Puzzling URI::Escape problem

slugger415 has asked for the wisdom of the Perl Monks concerning the following question:

Hello dear monks, a user of a script I've written that uses the URI::Escape module keeps getting an error:

Undefined subroutine &URI::Escape::uri_escape_utf8 called at myscript.pl line 375.

I cannot duplicate this error on my machine. I use it thusly:

use URI::Escape;
## lots of other stuff ##
$booktitle = URI::Escape::uri_escape_utf8($booktitle);
[download]

I'd also used it like so, without the prefix:

$booktitle = uri_escape_utf8($booktitle);
[download]

Someone else reported a similar error with that syntax, and it was fixed when I added the URI::Escape prefix to the call.

We're both running ActivePerl, he 5.8 and I 5.12, does that make a difference? Is there something I'm missing?

thanks very much -- Scott

Comment on Puzzling URI::Escape problem Select or Download Code

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Re: Puzzling URI::Escape problem by tobyink (Canon) on Apr 02, 2012 at 22:15 UTC
Very old version of URI::Escape? `uri_escape_utf8` has been exported by default since version 1.36. It's easy enough to explicitly request it to be exported: `use URI::Escape qw(uri_escape uri_escape_utf8);` [download] `perl -E'sub Monkey::do{say$_,for@_,do{($monkey=[caller(0)]->[3])=~s{::}{ }and$monkey}}"Monkey say"->Monkey::do'`	[reply] [d/l] [select]
Re^2: Puzzling URI::Escape problem by Anonymous Monk on Apr 02, 2012 at 23:52 UTC
Considering Perl 5.8 is ancient, the version of URI installed on that might not even have uri_escape_utf8. It was added in URI 1.31. You can explicitly require minimum module versions like so: `use URI 1.36;`	[reply] [d/l]
Re^2: Puzzling URI::Escape problem by slugger415 (Monk) on Apr 03, 2012 at 18:29 UTC
Yes it looks like the ancient Perl was the culprit. Thanks for the quick responses!	[reply]
Re^3: Puzzling URI::Escape problem by Anonymous Monk on Apr 03, 2012 at 21:47 UTC
Yes it looks like the ancient Perl was the culprit. Thanks for the quick responses! :) Considering URI doesn't come with Perl, its available on CPAN, the ancient version of URI was the culprit	[reply]