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#include <QByteArray>
#include <QString>
#include <QVarLengthArray>
#include <QFile>
#include <QProcess>
#include <QMetaObject>
#include <QList>
#include <QRegExp>
#include <QCoreApplication>
#include <QLibraryInfo>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdlib.h>
#include "qdbusconnection.h" // for the Export* flags
// copied from dbus-protocol.h:
static const char docTypeHeader[] =
"<!DOCTYPE node PUBLIC \"-//freedesktop//DTD D-BUS Object Introspection 1.0//EN\" "
"\"http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd\">\n";
// in qdbusxmlgenerator.cpp
QT_BEGIN_NAMESPACE
extern QDBUS_EXPORT QString qDBusGenerateMetaObjectXml(QString interface, const QMetaObject *mo,
const QMetaObject *base, int flags);
QT_END_NAMESPACE
#define PROGRAMNAME "qdbuscpp2xml"
#define PROGRAMVERSION "0.1"
#define PROGRAMCOPYRIGHT "Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)."
static QString outputFile;
static int flags;
static const char help[] =
"Usage: " PROGRAMNAME " [options...] [files...]\n"
"Parses the C++ source or header file containing a QObject-derived class and\n"
"produces the D-Bus Introspection XML."
"\n"
"Options:\n"
" -p|-s|-m Only parse scriptable Properties, Signals and Methods (slots)\n"
" -P|-S|-M Parse all Properties, Signals and Methods (slots)\n"
" -a Output all scriptable contents (equivalent to -psm)\n"
" -A Output all contents (equivalent to -PSM)\n"
" -o <filename> Write the output to file <filename>\n"
" -h Show this information\n"
" -V Show the program version and quit.\n"
"\n";
class MocParser
{
void parseError();
QByteArray readLine();
void loadIntData(uint *&data);
void loadStringData(char *&stringdata);
QIODevice *input;
const char *filename;
int lineNumber;
public:
~MocParser();
void parse(const char *filename, QIODevice *input, int lineNumber = 0);
QList<QMetaObject> objects;
};
void MocParser::parseError()
{
fprintf(stderr, PROGRAMNAME ": error parsing input file '%s' line %d \n", filename, lineNumber);
exit(1);
}
QByteArray MocParser::readLine()
{
++lineNumber;
return input->readLine();
}
void MocParser::loadIntData(uint *&data)
{
data = 0; // initialise
QVarLengthArray<uint> array;
QRegExp rx(QLatin1String("(\\d+|0x[0-9abcdef]+)"), Qt::CaseInsensitive);
while (!input->atEnd()) {
QString line = QLatin1String(readLine());
int pos = line.indexOf(QLatin1String("//"));
if (pos != -1)
line.truncate(pos); // drop comments
if (line == QLatin1String("};\n")) {
// end of data
data = new uint[array.count()];
memcpy(data, array.data(), array.count() * sizeof(*data));
return;
}
pos = 0;
while ((pos = rx.indexIn(line, pos)) != -1) {
QString num = rx.cap(1);
if (num.startsWith(QLatin1String("0x")))
array.append(num.mid(2).toUInt(0, 16));
else
array.append(num.toUInt());
pos += rx.matchedLength();
}
}
parseError();
}
void MocParser::loadStringData(char *&stringdata)
{
stringdata = 0;
QVarLengthArray<char, 1024> array;
while (!input->atEnd()) {
QByteArray line = readLine();
if (line == "};\n") {
// end of data
stringdata = new char[array.count()];
memcpy(stringdata, array.data(), array.count() * sizeof(*stringdata));
return;
}
int start = line.indexOf('"');
if (start == -1)
parseError();
int len = line.length() - 1;
line.truncate(len); // drop ending \n
if (line.at(len - 1) != '"')
parseError();
--len;
++start;
for ( ; start < len; ++start)
if (line.at(start) == '\\') {
// parse escaped sequence
++start;
if (start == len)
parseError();
QChar c(QLatin1Char(line.at(start)));
if (!c.isDigit()) {
switch (c.toLatin1()) {
case 'a':
array.append('\a');
break;
case 'b':
array.append('\b');
break;
case 'f':
array.append('\f');
break;
case 'n':
array.append('\n');
break;
case 'r':
array.append('\r');
break;
case 't':
array.append('\t');
break;
case 'v':
array.append('\v');
break;
case '\\':
case '?':
case '\'':
case '"':
array.append(c.toLatin1());
break;
case 'x':
if (start + 2 <= len)
parseError();
array.append(char(line.mid(start + 1, 2).toInt(0, 16)));
break;
default:
array.append(c.toLatin1());
fprintf(stderr, PROGRAMNAME ": warning: invalid escape sequence '\\%c' found in input",
c.toLatin1());
}
} else {
// octal
QRegExp octal(QLatin1String("([0-7]+)"));
if (octal.indexIn(QLatin1String(line), start) == -1)
parseError();
array.append(char(octal.cap(1).toInt(0, 8)));
}
} else {
array.append(line.at(start));
}
}
parseError();
}
void MocParser::parse(const char *fname, QIODevice *io, int lineNum)
{
filename = fname;
input = io;
lineNumber = lineNum;
while (!input->atEnd()) {
QByteArray line = readLine();
if (line.startsWith("static const uint qt_meta_data_")) {
// start of new class data
uint *data;
loadIntData(data);
// find the start of the string data
do {
line = readLine();
if (input->atEnd())
parseError();
} while (!line.startsWith("static const char qt_meta_stringdata_"));
char *stringdata;
loadStringData(stringdata);
QMetaObject mo;
mo.d.superdata = &QObject::staticMetaObject;
mo.d.stringdata = stringdata;
mo.d.data = data;
mo.d.extradata = 0;
objects.append(mo);
}
}
fname = 0;
input = 0;
}
MocParser::~MocParser()
{
foreach (QMetaObject mo, objects) {
delete const_cast<char *>(mo.d.stringdata);
delete const_cast<uint *>(mo.d.data);
}
}
static void showHelp()
{
printf("%s", help);
exit(0);
}
static void showVersion()
{
printf("%s version %s\n", PROGRAMNAME, PROGRAMVERSION);
printf("D-Bus QObject-to-XML converter\n");
exit(0);
}
static void parseCmdLine(QStringList &arguments)
{
for (int i = 1; i < arguments.count(); ++i) {
const QString arg = arguments.at(i);
if (arg == QLatin1String("--help"))
showHelp();
if (!arg.startsWith(QLatin1Char('-')))
continue;
char c = arg.count() == 2 ? arg.at(1).toLatin1() : char(0);
switch (c) {
case 'P':
flags |= QDBusConnection::ExportNonScriptableProperties;
// fall through
case 'p':
flags |= QDBusConnection::ExportScriptableProperties;
break;
case 'S':
flags |= QDBusConnection::ExportNonScriptableSignals;
// fall through
case 's':
flags |= QDBusConnection::ExportScriptableSignals;
break;
case 'M':
flags |= QDBusConnection::ExportNonScriptableSlots;
// fall through
case 'm':
flags |= QDBusConnection::ExportScriptableSlots;
break;
case 'A':
flags |= QDBusConnection::ExportNonScriptableContents;
// fall through
case 'a':
flags |= QDBusConnection::ExportScriptableContents;
break;
case 'o':
if (arguments.count() < i + 2 || arguments.at(i + 1).startsWith(QLatin1Char('-'))) {
printf("-o expects a filename\n");
exit(1);
}
outputFile = arguments.takeAt(i + 1);
break;
case 'h':
case '?':
showHelp();
break;
case 'V':
showVersion();
break;
default:
printf("unknown option: \"%s\"\n", qPrintable(arg));
exit(1);
}
}
if (flags == 0)
flags = QDBusConnection::ExportScriptableContents
| QDBusConnection::ExportNonScriptableContents;
}
int main(int argc, char **argv)
{
QCoreApplication app(argc, argv);
QStringList args = app.arguments();
MocParser parser;
parseCmdLine(args);
for (int i = 1; i < args.count(); ++i) {
const QString arg = args.at(i);
if (arg.startsWith(QLatin1Char('-')))
continue;
QFile f(arg);
if (!f.open(QIODevice::ReadOnly|QIODevice::Text)) {
fprintf(stderr, PROGRAMNAME ": could not open '%s': %s\n",
qPrintable(arg), qPrintable(f.errorString()));
return 1;
}
f.readLine();
QByteArray line = f.readLine();
if (line.contains("Meta object code from reading C++ file"))
// this is a moc-generated file
parser.parse(argv[i], &f, 3);
else {
// run moc on this file
QProcess proc;
proc.start(QLibraryInfo::location(QLibraryInfo::BinariesPath) + QLatin1String("/moc"), QStringList() << QFile::decodeName(argv[i]), QIODevice::ReadOnly | QIODevice::Text);
if (!proc.waitForStarted()) {
fprintf(stderr, PROGRAMNAME ": could not execute moc! Aborting.\n");
return 1;
}
proc.closeWriteChannel();
if (!proc.waitForFinished() || proc.exitStatus() != QProcess::NormalExit ||
proc.exitCode() != 0) {
// output the moc errors:
fprintf(stderr, "%s", proc.readAllStandardError().constData());
fprintf(stderr, PROGRAMNAME ": exit code %d from moc. Aborting\n", proc.exitCode());
return 1;
}
fprintf(stderr, "%s", proc.readAllStandardError().constData());
parser.parse(argv[i], &proc, 1);
}
f.close();
}
QFile output;
if (outputFile.isEmpty()) {
output.open(stdout, QIODevice::WriteOnly);
} else {
output.setFileName(outputFile);
if (!output.open(QIODevice::WriteOnly)) {
fprintf(stderr, PROGRAMNAME ": could not open output file '%s': %s",
qPrintable(outputFile), qPrintable(output.errorString()));
return 1;
}
}
output.write(docTypeHeader);
output.write("<node>\n");
foreach (QMetaObject mo, parser.objects) {
QString xml = qDBusGenerateMetaObjectXml(QString(), &mo, &QObject::staticMetaObject,
flags);
output.write(xml.toLocal8Bit());
}
output.write("</node>\n");
return 0;
}