CommandLine.h

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//$Id
/*
A C++ commandline parser.
*/
/* ****************************************************************************
*
*  CommandLine.h
*  Created by John F. Hubbard, on Fri Aug 11 2000, 16:04:24 PST
*
*  Copyright (c) 2000, ATD Azad Technology Development Corporation
*
*            The Reliable Software Outsource Resource
*        You hire us, we do it for you, and we do it right.
*
*                       www.azadtech.com
*
*  Permission is granted to use this code without restriction,
*  as long as this copyright notice appears in all source files.
*
*  File Contents: Interface and documentation of the CommandLine class.
*
* %version: 2.30 %
* %date_modified: Thu Nov 02 16:10:20 2000 %
* %created_by: jhubbard %
*
*************************************************************************** */
 
#ifndef POOL_COMMANDLINE_H
#define POOL_COMMANDLINE_H
#ifndef POOL_STDSTRING_H
#include <string>
#define POOL_STDSTRING_H
#endif
#ifndef POOL_STDMAP_H
#include <map>
#define POOL_STDMAP_H
#endif
#include <sstream>
 
namespace pool
{
  class CommandLine
  {
  public:
    typedef std::map<std::string, std::string> ARGMAPTYPE;
    CommandLine(int argc, char* argv[]);
    CommandLine(int argc, char* argv[], const std::string& strFileName);
    CommandLine(const std::string& strFileName);
 
    virtual ~CommandLine();
    std::string GetByName( const std::string& strArgName ) const;
    inline bool Exists( const std::string& strArgName ) const;
    inline int Count() const;
    virtual std::string Usage();
    void DumpDiagnostics() const;
    inline std::string GetProgramName() const;
    virtual void        CheckOptions(const char* opts[]);
    
 private:
    inline bool         IsParamName(const std::string& strValue) const;
    inline std::string  GetParamName(const std::string& strWord) const;
    void                ParseCommandLine(int argc, char* argv[]);
    void                ParseSettings(const std::string& strInput);
    std::string         LoadSettingsFile(const std::string& strFileName);
    void                TranslateQuotes(std::istringstream& ist, std::string& strWord);
    
    int             mnParameterCount;
    ARGMAPTYPE      mArgMap;
    std::string     mstrProgramName;
    
    // No copying or assignment is supported, at this point:
    CommandLine(const CommandLine&);
    CommandLine& operator=(const CommandLine&);
  };
 
   
  //inline functions
  inline int CommandLine::Count() const
  {
    return mnParameterCount;
  }
 
  inline bool CommandLine::IsParamName(const std::string& strWord) const
  {
    return ( (strWord.length()) > 1 && ( strWord[0] == '-' ) );
  }
 
  inline std::string CommandLine::GetParamName(const std::string& strWord) const
  {
    if (IsParamName(strWord) )
    {
      return strWord.substr(1, strWord.length() - 1);
    }
    return strWord;
  }
 
  inline bool CommandLine::Exists( const std::string& strArgName ) const
  {
    return( mArgMap.find(strArgName) != mArgMap.end() );
  }
 
  inline std::string CommandLine::GetProgramName() const
  {
    return mstrProgramName;
  }
 
} //ns pool 
#endif