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On Thu, 24 Mar 2005 16:33:20 -0600, Bob Cozzi <cozzi@xxxxxxxxx> wrote:
> RPG IV is a bit more complicated when writing CSV files...
>     C                   eval      hIFS = csvOpen('/mydir/filename.csv':
>     C                                             'APLIB/CUSTMAST')
> 
>     C                   Read      CUSTMAST
>     C                   return    csvWrite(hFile:CUSTDATA)
> 
> Perhaps not as clean a C++ but just as easy.

now that is proof that beauty IS in the eye of the beholder!

in C++ I added an operator[ ] function to the CsvString class.

std::string sName ;
CsvString line ;
sName = line[3] ;  // extract the 4th value in the string.

I never tried it but you can probably overload operator[ ] in a
database file class to perform a chain to a file:
  PayrollMasterByNumber  master ;
  PayrollRecord record ;
  
  master << record ; // add a record to the master file
  record = master[ EmployeeNumber ] ;  // chain to master file by key

you can get real wild with all of this and have a const and non const
version of the operator[ ] member function of the
PayrollMasterByNumber class. When used on the left side of the
expression, your code calls the non const version of the function and
updates the record.  When used on the right side, you call the const
version and read the record.

// update the record with key EmployeeNumber.
  master[ EmployeeNumber ] = record ;

// read the record by key EmployeeNumber
  record = master[ EmployeeNumber ] ;

-Steve

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