/usr/share/perl5/PPIx/Regexp/ is in libppix-regexp-perl 0.055-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/perl5/PPIx/Regexp/Constant.pm
/usr/share/perl5/PPIx/Regexp/Dumper.pm
/usr/share/perl5/PPIx/Regexp/Element.pm
/usr/share/perl5/PPIx/Regexp/Lexer.pm
/usr/share/perl5/PPIx/Regexp/Node/
/usr/share/perl5/PPIx/Regexp/Node.pm
/usr/share/perl5/PPIx/Regexp/Node/Range.pm
/usr/share/perl5/PPIx/Regexp/Node/Unknown.pm
/usr/share/perl5/PPIx/Regexp/StringTokenizer.pm
/usr/share/perl5/PPIx/Regexp/Structure/
/usr/share/perl5/PPIx/Regexp/Structure.pm
/usr/share/perl5/PPIx/Regexp/Structure/Assertion.pm
/usr/share/perl5/PPIx/Regexp/Structure/BranchReset.pm
/usr/share/perl5/PPIx/Regexp/Structure/Capture.pm
/usr/share/perl5/PPIx/Regexp/Structure/CharClass.pm
/usr/share/perl5/PPIx/Regexp/Structure/Code.pm
/usr/share/perl5/PPIx/Regexp/Structure/Main.pm
/usr/share/perl5/PPIx/Regexp/Structure/Modifier.pm
/usr/share/perl5/PPIx/Regexp/Structure/NamedCapture.pm
/usr/share/perl5/PPIx/Regexp/Structure/Quantifier.pm
/usr/share/perl5/PPIx/Regexp/Structure/RegexSet.pm
/usr/share/perl5/PPIx/Regexp/Structure/Regexp.pm
/usr/share/perl5/PPIx/Regexp/Structure/Replacement.pm
/usr/share/perl5/PPIx/Regexp/Structure/Script_Run.pm
/usr/share/perl5/PPIx/Regexp/Structure/Subexpression.pm
/usr/share/perl5/PPIx/Regexp/Structure/Switch.pm
/usr/share/perl5/PPIx/Regexp/Structure/Unknown.pm
/usr/share/perl5/PPIx/Regexp/Support.pm
/usr/share/perl5/PPIx/Regexp/Token/
/usr/share/perl5/PPIx/Regexp/Token.pm
/usr/share/perl5/PPIx/Regexp/Token/Assertion.pm
/usr/share/perl5/PPIx/Regexp/Token/Backreference.pm
/usr/share/perl5/PPIx/Regexp/Token/Backtrack.pm
/usr/share/perl5/PPIx/Regexp/Token/CharClass/
/usr/share/perl5/PPIx/Regexp/Token/CharClass.pm
/usr/share/perl5/PPIx/Regexp/Token/CharClass/POSIX/
/usr/share/perl5/PPIx/Regexp/Token/CharClass/POSIX.pm
/usr/share/perl5/PPIx/Regexp/Token/CharClass/POSIX/Unknown.pm
/usr/share/perl5/PPIx/Regexp/Token/CharClass/Simple.pm
/usr/share/perl5/PPIx/Regexp/Token/Code.pm
/usr/share/perl5/PPIx/Regexp/Token/Comment.pm
/usr/share/perl5/PPIx/Regexp/Token/Condition.pm
/usr/share/perl5/PPIx/Regexp/Token/Control.pm
/usr/share/perl5/PPIx/Regexp/Token/Delimiter.pm
/usr/share/perl5/PPIx/Regexp/Token/Greediness.pm
/usr/share/perl5/PPIx/Regexp/Token/GroupType/
/usr/share/perl5/PPIx/Regexp/Token/GroupType.pm
/usr/share/perl5/PPIx/Regexp/Token/GroupType/Assertion.pm
/usr/share/perl5/PPIx/Regexp/Token/GroupType/BranchReset.pm
/usr/share/perl5/PPIx/Regexp/Token/GroupType/Code.pm
/usr/share/perl5/PPIx/Regexp/Token/GroupType/Modifier.pm
/usr/share/perl5/PPIx/Regexp/Token/GroupType/NamedCapture.pm
/usr/share/perl5/PPIx/Regexp/Token/GroupType/Script_Run.pm
/usr/share/perl5/PPIx/Regexp/Token/GroupType/Subexpression.pm
/usr/share/perl5/PPIx/Regexp/Token/GroupType/Switch.pm
/usr/share/perl5/PPIx/Regexp/Token/Interpolation.pm
/usr/share/perl5/PPIx/Regexp/Token/Literal.pm
/usr/share/perl5/PPIx/Regexp/Token/Modifier.pm
/usr/share/perl5/PPIx/Regexp/Token/NoOp.pm
/usr/share/perl5/PPIx/Regexp/Token/Operator.pm
/usr/share/perl5/PPIx/Regexp/Token/Quantifier.pm
/usr/share/perl5/PPIx/Regexp/Token/Recursion.pm
/usr/share/perl5/PPIx/Regexp/Token/Reference.pm
/usr/share/perl5/PPIx/Regexp/Token/Structure.pm
/usr/share/perl5/PPIx/Regexp/Token/Unknown.pm
/usr/share/perl5/PPIx/Regexp/Token/Unmatched.pm
/usr/share/perl5/PPIx/Regexp/Token/Whitespace.pm
/usr/share/perl5/PPIx/Regexp/Tokenizer.pm
/usr/share/perl5/PPIx/Regexp/Util.pm