* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include "cliparser.h"
-#include <QDebug>
-CliParser::CliParser(int argc, char *argv[])
+#include <QString>
+#include <QFileInfo>
+
+CliParser::CliParser(QStringList arguments)
{
- if(argc) {
- for (int i=0; i < argc; ++i)
- argsRaw.append(QString::fromUtf8(argv[i]));
- }
+ argsRaw = arguments;
}
+void CliParser::addSwitch(QString longName, char shortName, QVariant def) {
+ addArgument(CliParserArg::CliArgSwitch, longName, shortName, def);
+}
-CliParser::~CliParser()
-{
+void CliParser::addOption(QString longName, char shortName, QVariant def) {
+ addArgument(CliParserArg::CliArgOption, longName, shortName, def);
}
-void CliParser::addArgument(QString longName, char shortName = 0, QVariant def = QVariant()) {
- CliParserArg arg = CliParserArg(longName, shortName, def);
+void CliParser::addArgument(CliParserArg::CliArgType type, QString longName, char shortName, QVariant def) {
+ CliParserArg arg = CliParserArg(type, longName, shortName, def);
argsHash.insert(longName, arg);
- qDebug() << "Added Argument: " << longName << " with arg-addr: " << &arg;
+ if(shortName && !shortHash.contains(shortName)) shortHash.insert(shortName, argsHash.find(longName));
+}
+
+void CliParser::addHelp(QString key, QString txt) {
+ if(argsHash.contains(key)) argsHash[key].shortHelp = txt;
+ else qWarning("Warning: Helptext for unknown argument '%s' given",key.toLatin1().constData());
}
bool CliParser::parse() {
- qDebug() << "Parse results: ";
- qDebug() << argsHash.value("logfile").value;
- argsHash[QString("logfile")].value = "BOOYA";
+ QStringList::const_iterator currentArg;
+ for (currentArg = argsRaw.constBegin(); currentArg != argsRaw.constEnd(); ++currentArg) {
+ if(currentArg->startsWith("--")) {
+ QString name;
+ // long
+ if(currentArg->contains("=")) {
+ // option
+ QStringList tmp = currentArg->mid(2).split("=");
+ name = tmp.at(0);
+ QString value = tmp.at(1);
+ if(argsHash.contains(name) && !value.isEmpty()){
+ argsHash[name].value = value;
+ }
+ else return false;
+ }
+ else {
+ // switch
+ name = currentArg->mid(2);
+ if(argsHash.contains(name)) {
+ argsHash[name].value = true;
+ }
+ else return false;
+ }
+ }
+ else if(currentArg->startsWith("-")) {
+ char name;
+ // short
+ bool bla = true;
+ if(++currentArg == argsRaw.constEnd()) {
+ --currentArg;
+ bla = false;
+ }
+ // if next arg is a short/long option/switch the current arg is one too
+ if(currentArg->startsWith("-")) {
+ // switch
+ if(bla) --currentArg;
+ for (int i = 0; i < currentArg->mid(1).toAscii().size(); i++) {
+ name = currentArg->mid(1).toAscii().at(i);
+ if(shortHash.contains(name) && shortHash.value(name).value().type == CliParserArg::CliArgSwitch) {
+ shortHash[name].value().value = true;
+ }
+ else return false;
+ }
+ }
+ // if next arg is is no option/switch it's an argument to a shortoption
+ else {
+ // option
+ QString value = currentArg->toUtf8();
+ if(bla) --currentArg;
+ name = currentArg->mid(1).toAscii().at(0);
+ if(bla) currentArg++;
+ if(shortHash.contains(name) && shortHash.value(name).value().type == CliParserArg::CliArgOption) {
+ shortHash[name].value().value = value;
+ }
+ else return false;
+ }
+ }
+ else {
+ // we don't support plain arguments without -/--
+ if(currentArg->toLatin1() != argsRaw.at(0)) {
+ return false;
+ }
+ }
+ }
+ return true;
+}
+
+void CliParser::usage() {
+ qWarning("Usage: %s [arguments]",QFileInfo(argsRaw.at(0)).completeBaseName().toLatin1().constData());
+
+ // get size of longName field
+ QStringList keys = argsHash.keys();
+ uint lnameFieldSize = 0;
+ foreach (QString key, keys) {
+ uint size = 0;
+ if(argsHash.value(key).type == CliParserArg::CliArgOption)
+ size += key.size()*2;
+ else
+ size += key.size();
+ // this is for " --...=[....] "
+ size += 8;
+ if(size > lnameFieldSize) lnameFieldSize = size;
+ }
+
+ QHash<QString, CliParserArg>::const_iterator arg;
+ for(arg = argsHash.constBegin(); arg != argsHash.constEnd(); ++arg) {
+ QString output;
+ QString lnameField;
+
+ if(arg.value().sname) {
+ output.append(" -").append(arg.value().sname).append(",");
+ }
+ else output.append(" ");
+ lnameField.append(" --").append(arg.key().toLatin1().constData());
+ if(arg.value().type == CliParserArg::CliArgOption) {
+ lnameField.append("=[").append(arg.value().lname.toUpper()).append("]");
+ }
+ output.append(lnameField.leftJustified(lnameFieldSize));
+ if(!arg.value().shortHelp.isEmpty()) {
+ output.append(arg.value().shortHelp);
+ }
+ if(arg.value().type == CliParserArg::CliArgOption) {
+ output.append(". Default is: ").append(arg.value().def.toString());
+ }
+ qWarning(output.toLatin1());
+ }
}
QVariant CliParser::value(QString key) {
- return argsHash.value(key).value;
+ if(argsHash.contains(key)) {
+ if(argsHash.value(key).value.isValid())
+ return argsHash.value(key).value;
+ else
+ return argsHash.value(key).def;
+ }
+ else {
+ qWarning("Warning: Requested value of not defined argument '%s'",key.toLatin1().constData());
+ return QVariant();
+ }
}
-CliParserArg::CliParserArg(QString longName, char shortName = 0, QVariant _def = QVariant() )
- : lname(longName),
+CliParserArg::CliParserArg(CliArgType _type, QString longName, char shortName, QVariant _def)
+ : type(_type),
+ lname(longName),
sname(shortName),
+ shortHelp(QString()),
def(_def),
- value(0) {
-
+ value(QVariant()) {
}
CliParserArg::CliParserArg(const CliParserArg &other) {
+ type = other.type;
lname = other.lname;
sname = other.sname;
+ shortHelp = other.shortHelp;
def = other.def;
value = other.value;
}
CliParserArg &CliParserArg::operator=(const CliParserArg &other) {
+ type = other.type;
lname = other.lname;
sname = other.sname;
+ shortHelp = other.shortHelp;
def = other.def;
value = other.value;
return *this;
}
-
#include <QHash>
#include <QVariant>
-class CliParserArg;
-
-class CliParser{
-public:
- inline CliParser() {};
- CliParser(int argc, char *argv[]);
-
- ~CliParser();
- bool parse();
- QVariant value(QString key);
- void addArgument(QString longName, char shortName, QVariant def);
-private:
- QStringList argsRaw;
- QHash<QString, QVariant*> savedValues;
- QHash<QString, CliParserArg> argsHash;
- QHash<QString, QHash<QString, CliParserArg>::iterator> shortHash;
-};
-
class CliParserArg {
public:
+ enum CliArgType {
+ CliArgInvalid,
+ CliArgSwitch,
+ CliArgOption
+ };
+ typedef CliArgType CliArgTypes;
+
inline CliParserArg() {};
CliParserArg(const CliParserArg &other);
- CliParserArg(QString longName, char shortName, QVariant _def);
+ CliParserArg(CliArgType type, QString longName, char shortName = 0, QVariant _def = QVariant());
CliParserArg &operator=(const CliParserArg &other);
-// private:
+
+ CliArgType type;
QString lname;
char sname;
+ QString shortHelp;
QVariant def;
QVariant value;
};
Q_DECLARE_METATYPE(CliParserArg);
+class CliParser{
+public:
+ inline CliParser() {};
+ CliParser(QStringList arguments);
+ bool parse();
+ QVariant value(QString key);
+ void addSwitch(QString longName, char shortName = 0, QVariant def = false);
+ void addOption(QString longName, char shortName = 0, QVariant def = QVariant());
+ void addHelp(QString key, QString txt);
+ void usage();
+private:
+ void addArgument(CliParserArg::CliArgType type, QString longName, char shortName, QVariant def);
+ QStringList argsRaw;
+ QHash<QString, CliParserArg> argsHash;
+ QHash<const char, QHash<QString, CliParserArg>::iterator> shortHash;
+};
+
+
#endif