Variable for file name in program

Chris wrote in RPG400-L:

>I need to have a cl program pass a 
>variable to either a rpg or cl program.
>
>This variable is the file name that 
>the program needs to read from.

I think we covered this ground before (a generic read has little practical
application) but I thought I'd post some ReXX code that does a generic
open/read.  This displays records on the screen and has no error handling,
but it answers the original poster's question.  I am posting it here because
a) It isn't RPG
b) There isn't that much information about ReXX

/* Open a generic file                                               */
/* To use, put in QREXSRC, member READF and run the following CL:    */
/* STRREXPRC SRCMBR(READF) PARM('READF QREXSRC *LIBL')               */
                                                                       
/* Input arguments                                                   */
PARSE ARG frommbr fromfile fromlib                                     
rcdCount = 0                                                           
rcdLimit = 50                                                          
                                                                       
   /* Override STDIN to the DB2 file                                 */
   'OVRDBF FILE(STDIN) TOFILE(&FROMLIB/&FROMFILE) MBR(&FROMMBR)'       
                                                                       
   /* Read a line from the file                                      */
Read:                                                                  
   PARSE PULL dtaInput                                                 
   rcdCount = rcdCount + 1                                             
                                                                       
   /* Record limit                                                   */
   IF rcdCount > rcdLimit THEN DO                                      
     SAY 'Record limit ('rcdLimit') reached'                           
     SIGNAL Exit                                                       
   END                                                                 
                                                                       
   /* record is NULL at EOF                                          */ 
   IF dtaInput <> '' THEN DO                                            
     SAY dtaInput                                                       
     SIGNAL Read                                                        
   END                                                                  
                                                                        
   Say 'EOF reached'                                                    
                                                                        
Exit:                                                                   
                                                                        
RETURN                                                                  

Buck Calabro
Aptis; Albany, NY
"We are what we repeatedly do.
 Excellence, then, is not an act, but a habit." --Aristotle


Billing Concepts Corp., a NASDAQ Listed Company, Symbol: BILL
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