HbookName.h

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// $Id: HbookName.h,v 1.2 2006/12/10 19:11:56 leggett Exp $
// ============================================================================
#ifndef GAUDIALG_HBOOKNAME_H 
#define GAUDIALG_HBOOKNAME_H 1
// Include files
#include <string>
#include <algorithm>

namespace 
{
  inline std::string dirHbookName 
  ( const std::string& addr        , 
    const int          maxLen = 16 )
  {
    // ignore empty locations 
    if( addr.empty() ) { return std::string(); }
    //
    std::string old( addr );
    // remove long names
    if( 0 < maxLen &&  maxLen < (int) old.size() ) 
    { 
      std::string::iterator p1,p2;
      p1 = old.begin();
      const char sep('/');
      while( old.end() != p1 )
      {
        p1 = 
          std::find_if( p1        , 
                        old.end() , 
                        std::bind2nd(std::not_equal_to<char>(),sep));
        p2 = std::find( p1 , old.end() , sep ) ;
        if( ( p2 - p1 ) <= (int) maxLen  ) { p1 = p2 ; continue ; }
        old.insert( p1 + maxLen , sep ) ;  
        p1 = old.begin() ; 
      }
    }
    return old;
  }
  
  inline std::string histoHbookName 
  ( const std::string& addr       , 
    const int          maxLen = 8 )
  {
    // ignore empty locations 
    if( addr.empty() ) { return std::string(); }
    //
    std::string old( addr );
    { // make valid histogram ID (integer)  
      std::string::size_type pos 
        = old.find_last_of( '/' );
      if      ( std::string::npos == pos ) { old += "/1" ; }
      else if ( old.size() - 1    == pos ) { old += '1'  ; }
      else
      {
        const int id = 
          atoi( std::string( old , pos + 1 , std::string::npos ).c_str() );
        if( 0 == id ) { old+="/1"; }
      }
    }
    // remove long names
    if( 0 < maxLen &&  maxLen < (int) old.size() ) 
    { 
      std::string::iterator p1,p2;
      p1 = old.begin();
      const char sep('/');
      while( old.end() != p1 )
      {
        p1 = 
          std::find_if( p1        , 
                        old.end() , 
                        std::bind2nd(std::not_equal_to<char>(),sep));
        p2 = std::find( p1 , old.end() , sep ) ;
        if( ( p2 - p1 ) <= (int) maxLen  ) { p1 = p2 ; continue ; }
        old.insert( p1 + maxLen , sep ) ;  
        p1 = old.begin() ; 
      }
    }
    //
    return old;
  }
  
} // end of anynous namespace 

// ============================================================================
// The END 
// ============================================================================
#endif // GAUDIALG_HBOOKNAME_H
// ============================================================================