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****************************************************************************/

/*
  generator.cpp
*/
#include <qdir.h>
#include <qdebug.h>
#include "codemarker.h"
#include "config.h"
#include "doc.h"
#include "editdistance.h"
#include "generator.h"
#include "node.h"
#include "openedlist.h"
#include "quoter.h"
#include "separator.h"
#include "tokenizer.h"

QT_BEGIN_NAMESPACE

QList<Generator *> Generator::generators;
QMap<QString, QMap<QString, QString> > Generator::fmtLeftMaps;
QMap<QString, QMap<QString, QString> > Generator::fmtRightMaps;
QMap<QString, QStringList> Generator::imgFileExts;
QSet<QString> Generator::outputFormats;
QStringList Generator::imageFiles;
QStringList Generator::imageDirs;
QStringList Generator::exampleDirs;
QStringList Generator::exampleImgExts;
QString Generator::outDir;
QString Generator::project;

static void singularPlural(Text& text, const NodeList& nodes)
{
    if (nodes.count() == 1)
        text << " is";
    else
        text << " are";
}

Generator::Generator()
    : amp("&amp;"),
      lt("&lt;"),
      gt("&gt;"),
      quot("&quot;"),
      tag("</?@[^>]*>")
{
    generators.prepend(this);
}

Generator::~Generator()
{
    generators.removeAll(this);
}

void Generator::initializeGenerator(const Config & /* config */)
{
}

void Generator::terminateGenerator()
{
}

void Generator::initialize(const Config &config)
{
    outputFormats = config.getStringSet(CONFIG_OUTPUTFORMATS);
    if (!outputFormats.isEmpty()) {
        outDir = config.getString(CONFIG_OUTPUTDIR);
        if (outDir.isEmpty())
            config.lastLocation().fatal(tr("No output directory specified in configuration file"));

        QDir dirInfo;
        if (dirInfo.exists(outDir)) {
            if (!Config::removeDirContents(outDir))
                config.lastLocation().error(tr("Cannot empty output directory '%1'").arg(outDir));
        }
        else {
            if (!dirInfo.mkpath(outDir))
                config.lastLocation().fatal(tr("Cannot create output directory '%1'").arg(outDir));
        }

        if (!dirInfo.mkdir(outDir + "/images"))
            config.lastLocation().fatal(tr("Cannot create output directory '%1'")
                                        .arg(outDir + "/images"));
        if (!dirInfo.mkdir(outDir + "/images/used-in-examples"))
            config.lastLocation().fatal(tr("Cannot create output directory '%1'")
                                        .arg(outDir + "/images/used-in-examples"));
    }

    imageFiles = config.getStringList(CONFIG_IMAGES);
    imageDirs = config.getStringList(CONFIG_IMAGEDIRS);
    exampleDirs = config.getStringList(CONFIG_EXAMPLEDIRS);
    exampleImgExts = config.getStringList(CONFIG_EXAMPLES + Config::dot +
                                          CONFIG_IMAGEEXTENSIONS);

    QString imagesDotFileExtensions =
        CONFIG_IMAGES + Config::dot + CONFIG_FILEEXTENSIONS;
    QSet<QString> formats = config.subVars(imagesDotFileExtensions);
    QSet<QString>::ConstIterator f = formats.begin();
    while (f != formats.end()) {
        imgFileExts[*f] = config.getStringList(imagesDotFileExtensions +
                                               Config::dot + *f);
        ++f;
    }

    QList<Generator *>::ConstIterator g = generators.begin();
    while (g != generators.end()) {
        if (outputFormats.contains((*g)->format())) {
            (*g)->initializeGenerator(config);
            QStringList extraImages =
                config.getStringList(CONFIG_EXTRAIMAGES+Config::dot+(*g)->format());
            QStringList::ConstIterator e = extraImages.begin();
            while (e != extraImages.end()) {
                QString userFriendlyFilePath;
                QString filePath = Config::findFile(config.lastLocation(),
                                                    imageFiles,
                                                    imageDirs,
                                                    *e,
                                                    imgFileExts[(*g)->format()],
                                                    userFriendlyFilePath);
                if (!filePath.isEmpty())
                    Config::copyFile(config.lastLocation(),
                                     filePath,
                                     userFriendlyFilePath,
                                     (*g)->outputDir() +
                                     "/images");
                ++e;
            }
        }
        ++g;
    }

    QRegExp secondParamAndAbove("[\2-\7]");
    QSet<QString> formattingNames = config.subVars(CONFIG_FORMATTING);
    QSet<QString>::ConstIterator n = formattingNames.begin();
    while (n != formattingNames.end()) {
        QString formattingDotName = CONFIG_FORMATTING + Config::dot + *n;

        QSet<QString> formats = config.subVars(formattingDotName);
        QSet<QString>::ConstIterator f = formats.begin();
        while (f != formats.end()) {
            QString def = config.getString(formattingDotName +
                                           Config::dot + *f);
            if (!def.isEmpty()) {
                int numParams = Config::numParams(def);
                int numOccs = def.count("\1");

                if (numParams != 1) {
                    config.lastLocation().warning(tr("Formatting '%1' must "
                                                     "have exactly one "
                                                     "parameter (found %2)")
                                                  .arg(*n).arg(numParams));
                }
                else if (numOccs > 1) {
                    config.lastLocation().fatal(tr("Formatting '%1' must "
                                                   "contain exactly one "
                                                   "occurrence of '\\1' "
                                                   "(found %2)")
                                                .arg(*n).arg(numOccs));
                }
                else {
                    int paramPos = def.indexOf("\1");
                    fmtLeftMaps[*f].insert(*n, def.left(paramPos));
                    fmtRightMaps[*f].insert(*n, def.mid(paramPos + 1));
                }
            }
            ++f;
        }
        ++n;
    }

    project = config.getString(CONFIG_PROJECT);
}

void Generator::terminate()
{
    QList<Generator *>::ConstIterator g = generators.begin();
    while (g != generators.end()) {
        if (outputFormats.contains((*g)->format()))
            (*g)->terminateGenerator();
        ++g;
    }

    fmtLeftMaps.clear();
    fmtRightMaps.clear();
    imgFileExts.clear();
    imageFiles.clear();
    imageDirs.clear();
    outDir = "";
    QmlClassNode::clear();
}

Generator *Generator::generatorForFormat(const QString& format)
{
    QList<Generator *>::ConstIterator g = generators.begin();
    while (g != generators.end()) {
        if ((*g)->format() == format)
            return *g;
        ++g;
    }
    return 0;
}

void Generator::startText(const Node * /* relative */,
                          CodeMarker * /* marker */)
{
}

void Generator::endText(const Node * /* relative */,
                        CodeMarker * /* marker */)
{
}

int Generator::generateAtom(const Atom * /* atom */,
                            const Node * /* relative */,
                            CodeMarker * /* marker */)
{
    return 0;
}

void Generator::generateClassLikeNode(const InnerNode * /* classe */,
                                      CodeMarker * /* marker */)
{
}

void Generator::generateFakeNode(const FakeNode * /* fake */,
                                 CodeMarker * /* marker */)
{
}

bool Generator::generateText(const Text& text,
                             const Node *relative,
                             CodeMarker *marker)
{
    if (text.firstAtom() != 0) {
        int numAtoms = 0;
        startText(relative, marker);
        generateAtomList(text.firstAtom(),
                         relative,
                         marker,
                         true,
                         numAtoms);
        endText(relative, marker);
        return true;
    }
    return false;
}

#ifdef QDOC_QML
/*!
  Extract sections of markup text surrounded by \e qmltext
  and \e endqmltext and output them.
 */
bool Generator::generateQmlText(const Text& text,
                                const Node *relative,
                                CodeMarker *marker,
                                const QString& /* qmlName */ )
{
    const Atom* atom = text.firstAtom();
    if (atom == 0)
        return false;

    startText(relative, marker);
    while (atom) {
        if (atom->type() != Atom::QmlText)
            atom = atom->next();
        else {
            atom = atom->next();
            while (atom && (atom->type() != Atom::EndQmlText)) {
                int n = 1 + generateAtom(atom, relative, marker);
                while (n-- > 0)
                    atom = atom->next();
            }
        }
    }
    endText(relative, marker);
    return true;
}
#endif

void Generator::generateBody(const Node *node, CodeMarker *marker)
{
    bool quiet = false;

    if (node->type() == Node::Function) {
#if 0        
        const FunctionNode *func = (const FunctionNode *) node;
        if (func->isOverload() && func->metaness() != FunctionNode::Ctor)
            generateOverload(node, marker);
#endif        
    }
    else if (node->type() == Node::Fake) {
        const FakeNode *fake = static_cast<const FakeNode *>(node);
        if (fake->subType() == Node::Example)
            generateExampleFiles(fake, marker);
        else if ((fake->subType() == Node::File) || (fake->subType() == Node::Image))
            quiet = true;
    }

    if (node->doc().isEmpty()) {
        if (!quiet && !node->isReimp()) // ### might be unnecessary
            node->location().warning(tr("No documentation for '%1'")
                            .arg(marker->plainFullName(node)));
    }
    else {
        if (node->type() == Node::Function) {
            const FunctionNode *func = static_cast<const FunctionNode *>(node);
            if (func->reimplementedFrom() != 0)
                generateReimplementedFrom(func, marker);
        }
        
        if (!generateText(node->doc().body(), node, marker))
            if (node->isReimp())
                return;

        if (node->type() == Node::Enum) {
            const EnumNode *enume = (const EnumNode *) node;

            QSet<QString> definedItems;
            QList<EnumItem>::ConstIterator it = enume->items().begin();
            while (it != enume->items().end()) {
                definedItems.insert((*it).name());
                ++it;
            }

            QSet<QString> documentedItems = enume->doc().enumItemNames().toSet();
            QSet<QString> allItems = definedItems + documentedItems;
            if (allItems.count() > definedItems.count() ||
                 allItems.count() > documentedItems.count()) {
                QSet<QString>::ConstIterator a = allItems.begin();
                while (a != allItems.end()) {
                    if (!definedItems.contains(*a)) {
                        QString details;
                        QString best = nearestName(*a, definedItems);
                        if (!best.isEmpty() && !documentedItems.contains(best))
                            details = tr("Maybe you meant '%1'?").arg(best);

                        node->doc().location().warning(
                            tr("No such enum item '%1' in %2").arg(*a).arg(marker->plainFullName(node)),
                            details);
                    }
                    else if (!documentedItems.contains(*a)) {
                        node->doc().location().warning(
                            tr("Undocumented enum item '%1' in %2").arg(*a).arg(marker->plainFullName(node)));
                    }
                    ++a;
                }
            }
        }
        else if (node->type() == Node::Function) {
            const FunctionNode *func = static_cast<const FunctionNode *>(node);
            QSet<QString> definedParams;
            QList<Parameter>::ConstIterator p = func->parameters().begin();
            while (p != func->parameters().end()) {
                if ((*p).name().isEmpty() && (*p).leftType() != QLatin1String("...")
                        && func->name() != QLatin1String("operator++")
                        && func->name() != QLatin1String("operator--")) {
                    node->doc().location().warning(tr("Missing parameter name"));
                }
                else {
                    definedParams.insert((*p).name());
                }
                ++p;
            }

            QSet<QString> documentedParams = func->doc().parameterNames();
            QSet<QString> allParams = definedParams + documentedParams;
            if (allParams.count() > definedParams.count()
                    || allParams.count() > documentedParams.count()) {
                QSet<QString>::ConstIterator a = allParams.begin();
                while (a != allParams.end()) {
                    if (!definedParams.contains(*a)) {
                        QString details;
                        QString best = nearestName(*a, definedParams);
                        if (!best.isEmpty())
                            details = tr("Maybe you meant '%1'?").arg(best);

                        node->doc().location().warning(
                            tr("No such parameter '%1' in %2").arg(*a).arg(marker->plainFullName(node)),
                            details);
                    }
                    else if (!(*a).isEmpty() && !documentedParams.contains(*a)) {
                        bool needWarning = (func->status() > Node::Obsolete);
                        if (func->overloadNumber() > 1) {
                            FunctionNode *primaryFunc =
                                    func->parent()->findFunctionNode(func->name());
                            if (primaryFunc) {
                                foreach (const Parameter &param,
                                         primaryFunc->parameters()) {
                                    if (param.name() == *a) {
                                        needWarning = false;
                                        break;
                                    }
                                }
                            }
                        }
                        if (needWarning && !func->isReimp())
                            node->doc().location().warning(
                                tr("Undocumented parameter '%1' in %2")
                                .arg(*a).arg(marker->plainFullName(node)));
                    }
                    ++a;
                }
            }
/* Something like this return value check should be implemented at some point. */
            if (func->status() > Node::Obsolete && func->returnType() == "bool"
                    && func->reimplementedFrom() == 0 && !func->isOverload()) {
                QString body = func->doc().body().toString();
                if (!body.contains("return", Qt::CaseInsensitive))
                    node->doc().location().warning(tr("Undocumented return value"));
            }
#if 0
            // Now we put this at the top, before the other text.
            if (func->reimplementedFrom() != 0)
                generateReimplementedFrom(func, marker);
#endif            
        }
    }

    if (node->type() == Node::Fake) {
        const FakeNode *fake = static_cast<const FakeNode *>(node);
        if (fake->subType() == Node::File) {
            Text text;
            Quoter quoter;
            Doc::quoteFromFile(fake->doc().location(), quoter, fake->name());
            QString code = quoter.quoteTo(fake->location(), "", "");
            text << Atom(Atom::Code, code);
            generateText(text, fake, marker);
        }
    }
}

void Generator::generateAlsoList(const Node *node, CodeMarker *marker)
{
    QList<Text> alsoList = node->doc().alsoList();
    supplementAlsoList(node, alsoList);

    if (!alsoList.isEmpty()) {
        Text text;
        text << Atom::ParaLeft << "See also ";

        for (int i = 0; i < alsoList.size(); ++i)
            text << alsoList.at(i) << separator(i, alsoList.size());

        text << Atom::ParaRight;
        generateText(text, node, marker);
    }
}

void Generator::generateInherits(const ClassNode *classe, CodeMarker *marker)
{
    QList<RelatedClass>::ConstIterator r;
    int index;

    if (!classe->baseClasses().isEmpty()) {
        Text text;
        text << Atom::ParaLeft << "Inherits ";

        r = classe->baseClasses().begin();
        index = 0;
        while (r != classe->baseClasses().end()) {
            text << Atom(Atom::LinkNode, CodeMarker::stringForNode((*r).node))
                 << Atom(Atom::FormattingLeft, ATOM_FORMATTING_LINK)
                 << Atom(Atom::String, (*r).dataTypeWithTemplateArgs)
                 << Atom(Atom::FormattingRight, ATOM_FORMATTING_LINK);

            if ((*r).access == Node::Protected) {
                text << " (protected)";
            }
            else if ((*r).access == Node::Private) {
                text << " (private)";
            }
            text << separator(index++, classe->baseClasses().count());
            ++r;
        }
        text << Atom::ParaRight;
        generateText(text, classe, marker);
    }
}

#ifdef QDOC_QML
/*!
 */
void Generator::generateQmlInherits(const QmlClassNode* , CodeMarker* )
{
    // stub.
}
#endif

void Generator::generateInheritedBy(const ClassNode *classe,
                                    CodeMarker *marker)
{
    if (!classe->derivedClasses().isEmpty()) {
        Text text;
        text << Atom::ParaLeft << "Inherited by ";

        appendSortedNames(text, classe, classe->derivedClasses(), marker);
        text << Atom::ParaRight;
        generateText(text, classe, marker);
    }
}

/*!
  This function is called when the documentation for an
  example is being formatted. It outputs the list of source
  files comprising the example, and the list of images used
  by the example. The images are copied into a subtree of
  \c{...doc/html/images/used-in-examples/...} 
 */
void Generator::generateFileList(const FakeNode* fake,
                                 CodeMarker* marker,
                                 Node::SubType subtype,
                                 const QString& tag)
{
    int count = 0;
    Text text;
    OpenedList openedList(OpenedList::Bullet);

    text << Atom::ParaLeft << tag << Atom::ParaRight
         << Atom(Atom::ListLeft, openedList.styleString());

    foreach (const Node* child, fake->childNodes()) {
        if (child->subType() == subtype) {
            ++count;
            QString file = child->name();
            if (subtype == Node::Image) {
                if (!file.isEmpty()) {
                    QDir dirInfo;
                    QString userFriendlyFilePath;
                    QString srcPath = Config::findFile(fake->location(),
                                                       QStringList(),
                                                       exampleDirs,
                                                       file,
                                                       exampleImgExts,
                                                       userFriendlyFilePath);
                    userFriendlyFilePath.truncate(userFriendlyFilePath.lastIndexOf('/'));

                    QString imgOutDir = outDir + "/images/used-in-examples/" + userFriendlyFilePath;
                    if (!dirInfo.mkpath(imgOutDir))
                        fake->location().fatal(tr("Cannot create output directory '%1'")
                                               .arg(imgOutDir));

                    QString imgOutName = Config::copyFile(fake->location(),
                                                          srcPath,
                                                          file,
                                                          imgOutDir);
                }

            }

            openedList.next();
            text << Atom(Atom::ListItemNumber, openedList.numberString())
                 << Atom(Atom::ListItemLeft, openedList.styleString())
                 << Atom::ParaLeft
                 << Atom(Atom::Link, file)
                 << Atom(Atom::FormattingLeft, ATOM_FORMATTING_LINK)
                 << file
                 << Atom(Atom::FormattingRight, ATOM_FORMATTING_LINK)
                 << Atom::ParaRight
                 << Atom(Atom::ListItemRight, openedList.styleString());
        }
    }
    text << Atom(Atom::ListRight, openedList.styleString());
    if (count > 0)
        generateText(text, fake, marker);
}

void Generator::generateExampleFiles(const FakeNode *fake, CodeMarker *marker)
{
    if (fake->childNodes().isEmpty())
        return;
    generateFileList(fake, marker, Node::File, QString("Files:"));
    generateFileList(fake, marker, Node::Image, QString("Images:"));
}

#if 0
    QList<Generator *>::ConstIterator g = generators.begin();
    while (g != generators.end()) {
        if (outputFormats.contains((*g)->format())) {
            (*g)->initializeGenerator(config);
            QStringList extraImages =
                config.getStringList(CONFIG_EXTRAIMAGES+Config::dot+(*g)->format());
            QStringList::ConstIterator e = extraImages.begin();
            while (e != extraImages.end()) {
                QString userFriendlyFilePath;
                QString filePath = Config::findFile(config.lastLocation(),
                                                    imageFiles,
                                                    imageDirs,
                                                    *e,
                                                    imgFileExts[(*g)->format()],
                                                    userFriendlyFilePath);
                if (!filePath.isEmpty())
                    Config::copyFile(config.lastLocation(),
                                     filePath,
                                     userFriendlyFilePath,
                                     (*g)->outputDir() +
                                     "/images");
                ++e;
            }
        }
        ++g;
    }
#endif

QString Generator::indent(int level, const QString& markedCode)
{
    if (level == 0)
        return markedCode;

    QString t;
    int column = 0;

    int i = 0;
    while (i < (int) markedCode.length()) {
        if (markedCode.at(i) == QLatin1Char('<')) {
            while (i < (int) markedCode.length()) {
                t += markedCode.at(i++);
                if (markedCode.at(i - 1) == QLatin1Char('>'))
                    break;
            }
        }
        else {
            if (markedCode.at(i) == QLatin1Char('\n')) {
                column = 0;
            }
            else {
                if (column == 0) {
                    for (int j = 0; j < level; j++)
                        t += QLatin1Char(' ');
                }
                column++;
            }
            t += markedCode.at(i++);
        }
    }
    return t;
}

QString Generator::plainCode(const QString& markedCode)
{
    QString t = markedCode;
    t.replace(tag, QString());
    t.replace(quot, QLatin1String("\""));
    t.replace(gt, QLatin1String(">"));
    t.replace(lt, QLatin1String("<"));
    t.replace(amp, QLatin1String("&"));
    return t;
}

QString Generator::typeString(const Node *node)
{
    switch (node->type()) {
    case Node::Namespace:
        return "namespace";
    case Node::Class:
        return "class";
    case Node::Fake:
    default:
        return "documentation";
    case Node::Enum:
        return "enum";
    case Node::Typedef:
        return "typedef";
    case Node::Function:
        return "function";
    case Node::Property:
        return "property";
    }
}

QString Generator::imageFileName(const Node *relative, const QString& fileBase)
{
    QString userFriendlyFilePath;
    QString filePath = Config::findFile(
        relative->doc().location(), imageFiles, imageDirs, fileBase,
        imgFileExts[format()], userFriendlyFilePath);

    if (filePath.isEmpty())
        return QString();

    return QLatin1String("images/")
           + Config::copyFile(relative->doc().location(),
                              filePath, userFriendlyFilePath,
                              outputDir() + QLatin1String("/images"));
}

void Generator::setImageFileExtensions(const QStringList& extensions)
{
    imgFileExts[format()] = extensions;
}

void Generator::unknownAtom(const Atom *atom)
{
    Location::internalError(tr("unknown atom type '%1' in %2 generator")
                            .arg(atom->typeString()).arg(format()));
}

bool Generator::matchAhead(const Atom *atom, Atom::Type expectedAtomType)
{
    return atom->next() != 0 && atom->next()->type() == expectedAtomType;
}

void Generator::supplementAlsoList(const Node *node, QList<Text> &alsoList)
{
    if (node->type() == Node::Function) {
        const FunctionNode *func = static_cast<const FunctionNode *>(node);
        if (func->overloadNumber() == 1) {
            QString alternateName;
            const FunctionNode *alternateFunc = 0;

            if (func->name().startsWith("set") && func->name().size() >= 4) {
                alternateName = func->name()[3].toLower();
                alternateName += func->name().mid(4);
                alternateFunc = func->parent()->findFunctionNode(alternateName);

                if (!alternateFunc) {
                    alternateName = "is" + func->name().mid(3);
                    alternateFunc = func->parent()->findFunctionNode(alternateName);
                    if (!alternateFunc) {
                        alternateName = "has" + func->name().mid(3);
                        alternateFunc = func->parent()->findFunctionNode(alternateName);
                    }
                }
            }
            else if (!func->name().isEmpty()) {
                alternateName = "set";
                alternateName += func->name()[0].toUpper();
                alternateName += func->name().mid(1);
                alternateFunc = func->parent()->findFunctionNode(alternateName);
            }

            if (alternateFunc && alternateFunc->access() != Node::Private) {
                int i;
                for (i = 0; i < alsoList.size(); ++i) {
                    if (alsoList.at(i).toString().contains(alternateName))
                        break;
                }

                if (i == alsoList.size()) {
                    alternateName += "()";

                    Text also;
                    also << Atom(Atom::Link, alternateName)
                         << Atom(Atom::FormattingLeft, ATOM_FORMATTING_LINK)
                         << alternateName
                         << Atom(Atom::FormattingRight, ATOM_FORMATTING_LINK);
                    alsoList.prepend(also);
                }
            }
        }
    }
}

QMap<QString, QString>& Generator::formattingLeftMap()
{
    return fmtLeftMaps[format()];
}

QMap<QString, QString>& Generator::formattingRightMap()
{
    return fmtRightMaps[format()];
}

QString Generator::trimmedTrailing(const QString &string)
{
    QString trimmed = string;
    while (trimmed.length() > 0 && trimmed[trimmed.length() - 1].isSpace())
        trimmed.truncate(trimmed.length() - 1);
    return trimmed;
}

void Generator::generateStatus(const Node *node, CodeMarker *marker)
{
    Text text;

    switch (node->status()) {
    case Node::Commendable:
    case Node::Main:
        break;
    case Node::Preliminary:
        text << Atom::ParaLeft
             << Atom(Atom::FormattingLeft, ATOM_FORMATTING_BOLD)
             << "This "
             << typeString(node)
             << " is under development and is subject to change."
             << Atom(Atom::FormattingRight, ATOM_FORMATTING_BOLD)
             << Atom::ParaRight;
        break;
    case Node::Deprecated:
        text << Atom::ParaLeft;
        if (node->isInnerNode())
            text << Atom(Atom::FormattingLeft, ATOM_FORMATTING_BOLD);
        text << "This " << typeString(node) << " is deprecated.";
        if (node->isInnerNode())
            text << Atom(Atom::FormattingRight, ATOM_FORMATTING_BOLD);
        text << Atom::ParaRight;
        break;
    case Node::Obsolete:
        text << Atom::ParaLeft;
        if (node->isInnerNode())
            text << Atom(Atom::FormattingLeft, ATOM_FORMATTING_BOLD);
        text << "This " << typeString(node) << " is obsolete.";
        if (node->isInnerNode())
            text << Atom(Atom::FormattingRight, ATOM_FORMATTING_BOLD);
        text << " It is provided to keep old source code working. "
             << "We strongly advise against "
             << "using it in new code." << Atom::ParaRight;
        break;
    case Node::Compat:
        // reimplemented in HtmlGenerator subclass
        if (node->isInnerNode()) {
            text << Atom::ParaLeft
                 << Atom(Atom::FormattingLeft, ATOM_FORMATTING_BOLD)
                 << "This "
                 << typeString(node)
                 << " is part of the Qt 3 compatibility layer."
                 << Atom(Atom::FormattingRight, ATOM_FORMATTING_BOLD)
                 << " It is provided to keep old source code working. "
                 << "We strongly advise against "
                 << "using it in new code. See "
                 << Atom(Atom::AutoLink, "Porting to Qt 4")
                 << " for more information."
                 << Atom::ParaRight;
        }
        break;
    case Node::Internal:
    default:
        break;
    }
    generateText(text, node, marker);
}

void Generator::generateThreadSafeness(const Node *node, CodeMarker *marker)
{
    Text text;
    Text theStockLink;
    Node::ThreadSafeness threadSafeness = node->threadSafeness();

    Text rlink;
    rlink << Atom(Atom::Link,"reentrant")
          << Atom(Atom::FormattingLeft, ATOM_FORMATTING_LINK)
          << "reentrant"
          << Atom(Atom::FormattingRight, ATOM_FORMATTING_LINK);

    Text tlink;
    tlink << Atom(Atom::Link,"thread-safe")
          << Atom(Atom::FormattingLeft, ATOM_FORMATTING_LINK)
          << "thread-safe"
          << Atom(Atom::FormattingRight, ATOM_FORMATTING_LINK);

    switch (threadSafeness) {
    case Node::UnspecifiedSafeness:
        break;
    case Node::NonReentrant:
        text << Atom::ParaLeft
             << Atom(Atom::FormattingLeft,ATOM_FORMATTING_BOLD)
             << "Warning:"
             << Atom(Atom::FormattingRight,ATOM_FORMATTING_BOLD)
             << " This "
             << typeString(node)
             << " is not "
             << rlink
             << "."
             << Atom::ParaRight;
        break;
    case Node::Reentrant:
    case Node::ThreadSafe:
        text << Atom::ParaLeft
             << Atom(Atom::FormattingLeft,ATOM_FORMATTING_BOLD)
             << "Note:"
             << Atom(Atom::FormattingRight,ATOM_FORMATTING_BOLD)
             << " ";

        if (node->isInnerNode()) {
            const InnerNode* innerNode = static_cast<const InnerNode*>(node);
            text << "All functions in this "
                 << typeString(node)
                 << " are ";
            if (threadSafeness == Node::ThreadSafe)
                text << tlink;
            else
                text << rlink;

            bool exceptions = false;
            NodeList reentrant;
            NodeList threadsafe;
            NodeList nonreentrant;
            NodeList::ConstIterator c = innerNode->childNodes().begin();
            while (c != innerNode->childNodes().end()) {
                switch ((*c)->threadSafeness()) {
                case Node::Reentrant:
                    reentrant.append(*c);
                    if (threadSafeness == Node::ThreadSafe)
                        exceptions = true;
                    break;
                case Node::ThreadSafe:
                    threadsafe.append(*c);
                    if (threadSafeness == Node::Reentrant)
                        exceptions = true;
                    break;
                case Node::NonReentrant:
                    nonreentrant.append(*c);
                    exceptions = true;
                    break;
                default:
                    break;
                }
                ++c;
            }
            if (!exceptions) 
                text << ".";
            else if (threadSafeness == Node::Reentrant) {
                if (nonreentrant.isEmpty()) {
                    if (!threadsafe.isEmpty()) {
                        text << ", but ";
                        appendFullNames(text,threadsafe,innerNode,marker);
                        singularPlural(text,threadsafe);
                        text << " also " << tlink << ".";
                    }
                    else
                        text << ".";
                }
                else {
                    text << ", except for ";
                    appendFullNames(text,nonreentrant,innerNode,marker);
                    text << ", which";
                    singularPlural(text,nonreentrant);
                    text << " nonreentrant.";
                    if (!threadsafe.isEmpty()) {
                        text << " ";
                        appendFullNames(text,threadsafe,innerNode,marker);
                        singularPlural(text,threadsafe);
                        text << " " << tlink << ".";
                    }
                }
            }
            else { // thread-safe
                if (!nonreentrant.isEmpty() || !reentrant.isEmpty()) {
                    text << ", except for ";
                    if (!reentrant.isEmpty()) {
                        appendFullNames(text,reentrant,innerNode,marker);
                        text << ", which";
                        singularPlural(text,reentrant);
                        text << " only " << rlink;
                        if (!nonreentrant.isEmpty())
                            text << ", and ";
                    }
                    if (!nonreentrant.isEmpty()) {
                        appendFullNames(text,nonreentrant,innerNode,marker);
                        text << ", which";
                        singularPlural(text,nonreentrant);
                        text << " nonreentrant.";
                    }
                    text << ".";
                }
            }
        }
        else {
            text << "This " << typeString(node) << " is ";
            if (threadSafeness == Node::ThreadSafe)
                text << tlink;
            else
                text << rlink;
            text << ".";
        }
        text << Atom::ParaRight;
    }
    generateText(text,node,marker);
}

void Generator::generateSince(const Node *node, CodeMarker *marker)
{
    if (!node->since().isEmpty()) {
        Text text;
        text << Atom::ParaLeft
             << "This "
             << typeString(node)
             << " was introduced in ";
        if (project.isEmpty())
             text << "version";
        else
             text << project;
        text << " " << node->since() << "." << Atom::ParaRight;
        generateText(text, node, marker);
    }
}

/*!
  No longer in use.
 */
void Generator::generateOverload(const Node *node, CodeMarker *marker)
{
    Text text;
    text << Atom::ParaLeft
         << "This function overloads ";
    QString t = node->name() + "()";
    text << Atom::AutoLink << t 
         << Atom::ParaRight;
    generateText(text, node, marker);
}

void Generator::generateReimplementedFrom(const FunctionNode *func,
                                          CodeMarker *marker)
{
    if (func->reimplementedFrom() != 0) {
        const FunctionNode *from = func->reimplementedFrom();
        if (from->access() != Node::Private &&
            from->parent()->access() != Node::Private) {
            Text text;
            text << Atom::ParaLeft << "Reimplemented from ";
            QString fullName =  from->parent()->name() + "::" + from->name() + "()";
            appendFullName(text, from->parent(), fullName, from);
            text << "." << Atom::ParaRight;
            generateText(text, func, marker);
        }
    }
}

const Atom *Generator::generateAtomList(const Atom *atom,
                                        const Node *relative,
                                        CodeMarker *marker,
                                        bool generate,
                                        int &numAtoms)
{
    while (atom) {
        if (atom->type() == Atom::FormatIf) {
            int numAtoms0 = numAtoms;
            bool rightFormat = canHandleFormat(atom->string());
            atom = generateAtomList(atom->next(),
                                    relative,
                                    marker,
                                    generate && rightFormat,
                                    numAtoms);
            if (!atom)
                return 0;

            if (atom->type() == Atom::FormatElse) {
                ++numAtoms;
                atom = generateAtomList(atom->next(),
                                        relative,
                                        marker,
                                        generate && !rightFormat,
                                        numAtoms);
                if (!atom)
                    return 0;
            }

            if (atom->type() == Atom::FormatEndif) {
                if (generate && numAtoms0 == numAtoms) {
                    relative->location().warning(tr("Output format %1 not handled")
                                                 .arg(format()));
                    Atom unhandledFormatAtom(Atom::UnhandledFormat, format());
                    generateAtomList(&unhandledFormatAtom,
                                     relative,
                                     marker,
                                     generate,
                                     numAtoms);
                }
                atom = atom->next();
            }
        }
        else if (atom->type() == Atom::FormatElse ||
                 atom->type() == Atom::FormatEndif) {
            return atom;
        }
        else {
            int n = 1;
            if (generate) {
                n += generateAtom(atom, relative, marker);
                numAtoms += n;
            }
            while (n-- > 0)
                atom = atom->next();
        }
    }
    return 0;
}

void Generator::appendFullName(Text& text,
                               const Node *apparentNode,
                               const Node *relative,
                               CodeMarker *marker,
                               const Node *actualNode)
{
    if (actualNode == 0)
        actualNode = apparentNode;
    text << Atom(Atom::LinkNode, CodeMarker::stringForNode(actualNode))
         << Atom(Atom::FormattingLeft, ATOM_FORMATTING_LINK)
         << Atom(Atom::String, marker->plainFullName(apparentNode, relative))
         << Atom(Atom::FormattingRight, ATOM_FORMATTING_LINK);
}

void Generator::appendFullName(Text& text,
                               const Node *apparentNode,
                               const QString& fullName,
                               const Node *actualNode)
{
    if (actualNode == 0)
        actualNode = apparentNode;
    text << Atom(Atom::LinkNode, CodeMarker::stringForNode(actualNode))
         << Atom(Atom::FormattingLeft, ATOM_FORMATTING_LINK)
         << Atom(Atom::String, fullName)
         << Atom(Atom::FormattingRight, ATOM_FORMATTING_LINK);
}

void Generator::appendFullNames(Text& text,
                                const NodeList& nodes,
                                const Node* relative,
                                CodeMarker* marker)
{
    NodeList::ConstIterator n = nodes.begin();
    int index = 0;
    while (n != nodes.end()) {
        appendFullName(text,*n,relative,marker);
        text << comma(index++,nodes.count());
        ++n;
    }
}

void Generator::appendSortedNames(Text& text,
                                  const ClassNode *classe,
                                  const QList<RelatedClass> &classes,
                                  CodeMarker *marker)
{
    QList<RelatedClass>::ConstIterator r;
    QMap<QString,Text> classMap;
    int index = 0;

    r = classes.begin();
    while (r != classes.end()) {
        if ((*r).node->access() == Node::Public &&
            (*r).node->status() != Node::Internal
            && !(*r).node->doc().isEmpty()) {
            Text className;
            appendFullName(className, (*r).node, classe, marker);
            classMap[className.toString().toLower()] = className;
        }
        ++r;
    }

    QStringList classNames = classMap.keys();
    classNames.sort();

    foreach (const QString &className, classNames) {
        text << classMap[className];
        text << separator(index++, classNames.count());
    }
}

void Generator::appendSortedQmlNames(Text& text,
                                     const Node* base,
                                     const NodeList& subs,
                                     CodeMarker *marker)
{
    QMap<QString,Text> classMap;
    int index = 0;

#ifdef DEBUG_MULTIPLE QDOCCONF_FILES
    qDebug() << "Generator::appendSortedQmlNames():" << base->name() << "is inherited by...";
#endif    
    for (int i = 0; i < subs.size(); ++i) {
        Text t;
#ifdef DEBUG_MULTIPLE QDOCCONF_FILES
        qDebug() << "    " << subs[i]->name();
#endif        
        appendFullName(t, subs[i], base, marker);
        classMap[t.toString().toLower()] = t;
    }

    QStringList names = classMap.keys();
    names.sort();

    foreach (const QString &name, names) {
        text << classMap[name];
        text << separator(index++, names.count());
    }
}

int Generator::skipAtoms(const Atom *atom, Atom::Type type) const
{
    int skipAhead = 0;
    atom = atom->next();
    while (atom != 0 && atom->type() != type) {
        skipAhead++;
        atom = atom->next();
    }
    return skipAhead;
}

QString Generator::fullName(const Node *node,
                            const Node *relative,
                            CodeMarker *marker) const
{
    if (node->type() == Node::Fake)
        return static_cast<const FakeNode *>(node)->title();
    else if (node->type() == Node::Class &&
        !(static_cast<const ClassNode *>(node))->serviceName().isEmpty())
        return (static_cast<const ClassNode *>(node))->serviceName();
    else
        return marker->plainFullName(node, relative);
}

QT_END_NAMESPACE