Yes, vim.

To me, the one useful thing in an IDE would be the ability to jump directly to locations (editor-wise) Perl has warned or died at. In a debugging situation I can do without the extra demand on short-term memory to remember line numbers, nor am I fond of copy/pasting long file names.

The module Vi::QuickFix does that for me. With use Vi::QuickFix in the main program, Perl logs errors and warnings to a file vim understands.

That, and a decent versioning system serve me well enough.

Anno