Perl::Critic::Policy::Documentation::ProhibitVerbatimMarkup - unexpanded C<> etc markup in POD verbatim paras
This policy is part of the Perl::Critic::Pulp add-on. It reports POD verbatim paragraphs which contain markup like B<> or C<>. That markup will appear literally in the formatted output where you may have meant fontification.
=head1 SOME THING
Paragraph of text introducing an example,
# call the C<foo> function # bad
This is purely cosmetic so this policy is low severity and under the "cosmetic" theme (see "POLICY THEMES" in Perl::Critic). Normally it means one of two things,
You want markup -- it should be a plain paragraph not a verbatim indented one. An =over can be used for indentation if desired.
You want verbatim -- replace the markup with an ascii approximation like func() or perhaps *bold* or _underline_.
Don't forget that a verbatim paragraph extends to the next blank line and includes unindented lines until then too (see "Pod Definitions" in perlpodspec). If you forget the blank line then the verbatimness continues
And this was I<meant> to be plain text. # bad
The check for markup is unsophisticated. Any of the POD specified "I<" "C<" etc is taken to be markup, plus "J<" of Pod::MultiLang.
I< # bad
B< # bad
C< # bad
L< # bad
E< # bad
F< # bad
S< # bad
X< # bad
Z< # bad
J< # bad, for Pod::MultiLang
It's possible a < might be something mathematical like "X<Y", but in practice spaces "X < Y" or lower case letters are more common (and are ok).
DB<1> style sample Perl debugger output is exempted (see perldebug). It's uncommon, but not likely to have intended B<> bold.
DB<123> dump b # ok
If a verbatim paragraph is showing how to write POD markup then you can add an =for to tell ProhibitVerbatimMarkup to allow it. This happens most often in documentation for modules which themselves operate on POD markup.
=for ProhibitVerbatimMarkup allow next
blah blah E<gt> etc
=for ProhibitVerbatimMarkup allow next 2
Two verbatims of C<code>
or B<bold> etc
The usual no critic works too,
## no critic (ProhibitVerbatimMarkup)
But the annotation must be before any __END__ token, and if the POD is after an __END__ token then Perl::Critic 1.112 up is required. An =for has the advantage of being together with the exception.
As always if you don't care at all about this at all then disable ProhibitVerbatimMarkup from your .perlcriticrc in the usual way (see "CONFIGURATION" in Perl::Critic),
Perl::Critic::Pulp, Perl::Critic, Perl::Critic::Policy::Documentation::ProhibitBadAproposMarkup, Perl::Critic::Policy::Documentation::RequireEndBeforeLastPod
Copyright 2010, 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/>.
To install Perl::Critic::Pulp, copy and paste the appropriate command in to your terminal.
perl -MCPAN -e shell
For more information on module installation, please visit the detailed CPAN module installation guide.