bool TableGenerator::processFile(const QString &composeFileName)
{
QFile composeFile(composeFileName);
if (composeFile.open(QIODevice::ReadOnly)) {
parseComposeFile(&composeFile);
return true;
}
qWarning() << QString(QLatin1String("Qt Warning: Compose file: \"%1\" can't be found"))
.arg(composeFile.fileName());
return false;
}
void TableGenerator::findComposeFile()
{
bool found = false;
// check if XCOMPOSEFILE points to a Compose file
if (qEnvironmentVariableIsSet("XCOMPOSEFILE")) {
QString composeFile(qgetenv("XCOMPOSEFILE"));
if (composeFile.endsWith(QLatin1String("Compose")))
found = processFile(composeFile);
else
qWarning("Qt Warning: XCOMPOSEFILE doesn't point to a valid Compose file");
#ifdef DEBUG_GENERATOR
if (found)
qDebug() << "Using Compose file from: " << composeFile;
#endif
}
// check if user’s home directory has a file named .XCompose
if (!found && cleanState()) {
QString composeFile = qgetenv("HOME") + QStringLiteral("/.XCompose");
if (QFile(composeFile).exists())
found = processFile(composeFile);
#ifdef DEBUG_GENERATOR
if (found)
qDebug() << "Using Compose file from: " << composeFile;
#endif
}
// check for the system provided compose files
if (!found && cleanState()) {
QString table = composeTableForLocale();
if (cleanState()) {
if (table.isEmpty())
// no table mappings for the system's locale in the compose.dir
m_state = UnsupportedLocale;
else
found = processFile(systemComposeDir() + QLatin1Char('/') + table);
#ifdef DEBUG_GENERATOR
if (found)
qDebug() << "Using Compose file from: " <<
systemComposeDir() + QLatin1Char('/') + table;
#endif
}
}
if (found && m_composeTable.isEmpty())
m_state = EmptyTable;
if (!found)
m_state = MissingComposeFile;
}
TableGenerator::TableGenerator() : m_state(NoErrors),
m_systemComposeDir(QString())
{
initPossibleLocations();
QString composeFilePath = findComposeFile();
#ifdef DEBUG_GENERATOR
// don't use cache when in debug mode.
if (!composeFilePath.isEmpty())
qDebug() << "Using Compose file from: " << composeFilePath;
#else
QComposeCacheFileHeader fileInfo = readFileMetadata(composeFilePath);
if (fileInfo.fileSize != 0)
m_composeTable = loadCache(fileInfo);
#endif
if (m_composeTable.isEmpty() && cleanState()) {
if (composeFilePath.isEmpty()) {
m_state = MissingComposeFile;
} else {
QFile composeFile(composeFilePath);
composeFile.open(QIODevice::ReadOnly);
parseComposeFile(&composeFile);
orderComposeTable();
if (m_composeTable.isEmpty()) {
m_state = EmptyTable;
#ifndef DEBUG_GENERATOR
// don't save cache when in debug mode
} else {
fileInfo.cacheVersion = SupportedCacheVersion;
saveCache(fileInfo, m_composeTable);
#endif
}
}
}
#ifdef DEBUG_GENERATOR
printComposeTable();
#endif
}