/**CFile****************************************************************

  FileName    [ioaUtil.c]

  SystemName  [ABC: Logic synthesis and verification system.]

  PackageName [Command processing package.]

  Synopsis    [Procedures to read binary AIGER format developed by
  Armin Biere, Johannes Kepler University (http://fmv.jku.at/)]

  Author      [Alan Mishchenko]
  
  Affiliation [UC Berkeley]

  Date        [Ver. 1.0. Started - December 16, 2006.]

  Revision    [$Id: ioaUtil.c,v 1.00 2006/12/16 00:00:00 alanmi Exp $]

***********************************************************************/

#include "ioa.h"

ABC_NAMESPACE_IMPL_START


////////////////////////////////////////////////////////////////////////
///                        DECLARATIONS                              ///
////////////////////////////////////////////////////////////////////////

////////////////////////////////////////////////////////////////////////
///                     FUNCTION DEFINITIONS                         ///
////////////////////////////////////////////////////////////////////////

/**Function*************************************************************

  Synopsis    [Returns the file size.]

  Description [The file should be closed.]

  SideEffects []

  SeeAlso     []

***********************************************************************/
int Ioa_FileSize( char * pFileName )
{
    FILE * pFile;
    int nFileSize;
    pFile = fopen( pFileName, "r" );
    if ( pFile == NULL )
    {
        printf( "Ioa_FileSize(): The file is unavailable (absent or open).\n" );
        return 0;
    }
    fseek( pFile, 0, SEEK_END );  
    nFileSize = ftell( pFile ); 
    fclose( pFile );
    return nFileSize;
}

/**Function*************************************************************

  Synopsis    []

  Description []

  SideEffects []

  SeeAlso     []

***********************************************************************/
char * Ioa_FileNameGeneric( char * FileName )
{
    char * pDot, * pRes;
    pRes = Abc_UtilStrsav( FileName );
    if ( (pDot = strrchr( pRes, '.' )) )
        *pDot = 0;
    return pRes;
}

/**Function*************************************************************

  Synopsis    [Returns the composite name of the file.]

  Description []

  SideEffects []

  SeeAlso     []

***********************************************************************/
char * Ioa_FileNameGenericAppend( char * pBase, char * pSuffix )
{
    static char Buffer[1000];
    char * pDot;
    if ( pBase == NULL )
    {
        strcpy( Buffer, pSuffix );
        return Buffer;
    }
    strcpy( Buffer, pBase );
    if ( (pDot = strrchr( Buffer, '.' )) )
        *pDot = 0;
    strcat( Buffer, pSuffix );
    // find the last occurrance of slash
    for ( pDot = Buffer + strlen(Buffer) - 1; pDot >= Buffer; pDot-- )    
        if (!((*pDot >= '0' && *pDot <= '9') ||
              (*pDot >= 'a' && *pDot <= 'z') ||
              (*pDot >= 'A' && *pDot <= 'Z') || 
               *pDot == '_' || *pDot == '.') )
               break;
    return pDot + 1;
}

/**Function*************************************************************

  Synopsis    [Returns the time stamp.]

  Description [The file should be closed.]

  SideEffects []

  SeeAlso     []

***********************************************************************/
char * Ioa_TimeStamp()
{
    static char Buffer[100];
    char * TimeStamp;
    time_t ltime;
    // get the current time
    time( &ltime );
    TimeStamp = asctime( localtime( &ltime ) );
    TimeStamp[ strlen(TimeStamp) - 1 ] = 0;
    strcpy( Buffer, TimeStamp );
    return Buffer;
}

////////////////////////////////////////////////////////////////////////
///                       END OF FILE                                ///
////////////////////////////////////////////////////////////////////////


ABC_NAMESPACE_IMPL_END