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Re: Using IDL from a perl script [message #56418 is a reply to message #56407]

Sat, 20 October 2007 16:16

jkj
Messages: 48
Registered: April 2007

Member

On Oct 19, 1:02 pm, James Everton <james.ever...@gmail.com> wrote:
> Hi everybody,
>
> I'm developing some web scripts in perl that interact with a database
> through various pre-written IDL procedures here at my work. The
> problem I'm having is getting arguments passed between the two.
> Passing from the perl into the IDL code is easy enough because I'm
> using the open( ) procedure and simply writing the strings as a block:
>

I've done this a bunch and found it to be very useful... here's a bit
more of what I find works:

use IPC::Open2;

$progName = "idl";
open2(READIDL, WRITEIDL, $progName) or die "Could not begin \"$progName
\"\n";

# Then you can cause IDL to execute commands like this:
print WRITEIDL "value = 13\n";

# I find that output coming back from IDL is cluttered, so before
# asking IDL to return a value I ask it to spit out "junk":
print WRITEIDL "print, \"junk\"\n";
while(!(<READIDL> =~ /junk/)){
}

# Now I can get the value I want back asking IDL to output it:
print WRITEIDL "print, value\n";
$value = <READIDL>;
chomp($value);

...hope that helps,
-Kevin

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[Message index]

		Re: Using IDL from a perl script By: James Everton on Mon, 22 October 2007 13:05
		Re: Using IDL from a perl script By: jkj on Sat, 20 October 2007 16:16
		Re: Using IDL from a perl script By: A. Sinan Unur on Fri, 19 October 2007 11:37
		Re: Using IDL from a perl script By: Michele Dondi on Fri, 19 October 2007 11:33

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