/*!
Load, parse, and process a qdoc configuration file. This
function is only called by the other load() function, but
this one is recursive, i.e., it calls itself when it sees
an \c{include} statement in the qdog configuration file.
*/
void Config::load(Location location, const QString& fileName)
{
QRegExp keySyntax("\\w+(?:\\.\\w+)*");
#define SKIP_CHAR() \
do { \
location.advance(c); \
++i; \
c = text.at(i); \
cc = c.unicode(); \
} while (0)
#define SKIP_SPACES() \
while (c.isSpace() && cc != '\n') \
SKIP_CHAR()
#define PUT_CHAR() \
word += c; \
SKIP_CHAR();
if (location.depth() > 16)
location.fatal(tr("Too many nested includes"));
QFile fin(fileName);
if (!fin.open(QFile::ReadOnly | QFile::Text)) {
fin.setFileName(fileName + ".qdoc");
if (!fin.open(QFile::ReadOnly | QFile::Text))
location.fatal(tr("Cannot open file '%1': %2").arg(fileName).arg(fin.errorString()));
}
QString text = fin.readAll();
text += QLatin1String("\n\n");
text += QChar('\0');
fin.close();
location.push(fileName);
location.start();
int i = 0;
QChar c = text.at(0);
uint cc = c.unicode();
while (i < (int) text.length()) {
if (cc == 0)
++i;
else if (c.isSpace()) {
SKIP_CHAR();
}
else if (cc == '#') {
do {
SKIP_CHAR();
} while (cc != '\n');
}
else if (isMetaKeyChar(c)) {
Location keyLoc = location;
bool plus = false;
QString stringValue;
QStringList stringListValue;
QString word;
bool inQuote = false;
bool prevWordQuoted = true;
bool metWord = false;
MetaStack stack;
do {
stack.process(c, location);
SKIP_CHAR();
} while (isMetaKeyChar(c));
QStringList keys = stack.getExpanded(location);
SKIP_SPACES();
if (keys.count() == 1 && keys.first() == "include") {
QString includeFile;
if (cc != '(')
location.fatal(tr("Bad include syntax"));
SKIP_CHAR();
SKIP_SPACES();
while (!c.isSpace() && cc != '#' && cc != ')') {
includeFile += c;
SKIP_CHAR();
}
SKIP_SPACES();
if (cc != ')')
location.fatal(tr("Bad include syntax"));
SKIP_CHAR();
SKIP_SPACES();
if (cc != '#' && cc != '\n')
location.fatal(tr("Trailing garbage"));
/*
Here is the recursive call.
*/
load(location,
QFileInfo(QFileInfo(fileName).dir(), includeFile)
.filePath());
}
else {
/*
It wasn't an include statement, so it;s something else.
*/
if (cc == '+') {
plus = true;
SKIP_CHAR();
}
if (cc != '=')
location.fatal(tr("Expected '=' or '+=' after key"));
SKIP_CHAR();
SKIP_SPACES();
for (;;) {
if (cc == '\\') {
int metaCharPos;
SKIP_CHAR();
if (cc == '\n') {
SKIP_CHAR();
}
else if (cc > '0' && cc < '8') {
word += QChar(c.digitValue());
SKIP_CHAR();
}
else if ((metaCharPos = QString(QLatin1String("abfnrtv")).indexOf(c)) != -1) {
word += "\a\b\f\n\r\t\v"[metaCharPos];
SKIP_CHAR();
}
else {
PUT_CHAR();
}
}
else if (c.isSpace() || cc == '#') {
if (inQuote) {
if (cc == '\n')
location.fatal(tr("Unterminated string"));
PUT_CHAR();
}
else {
if (!word.isEmpty()) {
if (metWord)
stringValue += QLatin1Char(' ');
stringValue += word;
stringListValue << word;
metWord = true;
word.clear();
prevWordQuoted = false;
}
if (cc == '\n' || cc == '#')
break;
SKIP_SPACES();
}
}
else if (cc == '"') {
if (inQuote) {
if (!prevWordQuoted)
stringValue += QLatin1Char(' ');
stringValue += word;
if (!word.isEmpty())
stringListValue << word;
metWord = true;
word.clear();
prevWordQuoted = true;
}
inQuote = !inQuote;
SKIP_CHAR();
}
else if (cc == '$') {
QString var;
SKIP_CHAR();
while (c.isLetterOrNumber() || cc == '_') {
var += c;
SKIP_CHAR();
}
if (!var.isEmpty()) {
char *val = getenv(var.toLatin1().data());
if (val == 0) {
location.fatal(tr("Environment variable '%1' undefined").arg(var));
}
else {
word += QString(val);
}
}
}
else {
if (!inQuote && cc == '=')
location.fatal(tr("Unexpected '='"));
PUT_CHAR();
}
}
QStringList::ConstIterator key = keys.begin();
while (key != keys.end()) {
if (!keySyntax.exactMatch(*key))
keyLoc.fatal(tr("Invalid key '%1'").arg(*key));
if (plus) {
if (locMap[*key].isEmpty()) {
locMap[*key] = keyLoc;
}
else {
locMap[*key].setEtc(true);
}
if (stringValueMap[*key].isEmpty()) {
stringValueMap[*key] = stringValue;
}
else {
stringValueMap[*key] +=
QLatin1Char(' ') + stringValue;
}
stringListValueMap[*key] += stringListValue;
}
else {
locMap[*key] = keyLoc;
stringValueMap[*key] = stringValue;
stringListValueMap[*key] = stringListValue;
}
++key;
}
}
}
else {
location.fatal(tr("Unexpected character '%1' at beginning of line")
.arg(c));
}
}
}
/*!
Load, parse, and process a qdoc configuration file. This
function is only called by the other load() function, but
this one is recursive, i.e., it calls itself when it sees
an \c{include} statement in the qdoc configuration file.
*/
void Config::load(Location location, const QString& fileName)
{
QFileInfo fileInfo(fileName);
QString path = fileInfo.canonicalPath();
pushWorkingDir(path);
QDir::setCurrent(path);
QRegExp keySyntax(QLatin1String("\\w+(?:\\.\\w+)*"));
#define SKIP_CHAR() \
do { \
location.advance(c); \
++i; \
c = text.at(i); \
cc = c.unicode(); \
} while (0)
#define SKIP_SPACES() \
while (c.isSpace() && cc != '\n') \
SKIP_CHAR()
#define PUT_CHAR() \
word += c; \
SKIP_CHAR();
if (location.depth() > 16)
location.fatal(tr("Too many nested includes"));
QFile fin(fileInfo.fileName());
if (!fin.open(QFile::ReadOnly | QFile::Text)) {
if (!Config::installDir.isEmpty()) {
int prefix = location.filePath().length() - location.fileName().length();
fin.setFileName(Config::installDir + QLatin1Char('/') + fileName.right(fileName.length() - prefix));
}
if (!fin.open(QFile::ReadOnly | QFile::Text))
location.fatal(tr("Cannot open file '%1': %2").arg(fileName).arg(fin.errorString()));
}
QTextStream stream(&fin);
#ifndef QT_NO_TEXTCODEC
stream.setCodec("UTF-8");
#endif
QString text = stream.readAll();
text += QLatin1String("\n\n");
text += QLatin1Char('\0');
fin.close();
location.push(fileName);
location.start();
int i = 0;
QChar c = text.at(0);
uint cc = c.unicode();
while (i < (int) text.length()) {
if (cc == 0) {
++i;
} else if (c.isSpace()) {
SKIP_CHAR();
} else if (cc == '#') {
do {
SKIP_CHAR();
} while (cc != '\n');
} else if (isMetaKeyChar(c)) {
Location keyLoc = location;
bool plus = false;
QString stringValue;
QStringList rhsValues;
QString word;
bool inQuote = false;
bool prevWordQuoted = true;
bool metWord = false;
MetaStack stack;
do {
stack.process(c, location);
SKIP_CHAR();
} while (isMetaKeyChar(c));
QStringList keys = stack.getExpanded(location);
SKIP_SPACES();
if (keys.count() == 1 && keys.first() == QLatin1String("include")) {
QString includeFile;
if (cc != '(')
location.fatal(tr("Bad include syntax"));
SKIP_CHAR();
SKIP_SPACES();
while (!c.isSpace() && cc != '#' && cc != ')') {
if (cc == '$') {
QString var;
SKIP_CHAR();
while (c.isLetterOrNumber() || cc == '_') {
var += c;
SKIP_CHAR();
}
if (!var.isEmpty()) {
const QByteArray val = qgetenv(var.toLatin1().data());
if (val.isNull()) {
location.fatal(tr("Environment variable '%1' undefined").arg(var));
}
else {
includeFile += QString::fromLatin1(val);
}
}
} else {
includeFile += c;
SKIP_CHAR();
}
}
SKIP_SPACES();
if (cc != ')')
location.fatal(tr("Bad include syntax"));
SKIP_CHAR();
SKIP_SPACES();
if (cc != '#' && cc != '\n')
location.fatal(tr("Trailing garbage"));
/*
Here is the recursive call.
*/
load(location, QFileInfo(QDir(path), includeFile).filePath());
}
else {
/*
It wasn't an include statement, so it's something else.
We must see either '=' or '+=' next. If not, fatal error.
*/
if (cc == '+') {
plus = true;
SKIP_CHAR();
}
if (cc != '=')
location.fatal(tr("Expected '=' or '+=' after key"));
SKIP_CHAR();
SKIP_SPACES();
for (;;) {
if (cc == '\\') {
int metaCharPos;
SKIP_CHAR();
if (cc == '\n') {
SKIP_CHAR();
}
else if (cc > '0' && cc < '8') {
word += QChar(c.digitValue());
SKIP_CHAR();
}
else if ((metaCharPos = QString::fromLatin1("abfnrtv").indexOf(c)) != -1) {
word += QLatin1Char("\a\b\f\n\r\t\v"[metaCharPos]);
SKIP_CHAR();
}
else {
PUT_CHAR();
}
}
else if (c.isSpace() || cc == '#') {
if (inQuote) {
if (cc == '\n')
location.fatal(tr("Unterminated string"));
PUT_CHAR();
}
else {
if (!word.isEmpty()) {
if (metWord)
stringValue += QLatin1Char(' ');
stringValue += word;
#if 0
if (metWord)
rhsValues << QString(" " + word);
else
#endif
rhsValues << word;
metWord = true;
word.clear();
prevWordQuoted = false;
}
if (cc == '\n' || cc == '#')
break;
SKIP_SPACES();
}
}
else if (cc == '"') {
if (inQuote) {
if (!prevWordQuoted)
stringValue += QLatin1Char(' ');
stringValue += word;
if (!word.isEmpty())
rhsValues << word;
metWord = true;
word.clear();
prevWordQuoted = true;
}
inQuote = !inQuote;
SKIP_CHAR();
}
else if (cc == '$') {
QString var;
SKIP_CHAR();
while (c.isLetterOrNumber() || cc == '_') {
var += c;
SKIP_CHAR();
}
if (!var.isEmpty()) {
const QByteArray val = qgetenv(var.toLatin1().constData());
if (val.isNull()) {
location.fatal(tr("Environment variable '%1' undefined").arg(var));
}
else {
word += QString::fromLatin1(val);
}
}
}
else {
if (!inQuote && cc == '=')
location.fatal(tr("Unexpected '='"));
PUT_CHAR();
}
}
QStringList::ConstIterator key = keys.constBegin();
while (key != keys.constEnd()) {
if (!keySyntax.exactMatch(*key))
keyLoc.fatal(tr("Invalid key '%1'").arg(*key));
ConfigVarMultimap::Iterator i;
i = configVars_.insert(*key, ConfigVar(*key, rhsValues, QDir::currentPath(), keyLoc));
i.value().plus_ = plus;
++key;
}
}
} else {
location.fatal(tr("Unexpected character '%1' at beginning of line").arg(c));
}
}
popWorkingDir();
if (!workingDirs_.isEmpty())
QDir::setCurrent(workingDirs_.top());
}