Re: How to launch kdiff3 to compare 2 neighbouring windows in VIM

When I used variable,
[code]

nnoremap <leader>1 :let file1=expand("%:p")<CR>

function! CompareTwoFiles()
execute '!kdiff3' file1 expand("%:p")
endfunc

nnoremap <leader>2 :call CompareTwoFiles()<cr>

[/code]
I got following error
[code]
Error detected while processing function CompareTwoFiles:
line 1:
E121: Undefined variable: file1
E15: Invalid expression: file1 expand("%:p")
[/code]



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