---
name: "Perl::Critic::Policy::Documentation::ProhibitDuplicateSeeAlso"
section: "3pm"
platform: "linux"
package: "libperl-critic-pulp-perl"
version: "99-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/Perl::Critic::Policy::Documentation::ProhibitDuplicateSeeAlso"
---

# Perl::Critic::Policy::Documentation::ProhibitDuplicateSeeAlso(3pm)

don't duplicate L\<\> links in SEE ALSO

## NAME

Perl::Critic::Policy::Documentation::ProhibitDuplicateSeeAlso - don't duplicate L\<\> links in SEE ALSO

## DESCRIPTION

This policy is part of the `"Perl::Critic::Pulp"` add-on.  It asks you not to duplicate `"L<Foo>"` links in a SEE ALSO section.

```
    =head1 SEE ALSO
    L<Foo::Bar>
    L<Foo::Bar>    # bad
```

The idea is that for readability a given cross-reference should be linked just once and a duplicate is likely a leftover from too much cut-and-paste etc.  This is minor matter so this policy is low severity and under the `"cosmetic"` theme (see "POLICY THEMES" in Perl::Critic).

A module can appear more than once in a SEE ALSO, but only `"L<>"` linked once.  Anything else should be `"C<>"` markup or plain text.

```
    L<Foo::One>, L<Foo::Two>
    (C<Foo::Two> runs faster)     # ok
```

Links to different parts of a target POD are allowed,

```
    L<perlfunc/alarm>,
    L<perlfunc/kill>     # ok
```

### Disabling

If you don't care about this then you can always disable `"ProhibitDuplicateSeeAlso"` from your *.perlcriticrc* file in the usual way (see "CONFIGURATION" in Perl::Critic),

```
    [-Documentation::ProhibitDuplicateSeeAlso]
```

## SEE ALSO

Perl::Critic::Pulp, Perl::Critic

Perl::Critic::Policy::Documentation::ProhibitAdjacentLinks, Perl::Critic::Policy::Documentation::ProhibitLinkToSelf

## HOME PAGE

http://user42.tuxfamily.org/perl-critic-pulp/index.html

## COPYRIGHT

Copyright 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019, 2021 Kevin Ryde

Perl-Critic-Pulp is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version.

Perl-Critic-Pulp is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with Perl-Critic-Pulp.  If not, see \<http://www.gnu.org/licenses/\>.