

    " find the current progress bar position based on precalculated thresholds
    while cur_value < cur_val_max && self.cur_value > self.progress_ticks[cur_value]
      let cur_value += 1
    endwhile

    " update progress bar
    if self.last_value != cur_value || self.needs_redraw || self.cur_value == self.max_value
      let self.needs_redraw = 1
      let self.last_value = cur_value

      let t_color  = self.items.title.color
      let b_fcolor = self.items.bar.fillcolor
      let b_color  = self.items.bar.color
      let c_color  = self.items.counter.color

      let stl =  "%#".t_color."#%-( ".self.title." %)".
	    \"%#".b_color."#".
	    \(pb_len>0 ?
	    \	('|%#'.b_fcolor."#%-(".repeat(" ",cur_value)."%)".
	    \	 '%#'.b_color."#".repeat(" ",pb_len-cur_value)."|"):
	    \	('')).
	    \"%=%#".c_color."#%( ".printf("%3.d ",100*self.cur_value/self.max_value)."%% %)"
      call setwinvar(self.winnr, '&stl', stl)
    endif
  endfun

  func! s:progressbar.incr( ... )
    let self.cur_value += (a:0 ? a:1 : 1)
    " if we were making a general-purpose progress bar, we'd need to limit to a
    " lower limit as well, but since we always increment with a positive value
    " in this script, we only need limit the upper value
    let self.cur_value = (self.cur_value > self.max_value ? self.max_value : self.cur_value)
    call self.paint()
  endfun
  " }}}
  if s:settings.dynamic_folds
    " to process folds we make two passes through each line
    let s:pgb = s:ProgressBar("Processing folds:", line('$')*2, s:orgwin)
  endif
endif

" First do some preprocessing for dynamic folding. Do this for the entire file
" so we don't accidentally start within a closed fold or something.
let s:allfolds = []

if s:settings.dynamic_folds
  let s:lnum = 1
  let s:end = line('$')
  " save the fold text and set it to the default so we can find fold levels
  let s:foldtext_save = &foldtext
  setlocal foldtext&

  " we will set the foldcolumn in the html to the greater of the maximum fold
  " level and the current foldcolumn setting
  let s:foldcolumn = &foldcolumn

  " get all info needed to describe currently closed folds
  while s:lnum <= s:end
    if foldclosed(s:lnum) == s:lnum
      " default fold text has '+-' and then a number of dashes equal to fold
      " level, so subtract 2 from index of first non-dash after the dashes
      " in order to get the fold level of the current fold
      let s:level = match(foldtextresult(s:lnum), '+-*\zs[^-]') - 2
      " store fold info for later use
      let s:newfold = {'firstline': s:lnum, 'lastline': foldclosedend(s:lnum), 'level': s:level,'type': "closed-fold"}
      call add(s:allfolds, s:newfold)
      " open the fold so we can find any contained folds
      execute s:lnum."foldopen"
    else
      if !s:settings.no_progress
	call s:pgb.incr()
	if s:pgb.needs_redraw
	  redrawstatus
	  let s:pgb.needs_redraw = 0
	endif
      endif
      let s:lnum = s:lnum + 1
    endif
  endwhile

  " close all folds to get info for originally open folds
  silent! %foldclose!
  let s:lnum = 1

  " the originally open folds will be all folds we encounter that aren't
  " already in the list of closed folds
  while s:lnum <= s:end
    if foldclosed(s:lnum) == s:lnum
      " default fold text has '+-' and then a number of dashes equal to fold
      " level, so subtract 2 from index of first non-dash after the dashes
      " in order to get the fold level of the current fold
      let s:level = match(foldtextresult(s:lnum), '+-*\zs[^-]') - 2
      let s:newfold = {'firstline': s:lnum, 'lastline': foldclosedend(s:lnum), 'level': s:level,'type': "closed-fold"}
      " only add the fold if we don't already have it
      if empty(s:allfolds) || index(s:allfolds, s:newfold) == -1
	let s:newfold.type = "open-fold"
	call add(s:allfolds, s:newfold)
      endif
      " open the fold so we can find any contained folds
      execute s:lnum."foldopen"
    else
      if !s:settings.no_progress
	call s:pgb.incr()
	if s:pgb.needs_redraw
	  redrawstatus
	  let s:pgb.needs_redraw = 0
	endif
      endif
      let s:lnum = s:lnum + 1
    endif
  endwhile

  " sort the folds so that we only ever need to look at the first item in the
  " list of folds
  call sort(s:allfolds, "s:FoldCompare")

  let &l:foldtext = s:foldtext_save
  unlet s:foldtext_save

  " close all folds again so we can get the fold text as we go
  silent! %foldclose!

  " Go through and remove folds we don't need to (or cannot) process in the
  " current conversion range
  "
  " If a fold is removed which contains other folds, which are included, we need
  " to adjust the level of the included folds as used by the conversion logic
  " (avoiding special cases is good)
  "
  " Note any time we remove a fold, either all of the included folds are in it,
  " or none of them, because we only remove a fold if neither its start nor its
  " end are within the conversion range.
  let leveladjust = 0
  for afold in s:allfolds
    let removed = 0
    if exists("g:html_start_line") && exists("g:html_end_line")
      if afold.firstline < g:html_start_line
	if afold.lastline <= g:html_end_line && afold.lastline >= g:html_start_line
	  " if a fold starts before the range to convert but stops within the
	  " range, we need to include it. Make it start on the first converted
	  " line.
	  let afold.firstline = g:html_start_line
	else
	  " if the fold lies outside the range or the start and stop enclose
	  " the entire range, don't bother parsing it
	  call remove(s:allfolds, index(s:allfolds, afold))
	  let removed = 1
	  if afold.lastline > g:html_end_line
	    let leveladjust += 1
	  endif
	endif
      elseif afold.firstline > g:html_end_line
	" If the entire fold lies outside the range we need to remove it.
	call remove(s:allfolds, index(s:allfolds, afold))
	let removed = 1
      endif
    elseif exists("g:html_start_line")
      if afold.firstline < g:html_start_line
	" if there is no last line, but there is a first line, the end of the
	" fold will always lie within the region of interest, so keep it
	let afold.firstline = g:html_start_line
      endif
    elseif exists("g:html_end_line")
      " if there is no first line we default to the first line in the buffer so
      " the fold start will always be included if the fold itself is included.
      " If however the entire fold lies outside the range we need to remove it.
      if afold.firstline > g:html_end_line
	call remove(s:allfolds, index(s:allfolds, afold))
	let removed = 1
      endif
    endif
    if !removed
      let afold.level -= leveladjust
      if afold.level+1 > s:foldcolumn
	let s:foldcolumn = afold.level+1
      endif
    endif
  endfor

  " if we've removed folds containing the conversion range from processing,
  " getting foldtext as we go won't know to open the removed folds, so the
  " foldtext would be wrong; open them now.
  "
  " Note that only when a start and an end line is specified will a fold
  " containing the current range ever be removed.
  while leveladjust > 0
    exe g:html_start_line."foldopen"
    let leveladjust -= 1
  endwhile
endif

" Now loop over all lines in the original text to convert to html.
" Use html_start_line and html_end_line if they are set.
if exists("g:html_start_line")
  let s:lnum = html_start_line
  if s:lnum < 1 || s:lnum > line("$")
    let s:lnum = 1
  endif
else
  let s:lnum = 1
endif
if exists("g:html_end_line")
  let s:end = html_end_line
  if s:end < s:lnum || s:end > line("$")
    let s:end = line("$")
  endif
else
  let s:end = line("$")
endif

" stack to keep track of all the folds containing the current line
let s:foldstack = []

if !s:settings.no_progress
  let s:pgb = s:ProgressBar("Processing lines:", s:end - s:lnum + 1, s:orgwin)
endif

if s:settings.number_lines
  let s:margin = strlen(s:end) + 1
else
  let s:margin = 0
endif

if has('folding') && !s:settings.ignore_folding
  let s:foldfillchar = &fillchars[matchend(&fillchars, 'fold:')]
  if s:foldfillchar == ''
    let s:foldfillchar = '-'
  endif
endif
let s:difffillchar = &fillchars[matchend(&fillchars, 'diff:')]
if s:difffillchar == ''
  let s:difffillchar = '-'
endif

let s:foldId = 0

if !s:settings.expand_tabs
  " If keeping tabs, add them to printable characters so we keep them when
  " formatting text (strtrans() doesn't replace printable chars)
  let s:old_isprint = &isprint
  setlocal isprint+=9
endif

while s:lnum <= s:end

  " If there are filler lines for diff mode, show these above the line.
  let s:filler = diff_filler(s:lnum)
  if s:filler > 0
    let s:n = s:filler
    while s:n > 0
      let s:new = repeat(s:difffillchar, 3)

      if s:n > 2 && s:n < s:filler && !s:settings.whole_filler
	let s:new = s:new . " " . s:filler . " inserted lines "
	let s:n = 2
      endif

      if !s:settings.no_pre
	" HTML line wrapping is off--go ahead and fill to the margin
	" TODO: what about when CSS wrapping is turned on?
	let s:new = s:new . repeat(s:difffillchar, &columns - strlen(s:new) - s:margin)
      else
	let s:new = s:new . repeat(s:difffillchar, 3)
      endif

      let s:new = s:HtmlFormat_d(s:new, s:DIFF_D_ID, 0)
      if s:settings.number_lines
	" Indent if line numbering is on. Indent gets style of line number
	" column.
	let s:new = s:HtmlFormat_n(repeat(' ', s:margin), s:LINENR_ID, 0, 0) . s:new
      endif
      if s:settings.dynamic_folds && !s:settings.no_foldcolumn && s:foldcolumn > 0
	" Indent for foldcolumn if there is one. Assume it's empty, there should
	" not be a fold for deleted lines in diff mode.
	let s:new = s:FoldColumn_fill() . s:new
      endif
      call add(s:lines, s:new.s:HtmlEndline)

      let s:n = s:n - 1
    endwhile
    unlet s:n
  endif
  unlet s:filler

  " Start the line with the line number.
  if s:settings.number_lines
    let s:numcol = repeat(' ', s:margin - 1 - strlen(s:lnum)) . s:lnum . ' '
  endif

  let s:new = ""

  if has('folding') && !s:settings.ignore_folding && foldclosed(s:lnum) > -1 && !s:settings.dynamic_folds
    "
    " This is the beginning of a folded block (with no dynamic folding)
    let s:new = foldtextresult(s:lnum)
    if !s:settings.no_pre
      " HTML line wrapping is off--go ahead and fill to the margin
      let s:new = s:new . repeat(s:foldfillchar, &columns - strlen(s:new))
    endif

    " put numcol in a separate group for sake of unselectable text
    let s:new = (s:settings.number_lines ? s:HtmlFormat_n(s:numcol, s:FOLDED_ID, 0, s:lnum): "") . s:HtmlFormat_t(s:new, s:FOLDED_ID, 0)

    " Skip to the end of the fold
    let s:new_lnum = foldclosedend(s:lnum)

    if !s:settings.no_progress
      call s:pgb.incr(s:new_lnum - s:lnum)
    endif

    let s:lnum = s:new_lnum

  else
    "
    " A line that is not folded, or doing dynamic folding.
    "
    let s:line = getline(s:lnum)
    let s:len = strlen(s:line)

    if s:settings.dynamic_folds
      " First insert a closing for any open folds that end on this line
      while !empty(s:foldstack) && get(s:foldstack,0).lastline == s:lnum-1
	let s:new = s:new."</span></span>"
	call remove(s:foldstack, 0)
      endwhile

      " Now insert an opening for any new folds that start on this line
      let s:firstfold = 1
      while !empty(s:allfolds) && get(s:allfolds,0).firstline == s:lnum
	let s:foldId = s:foldId + 1
	let s:new .= "<span id='"
	let s:new .= (exists('g:html_diff_win_num') ? "win".g:html_diff_win_num : "")
	let s:new .= "fold".s:foldId.s:settings.id_suffix."' class='".s:allfolds[0].type."'>"


	" Unless disabled, add a fold column for the opening line of a fold.
	"
	" Note that dynamic folds require using css so we just use css to take
	" care of the leading spaces rather than using &nbsp; in the case of
	" html_no_pre to make it easier
	if !s:settings.no_foldcolumn
	  " add fold column that can open the new fold
	  if s:allfolds[0].level > 1 && s:firstfold
	    let s:new = s:new . s:FoldColumn_build('|', s:allfolds[0].level - 1, 0, "",
		  \ 'toggle-open FoldColumn','javascript:toggleFold("fold'.s:foldstack[0].id.s:settings.id_suffix.'");')
	  endif
	  " add the filler spaces separately from the '+' char so that it can be
	  " shown/hidden separately during a hover unfold
	  let s:new = s:new . s:FoldColumn_build("+", 1, 0, "",
		\ 'toggle-open FoldColumn', 'javascript:toggleFold("fold'.s:foldId.s:settings.id_suffix.'");')
	  " If this is not the last fold we're opening on this line, we need
	  " to keep the filler spaces hidden if the fold is opened by mouse
	  " hover. If it is the last fold to open in the line, we shouldn't hide
	  " them, so don't apply the toggle-filler class.
	  let s:new = s:new . s:FoldColumn_build(" ", 1, s:foldcolumn - s:allfolds[0].level - 1, "",
		\ 'toggle-open FoldColumn'. (get(s:allfolds, 1, {'firstline': 0}).firstline == s:lnum ?" toggle-filler" :""),
		\ 'javascript:toggleFold("fold'.s:foldId.s:settings.id_suffix.'");')

	  " add fold column that can close the new fold
	  " only add extra blank space if we aren't opening another fold on the
	  " same line
	  if get(s:allfolds, 1, {'firstline': 0}).firstline != s:lnum
	    let s:extra_space = s:foldcolumn - s:allfolds[0].level
	  else
	    let s:extra_space = 0
	  endif
	  if s:firstfold
	    " the first fold in a line has '|' characters from folds opened in
	    " previous lines, before the '-' for this fold
	    let s:new .= s:FoldColumn_build('|', s:allfolds[0].level - 1, s:extra_space, '-',
		  \ 'toggle-closed FoldColumn', 'javascript:toggleFold("fold'.s:foldId.s:settings.id_suffix.'");')
	  else
	    " any subsequent folds in the line only add a single '-'
	    let s:new = s:new . s:FoldColumn_build("-", 1, s:extra_space, "",
		  \ 'toggle-closed FoldColumn', 'javascript:toggleFold("fold'.s:foldId.s:settings.id_suffix.'");')
	  endif
	  let s:firstfold = 0
	endif

	" Add fold text, moving the span ending to the next line so collapsing
	" of folds works correctly.
	" Put numcol in a separate group for sake of unselectable text.
	let s:new = s:new . (s:settings.number_lines ? s:HtmlFormat_n(s:numcol, s:FOLDED_ID, 0, 0) : "") . substitute(s:HtmlFormat_t(foldtextresult(s:lnum), s:FOLDED_ID, 0), '</span>', s:HtmlEndline.'\n\0', '')
	let s:new = s:new . "<span class='fulltext'>"

	" open the fold now that we have the fold text to allow retrieval of
	" fold text for subsequent folds
	execute s:lnum."foldopen"
	call insert(s:foldstack, remove(s:allfolds,0))
	let s:foldstack[0].id = s:foldId
      endwhile

      " Unless disabled, add a fold column for other lines.
      "
      " Note that dynamic folds require using css so we just use css to take
      " care of the leading spaces rather than using &nbsp; in the case of
      " html_no_pre to make it easier
      if !s:settings.no_foldcolumn
	if empty(s:foldstack)
	  " add the empty foldcolumn for unfolded lines if there is a fold
	  " column at all
	  if s:foldcolumn > 0
	    let s:new = s:new . s:FoldColumn_fill()
	  endif
	else
	  " add the fold column for folds not on the opening line
	  if get(s:foldstack, 0).firstline < s:lnum
	    let s:new = s:new . s:FoldColumn_build('|', s:foldstack[0].level, s:foldcolumn - s:foldstack[0].level, "",
		  \ 'FoldColumn', 'javascript:toggleFold("fold'.s:foldstack[0].id.s:settings.id_suffix.'");')
	  endif
	endif
      endif
    endif

    " Now continue with the unfolded line text
    if s:settings.number_lines
      let s:new = s:new . s:HtmlFormat_n(s:numcol, s:LINENR_ID, 0, s:lnum)
    elseif s:settings.line_ids
      let s:new = s:new . s:HtmlFormat_n("", s:LINENR_ID, 0, s:lnum)
    endif

    " Get the diff attribute, if any.
    let s:diffattr = diff_hlID(s:lnum, 1)

    " initialize conceal info to act like not concealed, just in case
    let s:concealinfo = [0, '']

    " Loop over each character in the line
    let s:col = 1

    " most of the time we won't use the diff_id, initialize to zero
    let s:diff_id = 0

    while s:col <= s:len || (s:col == 1 && s:diffattr)
      let s:startcol = s:col " The start column for processing text
      if !s:settings.ignore_conceal && has('conceal')
	let s:concealinfo = synconcealed(s:lnum, s:col)
      endif
      if !s:settings.ignore_conceal && s:concealinfo[0]
	let s:col = s:col + 1
	" Speed loop (it's small - that's the trick)
	" Go along till we find a change in the match sequence number (ending
	" the specific concealed region) or until there are no more concealed
	" characters.
	while s:col <= s:len && s:concealinfo == synconcealed(s:lnum, s:col) | let s:col = s:col + 1 | endwhile
      elseif s:diffattr
	let s:diff_id = diff_hlID(s:lnum, s:col)
	let s:id = synID(s:lnum, s:col, 1)
	let s:col = s:col + 1
	" Speed loop (it's small - that's the trick)
	" Go along till we find a change in hlID
	while s:col <= s:len && s:id == synID(s:lnum, s:col, 1)
	      \   && s:diff_id == diff_hlID(s:lnum, s:col) |
	      \     let s:col = s:col + 1 |
	      \ endwhile
	if s:len < &columns && !s:settings.no_pre
	  " Add spaces at the end of the raw text line to extend the changed
	  " line to the full width.
	  let s:line = s:line . repeat(' ', &columns - virtcol([s:lnum, s:len]) - s:margin)
	  let s:len = &columns
	endif
      else
	let s:id = synID(s:lnum, s:col, 1)
	let s:col = s:col + 1
	" Speed loop (it's small - that's the trick)
	" Go along till we find a change in synID
	while s:col <= s:len && s:id == synID(s:lnum, s:col, 1) | let s:col = s:col + 1 | endwhile
      endif

      if s:settings.ignore_conceal || !s:concealinfo[0]
	" Expand tabs if needed
	let s:expandedtab = strpart(s:line, s:startcol - 1, s:col - s:startcol)
	if s:settings.expand_tabs
	  let s:offset = 0
	  let s:idx = stridx(s:expandedtab, "\t")
	  while s:idx >= 0
	    if has("multi_byte_encoding")
	      if s:startcol + s:idx == 1
		let s:i = &ts
	      else
		if s:idx == 0
		  let s:prevc = matchstr(s:line, '.\%' . (s:startcol + s:idx + s:offset) . 'c')
		else
		  let s:prevc = matchstr(s:expandedtab, '.\%' . (s:idx + 1) . 'c')
		endif
		let s:vcol = virtcol([s:lnum, s:startcol + s:idx + s:offset - len(s:prevc)])
		let s:i = &ts - (s:vcol % &ts)
	      endif
	      let s:offset -= s:i - 1
	    else
	      let s:i = &ts - ((s:idx + s:startcol - 1) % &ts)
	    endif
	    let s:expandedtab = substitute(s:expandedtab, '\t', repeat(' ', s:i), '')
	    let s:idx = stridx(s:expandedtab, "\t")
	  endwhile
	end

	" get the highlight group name to use
	let s:id = synIDtrans(s:id)
      else
	" use Conceal highlighting for concealed text
	let s:id = s:CONCEAL_ID
	let s:expandedtab = s:concealinfo[1]
      endif

      " Output the text with the same synID, with class set to the highlight ID
      " name, unless it has been concealed completely.
      if strlen(s:expandedtab) > 0
	let s:new = s:new . s:HtmlFormat(s:expandedtab,  s:id, s:diff_id, "", 0)
      endif
    endwhile
  endif

  call extend(s:lines, split(s:new.s:HtmlEndline, '\n', 1))
  if !s:settings.no_progress && s:pgb.needs_redraw
    redrawstatus
    let s:pgb.needs_redraw = 0
  endif
  let s:lnum = s:lnum + 1

  if !s:settings.no_progress
    call s:pgb.incr()
  endif
endwhile

if s:settings.dynamic_folds
  " finish off any open folds
  while !empty(s:foldstack)
    let s:lines[-1].="</span></span>"
    call remove(s:foldstack, 0)
  endwhile

  " add fold column to the style list if not already there
  let s:id = s:FOLD_C_ID
  if !has_key(s:stylelist, s:id)
    let s:stylelist[s:id] = '.FoldColumn { ' . s:CSS1(s:id) . '}'
  endif
endif

if s:settings.no_pre
  if !s:settings.use_css
    " Close off the font tag that encapsulates the whole <body>
    call extend(s:lines, ["</font>", "</body>", "</html>"])
  else
    call extend(s:lines, ["</div>", "</body>", "</html>"])
  endif
else
  call extend(s:lines, ["</pre>", "</body>", "</html>"])
endif

exe s:newwin . "wincmd w"
call setline(1, s:lines)
unlet s:lines

" Mangle modelines so Vim doesn't try to use HTML text as a modeline if editing
" this file in the future; need to do this after generating all the text in case
" the modeline text has different highlight groups which all turn out to be
" stripped from the final output.
%s!\v(%(^|\s+)%([Vv]i%(m%([<=>]?\d+)?)?|ex)):!\1\&#0058;!ge

" The generated HTML is admittedly ugly and takes a LONG time to fold.
" Make sure the user doesn't do syntax folding when loading a generated file,
" using a modeline.
call append(line('$'), "<!-- vim: set foldmethod=manual : -->")

" Now, when we finally know which, we define the colors and styles
if s:settings.use_css
  1;/<style type="text/+1
endif

" Normal/global attributes
" For Netscape 4, set <body> attributes too, though, strictly speaking, it's
" incorrect.
if s:settings.use_css
  if s:settings.no_pre
    call append('.', "body { color: " . s:fgc . "; background-color: " . s:bgc . "; font-family: ". s:htmlfont ."; }")
    +
  else
    call append('.', "pre { " . s:whitespace . "font-family: ". s:htmlfont ."; color: " . s:fgc . "; background-color: " . s:bgc . "; }")
    +
    yank
    put
    execute "normal! ^cwbody\e"
    " body should not have the wrap formatting, only the pre section
    if s:whitespace != ''
      exec 's#'.s:whitespace
    endif
  endif
  " fix browser inconsistencies (sometimes within the same browser) of different
  " default font size for different elements
  call append('.', '* { font-size: 1em; }')
  +
  " if we use any input elements for unselectable content, make sure they look
  " like normal text
  if !empty(s:settings.prevent_copy)
    call append('.', 'input { border: none; margin: 0; padding: 0; font-family: '.s:htmlfont.'; }')
    +
    " ch units for browsers which support them, em units for a somewhat
    " reasonable fallback. Also make sure the special elements for size
    " calculations aren't seen.
    call append('.', [
	  \ "input[size='1'] { width: 1em; width: 1ch; }",
	  \ "input[size='2'] { width: 2em; width: 2ch; }",
	  \ "input[size='3'] { width: 3em; width: 3ch; }",
	  \ "input[size='4'] { width: 4em; width: 4ch; }",
	  \ "input[size='5'] { width: 5em; width: 5ch; }",
	  \ "input[size='6'] { width: 6em; width: 6ch; }",
	  \ "input[size='7'] { width: 7em; width: 7ch; }",
	  \ "input[size='8'] { width: 8em; width: 8ch; }",
	  \ "input[size='9'] { width: 9em; width: 9ch; }",
	  \ "input[size='10'] { width: 10em; width: 10ch; }",
	  \ "input[size='11'] { width: 11em; width: 11ch; }",
	  \ "input[size='12'] { width: 12em; width: 12ch; }",
	  \ "input[size='13'] { width: 13em; width: 13ch; }",
	  \ "input[size='14'] { width: 14em; width: 14ch; }",
	  \ "input[size='15'] { width: 15em; width: 15ch; }",
	  \ "input[size='16'] { width: 16em; width: 16ch; }",
	  \ "input[size='17'] { width: 17em; width: 17ch; }",
	  \ "input[size='18'] { width: 18em; width: 18ch; }",
	  \ "input[size='19'] { width: 19em; width: 19ch; }",
	  \ "input[size='20'] { width: 20em; width: 20ch; }",
	  \ "#oneCharWidth, #oneEmWidth, #oneInputWidth { padding: 0; margin: 0; position: absolute; left: -999999px; visibility: hidden; }"
	  \ ])
    +21
    for w in range(5, 100, 5)
      let base = 0.01 * w
      call append('.', join(map(range(1,20), "'.em'.w.' input[size='''.v:val.'''] { width: '.string(v:val*base).'em; }'")))
      +
    endfor
    if s:settings.prevent_copy =~# 'f'
    " Make the cursor show active fold columns as active areas, and empty fold
    " columns as not interactive.
      call append('.', ['input.FoldColumn { cursor: pointer; }',
	    \ 'input.FoldColumn[value=""] { cursor: default; }'
	    \ ])
      +2
    endif
    " make line number column show as non-interactive if not selectable
    if s:settings.prevent_copy =~# 'n'
      call append('.', 'input.LineNr { cursor: default; }')
      +
    endif
    " make fold text and line number column within fold text show as
    " non-interactive if not selectable
    if (s:settings.prevent_copy =~# 'n' || s:settings.prevent_copy =~# 't') && !s:settings.ignore_folding
      call append('.', 'input.Folded { cursor: default; }')
      +
    endif
  endif
else
  execute '%s:<body\([^>]*\):<body bgcolor="' . s:bgc . '" text="' . s:fgc . '"\1>\r<font face="'. s:htmlfont .'"'
endif

" Gather attributes for all other classes. Do diff first so that normal
" highlight groups are inserted before it.
if s:settings.use_css
  if s:diff_mode
    call append('.', filter(map(keys(s:diffstylelist), "s:diffstylelist[v:val]"), 'v:val != ""'))
  endif
  if !empty(s:stylelist)
    call append('.', filter(map(keys(s:stylelist), "s:stylelist[v:val]"), 'v:val != ""'))
  endif
endif

" Add hyperlinks
" TODO: add option to not do this? Maybe just make the color the same as the
" text highlight group normally is?
%s+\(https\=://\S\{-}\)\(\([.,;:}]\=\(\s\|$\)\)\|[\\"'<>]\|&gt;\|&lt;\|&quot;\)+<a href="\1">\1</a>\2+ge

" The DTD
if s:settings.use_xhtml
  exe "normal! gg$a\n<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">"
elseif s:settings.use_css && !s:settings.no_pre
  exe "normal! gg0i<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01//EN\" \"http://www.w3.org/TR/html4/strict.dtd\">\n"
else
  exe "normal! gg0i<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" \"http://www.w3.org/TR/html4/loose.dtd\">\n"
endif

if s:settings.use_xhtml
  exe "normal! gg/<html/e\na xmlns=\"http://www.w3.org/1999/xhtml\"\e"
endif

" Cleanup
%s:\s\+$::e

" Restore old settings (new window first)
"
" Don't bother restoring foldmethod in case it was syntax because the markup is
" so weirdly formatted it can take a LONG time.
let &l:foldenable = s:old_fen
let &report = s:old_report
let &title = s:old_title
let &icon = s:old_icon
let &paste = s:old_paste
let &magic = s:old_magic
let @/ = s:old_search
let &more = s:old_more

" switch to original window to restore those settings
exe s:orgwin . "wincmd w"

if !s:settings.expand_tabs
  let &l:isprint = s:old_isprint
endif
let &l:stl = s:origwin_stl
let &l:et = s:old_et
let &l:scrollbind = s:old_bind

" and back to the new window again to end there
exe s:newwin . "wincmd w"

let &l:stl = s:newwin_stl
exec 'resize' s:old_winheight
let &l:winfixheight = s:old_winfixheight

let &ls=s:ls

" Save a little bit of memory (worth doing?)
unlet s:htmlfont s:whitespace
unlet s:old_et s:old_paste s:old_icon s:old_report s:old_title s:old_search
unlet s:old_magic s:old_more s:old_fen s:old_winheight
unlet! s:old_isprint
unlet s:whatterm s:stylelist s:diffstylelist s:lnum s:end s:margin s:fgc s:bgc s:old_winfixheight
unlet! s:col s:id s:attr s:len s:line s:new s:expandedtab s:concealinfo s:diff_mode
unlet! s:orgwin s:newwin s:orgbufnr s:idx s:i s:offset s:ls s:origwin_stl
unlet! s:newwin_stl s:current_syntax
if !v:profiling
  delfunc s:HtmlColor
  delfunc s:HtmlFormat
  delfunc s:CSS1
  delfunc s:BuildStyleWrapper
  if !s:settings.use_css
    delfunc s:HtmlOpening
    delfunc s:HtmlClosing
  endif
  if s:settings.dynamic_folds
    delfunc s:FoldCompare
  endif

  if !s:settings.no_progress
    delfunc s:ProgressBar
    delfunc s:progressbar.paint
    delfunc s:progressbar.incr
    unlet s:pgb s:progressbar
  endif
endif

unlet! s:new_lnum s:diffattr s:difffillchar s:foldfillchar s:HtmlSpace
unlet! s:LeadingSpace s:HtmlEndline s:firstfold s:numcol s:foldcolumn
unlet s:foldstack s:allfolds s:foldId s:settings

let &cpo = s:cpo_sav
unlet! s:cpo_sav

" Make sure any patches will probably use consistent indent
"   vim: ts=8 sw=2 sts=2 noet