DocBookOutput.h

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// -*- Mode: c++; c-basic-offset: 4; tab-width: 4; -*-

/****************************************************************************** 
 * 
 *  file:  DocBookOutput.h
 * 
 *  Copyright (c) 2004, Michael E. Smoot
 *  All rights reverved.
 * 
 *  See the file COPYING in the top directory of this distribution for
 *  more information.
 *  
 *  THE SOFTWARE IS PROVIDED _AS IS_, WITHOUT WARRANTY OF ANY KIND, EXPRESS 
 *  OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
 *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
 *  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
 *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
 *  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
 *  DEALINGS IN THE SOFTWARE.  
 *  
 *****************************************************************************/ 

#ifndef TCLAP_DOCBOOKOUTPUT_H
#define TCLAP_DOCBOOKOUTPUT_H

#include <string>
#include <vector>
#include <list>
#include <iostream>
#include <algorithm>

#include <tclap/CmdLineInterface.h>
#include <tclap/CmdLineOutput.h>
#include <tclap/XorHandler.h>
#include <tclap/Arg.h>

namespace TCLAP {

class DocBookOutput : public CmdLineOutput
{

        public:

                virtual void usage(CmdLineInterface& c);

                virtual void version(CmdLineInterface& c);

                virtual void failure(CmdLineInterface& c, 
                                                     ArgException& e );

        protected:

                void substituteSpecialChars( std::string& s, char r, std::string& x );
                void removeChar( std::string& s, char r);
                void basename( std::string& s );

                void printShortArg(Arg* it);
                void printLongArg(Arg* it);

                char theDelimiter;
};


inline void DocBookOutput::version(CmdLineInterface& _cmd) 
{ 
        std::cout << _cmd.getVersion() << std::endl;
}

inline void DocBookOutput::usage(CmdLineInterface& _cmd ) 
{
        std::list<Arg*> argList = _cmd.getArgList();
        std::string progName = _cmd.getProgramName();
        std::string xversion = _cmd.getVersion();
        theDelimiter = _cmd.getDelimiter();
        XorHandler xorHandler = _cmd.getXorHandler();
        std::vector< std::vector<Arg*> > xorList = xorHandler.getXorList();
        basename(progName);

        std::cout << "<?xml version='1.0'?>" << std::endl;
        std::cout << "<!DOCTYPE refentry PUBLIC \"-//OASIS//DTD DocBook XML V4.2//EN\"" << std::endl;
        std::cout << "\t\"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd\">" << std::endl << std::endl;

        std::cout << "<refentry>" << std::endl;

        std::cout << "<refmeta>" << std::endl;
        std::cout << "<refentrytitle>" << progName << "</refentrytitle>" << std::endl;
        std::cout << "<manvolnum>1</manvolnum>" << std::endl;
        std::cout << "</refmeta>" << std::endl;

        std::cout << "<refnamediv>" << std::endl;
        std::cout << "<refname>" << progName << "</refname>" << std::endl;
        std::cout << "<refpurpose>" << _cmd.getMessage() << "</refpurpose>" << std::endl;
        std::cout << "</refnamediv>" << std::endl;

        std::cout << "<refsynopsisdiv>" << std::endl;
        std::cout << "<cmdsynopsis>" << std::endl;

        std::cout << "<command>" << progName << "</command>" << std::endl;

        // xor
        for ( int i = 0; (unsigned int)i < xorList.size(); i++ )
        {
                std::cout << "<group choice='req'>" << std::endl;
                for ( ArgVectorIterator it = xorList[i].begin(); 
                                                it != xorList[i].end(); it++ )
                        printShortArg((*it));

                std::cout << "</group>" << std::endl;
        }
        
        // rest of args
        for (ArgListIterator it = argList.begin(); it != argList.end(); it++)
                if ( !xorHandler.contains( (*it) ) )
                        printShortArg((*it));

        std::cout << "</cmdsynopsis>" << std::endl;
        std::cout << "</refsynopsisdiv>" << std::endl;

        std::cout << "<refsect1>" << std::endl;
        std::cout << "<title>Description</title>" << std::endl;
        std::cout << "<para>" << std::endl;
        std::cout << _cmd.getMessage() << std::endl; 
        std::cout << "</para>" << std::endl;
        std::cout << "</refsect1>" << std::endl;

        std::cout << "<refsect1>" << std::endl;
        std::cout << "<title>Options</title>" << std::endl;

        std::cout << "<variablelist>" << std::endl;
        
        for (ArgListIterator it = argList.begin(); it != argList.end(); it++)
                printLongArg((*it));

        std::cout << "</variablelist>" << std::endl;
        std::cout << "</refsect1>" << std::endl;

        std::cout << "<refsect1>" << std::endl;
        std::cout << "<title>Version</title>" << std::endl;
        std::cout << "<para>" << std::endl;
        std::cout << xversion << std::endl; 
        std::cout << "</para>" << std::endl;
        std::cout << "</refsect1>" << std::endl;
        
        std::cout << "</refentry>" << std::endl;

}

inline void DocBookOutput::failure( CmdLineInterface& _cmd,
                                    ArgException& e ) 
{ 
        static_cast<void>(_cmd); // unused
        std::cout << e.what() << std::endl;
        throw ExitException(1);
}

inline void DocBookOutput::substituteSpecialChars( std::string& s,
                                                                   char r,
                                                                                                   std::string& x )
{
        size_t p;
        while ( (p = s.find_first_of(r)) != std::string::npos )
        {
                s.erase(p,1);
                s.insert(p,x);
        }
}

inline void DocBookOutput::removeChar( std::string& s, char r)
{
        size_t p;
        while ( (p = s.find_first_of(r)) != std::string::npos )
        {
                s.erase(p,1);
        }
}

inline void DocBookOutput::basename( std::string& s )
{
        size_t p = s.find_last_of('/');
        if ( p != std::string::npos )
        {
                s.erase(0, p + 1);
        }
}

inline void DocBookOutput::printShortArg(Arg* a)
{
        std::string lt = "&lt;"; 
        std::string gt = "&gt;"; 

        std::string id = a->shortID();
        substituteSpecialChars(id,'<',lt);
        substituteSpecialChars(id,'>',gt);
        removeChar(id,'[');
        removeChar(id,']');
        
        std::string choice = "opt";
        if ( a->isRequired() )
                choice = "plain";

        std::cout << "<arg choice='" << choice << '\'';
        if ( a->acceptsMultipleValues() )
                std::cout << " rep='repeat'";


        std::cout << '>';
        if ( !a->getFlag().empty() )
                std::cout << a->flagStartChar() << a->getFlag();
        else
                std::cout << a->nameStartString() << a->getName();
        if ( a->isValueRequired() )
        {
                std::string arg = a->shortID();
                removeChar(arg,'[');
                removeChar(arg,']');
                removeChar(arg,'<');
                removeChar(arg,'>');
                arg.erase(0, arg.find_last_of(theDelimiter) + 1);
                std::cout << theDelimiter;
                std::cout << "<replaceable>" << arg << "</replaceable>";
        }
        std::cout << "</arg>" << std::endl;

}

inline void DocBookOutput::printLongArg(Arg* a)
{
        std::string lt = "&lt;"; 
        std::string gt = "&gt;"; 

        std::string desc = a->getDescription();
        substituteSpecialChars(desc,'<',lt);
        substituteSpecialChars(desc,'>',gt);

        std::cout << "<varlistentry>" << std::endl;

        if ( !a->getFlag().empty() )
        {
                std::cout << "<term>" << std::endl;
                std::cout << "<option>";
                std::cout << a->flagStartChar() << a->getFlag();
                std::cout << "</option>" << std::endl;
                std::cout << "</term>" << std::endl;
        }

        std::cout << "<term>" << std::endl;
        std::cout << "<option>";
        std::cout << a->nameStartString() << a->getName();
        if ( a->isValueRequired() )
        {
                std::string arg = a->shortID();
                removeChar(arg,'[');
                removeChar(arg,']');
                removeChar(arg,'<');
                removeChar(arg,'>');
                arg.erase(0, arg.find_last_of(theDelimiter) + 1);
                std::cout << theDelimiter;
                std::cout << "<replaceable>" << arg << "</replaceable>";
        }
        std::cout << "</option>" << std::endl;
        std::cout << "</term>" << std::endl;

        std::cout << "<listitem>" << std::endl;
        std::cout << "<para>" << std::endl;
        std::cout << desc << std::endl;
        std::cout << "</para>" << std::endl;
        std::cout << "</listitem>" << std::endl;

        std::cout << "</varlistentry>" << std::endl;
}

} //namespace TCLAP
#endif