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Programming >> Language extensions >> Two things I'd like
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Two things I'd like
Post by Alincon on Feb 13th, 2015, 4:42pm

LB4 can input several values, such as a CDF:

Code:
input #file, a$,b$,c$...


How about a counterpart to create a CDF?

Code:
print() #file, a$,b$,c$...


where the parens enclose the delimiter character; perhaps a comma would be the default.

The second thing would be some way of denoting fields in a sequential file. Could the Field statement from random files be used somehow? Could a sequential record be read into a structure?
Harking back to the COBOL I used to use:

01 NamAdrsRecord.
05 nam$
10 last$ len 10
10 first$ len 10
05 adrs$
10 city$ len 20
10 state$ len 2
10 zip$
15 zip5 len5
15 zip4 len4

The other COBOL feature that comes to mind is 'redefines'

I know most of this is unrealistic, but for a wish list...

r.m.
Re: Two things I'd like
Post by Richard Russell on Feb 13th, 2015, 5:44pm

on Feb 13th, 2015, 4:42pm, Alincon wrote:
How about a counterpart to create a CDF?
Code:
print() #file, a$,b$,c$...

What's the advantage compared with doing:

Code:
    print #file, a$;",";b$;",";c$...

which achieves the same effect without any extensions to the language?

Quote:
The second thing would be some way of denoting fields in a sequential file. Could the Field statement from random files be used somehow?

In LBB (unlike LB) you can open a file for INPUT or OUTPUT and still use the FIELD and PUT/GET statements just like you would if the file was opened as RANDOM. So, apart from the overhead of having to increment the record number each time, a sequential file in which all the records are the same length is effectively the same thing as a random file.

Does that allow you to do what you were hoping for?

Richard.