comp.lang.idl-pvwave archive: archive » Suppress return with readf ?

Home » Public Forums » archive » Suppress return with readf ?

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Suppress return with readf ? [message #13409]

Wed, 04 November 1998 00:00

John Kwiatkowski
Messages: 4
Registered: May 1998

Junior Member

I have an ASCII data set that is giving me problems. I need to suppress
the return when using readf since I only want to read in part of the
line. Depending on the value of one of the fields there may be more
info to read on that line. Anyone know how to stop readf from moving
to the next line?

Here is an example of 2 lines in the data file
0 58 2 94 2 0 0 0 0
0 57 7 85 44 0 0 0 2 0 0 0 2 0 0 0

The first line has the 9 fields that are on every line. Depending on the
value of the 9th field there may be 7 more fields to read on that line.

psuedo code:
A ; structure with required 9 fields
B ; structure with optional 7 fields

readf, unit, A
if (A.field9 neq 0) then
readf, unit B

After the first read the file pointer gets placed at the next line in
the file. How do I suppress this?

Thanks for any help
John K.

Report message to a moderator

[Message index]

		Suppress return with readf ? By: John Kwiatkowski on Wed, 04 November 1998 00:00
		Re: Suppress return with readf ? By: R.Bauer on Tue, 24 November 1998 00:00

Previous Topic:	TV/postscript problem
Next Topic:	Dumb Dumb Question

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Fri Oct 10 09:30:55 PDT 2025

Total time taken to generate the page: 0.64250 seconds