Re: opendir a directory abstraction?


There's more than one way to do things
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Re: opendir a directory abstraction?

by jcb (Parson)

on Feb 14, 2021 at 03:24 UTC ( [id://11128353]=note: print w/replies, xml )

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in reply to opendir a directory abstraction?

But is there a way to do it with opendir ,too?

No; the ability to open a variable as a file is derived from PerlIO (and is only available if your perl was built with PerlIO, which has been default since 5.8) and PerlIO only handles byte-streams and not directory-streams. On a related note, you cannot tie directory handles either when I last checked.

$ perl -e '$str="foo";' \
       -e 'open FH, "<", \$str or die "open: $!";' \
       -e 'print "var:   ",join(":",PerlIO::get_layers(FH)),"\n";' \
       -e 'print "STDIN: ",join(":",PerlIO::get_layers(STDIN)),"\n";'
var:   scalar
STDIN: unix:perlio