diff -r 000000000000 -r 1918ee327afb src/gui/text/qtexthtmlparser.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/gui/text/qtexthtmlparser.cpp Mon Jan 11 14:00:40 2010 +0000 @@ -0,0 +1,1886 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qtexthtmlparser_p.h" + +#include +#include +#include +#include +#include +#include + +#include "qtextdocument.h" +#include "qtextformat_p.h" +#include "qtextdocument_p.h" +#include "qtextcursor.h" +#include "qfont_p.h" +#include "private/qunicodetables_p.h" +#include "private/qfunctions_p.h" + +#ifndef QT_NO_TEXTHTMLPARSER + +QT_BEGIN_NAMESPACE + +// see also tst_qtextdocumentfragment.cpp +#define MAX_ENTITY 258 +static const struct QTextHtmlEntity { const char *name; quint16 code; } entities[MAX_ENTITY]= { + { "AElig", 0x00c6 }, + { "AMP", 38 }, + { "Aacute", 0x00c1 }, + { "Acirc", 0x00c2 }, + { "Agrave", 0x00c0 }, + { "Alpha", 0x0391 }, + { "Aring", 0x00c5 }, + { "Atilde", 0x00c3 }, + { "Auml", 0x00c4 }, + { "Beta", 0x0392 }, + { "Ccedil", 0x00c7 }, + { "Chi", 0x03a7 }, + { "Dagger", 0x2021 }, + { "Delta", 0x0394 }, + { "ETH", 0x00d0 }, + { "Eacute", 0x00c9 }, + { "Ecirc", 0x00ca }, + { "Egrave", 0x00c8 }, + { "Epsilon", 0x0395 }, + { "Eta", 0x0397 }, + { "Euml", 0x00cb }, + { "GT", 62 }, + { "Gamma", 0x0393 }, + { "Iacute", 0x00cd }, + { "Icirc", 0x00ce }, + { "Igrave", 0x00cc }, + { "Iota", 0x0399 }, + { "Iuml", 0x00cf }, + { "Kappa", 0x039a }, + { "LT", 60 }, + { "Lambda", 0x039b }, + { "Mu", 0x039c }, + { "Ntilde", 0x00d1 }, + { "Nu", 0x039d }, + { "OElig", 0x0152 }, + { "Oacute", 0x00d3 }, + { "Ocirc", 0x00d4 }, + { "Ograve", 0x00d2 }, + { "Omega", 0x03a9 }, + { "Omicron", 0x039f }, + { "Oslash", 0x00d8 }, + { "Otilde", 0x00d5 }, + { "Ouml", 0x00d6 }, + { "Phi", 0x03a6 }, + { "Pi", 0x03a0 }, + { "Prime", 0x2033 }, + { "Psi", 0x03a8 }, + { "QUOT", 34 }, + { "Rho", 0x03a1 }, + { "Scaron", 0x0160 }, + { "Sigma", 0x03a3 }, + { "THORN", 0x00de }, + { "Tau", 0x03a4 }, + { "Theta", 0x0398 }, + { "Uacute", 0x00da }, + { "Ucirc", 0x00db }, + { "Ugrave", 0x00d9 }, + { "Upsilon", 0x03a5 }, + { "Uuml", 0x00dc }, + { "Xi", 0x039e }, + { "Yacute", 0x00dd }, + { "Yuml", 0x0178 }, + { "Zeta", 0x0396 }, + { "aacute", 0x00e1 }, + { "acirc", 0x00e2 }, + { "acute", 0x00b4 }, + { "aelig", 0x00e6 }, + { "agrave", 0x00e0 }, + { "alefsym", 0x2135 }, + { "alpha", 0x03b1 }, + { "amp", 38 }, + { "and", 0x22a5 }, + { "ang", 0x2220 }, + { "apos", 0x0027 }, + { "aring", 0x00e5 }, + { "asymp", 0x2248 }, + { "atilde", 0x00e3 }, + { "auml", 0x00e4 }, + { "bdquo", 0x201e }, + { "beta", 0x03b2 }, + { "brvbar", 0x00a6 }, + { "bull", 0x2022 }, + { "cap", 0x2229 }, + { "ccedil", 0x00e7 }, + { "cedil", 0x00b8 }, + { "cent", 0x00a2 }, + { "chi", 0x03c7 }, + { "circ", 0x02c6 }, + { "clubs", 0x2663 }, + { "cong", 0x2245 }, + { "copy", 0x00a9 }, + { "crarr", 0x21b5 }, + { "cup", 0x222a }, + { "curren", 0x00a4 }, + { "dArr", 0x21d3 }, + { "dagger", 0x2020 }, + { "darr", 0x2193 }, + { "deg", 0x00b0 }, + { "delta", 0x03b4 }, + { "diams", 0x2666 }, + { "divide", 0x00f7 }, + { "eacute", 0x00e9 }, + { "ecirc", 0x00ea }, + { "egrave", 0x00e8 }, + { "empty", 0x2205 }, + { "emsp", 0x2003 }, + { "ensp", 0x2002 }, + { "epsilon", 0x03b5 }, + { "equiv", 0x2261 }, + { "eta", 0x03b7 }, + { "eth", 0x00f0 }, + { "euml", 0x00eb }, + { "euro", 0x20ac }, + { "exist", 0x2203 }, + { "fnof", 0x0192 }, + { "forall", 0x2200 }, + { "frac12", 0x00bd }, + { "frac14", 0x00bc }, + { "frac34", 0x00be }, + { "frasl", 0x2044 }, + { "gamma", 0x03b3 }, + { "ge", 0x2265 }, + { "gt", 62 }, + { "hArr", 0x21d4 }, + { "harr", 0x2194 }, + { "hearts", 0x2665 }, + { "hellip", 0x2026 }, + { "iacute", 0x00ed }, + { "icirc", 0x00ee }, + { "iexcl", 0x00a1 }, + { "igrave", 0x00ec }, + { "image", 0x2111 }, + { "infin", 0x221e }, + { "int", 0x222b }, + { "iota", 0x03b9 }, + { "iquest", 0x00bf }, + { "isin", 0x2208 }, + { "iuml", 0x00ef }, + { "kappa", 0x03ba }, + { "lArr", 0x21d0 }, + { "lambda", 0x03bb }, + { "lang", 0x2329 }, + { "laquo", 0x00ab }, + { "larr", 0x2190 }, + { "lceil", 0x2308 }, + { "ldquo", 0x201c }, + { "le", 0x2264 }, + { "lfloor", 0x230a }, + { "lowast", 0x2217 }, + { "loz", 0x25ca }, + { "lrm", 0x200e }, + { "lsaquo", 0x2039 }, + { "lsquo", 0x2018 }, + { "lt", 60 }, + { "macr", 0x00af }, + { "mdash", 0x2014 }, + { "micro", 0x00b5 }, + { "middot", 0x00b7 }, + { "minus", 0x2212 }, + { "mu", 0x03bc }, + { "nabla", 0x2207 }, + { "nbsp", 0x00a0 }, + { "ndash", 0x2013 }, + { "ne", 0x2260 }, + { "ni", 0x220b }, + { "not", 0x00ac }, + { "notin", 0x2209 }, + { "nsub", 0x2284 }, + { "ntilde", 0x00f1 }, + { "nu", 0x03bd }, + { "oacute", 0x00f3 }, + { "ocirc", 0x00f4 }, + { "oelig", 0x0153 }, + { "ograve", 0x00f2 }, + { "oline", 0x203e }, + { "omega", 0x03c9 }, + { "omicron", 0x03bf }, + { "oplus", 0x2295 }, + { "or", 0x22a6 }, + { "ordf", 0x00aa }, + { "ordm", 0x00ba }, + { "oslash", 0x00f8 }, + { "otilde", 0x00f5 }, + { "otimes", 0x2297 }, + { "ouml", 0x00f6 }, + { "para", 0x00b6 }, + { "part", 0x2202 }, + { "percnt", 0x0025 }, + { "permil", 0x2030 }, + { "perp", 0x22a5 }, + { "phi", 0x03c6 }, + { "pi", 0x03c0 }, + { "piv", 0x03d6 }, + { "plusmn", 0x00b1 }, + { "pound", 0x00a3 }, + { "prime", 0x2032 }, + { "prod", 0x220f }, + { "prop", 0x221d }, + { "psi", 0x03c8 }, + { "quot", 34 }, + { "rArr", 0x21d2 }, + { "radic", 0x221a }, + { "rang", 0x232a }, + { "raquo", 0x00bb }, + { "rarr", 0x2192 }, + { "rceil", 0x2309 }, + { "rdquo", 0x201d }, + { "real", 0x211c }, + { "reg", 0x00ae }, + { "rfloor", 0x230b }, + { "rho", 0x03c1 }, + { "rlm", 0x200f }, + { "rsaquo", 0x203a }, + { "rsquo", 0x2019 }, + { "sbquo", 0x201a }, + { "scaron", 0x0161 }, + { "sdot", 0x22c5 }, + { "sect", 0x00a7 }, + { "shy", 0x00ad }, + { "sigma", 0x03c3 }, + { "sigmaf", 0x03c2 }, + { "sim", 0x223c }, + { "spades", 0x2660 }, + { "sub", 0x2282 }, + { "sube", 0x2286 }, + { "sum", 0x2211 }, + { "sup", 0x2283 }, + { "sup1", 0x00b9 }, + { "sup2", 0x00b2 }, + { "sup3", 0x00b3 }, + { "supe", 0x2287 }, + { "szlig", 0x00df }, + { "tau", 0x03c4 }, + { "there4", 0x2234 }, + { "theta", 0x03b8 }, + { "thetasym", 0x03d1 }, + { "thinsp", 0x2009 }, + { "thorn", 0x00fe }, + { "tilde", 0x02dc }, + { "times", 0x00d7 }, + { "trade", 0x2122 }, + { "uArr", 0x21d1 }, + { "uacute", 0x00fa }, + { "uarr", 0x2191 }, + { "ucirc", 0x00fb }, + { "ugrave", 0x00f9 }, + { "uml", 0x00a8 }, + { "upsih", 0x03d2 }, + { "upsilon", 0x03c5 }, + { "uuml", 0x00fc }, + { "weierp", 0x2118 }, + { "xi", 0x03be }, + { "yacute", 0x00fd }, + { "yen", 0x00a5 }, + { "yuml", 0x00ff }, + { "zeta", 0x03b6 }, + { "zwj", 0x200d }, + { "zwnj", 0x200c } +}; + +Q_STATIC_GLOBAL_OPERATOR bool operator<(const QString &entityStr, const QTextHtmlEntity &entity) +{ + return entityStr < QLatin1String(entity.name); +} + +Q_STATIC_GLOBAL_OPERATOR bool operator<(const QTextHtmlEntity &entity, const QString &entityStr) +{ + return QLatin1String(entity.name) < entityStr; +} + +static QChar resolveEntity(const QString &entity) +{ + const QTextHtmlEntity *start = &entities[0]; + const QTextHtmlEntity *end = &entities[MAX_ENTITY]; + const QTextHtmlEntity *e = qBinaryFind(start, end, entity); + if (e == end) + return QChar(); + return e->code; +} + +static const ushort windowsLatin1ExtendedCharacters[0xA0 - 0x80] = { + 0x20ac, // 0x80 + 0x0081, // 0x81 direct mapping + 0x201a, // 0x82 + 0x0192, // 0x83 + 0x201e, // 0x84 + 0x2026, // 0x85 + 0x2020, // 0x86 + 0x2021, // 0x87 + 0x02C6, // 0x88 + 0x2030, // 0x89 + 0x0160, // 0x8A + 0x2039, // 0x8B + 0x0152, // 0x8C + 0x008D, // 0x8D direct mapping + 0x017D, // 0x8E + 0x008F, // 0x8F directmapping + 0x0090, // 0x90 directmapping + 0x2018, // 0x91 + 0x2019, // 0x92 + 0x201C, // 0x93 + 0X201D, // 0x94 + 0x2022, // 0x95 + 0x2013, // 0x96 + 0x2014, // 0x97 + 0x02DC, // 0x98 + 0x2122, // 0x99 + 0x0161, // 0x9A + 0x203A, // 0x9B + 0x0153, // 0x9C + 0x009D, // 0x9D direct mapping + 0x017E, // 0x9E + 0x0178 // 0x9F +}; + +// the displayMode value is according to the what are blocks in the piecetable, not +// what the w3c defines. +static const QTextHtmlElement elements[Html_NumElements]= { + { "a", Html_a, QTextHtmlElement::DisplayInline }, + { "address", Html_address, QTextHtmlElement::DisplayInline }, + { "b", Html_b, QTextHtmlElement::DisplayInline }, + { "big", Html_big, QTextHtmlElement::DisplayInline }, + { "blockquote", Html_blockquote, QTextHtmlElement::DisplayBlock }, + { "body", Html_body, QTextHtmlElement::DisplayBlock }, + { "br", Html_br, QTextHtmlElement::DisplayInline }, + { "caption", Html_caption, QTextHtmlElement::DisplayBlock }, + { "center", Html_center, QTextHtmlElement::DisplayBlock }, + { "cite", Html_cite, QTextHtmlElement::DisplayInline }, + { "code", Html_code, QTextHtmlElement::DisplayInline }, + { "dd", Html_dd, QTextHtmlElement::DisplayBlock }, + { "dfn", Html_dfn, QTextHtmlElement::DisplayInline }, + { "div", Html_div, QTextHtmlElement::DisplayBlock }, + { "dl", Html_dl, QTextHtmlElement::DisplayBlock }, + { "dt", Html_dt, QTextHtmlElement::DisplayBlock }, + { "em", Html_em, QTextHtmlElement::DisplayInline }, + { "font", Html_font, QTextHtmlElement::DisplayInline }, + { "h1", Html_h1, QTextHtmlElement::DisplayBlock }, + { "h2", Html_h2, QTextHtmlElement::DisplayBlock }, + { "h3", Html_h3, QTextHtmlElement::DisplayBlock }, + { "h4", Html_h4, QTextHtmlElement::DisplayBlock }, + { "h5", Html_h5, QTextHtmlElement::DisplayBlock }, + { "h6", Html_h6, QTextHtmlElement::DisplayBlock }, + { "head", Html_head, QTextHtmlElement::DisplayNone }, + { "hr", Html_hr, QTextHtmlElement::DisplayBlock }, + { "html", Html_html, QTextHtmlElement::DisplayInline }, + { "i", Html_i, QTextHtmlElement::DisplayInline }, + { "img", Html_img, QTextHtmlElement::DisplayInline }, + { "kbd", Html_kbd, QTextHtmlElement::DisplayInline }, + { "li", Html_li, QTextHtmlElement::DisplayBlock }, + { "link", Html_link, QTextHtmlElement::DisplayNone }, + { "meta", Html_meta, QTextHtmlElement::DisplayNone }, + { "nobr", Html_nobr, QTextHtmlElement::DisplayInline }, + { "ol", Html_ol, QTextHtmlElement::DisplayBlock }, + { "p", Html_p, QTextHtmlElement::DisplayBlock }, + { "pre", Html_pre, QTextHtmlElement::DisplayBlock }, + { "qt", Html_body /*deliberate mapping*/, QTextHtmlElement::DisplayBlock }, + { "s", Html_s, QTextHtmlElement::DisplayInline }, + { "samp", Html_samp, QTextHtmlElement::DisplayInline }, + { "script", Html_script, QTextHtmlElement::DisplayNone }, + { "small", Html_small, QTextHtmlElement::DisplayInline }, + { "span", Html_span, QTextHtmlElement::DisplayInline }, + { "strong", Html_strong, QTextHtmlElement::DisplayInline }, + { "style", Html_style, QTextHtmlElement::DisplayNone }, + { "sub", Html_sub, QTextHtmlElement::DisplayInline }, + { "sup", Html_sup, QTextHtmlElement::DisplayInline }, + { "table", Html_table, QTextHtmlElement::DisplayTable }, + { "tbody", Html_tbody, QTextHtmlElement::DisplayTable }, + { "td", Html_td, QTextHtmlElement::DisplayBlock }, + { "tfoot", Html_tfoot, QTextHtmlElement::DisplayTable }, + { "th", Html_th, QTextHtmlElement::DisplayBlock }, + { "thead", Html_thead, QTextHtmlElement::DisplayTable }, + { "title", Html_title, QTextHtmlElement::DisplayNone }, + { "tr", Html_tr, QTextHtmlElement::DisplayTable }, + { "tt", Html_tt, QTextHtmlElement::DisplayInline }, + { "u", Html_u, QTextHtmlElement::DisplayInline }, + { "ul", Html_ul, QTextHtmlElement::DisplayBlock }, + { "var", Html_var, QTextHtmlElement::DisplayInline }, +}; + + +Q_STATIC_GLOBAL_OPERATOR bool operator<(const QString &str, const QTextHtmlElement &e) +{ + return str < QLatin1String(e.name); +} + +Q_STATIC_GLOBAL_OPERATOR bool operator<(const QTextHtmlElement &e, const QString &str) +{ + return QLatin1String(e.name) < str; +} + +static const QTextHtmlElement *lookupElementHelper(const QString &element) +{ + const QTextHtmlElement *start = &elements[0]; + const QTextHtmlElement *end = &elements[Html_NumElements]; + const QTextHtmlElement *e = qBinaryFind(start, end, element); + if (e == end) + return 0; + return e; +} + +int QTextHtmlParser::lookupElement(const QString &element) +{ + const QTextHtmlElement *e = lookupElementHelper(element); + if (!e) + return -1; + return e->id; +} + +// quotes newlines as "\\n" +static QString quoteNewline(const QString &s) +{ + QString n = s; + n.replace(QLatin1Char('\n'), QLatin1String("\\n")); + return n; +} + +QTextHtmlParserNode::QTextHtmlParserNode() + : parent(0), id(Html_unknown), + cssFloat(QTextFrameFormat::InFlow), hasOwnListStyle(false), + hasCssListIndent(false), isEmptyParagraph(false), isTextFrame(false), isRootFrame(false), + displayMode(QTextHtmlElement::DisplayInline), hasHref(false), + listStyle(QTextListFormat::ListStyleUndefined), imageWidth(-1), imageHeight(-1), tableBorder(0), + tableCellRowSpan(1), tableCellColSpan(1), tableCellSpacing(2), tableCellPadding(0), + borderBrush(Qt::darkGray), borderStyle(QTextFrameFormat::BorderStyle_Outset), + userState(-1), cssListIndent(0), wsm(WhiteSpaceModeUndefined) +{ + margin[QTextHtmlParser::MarginLeft] = 0; + margin[QTextHtmlParser::MarginRight] = 0; + margin[QTextHtmlParser::MarginTop] = 0; + margin[QTextHtmlParser::MarginBottom] = 0; +} + +void QTextHtmlParser::dumpHtml() +{ + for (int i = 0; i < count(); ++i) { + qDebug().nospace() << qPrintable(QString(depth(i)*4, QLatin1Char(' '))) + << qPrintable(at(i).tag) << ':' + << quoteNewline(at(i).text); + ; + } +} + +QTextHtmlParserNode *QTextHtmlParser::newNode(int parent) +{ + QTextHtmlParserNode *lastNode = &nodes.last(); + QTextHtmlParserNode *newNode = 0; + + bool reuseLastNode = true; + + if (nodes.count() == 1) { + reuseLastNode = false; + } else if (lastNode->tag.isEmpty()) { + + if (lastNode->text.isEmpty()) { + reuseLastNode = true; + } else { // last node is a text node (empty tag) with some text + + if (lastNode->text.length() == 1 && lastNode->text.at(0).isSpace()) { + + int lastSibling = count() - 2; + while (lastSibling + && at(lastSibling).parent != lastNode->parent + && at(lastSibling).displayMode == QTextHtmlElement::DisplayInline) { + lastSibling = at(lastSibling).parent; + } + + if (at(lastSibling).displayMode == QTextHtmlElement::DisplayInline) { + reuseLastNode = false; + } else { + reuseLastNode = true; + } + } else { + // text node with real (non-whitespace) text -> nothing to re-use + reuseLastNode = false; + } + + } + + } else { + // last node had a proper tag -> nothing to re-use + reuseLastNode = false; + } + + if (reuseLastNode) { + newNode = lastNode; + newNode->tag.clear(); + newNode->text.clear(); + newNode->id = Html_unknown; + } else { + nodes.resize(nodes.size() + 1); + newNode = &nodes.last(); + } + + newNode->parent = parent; + return newNode; +} + +void QTextHtmlParser::parse(const QString &text, const QTextDocument *_resourceProvider) +{ + nodes.clear(); + nodes.resize(1); + txt = text; + pos = 0; + len = txt.length(); + textEditMode = false; + resourceProvider = _resourceProvider; + parse(); + //dumpHtml(); +} + +int QTextHtmlParser::depth(int i) const +{ + int depth = 0; + while (i) { + i = at(i).parent; + ++depth; + } + return depth; +} + +int QTextHtmlParser::margin(int i, int mar) const { + int m = 0; + const QTextHtmlParserNode *node; + if (mar == MarginLeft + || mar == MarginRight) { + while (i) { + node = &at(i); + if (!node->isBlock() && node->id != Html_table) + break; + if (node->isTableCell()) + break; + m += node->margin[mar]; + i = node->parent; + } + } + return m; +} + +int QTextHtmlParser::topMargin(int i) const +{ + if (!i) + return 0; + return at(i).margin[MarginTop]; +} + +int QTextHtmlParser::bottomMargin(int i) const +{ + if (!i) + return 0; + return at(i).margin[MarginBottom]; +} + +void QTextHtmlParser::eatSpace() +{ + while (pos < len && txt.at(pos).isSpace() && txt.at(pos) != QChar::ParagraphSeparator) + pos++; +} + +void QTextHtmlParser::parse() +{ + while (pos < len) { + QChar c = txt.at(pos++); + if (c == QLatin1Char('<')) { + parseTag(); + } else if (c == QLatin1Char('&')) { + nodes.last().text += parseEntity(); + } else { + nodes.last().text += c; + } + } +} + +// parses a tag after "<" +void QTextHtmlParser::parseTag() +{ + eatSpace(); + + // handle comments and other exclamation mark declarations + if (hasPrefix(QLatin1Char('!'))) { + parseExclamationTag(); + if (nodes.last().wsm != QTextHtmlParserNode::WhiteSpacePre + && nodes.last().wsm != QTextHtmlParserNode::WhiteSpacePreWrap + && !textEditMode) + eatSpace(); + return; + } + + // if close tag just close + if (hasPrefix(QLatin1Char('/'))) { + if (nodes.last().id == Html_style) { +#ifndef QT_NO_CSSPARSER + QCss::Parser parser(nodes.last().text); + QCss::StyleSheet sheet; + sheet.origin = QCss::StyleSheetOrigin_Author; + parser.parse(&sheet, Qt::CaseInsensitive); + inlineStyleSheets.append(sheet); + resolveStyleSheetImports(sheet); +#endif + } + parseCloseTag(); + return; + } + + int p = last(); + while (p && at(p).tag.size() == 0) + p = at(p).parent; + + QTextHtmlParserNode *node = newNode(p); + + // parse tag name + node->tag = parseWord().toLower(); + + const QTextHtmlElement *elem = lookupElementHelper(node->tag); + if (elem) { + node->id = elem->id; + node->displayMode = elem->displayMode; + } else { + node->id = Html_unknown; + } + + node->attributes.clear(); + // _need_ at least one space after the tag name, otherwise there can't be attributes + if (pos < len && txt.at(pos).isSpace()) + node->attributes = parseAttributes(); + + // resolveParent() may have to change the order in the tree and + // insert intermediate nodes for buggy HTML, so re-initialize the 'node' + // pointer through the return value + node = resolveParent(); + resolveNode(); + + const int nodeIndex = nodes.count() - 1; // this new node is always the last +#ifndef QT_NO_CSSPARSER + node->applyCssDeclarations(declarationsForNode(nodeIndex), resourceProvider); +#endif + applyAttributes(node->attributes); + + // finish tag + bool tagClosed = false; + while (pos < len && txt.at(pos) != QLatin1Char('>')) { + if (txt.at(pos) == QLatin1Char('/')) + tagClosed = true; + + pos++; + } + pos++; + + // in a white-space preserving environment strip off a initial newline + // since the element itself already generates a newline + if ((node->wsm == QTextHtmlParserNode::WhiteSpacePre + || node->wsm == QTextHtmlParserNode::WhiteSpacePreWrap) + && node->isBlock()) { + if (pos < len - 1 && txt.at(pos) == QLatin1Char('\n')) + ++pos; + } + + if (node->mayNotHaveChildren() || tagClosed) { + newNode(node->parent); + resolveNode(); + } +} + +// parses a tag beginning with "/" +void QTextHtmlParser::parseCloseTag() +{ + ++pos; + QString tag = parseWord().toLower().trimmed(); + while (pos < len) { + QChar c = txt.at(pos++); + if (c == QLatin1Char('>')) + break; + } + + // find corresponding open node + int p = last(); + if (p > 0 + && at(p - 1).tag == tag + && at(p - 1).mayNotHaveChildren()) + p--; + + while (p && at(p).tag != tag) + p = at(p).parent; + + // simply ignore the tag if we can't find + // a corresponding open node, for broken + // html such as blah + if (!p) + return; + + // in a white-space preserving environment strip off a trailing newline + // since the closing of the opening block element will automatically result + // in a new block for elements following the 
+    // ...foo\n

blah -> foo

blah + if ((at(p).wsm == QTextHtmlParserNode::WhiteSpacePre + || at(p).wsm == QTextHtmlParserNode::WhiteSpacePreWrap) + && at(p).isBlock()) { + if (at(last()).text.endsWith(QLatin1Char('\n'))) + nodes[last()].text.chop(1); + } + + newNode(at(p).parent); + resolveNode(); +} + +// parses a tag beginning with "!" +void QTextHtmlParser::parseExclamationTag() +{ + ++pos; + if (hasPrefix(QLatin1Char('-'),1) && hasPrefix(QLatin1Char('-'),2)) { + pos += 3; + // eat comments + int end = txt.indexOf(QLatin1String("-->"), pos); + pos = (end >= 0 ? end + 3 : len); + } else { + // eat internal tags + while (pos < len) { + QChar c = txt.at(pos++); + if (c == QLatin1Char('>')) + break; + } + } +} + +// parses an entity after "&", and returns it +QString QTextHtmlParser::parseEntity() +{ + int recover = pos; + QString entity; + while (pos < len) { + QChar c = txt.at(pos++); + if (c.isSpace() || pos - recover > 9) { + goto error; + } + if (c == QLatin1Char(';')) + break; + entity += c; + } + { + QChar resolved = resolveEntity(entity); + if (!resolved.isNull()) + return QString(resolved); + } + if (entity.length() > 1 && entity.at(0) == QLatin1Char('#')) { + entity.remove(0, 1); // removing leading # + + int base = 10; + bool ok = false; + + if (entity.at(0).toLower() == QLatin1Char('x')) { // hex entity? + entity.remove(0, 1); + base = 16; + } + + uint uc = entity.toUInt(&ok, base); + if (ok) { + if (uc >= 0x80 && uc < 0x80 + (sizeof(windowsLatin1ExtendedCharacters)/sizeof(windowsLatin1ExtendedCharacters[0]))) + uc = windowsLatin1ExtendedCharacters[uc - 0x80]; + QString str; + if (uc > 0xffff) { + // surrogate pair + uc -= 0x10000; + ushort high = uc/0x400 + 0xd800; + ushort low = uc%0x400 + 0xdc00; + str.append(QChar(high)); + str.append(QChar(low)); + } else { + str.append(QChar(uc)); + } + return str; + } + } +error: + pos = recover; + return QLatin1String("&"); +} + +// parses one word, possibly quoted, and returns it +QString QTextHtmlParser::parseWord() +{ + QString word; + if (hasPrefix(QLatin1Char('\"'))) { // double quotes + ++pos; + while (pos < len) { + QChar c = txt.at(pos++); + if (c == QLatin1Char('\"')) + break; + else if (c == QLatin1Char('&')) + word += parseEntity(); + else + word += c; + } + } else if (hasPrefix(QLatin1Char('\''))) { // single quotes + ++pos; + while (pos < len) { + QChar c = txt.at(pos++); + if (c == QLatin1Char('\'')) + break; + else + word += c; + } + } else { // normal text + while (pos < len) { + QChar c = txt.at(pos++); + if (c == QLatin1Char('>') + || (c == QLatin1Char('/') && hasPrefix(QLatin1Char('>'), 1)) + || c == QLatin1Char('<') + || c == QLatin1Char('=') + || c.isSpace()) { + --pos; + break; + } + if (c == QLatin1Char('&')) + word += parseEntity(); + else + word += c; + } + } + return word; +} + +// gives the new node the right parent +QTextHtmlParserNode *QTextHtmlParser::resolveParent() +{ + QTextHtmlParserNode *node = &nodes.last(); + + int p = node->parent; + + // Excel gives us buggy HTML with just tr without surrounding table tags + // or with just td tags + + if (node->id == Html_td) { + int n = p; + while (n && at(n).id != Html_tr) + n = at(n).parent; + + if (!n) { + nodes.insert(nodes.count() - 1, QTextHtmlParserNode()); + nodes.insert(nodes.count() - 1, QTextHtmlParserNode()); + + QTextHtmlParserNode *table = &nodes[nodes.count() - 3]; + table->parent = p; + table->id = Html_table; + table->tag = QLatin1String("table"); + table->children.append(nodes.count() - 2); // add row as child + + QTextHtmlParserNode *row = &nodes[nodes.count() - 2]; + row->parent = nodes.count() - 3; // table as parent + row->id = Html_tr; + row->tag = QLatin1String("tr"); + + p = nodes.count() - 2; + node = &nodes.last(); // re-initialize pointer + } + } + + if (node->id == Html_tr) { + int n = p; + while (n && at(n).id != Html_table) + n = at(n).parent; + + if (!n) { + nodes.insert(nodes.count() - 1, QTextHtmlParserNode()); + QTextHtmlParserNode *table = &nodes[nodes.count() - 2]; + table->parent = p; + table->id = Html_table; + table->tag = QLatin1String("table"); + p = nodes.count() - 2; + node = &nodes.last(); // re-initialize pointer + } + } + + // permit invalid html by letting block elements be children + // of inline elements with the exception of paragraphs: + // + // a new paragraph closes parent inline elements (while loop), + // unless they themselves are children of a non-paragraph block + // element (if statement) + // + // For example: + // + //

Foo

Bar <-- second

implicitly closes that + // belongs to the first

. The self-nesting + // check further down prevents the second

+ // from nesting into the first one then. + // so Bar is not bold. + // + //

Foo <-- Foo should be bold. + // + //

Foo

Bar <-- Foo and Bar should be bold. + // + if (node->id == Html_p) { + while (p && !at(p).isBlock()) + p = at(p).parent; + + if (!p || at(p).id != Html_p) + p = node->parent; + } + + // some elements are not self nesting + if (node->id == at(p).id + && node->isNotSelfNesting()) + p = at(p).parent; + + // some elements are not allowed in certain contexts + while ((p && !node->allowedInContext(at(p).id)) + // ### make new styles aware of empty tags + || at(p).mayNotHaveChildren() + ) { + p = at(p).parent; + } + + node->parent = p; + + // makes it easier to traverse the tree, later + nodes[p].children.append(nodes.count() - 1); + return node; +} + +// sets all properties on the new node +void QTextHtmlParser::resolveNode() +{ + QTextHtmlParserNode *node = &nodes.last(); + const QTextHtmlParserNode *parent = &nodes.at(node->parent); + node->initializeProperties(parent, this); +} + +bool QTextHtmlParserNode::isNestedList(const QTextHtmlParser *parser) const +{ + if (!isListStart()) + return false; + + int p = parent; + while (p) { + if (parser->at(p).isListStart()) + return true; + p = parser->at(p).parent; + } + return false; +} + +void QTextHtmlParserNode::initializeProperties(const QTextHtmlParserNode *parent, const QTextHtmlParser *parser) +{ + // inherit properties from parent element + charFormat = parent->charFormat; + + if (id == Html_html) + blockFormat.setLayoutDirection(Qt::LeftToRight); // HTML default + else if (parent->blockFormat.hasProperty(QTextFormat::LayoutDirection)) + blockFormat.setLayoutDirection(parent->blockFormat.layoutDirection()); + + if (parent->displayMode == QTextHtmlElement::DisplayNone) + displayMode = QTextHtmlElement::DisplayNone; + + if (parent->id != Html_table || id == Html_caption) { + if (parent->blockFormat.hasProperty(QTextFormat::BlockAlignment)) + blockFormat.setAlignment(parent->blockFormat.alignment()); + else + blockFormat.clearProperty(QTextFormat::BlockAlignment); + } + // we don't paint per-row background colors, yet. so as an + // exception inherit the background color here + // we also inherit the background between inline elements + if ((parent->id != Html_tr || !isTableCell()) + && (displayMode != QTextHtmlElement::DisplayInline || parent->displayMode != QTextHtmlElement::DisplayInline)) { + charFormat.clearProperty(QTextFormat::BackgroundBrush); + } + + listStyle = parent->listStyle; + // makes no sense to inherit that property, a named anchor is a single point + // in the document, which is set by the DocumentFragment + charFormat.clearProperty(QTextFormat::AnchorName); + wsm = parent->wsm; + + // initialize remaining properties + margin[QTextHtmlParser::MarginLeft] = 0; + margin[QTextHtmlParser::MarginRight] = 0; + margin[QTextHtmlParser::MarginTop] = 0; + margin[QTextHtmlParser::MarginBottom] = 0; + cssFloat = QTextFrameFormat::InFlow; + + for (int i = 0; i < 4; ++i) + padding[i] = -1; + + // set element specific attributes + switch (id) { + case Html_a: + charFormat.setAnchor(true); + for (int i = 0; i < attributes.count(); i += 2) { + const QString key = attributes.at(i); + if (key.compare(QLatin1String("href"), Qt::CaseInsensitive) == 0 + && !attributes.at(i + 1).isEmpty()) { + hasHref = true; + charFormat.setUnderlineStyle(QTextCharFormat::SingleUnderline); + charFormat.setForeground(QApplication::palette().link()); + } + } + + break; + case Html_em: + case Html_i: + case Html_cite: + case Html_address: + case Html_var: + case Html_dfn: + charFormat.setFontItalic(true); + break; + case Html_big: + charFormat.setProperty(QTextFormat::FontSizeAdjustment, int(1)); + break; + case Html_small: + charFormat.setProperty(QTextFormat::FontSizeAdjustment, int(-1)); + break; + case Html_strong: + case Html_b: + charFormat.setFontWeight(QFont::Bold); + break; + case Html_h1: + charFormat.setFontWeight(QFont::Bold); + charFormat.setProperty(QTextFormat::FontSizeAdjustment, int(3)); + margin[QTextHtmlParser::MarginTop] = 18; + margin[QTextHtmlParser::MarginBottom] = 12; + break; + case Html_h2: + charFormat.setFontWeight(QFont::Bold); + charFormat.setProperty(QTextFormat::FontSizeAdjustment, int(2)); + margin[QTextHtmlParser::MarginTop] = 16; + margin[QTextHtmlParser::MarginBottom] = 12; + break; + case Html_h3: + charFormat.setFontWeight(QFont::Bold); + charFormat.setProperty(QTextFormat::FontSizeAdjustment, int(1)); + margin[QTextHtmlParser::MarginTop] = 14; + margin[QTextHtmlParser::MarginBottom] = 12; + break; + case Html_h4: + charFormat.setFontWeight(QFont::Bold); + charFormat.setProperty(QTextFormat::FontSizeAdjustment, int(0)); + margin[QTextHtmlParser::MarginTop] = 12; + margin[QTextHtmlParser::MarginBottom] = 12; + break; + case Html_h5: + charFormat.setFontWeight(QFont::Bold); + charFormat.setProperty(QTextFormat::FontSizeAdjustment, int(-1)); + margin[QTextHtmlParser::MarginTop] = 12; + margin[QTextHtmlParser::MarginBottom] = 4; + break; + case Html_p: + margin[QTextHtmlParser::MarginTop] = 12; + margin[QTextHtmlParser::MarginBottom] = 12; + break; + case Html_center: + blockFormat.setAlignment(Qt::AlignCenter); + break; + case Html_ul: + listStyle = QTextListFormat::ListDisc; + // nested lists don't have margins, except for the toplevel one + if (!isNestedList(parser)) { + margin[QTextHtmlParser::MarginTop] = 12; + margin[QTextHtmlParser::MarginBottom] = 12; + } + // no left margin as we use indenting instead + break; + case Html_ol: + listStyle = QTextListFormat::ListDecimal; + // nested lists don't have margins, except for the toplevel one + if (!isNestedList(parser)) { + margin[QTextHtmlParser::MarginTop] = 12; + margin[QTextHtmlParser::MarginBottom] = 12; + } + // no left margin as we use indenting instead + break; + case Html_code: + case Html_tt: + case Html_kbd: + case Html_samp: + charFormat.setFontFamily(QString::fromLatin1("Courier New,courier")); + // uses a fixed font, so set the property + charFormat.setFontFixedPitch(true); + break; + case Html_br: + text = QChar(QChar::LineSeparator); + wsm = QTextHtmlParserNode::WhiteSpacePre; + break; + // ##### sub / sup + case Html_pre: + charFormat.setFontFamily(QString::fromLatin1("Courier New,courier")); + wsm = WhiteSpacePre; + margin[QTextHtmlParser::MarginTop] = 12; + margin[QTextHtmlParser::MarginBottom] = 12; + // 

 uses a fixed font
+            charFormat.setFontFixedPitch(true);
+            break;
+        case Html_blockquote:
+            margin[QTextHtmlParser::MarginTop] = 12;
+            margin[QTextHtmlParser::MarginBottom] = 12;
+            margin[QTextHtmlParser::MarginLeft] = 40;
+            margin[QTextHtmlParser::MarginRight] = 40;
+            break;
+        case Html_dl:
+            margin[QTextHtmlParser::MarginTop] = 8;
+            margin[QTextHtmlParser::MarginBottom] = 8;
+            break;
+        case Html_dd:
+            margin[QTextHtmlParser::MarginLeft] = 30;
+            break;
+        case Html_u:
+            charFormat.setUnderlineStyle(QTextCharFormat::SingleUnderline);
+            break;
+        case Html_s:
+            charFormat.setFontStrikeOut(true);
+            break;
+        case Html_nobr:
+            wsm = WhiteSpaceNoWrap;
+            break;
+        case Html_th:
+            charFormat.setFontWeight(QFont::Bold);
+            blockFormat.setAlignment(Qt::AlignCenter);
+            break;
+        case Html_td:
+            blockFormat.setAlignment(Qt::AlignLeft);
+            break;
+        case Html_sub:
+            charFormat.setVerticalAlignment(QTextCharFormat::AlignSubScript);
+            break;
+        case Html_sup:
+            charFormat.setVerticalAlignment(QTextCharFormat::AlignSuperScript);
+            break;
+        default: break;
+    }
+}
+
+#ifndef QT_NO_CSSPARSER
+void QTextHtmlParserNode::setListStyle(const QVector &cssValues)
+{
+    for (int i = 0; i < cssValues.count(); ++i) {
+        if (cssValues.at(i).type == QCss::Value::KnownIdentifier) {
+            switch (static_cast(cssValues.at(i).variant.toInt())) {
+                case QCss::Value_Disc: hasOwnListStyle = true; listStyle = QTextListFormat::ListDisc; break;
+                case QCss::Value_Square: hasOwnListStyle = true; listStyle = QTextListFormat::ListSquare; break;
+                case QCss::Value_Circle: hasOwnListStyle = true; listStyle = QTextListFormat::ListCircle; break;
+                case QCss::Value_Decimal: hasOwnListStyle = true; listStyle = QTextListFormat::ListDecimal; break;
+                case QCss::Value_LowerAlpha: hasOwnListStyle = true; listStyle = QTextListFormat::ListLowerAlpha; break;
+                case QCss::Value_UpperAlpha: hasOwnListStyle = true; listStyle = QTextListFormat::ListUpperAlpha; break;
+                case QCss::Value_LowerRoman: hasOwnListStyle = true; listStyle = QTextListFormat::ListLowerRoman; break;
+                case QCss::Value_UpperRoman: hasOwnListStyle = true; listStyle = QTextListFormat::ListUpperRoman; break;
+                default: break;
+            }
+        }
+    }
+    // allow individual list items to override the style
+    if (id == Html_li && hasOwnListStyle)
+        blockFormat.setProperty(QTextFormat::ListStyle, listStyle);
+}
+
+void QTextHtmlParserNode::applyCssDeclarations(const QVector &declarations, const QTextDocument *resourceProvider)
+{
+    QCss::ValueExtractor extractor(declarations);
+    extractor.extractBox(margin, padding);
+
+    for (int i = 0; i < declarations.count(); ++i) {
+        const QCss::Declaration &decl = declarations.at(i);
+        if (decl.d->values.isEmpty()) continue;
+
+        QCss::KnownValue identifier = QCss::UnknownValue;
+        if (decl.d->values.first().type == QCss::Value::KnownIdentifier)
+            identifier = static_cast(decl.d->values.first().variant.toInt());
+
+        switch (decl.d->propertyId) {
+        case QCss::BorderColor: borderBrush = QBrush(decl.colorValue()); break;
+        case QCss::BorderStyles:
+            if (decl.styleValue() != QCss::BorderStyle_Unknown && decl.styleValue() != QCss::BorderStyle_Native)
+                borderStyle = static_cast(decl.styleValue() - 1);
+            break;
+        case QCss::BorderWidth:
+            tableBorder = extractor.lengthValue(decl);
+            break;
+        case QCss::Color: charFormat.setForeground(decl.colorValue()); break;
+        case QCss::Float:
+            cssFloat = QTextFrameFormat::InFlow;
+            switch (identifier) {
+            case QCss::Value_Left: cssFloat = QTextFrameFormat::FloatLeft; break;
+            case QCss::Value_Right: cssFloat = QTextFrameFormat::FloatRight; break;
+            default: break;
+            }
+            break;
+        case QCss::QtBlockIndent:
+            blockFormat.setIndent(decl.d->values.first().variant.toInt());
+            break;
+        case QCss::TextIndent: {
+            qreal indent = 0;
+            if (decl.realValue(&indent, "px"))
+                blockFormat.setTextIndent(indent);
+            break; }
+        case QCss::QtListIndent:
+            if (decl.intValue(&cssListIndent))
+                hasCssListIndent = true;
+            break;
+        case QCss::QtParagraphType:
+            if (decl.d->values.first().variant.toString().compare(QLatin1String("empty"), Qt::CaseInsensitive) == 0)
+                isEmptyParagraph = true;
+            break;
+        case QCss::QtTableType:
+            if (decl.d->values.first().variant.toString().compare(QLatin1String("frame"), Qt::CaseInsensitive) == 0)
+                isTextFrame = true;
+            else if (decl.d->values.first().variant.toString().compare(QLatin1String("root"), Qt::CaseInsensitive) == 0) {
+                isTextFrame = true;
+                isRootFrame = true;
+            }
+            break;
+        case QCss::QtUserState:
+            userState = decl.d->values.first().variant.toInt();
+            break;
+        case QCss::Whitespace:
+            switch (identifier) {
+            case QCss::Value_Normal: wsm = QTextHtmlParserNode::WhiteSpaceNormal; break;
+            case QCss::Value_Pre: wsm = QTextHtmlParserNode::WhiteSpacePre; break;
+            case QCss::Value_NoWrap: wsm = QTextHtmlParserNode::WhiteSpaceNoWrap; break;
+            case QCss::Value_PreWrap: wsm = QTextHtmlParserNode::WhiteSpacePreWrap; break;
+            default: break;
+            }
+            break;
+        case QCss::VerticalAlignment:
+            switch (identifier) {
+            case QCss::Value_Sub: charFormat.setVerticalAlignment(QTextCharFormat::AlignSubScript); break;
+            case QCss::Value_Super: charFormat.setVerticalAlignment(QTextCharFormat::AlignSuperScript); break;
+            case QCss::Value_Middle: charFormat.setVerticalAlignment(QTextCharFormat::AlignMiddle); break;
+            case QCss::Value_Top: charFormat.setVerticalAlignment(QTextCharFormat::AlignTop); break;
+            case QCss::Value_Bottom: charFormat.setVerticalAlignment(QTextCharFormat::AlignBottom); break;
+            default: charFormat.setVerticalAlignment(QTextCharFormat::AlignNormal); break;
+            }
+            break;
+        case QCss::PageBreakBefore:
+            switch (identifier) {
+            case QCss::Value_Always: blockFormat.setPageBreakPolicy(blockFormat.pageBreakPolicy() | QTextFormat::PageBreak_AlwaysBefore); break;
+            case QCss::Value_Auto: blockFormat.setPageBreakPolicy(blockFormat.pageBreakPolicy() & ~QTextFormat::PageBreak_AlwaysBefore); break;
+            default: break;
+            }
+            break;
+        case QCss::PageBreakAfter:
+            switch (identifier) {
+            case QCss::Value_Always: blockFormat.setPageBreakPolicy(blockFormat.pageBreakPolicy() | QTextFormat::PageBreak_AlwaysAfter); break;
+            case QCss::Value_Auto: blockFormat.setPageBreakPolicy(blockFormat.pageBreakPolicy() & ~QTextFormat::PageBreak_AlwaysAfter); break;
+            default: break;
+            }
+            break;
+        case QCss::TextUnderlineStyle:
+            switch (identifier) {
+            case QCss::Value_None: charFormat.setUnderlineStyle(QTextCharFormat::NoUnderline); break;
+            case QCss::Value_Solid: charFormat.setUnderlineStyle(QTextCharFormat::SingleUnderline); break;
+            case QCss::Value_Dashed: charFormat.setUnderlineStyle(QTextCharFormat::DashUnderline); break;
+            case QCss::Value_Dotted: charFormat.setUnderlineStyle(QTextCharFormat::DotLine); break;
+            case QCss::Value_DotDash: charFormat.setUnderlineStyle(QTextCharFormat::DashDotLine); break;
+            case QCss::Value_DotDotDash: charFormat.setUnderlineStyle(QTextCharFormat::DashDotDotLine); break;
+            case QCss::Value_Wave: charFormat.setUnderlineStyle(QTextCharFormat::WaveUnderline); break;
+            default: break;
+            }
+            break;
+        case QCss::ListStyleType:
+        case QCss::ListStyle:
+            setListStyle(decl.d->values);
+            break;
+        default: break;
+        }
+    }
+
+    QFont f;
+    int adjustment = -255;
+    extractor.extractFont(&f, &adjustment);
+    if (f.resolve() & QFont::SizeResolved) {
+        if (f.pointSize() > 0) {
+            charFormat.setFontPointSize(f.pointSize());
+        } else if (f.pixelSize() > 0) {
+            charFormat.setProperty(QTextFormat::FontPixelSize, f.pixelSize());
+        }
+    }
+    if (f.resolve() & QFont::StyleResolved)
+        charFormat.setFontItalic(f.style() != QFont::StyleNormal);
+
+    if (f.resolve() & QFont::WeightResolved)
+        charFormat.setFontWeight(f.weight());
+
+    if (f.resolve() & QFont::FamilyResolved)
+        charFormat.setFontFamily(f.family());
+
+    if (f.resolve() & QFont::UnderlineResolved)
+        charFormat.setUnderlineStyle(f.underline() ? QTextCharFormat::SingleUnderline : QTextCharFormat::NoUnderline);
+
+    if (f.resolve() & QFont::OverlineResolved)
+        charFormat.setFontOverline(f.overline());
+
+    if (f.resolve() & QFont::StrikeOutResolved)
+        charFormat.setFontStrikeOut(f.strikeOut());
+
+    if (f.resolve() & QFont::CapitalizationResolved)
+        charFormat.setFontCapitalization(f.capitalization());
+
+    if (adjustment >= -1)
+        charFormat.setProperty(QTextFormat::FontSizeAdjustment, adjustment);
+
+    {
+        Qt::Alignment ignoredAlignment;
+        QCss::Repeat ignoredRepeat;
+        QString bgImage;
+        QBrush bgBrush;
+        QCss::Origin ignoredOrigin, ignoredClip;
+        QCss::Attachment ignoredAttachment;
+        extractor.extractBackground(&bgBrush, &bgImage, &ignoredRepeat, &ignoredAlignment,
+                                    &ignoredOrigin, &ignoredAttachment, &ignoredClip);
+
+        if (!bgImage.isEmpty() && resourceProvider) {
+            applyBackgroundImage(bgImage, resourceProvider);
+        } else if (bgBrush.style() != Qt::NoBrush) {
+            charFormat.setBackground(bgBrush);
+        }
+    }
+}
+
+#endif // QT_NO_CSSPARSER
+
+void QTextHtmlParserNode::applyBackgroundImage(const QString &url, const QTextDocument *resourceProvider)
+{
+    if (!url.isEmpty() && resourceProvider) {
+        QVariant val = resourceProvider->resource(QTextDocument::ImageResource, url);
+
+        if (qApp->thread() != QThread::currentThread()) {
+            // must use images in non-GUI threads
+            if (val.type() == QVariant::Image) {
+                QImage image = qvariant_cast(val);
+                charFormat.setBackground(image);
+            } else if (val.type() == QVariant::ByteArray) {
+                QImage image;
+                if (image.loadFromData(val.toByteArray())) {
+                    charFormat.setBackground(image);
+                }
+            }
+        } else {
+            if (val.type() == QVariant::Image || val.type() == QVariant::Pixmap) {
+                charFormat.setBackground(qvariant_cast(val));
+            } else if (val.type() == QVariant::ByteArray) {
+                QPixmap pm;
+                if (pm.loadFromData(val.toByteArray())) {
+                    charFormat.setBackground(pm);
+                }
+            }
+        }
+    }
+    if (!url.isEmpty())
+        charFormat.setProperty(QTextFormat::BackgroundImageUrl, url);
+}
+
+bool QTextHtmlParserNode::hasOnlyWhitespace() const
+{
+    for (int i = 0; i < text.count(); ++i)
+        if (!text.at(i).isSpace() || text.at(i) == QChar::LineSeparator)
+            return false;
+    return true;
+}
+
+static bool setIntAttribute(int *destination, const QString &value)
+{
+    bool ok = false;
+    int val = value.toInt(&ok);
+    if (ok)
+        *destination = val;
+
+    return ok;
+}
+
+static bool setFloatAttribute(qreal *destination, const QString &value)
+{
+    bool ok = false;
+    qreal val = value.toDouble(&ok);
+    if (ok)
+        *destination = val;
+
+    return ok;
+}
+
+static void setWidthAttribute(QTextLength *width, QString value)
+{
+    bool ok = false;
+    qreal realVal = value.toDouble(&ok);
+    if (ok) {
+        *width = QTextLength(QTextLength::FixedLength, realVal);
+    } else {
+        value = value.trimmed();
+        if (!value.isEmpty() && value.endsWith(QLatin1Char('%'))) {
+            value.chop(1);
+            realVal = value.toDouble(&ok);
+            if (ok)
+                *width = QTextLength(QTextLength::PercentageLength, realVal);
+        }
+    }
+}
+
+#ifndef QT_NO_CSSPARSER
+void QTextHtmlParserNode::parseStyleAttribute(const QString &value, const QTextDocument *resourceProvider)
+{
+    QString css = value;
+    css.prepend(QLatin1String("* {"));
+    css.append(QLatin1Char('}'));
+    QCss::Parser parser(css);
+    QCss::StyleSheet sheet;
+    parser.parse(&sheet, Qt::CaseInsensitive);
+    if (sheet.styleRules.count() != 1) return;
+    applyCssDeclarations(sheet.styleRules.at(0).declarations, resourceProvider);
+}
+#endif
+
+QStringList QTextHtmlParser::parseAttributes()
+{
+    QStringList attrs;
+
+    while (pos < len) {
+        eatSpace();
+        if (hasPrefix(QLatin1Char('>')) || hasPrefix(QLatin1Char('/')))
+            break;
+        QString key = parseWord().toLower();
+        QString value = QLatin1String("1");
+        if (key.size() == 0)
+            break;
+        eatSpace();
+        if (hasPrefix(QLatin1Char('='))){
+            pos++;
+            eatSpace();
+            value = parseWord();
+        }
+        if (value.size() == 0)
+            continue;
+        attrs << key << value;
+    }
+
+    return attrs;
+}
+
+void QTextHtmlParser::applyAttributes(const QStringList &attributes)
+{
+    // local state variable for qt3 textedit mode
+    bool seenQt3Richtext = false;
+    QString linkHref;
+    QString linkType;
+
+    if (attributes.count() % 2 == 1)
+        return;
+
+    QTextHtmlParserNode *node = &nodes.last();
+
+    for (int i = 0; i < attributes.count(); i += 2) {
+        QString key = attributes.at(i);
+        QString value = attributes.at(i + 1);
+
+        switch (node->id) {
+            case Html_font:
+                // the infamous font tag
+                if (key == QLatin1String("size") && value.size()) {
+                    int n = value.toInt();
+                    if (value.at(0) != QLatin1Char('+') && value.at(0) != QLatin1Char('-'))
+                        n -= 3;
+                    node->charFormat.setProperty(QTextFormat::FontSizeAdjustment, n);
+                } else if (key == QLatin1String("face")) {
+                    node->charFormat.setFontFamily(value);
+                } else if (key == QLatin1String("color")) {
+                    QColor c; c.setNamedColor(value);
+                    if (!c.isValid())
+                        qWarning("QTextHtmlParser::applyAttributes: Unknown color name '%s'",value.toLatin1().constData());
+                    node->charFormat.setForeground(c);
+                }
+                break;
+            case Html_ol:
+            case Html_ul:
+                if (key == QLatin1String("type")) {
+                    node->hasOwnListStyle = true;
+                    if (value == QLatin1String("1")) {
+                        node->listStyle = QTextListFormat::ListDecimal;
+                    } else if (value == QLatin1String("a")) {
+                        node->listStyle = QTextListFormat::ListLowerAlpha;
+                    } else if (value == QLatin1String("A")) {
+                        node->listStyle = QTextListFormat::ListUpperAlpha;
+                    } else if (value == QLatin1String("i")) {
+                        node->listStyle = QTextListFormat::ListLowerRoman;
+                    } else if (value == QLatin1String("I")) {
+                        node->listStyle = QTextListFormat::ListUpperRoman;
+                    } else {
+                        value = value.toLower();
+                        if (value == QLatin1String("square"))
+                            node->listStyle = QTextListFormat::ListSquare;
+                        else if (value == QLatin1String("disc"))
+                            node->listStyle = QTextListFormat::ListDisc;
+                        else if (value == QLatin1String("circle"))
+                            node->listStyle = QTextListFormat::ListCircle;
+                    }
+                }
+                break;
+            case Html_a:
+                if (key == QLatin1String("href"))
+                    node->charFormat.setAnchorHref(value);
+                else if (key == QLatin1String("name"))
+                    node->charFormat.setAnchorName(value);
+                break;
+            case Html_img:
+                if (key == QLatin1String("src") || key == QLatin1String("source")) {
+                    node->imageName = value;
+                } else if (key == QLatin1String("width")) {
+                    node->imageWidth = -2; // register that there is a value for it.
+                    setFloatAttribute(&node->imageWidth, value);
+                } else if (key == QLatin1String("height")) {
+                    node->imageHeight = -2; // register that there is a value for it.
+                    setFloatAttribute(&node->imageHeight, value);
+                }
+                break;
+            case Html_tr:
+            case Html_body:
+                if (key == QLatin1String("bgcolor")) {
+                    QColor c; c.setNamedColor(value);
+                    if (!c.isValid())
+                        qWarning("QTextHtmlParser::applyAttributes: Unknown color name '%s'",value.toLatin1().constData());
+                    node->charFormat.setBackground(c);
+                } else if (key == QLatin1String("background")) {
+                    node->applyBackgroundImage(value, resourceProvider);
+                }
+                break;
+            case Html_th:
+            case Html_td:
+                if (key == QLatin1String("width")) {
+                    setWidthAttribute(&node->width, value);
+                } else if (key == QLatin1String("bgcolor")) {
+                    QColor c; c.setNamedColor(value);
+                    if (!c.isValid())
+                        qWarning("QTextHtmlParser::applyAttributes: Unknown color name '%s'",value.toLatin1().constData());
+                    node->charFormat.setBackground(c);
+                } else if (key == QLatin1String("background")) {
+                    node->applyBackgroundImage(value, resourceProvider);
+                } else if (key == QLatin1String("rowspan")) {
+                    if (setIntAttribute(&node->tableCellRowSpan, value))
+                        node->tableCellRowSpan = qMax(1, node->tableCellRowSpan);
+                } else if (key == QLatin1String("colspan")) {
+                    if (setIntAttribute(&node->tableCellColSpan, value))
+                        node->tableCellColSpan = qMax(1, node->tableCellColSpan);
+                }
+                break;
+            case Html_table:
+                if (key == QLatin1String("border")) {
+                    setFloatAttribute(&node->tableBorder, value);
+                } else if (key == QLatin1String("bgcolor")) {
+                    QColor c; c.setNamedColor(value);
+                    if (!c.isValid())
+                        qWarning("QTextHtmlParser::applyAttributes: Unknown color name '%s'",value.toLatin1().constData());
+                    node->charFormat.setBackground(c);
+                } else if (key == QLatin1String("background")) {
+                    node->applyBackgroundImage(value, resourceProvider);
+                } else if (key == QLatin1String("cellspacing")) {
+                    setFloatAttribute(&node->tableCellSpacing, value);
+                } else if (key == QLatin1String("cellpadding")) {
+                    setFloatAttribute(&node->tableCellPadding, value);
+                } else if (key == QLatin1String("width")) {
+                    setWidthAttribute(&node->width, value);
+                } else if (key == QLatin1String("height")) {
+                    setWidthAttribute(&node->height, value);
+                }
+                break;
+            case Html_meta:
+                if (key == QLatin1String("name")
+                    && value == QLatin1String("qrichtext")) {
+                    seenQt3Richtext = true;
+                }
+
+                if (key == QLatin1String("content")
+                    && value == QLatin1String("1")
+                    && seenQt3Richtext) {
+
+                    textEditMode = true;
+                }
+                break;
+            case Html_hr:
+                if (key == QLatin1String("width"))
+                    setWidthAttribute(&node->width, value);
+                break;
+            case Html_link:
+                if (key == QLatin1String("href"))
+                    linkHref = value;
+                else if (key == QLatin1String("type"))
+                    linkType = value;
+                break;
+            default:
+                break;
+        }
+
+        if (key == QLatin1String("style")) {
+#ifndef QT_NO_CSSPARSER
+            node->parseStyleAttribute(value, resourceProvider);
+#endif
+        } else if (key == QLatin1String("align")) {
+            value = value.toLower();
+            bool alignmentSet = true;
+
+            if (value == QLatin1String("left"))
+                node->blockFormat.setAlignment(Qt::AlignLeft|Qt::AlignAbsolute);
+            else if (value == QLatin1String("right"))
+                node->blockFormat.setAlignment(Qt::AlignRight|Qt::AlignAbsolute);
+            else if (value == QLatin1String("center"))
+                node->blockFormat.setAlignment(Qt::AlignHCenter);
+            else if (value == QLatin1String("justify"))
+                node->blockFormat.setAlignment(Qt::AlignJustify);
+            else
+                alignmentSet = false;
+
+            if (node->id == Html_img) {
+                // HTML4 compat
+                if (alignmentSet) {
+                    if (node->blockFormat.alignment() & Qt::AlignLeft)
+                        node->cssFloat = QTextFrameFormat::FloatLeft;
+                    else if (node->blockFormat.alignment() & Qt::AlignRight)
+                        node->cssFloat = QTextFrameFormat::FloatRight;
+                } else if (value == QLatin1String("middle")) {
+                    node->charFormat.setVerticalAlignment(QTextCharFormat::AlignMiddle);
+                } else if (value == QLatin1String("top")) {
+                    node->charFormat.setVerticalAlignment(QTextCharFormat::AlignTop);
+                }
+            }
+        } else if (key == QLatin1String("valign")) {
+            value = value.toLower();
+            if (value == QLatin1String("top"))
+                node->charFormat.setVerticalAlignment(QTextCharFormat::AlignTop);
+            else if (value == QLatin1String("middle"))
+                node->charFormat.setVerticalAlignment(QTextCharFormat::AlignMiddle);
+            else if (value == QLatin1String("bottom"))
+                node->charFormat.setVerticalAlignment(QTextCharFormat::AlignBottom);
+        } else if (key == QLatin1String("dir")) {
+            value = value.toLower();
+            if (value == QLatin1String("ltr"))
+                node->blockFormat.setLayoutDirection(Qt::LeftToRight);
+            else if (value == QLatin1String("rtl"))
+                node->blockFormat.setLayoutDirection(Qt::RightToLeft);
+        } else if (key == QLatin1String("title")) {
+            node->charFormat.setToolTip(value);
+        } else if (key == QLatin1String("id")) {
+            node->charFormat.setAnchor(true);
+            node->charFormat.setAnchorName(value);
+        }
+    }
+
+#ifndef QT_NO_CSSPARSER
+    if (resourceProvider && !linkHref.isEmpty() && linkType == QLatin1String("text/css"))
+        importStyleSheet(linkHref);
+#endif
+}
+
+#ifndef QT_NO_CSSPARSER
+class QTextHtmlStyleSelector : public QCss::StyleSelector
+{
+public:
+    inline QTextHtmlStyleSelector(const QTextHtmlParser *parser)
+        : parser(parser) { nameCaseSensitivity = Qt::CaseInsensitive; }
+
+    virtual QStringList nodeNames(NodePtr node) const;
+    virtual QString attribute(NodePtr node, const QString &name) const;
+    virtual bool hasAttributes(NodePtr node) const;
+    virtual bool isNullNode(NodePtr node) const;
+    virtual NodePtr parentNode(NodePtr node) const;
+    virtual NodePtr previousSiblingNode(NodePtr node) const;
+    virtual NodePtr duplicateNode(NodePtr node) const;
+    virtual void freeNode(NodePtr node) const;
+
+private:
+    const QTextHtmlParser *parser;
+};
+
+QStringList QTextHtmlStyleSelector::nodeNames(NodePtr node) const
+{
+    return QStringList(parser->at(node.id).tag.toLower());
+}
+
+#endif // QT_NO_CSSPARSER
+
+static inline int findAttribute(const QStringList &attributes, const QString &name)
+{
+    int idx = -1;
+    do {
+        idx = attributes.indexOf(name, idx + 1);
+    } while (idx != -1 && (idx % 2 == 1));
+    return idx;
+}
+
+#ifndef QT_NO_CSSPARSER
+
+QString QTextHtmlStyleSelector::attribute(NodePtr node, const QString &name) const
+{
+    const QStringList &attributes = parser->at(node.id).attributes;
+    const int idx = findAttribute(attributes, name);
+    if (idx == -1)
+        return QString();
+    return attributes.at(idx + 1);
+}
+
+bool QTextHtmlStyleSelector::hasAttributes(NodePtr node) const
+{
+   const QStringList &attributes = parser->at(node.id).attributes;
+   return !attributes.isEmpty();
+}
+
+bool QTextHtmlStyleSelector::isNullNode(NodePtr node) const
+{
+    return node.id == 0;
+}
+
+QCss::StyleSelector::NodePtr QTextHtmlStyleSelector::parentNode(NodePtr node) const
+{
+    NodePtr parent;
+    parent.id = 0;
+    if (node.id) {
+        parent.id = parser->at(node.id).parent;
+    }
+    return parent;
+}
+
+QCss::StyleSelector::NodePtr QTextHtmlStyleSelector::duplicateNode(NodePtr node) const
+{
+    return node;
+}
+
+QCss::StyleSelector::NodePtr QTextHtmlStyleSelector::previousSiblingNode(NodePtr node) const
+{
+    NodePtr sibling;
+    sibling.id = 0;
+    if (!node.id)
+        return sibling;
+    int parent = parser->at(node.id).parent;
+    if (!parent)
+        return sibling;
+    const int childIdx = parser->at(parent).children.indexOf(node.id);
+    if (childIdx <= 0)
+        return sibling;
+    sibling.id = parser->at(parent).children.at(childIdx - 1);
+    return sibling;
+}
+
+void QTextHtmlStyleSelector::freeNode(NodePtr) const
+{
+}
+
+void QTextHtmlParser::resolveStyleSheetImports(const QCss::StyleSheet &sheet)
+{
+    for (int i = 0; i < sheet.importRules.count(); ++i) {
+        const QCss::ImportRule &rule = sheet.importRules.at(i);
+        if (rule.media.isEmpty()
+            || rule.media.contains(QLatin1String("screen"), Qt::CaseInsensitive))
+            importStyleSheet(rule.href);
+    }
+}
+
+void QTextHtmlParser::importStyleSheet(const QString &href)
+{
+    if (!resourceProvider)
+        return;
+    for (int i = 0; i < externalStyleSheets.count(); ++i)
+        if (externalStyleSheets.at(i).url == href)
+            return;
+
+    QVariant res = resourceProvider->resource(QTextDocument::StyleSheetResource, href);
+    QString css;
+    if (res.type() == QVariant::String) {
+        css = res.toString();
+    } else if (res.type() == QVariant::ByteArray) {
+        // #### detect @charset
+        css = QString::fromUtf8(res.toByteArray());
+    }
+    if (!css.isEmpty()) {
+        QCss::Parser parser(css);
+        QCss::StyleSheet sheet;
+        parser.parse(&sheet, Qt::CaseInsensitive);
+        externalStyleSheets.append(ExternalStyleSheet(href, sheet));
+        resolveStyleSheetImports(sheet);
+    }
+}
+
+QVector QTextHtmlParser::declarationsForNode(int node) const
+{
+    QVector decls;
+
+    QTextHtmlStyleSelector selector(this);
+
+    int idx = 0;
+    selector.styleSheets.resize((resourceProvider ? 1 : 0)
+                                + externalStyleSheets.count()
+                                + inlineStyleSheets.count());
+    if (resourceProvider)
+        selector.styleSheets[idx++] = resourceProvider->docHandle()->parsedDefaultStyleSheet;
+
+    for (int i = 0; i < externalStyleSheets.count(); ++i, ++idx)
+        selector.styleSheets[idx] = externalStyleSheets.at(i).sheet;
+
+    for (int i = 0; i < inlineStyleSheets.count(); ++i, ++idx)
+        selector.styleSheets[idx] = inlineStyleSheets.at(i);
+
+    selector.medium = QLatin1String("screen");
+
+    QCss::StyleSelector::NodePtr n;
+    n.id = node;
+
+    const char *extraPseudo = 0;
+    if (nodes.at(node).id == Html_a && nodes.at(node).hasHref)
+        extraPseudo = "link";
+    decls = selector.declarationsForNode(n, extraPseudo);
+
+    return decls;
+}
+
+bool QTextHtmlParser::nodeIsChildOf(int i, QTextHTMLElements id) const
+{
+    while (i) {
+        if (at(i).id == id)
+            return true;
+        i = at(i).parent;
+    }
+    return false;
+}
+
+QT_END_NAMESPACE
+#endif // QT_NO_CSSPARSER
+
+#endif // QT_NO_TEXTHTMLPARSER