Perl::Critic::Policy::ValuesAndExpressions::RequireQuotedHeredocTerminator(3pm)

Perl::Critic::Policy::ValuesAndExpressions::RequireQuotedHeredocTerminator3pm

Write " print <<'the_end' " or " print <<"the_end" ".

Affiliation

This Policy is part of the core Perl::Critic distribution.

Overview

Putting single or double-quotes around your HEREDOC terminator make it obvious to the reader whether the content is going to be interpolated or not.

    print <<END_MESSAGE;    #not ok
    Hello World
    END_MESSAGE
    print <<'END_MESSAGE';  #ok
    Hello World
    END_MESSAGE
    print <<"END_MESSAGE";  #ok
    $greeting
    END_MESSAGE

Configuration

This Policy is not configurable except for the standard options.

Releases

10 releases since Debian 5.0 (Lenny); the text changed 9 times.

  1. 5.0
  2. 6.0
  3. 7
  4. 8
  5. 9
  6. 10
  7. 11
  8. 12
  9. 13
  10. Arch

Author

Jeffrey Ryan Thalhammer <[email protected]>

From perl-perl-critic 1.156-3 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.