I have long been jealous about the great auto-complete feature of Python in Vim. With the wonderful plugin neocomplcache, once you type . after an object, the memeber methods will pop up.

I want this feature for Perl when I type ->. Actually, until today haven't I realized that I already own at my finger tip. The answer is neocomplcache and perlomni.

The installation of neocomplcache and perlomni is easy. If you use the settings from the help of neocomplcache, the key part to triger neocomplcache omni-complete by -> is to change the setting in .vimrc from

let g:neocomplcache_omni_patterns.perl = '\h\w*->\h\w*\|\h\w*::'

to

let g:neocomplcache_omni_patterns.perl = '\h\w*->\|\h\w*->\h\w*\|\h\w*::\|\h\w*::\h\w*'

Make sure omnifunc is PerlComplete.

A little explanation: \h\w*-> will triger the popup window, \h\w*->\h\w* will complete as-you-type. The similar situation goes to :: operator. But do remember that sometimes :: won't triger neocomplcache if the package is not based on the OO that perlomni supports. In this case, C-X C-O will always pop up the window. After this you should see someting like this: