cperl-bad-style-regexp
cperl-bad-style-regexp is a variable defined in `cperl-mode.el
'.Its value is
"[^-\n <>=+!.&|(*/'`\"#^][-=+<>!|&^]\\|[-<>=+^&|]+[^- \n=+<>~]"
Documentation:
Finds places such that insertion of a whitespace may help a lot.
cperl-mode.el
'.
"[^-\n <>=+!.&|(*/'`\"#^][-=+<>!|&^]\\|[-<>=+^&|]+[^- \n=+<>~]"