[rvsjoen@rainbow] ~/.vim $ vim test
Error detected while processing /home/rvsjoen/.vim/plugin/a.vim:
line  625:
E121: Undefined variable: tabNr
E15: Invalid expression: (tabNr != -1)
line  630:
E121: Undefined variable: bufNr
E116: Invalid arguments for function bufwinnr(bufNr)
E15: Invalid expression:  bufwinnr(bufNr)
line  631:
E121: Undefined variable: bufWindow
E15: Invalid expression: (bufWindow == -1)
line  666:
E580: :endif without :if:   endif
line  667:
E193: :endfunction not inside a function
Hit ENTER or type command to continue