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cperl-mode.el: Add support for new Perl syntax in Perl 5.36 and 5.38

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Perl 5.38 was released on 2023-07-03.  This patch supports the new features
for 5.36 and 5.38 for font-lock, indentation, and imenu index creation.

* lisp/progmodes/cperl-mode.el (cperl-praise): Mention classes.
(defconst): Fix typo in docstring of cperl--single-attribute-rx.
Add "class" to cperl--package-rx, and adjust its docstring.
New rx sequence cperl--class-for-imenu-rx to capture classes,
use this in cperl--imenu-entries-rx.
Add "method" to cperl--sub-name-for-imenu-rx.
Add "class" to cperl--block-declaration-rx.
(cperl-sub-keywords): Add "method".
(cperl-mode): Add "ADJUST" to defun-prompt-regexp.
(cperl-after-block-p): Add new keywords for Perl 5.36 and 5.38.
(cperl-indent-exp): Add "field" to expression starters.
(cperl-imenu--create-perl-index): Rename variables refering to
"package", because they also contain classes.
(cperl-init-faces): Add new keywords for Perl 5.36 and 5.38.
(cperl-find-tags): Add support for "class".
(cperl-short-docs): Add new keywords for Perl 5.36 and 5.38.
(cperl-indent-exp): Add new keywords for Perl 5.36 and 5.38.

* test/lisp/progmodes/cperl-mode-tests.el
(cperl-test-fontify-class): New test for fontification of class
elements.
(cperl-test-imenu-index): Add tests for (nested) class
definitions.

* test/lisp/progmodes/cperl-mode-resources/cperl-indents.erts:
Add test cases for try/catch/finally, defer, class, method

* test/lisp/progmodes/cperl-mode-resources/perl-class.pl: New
resource for fontification tests of class elements.

* test/lisp/progmodes/cperl-mode-resources/grammar.pl: Add some
classes to the test resource.
This commit is contained in:
Harald Jörg 2023-07-03 22:55:19 +02:00
parent 32b092c142
commit 766784f186
5 changed files with 246 additions and 61 deletions
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25
test/lisp/progmodes/cperl-mode-resources/grammar.pl
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@ -169,4 +169,29 @@ sub erdős_number {
}
}
=head1 And now, for something completely different
Perl 5.38 supports classes with the same scope weirdness as packages.
As long as this is experimental, CPAN tools don't play well with this,
so some weird constructs are recommended to authors of CPAN modules.
=cut
package Class::Class;
our $VERSION = 0.01;
class Class::Class 0.01 {
method init ($with,$signature) {
...;
}
class Class::Inner :isa(Class::Class);
# This class comes without a block, so takes over until the rest
# of the containing block.
method init_again (@with_parameters) {
...;
}
}
1;