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pruittlr
Silver Member
posted
I'm using WF 5.33 on Windows 2000.

I have a -READ within a loop (-REPEAT). I need the repeat to loop until the end of file on the read. Is there a way to loop until &IORETURN NE 0? I haven't been able to make that work, keep getting an error. Got any ideas? Thanks.

Raelene
 
Posts: 31 | Location: Oklahoma City, OK | Registered: September 11, 2003Report This Post
susannah
Expert
posted Hide Post
make sure you -READ filename NOCLOSE
otherwise that sucker just reads the same record over and over and...
then &IORETURN will at some point NE 0
 
Posts: 3811 | Location: Manhattan | Registered: October 28, 2003Report This Post
pruittlr
Silver Member
posted Hide Post
I have the NOCLOSE on the read. The -REPEAT requires number of times, or a while condition, or a from-to value. I just want it to repeat until eof.
 
Posts: 31 | Location: Oklahoma City, OK | Registered: September 11, 2003Report This Post
Tony A
Expert
posted Hide Post
Try this syntax which reads ahead (age old data processing requirement Smiler ) and set &IORETURN immediately after your -READ thereby trapping and EOF situation.

TABLE FILE CAR
PRINT MODEL
ON TABLE HOLD AS CALENDAR FORMAT ALPHA
END
-RUN
-* Read ahead to prime the &IORETURN
-READ CALENDAR, NOCLOSE &Model
-REPEAT Read_It WHILE (&IORETURN EQ 0)
-TYPE Model is &Model
-READ CALENDAR, NOCLOSE &Model
-Read_It
END
 
Posts: 5694 | Location: United Kingdom | Registered: April 08, 2004Report This Post
Håkan
Guru
posted Hide Post
Try this:

APP FI TEST lidholh/test.txt
-RUN
-*
-WRITE TEST Record 1
-WRITE TEST Record 2
-WRITE TEST Record 3
-WRITE TEST Record 4
-WRITE TEST Record 5
-RUN
-*
-SET &IORETURN = 0;
-REPEAT :end_read WHILE &IORETURN EQ 0;
-READ TEST,&LINE
-IF &IORETURN NE 0 GOTO :end_read;
-TYPE &IORETURN &LINE
-:end_read

It will give you the following output:

0 Record 1
0 Record 2
0 Record 3
0 Record 4
0 Record 5
 
Posts: 319 | Location: Stockholm, Sweden | Registered: February 04, 2004Report This Post
pruittlr
Silver Member
posted Hide Post
Thanks, H Lidholm, it worked. My syntax was similar, guess I was missing something.
 
Posts: 31 | Location: Oklahoma City, OK | Registered: September 11, 2003Report This Post
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