Have a look at Indent settings for Data::Data::Dumper; I use a value of 0 to get a list all on one line for handy debug output.

$Data::Dumper::Indent = 0;
[download]

Works beautifully.

No worries asking vim (or Emacs) questions related to Perl. If it's about Perl, you're loved. If it's about vi(m) you're also loved. If it's about Emacs, some will love you ;)

I've never thought about wrapping output before. I wrap my subs in the following way in my .vimrc.

function GetPerlFold()
  if getline(v:lnum) =~ '^\s*sub\s'
    return ">1"
  elseif getline(v:lnum) =~ '\}\s*$'
    let my_perlnum = v:lnum
    let my_perlmax = line("$")
    while (1)
      let my_perlnum = my_perlnum + 1
      if my_perlnum > my_perlmax
        return "<1"
      endif
      let my_perldata = getline(my_perlnum)
      if my_perldata =~ '^\s*\(\#.*\)\?$'
        " do nothing
      elseif my_perldata =~ '^\s*sub\s'
        return "<1"
      else
        return "="
      endif
    endwhile
  else
    return "="
  endif
endfunction
setlocal foldexpr=GetPerlFold()
setlocal foldmethod=expr
[download]

I'm very curious to find out how this ends up. Never thought of having folds in a dumper output before.

Please supply an example output so that there's something to test/work with. Preferably, within your OP so that everyone has a chance to see it.

> If it's about Emacs, some will love you ;)

talking about ... xD

Activating cperl-mode and hs-minor-mode is all you need to be able to fold Perl data structures with hide-show commands.

Cheers Rolf
_{(addicted to the Perl Programming Language :)
Wikisyntax for the Monastery FootballPerl is like chess, only without the dice}

Try

foldmethod=indent
[download]

and maybe switch to Data::Dump (or not).

(Based on a simple fake structure.)

Or maybe Data::Dump::Color :-) (I find colors generally helpful, plus the module produces other visual aids like: array index, hash key index, and depth indicator.)

You may want to consider using another tool - Data::Printer is currently my favorite. Many years ago, almost a decade ago, I became frustrated with Data::Dumper and used Data::Dumper::PerlTidy when it first was released to CPAN. Since then, I have utilized a number of other modules that I will not list at this time. Data::Printer has been around for quite a while and is well supported. If you need need is formatting only, then its function p() and np() will likely cover your needs.

Cheere, lbe