From aed8ce9da277f5ecffe968b324f242c41c3b752a Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 10:50:31 +0200 Subject: Adding upstream version 2:9.0.1378. Signed-off-by: Daniel Baumann --- runtime/syntax/2html.vim | 1995 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 1995 insertions(+) create mode 100644 runtime/syntax/2html.vim (limited to 'runtime/syntax/2html.vim') diff --git a/runtime/syntax/2html.vim b/runtime/syntax/2html.vim new file mode 100644 index 0000000..69780cf --- /dev/null +++ b/runtime/syntax/2html.vim @@ -0,0 +1,1995 @@ +" Vim syntax support file +" Maintainer: Ben Fritz +" Last Change: 2023 Jan 01 +" +" Additional contributors: +" +" Original by Bram Moolenaar +" Modified by David Ne\v{c}as (Yeti) +" XHTML support by Panagiotis Issaris +" Made w3 compliant by Edd Barrett +" Added html_font. Edd Barrett +" 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 +let s:ei_sav = &eventignore +set cpo&vim + +" HTML filetype can take a while to load/highlight if the destination file +" already exists. +set eventignore+=FileType + +let s:end=line('$') + +" Font +if exists("g:html_font") + if type(g:html_font) == type([]) + let s:htmlfont = "'". join(g:html_font,"','") . "', monospace" + else + let s:htmlfont = "'". g:html_font . "', monospace" + endif +else + let s:htmlfont = "monospace" +endif + +let s:settings = tohtml#GetUserSettings() + +if s:settings.use_xhtml + let s:html5 = 0 +elseif s:settings.use_css && !s:settings.no_pre + let s:html5 = 1 +else + let s:html5 = 0 +endif + +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 gui colors are not supported, we can only guess the colors. +" TODO - is this true anymore? Is there a way to ask the terminal what colors +" each number means or read them from some file? +if &termguicolors || 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 . '' + let x = s:HtmlColor(synIDattr(a:id, "bg#", s:whatterm)) + let a = a . '' + else + let x = s:HtmlColor(synIDattr(a:id, "bg#", s:whatterm)) + if x != "" + let a = a . '' + elseif !empty(a:extra_attrs) + let a = a . '' + endif + let x = s:HtmlColor(synIDattr(a:id, "fg#", s:whatterm)) + if x != "" | let a = a . '' | endif + endif + if synIDattr(a:id, "bold") | let a = a . "" | endif + if synIDattr(a:id, "italic") | let a = a . "" | endif + if synIDattr(a:id, "underline") | let a = a . "" | 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 . "" | endif + if synIDattr(a:id, "italic") | let a = a . "" | endif + if synIDattr(a:id, "bold") | let a = a . "" | endif + if synIDattr(a:id, "inverse") + let a = a . '' + else + let x = s:HtmlColor(synIDattr(a:id, "fg#", s:whatterm)) + if x != "" | let a = a . '' | endif + let x = s:HtmlColor(synIDattr(a:id, "bg#", s:whatterm)) + if x != "" || a:has_extra_attrs | let a = a . '' | 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 "".a:text.""', + \ ' 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 "".a:text.""' + \ ] + else + + " New method: use generated content in the CSS. The only thing needed here + " is a span with no content, with an attribute holding the desired text. + " + " Old method: use an element when text is unsectable. This is still + " used in conditional comments for Internet Explorer, where the new method + " doesn't work. + " + " Wrap the in a to allow fixing the stupid bug in some fonts + " which cause browsers to display a 1px gap between lines when these + " 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 "' + endif + let wrapperfunc_lines[-1] .= '"' + let wrapperfunc_lines += [ + \ ' else', + \ ' return "".a:text.""' + \ ] + 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, '&', '\&', 'g') + let formatted = substitute(formatted, '<', '\<', 'g') + let formatted = substitute(formatted, '>', '\>', 'g') + let formatted = substitute(formatted, '"', '\"', 'g') + " ' 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, '"', '\'', '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", '
', '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 empty but lnr will + " always be non-zero, however we don't want to use the 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' + if s:settings.use_input_for_pc ==# 'none' + " Simply space-pad to the desired width inside the generated content (note + " that the FoldColumn definition includes a whitespace:pre rule) + function! s:FoldColumn_build(char, len, numfill, char2, class, click) + return "" + endfun + function! s:FoldColumn_fill() + return s:HtmlFormat(repeat(' ', s:foldcolumn), s:FOLD_C_ID, 0, "", 1) + endfun + else + " Note the 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. + " + " 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. + let build_fun_lines = [ + \ 'function! s:FoldColumn_build(char, len, numfill, char2, class, click)', + \ ' let l:input_open = "" : "''>")' + \ ] + if s:settings.use_input_for_pc ==# 'fallback' + let build_fun_lines += [ + \ ' let l:gen_content_link ='. + \ ' ""' + \ ] + endif + let build_fun_lines += [ + \ ' return "".'. + \ ' l:input_open.l:common_attrs.repeat(a:char, a:len).(a:char2).'. + \ ' l:input_close.'. + \ (s:settings.use_input_for_pc ==# 'fallback' ? 'l:gen_content_link.' : ""). + \ ' ""', + \ 'endfun' + \ ] + " create the function we built line by line above + exec join(build_fun_lines, "\n") + + function! s:FoldColumn_fill() + return s:FoldColumn_build(' ', s:foldcolumn, 0, '', 'FoldColumn', '') + endfun + endif +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 "". + \ repeat(a:char, a:len).a:char2.repeat(' ', a:numfill). + \ "" + 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 + +" If the user is sourcing this script directly then the plugin version isn't +" known because the main plugin script didn't load. In the usual case where the +" user still has the full Vim runtime installed, or has this full plugin +" installed in a package or something, then we can extract the version from the +" main plugin file at it's usual spot relative to this file. Otherwise the user +" is assembling their runtime piecemeal and we have no idea what versions of +" other files may be present so don't even try to make a guess or assume the +" presence of other specific files with specific meaning. +" +" We don't want to actually source the main plugin file here because the user +" may have a good reason not to (e.g. they define their own TOhtml command or +" something). +" +" If this seems way too complicated and convoluted, it is. Probably I should +" have put the version information in the autoload file from the start. But the +" version has been in the global variable for so long that changing it could +" break a lot of user scripts. +if exists("g:loaded_2html_plugin") + let s:pluginversion = g:loaded_2html_plugin +else + if !exists("g:unloaded_tohtml_plugin") + let s:main_plugin_path = expand(":p:h:h")."/plugin/tohtml.vim" + if filereadable(s:main_plugin_path) + let s:lines = readfile(s:main_plugin_path, "", 20) + call filter(s:lines, 'v:val =~ "loaded_2html_plugin = "') + if empty(s:lines) + let g:unloaded_tohtml_plugin = "unknown" + else + let g:unloaded_tohtml_plugin = substitute(s:lines[0], '.*loaded_2html_plugin = \([''"]\)\(\%(\1\@!.\)\+\)\1', '\2', '') + endif + unlet s:lines + else + let g:unloaded_tohtml_plugin = "unknown" + endif + unlet s:main_plugin_path + endif + let s:pluginversion = g:unloaded_tohtml_plugin +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, "") + else + call add(s:lines, "") + 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 = '", + \ ""]) + " 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 + if s:html5 + call add(s:lines, '".expand("%:p:~").""), + \ ("", + \ s:settings.use_xhtml ? "" : "", + \] + else + " if we aren't doing hover_unfold, use CSS 1 only + call extend(s:lines, [ + \ ".FoldColumn { text-decoration: none; white-space: pre; }", + \ ".open-fold .fulltext { display: inline; }", + \ ".open-fold span.Folded { display: none; }", + \ ".open-fold .toggle-open { display: none; }", + \ ".open-fold .toggle-closed { display: inline; }", + \ "", + \ ".closed-fold .fulltext { display: none; }", + \ ".closed-fold span.Folded { display: inline; }", + \ ".closed-fold .toggle-open { display: inline; }", + \ ".closed-fold .toggle-closed { display: none; }", + \]) + endif + endif + " else we aren't doing any dynamic folding, no need for any special rules + + call extend(s:lines, [ + \ s:settings.use_xhtml ? "" : '-->', + \ "", + \]) + call extend(s:lines, s:ieonly) + unlet s:ieonly + endif + + let s:uses_script = s:settings.dynamic_folds || s:settings.line_ids + + " insert script tag if needed + if s:uses_script + call extend(s:lines, [ + \ "", + \ "", + \ s:settings.use_xhtml ? '//' : '-->', + \ "" + \ ]) + endif + + call extend(s:lines, ["", + \ ""]) +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, ["
"]) + endif +else + call extend(s:lines, ["
"])
+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={}
+
+  " Progressbar specific functions
+
+  func! s:SetProgbarColor()
+    if hlID("TOhtmlProgress") != 0
+      hi! link TOhtmlProgress_auto TOhtmlProgress
+    elseif hlID("TOhtmlProgress_auto")==0 ||
+       \ !exists("s:last_colors_name") || !exists("g:colors_name") ||
+       \ g:colors_name != s:last_colors_name
+      let s:last_colors_name = exists("g:colors_name") ? g:colors_name : "none"
+
+      let l:diffatr = synIDattr(hlID("DiffDelete"), "reverse", s:whatterm) ? "fg#" : "bg#"
+      let l:stlatr = synIDattr(hlID("StatusLine"), "reverse", s:whatterm) ? "fg#" : "bg#"
+
+      let l:progbar_color = synIDattr(hlID("DiffDelete"), l:diffatr, s:whatterm)
+      let l:stl_color = synIDattr(hlID("StatusLine"), l:stlatr, s:whatterm)
+
+      if "" == l:progbar_color
+	let l:progbar_color = synIDattr(hlID("DiffDelete"), "reverse", s:whatterm) ? s:fgc : s:bgc
+      endif
+      if "" == l:stl_color
+	let l:stl_color = synIDattr(hlID("StatusLine"), "reverse", s:whatterm) ? s:fgc : s:bgc
+      endif
+
+      if l:progbar_color == l:stl_color
+	if s:whatterm == 'cterm'
+	  if l:progbar_color >= (&t_Co/2)
+	    let l:progbar_color-=1
+	  else
+	    let l:progbar_color+=1
+	  endif
+	else
+	  let l:rgb = map(matchlist(l:progbar_color, '#\zs\x\x\ze\(\x\x\)\(\x\x\)')[:2], 'str2nr(v:val, 16)')
+	  let l:avg = (l:rgb[0] + l:rgb[1] + l:rgb[2])/3
+	  if l:avg >= 128
+	    let l:avg_new = l:avg
+	    while l:avg - l:avg_new < 0x15
+	      let l:rgb = map(l:rgb, 'v:val * 3 / 4')
+	      let l:avg_new = (l:rgb[0] + l:rgb[1] + l:rgb[2])/3
+	    endwhile
+	  else
+	    let l:avg_new = l:avg
+	    while l:avg_new - l:avg < 0x15
+	      let l:rgb = map(l:rgb, 'min([max([v:val, 4]) * 5 / 4, 255])')
+	      let l:avg_new = (l:rgb[0] + l:rgb[1] + l:rgb[2])/3
+	    endwhile
+	  endif
+	  let l:progbar_color = printf("#%02x%02x%02x", l:rgb[0], l:rgb[1], l:rgb[2])
+	endif
+	echomsg "diff detected progbar color set to" l:progbar_color
+      endif
+      exe "hi TOhtmlProgress_auto" s:whatterm."bg=".l:progbar_color
+    endif
+  endfun
+
+  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' : 'TOhtmlProgress_auto' , '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
+
+  call s:SetProgbarColor()
+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.""
+	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 .= ""
+
+
+	" 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   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), '', s:HtmlEndline.'\n\0', '')
+	let s:new = s:new . ""
+
+	" 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   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")
+	  let s:tablist = split(&vts,',')
+	  if empty(s:tablist)
+	    let s:tablist = [ &ts ]
+	  endif
+	  let s:tabidx = 0
+	  let s:tabwidth = 0
+	  while s:idx >= 0
+	    if s:startcol + s:idx == 1
+	      let s:i = s:tablist[0]
+	    else
+	      " Get the character, which could be multiple bytes, which falls
+	      " immediately before the found tab. Extract it by matching a
+	      " character just prior to the column where the tab matches.
+	      " We'll use this to get the byte index of the character
+	      " immediately preceding the tab, so we can then look up the
+	      " virtual column that character appears in, to determine how
+	      " much of the current tabstop has been used up.
+	      if s:idx == 0
+		" if the found tab is the first character in the text being
+		" processed, we need to get the character prior to the text,
+		" given by startcol.
+		let s:prevc = matchstr(s:line, '.\%' . (s:startcol + s:offset) . 'c')
+	      else
+		" Otherwise, the byte index of the tab into s:expandedtab is
+		" given by s:idx.
+		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)])
+
+	      " find the tabstop interval to use for the tab we just found. Keep
+	      " adding tabstops (which could be variable) until we would exceed
+	      " the virtual screen position of the start of the found tab.
+	      while s:vcol >= s:tabwidth + s:tablist[s:tabidx]
+		let s:tabwidth += s:tablist[s:tabidx]
+		if s:tabidx < len(s:tablist)-1
+		  let s:tabidx = s:tabidx+1
+		endif
+	      endwhile
+	      let s:i = s:tablist[s:tabidx] - (s:vcol - s:tabwidth)
+	    endif
+	    " update offset to keep the index within the line corresponding to
+	    " actual tab characters instead of replaced spaces; s:idx reflects
+	    " replaced spaces in s:expandedtab, s:offset cancels out all but
+	    " the tab character itself.
+	    let s:offset -= s:i - 1
+	    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].=""
+    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 
+    call extend(s:lines, [""])
+  else
+    call extend(s:lines, ["
"]) + endif +else + call extend(s:lines, [""]) +endif +if !s:settings.no_doc + call extend(s:lines, ["", ""]) +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\:!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. +if !s:settings.no_modeline + call append(line('$'), "") +endif + +" Now, when we finally know which, we define the colors and styles +if s:settings.use_css && !s:settings.no_doc + 1;//+1 + + " Normal/global attributes + 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) + if s:settings.use_input_for_pc !=# "none" + 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. + for w in range(1, 20, 1) + call append('.', [ + \ "input[size='".w."'] { width: ".w."em; width: ".w."ch; }" + \ ]) + + + endfor + endif + + if s:settings.use_input_for_pc !=# 'all' + let s:unselectable_styles = [] + if s:settings.prevent_copy =~# 'f' + call add(s:unselectable_styles, 'FoldColumn') + endif + if s:settings.prevent_copy =~# 'n' + call add(s:unselectable_styles, 'LineNr') + endif + if s:settings.prevent_copy =~# 't' && !s:settings.ignore_folding + call add(s:unselectable_styles, 'Folded') + endif + if s:settings.prevent_copy =~# 'd' + call add(s:unselectable_styles, 'DiffDelete') + endif + if s:settings.use_input_for_pc !=# 'none' + call append('.', [ + \ '/* Note: IE does not support @supports conditionals, but also does not fully support', + \ ' "content:" with custom content, so we *want* the check to fail */', + \ '@supports ( content: attr(data-custom-content) ) {' + \ ]) + +3 + endif + " The line number column inside the foldtext is styled just like the fold + " text in Vim, but it should use the prevent_copy settings of line number + " rather than fold text. Apply the prevent_copy styles to foldtext + " specifically for line numbers, which always come after the fold column, + " or at the beginning of the line. + if s:settings.prevent_copy =~# 'n' && !s:settings.ignore_folding + call append('.', [ + \ ' .FoldColumn + .Folded, .Folded:first-child { user-select: none; }', + \ ' .FoldColumn + [data-Folded-content]::before, [data-Folded-content]:first-child::before { content: attr(data-Folded-content); }', + \ ' .FoldColumn + [data-Folded-content]::before, [data-Folded-content]:first-child::before { padding-bottom: 1px; display: inline-block; /* match the 1-px padding of standard items with background */ }', + \ ' .FoldColumn + span[data-Folded-content]::before, [data-Folded-content]:first-child::before { cursor: default; }', + \ ]) + +4 + endif + for s:style_name in s:unselectable_styles + call append('.', [ + \ ' .'.s:style_name.' { user-select: none; }', + \ ' [data-'.s:style_name.'-content]::before { content: attr(data-'.s:style_name.'-content); }', + \ ' [data-'.s:style_name.'-content]::before { padding-bottom: 1px; display: inline-block; /* match the 1-px padding of standard items with background */ }', + \ ' span[data-'.s:style_name.'-content]::before { cursor: default; }', + \ ]) + +4 + endfor + if s:settings.use_input_for_pc !=# 'none' + call append('.', [ + \ ' input { display: none; }', + \ '}' + \ ]) + +2 + endif + unlet s:unselectable_styles + endif + + " Fix mouse cursor shape for the fallback method of uncopyable text + if s:settings.use_input_for_pc !=# 'none' + 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="'.repeat(' ', s:foldcolumn).'"] { cursor: default; }' + \ ]) + +2 + if s:settings.use_input_for_pc !=# 'all' + call append('.', [ + \ 'a[data-FoldColumn-content="'.repeat(' ', s:foldcolumn).'"] { cursor: default; }' + \ ]) + +1 + end + 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 + " make diff filler show as non-interactive if not selectable + if s:settings.prevent_copy =~# 'd' + call append('.', 'input.DiffDelete { cursor: default; }') + + + endif + endif + endif +endif + +if !s:settings.use_css && !s:settings.no_doc + " For Netscape 4, set attributes too, though, strictly speaking, it's + " incorrect. + execute '%s:]*\):\r]\|>\|<\|"\)+\1\2+ge +endif + +" The DTD +if !s:settings.no_doc + if s:settings.use_xhtml + exe "normal! gg$a\n" + elseif s:html5 + exe "normal! gg0i\n" + else + exe "normal! gg0i\n" + endif +endif + +if s:settings.use_xhtml && !s:settings.no_doc + exe "normal! gg/