* lisp/progmodes/cperl-mode.el (cperl-style-alist)
(cperl-set-style): Add indentation style recommended by Damian Conway's
book "Perl Best Practices".
* test/lisp/progmodes/cperl-mode-tests.el
(cperl-mode-test-indent-styles): Add a test to verify indentation
and unraveling of conditionals (bug#43457).
* lisp/progmodes/cperl-mode.el (cperl-indent-exp): Fix (Bug#10483)
Perl expressions (e.g. function calls) ending in ")" without
statement terminator on the same line no longer loop endlessly.
* lisp/progmodes/cperl-mode.el (cperl-forward-group-in-re): Make
sure that an error is reported back to the caller (Bug#16368).
* test/lisp/progmodes/cperl-mode-tests.el (cperl-mode-test-bug-16368):
Tests for balanced (no error) and unbalanced (caught exception)
cases of `cperl-forward-group-in-re'.
* test/lisp/progmodes/cperl-mode-tests.el: Adjust for `perl-mode`.
(cperl-test-ppss): Rename from `cperl-test-face` and change return value.
(cperl-mode-test-bug-42168): Test the `syntax-ppss` state rather than
the font-lock faces, so it works for both `perl-mode` and `cperl-mode`.
* lisp/progmodes/cperl-mode.el (cperl-find-pods-heres):
Recognize {$a++ / $b} correctly as division. (Bug#42168)
* test/lisp/progmodes/cperl-mode-tests.el: New file with test
verifying the fix.
