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I have a module which uses an external library. I would like to catch all STDERR from calls to subs which are in the external library into a string so I can check it later.

Here is a minimal example. This prints "manual error" but does not contain the STDERR from the Text::BibTeX sub. Without the STDERR redirection, the Text::BibTeX sub error is displayed on terminal STDERR as normal.

#!/bin/perl use Text::BibTeX; my $stderr; my $bib_entry = <<'END'; @BOOK{test1, AUTHOR = {Arthur Author}, TITLE = {Arranging Arguments},, YEAR = {1935} } END close STDERR; open STDERR, '>', \$stderr; print STDERR "manual error\n"; my $entry = new Text::BibTeX::Entry $bib_entry; print $stderr; exit 0;

In reply to STDERR going to string by philkime

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