perl_version_introduced
Experimentation with weird delimiters shows that they did not actually work until Perl 5.8.3, so we return '5.008003' for such delimiters.
perl_version_removed
Perl 5.29.0 made fatal the use of non-standalone graphemes as string delimiters. Because non-characters and permanently unassigned code points are still allowed per perldeprecation, I take this to mean characters that match /\p{Mark}/ (i.e. combining diacritical marks). But this regular expression does not compile under Perl 5.6.
So:
This method returns '5.029' for such delimiters provided the requisite regular expression compiles. Otherwise it return undef.
NAME
PPIx::QuoteLike::Token::Delimiter - Represent a string delimiter
SYNOPSIS
This class should not be instantiated by the user. See below for public methods.
INHERITANCE
PPIx::QuoteLike::Token::Delimiter is a PPIx::QuoteLike::Token.
PPIx::QuoteLike::Token::Delimiter has no descendants.
DESCRIPTION
This token represents the delimiters of the string.
METHODS
This class supports no public methods in addition to those of its superclass.
SEE ALSO
SUPPORT
Support is by the author. Please file bug reports at https://github.com/trwyant/perl-PPIx-QuoteLike/issues, or in electronic mail to the author.
AUTHOR
Thomas R. Wyant, III wyant at cpan dot org
COPYRIGHT AND LICENSE
Copyright (C) 2016-2021 by Thomas R. Wyant, III
This program is free software; you can redistribute it and/or modify it under the same terms as Perl 5.10.0. For more details, see the full text of the licenses in the directory LICENSES.
This program 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.