cmdline::CmdLine Class Reference

#include <CmdLine.h>

Public Member Functions
unsigned	argc () const
	CmdLine (const unsigned argc, const char *const argv[])
bool	has (const char *shortOpt, const char *longOpt=0)
	operator void * () const
template<typename T >
CmdLine &	operator>> (T &obj)
void	optend () const
OneShotIStream	option (const char *shortOpt, const char *longOpt=0)
const char *	progname () const
OneShotIStream	require (const char *shortOpt, const char *longOpt=0)

Private Types
typedef std::list< Pair >	Optlist
typedef std::pair< std::string, int >	Pair

Private Member Functions
	CmdLine ()
Optlist::iterator	find (const char *shortOpt, const char *longOpt)

Private Attributes
Optlist	args_
unsigned	nprogargs_
std::string	progname_

Detailed Description

Definition at line 215 of file CmdLine.h.

Member Typedef Documentation

typedef std::list<Pair> cmdline::CmdLine::Optlist

private

Definition at line 223 of file CmdLine.h.

typedef std::pair<std::string,int> cmdline::CmdLine::Pair

private

Definition at line 222 of file CmdLine.h.

Constructor & Destructor Documentation

cmdline::CmdLine::CmdLine ( const unsigned  argc, const char *const  argv[]  )

inline

Definition at line 239 of file CmdLine.h.

References dir2webdir::argc, mps_fire::i, gen::k, and AlCaHLTBitMon_QueryRunRegistry::string.

        : nprogargs_(0)
    {
        // Parse the program name
        const char *progname = std::strrchr(argv[0], '/');
        if (progname)
            ++progname;
        else
            progname = argv[0];

        // Take into account program name mangling by GNU autotools
        if (strncmp(progname, "lt-", 3) == 0)
            progname += 3;
        progname_ = progname;

        // Make a list of arguments noting on the way if this is
        // a short option, long option, or possible option argument
        bool previousIsOpt = false;
        bool nextIsArg = false;
        for (unsigned i=1; i<argc; ++i)
        {
            if (nextIsArg)
            {
                args_.push_back(Pair(argv[i], previousIsOpt ? 0 : 3));
                previousIsOpt = false;
                ++nprogargs_;
                nextIsArg = false;
            }
            else if (strcmp(argv[i], "-") == 0)
                nextIsArg = true;
            else if (strcmp(argv[i], "--") == 0)
            {
                // End of options
                for (unsigned k=i+1; k<argc; ++k)
                {
                    args_.push_back(Pair(argv[k], 3));
                    ++nprogargs_;
                }
                return;
            }
            else if (strncmp(argv[i], "--", 2) == 0)
            {
                args_.push_back(Pair(argv[i], 2));
                previousIsOpt = true;
            }
            else if (argv[i][0] == '-')
            {
                const unsigned len = strlen(argv[i]);
                for (unsigned k=1; k<len; ++k)
                {
                    std::string dummy("-");
                    dummy += argv[i][k];
                    args_.push_back(Pair(dummy, 1));
                    previousIsOpt = true;
                }
            }
            else
            {
                args_.push_back(Pair(argv[i], previousIsOpt ? 0 : 3));
                previousIsOpt = false;
                ++nprogargs_;
            }
        }
    }

cmdline::CmdLine::CmdLine ( )

private

Member Function Documentation

unsigned cmdline::CmdLine::argc ( ) const

inline

Definition at line 371 of file CmdLine.h.

    {
        return nprogargs_;
    }

Optlist::iterator cmdline::CmdLine::find ( const char *  shortOpt, const char *  longOpt  )

inlineprivate

Definition at line 225 of file CmdLine.h.

Referenced by BeautifulSoup.Tag::__getattr__(), and BeautifulSoup.Tag::firstText().

    {
        Optlist::iterator iend = args_.end();
        for (Optlist::iterator it = args_.begin(); it != iend; ++it)
        {
            if (shortOpt && it->second == 1 && it->first == shortOpt)
                return it;
            if (longOpt && it->second == 2 && it->first == longOpt)
                return it;
        }
        return iend;
    }

bool cmdline::CmdLine::has ( const char *  shortOpt, const char *  longOpt = 0  )

inline

Definition at line 306 of file CmdLine.h.

References spr::find(), and runEdmFileComparison::found.

Referenced by VisualizationOptions::load().

    {
        bool found = false;
        for (Optlist::iterator it = find(shortOpt, longOpt);
             it != args_.end(); it = find(shortOpt, longOpt))
        {
            found = true;
            Optlist::iterator it0(it);
            if (++it != args_.end())
                if (it->second == 0)
                    it->second = 3;
            args_.erase(it0);
        }
        return found;
    }

cmdline::CmdLine::operator void * ( ) const

inline

Definition at line 366 of file CmdLine.h.

    {
        return (void*)(static_cast<unsigned long>(nprogargs_));
    }

template<typename T >

CmdLine& cmdline::CmdLine::operator>> ( T &  obj )

inline

Definition at line 377 of file CmdLine.h.

References cmdline::CmdLineError::CmdLineError(), and hgcalPlots::obj.

    {
        if (!nprogargs_)
            throw CmdLineError("no more input available on the command line");
        Optlist::iterator it = args_.begin();
        for (; it != args_.end(); ++it)
            if (it->second == 0 || it->second == 3)
                break;
        OneShotIStream is(it->first);
        args_.erase(it);
        --nprogargs_;
        is >> obj;
        return *this;
    }

void cmdline::CmdLine::optend ( ) const

inline

Definition at line 357 of file CmdLine.h.

References cmdline::CmdLineError::CmdLineError().

    {
        for (Optlist::const_iterator it = args_.begin();
             it != args_.end(); ++it)
            if (it->second == 1 || it->second == 2)
                throw CmdLineError("invalid command line option \"")
                    << it->first << '"';
    }

OneShotIStream cmdline::CmdLine::option ( const char *  shortOpt, const char *  longOpt = 0  )

inline

Definition at line 322 of file CmdLine.h.

References cmdline::CmdLineError::CmdLineError(), spr::find(), and mps_fire::result.

Referenced by VisualizationOptions::load().

    {
        OneShotIStream result;
        for (Optlist::iterator it = find(shortOpt, longOpt);
             it != args_.end(); it = find(shortOpt, longOpt))
        {
            Optlist::iterator it0(it);
            if (++it != args_.end())
                if (it->second == 0)
                {
                    result = OneShotIStream(it->first);
                    args_.erase(it0, ++it);
                    --nprogargs_;
                    continue;
                }
            throw CmdLineError()
                << "missing command line argument for option \""
                << it0->first << '"';
        }
        return result;
    }

const char* cmdline::CmdLine::progname ( ) const

inline

Definition at line 304 of file CmdLine.h.

{return progname_.c_str();}

OneShotIStream cmdline::CmdLine::require ( const char *  shortOpt, const char *  longOpt = 0  )

inline

Definition at line 344 of file CmdLine.h.

References cmdline::CmdLineError::CmdLineError(), relativeConstraints::empty, cmdline::OneShotIStream::isValid(), TSGForRoadSearch_cfi::option, and alignCSCRings::s.

    {
        const OneShotIStream& is(option(shortOpt, longOpt));
        if (!is.isValid())
        {
            const char empty[] = "";
            const char* s = shortOpt ? shortOpt : (longOpt ? longOpt : empty);
            throw CmdLineError()
                << "required command line option \"" << s << "\" is missing";
        }
        return is;
    }

Member Data Documentation

Optlist cmdline::CmdLine::args_

private

Definition at line 396 of file CmdLine.h.

Referenced by valtools.webpage::parseArgs(), and batchmanager.BatchManager::ParseOptions().

unsigned cmdline::CmdLine::nprogargs_

private

Definition at line 397 of file CmdLine.h.

std::string cmdline::CmdLine::progname_

private

Definition at line 395 of file CmdLine.h.