Change 13402 by jhi@alpha on 2001/12/01 15:52:13
Subject: Re: [PATCH] [ID 20011130.166] "in memory" file handles via scalas not
documented in perldoc -f open
From: Tels <[EMAIL PROTECTED]>
Date: Sat, 01 Dec 2001 10:29:11 +0100 (CET)
Message-Id: <[EMAIL PROTECTED]>
Affected files ...
.... //depot/perl/pod/perlfunc.pod#280 edit
Differences ...
==== //depot/perl/pod/perlfunc.pod#280 (text) ====
Index: perl/pod/perlfunc.pod
--- perl/pod/perlfunc.pod.~1~ Sat Dec 1 09:00:05 2001
+++ perl/pod/perlfunc.pod Sat Dec 1 09:00:05 2001
@@ -2666,6 +2666,8 @@
=item open FILEHANDLE,MODE,EXPR,LIST
+=item open FILEHANDLE,MODE,REFERENCE
+
=item open FILEHANDLE
Opens the file whose filename is given by EXPR, and associates it with
@@ -2778,6 +2780,10 @@
opens a filehandle to an anonymous temporary file.
+File handles can be opened to "in memory" files held in Perl scalars via:
+
+ open($fh,'>', \$variable) || ..
+
Examples:
$ARTICLE = 100;
@@ -2802,6 +2808,11 @@
open(EXTRACT, "|sort >/tmp/Tmp$$") # $$ is our process id
or die "Can't start sort: $!";
+ # in memory files
+ open(MEMORY,'>', \$var)
+ or die "Can't open memory file: $!";
+ print MEMORY "foo!\n"; # output will end up in $var
+
# process argument list of files along with any includes
foreach $file (@ARGV) {
End of Patch.
